CSMC 3805 User Guide-0901

THIS USER GUIDE MUST BELEFT WITH THE CSMC

CSMC 3805 User Guide

Invensys is a trademark of Invensys plc and its subsidiaries and affiliates.

Contents Page No.

Key/Symbol Descriptions .................................................... (ii)Keyboard Layout ................................................................ (iii)Liquid Crystal Display Layout ................................................ 1CSMC User Guide ................................................................ 3Getting Started ................................................................... 4,5How to use the Keyboard...................................................... 6How to Enter the Security Code............................................ 6Security Code Numbers (removable page) ........................... 7Function Key Operation ........................................................ 9Sensor Display .................................................................... 10Manual Overrides................................................................ 11Day Extension & Weekend Mode ....................................... 12Time and Date..................................................................... 13Holiday Programmes........................................................... 14Timeschedules .................................................................... 15Fast Run.............................................................................. 16Reviewing & Setting the A and B Key Codes...................... 17

Page No.

General Key Code SectionCompensator Settings Key Code A............................. 18,19General Key Code SectionOptimiser Settings Key Code B.............................. 19,20,21Boiler Sequence Mode Key Codes ..................................... 21Dual Compensator Loop Control Mode Key Codes ............ 22Compensator/Optimiser, Single Loop, HWSTemperature/Time Controlled Output.................................. 22Optimiser Only Mode Key Codes ........................................ 23Timeschedule Settings & Record ........................................ 24Holiday Settings & Record .................................................. 25Basic Wiring Diagram Compensator/Optimiser ................ 26Basic Wiring Diagram Boiler Sequence Control ............... 27Basic Wiring Diagram Dual CompensatorLoop Control ........................................................................ 28Basic Wiring Diagram Optimiser only ............................... 29Technical Data..................................................................... 30Caution ................................................................................ 33

(i)

This page has been designed to be left open when programming the CSMC

(ii)

These symbols will appear on the LCD to indicate if thefunction is on, off or overridden (flashing).

MINUS keyTo program a negative value,press the numeric keys 0 to 9before pressing the MINUS key,followed by the ENTER key.

ENTER keyThe Enter key is used toenter new informationinto memory or to acceptthe setting/reading andmove onto the next step.

Numeric keys 0 to 9These keys have two modes of operation: As function keys, allowing selection of

various day to day actions such as overrides& holidays.

As standard numeric keys for setting actualvalues such as times & temperatures.

Key/Symbol DescriptionsBOOST CSMC is in a Boost condition

TAP CSMC HWS Output is on

DAY CSMC is in Day ExtensionEXTENSION

VALVE CSMC Mixing Valve is openingOPEN (Valve 1 or 2 selected from Code B60)

HOLIDAY CSMC is in a Holiday period

NIGHT CSMC is in a Night Set-back condition

DAY CSMC is in a Day condition

OPTIMUM CSMC is an optimum off conditionOFF

KEY CSMC is unlocked and can be programmed

VALVE CSMC Mixing Valve is closingCLOSE (Valve 1 or 2 selected from Code B60)

BOILER CSMC Boiler Output is on

PUMP CSMC Pump Output is on

EXIT keyThe Exit key is used toend the programmingsequence and return tothe normal display whilstleaving the CSMC in thecurrently selectedsecurity level.

SECURITY keyThe Security key allows any oneof the three security codes to beentered.A and B keyThe A and B keys are used toenter or review key code settings.Key A for the Compensator and Bfor the Optimiser. See pages 25to 32 for a full list of thesekeycodes.

Keyboard Layout

(iii)

Hourly markings used forreviewing timeschedules

Daily markings used forreviewing timeschedules

LCD (see next page for description)

Numeric keys 0 to 9

ENTER key EXIT key MINUS key

Special functions available onthe numeric keys.(Note: These are not keys)

A and B keys

SECURITY key

LCD Layout

Hourly blocks are used to give informationon timeschedule settings, a block appears ifthe hour, or part of the hour, is set to on inthe timeschedule.

