R-410A - MODELS: NC300, 2-Pipe ND360

R-410A

1062414-YIM-B-0517

MODELS: NC300, 2-PipeND360 - 600, 4-Pipe

25 - 50 Ton, 60 Hertz

TABLE OF CONTENTSGeneral . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Safety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Agency Approvals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Unit Application Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3Physical Data Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Unit Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Location. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5Air Discharge Conversion . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Unit Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8Refrigerant Mains . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12Expansion Valve Bulb Installation . . . . . . . . . . . . . . . . . . . 14Duct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16Electrical Connections Air Handlers with Contactor . . . . . 17ND600 Bearing Alignment: . . . . . . . . . . . . . . . . . . . . . . . . 19Air System Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Twin Belt Drive Adjustment . . . . . . . . . . . . . . . . . . . . . . . . 21

Airflow Performance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35Typical Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36Start-Up Sheet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

LIST OF TABLES1 Unit Application Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32 Physical Data Indoor Unit . . . . . . . . . . . . . . . . . . . . . . . . 43 Unit Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . 114 Corner Weights & Center of Gravity NC/ND Units . . . . . 115 Accessory Operating Weight Distribution (Lbs) . . . . . . . 126 Electrical Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 167 Overload Relay Kit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 178 Overload Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

9 Standard (Non VFD) & Intellispeed (ISP) Low Voltage Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

10 Unit Blower Motor Data . . . . . . . . . . . . . . . . . . . . . . . . . 1811 Unit Drive Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2112 Fan Performance Data - 25 Ton . . . . . . . . . . . . . . . . . . 2213 Fan Performance Data - 30 Ton . . . . . . . . . . . . . . . . . . 2214 Fan Performance Data - 40 Ton . . . . . . . . . . . . . . . . . . 2215 Fan Performance Data - 50 Ton . . . . . . . . . . . . . . . . . . 2316 Unit Connection Sizes . . . . . . . . . . . . . . . . . . . . . . . . . . 35

LIST OF FIGURES1 NC300 and ND360/480 Vertical Airflow Arrangements . . 62 NC300 and ND360/480 Horizontal Airflow Arrangements 63 ND600 & M1CZ600 Airflow Arrangements . . . . . . . . . . . 74 NC300/ND480/ND360 Weight Distribution With

Suspension Application . . . . . . . . . . . . . . . . . . . . . . . . . . 85 NC300/ND360/ND480 Details For Securing Suspension

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96 ND600 & M1CZ600 Weight Distribution With Suspension

Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97 ND600 & M1CZ600 Details For Securing Suspension

Channels . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 Recommended Drain Piping . . . . . . . . . . . . . . . . . . . . . 129 Suggested Method For Connecting Ductwork . . . . . . . . 15

10 NC300/ND360/ND480 Motor Arrangements As Seen In Figures 1 and 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19

11 ND600 Factory Motor Mounting Position . . . . . . . . . . . . 2012 ND600 Center Bearing . . . . . . . . . . . . . . . . . . . . . . . . . . 2013 ND600 Motor Mount Plate . . . . . . . . . . . . . . . . . . . . . . . 2014 Double Groove Pulley . . . . . . . . . . . . . . . . . . . . . . . . . . 2115 Hole Locations For Reading Coil Pressure Drop . . . . . . 2316 NC300 - Pressure Drop Vs. Cfm Across Dry Indoor Coil 2417 ND360 - Pressure Drop Vs. Cfm Across Dry Indoor Coil 2418 ND600 & M1CZ600 - Pressure Drop Vs. Cfm Across Dry

Indoor Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

19 ND480 - Pressure Drop Vs. Cfm Across Dry Indoor Coil 2520 NC300 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 2621 NC300 Unit Dimensions (Continued) . . . . . . . . . . . . . . . 2722 ND360 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 2823 ND360 Unit Dimensions (Continued) . . . . . . . . . . . . . . . 2924 ND480 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 3025 ND480 Unit Dimensions (Continued) . . . . . . . . . . . . . . . 3126 ND600 Unit Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . 3227 M1CZ600 Evaporator Section Dimensions . . . . . . . . . . 3328 ND600 Air Handler & M1CZ600 Evaporator Coil

Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3429 Typical NC300 Indoor Unit Wiring Diagram . . . . . . . . . . 3630 Typical ND360, 480 & 600 Indoor Unit Wiring Diagram

(Contactor) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3731 Typical Field Wiring Diagram - NC300 Evaporator Unit with

YC300 Condenser Unit . . . . . . . . . . . . . . . . . . . . . . . . . 3832 Typical NC300 Liquid Line Solenoid Wiring . . . . . . . . . . 3833 Typical Field Wiring Diagram ND360/480 Evaporator Units,

ND600 Air Handler and M1CZ600A Evaporator Coil when Matched with YD360/480/600 Condenser . . . . . . . . . . . 39

34 Typical ND360/480 & M1CZ600A Liquid Line Solenoid 3935 Typical Liquid Line Solenoid Wiring . . . . . . . . . . . . . . . . 40

1062414-YIM-B-0517

2 Johnson Controls Unitary Products

General

The NC/ND Series evaporator units are designed to match with YC/YD Series condensing units. When matched, these units meet ASHRE 90.1 standards.

NC300, ND360 and ND480 units consist of an evaporator coil section and a blower section that are factory assembled and shipped as shown in Figures 20 thru 25. These sections may be rearranged in the field for other air discharge patterns as shown in Figures 1 and 2.

ND600 units consist of a blower section only and must be matched with an M1CZ600 evaporator coil as shown in Figures 27 thru 28. These units are shipped separately and must be field assembled as shown in Figure 28. These sections may be rearranged for other air discharge patterns as shown in Figure 3.

The NC/ND evaporator coils have 24 volt normally closed solenoid valves, that when matched with the YC/YD condensing units Smart Equipment™ controls provide capacity staging and pump out for higher efficiencies and product reliability.

The NC300 product can be field equipped with the IntelliSpeed discrete fan control (Multi-Speed) VFD option. Please refer to price pages, VFD kit installation instructions for additional details

Safety Considerations

Installer should pay particular attention to the words: NOTE, CAUTION, and WARNING. Notes are intended to clarify or make the installation easier. Cautions are given to prevent equipment damage. Warnings are given to alert installer that personal injury and/or equipment damage may result if installation procedure is not handled properly.

Reference

This instruction covers the installation and operation of evaporator blower units. For information on the operation of matching condensing units, refer to Installation Manual - 1062414 for cooling units.

Additional information on the design, installation, operation and service of this equipment is available in the following Technical Guides Model No. YC300/NC300 Technical Guide-505428, Model No.YD360 thru 600 Technical Guide-628770 and Model No. ND360 thru 600 Technical Guide-628767.

Renewal Parts

Contact your local Source 1 parts distribution center for authorized replacement parts.

Agency Approvals

Design certified by CSA as follows:

1. For use as a cooling coil.

2. For indoor installation only.

Inspection

As soon as a unit is received, it should be inspected for possible damage during transit. If damage is evident, the extent of the damage should be noted on the carrier’s freight bill. A separate request for inspection by the carrier’s agent should be made in writing.Improper installation may create a condition where the

operation of the product could cause personal injury or property damage.

Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual for assistance or for additional information, consult a qualified contractor, installer or service agency.

This system uses R-410A Refrigerant which operates at higher pressures than R-22. No other refrigerant may be used in this system. Gage sets, hoses, refrigerant containers and recovery systems must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer. Failure to use R-410A compatible servicing equipment may result in property damage or injury.

This product must be installed in strict compliance with the enclosed installation instructions and any applicable local, state and national codes including, but not limited to, building, electrical, and mechanical codes.

Wear safety glasses and gloves when handling refrigerants. Failure to follow this warning can cause serious personal injury.

1062414-YIM-B-0517

Johnson Controls Unitary Products 3

Nomenclature

Unit Application Data

Table 1: Unit Application Data

Model Power Supply VoltageVoltage Variation Supply Air Range CFM

Entering Air Temperature Degrees °FCoolingDB/WB

Heating DB1

1. Heating Min/Max temperatures apply to steam and hot water coils. NOTE: Do not apply steam to hot water coils.

Min. Max. Min. Max. Min. Max. Min. Max.

NC300208/230-3-60 187 253 8,000 12,000 65/57 95/72 40 77

460-3-60 414 506 8,000 12,000 65/57 95/72 40 77575-3-60 540 630 8,000 12,000 65/57 95/72 40 77

ND360208/230-3-60 187 253 10,000 14,000 65/57 95/72 40 77

460-3-60 414 506 10,000 14,000 65/57 95/72 40 77575-3-60 540 630 10,000 14,000 65/57 95/72 40 77

ND480208/230-3-60 187 253 12,800 19,200 65/57 95/72 40 77

460-3-60 414 506 12,800 19,200 65/57 95/72 40 77575-3-60 540 630 12,800 19,200 65/57 95/72 40 77

ND600208/230-3-60 187 253 16,000 24,000 65/57 95/72 40 77

460-3-60 414 506 16,000 24,000 65/57 95/72 40 77575-3-60 540 630 16,000 24,000 65/57 95/72 40 77

Product CategoryN = Split System, Air Handler, AC R-410A

Product IdentifierC = Standard Efficiency, 2-Pipe (25T)D = Standard Efficiency, 4-Pipe (30-50T)

Nominal Cooling Capacity - MBH300 = 25 Ton1

360 = 30 Ton480 = 40 Ton600 = 50 Ton

C00 = Cooling Only

5 = 575-3-606 = 208/230/460-3-60

Configured Split Air Handler Model Number Nomenclature

Product Generation1 = First Generation

Voltage

Heat Type & Nominal Heat Capacity

N C 300 C00 N 6 A AA 1 AProduct Style

A = Style A

Installation OptionsA = None

Product Options1

AA = No Options InstalledEJ = ElectroFin Evap Coil (25 Ton Only)TJ = Technicoat Evap Coil (See Note 1.)

