Facility Explorer Fan Coil Unit (FCU) Controller ...

Application Note Fan Coil Unit

Issue Date October 9, 2009

© 2009 Johnson Controls, Inc. www.johnsoncontrols.com

Application Note - Fan Coil Unit (FCU) Controller

Application Note - Fan Coil Unit (FCU) Controller ................................4

Introduction............................................................................................................4

Related Documentation.........................................................................................6

Key Concepts.........................................................................................................7

State-based Control ............................................................................................................. 7

Occupancy Determination.................................................................................................... 8

Zone Temperature Control................................................................................................... 9

Effective Zone Temperature Setpoint Determination ........................................................... 9

Occupied Control Sequencer ............................................................................................. 10

Unoccupied Control Sequencer ......................................................................................... 12

Sequencers........................................................................................................................ 14 Emergency Heat .......................................................................................................... 14 No Airflow..................................................................................................................... 14 Unit Enable................................................................................................................... 15

Control of Staged Devices ................................................................................................. 16 Zone Control of Staged Devices .................................................................................. 16

Device Availability Determination....................................................................................... 16

Output Device Control........................................................................................................ 17 Heating......................................................................................................................... 17 Cooling ......................................................................................................................... 21 Two-Pipe Coil ............................................................................................................... 24 Supply Fan ................................................................................................................... 24

PID Tuning ......................................................................................................................... 27 Integral Time ................................................................................................................ 27 Proportional Band ........................................................................................................ 27 Saturation Time............................................................................................................ 27

FX Builder Application Wizard Concepts ..........................................................29

Installing the FCU Application Package ............................................................................. 29

Selecting the FCU Application Template ........................................................................... 32

Configuring the FCU Application........................................................................................ 33

Code No. LIT-12011305

2 Application Note - Fan Coil Unit (FCU) Controller

Configuring the Control Strategy.................................................................................. 33 Configuring the Network Room Module (NRM)............................................................ 35 Adjusting Setpoints ...................................................................................................... 37 Adjusting Parameters................................................................................................... 38 Adjusting Proportional plus Integral plus Derivative (PID) Parameters ........................ 39 Configuring the Internal Occupancy Schedule............................................................. 40 Viewing the Configuration Summary............................................................................ 41 Viewing Required Inputs and Outputs......................................................................... .41

Selecting the User Interface(s) and Supervisor Interface .................................................. 42

Selecting the Target Device ............................................................................................... 42

Configuring the Hardware I/Os........................................................................................... 43

Generating the Application Files and Documentation ........................................................ 46 Viewing Generated Application and Documentation Files ........................................... 47

Reviewing an Exported Application File............................................................................. 47

FX CommPro Concepts.......................................................................................49

User Interface Concepts......................................................................................49

Medium User Interface....................................................................................................... 50 Medium User Interface Capabilities ............................................................................. 50 Medium User Interface Navigation............................................................................... 51 Config Folder................................................................................................................ 52 NRM Setup Folder ....................................................................................................... 53 Status Folder................................................................................................................ 54 Setpoints Folder ........................................................................................................... 55 Parameters Folder ....................................................................................................... 55 PID Parameters Folder ................................................................................................ 56 Modes .......................................................................................................................... 56 Balancer Folder............................................................................................................ 59 Time Folder .................................................................................................................. 60 Schedulers Folder ........................................................................................................ 61 Password Folder .......................................................................................................... 61 MUI Status LEDs.......................................................................................................... 61 Accessing a Folder in the MUI ..................................................................................... 61 Changing a Configuration Setting, Setpoint, or Parameter in the MUI......................... 61

LCD2x4 User Interface....................................................................................................... 62 LCD2x4 User Interface Capabilities ............................................................................. 62 LCD2x4 User Interface Navigation............................................................................... 63 Config Page ................................................................................................................. 64 NRM Setup Page ......................................................................................................... 65 FX Setup Page............................................................................................................. 66 Setpoints Page............................................................................................................. 66 Parameters Page ......................................................................................................... 67 PID Parameters Page .................................................................................................. 68 Modes .......................................................................................................................... 68 Balancer Page.............................................................................................................. 70 Time Page.................................................................................................................... 71

Application Note - Fan Coil Unit (FCU) Controller 3

Schedulers Page.......................................................................................................... 72 Password Page ............................................................................................................ 72 Events Page................................................................................................................. 73 Graphical Status Icons ................................................................................................. 73 Accessing a Page in the LCD2x4 UI ............................................................................ 73 Changing a Configuration Setting, Setpoint, or Parameter in the LCD2x4 UI.............. 73

Supervisor Interface ............................................................................................74


Application Note - Fan Coil Unit (FCU) Controller

Introduction This application note introduces the standard Fan Coil Unit (FCU) application template, provides procedures to configure the application using FX Builder’s Application Wizard, and explains how to commission the system using the Integral and Medium User Interface and FX CommPro.

The FCU application template consists of a single application software file, which includes multiple configuration options and control strategies for controlling many different types of Fan Coil Units. You use FX Builder’s Application Wizard to select the specific configuration options and control strategies for your specific Fan Coil Unit control requirements. The allowable heating and cooling configuration options appear in Table 1. Other control strategy and configuration selection options appear in Table 2.

Table 1: FCU Heating and Cooling Configuration Options Heating Type Cooling Type None One

Stage FBPD 2-POS

Prop Valve

2-Pipe FBPD 2-POS

2-Pipe Prop Valve

None No Yes Yes Yes No No One Stage Yes Yes Yes Yes No No Face and Bypass Damper (FBPD) 2-Position (POS)

Yes Yes Yes Yes No No

Proportional (Prop) Valve

Yes Yes Yes Yes No No

2-Pipe FBPD 2-POS

No No No No Yes No

2-Pipe Prop Valve

No No No No No Yes


Table 2: FCU Control Strategy and Configuration Options Configuration Setting Allowable Options Temperature Control Strategy Zone Temperature Control Zone Sensor TM-2100

Network Room Module (NRM) Remote Setpoint Type Warm/Cool Adjust

Setpoint Adjust Fan Type One-Speed

Three-Speed Occupied Fan Control Constant Fan

Cycled Fan Unoccupied Control Enable

Disable Reset After Loss of Airflow Manual

Automatic Supply Fan Proof No

Yes Air Filter Status No

Yes Power Fail Restart Enable

Disable Window Switch No

Yes Condensate Switch No

Yes


Related Documentation Table 3: Related Documentation For Information On See Document LIT or Part Number FX06 Overview Information FX06 Field Controller

Product Bulletin LIT-12011165

FX06 Technical Information FX06 Field Controller Technical Bulletin

LIT-12011166

FX07 Overview Information FX07 Field Controller Product Bulletin

LIT-12011268


LIT-12011269


LIT-12011163


LIT-12011164


LIT-12011082


LIT-12011107

FX16 Overview Information FX16 Master Controller Product Bulletin

LIT-12011084

FX16 Technical Information FX16 Master Controller Technical Bulletin

LIT-12011108

FXVMA Overview Information

FXVMA Variable Air Volume (VAV) Box Controller Product Bulletin

LIT-12011363

FXVMA Technical Information

FXVMA VAV Box Controller Technical Bulletin

LIT-12011249

Network Room Module Overview Information

Network Room Modules Product Bulletin

LIT-12011257

Network Room Module Technical Information

Network Room Modules Technical Bulletin

LIT-12011258

Using the Application Wizard

FX Tools Software Package - FX Builder User’s Guide

LIT-12011154

FX Tools Software Package - FX CommPro N2 User’s Guide

LIT-12011152 Downloading and Commissioning

FX Tools Software Package - FX CommPro BACnet User’s Guide

LIT-12011240


Key Concepts State-based Control

Inputs

Parameters

State Generators State Selector Output

Controllers OutputsMisc. Logic

FIG

:sta

te_b

sd_c

trl

Figure 1: State-based Control Diagram

The FCU application uses State-based Control to ensure proper control of the Fan Coil Unit. State-based applications have the following components.

• Inputs: Extracts information from the system. Examples include hardwired sensors (zone temperature sensor), switches (proof of airflow switch), and network overrides (networked outside air temperature).

• Parameters: Refers to pieces of information stored inside the application. Examples include configuration settings, setpoints, unit parameters, and Proportional plus Integral plus Derivatives (PID) parameters. Many parameters are adjustable.

• Miscellaneous Logic: Defines all logic not defined via a state generator or output controller. Examples include occupancy determination and setpoint determination.

• State Generators: Defines the sequences of operation for a specific control system. State Generators need information from the appropriate inputs or parameters or status information from the output controllers to ensure proper sequencing.

• State Selector: Receives state information from all of the state generators. The State Selector then determines the current set of output controller modes based on the current states of all the State Generators.

• Output Controllers: Defines the operation of the output devices (for example, valves, dampers, and fans) based on the modes determined by the State Selector.

• Outputs: Converts the Output Controller information into action. Examples include valve and damper outputs, fan commands, and cooling and heating stage commands.


Occupancy Determination The FCU application:

• supports a local and network occupancy schedule with the network schedule having priority

• supports a network occupancy sensor input

• has a temporary occupancy input and a network occupancy manual command with the network occupancy manual command having priority

Table 4 displays the occupancy determination for the FCU application.

Table 4: Occupancy Determination Occupancy Manual Command

Occupancy Schedule

Occupancy Sensor

Effective Occupancy1

Occupied Occupied Unoccupied

X Unoccupied

Occupied Occupied Bypass Unoccupied Bypass

Standby X

X

Standby Occupied Occupied Unoccupied Standby

Occupied

Invalid2 Occupied

Invalid

Unoccupied X Unoccupied 1. The Effective Occupancy is overridden to Bypass when the Local Bypass input becomes

active and nciTempOccCtrl=TRUE. The Effective Occupancy remains in Bypass for the duration of the Bypass Time.