Note: The hourly blocks will display certain limit conditions as they occur:L05 Return Water Low LimitF Water Frost Limit (return or flow)L01 Inside Low Limit (frost)H4 Flow Water High LimitA Alarm*0 to 9 Optimiser Status if key code B49

is set to 1 (see DS 2.541B)

Normal display shows thecurrent day of the week

1* Alarms can only be acknowledged from the central computer. If the alarm display is not required set Code B61 to 1. CSMC3805

Statusdisplay

Normal display shows the units of the displayed sensor.i.e. C, F and V (voltage)

Normal display showsthe current time

Normal display shows thevalue of the sensor selectedfor display

2CSMC3805

(This page is intentionally left blank)

CSMC User Guide

This booklet should be left with the controller as ausers guide for settings and operation.

The design and performance of Invensys productsare subject to continual improvement andtherefore liable to change without prior notice.Information in this manual is given for guidanceonly and Invensys does not accept responsibilityfor the selection or installation of its productsunless information has been given by theCompany in writing relating to a specificapplication.

CopyrightThis manual is copyrighted with all rightsreserved. Under the copyright laws, thedocumentation may not be copied, photocopied,reproduced, translated, or reduced to anyelectronic medium or machine readable form, inwhole or in part, without the prior written consentof Invensys.

1993 Invensys plc. All Rights Reserved. Revised September 2001.

Building Systems - UK, Invensys EnergySolutions, Farnham Road, Slough, Berkshire,SL1 4UH, United Kingdom.

3CSMC3805

Getting Started

The CSMC is a Microprocessor Compensator/Optimiser with a full range of advanced features.For ease of use Invensys have designed theCSMC to be as simple as possible to program.Before switching on the CSMC power check thatthe battery is connected and that commissioninghas been completed (see DS 2.541A for details).All Key code settings have a basic programmeas standard, which can be changed by the user ifrequired.

To initially configure the CSMC to control yourplant the following functions must be reviewedand changed if necessary to meet your specificrequirements:

Note: If the time and date (function key 4) is leftunset the CSMC will remain in a suspended stategiving no output. This avoids unwanted outputsoccurring whilst the CSMC is being configured.

Once the CSMC has been configured the timeand date should be set.

Compensator Key codes A00 to A08 (Also A09to A12 if a dual compensator configuration isused) (see pages 22 and 28).

Time, Date and Timeschedule Function keys 4and 6 (see pages 9, 13 and 15).

The CSMC can be configured to control a numberof different types of application as follows:

Compensator/Optimiser, Single Loop, HWS Timeschedule Output only.

Compensator/Optimiser, Single Loop, BoilerSequence Control, No HWS Output.

Compensator/Optimiser, Dual CompensatorLoop Control, No HWS or Boiler Output.

Compensator/Optimiser, Single Loop, HWSTemperature/Time Controlled Output.

Optimiser Only, No Compensation Output, HWS Time Schedule Output.4

CSMC3805

All other settings can be changed to the usersrequirements at a later date, if required. Therecord pages near the back of this User Guideshould be used to record any changes made tosettings for future reference.

To make the CSMC easier to understand the Aand B codes are arranged in five sections. Themain section covers the general key codes, andthe other sections cover each of the otherapplication specific key codes.

The CSMC is self adaptive on the compensationratios and the optimum on/off settings. If selfadaptive functions are not required they may beindividually cancelled by using Key codes A08,B24 and B25 respectively.

Compensation loop 2 is not self-adaptive.

5CSMC3805

How to use the Keyboard

Some functions may be reviewed without the useof a security code but in all cases if a parameter isto be changed one of three security codes mustbe entered.

Press the SECURITY key and the display willshow [ SEC ].

Enter the appropriate 4 figure security codefollowed by the ENTER key. See page 7 for thestandard security codes. If an incorrect code isentered, the display will revert to normal.

If the correct code is entered the display will show:

Low Security [ HELLO ] security KEY symbolcontinuously on.High Security [ HELLO] security KEY symbolflashes.Service Security [ HELLO SEr ] security KEYsymbol flashes.

The CSMC will automatically exit from security ifno keys are pressed for approximately 90seconds. If necessary, pressing the SECURITYkey while the display says [ HELLO ] or [ HELLO SEr ] will immediately exit security.6

CSMC3805

Security Level Allows access to:

Service Security Service, high and low levelsecurity

High Security High and low level security

Low Security Low level security

How to enter the Security Code

7

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CSMC38057

Security Code Numbers

This page contains the default (built-in) securitycodes. These codes are active when the CSMCis first turned on or reset to its default programmeand remain in use unless changed by the user.