1. ND600C00ANAAA1 airhandler does not include evaporator coil. Customer must order M1CZ600A Standard Coil or M1CZ600T Technicoat Coil.

2. Motors, drives, overloads are not shipped with 25-50 ton AH units.

N = None (Motor, Motor Dr. & Motor Overload Kits Req.)Airflow2

1. ND300 Not Offered.

1062414-YIM-B-0517


Physical Data Indoor Unit

Table 2: Physical Data Indoor Unit

ComponentModels

NC3001 2 ND360 ND480 ND6003

Nominal Tonnage 25 30 40 50

DIMENSIONS (inches)

Length 100.1 100.1 103.1 105.1

Width 38.1 38.1 45.4 53.7

Height 74.6 74.6 89.4 99.0

WEIGHTS4 (lb)

Unit Shipping 1067 1122 1246 1684

Unit Operating With5 hp Motor and Drive 1130 1184 --- ---

7.5 hp Motor and Drive 1157 1208 1348 ---

10 hp Motor and Drive --- 1224 1364 1742

15 hp Motor and Drive --- --- --- 1859

INDOOR BLOWER

Diameter x Width 18 X 18 18 X 18 18 X 18 20 x 18

Qty. 2 2 2 2

INDOOR COIL

Face area (Sq. Ft.) 25.8 25.8 33.3 41.3

Rows 4 4 4 4

Fins per inch 16 16 16 16

Tube diameter 3/8 3/8 3/8 3/8

Circuitry Type Interlaced Interlaced Interlaced Interlaced

Refrigerant Control TEV TEV TEV TEV

SYSTEM DATA

No. Refrigeration Circuits 1 2 2 2

Suction Line OD (in.) 2 1/8 1 1/8 1 3/8 2 1/8

Liquid Line OD (in.) 7/8 7/8 7/8 7/8

FILTERS

Size and Quantity Per Model (In.)

16 x 20 x 2 --- --- 6 ---

20 x 20 x 2 --- --- 3 ---

20 x 22 x 2 --- --- --- ---

16 x 25 x 2 --- --- --- 6

20 x 25 x 2 10 10 6 3

25 x 25 x 2 --- --- --- 6

Face area (Sq. Ft.) 34.7 34.7 42.6 53.1

ACCESSORY

HOT WATER COIL DATA

Face area (Sq. Ft.) 21.2 21.2 27.2 27.2

Rows 2 2 2 2

Fins per inch 12 12 12 8

Tube diameter (Copper) OD (In.) 1/2 1/2 1/2 1/2

Connections (Supply and Return) OD (In.) 1 3/8 1 3/8 1 5/8 1 5/8

Weight (lb) 150 150 190 190

STEAM COIL DATA

Face area (Sq. Ft.) 18.2 18.2 --- ---

Rows 1 1 --- ---

Fins per inch 8 8 --- ---

Tube diameter (Copper) (In.) 1 1 --- ---

Connection, (NPTE) (In.)Inlet 2 2 --- ---

Outlet 1-1/2 1-1/2 --- ---

Weight (lb) 160 160 --- ---

1. Motors, Drive and Overload Kits must be ordered separately for the NC300. The Motor Drive and Overload Kits are to be field installed.

2. IntelliSpeed discrete fan control option for NC300 is field installed only. Please refer to price pages or UST to select proper motor, drive, and IntelliSpeed VFD kit.

3. ND600 and M1CZ600A Combined4. Motor, Motor Drive and Motor Overload Kits must be ordered separately, The Motor,

Motor Drive and Overload Kits are to be field installed.

1062414-YIM-B-0517


Unit Installation

Location

The evaporator blowers are not designed for outdoor installation. They must be located inside the building structure, either inside or outside the conditioned space where they are protected from rain and other such moisture.

The unit should be located as close to the condensing unit as practical and positioned to minimize bends in the refrigerant piping.

Units being installed vertically or horizontally can be set directly on a floor or platform, or supported by metal or wooden beams.

Units being installed horizontally can be suspended from above as shown in Figures 5 and 6.

Rigging

Care must be taken when moving the unit. Do not remove any packaging until the unit is near the place of installation. SPREADER BARS SHOULD BE USED BETWEEN THE SLINGS TO PREVENT CRUSHING THE UNIT FRAME OR PANELS. When preparing to move the unit, always determine the center of gravity of the unit in order to equally distribute the weight. Rig the unit by attaching chain or cable slings around the bottom skid. A lift truck may be used to raise a unit to a suspended location. Refer to Table 2 for the total unit operating weight.

Clearances

A 25-inch clearance is required on the end with the piping connections and the supply air blower motor to properly service and maintain the unit and to replace the filters.

Some clearance will also be required for the duct and power wire connections. A clearance equal to the unit width is required

on one end of the unit if the blower shaft or evaporator coil is to be replaced without moving the unit.

Air Discharge Conversion

NC300/ND360/ND480 Air Discharge

These units are shipped for upflow operation, but may be converted for any of the illustrated air discharge patterns shown in Figures 1 and 2.

Convert as follows:

1. Remove the (blower section) panels.

2. Remove the Phillips machine screws located inside casing corner angles that hold the evaporator and blower sections together.

3. Rotate the blower section for the desired air discharge orientation.

NOTE: Before proceeding to step 4, see the section on the blower motor mounting locations and mount the blower motor in the desired position.

4. If accessory heating coils are used, mount heating coil between evaporator and blower sections. Screw fastening locations are the same for all sections and heating accessories. If heating coils are not used, fasten evaporator section to blower section with machine screws removed in step 2.

5. See duct and drain connections.

6. Replace panels.

1062414-YIM-B-0517


Figure 1: NC300 and ND360/480 Vertical Airflow Arrangements

NOTE: *If required, some air can be returned through the bottom of the evaporator section

Figure 2: NC300 and ND360/480 Horizontal Airflow Arrangements

AIRA

IR BLOWER

1

EVAPORATORCOIL

AIR

AIR

2

AIR

AIR

AIR

4

AIR

AIR

5

AIR

AIR

6

3

AIR

AIR

AIR

AIR

AIR

AIR

AIR

AIR

AIR

AIR

AIR

AIR

7 8 9

11 1210

1062414-YIM-B-0517


ND600 Air Discharge

The ND600 blower and M1CZ600 evaporator sections are shipped separately and must be joined together in the field. The blower section can be mounted either above the evaporator for a vertical positioning or beside the coil for horizontal positioning. Both vertical and horizontal positions can be arranged for upward, downward, or horizontal air discharge. The evaporator and blower sections may be assembled together as shown in Figure 3. All arrangements are possible by rearranging the panels as shown.

When arranged vertically, the ND600 can set directly on any floor or platform that is capable of supporting its weight.

When arranged horizontally, the evaporator section can be set directly on the floor, but a 9" support is required under the blower section for stability. The support should extend the full width of the blower section and be located under the edge away from the evaporator section.

NOTE: Ductwork should never be used to support the blower section. Refer to duct connection for more information.

.

Figure 3: ND600 & M1CZ600 Airflow Arrangements

1 2 3

4 5

6 7

VERTICAL AIRFLOW ARRANGEMENTS

HORIZONTAL AIRFLOW ARRANGEMENTS

1062414-YIM-B-0517


Unit Mounting

The NC/ND Series evaporator units may be suspended from joists with isolation type hangers or hooks. Suspension accessories 1HH0403 (NC300 and ND360), 1HH0404 (ND480) and 1HH0405 (ND600 Air Handler with M1CZ600 Evaporator Section) may be ordered separately. All Suspension accessories include three suspension channels and hardware. The channels extend across the evaporator section, the heating

section (if included) and the blower section. Each channel is to be bolted to both sections as shown in Figures 4 thru 6. Refer to Table 3 for mounting details and Tables 4 and 5 for unit weight distribution.

AX

3

1-1/2

EVAP. COILSECTION

BLOWERSECTION

U3 OU HEATING COIL 2

SUSPENSIONANGLES 1

BLOWERSECTION

EVAP.COILSECTION

CX

1

2

3

3

4

4

VERTICAL UNIT SUPPORTED FROM BELOW

F

A

B

E

D

B

A

E

AX BX

BX

BXBX

HORIZONTALUNIT SUSPENDEDFROM ABOVE

The same channels can be used in either position. When used to support a vertical unit, these channels should be cut to match thebottom dimension of the evaporator section.

The suspension channels have two sets of mounting holes to accommodate horizontal units with or without a heating coil. Ona horizontal unit without a heating coil, the suspension channels will extend 3” beyond both ends of the unit.

The same channels can be used to support a horizontal, floor-mounted unit from below.

After these bottom channels are cut per Note 1, a new hole will haveto be drilled at the cut end if the unit is to be mounted on isolators.