2. Standby and Bypass states are treated the same as Invalid.


Zone Temperature Control The FCU sequences the controlled devices to control the zone air temperature to a constant setpoint.

Effective Zone Temperature Setpoint Determination The effective (actual) zone temperature setpoint, which the FCU application controls, depends on several inputs including:

• occupied and unoccupied heating and cooling setpoints (configured via cpSetpoints)

• network setpoint override (nviSetpoint)

• network warm/cool adjustment override (nviWarmCoolAdj)

• warm/cool or setpoint adjustment from the zone thermostat

• current effective occupancy state

• zone temperature (from the zone sensor or network zone temperature override nviSpaceTemp)

The effective zone temperature setpoint is calculated using the LON Asymmetrical Setpoint Calculation Method, defined in Figure 2.

First you need to calculate the absolute setpoint offset, which is found using the equation in Figure 2. Setpoint is the local setpoint from the 55°F to 85°F [13°C to 30°C] setpoint adjustment zone thermostat or the network zone temperature override nviSpaceTemp.

absOffset Setpoint nciSetpoints_OccCool nciSetpoints_OccHeat2

Figure 2: Calculate the Absolute Setpoint Offset

Then you need to calculate the effective heating and cooling setpoints based on the effective occupancy mode. If the unit is in the occupied or bypass mode, you can find the effective heating and cooling setpoints using the equations in Figure 3. SetptOffset is the warm/cool adjustment from the zone thermostat or the network warm/cool adjustment override nviWarmCoolAdj.

ClgSetpoint nciSetpoints_OccCool absOffset SetptOffset nviSetptShift_OccCool

HtgSetpoint nciSetpoints_OccHeat absOffset SetptOffset nviSetptShift_OccHeat Figure 3: Calculate the Effective Heating and Cooling Setpoints in

Occupied or Bypass Mode

If the unit is in the standby mode, you can find the effective heating and cooling setpoints using the equations in Figure 4.


ClgSetpoint nciSetpoints_StandbyCool absOffset SetptOffset nviSetptShift_StandbyCool

HtgSetpoint nciSetpoints_StandbyHeat absOffset SetptOffset nviSetptShift_StandbyHeat Figure 4: Calculate the Effective Heating and Cooling Setpoints in Standby

Mode

If the unit is in the unoccupied mode, you can find the effective heating and cooling setpoints using the equations in Figure 5.

ClgSetpoint nciSetpoints_UnOccCool absOffset SetptOffset nviSetptShift_UnOccCool

HtgSetpoint nciSetpoints_UnOccHeat absOffset SetptOffset nviSetptShift_UnOccHeat Figure 5: Calculate the Effective Heating and Cooling Setpoints in

Unoccupied Mode

The effective heating and cooling setpoints are limited by the minimum cooling setpoint and the maximum heating setpoint (which are set to 60.8°F and 86°F [16°C and 30°C]). The FCU application provides for two different physical setpoint adjustments. One setpoint adjustment type is an offset (warm/cool) adjustment and the other setpoint adjustment is an absolute setpoint adjustment. You can only use one setpoint adjustment at any given time.

Occupied Control Sequencer The Occupied Control sequencer generates the appropriate occupied temperature control state for the FCU application. See Table 5 for a description of the Occupied Control sequencer states. See Figure 6 and Figure 7 for a description of the Occupied Control Sequencer process.

Table 5: Occupied Control Sequencer State Description Primary Heat Enters this state if heating is needed. Satisfied Enters this state if no heating or cooling is required. Mech Enters this state if cooling is needed. Shutdown Enters this state if the zone temperature is unreliable.


Start

Heating not required Heating required

Zone Temp unreliable

Shutdown

Zone Temp reliable

Primary Heat

Primary heat not responding heating not required

Heating not required and Heat PID saturated low

Satisfied

A large heating setpoint change was made and heating is not required

and fast sequence is enabled.

FIG

:zon

e_oc

c_ct

rl_se

q_he

at

Figure 6: Zone Occupied Control Sequencer – Heating

Start

Cooling not required Cooling required


Shutdown

Zone Temp reliable

Mech

Mech Cooling not responding and Cooling not required

Cooling not required and Cooling PID

saturated low

Satisfied

A large cooling setpoint change was made and cooling is not required

and fast sequence is enabled.

FIG

:zon

e_oc

c_ct

rl_se

q_co

ol

Figure 7: Zone Occupied Control Sequencer – Cooling


Unoccupied Control Sequencer The Unoccupied Control sequencer generates the appropriate unoccupied temperature control effective state. See Table 6 for a description of the Unoccupied Control Sequencer states. See Figure 8 and Figure 9 for a description of the Unoccupied Control Sequencer process.

Table 6: Zone Unoccupied Sequencer State Description Satisfied Enters this state if no heating or cooling is required. Mech Enters this state if cooling is needed. Primary Heat Enters this state if heating is needed. Idle Enters this state first whenever cooling is needed. This state is

used to allow the fan to start and obtain an accurate reading of the outside air temperature.

Shutdown Enters this state if the zone temperature is unreliable. Disabled Enters this state if Occupancy is not Unoccupied.

Start Zone Temp unreliable

Shutdown

Zone Temp reliable

Primary Heating

Heating Demand is satisfied and the 5 min.

satisfied timer has expired.

SatisfiedUnoccupied control is allowed and

Heating is required and WarmupCooldown is not Cooldown.

Unoccupied control is not allowed but Heating is required and

WarmupCooldown is Warmup.

Occupancy mode is unoccupied.

Occupancy mode is not unoccupied.

Disabled

WarmupCooldown = Cooldown

FIG

:zon

e_un

occ_

seq_

heat

Figure 8: Zone Unoccupied Control Sequencer – Heating


Start

Satisfied

Occupancy mode is unoccupied.

Occupancy mode is not unoccupied.

Disabled

Mech

FCU has started the fans and is ready for temperature

control.

Idle

FCU is not ready for temperature control.

WarmupCooldown is Warmup

Unoccupied control is not allowed but cooling is required and

WarmupCooldown is Cooldown.

Unoccupied Control is allowed and cooling is required and

WarmupCooldown is not Warmup.

WarmupCcoldown is Warmup

Cooling demand is satisfied and the unoccupied timer has expired.


Shutdown

Zone Temp reliable

FI

G:z

one_

unoc

c_se

q_co

ol

Figure 9: Zone Unoccupied Control Sequencer – Cooling


Sequencers Emergency Heat The application determines the Emergency Heat status (On or Off) based on a comparison of the zone temperature with the Emergency Heat Setpoint and Emergency Heat Differential. See Table 7.

Table 7: Emergency Heat State Description On Emergency Heat is required. Off Emergency Heat is not required.

No Airflow The application monitors the supply fan command and proof of flow input and determines whether the current state is Normal, Manual Reset Fault, or Self Reset Fault. Table 8 displays the states in the No Airflow sequencer. Figure 10 displays the No Airflow sequencer process.

Table 8: No Airflow State Description Normal Enters this state when the fan behavior matches the fan command. Manual Reset Fault

Enters this state during the manual reset fault state. The application is in this state because there is no proof of airflow and the unit requires manual intervention to restart.

Self Reset Fault Enters this state during the automatic reset fault state. The application is in this state because there is no proof of airflow and the unit does not require manual intervention to restart.


Normal

Fan status did not start before the startup delay expired.

Fan status was lost for more than the Flow Debounce time.

Fan status on for more than the flow debounce time.

Manual resetSupply fan commanded off

NOT (Manual Reset Required)

Manual Reset Fault

Manual Reset Required

Self Reset Fault

FIG

:no_

air_

flo_2

Figure 10: No Airflow Sequencer

Unit Enable The Unit Enable sequencer starts the unit. If the Power Fail Restart Enable configuration parameter input to the sequencer is disabled (No), then the state output matches the value of the unit enable input. If Power Fail Restart Enable is enabled (Yes), then the state output is true. The state output is true only if the unit enable input is true. The unit is then powered up for a randomly generated time period in the range of 0 seconds to the Maximum Power Fail Restart Delay time. Table 9 displays the states of the Unit Enable sequencer.

Table 9: Unit Enable Sequencer States State Description True Enters this state when the unit is enabled and allowed to run. False Enters this state when the unit is not enabled and not allowed to run.


The value of the unit enable input to the sequencer is determined by the Unit Enable Switch input and the Unit Enable network input (see Table 10).

Table 10: Determination of Unit Enable Input to Unit Enable Sequencer Inputs Result Unit Enable Network Input (nvi)

Unit Enable Switch Input

Unit Enable Input to Sequencer

Disable (0) Closed False Disable (0) Open False Enable (1) Closed False Enable (1) Open True Invalid Closed False Invalid Open True

Control of Staged Devices The FCU application provides a zone control strategy for sequencing staged devices.

Zone Control of Staged Devices Figure 11 shows the staging points for the zone control scheme. The up arrows indicate turn on, and the down arrows indicate turn off. The stages turn on and off based on the PID present value.

Stage 1 On

480

One Stage

%

FIG

:zon

e_ct

r_st

g_de

v_1

Figure 11: Zone Control of Staged Devices

Device Availability Determination Based on outdoor temperature, the FCU application locks out heating (via High Outside Air Temperature Lockout for Heating lockout setpoint) or cooling (via Low Outside Air Temperature Lockout for Cooling lockout setpoint) devices from the network.

An open window sensor typically provides the Energy Hold Off Input and can be an input network variable, a hardware input, or both. If either input indicates the Energy Hold Off state, the Mech Clg Allowed and Primary Heat Allowed are forced to the off state, unless the Emergency Heat Status is active.