KEY CODE SECURITY LEVEL DEFAULT CODE NEW CODE

B28 LOW SECURITY 0000

B29 HIGH SECURITY 1234

B45 SERVICE SECURITY 0280


8CSMC3805

Function Key Operation

Key 1 Sensor Display

Key 2 Manual Overrides

Key 3 Day Extension and Weekend Mode

Key 4 Time and Date

Key 5 Holiday Programme

Key 6 Timeschedules

(Service Security required for the followingfunction):

Key 9 Fast Run

Keys 1 to 6 are used as function keys to gainaccess to the more commonly used day to dayfunctions and these are described in detail in thefollowing pages. Function key 9 can only beaccessed by use of the service security code andwould be used mainly in the commissioningperiod. To use any of these keys enter thecorrect security code and then press theappropriate numeric key between 1 and 9.

To move from one value to another whilst inprogramme mode without updating the presentvalue press the ENTER key. To exit any functionpress the EXIT key.

9CSMC3805

Sensor Display

REVIEW : No SecurityCHANGE : Low Security

This key is used to review all the sensor readingsbetween 1 and 8.Press function key 1, the display shows [ di1 ] press akey between 1 and 8 to select the sensor to be viewed.

The sensor displayed depends on the selected controlscheme.The sensor value is automatically displayed. This maybe repeated as often as required. If a security codehas been used then the normal display will show thelast sensor viewed when you exit this function.

NOTE: [ n C ] is displayed when a sensor is notconnected. If the CSMC reads a value above 150Cthe display will stop when it reaches 150C.

10CSMC3805

SensorNumbers

FUNCTIONStandard Optimiser/Compensator

Dual Boiler Compensator

Dual Compensator Control

Compensator and HWSControl

Optimiser Only

1 DRT Room Sensor DRT Room Sensor DRT Room Sensor DRT Room Sensor DRT Room Sensor2 DOT Outside Sensor DOT Outside Sensor DOT Outside Sensor DOT Outside Sensor DOT Outside Sensor

3 DWT, DST Boiler FlowSensorDWT, DST Boiler FlowSensor

Not used DWT, DST Boiler FlowSensor

DRT Room Sensor(optional)

4 DWT, DST Valve FlowSensorDWT, DST Valve FlowSensor

DWT, DST Valve 1 FlowSensor

DWT, DST Valve FlowSensor


5 DWT, DST Return WaterSensor or RPW (optional)DWT, DST Return WaterSensor or RPW (optional)

RPW (optional) DWT, DST Return WaterSensor or RPW (optional)


6 DOS Solar Sensor(optional)DOS Solar Sensor(optional)

DWT, DST Valve 2 FlowSensor

DWT, DST HWS ControlSensor

Not used

7 DOW Wind Sensor(optional)DOW Wind Sensor(optional)

DOW Wind Sensor(optional)

DOW Wind Sensor(optional)

Not used

8 Not used Not used Not used Not used Average RoomTemperature

Manual Overrides

REVIEW : No SecurityCHANGE : Low SecurityHaving pressed function key 2 the BOOST, DAYand NIGHT status displays will come on, if you donot wish to override any of these then press theENTER key. To override the CSMC into one ofthese modes press key 2 until the required modeis flashing and then press the ENTER key.Having pressed the ENTER key the display willshow the PUMP symbol and either [ A ] or [ 1 ] toshow the pump status. [ A ] = Auto, [ 1 ] = On. Tochange the override press A or 1 followed by theENTER key. To leave the pump as it is just pressthe ENTER key.NOTE: The pump may not be overridden off.The HWS output and actuator outputs may alsobe overridden in the same way as the pump.

HWS Output TAP symbol on[ A ] = Automatic[ 0 ] = Override off[ 1 ] = Override on

Actuator Output VALVE OPEN and CLOSEsymbols on

[ A ] = Automatic[ 0 ] = Valve stops in its present position[ 1 ] = Actuator open[ 2 ] = Actuator close

NOTES:1.The boiler cannot be directly switched on or off.