C

D

C

F

Figure 4: NC300/ND480/ND360 Weight Distribution With Suspension Application

1062414-YIM-B-0517


Figure 5: NC300/ND360/ND480 Details For Securing Suspension Channels

Figure 6: ND600 & M1CZ600 Weight Distribution With Suspension Application

The following illustration shows how the channelsshould be secured to the unit using the hardwareprovided with the suspension accessory kit.

NOTE:

(2) 9/16 HOLES FOR 1/2HANGER RODS

SUSPENSIONCHANNEL

5/16 NUT,LOCK WASHER,FLAT WASHER

UNIT PANEL

5/16 BOLT,FLAT WASHER

35/16 NUT,FLAT WASHER

3/8 NUT (USEDAS SPACER)

SIDE PANEL

UNIT ANGLE

BLOWER SECTION

HEATING COIL (ACCESSORY)

EVAPORATOR COIL SECTION

AIRIN

SUSPENSIONCHANNELS

E

F

2A

12

1 21

2

D

C

B

AXBX

BX

1062414-YIM-B-0517


ND600 Mounting

When arranged horizontally (Figure 6), the ND600 air handler and M1CZ600 evaporator coil can be suspended from joists with hanger rods using a suspension accessory.

The suspension channels require no drilling or cutting. Each channel has enough holes in its bottom flange for:

1. Four bolted connections to the evaporator coil section. (Only two are used on the outside supports)

2. One bolted connection to the heating coil section.

3. Four bolted connections to the blower section. (Only two are used on the outside supports)

See Figure 7 details for securing suspension channels.

When the heating section is not included, each channel will extend 3" beyond the front and the rear of the unit. Bolt holes in the bottom flange of each channel will still align with the holes provided in the top framework of the evaporator section and the blower section.

For both outside channels and for the Point 1 locations on the center channel, the bolted connections are to be made where the top sheet metal panels are attached to the unit framework. The ¼” screws and cage nuts must be removed and may be discarded. For the Point 2 locations on the center channel, the bolted connections are to be made through the knockouts in the top sheet metal panels. 5/16” cage nuts are provided in the unit framework under these knockout locations. Note that these cage nuts are part of the basic unit. They are not supplied with the suspension accessory.

.

CENTER CHANNEL (Location “1” Figure 3)

CENTER CHANNEL (Location “2” Figure 3)

5/16-18" HEX NUTLOCK WASHER

9/16" FLAT WASHER

TOP PANEL9/16" FLAT WASHERMACHINE SCREW (5/16-18 X 1-3/4 LG)OUTER FRAME OF UNIT SECTION(1-3/4" X 1-3/4")

OUTSIDE CHANNEL

SUSPENSION CHANNEL5/16-18" HEX NUT

SPACER (3/8" LONG)

SIDE PANEL

SUSPENSION CHANNEL

5/16-18" HEX NUT

TOP PANEL

CENTER FRAMEOF UNIT SECTIONS(2 1/8” X 3/8”)

MACHINE SCREW (5/16-18 X 1-3/4 LG)

9/16" HOLE FOR 1/2" HANGER ROD(2 PER CHANNEL)

5/16-18" HEX NUTLOCK WASHER9/16" FLAT WASHER

TOP PANEL

9/16" FLAT WASHER

9/16" HOLE FOR 1/2" HANGER ROD(2 PER CHANNEL)MACHINE SCREW (5/16-18 X 1-3/4 LG)

LOCK WASHER

9/16" FLAT WASHER

TOP PANEL

SUSPENSION CHANNEL

9/16" FLAT WASHER

TOP PANEL

CENTER FRAMEOF UNIT SECTIONS(2 1/8” X 3/8”)

5/16-18" CAGE NUT

SPACER (1/2” LONG)

SPACER (3/8” LONG)

9/16" HOLE FOR 1/2" HANGER ROD(2 PER CHANEL)

Figure 7: ND600 & M1CZ600 Details For Securing Suspension Channels

UNITDIMENSIONS, INCHES

AX BX CX

NC300 69-1/4 49-1/16 26-5/8

ND360 69-1/4 49-1/16 26-5/8

ND480 84 50-9/16 34

ND600 87 51-1/2 ~

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Table 3: Unit Mounting Dimensions

Table 4: Corner Weights & Center of Gravity NC/ND Units

Model Drive HP

Evaporator Section

Blower Section

Drive Section

Weight (lbs.)Center of Gravity

4 Point Load Location (lbs.) 6 Point Load Location (lbs.)

CabinetWt (lb)

CabinetWt (lb)

CabinetWt (lb)

Shipping

Operating

CG X CG Y A B C D A B C D E F

Vertical Airflow

NC3005 539 463 111 1067 1130 19.0 45.5 296 321 267 247 204 220 194 172 159 180

7.5 539 463 138 1067 1157 19.3 45.1 301 335 274 246 206 229 202 179 161 181

ND3605.0 567 490 110 1122 1184 20.1 44.3 297 363 288 236 200 244 215 191 157 1767.5 567 490 134 1122 1208 20.3 44.0 301 376 295 236 202 252 222 197 158 17810 567 490 150 1122 1224 20.5 43.8 304 385 299 236 203 257 226 201 159 179

ND4807.5 654 527 141 1246 1348 24.6 45.1 334 424 330 260 223 283 249 221 174 19610 654 527 157 1246 1364 24.8 44.9 336 434 334 259 224 288 254 226 175 197

ND60010 ~ 645 155 705 17421

1. Operating weight includes ND600 Air handler and M1CZ600 Evaporator Coil Combined.

31.4 46.1 393 570 461 318 267 387 341 303 209 23515 ~ 645 272 705 18591 32.4 45.0 408 639 496 318 272 426 376 333 213 240

M1CZ600 ~ ~ ~ ~ 979 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

Horizontal Airflow

NC3005 539 463 111 1067 1130 35.2 45.5 320 297 247 266 220 204 180 160 172 194

7.5 539 463 137.8 1067 1157 35.4 45.1 329 307 252 269 225 210 185 164 176 198

ND3605.0 567 490 110.2 1122 1184 36.4 44.3 332 328 260 264 224 221 195 173 175 1977.5 567 490 134 1122 1208 36.5 44.0 339 338 265 266 227 226 199 177 178 20010 567 490 150 1122 1224 36.6 43.8 345 344 268 268 230 230 202 180 180 203

ND4807.5 654 527 140.7 1246 1348 43.1 45.1 387 371 288 301 258 248 218 194 202 22810 654 527 156.9 1246 1364 43.2 44.9 392 378 291 303 261 251 221 196 204 230

ND60010 908.5 645 154.9 705 17421 52.1 46.1 446 517 418 361 303 351 309 275 237 26715 908.5 645 271.7 705 18591 52.5 45.0 480 567 440 373 320 378 333 296 250 282

M1CZ600 ~ ~ ~ ~ 979 ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

D (E) (D) C D (E) (D) C

(F) (C) (F) (C)

A (A) (B) B A (A) (B) B

Vertical Horizontal

X

Y CG

X

Y CG

MO

TOR

MO

TOR

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Drain Connections

All drain lines MUST be trapped and located so they will not be exposed to freezing temperatures.

The evaporator blower has 7/8” OD steel condensate stub at each end of a single drain pan. Both ends are closed with plastic caps. A plastic or rubber ell can be used. (Field supplied) Attach the ell to the desired end and run a full size 7/8” drain line to the nearest drain facility. Seal the cap at the unused end with suitable mastic.

Drain piping should be constructed as shown in Figure 8. The 3-inch dimension must equal or exceed the negative static pressure developed by the supply air blowers. If it does not, the condensate will not drain properly and may overflow the drain pan. The trap must be at least 2-inches deep to maintain a water seal under all operating conditions, especially when the blowers are starting.

Refrigerant Mains

Line Sizing

When sizing refrigerant pipe for a split-system air conditioner, check the following:

1. Suction line pressure drop due to friction.

2. Liquid line pressure drop due to friction.

3. Suction line velocity for oil return.

4. Liquid line pressure drop due to vertical rise. For certain piping arrangements, different sizes of suction line pipe may have to be used. The velocity of the refrigerant vapor must always be great enough to carry the oil back to the compressor.

5. Evaporator Located Below Condenser - On a split system where the evaporator blower is located below the condenser, the suction line must be sized for both pressure drop and for oil return.

6. Condenser Located Below Evaporator - When the condenser is located below the evaporator blower, the liquid line must be designed for the pressure drop due to both friction loss and vertical rise. If the pressure drop due to vertical rise and friction exceeds 60 psi, some refrigerant will flash before it reaches the thermal expansion valve.

Table 5: Accessory Operating Weight Distribution (Lbs)1

ACCESSORY NC300 ND360 ND480 ND600BASE2 25 25 30 ~

HOT WATER COIL 35 35 45 35STEAM COIL 1 ROW 30 30 ~ ~

1. These weights should be added to each point load in Table 4.2. This accessory can only be applied on units installed in the vertical position.

Figure 8: Recommended Drain Piping

This Split-System (Air Condensing / Heat Pump / Air Handling) unit is one component of an entire system. As such it requires specific application considerations with regard to the rest of the system (air handling unit, duct design, condensing unit, refrigerant piping and control scheme).