The current state of the hardware input is available in the output network variable Energy Hold Off for monitoring purposes. This input also provides the status of a hardwired window contact to another controller in the same area.

You typically strap the condensation sensor to the chilled water pipe upstream of the control valve to a chilled ceiling. The sensor is used to minimize the effects of condensation in the ceiling area that would damage ceiling material and the equipment in the space below.

The Condensation Sensor Input can be an input network variable, hardware input connected to a condensation sensor, or both. When either input indicates the Condensation State, the Cooling Output is forced to the minimum output level (normally zero), and the status is indicated in the output network variable Condensation Sensor for monitoring purposes. The current state of the hardware input is available in the output network variable Condensation to provide the status of a hardwired condensation sensor to another controller in the same area.

Output Device Control Heating The FCU application supports the following heat control options:

• none

• staged heating (1 stage)

• Face and Bypass Damper (FBPD) with two-position valve

• proportional valve

• two-pipe Face and Bypass Damper with two-position valve

• two-pipe proportional valve

Modes of Operation Table 11 displays the modes of operation for the Heat module.


Table 11: Modes of Operation - Heat Mode Description Off All heating devices are turned off, and the modulating heating

output is commanded to 0%. Max The heating valve is opened, and the modulating heating output is

commanded to 100%. Limited Max The modulating heating output is commanded to the Limited Max

Value. This mode is used for unoccupied heating. Water Flush The modulating heating output is commanded to the Water Flush

position. Instant Shutdown

The staged heating binary outputs are immediately de-energized without regard for minimum on-times.

Main Control The modulating heating output is commanded to control the zone temperature.

Shutdown The proportional output is set to either 0% or the low outside air temperature position based on the Shutdown Mode.

Table 12 displays the Heat mode selection.

Application Note – Fan Coil Unit (FCU) Controller 19

Table 12: Heat Mode Selector Table (State Selection) Sequencer States Responding No Airflow Unit

Enable Winter Mode

Emergency Heat

Primary Heat Allowed

System Mode

Unocc Temp Control Effective State

Occ Temp Control State

Heat Type1 Heating Mode

Unoccupied Sequencer Can Control

Occupied Sequencer Can Control

NOT (Staged) Off NOT (Normal)

X X X X X X X Staged Instant

Shutdown NOT (Staged) Off Off X X X X X X Staged Instant

Shutdown Summer X X X X X 2-Pipe Face

and Bypass, 2-Pos 2-Pipe Proportional Valve

Off

Alarm X X X X X Max NOT (Staged) Off False X X X Staged Instant

Shutdown Cool Only Fan Only or Purge Vent

X X X Off

NOT (Staged) Water Flush Water Flush

X X Staged Off

False

NOT (Staged) Off Satisfied Idle

X Staged Instant

Shutdown NOT (Staged) Shutdown Shutdown X Staged Instant

Shutdown

Normal

On

Winter Normal

True

Heat Only Auto

Econ Clg EconMech Mech

X X Off

True

False

Continued on next page . . .

20 Application Note – Fan Coil Unit (FCU) Controller

Sequencer States (Cont.) Responding No Airflow Unit

Enable Winter Mode

Emergency Heat

Primary Heat Allowed

System Mode



Heat Type1 Heating Mode



Primary Heat Secondary Heat

X X Limited Max False

Satisfied Econ Econ Mechr Mech DALL Econ

X Off

NOT (Staged) Shutdown Shutdown Staged Off

Normal On Winter Normal True Heat Only Auto

Disable

Primary Heat Secondary Heat

X Main Control

True

True

1. When Heat Type is 0=None, the Heating Mode is Off and Responding to Unocc Sequencer and Responding to Occ Sequencer are False.


Cooling The FCU application supports the following cooling control options:

• none

• staged cooling (one stage)

• Face and Bypass Damper with two-position valve

• proportional valve

• two-pipe Face and Bypass Damper with two-position valve

• two-pipe proportional valve

Modes of Operation Table 13 displays the modes of operation for the Cooling function.

Table 13: Modes of Operation - Cooling Mode Description Off All cooling devices are turned off, and the modulating cooling

output is commanded to 0%. Limited Max The modulating cooling output is commanded to the Limited

Max Value. This mode is used for unoccupied cooling. Water Flush The modulating cooling output is commanded to the Water

Flush position. Instant Shutdown The staged cooling binary outputs are immediately

de-energized without regard for minimum on-times. Main Control The modulating cooling output is commanded to control the

zone temperature. Shutdown The proportional output is set to either 0% or the low outside air

temperature position based on the Shutdown Mode.

Mode Selection Table 14 displays the Cooling mode selection.


Table 14: Mech Cooling Mode Selector (State Selection) Sequencer States Responding No Airflow

Fan OnOff

Unit Enable

Winter Mode

Emergency Heat

Mech Clg Allowed

System Mode



Mech Clg Type1

Cooling Mode



NOT (Staged)

Off NOT (Normal)

X X X X X X X X

Staged Instant Shutdown

Off X X X X X X X X Off NOT (Staged)

Off Off X X X X X X


Winter X X X X X 2-Pipe Face and Bypass, 2-Pos 2-Pipe Proportional Valve

Off

Alarm X X X X X Off NOT (Staged)

Off False X X X


Normal NOT (Off)

On

Summer Normal

True Heat Only Fan Only Purge Vent

X X X Off

False False



Sequencer States (Cont.) Responding No Airflow

Fan OnOff

Unit Enable

Winter Mode

Emergency Heat

Mech Clg Allowed

System Mode



Mech Clg Type1

Cooling Mode



NOT (Staged)

Water Flush

Water Flush X X

Staged Off

False

NOT (Staged)

Off Satisfied Idle

X


NOT (Staged)

Shutdown Shutdown X


Econ Clg Primary Heat Secondary Heat

X X 0=Off

EconMechMech

X X Limited Max

False

Satisfied Econ Primary Heat Secondary Heat DALL Econ

X Off

NOT (Staged)

Shutdown Shutdown

Staged Off

Normal NOT (Off)

On Summer Normal True

Cool Only Auto

Disable

EconMech OR Mech

X Main Control

True

True

1. When Mech Clg Type is 0=None, the Cooling Mode is OFF and Responding to Unocc Sequencer and Responding to Occ Sequencer are FALSE.


Two-Pipe Coil The FCU application supports a two-pipe cooling coil. The two-pipe coil supports proportional valve control and Face and Bypass Damper control with a two-position valve. See Heating and Cooling for modes of operation.

Supply Fan The FCU application supports two supply fan options: single-speed and three-speed. Supply fan speed is based on the supply fan mode.

Modes of Operation Table 15 the modes of operation for the Supply Fan function.

Table 15: Modes of Operation – Supply Fan Mode Description Auto The fan speed is determined by the Heating/Cooling percent

command. Off The fan is off. Fan Only The fan is overridden from the network or from the manual

three-speed fan speed adjustment. Max Speed The fan is on at maximum speed.

Mode Selection Table 16 displays the Supply Fan mode selection.


Table 16: Supply Fan Mode Selector Airflow Mode

Unit Enable

Emergency Heat

System Mode

Unocc Seq Control Effective State

Fan Override State

Occ Seq Control State

Occ Fan Control

Supply Fan Mode

Manual Restart Fault

X X X X X X X Off

Disable X X X X X X Off Alarm X X X X X Max

Speed Water Flush

X X X X Off

Satisfied Idle Shutdown

X X X Off

NOT (Auto)

X X Fan Only

Shutdown X Off 0=Continuous Fan

Auto Satisfied

Cycled Fan Off

NOT (Manual Restart Fault)

Enable

NOT (Alarm)

NOT (Water Flush)

Mech Primary Heat Disable

Auto

Mech Primary Heat

X Auto

Figure 12: Single-Speed Fan Speed Determination


Off *0%

Fan Speed

Htg/Clg percent command

30% 60% 90%

Low

Med

High

*Fan turns off when Fan Off Delay has expired

Diff **

**Fan Speed Differential

Diff **Diff **

FIG

:3_s

pd_f

an_s

pd

Figure 13: Three-Speed Fan Speed Determination

Fan Speed Override In Fan Only mode, you can override a single-speed (Figure 12) or three-speed (Figure 13) fan from a network via override points (Fan Override State and Fan Override Position, Table 17). You can also manually override a three-speed fan using the Three-Speed Fan Override adjust from a TM-2100 or NRM Room Command Module. A manual override command takes priority over a network override command. You cannot override the fan if the Unoccupied Control Sequencer Effective State is Satisfied, Idle, or Shutdown.

Table 17: Fan Speed Override Commands Fan Option Fan Override State Fan Override Position (%) Fan Speed

Off X Off1 0% Off1 On-L-M-H 1-100% On

Single-Speed

Auto Override Released Off X Off1 On-L-M-H 0%

1-30% 31-60% 61-100%

Off1 Low Med High

Three-Speed

Auto Override Released 1. Fan output turns off when the Fan Off Delay has expired.


Occupied Fan Control You can configure the Supply Fan to either run continuously or to turn off when the unit is in an occupied mode and satisfied (no heating or cooling is required). When the configuration parameter Occupied Fan Control is set to Constant Fan, the fan continues to run at minimum speed when no heating or cooling is required. When the parameter is set to Cycle Fan, the fan turns off during satisfied periods.

PID Tuning If tuning is required, you must manually tune the PIDs in this application. All of the default temperature control PID tuning parameters are based on a zone temperature control process.

Use Table 18 as a conservative starting point if you are manually turning the PID. Further manual turning may be required.

Table 18: PID Tuning Parameters Integral Time (Seconds)

Proportional Band (Diff Deg. F)

Saturation Time (Seconds)

890 7.2°F (4°C) 830

Integral Time The time required by the integral action to contribute the same amount to the controller output as the proportional term for a constant error.