If the boiler symbol is flashing, this may becaused by a limit condition or another override, forinstance Boost. Check all overrides and limitvalues.

2. If the dual compensator option is selected thenthe valve override will apply to both loops.

3.Overriding the optimiser for compensator loop 1will automatically override loop 2.

4. If the CSMC has no HWS output (i.e. as dualboiler or dual compensator) the HWS overridefunction can still be set but has no effect. 11CSMC3805

REVIEW : No SecurityCHANGE : Low Security

Day Extension works in two ways. If requestedduring an on period the days occupancy will beextended by the time set in key code B00 (keycodes are detailed in a later section). If it isrequested out of an occupancy period the plantwill be brought on for a set amount of time asdetermined by key code B01.

To select the day extension, or timed on period,press function key 3. The display will show either[ dE 0 ] or [ t0 0 ] i.e. the day extensionor timed on period is off, to turn it on press key 1followed by the ENTER key. Key 0 will turn theperiod off.

The display will now show [ 0 6 ].

Saturday and Sunday may be programmed inthree ways; as off, on or on once. If Saturdayor Sunday are programmed off then those dayswill be omitted each week. If they are set to onthe days will obey the standard time programmeset. If they are set to once only they will obeythe programme set at the next weekend, but willthen reset themselves to off for subsequentweekends.

[ 0 6 ] will be displayed, i.e. day 6 is off. Day 6may now be programmed as follows:

[ 0 ] = off[ 1 ] = on i.e. follow the timeschedules set[ 2 ] = on once only then automatically resets

itself to 0

Press the appropriate numeric key followed by theENTER key and Sunday, day 7, will be displayed.Programme Sunday in the same way as Saturday.

12CSMC3805

Day Extension & Weekend Mode

Time and Date

REVIEW : No SecurityCHANGE : High Security

To change the time or date press function key 4.The hours, minutes, day number and weeknumber will be displayed with the hours flashing,this indicates that the hours may be changed ifrequired.

To change the hours enter the correct hour(between 00 and 23) followed by the ENTER key.Now the minutes will flash, these may now bechanged.

The process will repeat for the day number (day 1 = Monday and day 7 = Sunday) and weeknumber (between 01 and 53).

13CSMC3805

Holiday Programmes

REVIEW : Low SecurityCHANGE : High Security

The Optimiser and HWS output may haveseparate holiday programmes. Each of them mayhave up to 99 holiday periods with each periodbeing either a day or a week in length.

To enter a holiday period press function key 5.The display will show [ Ab ] with [ A ] flashing.

Holiday programme [ A ] is for the OptimiserHoliday programme [ b ] is for the HWS. Output or Compensator loop 2.

The flashing [ A ] or [ b ] indicates the programmeto be set. The programme may be toggled in thesequence of [ A ], [ b ] and [ Ab ] by repeatedlypressing key 5. Select which timeschedule theholiday should apply to and press the ENTERkey. Now enter the day number 0 to 7 (0 is thecomplete week) and press the ENTER key.

Now enter the week number (1 to 53) and pressthe ENTER key. Press the EXIT key to leave thefunction or the MINUS key to programme anotherholiday for the same timeschedule(s).

The holiday programmes are automatically sortedinto chronological order.

The ENTER key is used when reviewing holidaysto move from one to the next in chronologicalorder.

To delete a holiday period, review the appropriateholiday program and enter 0 as the day number,00 as the week number and press the ENTER key.

In normal operation when a holiday period isreached the appropriate days/week will flash onthe LCD (Liquid Crystal Display) timeschedule.

14CSMC3805

Timeschedules

REVIEW : No SecurityCHANGE : High Security

The CSMC contains two independenttimeschedules.

Timeschedule [ A ] Optimiser scheduleTimeschedule [ b ] Independent Timeschedule(i.e. HWS or compensator loop 2 if the dualcompensator mode is selected).

Each timeschedule may have two on periods perday. The time should be set in the 24 hour clockformat and will consist of 4 digits.