Failure to properly apply this equipment with the rest of the system may result in premature failure and/or reduced performance / increased costs. Warranty coverage specifically excludes failures due to improper application and Unitary Products specifically disclaims any liability resulting from improper application.

Please refer to the equipment Technical Guide, Installation Manual and the piping applications bulletin 247077 or call the applications department for Unitary Products @ 1-877-UPG-SERV for guidance.

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Flash gas:

1. Increases the liquid line pressure loss due to friction that in turn causes further flashing.

2. Reduces the capacity of the refrigerant control device which starves the evaporator.

3. Erodes the seat of the refrigerant control device.

4. Causes erratic control of the refrigerant entering the evaporator.

Take Adequate Precautions

Many service problems can be avoided by taking adequate precautions to provide an internally clean and dry system and by using procedures and materials that conform to established standards.

Use hard drawn copper tubing where no appreciable amount of bending around pipes or other obstructions is necessary. If soft copper is used, care should be taken to avoid sharp bends that may cause a restriction. Pack fiberglass insulation and a sealing material such as permagum around refrigerant lines where they penetrate a wall to reduce vibrations and to retain some flexibility.

Support all tubing at minimum intervals with suitable hangers, brackets or clamps.

Braze all copper-to-copper joints with Silfos-5 or equivalent brazing material. Do not use soft solder. Insulate all suction lines with a minimum of 1/2" ARMAFLEX or equivalent that meets local codes. Liquid lines exposed to direct sunlight and/or high temperatures must also be insulated. Never solder suction and liquid lines together. They can be taped together for convenience and support purposes, but they must be completely insulated from each other.

Before beginning installation of the main lines, be sure that the evaporator section has not developed a leak in transit. Check pressure at the Schrader valve located on the header of each coil. If pressure still exists in the system, it can be assumed to be leak free. If pressure DOES NOT exist the section will need to be repaired before evacuation and charging is performed.

A filter-drier MUST be field-installed in the liquid line of every system to prevent dirt and moisture from damaging the system. Properly sized filter-driers are shipped with each condensing section.

NOTE: Installing a filter-drier does not eliminate the need for the proper evacuation of a system before it is charged.

A field-installed moisture indicating sight-glass should be installed in the liquid line(s) between the filter-drier and the evaporator coil. The moisture indicating sight-glass can be used to check for excess moisture in the system.

The evaporator coil has copper sealing disks brazed over the ends of the liquid and suction connections. The temperature required to make or break a brazed joint is high enough to cause oxidation of the copper unless an inert atmosphere is provided.

NOTE: Dry Nitrogen should flow through the system at all times when heat is being applied and until the joint has cooled. The flow of Nitrogen will prevent oxidation of the copper lines during installation.

Always punch a small hole in sealing disks before unbrazing to prevent line pressure from blowing them off. Do not use a drill as copper shavings can enter system.

NOTE: Solenoid and hot gas bypass valves (if used) should be opened manually or electrically during brazing or evacuating.

NOTE: Schrader valves located on service valves should have their stems removed during brazing to prevent damaging to the valves.

Line Installation

Start Installation of main lines at the condenser unit. Verify the service valves are fully seated by screwing the stem of both valves down into the valve body until it stops. Remove the Schraded valve stem and connect a low-pressure nitrogen source to the service port on the suction line valve body. Punch a small hole in the sealing disk; the flow of Nitrogen will prevent any debris from entering the system. Wrap the valve body with a wet rag to prevent overheating during the brazing process. Overheating the valve will damage the valve seals. Unbraze the sealing disk, cool the valve body and prepare the joint for connections of the main lines. Repeat for the liquid line valve body.

Connect the main liquid line to the liquid line connection on the condenser unit, while maintaining a flow of Nitrogen. Cool the valve body and replace the Schraded valve stem on the service port of the liquid line service valve.

Install the liquid line from the condenser unit to the evaporator liquid connection, maintaining a flow of nitrogen during all brazing operations.

The filter-drier and sight glass must be located in this line, leaving the O.D. unit.

Connect a low-pressure nitrogen source to the Schrader valve located on the evaporator section coil headers. Punch a small hole in the sealing disks, the flow of Nitrogen will prevent any debris from entering the system. Unbraze both liquid and suction sealing disks and prepare the joints for connections of the main lines.

Connect the main liquid line to the liquid line connection on the evaporator section, while maintaining a flow of Nitrogen.

Never remove a cap from an access port unless the valve is fully back-seated with its valve stem in the maximum counter-clockwise position because the refrigerant charge will be lost. Always use a refrigeration valve wrench to open and close these service valves.

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Make the suction line connection at the evaporator and run the line to the condenser unit. Connect the main suction line to the suction line connection on the condenser unit, while maintaining a flow of nitrogen. Cool the valve body and replace the Schrader valve stem on the service port of the liquid line service valve.

Once the brazing process is complete, leak testing should be done on all interconnecting piping and the evaporator before proper evacuation to 500 microns is performed. Once the line set and evaporator section is properly evacuated the service valves can be opened and the condensing unit is now ready to charge with the appropriate weight of refrigerant.

This instruction covers the installation and operation of the basic air handling unit. For refrigerant piping installation instructions refer to document 247077 "Application Data - General Piping Recommendations for Split System Air Conditioning and Heat Pumps".

Expansion Valve Bulb Installation

NC300

Thermal expansion valve bulbs are not factory-installed in their final locations. They must be fastened in a 4 o'clock and 8 o'clock position to the common suction line of the evaporator coil after piping connections are made. Use the bulb clamps from the bag taped to the suction connection inside the blower unit.

ND360/ND480/ND600 With M1CZ600

Thermal expansion valve bulbs are not factory-installed in their final locations. The bulb for System #1 must be fastened in a 4 o'clock or 8 o'clock position to the System #1 suction line leaving the evaporator coil after piping connections are made. Repeat the procedure for System #2, locating the bulb in a 4 o'clock or 8 o'clock position to the System #2 suction line. Use the bulb clamps from the bag taped to the suction connection inside the blower unit.

NOTE: Ensure TXV bulbs are not crossed between systems. Undesirable performance and possible compressor damage may occur.

Liquid Line Solenoids

The unit is shipped with factory installed, normally closed, liquid line solenoid valves. When the solenoid coil is energized with a 24-volt signal, the valve will open.

During brazing operations, the valves should be placed in the OPEN position by removing the stem cap with a 9/16” wrench, then rotating the exposed valve stem inward (CLOCKWISE) approximately 10-12 full turns (from the fully CLOSED position) using a 4” adjustable wrench.

The valve stems should be returned to the CLOSED (COUNTER-CLOCKWISE) position prior to unit operation. The “Pump-out” procedure is detailed in the following section.

The sequence of operation applies to the YC/YD condensing units and NC/ND air handlers when applied as a matched system. Non-matched systems will have to be field wired to operate in a similar fashion as described on page 38.

NOTE: See Liquid Line Solenoid Wiring on pages 37, 38.

Pump Out

The pump out function is a standard feature on the 30 to 50 ton systems. The pump out circuit is activated each time the first and third compressor stage is called for by the thermostat. As such, it’s a “Pump Out On Start Up” design. A normally closed solenoid valve (POS1, 2, 3 or 4) is placed in the liquid line, just prior to the expansion valve.

When cooling is not being called for by the thermostat, the pump out solenoid (POS) is not energized, so it’s in the closed position. When the Smart Equipment Control™ control receives a call for cooling, it energizes a compressor. With the POS being closed, it causes the pressure on the low side of the system to begin falling.

When the low pressure switch (LPS) opens, the control board energizes its on-board pump out relay, providing a 24 vac output to an external relay used to energized the pump out solenoid. The refrigeration circuit being controlled is not in normal operating mode.

If the low pressure switch is already open on a call for cooling, the pump out relay is energized immediately. If the LPS does not open after 5 minutes, the pump out relay is energized.

Duct Connections

Ductwork should always be suspended with hangers or supported by legs. It should never be fastened directly to the building structure.

Allow clearance around ducts for safety in the handling of heated air and for insulation when required.

This system uses R-410A Refrigerant which operates at higher pressures than R-22. No other refrigerant may be used in this system. Gage sets, hoses, refrigerant containers and recovery systems must be designed to handle R-410A. If you are unsure, consult the equipment manufacturer. Failure to use R-410A compatible servicing equipment may result in property damage or injury.

Wear safety glasses and gloves when handling refrigerants. Failure to follow this warning can cause serious personal injury.

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Insulation

Ductwork insulation should meet the following criteria:

Be used when ducts pass through an unconditioned space in the cooling season or through an unheated space during the heating season.

Include a vapor barrier around the outside to prevent the absorption of moisture.

Be no less than 2 inches thick with the weatherproof coating when applied to ducts exposed to outdoor conditions.

Supply Air Ducts

See Figure 9 for suggested method of connecting supply air ductwork. Non-flammable material collars should be used to minimize the transmission of noise and/or vibration.

Return Air Duct Angles

Return air duct angles are shipped turned in. They are intended to be unscrewed and turned for connection of ductwork. The return air grille accessory attaches in the same manner as the panels.