Proportional Band The amount of change in the Process Variable that produces a full range change (High Limit - Low Limit) in the Present Value. It must be greater than zero.

Saturation Time The amount of time the Present Value must be at the Low or High Limit for the saturation status to be set to either Low or High.


Figure 14: PID Tuning – Temperature vs. Time


FX Builder Application Wizard Concepts The FX Builder software tool allows you to create and export application software for FX Field Controllers. FX Builder includes an Application Wizard, which allows you to easily create application software from predefined templates. These application templates are factory designed and tested and include several configuration options for you to choose from.

The FCU application template includes predefined features and functionality that you can select, enable/disable, and adjust with the Application Wizard. Examples of configuration options include:

• heating and cooling configuration

• choice of room sensor type

• configurable control strategies

• adjustable setpoints, parameters, and tuning parameters

• selectable user interface and supervisory interface

• configurable input/output types and channel assignments

The following sections provide detailed procedures on how to use FX Builder’s Application Wizard to install and select the FCU application template and to configure and export a unique FCU application file.

Installing the FCU Application Package To install the FCU Application Package:

1. Obtain the FCU Application Package and save it to your local hard disk.

2. Launch FX Builder.

3. Click Settings > Application Wizard Preferences (Figure 15).


Figure 15: Settings > Application Wizard Preferences Menu

The Application Wizard Preferences dialog box appears (Figure 16).

Figure 16: Application Wizard Preferences Dialog Box without Packages

Installed

4. Under File Preferences, select the documents you want to generate. Documentation types which you can select include:

• Hardware I/O Documentation

• Protocol Documentation

• Network Protocol Files (N2 Print Files, LON Resource files)


Note: The default is to generate all three types of documentation. We highly recommend you keep the preferences at these defaults, so that all documentation types are generated.

5. If desired, change the File Location to where the generated files are exported.

6. Click Install… and navigate to the location of the FCU Application Package as performed in Step 1.

7. Select the Fan Coil Unit.dbe Application Package and click Open (Figure 17).

Figure 17: Select Package Dialog Box

The Application Package is installed in the Application Wizard Preferences dialog box (Figure 18).

Figure 18: Application Wizard Preferences Dialog Box with FCU Package

Installed

8. Click Ok to exit the Application Wizard Preferences dialog box.


Selecting the FCU Application Template To select the FCU Application Template:

1. Open FX Builder.

2. Click File > Application Wizard (Figure 19). The Select an Application Template window appears.

Figure 19: File > Application Wizard Menu

3. On the left side of the window, open the Terminal Units folder and select the Fan Coil Unit Application Template (Figure 20).

Figure 20: Selecting the Fan Coil Unit Application Template


4. Click Next. A status bar appears while the selected application template and plug-ins are loaded into FX Builder (Figure 21).

Figure 21: Loading Application Status Bar

The Configure plug-in appears when the application is loaded (Figure 22).

Configuring the FCU Application The Configure dialog contains tabbed views of the control strategy configuration options, setpoints, and parameters that you can select and adjust in the FCU application.

Configuring the Control Strategy To configure the control strategy:

1. Click the Configuration tab. The FCU application’s control strategy configuration options and default values appear (Figure 22).

Figure 22: Fan Coil Unit Configuration Plug-in

2. Modify the configuration settings as needed. Use Table 19 as a reference.


Table 19: Configuration Options

Configuration Setting

Description Options/Adjustment Range

Mechanical Configuration Zone Sensor Selection

Select the type of zone sensor

TM2100 Network Room Module (NRM)

Remote Setpoint Type

Select the type of remote setpoint adjustment

Absolute Setpoint Warmer/Cooler

Two Pipe Heating/Cooling

Select if the unit is a 2-pipe heating/cooling unit

No Yes

Cooling Type Select the type of cooling None One stage Face and Bypass Damper with 2-Position Valve Proportional Valve

Heating Type Select the type of heating None One stage Face and Bypass Damper with 2-Position Valve Proportional Valve

Coil Protection Shutdown Action

Select the valve’s action when low Outside Air Temperature (OAT) shutdown occurs

Close Go to low OAT position

Fan Control Fan Type Select the type of fan Single speed

Three speed Fan Cycle Occd Select how to control fan

during occupied mode Constant (keep fan constantly on) Cycle (cycle fan with heating and cooling)

UnOcc Control Do you want to enable unoccupied control?

No Yes

Temp Occ Ctrl Enable/disable temporary occupancy control. When enabled, rotating the adjustment dial during the unoccupied mode initiates a period of temporary occupancy.

No (disabled) Yes (enabled

Alarm Selection Supply Fan Proof Do you have a proof of supply

flow switch? No Yes

Dirty Filter Indication

Do you have a switch to indicate dirty filter?

No Yes



Configuration Setting (Cont.)


Miscellaneous Loss of Airflow Select the type of reset

required after shutdown occurs due to loss of airflow

Manual reset Automatic reset

Power Fail Restart Enable/disable the Power Fail Restart feature

Yes No

Window Switch Window switch enabled? No = disable Yes = enable

Condensate Switch Condensate switch enabled? No = disable Yes = enable

Configuring the Network Room Module (NRM) The NRM Config tab appears only if you selected the NRM as the Zone Sensor configuration option. The NRM Config tab contains the options and setpoints that you can select and adjust for the NRM in the FCU application.

To configure the NRM:

1. Click the NRM Config tab. The FCU application’s NRM configuration options and default values appear (Figure 23).

Figure 23: NRM Configuration Plug-in

2. Modify the NRM configuration options and settings as needed. Use Table 20 as a reference.


Table 20: NRM Configuration Options

Configuration Setting


Setpoint Adjust Type Remote Setpoint Select the type of remote

setpoint adjustment Setpoint Adjust 55-85 Deg F Absolute Setpoint Warm-Cool Adjust

Display Units Select the units of measure to

be displayed at the NRM US (Deg F) SI (Deg C)

Default View Select the default view of the Liquid Crystal Display (LCD)

Temperature Setpoint

Backlight Time Enter the amount of time the LCD backlight stays lit

0 to 6,553.4 seconds

UnOcc Blink Enable/disable LCD blinking when in unoccupied mode

No Display Blink Display Blink

Maint Icon Enable/disable the displaying of the maintenance icon (wrench). When enabled, the wrench appears if the following occurs: • unreliable space

temperature • no communication with

controller

Disable Enable

Temp Occ Time Enter the temporary occupancy time

0 to 9,999 minutes

Setpoint Default Setpoint Enter the setpoint to be used

upon recovery from a power failure

55.0 to 85.0°F (12.8 to 29.4°C)

Low Limit Enter the minimum amount of setpoint adjustment allowed

55.0 to 85.0°F (12.8 to 29.4°C)

High Limit Enter the maximum amount of setpoint adjustment allowed

55.0 to 85.0°F (12.8 to 29.4°C)


Adjusting Setpoints The Setpoints tab contains the setpoints that you can adjust in the FCU application.

To adjust setpoints:

1. Click the Setpoints tab. The FCU application’s setpoints and their default values appear (Figure 24).

Figure 24: Setpoints Plug-in

2. Adjust the setpoints as needed. Use Table 21 as a reference. Table 21: FCU Setpoints

Setpoint Type Description Adjustment Range Zone Setpoints Occ Clg Setpt Enter the occupied cooling

setpoint 60 to 80°F (15.6 to 26.7°C)

SB Clg Setpt Enter the standby cooling setpoint

60 to 100°F (15.6 to 37.8°C)

UnOcc Clg Setpt Enter the unoccupied cooling setpoint

60 to 100°F (15.6 to 37.8°C)

Occ Htg Setpt Enter the occupied heating setpoint

60 to 80°F (15.6 to 26.7°C)

SB Htg Setpoint Enter the standby heating setpoint

55 to 80°F (12.8 to 26.7°C)

UnOcc Htg Setpt Enter the unoccupied heating setpoint

55 to 80°F (12.8 to 26.7°C)

Lockouts Clg Lockout Enter the outside air

temperature lockout for cooling 0 to 100°F (-17.8 to 37.8°C)

Htg Lockout Enter the outside air temperature lockout for heating

0 to 100°F (-17.8 to 37.8°C)

Emergency Heat Emerg Heat Setpt Enter the emergency heating

setpoint 35 to 50°F (1.7 to 10°C)

Emerg Heat Diff Enter the emergency heating differential

0.9 to 5.4°F (0.5 to 3°C)


Adjusting Parameters The Parameters tab contains the system parameters that you can adjust in the FCU application. To adjust parameters:

1. Click Parameters. The FCU system parameters and their default values appear (Figure 25).

Figure 25: Parameters Tab

2. Adjust the system parameters as needed. Use Table 22 as a reference. Table 22: FCU System Parameters

Parameter Type Description Adjustment Range System Power Fail Restart Enter the maximum power fail

restart time. 0 to 180 seconds

Fan Off Delay Enter the fan off delay time 0 to 120 seconds Airflow Start Delay Enter the maximum amount

of time allowed for the fan to prove after it has been commanded

0 to 60 seconds

Airflow Debounce Enter the amount of time a temporary loss of airflow is ignored before action is taken

0 to 120 seconds

Low OAT Setpt Enter the Low OAT Setpoint. When the outside air temperature is below this setpoint, the heating or cooling valve is opened to the Valve Low Outside Air Temperature Position

35 to 45°F (1.7 to 7.2°C)



Parameter Type (Cont.)