To set a timeschedule press function key 6, [ ts A] is displayed. Select the timeschedules to bechanged by pressing A or B followed by theENTER key. The display will now show [ Pd X ]where X is the current day number (1 7). Eitheraccept this as the first day to set by pressing theENTER key, or choose another day number to

change (1 7) followed by the ENTER key.

The display will show the timeschedule type, theperiod (P1, P2, P3, P4), the day (1 7 see note 2below for days 6 and 7) and the current switchingtime, as shown below.

Enter the correct time (0000 2359) followed bythe ENTER key and the display will now changeto the next switching time. If a switching time iscorrect the ENTER key alone should be pressed.

NOTE:1. If only one on period is to be used in a day then

P1 is programmed to the on time, P2 and P3 to0000, and P4 to the off time.

2.Saturday and Sunday timeschedules areignored by the CSMC unless they are alsoselected from function key 3 Weekend Mode. 15

CSMC3805

[ A P1 3 0730 ]

OptimiserTime-Schedule

P1 - 1st on timeP2 - 1st off timeP3 - 2nd on timeP4 - 2nd off time

Day (17) SwitchingTime

Fast Run

CHANGE : Service Security

The CSMC clock may be speeded up forcommissioning purposes by using the fast runmode.

Press function key 9 and [ Fr 0 ] is displayedshowing that the fast run mode is off. Enter anumber from 1 to 9, followed by the ENTER key,to turn on fast run (1 being the slowest and 9 thefastest).

To turn off fast run enter 0 followed by the ENTERkey. To monitor the CSMC whilst it is in fast runleave security by pressing the SECURITY key. Ifthe CSMC is left in fast run mode it willautomatically cancel after 15 minutes.

The CSMC will not self learn whilst in fast run andthe time and day are corrected on leaving fast runmode.

16CSMC3805

The A and B key codes are used to set thecompensator and optimiser parameters such astemperatures, limits and ratios.

The A key codes are generally used forcompensation functions and the B keycodes foroptimiser and miscellaneous functions.

To make the CSMC easier to understand, the Aand B codes are arranged in five sections. Themain section covers the general key codes andthe other sections cover each of the otherapplication specific key codes.

Various security levels are required for specifickey codes but access always follows the methodoutlined below.

Enter the appropriate security code followed bythe ENTER key. Press the A or B key followed bythe key code number to be reviewed or changedfollowed by the ENTER key. The current value for

this key code will now be displayed and a newvalue may be set followed by the ENTER key.

As with all programming, pressing the ENTER keywithout amending the value leaves it unchanged.A higher security level than that required willalways work.

The following pages show all the key codes givinga brief description followed by the parameterunits, the setting range, the value initiallyprogrammed into the CSMC and space to notethe actual value set if different from the defaultprogramme. The security level required is alsoshown.

For a full description of the operation of each codesee DS 2.541A. For Application Details seeDS 2.541B.

17CSMC3805

Reviewing and Setting the A and B Key Codes

18CSMC3805

COMPENSATOR SETTINGS KEY CODE A Securiy Code required LOW LEVELKeycode

Description Units Range Basic-progm

SettingRecord

A00 Occupancy Temperature oC 0 to 50 19A01 Compensator (1) Day Origin Temperature oC 0 to 150 20A02 Compensator (1) Outside Temperature Changeover Point oC 10 to +15 5A03 Set Compensator (1) Ratio 1 100/100 000 to 999 300A04 Set Compensator (1) Ratio 2 100/100 000 to 999 300A05 Modified Compensator (1) Ratio 1 (review only) 100/100 000 to 999 300 A06 Modified Compensator (1) Ratio 2 (review only) 100/100 000 to 999 300 A07 Frost Logic 0 = UK, 1 = European 0 or 1 0A08 Compensator (1) Self Adaption 0 = NO, 1 = YES 0 or 1 0

Security Code required HIGH LEVELA20 Flow High Limit, Valve oC 0 to 150 90A21 Low Limit, Boiler oC 0 to 100 50A22 High Limit, Boiler oC 0 to 150 90A23 Low Limit Return oC 0 to 100 50A24 Compensator Boost Set-up C 0 to 150 10A25 Pump Overrun Time Hours:Mins 00:00 to