Figure 9: Suggested Method For Connecting Ductwork

24"

AIROUTLET

BLOWERGASKETS(BY INSTALLER)

FLANGED DUCTCONNECTION(FIELDFABRICATED)

NON-FLAMMABLECOLLAR

DUCTTRANSITION

DUCT

Electrical Data

UNITMODEL

HP FLAVOLTAGE

(3PH-60HZ)

MINCIRCUIT

AMPACITY

MAXFUSESIZE

(Amps)

NC300

5

16.7 208 21 3515.2 230 19 307.6 460 10 156.1 575 8 15

7.5

24.2 208 30 5022 230 28 4511 460 14 209 575 11 20

ND360

5.0

16.7 208 21 3515.2 230 19 307.6 460 10 156.1 575 8 15

7.5

24.2 208 30 5022 230 28 4511 460 14 209 575 11 20

10

30.8 208 39 6028 230 35 6014 460 18 3011 575 14 20

ND480

7.5

24.2 208 30 5022 230 28 4511 460 14 209 575 11 20

10

30.8 208 39 6028 230 35 6014 460 18 3011 575 14 20

ND600

10

30.8 208 39 6028 230 35 6014 460 18 3011 575 14 20

15

46.2 208 58 10042 230 53 9021 460 26 4517 575 21 35

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Table 6: Electrical Data

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Table 8: Overload Setting

Electrical Connections Air Handlers with ContactorThe electric box ships complete with motor contactor, transformers, relays and terminal block for making field connections.

NOTE: Remember: On air handlers with factory installed pump out solenoids, wires to the solenoid must be field connected.

Refer to Figures 29 thru 35 for Indoor Unit Wiring Diagrams.

Install a power supply to meet the requirements listed in Table 6.

Provide a disconnect switch and fusing as required.

Install interconnecting control wiring between condensing section, evaporator blower and room thermostat.

NOTE: All unit models with contactor and overload relays, the power wiring for the blower motor is supplied with the overload relay kit.

50 Ton Replacement Motor Contactor InstallationAll 25 - 50 ton split-system indoor units come equipped with a 40 amp motor contactor. However, 50 ton units with a field installed 15 hp motor used in a 208 or 230 Volt application require a 60 amp motor contactor. In these cases, the 40 amp contactor must be replaced in the field with the 60 amp contac-tor that is provided with the overload relay kit. Follow the instructions below to replace the factory installed 40 amp con-tactor with the supplied 60 amp contactor.1. Disconnect electrical power to the unit. The unit may have

more than one power source.

2. The 40 amp motor contactor is located in the unit control box. Disconnect all wires to the contactor.

3. Remove the two screws mounting the top of the contactor, and loosen the one screw at the bottom. Slide out the 40 amp contactor.

4. Mount the replacement 60 amp contactor by sliding the bottom screw slot under the screw loosened in Step 3. Replace the top two screws previously removed. Tighten all three screws to fix the contactor against the control box back plate. Make sure the 60 amp contactor is now mounted in the same orientation as the 40 amp contactor removed in Step 3.

5. Install the overload relay supplied in the kit.

6. Reconnect all wires, previously disconnected in Step 2, to the new 60 amp contactor per unit wiring diagram (40 amp contactor 60 amp contactor terminals are similar).

7. Reconnect electrical power to unit.

Table 7: Overload Relay Kit

VOLTAGE 208/230V 460V 575V

MOTOR HP OVERLOAD KIT

5 2MP04708500 2MP04708300 2MP04708300

7.5 2MP04708700 2MP04708400 2MP04708300

10 2MP04708900 2MP04708500 2MP04708400

15 2MP04709000 2MP04708700 2MP04708500

VOLTAGE 208/230V 460V 575V

MOTOR HP OVERLOAD SETTING (Full Load Amps)1,2,3

5 14/13 6.5 5.2

7.5 21/20 9.5 7.5

10 26/25 13 10.0

15 38/36 18 14.0

1. Motors with Service Factor of 1.15 or Greater: Adjust overload relay dial to the motor nameplate Full Load Amps (FLA).2. Motors with Service Factor Less Than 1.15: Adjust overload relay dial based on the formula: Motor nameplate FLA x 0.90 = relay setting3. For NC300 units equipped with the field installed IntelliSpeed option. Please refer to the IntelliSpeed Kit installations instructions for proper

overload relays and settings.

Table 9: Standard (Non VFD) & Intellispeed (ISP) Low Voltage Wiring

Distance from OD to Gauge

ID unit (one way), feet

50 #20

75 #20

100 #20

150 #18

200 #18

250 #16

Air Handlers are shipped without overload relays. These must be ordered separately to match the selected motor used in the air handler. See unit's Technical Guide or price page for correct overload relay. On 50 ton units with a 15 hp motor at 208 or 230 volts, the factory installed motor contactor must be replaced with a 60 amp contactor provided with the motor overload relay kit. Refer to 50 Ton Replacement Motor Contactor Installation section.

UNIT MODEL HP MOTOR KIT MODEL NUMBER1 FRAME SIZEVOLTAGE

(3PH-60-HZ)

NC300

52LP04605133

184208/230/460

2LP04605158 575

7.52LP04607133

213208/230/460

2LP04607158 575

ND360

5.02LP04605133

184208/230/460

2LP04605158 575

7.52LP04607133

213208/230/460

2LP04607158 575

102LP04610133

215208/230/460

2LP04610158 575

ND480

7.52LP04607133

213208/230/460

2LP04607158 575

102LP04610133

215208/230/460

2LP04610158 575

ND600

102LP04610133

215208/230/460

2LP04610158 575

152LP04615133

254208/230/460

2LP04615158 575

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Drive Packages

Units are shipped from the factory without the blower motor, drives and overload relays. Blower motors, overload relays and drive kits are ordered and shipped separately for field mounting.

All motors are 3-phase. Blower shafts are extended to allow the blowers to be driven from either end. Motor rotation can be reversed by changing the power supply wiring at the motor terminal box.

NOTE: : All blower motors have solid bases and are not inherently protected. For proper operation, these motors require overload relays. Please see current product price pages for overloads relay kits.

Motor Mounting

Units are shipped with a motor mounting assembly installed as shown in Figure 10 for the NC300, ND360, ND480 and Figure 12 for the ND600.

The motor mounting arrangement can be changed to allow motor access based on the airflow arrangement required. The

recommended motor location for each blower arrangement is as follows.

Standard Motor Arrangement (NC300/ND360/ND480)

The NC300, ND360 and ND480 ship from the factory with a motor mounting adapter plate for use with the 7.5 and 10 HP motors. If a 5 HP motor is used, the adapter is not necessary and should be removed and discarded.

The NC300, ND360 and ND480 units are shipped with the motor mount in location A as shown in Figure 10.

Optional Motor Arrangements are possible by moving the entire motor mounting assembly (mounting plate, channels, etc.) to the desired location.

NOTE: The blower section must be lifted off the evaporator section to gain access to the mounting channel fasteners. Since these sections have to be repositioned for the Air Flow arrangements 2 through 10 and 12 of Figures 1 and 2, the motor mounting assembly should be relocated before the two sections are rejoined.

Table 10: Unit Blower Motor Data

1. If field equipped with IntelliSpeed option, please refer to IntelliSpeed installation instructions for proper motor kits.

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Figure 10: NC300/ND360/ND480 Motor Arrangements As Seen In Figures 1 and 2

ND600 Bearing Alignment:

Before the drive kit is installed, turn the blower assembly by hand several times. If it doesn't rotate freely, the center bearing may have been knocked out of alignment during shipping and/or rigging. To realign, refer to Figure 11 and the following instructions:

1. Loosen the bearing collar set screw.

2. With a drift pin in the bearing collar removal hole, loosen the bearing collar by tapping the drift pin in the direction opposite to the shaft rotation.

3. Loosen bolts “A” and “B”.

4. Remove the shim.

NOTE: The bearing support angle must be horizontal to the unit and below the bearing.

5. Tighten bolts “B” without the shim.

6. Tighten bolts “A”.

7. With a drift pin in the bearing collar removal hole, tighten the bearing collar by tapping the drift pin once in the direction of the shaft rotation.

8. Tighten the bearing collar set screw.

9. Loosen bolts “B”

10. Raise the blower shaft and re-install the shim between the bearing and the bearing support angle.

11. Tighten bolts “B”.

ND600 Motor Mounting

The motor mounting plate will accommodate a 10 or 15 HP motor (Refer to Figure 13) and can be raised or lowered using

SEENOTES

AB

SEENOTES

SEENOTES

CD

C

B

SEENOTES

NOTE: Since the motor mounting assembly cannot be secured to the panel with the blower openings, the motor cannot be installed in either of the normally recommended bottom positions.

AIR FLOW ARRANGEMENT 1, 4, 8 OR 11 AIR FLOW ARRANGEMENT 2, 6 OR 7

AIR FLOW ARRANGEMENT 3, 5 OR 10 AIR FLOW ARRANGEMENT 9 OR 12

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1062414-YIM-B-0517


adjustment screws to cover the complete range of pulley settings.

The physical size of the 15 HP motor reduces the adjustment range of the motor mounting plate. To maximize this amount of adjustment, one set of bolt holes is provided near the adjustment screws on each end of the motor mounting plate (Refer to Figure 13).