Description Adjustment Range

Cooling Clg Lim Max Pos Enter the cooling limited

maximum position 0 to 100% open

Htg Lim Max Pos Coil Protection-Low OAT

Low OAT Position Enter the valve’s position during Low OAT Shutdown (if enabled)

0 to 100% open

Flush Position Miscellaneous Fan Diff Enter the fan differential 5 to 30% Fast Seq Enable Fast Seq Threshold Enter the amount of

setpoint change needed to switch states during the Fast Sequence mode

0 to 10°F (0 to 5.6°C)

Temp Occ Time Enter the temporary occupancy time

0 to 9,999 seconds

Adjusting Proportional plus Integral plus Derivative (PID) Parameters The PID Parameters tab contains the tuning parameters (proportional bands, integration times, and saturation times) that you can adjust in the FCU application.

To adjust PID parameters:

1. Click PID Parameters. The FCU application’s PID Parameters and default values appear (Figure 26).

Figure 26: PID Parameters Tab

2. Modify the PID Parameters as needed. Use Table 23 as a reference:


Table 23: FCU PID Parameters

Parameter Type Description Adjustment Range Cooling Clg PB Enter the cooling proportional

band 0 to 100°F (0 to 55.6°C)

Clg Iterm Enter the cooling integration time

0 to 6,553 seconds

Clg Sat Time Enter the cooling saturation time

0 to 6,553 seconds

Heating Htg PB Enter the heating proportional

band 0 to 100°F (0 to 55.6°C)

Htg ITerm Enter the heating integration time

0 to 6,553 seconds

Htg Sat Time Enter the heating saturation time

0 to 6,553 secodns

Configuring the Internal Occupancy Schedule The Schedule and Calendar tabs allow you the ability to configure the internal occupancy schedule.

Note: Using the internal occupancy schedule is optional. You can use an external, network schedule and calendar as an alternative.

To configure the internal occupancy schedule:

1. Click Schedule tab. See Figure 27.

2. Configure the Weekly Schedule. Click and drag to select the desired occupied (on) period for a day of the week. Right-click in the selected time period and selected Status > On. Repeat for the other occupied time periods and other desired days of the week. When finished, click Apply.

Figure 27: FCU Weekly Schedule


3. Click the Calendar tab (Figure 28). Configure the Holiday Calendar. Click the desired dates and right-click to assign the status (holiday or alternate).

4. When finished, click Apply to set the Calendar.

Figure 28: FCU Calendar

Viewing the Configuration Summary The Config Summary tab provides a summary for all configuration settings, and setpoint and parameter adjustments, made during the configuration session.

To view the configuration summary:

1. Click Config Summary. The Configuration Summary report appears (Figure 29).

2. View the summary here or, to save the summary to a document, right-click the summary information and select Copy to clipboard, then paste it into a document.

Figure 29: Configuration Summary Window


Selecting the User Interface(s) and Supervisor Interface The Choose Interfaces (Figure 30) dialog box provides User Interface and Supervisor Interface options. Click Previous to return to the Configuration session to select different configuration options or to change setpoints and parameters.

To select the user interface(s) and supervisor interface:

1. Choose the desired User Interface(s).

2. Choose the desired Network Protocol.

Figure 30: Choose Interfaces Dialog Box

3. Click Next to select the FX controller. The Select Target Device dialog box appears (Figure 31).

Selecting the Target Device The Select Target Devices dialog box provides options for the target controller based on the configuration settings you selected.

To select the target device:

1. Select a device and click Next.


Figure 31: Select Target Device Dialog Box - Approved Devices Tab

The Configure Hardware I/O window appears (Figure 33).

Note: If the device you want to use does not appear in the list of approved devices, click the Rejected Devices tab and view the Reason for the rejection (Figure 32). You can also click the Exclusion Details button for more details.

Then, based on the rejection reasons, click Previous to return to the configuration plug-ins and edit the appropriate configuration(s) to configure the device so it is an approved device for the application.

Figure 32: Rejected Devices Tab

Configuring the Hardware I/Os The Configure Hardware I/O window is organized into tabs based on I/O type (Analog Inputs, Analog Outputs, and Digital Outputs).

To configure the hardware I/Os:

1. Click the Analog Inputs tab. Change the Sensor Type and Channel Number for the desired objects (Figure 33).


Figure 33: Configure Hardware I/O Window—Analog Inputs Tab

2. Click the Analog Outputs tab. Change the Actuator Type and Channel Number for the desired object (Figure 34).

Figure 34: Configure Hardware I/O Window—Analog Outputs Tab

3. Click the Digital Inputs tab. Change the Channel Number for the desired object (Figure 35).


Figure 35: Configure Hardware I/O Window—Digital Inputs Tab

4. Click the Digital Outputs tab. Change the Channel Number for the desired object (Figure 36).

Figure 36: Configure Hardware I/O Window—Digital Outputs Tab

Note: Each Channel Number must be unique. The Status column alerts you with a yellow alert symbol if multiple channels are assigned the same number. Correct the Channel Number so each channel has a unique number and all Status symbols are green (Figure 37).

Figure 37: Channel Number Status Alert

5. Click Next. The Generate Application dialog box appears (Figure 38).


Generating the Application Files and Documentation This is the final step in creating and generating the Application files and documentation (Figure 38).

To generate the application files and documentation:

1. Edit or enter a Name for the Application.

2. Enter the name of the Application designer in the Prepared By field (or department name, employee ID, other relevant information), if desired.

3. Enter information relevant to the Application, design, notes for other Application users, or other information in the Description field, if desired.

4. Navigate to the directory folder where you want the application files to be exported (if different than the Application File default location shown).

5. If desired, change the name of the .apd file in the Application File field, but do not change the .apd extension.

Figure 38: Generate Application Window

6. Click Finish.

The Application Wizard generates the application files and documentation and then closes. The bottom of the FX Builder window displays a status for each loaded application object. When all application objects are loaded, the Generating Documentation status bar displays in the middle of the screen (Figure 39).

Figure 39: Generating Documentation Status Bar


7. Click OK when the Application Compile completed! dialog box appears (Figure 40).

Figure 40: Application Compile Completed! Dialog Box

The Application Wizard generates the Application and its corresponding files and documentation. The types of files generated depend on the selections made in the Application Wizard Preferences dialog box (Figure 16) and Configuration Options plug-ins.

Viewing Generated Application and Documentation Files To view generated application and documentation files, go to the destination folder designated in the Application File field.

Reviewing an Exported Application File The Application Wizard includes a synchronization feature that allows you to match an exported application file (*.apd) to its template. This feature allows you to use the Application Wizard screens to review and/or change any of the options, settings, or selections made to an exported application file.

To use this feature:

1. Open the Application Wizard.

2. Click Synchronize Application Template (Figure 41).


Figure 41: Synchronize Application Template

The Open Application dialog box appears (Figure 42).

Figure 42: Open Application Dialog Box

3. Navigate to the location of your exported *.apd file, select it and click Open. The Application Wizard reappears, showing if the selected application matches an installed template (Figure 43).


Figure 43: Application Template Match

4. Click Next. The Application Wizard appears, showing the actual configuration settings, setpoints, adjustment parameters, user interface selection(s), protocol choice, target controller selection, and I/O configurations that were originally made before the application file was exported. You can now use the Application Wizard to view and/or change these settings as desired.

FX CommPro Concepts FX CommPro is a software tool that you use to perform the following functions:

• download the application file to the target controller(s)

• monitor data points

• issue overrides

• adjust unit setpoints and parameters

For detailed information on downloading and commissioning with FX CommPro, refer to the FX CommPro N2 User’s Guide (LIT-12011152) or FX CommPro BACnet User’s Guide (LIT-12011240).

User Interface Concepts The FCU application template supports a choice of two User Interfaces: the Medium User Interface (MUI) and the LCD2x4 User Interface.


Medium User Interface The MUI (Version 3) is an optional hardware accessory consisting of the following:

• 4-line by 26-character Liquid Crystal Display (LCD)

• 6 keys: up, down, left, right, Enter, and Escape

• 10 discrete status Light-Emitting Diodes (LEDs)

Figure 44: Medium User Interface (MUI)

The MUI connects to the Remote Display bus of the FX Field Controller, and you can mount the MUI locally or remotely, or use it as a handheld tool.

Medium User Interface Capabilities The FCU application template includes a predefined MUI configuration. The MUI configuration organizes information into folders and pages, which you navigate through using the keypad and display.

You use the MUI to perform the following functions:

• monitor control points and system status

• adjust setpoints and unit parameters

• initiate overrides

• select the desired display units of measures


Medium User Interface Navigation Upon powerup, the MUI displays the Home Page, showing system information (Table 24). Table 24: MUI Home Page Contents

Display Name Description Units/Enumeration Zone Temperature

Zone temperature °F/°C

Act Clg SP Actual cooling setpoint °F/°C Act Htg SP Actual heating setpoint °F/°C Outside Air Temp

Outside air temperature °F/°C

Rem SP Adj Remote setpoint adjustment °F/°C W/C Adj Warmer/cooler adjustment °F/°C Sup Fan Cmd Supply fan command Off = off

On = on Supply Fan Status

Supply fan status Off = off On = on

Filter Switch Filter switch status Clean = clean Dirty = dirty

Clg Vlv Out Chilled water valve output % open Htg Vlv Out Hot water valve output % open Clg Cmd Cooling command Off = off

On = on Htg Cmd Heating command Off = off

On = on FBPD Output Face and bypass damper output % open

In addition to the Home Page, the MUI also includes 11 folders of information accessible from the MUI’s Main Menu.

Table 25: FCU MUI Folders Folder User Access

Level Contents

Config All FCU application configuration settings NRM Setup All NRM configuration settings Status All Input and output status Setpoints All Setpoints Parameters All Miscellaneous setpoints and parameters PID Parameters All Proportional bands, integration times, and

saturation times Modes All Sequencer modes and states Balancer All Override points Time All Time Scheduler All Schedulers Password All User management


Config Folder The Config folder contains one page showing the configuration settings made during the Application Wizard session. These settings are read-only (you cannot change the FCU configuration from the MUI). See Table 26.