23:5900:15

A26 Room Influence Ratio 100/100 0 to 999 400A27 Solar Influence Ratio 0 to 999 200A28 Wind Influence Ratio (max 10Vdc input) 0 to 999 000A29 Boiler Control Differential (single boiler operation only) oC 0 to 20 6

GENERAL KEY CODE SECTION

19CSMC3805

COMPENSATOR SETTINGS KEY CODE A Security Code required HIGH LEVELKeycode

Description Units Range BasicProgm

SettingRecord

A30 Final Calculated Valve (1) Flow Temperature (review only) oC A31 Initial Calculated Valve (1) Flow Temperature (review only) oC A33 Design Minimum Outside Temperature oC 35 to +15 0A36 Compensator (1) Night Set-Back oC 0 to 150 30OPTIMISER SETTINGS KEY CODE B Security Code required LOW LEVELB00 Set Optimiser Day Extension Period Hours:

Minutes00:00 to 12:59

02:00

B01 Set Timed on Extension Period Hours:Minutes

00:00 to12:59

02:00

B02 Read or Reset Primary Boiler Hours Run. Reset by entering 0000 Hours 0000 to9999

B03 Read or Reset Degree Days. Reset by entering 0000 Degree Days 0000 to9999

B04 Summer/Winter Changeover. Left Hand Digits for Summer Changeover andRight Hand for Winter

WeekNumbers

00:00 to53:53

00:00

B05 Select Week 53 0 = NO, 1 = YES. In any year if the 31st December is aThursday then it is a 53 week year.

0 or 1 0


20CSMC3805

OPTIMISER SETTINGS KEY CODE B Security Code required HIGH LEVELKeycode


SettingRecord

B10 Optimum Off Minimum Inside Temperature oC 0 to 50 19B11 Inside Low Limit Temperature (Frost) oC 0 to 20 10B12 Inside High Limit Temperature oC 0 to 40 22B13 Outside Low Limit Temperature (Frost) oC 10 to +20 0B14 Outside High Limit Temperature oC 0 to 40 15B15 Water Frost Limit (Flow or Return Sensor) oC 0 to 100 10B16 Water Frost Differential oC 1 to 10 5B17 Degree Day Base Temperature oC 0 to 20 15B18 Outside Reference Temperature oC 10 to +20 10B19 Optimum On Design Pre-heat Min/oC 0 to 100 24B20 Optimum On Advance Pre-heat Factor % 0 to 300 30B21 Design Optimum Off Time Min/oC 0 to 100 36B22 Optimum On Outside Influence % 0 to 100 10B23 Optimum Off Outside Influence % 0 to 100 20B24 Optimum On Self Adaption Rate to cancel set to 00% % 0 to 100 25B25 Optimum Off Self Adaption Rate to cancel set to 00% % 0 to 100 10B26 Calculated Outside Influence for Optimum On (review only) % 100 to 650 B27 Calculated Outside Influence for Optimum Off (review only) % 0 to 100 B28 Low Level Security Code 0000 to

99990000


21CSMC3805

OPTIMISER SETTINGS KEY CODE B Security Code required HIGH LEVELKeycode


SettingRecord

B29 High Level Security Code 0000 to9999

1234

B30 Calculated Actual Design Pre-heat Time (review only) Hours:Minutes B31 Calculated Actual Design Optimum Off Time (review only) Hours:Minutes B32 End of Timed On Period (review only) Hours:Minutes B33 End of Pump Overrun (review only) Hours:Minutes B34 Pre-heat Type 0 = LINEAR, 1 = LOGARITHMIC 0 or 1 0B35 Boiler Failure Alarm Delay Minutes 0 to 59 30B36 Boiler Failure Alarm Low Limit Temperature oC 50 to 80 60B37 Boiler High Limit Offset Temperature oC 0 to 50 20B38 Valve Flow Temperature Failure Delay Alarm Minutes 0 to 59 30B39 Valve Flow Temperature Alarm Differential oC 10 to 80 20

BOILER SEQUENCE CONTROL, NO HWS

COMPENSATOR SETTINGS KEY CODE A Security Code required HIGH LEVEL A34 Primary Boiler Control Differential C 0 to 40 20A35 Secondary Boiler Control Differential C 0 to 40 20