For some motor/blower wheel arrangements, however, the motor cannot be mounted because the motor terminal box will interfere with one of the blower section panels. To make these motor/blower wheel arrangements possible, a second set of bolt holes is provided near the pivot bolts on each end of the motor mounting plate (See Figure 13).The 15 HP drive package requires two different lengths of belts to vary the blower wheel RPM over the complete range of rated conditions. When the motor is mounted near the adjustment screws, the two lengths of belt are interchangeable except for the higher and lower limits of blower wheel RPM. When the motor is mounted near the pivot bolts, the shorter length of belt is recommended for the higher blower wheel RPM's and the longer length of belt is recommended for the lower blower wheel RPM's. See Figure 12 for the recommended blower motor locations.

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� � � � � � � � � � � * # +

Figure 12: ND600 Factory Motor Mounting Position

ND600 Motor Arrangements

The ND600 unit is shipped with the motor mounting plate in the standard location as shown in Figure 12.

The motor mounting plate can be re-located to three alternate positions:

Alternate Position 1

1. Remove pivot bolts from the mounting plate.

2. Remove the mounting plate from the adjustment screws.

3. Rotate mounting plate 180°.

4. Fasten the mounting plate with pivot bolts removed in Step 1.

5. Fasten mounting plate to the adjustment screws.


The motor mounting plate, the pivot bolts and the adjustment screws can be moved into a position similar to the one shown as standard in Figure 13 but under the other blower scroll. The framework under each blower scroll has the same bolt hole arrangement.


! / � � �

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! / � � �

! 0 � � �

! 0 � � �

The motor mounting plate, the pivot bolts and the adjustment screws can be moved into a position similar to the one detailed in alternate position one but behind the other blower scroll. The framework behind each blower scroll has the same bolt hole arrangement.

Figure 11: ND600 Center Bearing

Figure 13: ND600 Motor Mount Plate

UNIT MODEL DRIVE KIT MODEL NUMBER

BLOWERRPM

RANGE

ADJUSTABLE MOTOR PULLEY FIXED BLOWER PULLEY BELTS

PITCH DIA. (IN.)

BORE (IN.)

PITCH DIA. (IN.)

BORE (IN.)

QTY. PITCH LENGTH

(IN.)

DESIGNATION

NC300

11LD0440 600 - 750 4.0 - 5.0 1 1/8 12.0 1 3/16 2 63.3 A62

1LD0407 700 - 850 4.2 - 5.2 1 3/8 11.0 1 3/16 2 63.3 A62

1LD0442 780 - 940 5.3 - 6.3 1 3/8 12.0 1 3/16 2 63.3 A62

ND360

1LD0415 636 - 795 4.0 - 5.0 1 3/8 11.0 1 3/16 2 63.3 A62

1LD0407 668 - 827 4.2 - 5.2 1 3/8 11.0 1 3/16 2 63.3 A62

1LD0408 827 - 986 5.3 - 6.3 1 3/8 11.0 1 3/16 2 59.7 A59

ND4801LD0409 607 - 776 4.3 - 5.5 1 3/8 12.4 1 3/16 2 85.1 B84

1LD0410 776 - 917 5.4 - 6.6 1 3/8 12.4 1 3/16 2 86.8 B85

ND6001LD0411 692 - 833 4.8 - 6.0 1 3/8 12.4 1 3/16 2 78.6 B78

1LD0412 762 - 931 5.4 - 6.6 1 5/8 12.4 1 3/16 2 76.8 B75

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Air System Adjustment

Refer to Tables 11 thru 15 to adjust the air system. Blower motor pulleys are adjustable in 1/2 turn increments.

Twin Belt Drive Adjustment

To verify that both belts drive at the same speed, make a mark across both belts. Turn the drive several revolutions by hand. If the mark has not separated, the belts are traveling at the same speed.

Twin groove blower motor pulleys should be installed with the shaft set screw (A) towards the motor (See Figure 14).

A

B B

C

D

E

STATIONARY WEB

C

To align pulleys, the housing of the twin groove motor pulley may extend 25% of its length beyond end of motor shaft.

Always align twin groove pulleys using the stationary web.

Check belt tension. Drive packages are supplied with fiberglass belts that must be properly tensioned at installation because

they do not stretch. The belt should deflect 3/16" per foot of belt span with a 2 or 3-pound force. Alignment of the resilient motor mount can be corrected by adjustment at the slots on the end opposite the pulleys.

Table 11: Unit Drive Data

1. 5 HP Only.

Figure 14: Double Groove Pulley

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Airflow Performance

600 0.84 6.0 5.2 0.63 7.2 6.2 0.40 8.4 7.2 0.13 9.7 8.4

660 1.19 7.3 6.3 1.00 8.5 7.3 0.78 9.8 8.5 0.50 11.2 9.7

700 1.42 8.2 7.1 1.25 9.4 8.1 1.03 10.7 9.2 - - -

760 1.78 9.5 8.2 1.63 10.8 9.3 - - - - - -

800 2.02 10.4 9.0 1.89 11.8 10.2 - - - - - -

Table 12: Fan Performance Data - 25 Ton

CFM

Available External Static Pressure - IWG

0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2

RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP

5 HP & Field supplied

Drive

5 HP Motor & Drive 7.5 HP Motor & Drive

7500 600 2.04 648 2.50 694 3.00 738 3.54 781 4.08 823 4.63 863 5.16 903 5.66 942 6.10 981 6.49

7750 603 2.17 652 2.63 698 3.13 742 3.67 785 4.22 827 4.76 867 5.29 907 5.79 946 6.24 984 6.62

8000 608 2.32 656 2.78 702 3.28 747 3.81 789 4.36 831 4.91 871 5.44 911 5.93 950 6.38 989 6.77

8250 613 2.48 661 2.93 707 3.44 752 3.97 795 4.52 836 5.07 877 5.60 916 6.09 955 6.54 994 6.92

8500 619 2.65 667 3.10 713 3.61 758 4.14 800 4.69 842 5.24 882 5.77 922 6.26 961 6.71 1000 7.09

8750 575 2.43 625 2.83 673 3.28 720 3.79 764 4.32 807 4.87 848 5.42 889 5.95 928 6.44 967 6.89 1006 7.27

9000 581 2.62 632 3.02 680 3.47 726 3.98 771 4.51 814 5.06 855 5.61 896 6.14 935 6.63 974 7.08 1013 7.46

9250 589 2.82 639 3.21 687 3.67 734 4.17 778 4.71 821 5.26 862 5.80 903 6.33 942 6.83 982 7.28

9500 596 3.02 647 3.42 695 3.88 741 4.38 786 4.91 829 5.46 870 6.01 910 6.54 950 7.03 989 7.48

9750 604 3.23 655 3.63 703 4.09 749 4.59 794 5.13 836 5.67 878 6.22 918 6.75 958 7.25

10000 613 3.45 663 3.85 711 4.31 758 4.81 802 5.34 845 5.89 886 6.44 927 6.97 966 7.46

10250 621 3.68 672 4.07 720 4.53 766 5.03 811 5.57 853 6.12 895 6.66 935 7.19

10500 630 3.9 680 4.30 729 4.76 775 5.26 819 5.80 862 6.34 904 6.89 944 7.42

10750 639 4.14 689 4.53 738 4.99 784 5.50 828 6.03 871 6.58 913 7.12

11000 648 4.37 699 4.77 747 5.23 793 5.73 837 6.27 880 6.82 922 7.36

11250 657 4.62 708 5.01 756 5.47 802 5.97 847 6.51 890 7.06

11500 667 4.86 717 5.26 766 5.71 812 6.22 856 6.75 899 7.30

11750 676 5.11 727 5.50 775 5.96 821 6.46 866 7.00

High static 7.5 HP & Field Supplied Drive12000 686 5.36 737 5.75 785 6.21 831 6.71 876 7.25

12250 696 5.61 746 6.00 795 6.46 841 6.97 885 7.50

12500 706 5.86 756 6.26 805 6.72 851 7.22


RPM

CFM

10,000 11,000 12,000 13,000 14,000

SP BHP kW SP BHP kW SP BHP kW SP BHP kW SP BHP kW

600 0.20 3.1 2.9 0.02 3.6 3.4 - - - - - - - - -

635 0.31 3.3 3.1 0.13 3.8 3.5 - - - - - - - - -

700 0.54 3.7 3.5 0.38 4.2 3.9 0.20 4.8 4.5 0.03 5.3 5.0 - - -

775 0.85 4.4 4.1 0.70 4.8 4.5 0.54 5.3 5.0 0.39 5.8 5.5 0.20 6.4 6.0

800 0.97 4.7 4.4 0.82 5.1 4.8 0.66 5.6 5.2 0.52 6.1 5.7 0.35 6.7 6.3

875 1.34 5.6 5.2 1.19 6.0 5.7 1.04 6.6 6.2 0.93 7.1 6.6 0.77 7.7 7.2

900 1.47 5.9 5.5 1.33 6.4 6.0 1.17 7.0 6.5 1.07 7.5 7.0 0.90 8.2 7.6

940 1.70 6.5 6.1 1.55 7.0 6.6 1.40 7.7 7.2 1.31 8.3 7.8 1.09 9.0 8.4


RPM

CFM

12,800 14,400 16,000 17,600

SP BHP kW SP BHP kW SP BHP kW SP BHP kW

600 0.82 6.0 5.2 0.59 7.2 6.2 0.35 8.4 7.2 0.08 9.7 8.4 - - -

660 1.17 7.3 6.3 0.96 8.5 7.3 0.73 9.8 8.5 0.45 11.2 9.7 0.14 12.7 11.0

700 1.40 8.2 7.1 1.21 9.4 8.1 0.98 10.7 9.2 0.70 12.2 10.5 0.40 13.7 11.8

760 1.76 9.5 8.2 1.59 10.8 9.3 1.38 12.3 10.6 1.11 13.8 11.9 0.81 15.6 13.5

800 2.00 10.4 9.0 1.85 11.8 10.2 1.64 13.3 11.5 1.38 14.9 12.9 1.09 16.9 14.6

900 2.60 12.8 11.0 2.49 14.5 12.5 2.35 16.0 13.8 - - - - - -

930 2.78 13.5 11.6 2.68 15.3 13.2 - - - - - - - - -

1062414-YIM-B-0517


To check the supply air CFM after the initial balancing has been completed:

1. Drill two (2) 5/16-inch holes in the side panel as shown in Figure 15.

2. Insert at least 8 inches of 1/4 inch tubing into each of these holes for sufficient penetration into the airflow on both sides of the evaporator coil.