Table 26: MUI Config Page Contents Display Name Description Units/Enumeration SP Adj Type Setpoint adjustment type Setpoint = absolute

setpoint Warm-Cool = warmer/cooler

Two Pipe Coil Two-pipe heating/cooling unit? No = no Yes = yes

Two Pipe Type Type pipe heating/cooling type Face = Face and Bypass Damper Prop = proportional valve

Mech Cool Type Cooling type None = no cooling One Stage = 1 stage FBPD = Face and Bypass Damper Prop = proportional valve

Heat Type Heating type None = no cooling One stage = 1 stage FBPD = Face and Bypass Damper Prop = proportional valve

Fan Type Supply fan type 1SPD = single speed fan 3SPD = three speed fan

Occ Fan Control Occupied fan control type Constant = constant fan Cycling = cycled fan

Unocc Control Unoccupied control enabled? No = no Yes = yes

Shutdown Action Valve action when low OAT shutdown occurs

Cls Vlv = go to closed position LoOATPos = go to low OAT position

Restart Type Type of reset required after loss of airflow shutdown occurs

Automatic = automatic reset Manual = manual reset



Display Name (Cont.)

Description Units/Enumeration

PF Restart Enable Power fail restart enabled? No = no Yes = yes

SF Proof Supply fan proof enabled? No = no Yes = yes

Filter Switch Filter switch enabled? No = no Yes = yes

FBPD Polarity Face and Bypass Damper Polarity Direct Reverse

Thermostat Type Room sensor type TM-2100 = TM-2100 NRM = NRM

Enable Temp Occ Enable/disable temporary occupancy control. When enabled, rotating the adjustment dial during the unoccupied mode initiates a period of temporary occupancy.

No = disable Yes = enable

Window Switch Window switch enabled? No = disable Yes = enable

Condensate Sensor Condensate sensor enabled? No = disable Yes = enable

NRM Setup Folder The NRM Setup folder contains one page of adjustable NRM configuration settings (see Table 27). Table 27: MUI NRM Setup Page Contents

Display Name Description Units/Enumeration NRM Temp Units

Units of measure displayed at the NRM Deg C = °C Deg F = °F

NRM Default View

The default view of the LCD Setpoint = show setpoint Temp = show space temperature

NRM Backlight Time

The amount of time the LCD backlight stays lit

Seconds

Enable UnOcc Blink

Enable/disable LCD blinking when in unoccupied mode

No = no display blink Yes = display blink

Maint Ico Ena Enable/disable the displaying of the maintenance icon (wrench). When enabled, the wrench appears if: • unreliable space temperature • no communication with the controller

Enable = enable Disable = disable

Default NRM Abs SP

The setpoint used upon recovery from a power cycle

°F/°C

High SP Limit The maximum amount of setpoint adjustment allowed

°F/°C

Low SP Limit The minimum amount of setpoint adjustment allowed

°F/°C

Space Temp Offset

Space temperature sensor offset (used to calibrate the space temperature sensor)

°F/°C


Status Folder The Status folder contains four pages showing the current values/states of the inputs and outputs (see Table 28 through Table 31). Table 28: MUI Status Folder Analog Inputs Page Contents

Display Name Description Units/Enumeration Zone Temperature Zone temperature °F/°C Outside Air Temp Outside air temperature °F/°C Rem SP Adj Remote setpoint adjustment °F/°C W/C Adj Warmer/cooler adjustment °F/°C

Table 29: MUI Status Folder Digital Inputs Page Contents

Display Name Description Units/Enumeration Supply Fan Status Supply fan status Off = off

On = on Filter Switch Filter switch status Clean = clean

Dirty = dirty Energy Hold Off Window switch status No = No

Yes = Yes Condensation Condensation switch status Normal = Normal

Alarm = Alarm

Table 30 : MUI Status Folder Analog Outputs Page Contents

Display Name Description Units/Enumeration Clg Vlv Out Chilled water valve output % open Htg Vlv Out Hot water valve output % open FBPD Out Face and bypass damper output % open

Table 31: MUI Status Folder Digital Outputs Page Contents

Display Name Description Units/Enumeration Supply Fan Cmd Supply fan command Off = off

On = on Clg Cmd Cooing command Off = off

On = on Htg Cmd Heating command Off = off

On = on Supply Fan Speed Low Low speed fan command Off = off

On = on Supply Fan Speed Med Medium speed fan command Off = off

On = on Supply Fan Speed High Off = off Off = off

On = on


Setpoints Folder The Setpoints folder contains one page of adjustable setpoints. See Table 32. Table 32 : MUI Setpoints Page Contents

Display Name Description Units/Enumeration Occ Clg SP Occupied cooling setpoint °F/°C SB Clg SP Standby cooling setpoint °F/°C UnOcc Clg SP Unoccupied cooling setpoint °F/°C Occ Htg SP Occupied heating setpoint °F/°C SB Htg SP Standby heating setpoint °F/°C UnOcc Htg SP Unoccupied heating setpoint °F/°C Clg OAT Lockout Outside air cooling lockout °F/°C Htg OAT Lockout Outside air heating lockout °F/°C Emerg Heat SP Emergency heating setpoint °F/°C Emerg Heat SP Df Emergency heating setpoint

differential °F/°C

W/C Adjust Range Warmer/cooler adjustment range °F/°C

Parameters Folder The Parameters folder contains one page of adjustable miscellaneous setpoints and unit parameters. See Table 33. Table 33: MUI Parameters Page Contents

Display Name Description Units/Enumeration PF Max Restart Time Maximum power fail restart time Seconds Fan Off Delay Fan off delay Seconds AirFlow Start Time Maximum amount of time allowed

for the fan to prove after it has been commanded on

Seconds

AirFlow Debounce Amount of time a temporary loss of airflow is ignored before action is taken

Seconds

Low OAT SP Low outside air temperature setpoint. When the outside air temperature is below this setpoint, the heating or cooling valve is opened to the Low OAT position

°F/°C

Clg Lim Max Pos Cooling limited maximum position % open Htg Lim Max Pos Heating limited max position % open Vlv Low OAT Pos Valve’s Low OAT position % open Vlv Flush Pos Valve’s Flush position % open Fan Speed Diff Fan speed differential % Continued on next page . . .


Display Name (Cont.) Description Units/Enumeration Fast Seq Enable Enable/disable fast sequence.

When enabled, the application switches between Heat, Satisfied, and Cool states faster (does not wait for saturation times to expire).

°F/°C

Fast Seq Thresh Amount of setpoint change needed to switch states during the Fast Sequence mode

Disable = disable Enable = disable

Temp Occ Time Temporary occupancy time Minutes

PID Parameters Folder The PID Parameters folder contains one page of adjustable PID tuning parameters, such as proportional bands, integration times, and saturation times. See Table 34. Table 34: MUI PID Parameters Page Contents

Display Name Description Units/Enumeration Clg Prop Band Cooing proportional band °F/°C Clg Int Time Cooling integration time Seconds Clg Sat Time Cooling saturation time Seconds Htg Prop Band Heating proportional band °F/°C Htg Int Time Heating integration time Seconds Htg Sat Time Heating saturation time Seconds

Modes The Modes folder contains one page showing the current sequencer states and modes. See Table 35. Table 35: MUI Modes Page Contents

Display Name Description Units/Enumeration Airflow Mode Airflow mode Normal = normal

Self RF = fault, self-reset Manual RF = fault, manual reset

Fan Mode Fan mode Auto = auto Off = off Fan Only= fan only Max Speed = maximum speed



Display Name (Cont.) Description Units/Enumeration Occ Mode Occupied mode Occupied = occupied

Unoccupied = unoccupied Bypass = bypass Standby = standby Invalid = invalid

Clg Ctrl State Cooling control state Off = off Max = max Lim Max = limited max Wtr Flush = water flush LoOATPos = low OAT position Instant SD = instant shutdown Hold = hold Main Ctrl = main control Aux Ctrl1 = aux control 1 Aux Ctrl2 = aux control 2 LoOATStrtup = low OAT startup

Htg Ctrl State Heating control state Off = off Max = max Lim Max = limited max Wtr Flush = water flush LoOATPos = low OAT position Instant SD = instant shutdown Hold = hold Main Ctrl = main control Aux Ctrl1 = aux control 1 Aux Ctrl2 = aux control 2 LoOATStrtup = low OAT startup



Display Name (Cont.) Description Units/Enumeration Occ State Occupied state Shutdown = shutdown

Satisfied = satisfied Econ = econ Econ Mech = econ mech Mech = mech PriHeat = primary heat SecHeat = secondary heat DALL Econ = DALL Econ

UnOcc State Unoccupied state Satisfied = satisfied Econ Clg = econ clg Econ Mech = econ mech Mech = mech Pri Heat = primary heat Sec Heat = secondary heat Idle = idle Shutdown = shutdown Disable = disable

Winter Mode Season Summer = summer Winter = winter

Emerg Heat Emergency heating mode Off = off On = on

Clg Allowed Cooling allowed? Yes = allowed No = not allowed

Htg Allowed Heating allowed? Yes = allowed No = not allowed

Unit Enable Status Unit enable status Dis = unit disabled Ena = unit enabled

Unit Mode Unit mode Heat = heat Cool = cool Off = off


Balancer Folder The Balancer folder contains one page of commandable points. See Table 36. Table 36: MUI Balancer Page Contents

Display Name Description Units/Enumeration Fan override state Off = off

On-L-M-H = on Auto = auto (return to control)

Fan Ovrd State

Fan override position % Chilled water valve override state Auto = auto (return to

control) Position = go to desired position Open = go full open Close = go full closed

Chw Ovrd State

Chilled water valve override position

% open

Hot water valve override state Auto = auto (return to control) Position = go to desired position Open = go full open Close = go full closed

Hw Ovrd State

Hot water valve override position % open Face and Bypass Damper override state

Auto = auto (return to control) Position = go to desired position Open = go full open Close = go full closed

FBPD Ovrd State

Face and Bypass Damper override position

% open

Flow Fault Reset Flow fault reset To reset the proof of flow switch shutdown, set this point to Reset and then set it back to Normal.