22CSMC3805

COMPENSATOR SETTINGS KEY CODE A Security Code required LOW LEVELKeycode


SettingRecord

A09 Compensator (2) Day Origin Temperature C 0 to 150 20A10 Compensator (2) Outside Temperature Changeover Point C 10 to 15 5A11 Set Compensator (2) Ratio 1 100/100 000 to 999 300A12 Set Compensator (2) Ratio 2 100/100 000 to 999 300

Security Code required HIGH LEVELA32 Final Calculated Valve (2) Flow Temperature (review only) C A37 Compensator (2) Night Set-Back C 0 to 150 30

COMPENSATOR/OPTIMISER, SINGLE LOOP, HWS TEMPERATURE TIME/CONTROLLED OUTPUTThe set value for Hot Water Services is normally 60oC (with a differential of 3oC). If required, these values may be changed, see DS 2.541A for details.

DUAL COMPENSATOR LOOP CONTROL, NO HWS

23CSMC3805

A00 Occupancy TemperatureA07 Frost LogicA25 Pump Overrun Time

B00 Set Optimiser Day Extension PeriodB01 Set Timed On Extension PeriodB04 Summer/Winter ChangeoverB05 Select Week 53B10 Optimum off Minimum Inside TemperatureB11 Inside Low Limit Temperature (Frost)B12 Inside High Limit TemperatureB13 Outside Low Limit Temperature (Frost)B14 Outside High Limit TemperatureB17 Degree Day Base TemperatureB18 Outside Reference TemperatureB19 Optimum On Design Pre-heatB20 Optimum On Advance Pre-heat FactorB21 Design Optimum Off TimeB22 Optimum On Outside InfluenceB23 Optimum Off Outside InfluenceB24 Optimum On Self Adaption RateB25 Optimum Off Self Adaption RateB34 Pre-heat Type

OPTIMISER ONLY OPERATIONListed below are the codes that affect the CSMC when it is in optimiser only mode. Descriptions are not given as they are found in the general keycode section.

24CSMC3805

1MON

2TUE

3WED

4THUR

5FRI

6SAT*

7SUN*

OPTIMISERTIMESCHEDULE

[ A ]

P11st ON

07:30 07:30 07:30 07:30 07:30 00:00 00:00

P21st OFF

00:00 00:00 00:00 00:00 00:00 00:00 00:00

P32nd ON

00:00 00:00 00:00 00:00 00:00 00:00 00:00

P42nd OFF

17:00 17:00 17:00 17:00 17:00 00:00 00:00

INDEPENDENT(i.e. HWS ORCOMPENSATORLOOP 2) TIMESCHEDULE

[ b ]

P11st ON

07:30 07:30 07:30 07:30 07:30 00:00 00:00

P21st OFF

00:00 00:00 00:00 00:00 00:00 00:00 00:00

P32nd ON

00:00 00:00 00:00 00:00 00:00 00:00 00:00

P42nd OFF

17:00 17:00 17:00 17:00 17:00 00:00 00:00

TIME SCHEDULE SETTINGS & RECORD Security Code required HIGH LEVEL

* Saturday and Sunday timeschedules are ignored by the CSMC unless they are also selected from function key 3 Weekend Mode.

25CSMC3805

OPTIMISERHOLIDAYSCHEDULE

[ A ]

INDEPENDENTTIMESWITCH (i.e. HWS,COMPENSATORLOOP 2) HOLIDAYSCHEDULE

[ b ]

HOLIDAY SETTINGS & RECORD Security Code required HIGH LEVEL

To enable this table to be re-used for consecutive years, it is advisable to write the dates in pencil.

Fig.1

26CSMC3805

Note: ARM 2605,6,7and ARM 2656,7 arenot compatible.

Compensator/Optimiser

Boiler

Pump

HWS

RemoteNightSet-back

Remote Day Extension

Boiler Flow (only required if theboiler is directly compensated)

Valve Flow (only required if the valve isdirectly compensated)

Return Water or RPW RemoteSetting Potentiometer (optional)

Room Influence

Outside Temperature

Solar Influence (B53 = 0) (optional) or DWT, DSTHWS Control Sensor (B53 = 3)

(2701 only)Wind Influence(optional)

RS 422/485Serial Link

Transformer Terminals(on CSMC base)

Input wiring screened. Connectscreens separately to a single earthpoint at the controller only.