3. Using an inclined manometer, determine the pressure drop across the dry evaporator coil. Since the moisture on an evaporator coil may vary greatly, measuring the pressure drop across the wet coil under field conditions would be inaccurate. To assure a dry coil, the refrigerant system should be de-activated while running the test.

4. Knowing the pressure drop across a dry coil, the actual CFM through the unit can be determined from the curves shown in Figures 16-19.

If the CFM is above or below the specified value, the supply air motor pulley may have to be readjusted. After one hour of operation, check the belt and pulleys for tightness and alignment.

After readings are obtained, remove the tubes and seal up the drilled holes in the side panel. Dot plugs (P/N 9509) are available through normal York parts ordering procedures.

5/16"HOLE

5/16"HOLE

"

7"

25"

14"

EVAPORATORCOIL

FILTERS

COIL SECTION

22


RPM

CFM

16,000 18,000 20,000 22,000 24,000

SP BHP kW SP BHP kW SP BHP kW SP BHP kW SP BHP kW

Failure to properly adjust the total system air quantity can result in extensive blower damage.

Figure 15: Hole Locations For Reading Coil Pressure Drop

0.000.100.200.300.400.500.600.70

9000 11000 13000 15000

I.W.C

.

CFM

Pressure Drop Across Dry Indoor Coil

1062414-YIM-B-0517


Figure 16: NC300 - Pressure Drop Vs. Cfm Across Dry Indoor Coil

Figure 17: ND360 - Pressure Drop Vs. Cfm Across Dry Indoor Coil

0.000.100.200.300.400.500.600.70

9000 10000 11000 12000 13000 14000 15000

I.W.C

.

CFM


1062414-YIM-B-0517


0.00

0.10

0.20

0.30

0.40

0.50

0.60

0.70

15000 17000 19000 21000 23000 25000

I.W.C

.

CFM


Figure 18: ND480 - Pressure Drop Vs. Cfm Across Dry Indoor Coil

Figure 19: ND600 & M1CZ600 - Pressure Drop Vs. Cfm Across Dry Indoor Coil

0.000.100.200.300.400.500.600.70

12000 14000 16000 18000 20000

I.W.C

.

CFM


1062414-YIM-B-0517


TOP

FRONT SIDE

Figure 20: NC300 Unit Dimensions

4X Ø1.093 K0CONTROLS

CONNECTION

Ø 0.88 K0ELECTRIC HEATCONNECTION

15.9

3.0

9.1

5.3

22.062.4

22.0

57.7

22.5

5.3

2.6

19.0

SUPPLYAIR

SUPPLYAIR

Ø 1.093 KOØ 0.88 LIQUIDCONNECTION

Ø 2.13 SUCTIONCONNECTION

Ø 0.88 DRAINCONNECTION

25.0

7.63.5

3.44.14.2

38.1

0.195.6

100.1

2.4

33.237.3

36.7

74.6

RETURNAIR

RETURNAIR

1062414-YIM-B-0517


HORIZONTAL CONFIGURATION

Figure 21: NC300 Unit Dimensions (Continued)

74.073.3

SUPPLYAIR

RETURNAIR

1062414-YIM-B-0517


TOP

57.7 Ø0.88 KOELECTRIC HEATCONNECTION

15.9

4X Ø0.88 KOCONTROLS

CONNECTION

3.0

9.1

5.3

22.062.422.022.5

5.3

2.6

19.0

SUPPLYAIR

SUPPLYAIR

FRONT SIDE

100.195.6

2.4

33.2

37.3

36.7

Ø0.88 LIQUIDCONNECTION

SYSTEM 2

Ø1.125 SUCTIONCONNECTION

SYSTEM 1

Ø0.88 DRAINCONNECTION


SYSTEM 238.1

3.44.1

5.1

6.1

3.6 5.5

23.6

5.9

74.7

0.63


SYSTEM 1RETURNAIR

RETURNAIR

Figure 22: ND360 Unit Dimensions

1062414-YIM-B-0517



73.374.0

SUPPLYAIR

RETURNAIR

Figure 23: ND360 Unit Dimensions (Continued)

1062414-YIM-B-0517


TOP

4X Ø0.88 KOCONTROLS

CONNECTION

3.0

5.5

5.3

22.060.5

22.020.65.3

2.6

19.0SUPPLY

AIRSUPPLY

AIR

FRONT SIDE


44.0

44.740.5

2.4

98.5103.1

0.63

89.4

10.1

23.1

7.97.63.5

3.24.3

4.57.1

45.4


SYSTEM 1


SYSTEM 2


SYSTEM 1

Ø0.88 DRAINCONNECTION


SYSTEM 2

RETURNAIR

RETURNAIR

105.1

1062414-YIM-B-0517



88.288.8

RETURNAIR

SUPPLYAIR

Figure 25: ND480 Unit Dimensions (Continued)

1062414-YIM-B-0517


TOP

103.123.061.7

23.018.5

2.6

24.9

6.14.6

6.17.8

9.1

Ø0.88 KOCONTROLS

CONNECTION

Ø1.13 KOCONTROLS

CONNECTION

Ø1.38 KOCONTROLS

CONNECTION

DETIAL ASCALE 0.375

(2X TYP)

SEE DETAIL A

SUPPLYAIR

SUPPLYAIR

FRONT SIDE

45.5

45.4

44.0

SUPPLYAIR

SUPPLYAIR


1062414-YIM-B-0517


TOP

53.7

FRONT SIDE

54.4

49.5

2.4

2.3

53.7

98.5103.1105.1

RETURNAIR

RETURNAIR


SYSTEM 2


SYSTEM 1

Ø.88 DRAINCONNECTION


SYSTEM 2


SYSTEM 1 3.26.77.6

3.47.3

13.3

27.6

10.2

Figure 27: M1CZ600 Evaporator Section Dimensions

1062414-YIM-B-0517


VERTICAL CONFIGURATION

FRONT SIDE

53.7

54.4

45.5

99.0

97.8

103.1105.1

SUPPLYAIR

SUPPLYAIR

RETURNAIR

RETURNAIR


98.4

97.2

SUPPLYAIR

RETURNAIR

NAMEPLATE

Figure 28: ND600 Air Handler & M1CZ600 Evaporator Coil Dimensions

1062414-YIM-B-0517


Table 16: Unit Connection Sizes

Maintenance

Filters must be cleaned or replaced as often as necessary to assure good airflow and filtration.

To remove filters through the sides of the unit, remove either the solid side panel on the piping end, or the larger side panel on the end opposite the piping.

To remove the filters from the front of the unit, loosen 2 screws and raise the top filter retainer. The upper filters can be lifted over the center filter lip. Three wing nuts are provided under the center filter retainer. Remove these and a part of the center filter support, giving access to the bottom filters.

Drain pan(s) should be inspected regularly to assure proper drainage.

The evaporator blower bearings and blower motor bearings are permanently lubricated.

Model NC300 ND360 ND480 ND600 M1CZ600ADimensions (inches)

Length 100.1 100.1 103.1 103.1 103.1

Width 38.1 38.1 45.4 45.5 53.7

Height 74.6 74.7 89.4 45.4 54.4

System DataNo. Refrigeration Circuits 1 2 2 2

Suction Line OD (in.) 2 1/8 1 1/8 1 3/8 - 2 1/8

Liquid Line OD (in.) 7/8 7/8 7/8 - 7/8

Power Wiring Knockout 7/8 7/8 7/8 1 3/8 -

Control Wiring Knockout 1 1/8 7/8 7/8 7/8 -

Drain Line 7/8 7/8 7/8 - 7/8

Blower OutletNumber 2 2 2 2 -

Width 19.0 19.0 19.0 24.9 -

Length 22.0 22.0 22.0 23.0 -

Return Air InletWidth 33.2 33.2 40.5 - 49.5

Length 95.6 95.6 98.5 - 98.5

1062414-YIM-B-0517


Typical Wiring Diagrams

Figure 29: Typical NC300 Indoor Unit Wiring Diagram

1062414-YIM-B-0517


Figure 30: Typical ND360, 480 & 600 Indoor Unit Wiring Diagram (Contactor)

1062414-YIM-B-0517


Figure 31: Typical Field Wiring Diagram - NC300 Evaporator Unit with YC300 Condenser Unit

NOTE: On non NC/ND Evaporator models, isolation relays must be installed to avoid overloading on 75 VA transformers on the condensing unit.