Normal = normal Reset = reset


Time Folder The Time folder contains one page of points allowing the user to set the time, date, time zone, and units of measure. See Table 37. Table 37: MUI User Interface Time Page Contents

Display Name Description Units/Enumeration Time Time HH:MM:SS Date Date mm/dd/yy Unit of Measure Units of measure DegC = SI

DegF = US Date format dd/mm/yyyy

mm/dd/yyyy yyyy/mm/dd

Date Format

Time zone GMT = Greenwich Mean Time CET = Central Europe Time EET = Eastern Europe Time AST = Atlantic Standard Time EST = Eastern Standard Time CST = Central Standard Time MST = Mountain Standard Time PAST = Pacific Standard Time AKST = Alaska Standard Time AEST = Eastern Standard Time ACST = Central Standard Time New_Zealand = New Zealand East_Brazil = East Brazil West_Brazil = =West Brazil DST_Disabled = disabled


Schedulers Folder The Schedulers folder consists of two pages, providing an interface for users to set the local occupancy schedule.

The On Off Schedulers page provides users the ability to assign the occupied (On) and unoccupied (Off) times for Normal and Holiday days.

The Calendar page provides users the ability to identify a specific date as either Normal or Holiday.

Password Folder The Password folder provides user access management for the MUI. Access to all MUI folders is available to all users; therefore, the Password folder feature is not applicable.

MUI Status LEDs None of the MUI’s LEDs are configured to light.

Accessing a Folder in the MUI To access a folder in the MUI:

1. On the Home Page, press the ESC key. The Main Menu appears with folder names.

Each folder contains one or more pages of information. None of the folders are password-protected.

2. Press the up or down arrow keys to select the desired folder.

3. Press the OK key to view the folder contents.

Note: Information displayed on the MUI can include read-only data points as well as writable configuration settings, setpoints, and parameters.

Changing a Configuration Setting, Setpoint, or Parameter in the MUI To change a configuration setting, setpoint, or parameter:

1. Navigate to the page containing the desired point.

2. Press the Enter key to enter the edit mode.

3. Press the up or down arrow to select the desired point.

4. Press the Enter key again.

5. Press the up or down arrow key to toggle the entry to the desired setting or value.

6. Press the Enter key to accept or the Clear key to reject.


LCD2x4 User Interface The LCD2x4 user interface is an optional hardware accessory consisting of the following:

• 2-line by 4-character LCD

• graphical status icons

• four keys: up, down, clear (C), and OK

The LCD2x4 user interface is available only as an integrated part of the FX06, FX07, and FX14 packaging.

Figure 45: FX07 with Integral LCD2x4 User Interface

LCD2x4 User Interface Capabilities The FCU application template includes a predefined LCD2x4 user interface configuration. The LCD2x4 configuration organizes information into folders and pages which you navigate through using the keypad and display.

You use the LCD2x4 to perform the following functions:

• monitor control points and system status

• adjust setpoints and unit parameters

• initiate overrides

• select the desired display units of measures


LCD2x4 User Interface Navigation Upon powerup, the LCD2x4 displays the Home Page showing system information. See Table 38 for a list of the Home Page contents. Table 38: LCD2x4 User Interface Home Page Contents

Display Name Description Units/Enumeration ZN TEMP Zone temperature °F/°C

ACT CLG SP Actual cooling setpoint °F/°C

ACT HTG SP Actual heating setpoint °F/°C

OA TEMP Outside air temperature °F/°C REM SP ADJ Remote setpoint adjustment °F/°C

W/C ADJ Warmer/cooler adjustment °F/°C

FAN CMD Supply fan command OFF = off ON = on

FAN STATUS Supply fan status OFF = off ON = on

FILTER STATUS Filter switch status CLEA = clean DIRT = dirty

CHW VALVE OUT Chilled water valve output % open HW VALVE OUT Hot water valve output % open

LOW SPEED CMD Low speed fan command % MED SPEED CMD Medium speed fan command %

HIGH SPEED CMD High speed fan command %

CLG CMD Cooling command OFF = off ON = on

HTG CMD Heating command OFF = off ON = on

UNIT MODE Unit mode HEAT = heating COOL = cooling OFF = off

FBPD Output Face and bypass damper output % open Energy Hold Off

Window Switch Status No = No Yes = Yes

Condensate Condensate Sensor Status Normal = Normal Alarm = Alarm

In addition to the Home Page, the LCD2x4 also includes 11 folders of information which you access from the LCD2x4’s Main Menu. See Table 39 for a list of these folders.


Table 39: FCU LCD2x4 Folders Folder User Access

Level Contents

Config Admin FCU application configuration settings NRM Setup All NRM configuration settings FX Setup All LCD2x4 configuration settings Setpoints Admin Setpoints Parameters Admin Miscellaneous setpoints and parameters PID Parameters Admin Proportional bands, integration times, and

saturation times Modes All Sequencer modes and states Balancer Admin Override points Time All Time Scheduler All Schedulers Password All User management

Config Page The Config page is only available to Admin users. The page contains configuration settings made during the Application Wizard session. These settings are read-only (you cannot change the FCU configuration from the LCD2x4). See Table 40. Table 40: LCD2x4 User Interface Config Page Contents

Display Name Description Units/Enumeration SP ADJ TYPE Setpoint adjustment type SETP = absolute setpoint

W/C = warmer/cooler

TWO PIPE COIL Two-pipe heating/cooling unit? NO = no YES = yes

2 PIPE TYPE Type pipe heating/cooling type FACE = face and bypass damper PROP = proportional valve

CLG TYPE Cooling type NONE = No cooling 1STG = 1 stage FBPD = Face and bypass damper PROP = Proportional valve

HTG TYPE Heating type NONE = no cooling 1STG = 1 stage FBPD = face and bypass damper PROP = proportional valve

FAN TYPE Supply fan type 1SPD = single-speed fan 3SPD = three-speed fan

OCC FAN CTRL Occupied fan control type CNST = constant fan CYCL = cycled fan





UNOCC CTRL Unoccupied control enabled? NO = no YES = yes

SHUTDOWN ACTION Valve action when low OAT shutdown occurs

CLS = go to closed position LOAP = go to low OAT position

RESTART TYPE Type of reset required after loss of airflow shutdown occurs

AUTO = automatic reset MANL = manual reset

POWER FAIL RESTART ENA

Power fail restart enabled? NO = no YES = yes

SF PROOF Supply fan proof enabled? NO = no YES = yes

FILTER SWITCH Filter switch enabled? NO = no YES = yes

PBPD Polarity Face and Bypass Damper Polarity DIR = direct REV = reverse

THERMOSTAT TYPE Room sensor type TM = TM-2100 NRM = NRM

ENABLE TEMP OCC Enable/disable temporary occupancy control. When enabled, rotating the adjustment dial during the unoccupied mode initiates a period of temporary occupancy.

NO = disable YES = enable

NRM Setup Page The NRM Setup Page contains adjustable NRM configuration settings (see Table 41). Table 41: LCD2x4 User Interface NRM Config Page Contents

Display Name Description Units/EnumerationNRM TEMP UNITS Units of measured displayed at the

NRM DEGC = °C DEGF = °F

NRM DEFAULT VIEW

The default view of the LCD SETP = show setpoint TEMP =show space temperature

NRM BACKLIGHT TIME

The amount of time the LCD backlight stays lit

Seconds

ENABLE UNOCC BLINK

Enable/disable LCD blinking when in unoccupied mode

NO = no display blink YES = display blink





MAINT ICON ENA Enable/disable the displaying of the maintenance icon (wrench). When enabled, the wrench appears if: • unreliable space temperature • no communication with the

controller

ENA = enable DIS = disable

DEFAULT NRM ABS SP

The setpoint to be used upon recovery from a power cycle

°F/°C

HIGH SETPOINT LIMIT

The maximum amount of setpoint adjustment allowed

°F/°C

LOW SETPOINT LIMIT

The minimum amount of setpoint adjustment allowed

°F/°C

SPACE TEMP OFFSET

Space temperature sensor offset (used to calibrate the space temperature sensor)

°F/°C

FX Setup Page The FX Setup page is only available to Admin users. The page contains configuration settings for the LCD2x4 (see Table 42). Table 42: LCD2x4 User Interface FX Setup Page Contents

Display Name Description Units/EnumerationDISPLAY UNITS Units of measure displayed on

the LCD2x4 DEGF = °F DEGC = °C

LCD CONTRAST Contrast setting for the LCD2x4 LOW = low MED = medium HIGH = high

BACKLIGHT TIME MIN

Backlight time for the LCD2x4 OFF = always off 2 = 2 minutes 10 = 10 minutes 20 = 20 minutes ON = always on

DEFAULT COLOR Default backlight color for the LCD2x4

BLUE = blue RED = red

Setpoints Page The Setpoints page is only available to Admin users. The page contains adjustable setpoints. See Table 43. Table 43: LCD2x4 User Interface Setpoints Page Contents

Display Name Description Units/Enumeration OCC CLG SP Occupied cooling setpoint °F/°C

SB CLG SP Standby cooling setpoint °F/°C Continued on next page . . .