Supply

(Controlled ifB53 = 3)

Check link is fitted

Basic Wiring Diagram

Fig.2

27CSMC3805


Boiler Sequence Control

Boiler 1

Boiler 2

Pump

RemoteNightSet-back


Boiler Flow Sensor

Valve Flow (only required if the valve isdirectly compensated)

Return Water or RPW RemoteSetting Potentiometer(optional)

Room Influence

Outside Temperature

Solar Influence (optional)

(2701 only)Wind Influence(optional)





Supply


Fig.3

28CSMC3805

Pump

RemoteNightSet-back


Valve Loop 1 Flow Sensor

(optional)

Room Influence

Outside Temperature

Valve Loop 2 Flow Sensor(2701 only)Wind Influence(optional)





Supply

Valve Loop 1

Valve Loop 2


Dual Compensator LoopControl


Optimiser only

Supply

Fig.4

29CSMC3805

Room TemperatureInfluence (optional)

Outside Temperature

* Upto four room sensors may be connected.The CSMC will use the average value (the lowest value will be used for frost).



Boiler

Pump

HWS

RemoteNightSet-back

RemoteDayExtension

Boost

Normal

Common

BoostRelay


Room Temperature Influence



Input wiring screened. Connect screensseparately to a single earth point at thecontroller only.


Technical Data

Type: CSMC 3805

Power Supply:240Vac 10%, 47 to 63Hz

or 220Vac 10%, 47 to 63Hz voltage selectableby transformer terminals used

Consumption:15VA excluding actuator power.(3.5VA 24V supply available for actuator ifrequired).

Fuses:630mA (20mm) mounted on the PCB500mA (20mm) for the 24V actuator output

mounted on the base to the right of transformer

Power Failure Reserve:Lithium Chloride battery holds memory and time.Life of 3 years under normal conditions.

Ambient Temperature Limits:Operating: 0 to 40CStorage/Transit: 20 to +55C

Max. Ambient Humidity:Operating/Storage: 95%rh (non condensing)

Housing:Moulded polycarbonate plastic case. FireResistant to UL94 V-0. The main section plugsdirectly into the rear section that houses thecustomer terminals.

Mounting:Panel mounting, wall mounting or DIN railmounting.

Conduit Entries:Six 21mm diameter conduit entries, three in thetop and three in the bottom of the base plate.

CommunicationsEIA RS 422/485 half duplex (Invensys protocol refer to Marketing Department for information).

30CSMC3805

31CSMC3805


32CSMC3805


CAUTION

This device has a mains voltage supply. Local wiring regulations and usual safety precautions must be observed.Ensure good earthing.

Do not mix phases on any of the controller inputs or outputs. Before opening the controller to alter the switch settings, replace fuses or battery, first ensure ALL mains supplies

to and from the controller are correctly isolated as live terminals are exposed. All relay outputs including the actuator output must use a common voltage i.e. 220/240Vac or 24Vac. Do not mix

voltages. This is required to prevent the possibility of flashover from the 220/240Vac to the 24Vac. Do not switch on power supply until commissioning procedures have been carried out see page 1, DS 2.541A. Observe wiring precautions on DS 2.541A. This product contains a Lithium Chloride battery which is completely safe whilst in normal operation. Batteries

must be disposed of in an authorised landfill site. Do not exceed the maximum ambient temperature see page 30. Interference with parts under sealed covers invalidates guarantee. Design and performance of Invensys equipment are subject to continual improvement and therefore liable to alteration

without notice.

Information is given for guidance only and Invensys do not accept responsibility for the selection and installation of itsproducts unless information has been given to the Company in writing relating to a specific application.

A periodic system and tuning check of the control system is recommended. Please contact your local Invensys ServiceOffice for details.

33CSMC3805

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Building Systems - UK,Invensys Energy Solutions,Farnham Road,Slough,Berkshire, SL1 4UH,United Kingdom.

Telephone: +44 (0) 1753 611000Facsimile: +44 (0) 1753 611001Web site www.ies.invensys.com

CSMC 3805 User Guide-0901

Documents