UNOCC CLG SP Unoccupied cooling setpoint °F/°C

OCC HTG SP Occupied heating setpoint °F/°C

SB HTG SP Standby heating setpoint °F/°C

UNOCC HTG SP Unoccupied heating setpoint °F/°C CLG OAT LOCKOUT SP

Outside air cooling lockout °F/°C

HTG OAT LOCKOUT SP

Outside air heating lockout °F/°C

EMERG HTG SP Emergency heating setpoint °F/°C EMERG HTG SP DIFF

Emergency heating setpoint differential

°F/°C

WC ADJUST RANGE Warmer/cooler adjustment range °F/°C

Parameters Page The Parameters folder is only available to Admin users; it contains one page of adjustable miscellaneous setpoints and unit parameters. See Table 44. Table 44: LCD2x4 User Interface Parameters Page Contents

Display Name Description Units/Enumeration PF MAX RESTART TIME

Maximum power fail restart time Seconds

FAN OFF DELAY Fan off delay Seconds AIRFLOW START DELAY

Maximum amount of time allowed for the fan to prove after it has been commanded on

Seconds

AIRFLOW DEBOUNCE DELAY

Amount of time a temporary loss of airflow is ignored before action is taken

Seconds

LOW OAT SP Low outside air temperature setpoint. When the outside air temperature is below this setpoint, the heating or cooling valve is opened to the Low OAT position

°F/°C

CLG LTD MAX POS Cooling limited maximum position % open HTG LTD MAX POS Heating limited max position % open

VALUE LOW OAT POS Valve’s Low OAT position % open

VALUE FLUSH POS Valve’s Flush position % open FAN SPEED DIFF fan speed differential % FAST SEQ THRESHOLD

Enable/disable fast sequence. When enabled, the application switches between Heat, Satisfied, and Cool states faster (does not wait for saturation times to expire).

°F/°C

FAST SEQUENCE Amount of setpoint change needed to switch states during the Fast Sequence mode

DIS = disable ENA = disable

TEMP OCC TIME Temporary occupancy time Minutes


PID Parameters Page The PID Parameters page is available only to Admin users; it contains adjustable PID tuning parameters, such as proportional bands, integration times, and saturation times. See Table 45. Table 45: LCD2x4 User Interface PID Parameters Page Contents

Display Name Description Units/EnumerationCLG PROP BAND Cooling proportional band °F/°C

CLG INT TIME Cooling integration time Seconds

CLG SAT TIME Cooling saturation time Seconds

HTG PROP BAND Heating proportional band °F/°C HTG INT TIME Heating integration time Seconds

HTG SAT TIME Heating saturation time Seconds

Modes The Modes page shows the current sequencer states and modes. See Table 46. Table 46: LCD2x4 User Interface PID Parameters Page Contents

Display Name Description Units/Enumeration AIRFLOW MODE Airflow mode NORM = normal

SRF = fault, self-reset MRF = fault, manual reset

FAN MODE Fan mode AUTO = auto OFF = off FAN = fan only MAX = maximum speed

OCC MODE Occupied mode OCCD = occupied UNOC = unoccupied BYPA = bypass STAN = standby INVA = invalid

CLG MODE Cooling mode OFF = off LMAX = limited max WATR = flush INSD = instant shutdown MAIN = main control SD = shutdown



Display Name (Cont.) Description Units/Enumeration HTG MODE Heating mode OFF = off

LMAX = limited max WATR = flush INSD = instant shutdown MAIN = main control SD = shutdown

OCC STATE Occupied state SD = shutdown SATI = satisfied ECON = econ ECNM = econ mech CLG = mech HTG = primary heat SECH = secondary heat DLLE = DALL Econ

UNOCC STATE Unoccupied state SATI = satisfied ECNC = econ clg ECNM = econ mech CLG = mech HTG = primary heat SECH = secondary heat IDLE = idle SD = shutdown DISA = disable

SEASON Season SUM = summer WIN = winter

EMERG HEAT MODE Emergency heating mode OFF = off ON = on

CLG ALLOWED Cooling allowed? YES = allowed NO = not allowed

HTG ALLOWED Heating allowed? YES = allowed NO = not allowed

UNIT ENABLE STATUS

Unit enable status DIS = unit disabled ENA = unit enabled



Display Name (Cont.) Description Units/Enumeration CLG CONTROL STATE Cooling control state OFF = off

MAX = max LIM = limited max WATR = flush LOAP = low OAT position INSD = instant shutdown HOLD = hold MAIN = main control AUX1 = aux control 1 AUX2 = aux control 2 LOAS = low OAT startup

HTG CONTROL STATE Heating control state OFF = off MAX = max LIM = limited max WATR = flush LOAP = low OAT position INSD = instant shutdown HOLD = hold MAIN = main control AUX1 = aux control 1 AUX2 = aux control 2 LOAS = low OAT startup

Balancer Page The Balancer page is only available to Admin users; it contains overrides useful for air and water balancing, troubleshooting and commissioning. See Table 47. Table 47: LCD2x4 User Interface Balancer Page Contents

Display Name Description Units/EnumerationFAN OVERRIDE STATE

Fan override state OFF = off ON = on AUTO = auto (return to control)

FAN OVRD VALUE Fan override position % Continued on next page . . .


Display Name (Cont.) Description Units/Enumeration CHW OVRD STATE Chilled water valve override state AUTO = auto (return to

control) POS = go to desired position OPEN = go full open CLOS = go full closed

CHW OVRD VALUE Chilled water valve override position

% open

HW VALUE OVRD STATE

Hot water valve override state AUTO = auto (return to control) POS = go to desired position OPEN = go full open CLOS = go full closed

HW VALUE OVRD VALUE

Hot water valve override position % open

FBPD OVRD STATE Face and Bypass Damper override state

AUTO = auto (return to control) POS = go to desired position OPEN = go full open CLOS = go full closed

FBPD OVRD OVRD VALUE

Face and Bypass Damper override position

% open

FLOW FAULT RESET Flow fault reset To reset the proof of flow switch shutdown, set this point to Reset and then set it back to Normal.

NORM = normal RST = reset

Time Page The Time page contains the time, date, time zone, and units of measure. See Table 48. Table 48: LCD2x4 User Interface Time Page Contents

Display Name Description Units/Enumeration HOUR Hour 0-23 hours

MINUTE Minute 0-59 minutes MONTH Month 1-12 month

DAY Day 1-31 days

YEAR Year 2000-2999 year Continued on next page . . .




DAYWEEK Day of the week 0 = Sunday 1 = Monday 2 = Tuesday 3 = Wednesday 4 = Thursday 5 = Friday 6 = Saturday

TIME ZONE Time zone GMT = Greenwich Mean Time CET = Central Europe Time EET = Eastern Europe Time AST = Atlantic Standard Time EST = Eastern Standard Time CST = Central Standard Time MST = Mountain Standard Time PAST = Pacific Standard Time AKST = Alaska Standard Time AEST = Eastern Standard Time ACST = Central Standard Time NEWZ = New Zealand EBRA = East Brazil WBRA = West Brazil DDIS = disabled

Schedulers Page The Schedulers page provides an interface for users to set the local occupancy schedule.

Password Page The Password page provides user access management for the MUI. Access to certain pages is restricted to specific user types. Two default users are defined: All and Admin. Table 49. Table 49: LCD2x4 User Interface User Passwords and Access Rights

User Password Accessible Pages All None - Logon is not required Home Page

Modes Time Password Events



User (Cont.) Password Accessible Pages Admin 3333 Home Page

Config Setpoints Parameters PID Parameters Modes Time Password Balancer NRM Setup FX Setup Schedulers

Events Page No events are configured.

Graphical Status Icons None of the LCD2x4 user interface graphical status icons are configured to light.

Accessing a Page in the LCD2x4 UI To access a page in the LCD2x4 UI:

1. On the Home Page, press the Clear (C) key. The Main Menu appears with page names.

2. Press the up or down arrow keys to select the desired page.

Note: Some pages require Admin logon.

3. Press the OK key to view the page contents. Use the up and down arrows to scroll through the points.

Note: Information displayed on the LCD2x4 UI can include read-only data points as well as writable configuration settings, setpoints, and parameters.

Changing a Configuration Setting, Setpoint, or Parameter in the LCD2x4 UI To change a configuration setting, setpoint, or parameter:

1. Navigate to the page containing the desired point.

2. Use the Up and Down arrows to display the desired point to change.

3. Press the Enter key to enter the edit mode. The point’s setting/value blinks while in the edit mode.


4. Press the up or down arrow to toggle the entry to the desired setting or value.

5. Press the Enter key to accept the change or the Clear (C) key to reject the change.

Supervisor Interface The FCU application template contains predefined mappings between the application points and N2 points, LONWORKS® network variables, and BACnet® objects. After you select the protocol type in the Application Wizard, the corresponding network profile is added to the FCU application file.

The actual network profile depends on which configuration settings were selected in the Application Wizard. The Protocol Documentation and Network Resource Files generated by the Application Wizard provide you with details about the actual network profile. Make sure you select the appropriate options in the Application Wizard Preferences dialog box, or the desired files are not generated.

• If the Generate Protocol Documentation option was selected in the Application Wizard Preferences dialog, then the network documentation is generated at the end of the Application Wizard session.

• If the Generate Network Protocol Files option was selected, then the N2 Print files (*.prn) or LONWORKS network resource files (*.xif, *.typ, *.enu, *.ftp, *.typ) are generated at the end of the Application Wizard session.

Note: BACnet integration does not require resource files.

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Johnson Controls® is a registered trademark of Johnson Controls, Inc. All other marks herein are the marks of their respective owners. © 2009 Johnson Controls, Inc.

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