Figure 32: Typical NC300 Liquid Line Solenoid Wiring

W1 W2 Y1 G Y2 0CC CX R SD-24

SE CONTROL BOARD THERMOSTAT CONNECTIONSTB2

TB1

CONDENSER CONTROL BOX

EVAPORATOR CONTROL BOX

THERMOSTAT TWO STAGE COOL

R C Y1 Y2 G W1 W2

C S1 S2 G1 G2 66 60 X

C S1 S2 G1 G2 66 60 X

219 / Y218 / BR

1LLS

VALVE SYS 2BLK

BLK

C O I L

1062414-YIM-B-0517


Figure 33: Typical Field Wiring Diagram ND360/480 Evaporator Units, ND600 Air Handler and M1CZ600A Evaporator Coil when Matched with YD360/480/600 Condenser

NOTE: On non ND evaporator models, isolation relays must be installed to avoid overloading on 75VA transformers on the condensing unit.

Figure 34: Typical ND360/480 & M1CZ600A Liquid Line Solenoid

1062414-YIM-B-0517


Figure 35: Typical Liquid Line Solenoid Wiring

Standard Terminal Block on NC300, ND360/480 and ND600 with M1CZ600A models. On non NC/ND models isolation relays must be installed to avoid overloading on 75 VA transformer on condensing unit.

Non NC/ND units may not include any or all of the components required to wire the unit. Use the diagram as general reference only.

Primary side of transformer connect to line side of power supply.

Primary side of transformer connect to line side of power supply.

1062414-YIM-B-0517


Start-Up Sheet

START-UP & SERVICE DATA INSTRUCTION

START-UP CHECKLISTDate: _______________________________________________________________________________________________________

Job Name: __________________________________________________________________________________________________

Customer Name: _____________________________________________________________________________________________

Address: ____________________________________________________________________________________________________

City: ______________________________ State: ______________________________ Zip: ________________________________

Evaporator Model Number: _______________________________ Serial Number: __________________________________________

Condenser Model Number: _______________________________ Serial Number: __________________________________________

Qualified Start-up Technician: _________________________________ Signature: _________________________________________

HVAC Contractor: _________________________________________________________ Phone: _____________________________

Address: ____________________________________________________________________________________________________

Contractor’s E-mail Address: ____________________________________________________________________________________

Electrical Contractor: _________________________________________________________ Phone:___________________________

Distributor Name: ___________________________________________________________ Phone: ___________________________

WARRANTY STATEMENT

Johnson Controls/UPG is confident that this equipment will operate to the owner's satisfaction if the proper procedures are followed and checks are made at initial start-up. This confidence is supported by the 30 day dealer protection coverage portion of our standard warranty policy which states that Johnson Controls/UPG will cover parts and labor on new equipment start-up failures that are caused by a defect in factory workmanship or material, for a period of 30 days from installation. Refer to current standard warranty policy and warranty manual found on UPGnet for details.

In the event that communication with Johnson Controls/UPG is required regarding technical and/or warranty concerns, all parties to the discussion should have a copy of the equipment start-up sheet for reference. A copy of the original start-up sheet should be filed with the Technical Services Department.

The packaged unit is available in constant or variable air volume versions with a large variety of custom options and accessories available. Therefore, some variation in the startup procedure will exist depending upon the products capacity, control system, options and accessories installed.

This start-up sheet covers all startup check points common to all package equipment. In addition it covers essential startup check points for a number of common installation options. Depending upon the particular unit being started not all sections of this startup sheet will apply. Complete those sections applicable and use the notes section to record any additional information pertinent to your particular installation.

Warranty claims are to be made through the distributor from whom the equipment was purchased.

EQUIPMENT STARTUP

Use the local LCD or Mobile Access Portal (MAP) Gateway to complete the start-up.

A copy of the completed start-up sheet should be kept on file by the distributor providing the equipment and a copy sent to:

Johnson Controls/UPGTechnical Services Department5005 York DriveNorman, OK 73069

COMMERCIAL SPLIT SYSTEMS7.5 To 50.0 TON

1062414-YIM-B-0517


1034350-UCL-D-0817

2 Unitary Products Group

SAFETY WARNINGS

The inspections and recording of data outlined in this procedure are required for start-up of Johnson Controls/UPG's packaged products. Industry recognized safety standards and practices must be observed at all times. General industry knowledge and experience are required to assure technician safety. It is the responsibility of the technician to assess all potential dangers and take all steps warranted to perform the work in a safe manner. By addressing those potential dangers, prior to beginning any work, the technician can perform the work in a safe manner with minimal risk of injury.

NOTE: Read and review this entire document before beginningany of the startup procedures.

DESIGN APPLICATION INFORMATION

This information will be available from the specifying engineer who selected the equipment. If the system is a VAV system the CFM will be the airflow when the remote VAV boxes are in the

full open position and the frequency drive is operating at 60 HZ. Do not proceed with the equipment start-up without the design CFM information.

Design Supply Air CFM: __________________________ Design Return Air CFM: ______________________________________

Design Outdoor Air CFM At Minimum Pos ition: _______________________________________________________

Tota l Exte rna l S ta tic Pressure : ____________________________________________________________________

Supply S ta tic Pressure : _________________________________________________________________________

Return S ta tic Pressure : _________________________________________________________________________

Des ign Building S ta tic Pressure : __________________________________________________________________

ADDITIONAL APPLICATION NOTES FROM SPECIFYING ENGINEER:

Lethal voltages are present during some start-up checks. Extreme caution must be used at all times.

Moving parts may be exposed during some startup checks. Extreme caution must be used at all times.

1062414-YIM-B-0517


1034350-UCL-D-0817

Unitary Products Group 3

REFERENCE

General Inspection Completed See NotesUnit inspected for shipping, storage, or rigging damage

Unit installed with proper clearances

Unit installed within slope limitations

Refrigeration system checked for gross leaks (presence of oil)

Terminal screws and wiring connections checked for tightness

Filters installed correctly and clean

Condensate drain trapped properly, refer to Installation Manual

All field wiring (power and control) complete

Refrigerant Line Inspection System 1 System 2

Is Condenser below Evaporator? Yes No Yes No

Total Line Length end to end. _______ Ft. _______ Ft.

Vertical Lift in Ft. _______ Ft. _______ Ft.

Vertical Fall in Ft. _______ Ft. _______ Ft.

Number of Elbows? _______ Ea. _______ Ea.

Liquid Line Size _______ Ea. _______ Ea.

Suction Line Size _______ Ea. _______ Ea.

Solenoid Valve? Yes No Yes No

Check Valves? Yes No Yes No

Check Valves / Solenoid arrangements installed as per UPG Piping Guide Yes No Yes No

Oil Separator ? Yes No Yes No

Accumulator ? Yes No Yes No

TXV - Hard shutoff Yes No Yes No

Heatpump Yes No Yes No

Air Moving Inspection Completed See NotesAlignment of drive components

Belt tension adjusted properly

Blower pulleys tight on shaft, bearing set screws tight, wheel tight to shaft

Pressure switch or transducer tubing installed properly

1062414-YIM-B-0517


1034350-UCL-D-0817

4 Unitary Products Group

Operating Measurements - Air Flow

ELECTRICAL DATAT1 - T2 ____________________________ Volts

Control Voltage ______________________ Volts

T2 - T3 ____________________________ Volts

T1 - T3 ____________________________ Volts

Fan operates with proper rotation (All VFD equipped units with the optional Manual Bypass must be phased for correct blower rotation with the Bypass switch set in the LINE position) ID Fans Exh. Fans Cond. Fans

Pressure drop across dry evaporator coil (At maximum design CFM) 1

1. Consult the proper airflow to pressure drop table to obtain the actual airflow at the measured pressure differential.

IWC

External Static Pressure IWC

Return Static Pressure IWC

Supply Static Pressure IWC

Supply Air CFM Using Dry Coil Chart CFM

Final Adjusted Supply Air CFM2

2. Was a motor pulley adjustment or change required to obtain the correct airflow?Was it necessary to increase of decrease the airflow to meet the design conditions?If the motor pulley size was changed, measure the outside diameters of the motor and blower pulleys and record those diameters here;

Blower Motor HP _______________________________FLA________ RPM________

Pulley Pitch Diameter ______________Turns Out________ Final Turns Out________

Blower Pulley Pitch Diameter ________________ Fixed Sheave_________________

CFM

Device Nameplate Measured List All Three Amperages

Supply Fan Motor1,2

1. VAV units with heat section - simulate heat call to drive VAV boxes and VFD/IGV to maximum design airflow position.2. VAV units without hea t section - VAV boxes mus t be se t to maximum des ign a irflow pos ition. Notes above apply for 3rd party application only.

AMPS AMPS

Condenser Fan #1 AMPS AMPS

Condenser Fan #2 (if equipped) AMPS AMPS



Compressor #1 AMPS AMPS

Compressor #2 (if equipped) AMPS AMPS



1062414-YIM-B-0517


1034350-UCL-D-0817

Unitary Products Group 5

OPERATING MEASUREMENTS - COOLING

REFRIGERANT SAFETIES

OPERATING MEASUREMENTS ELECTRIC HEATING

Heater kW ____________kW Heater Voltage, Nameplate ____________ Volts

Heater Model Number: _______________________________

Serial Number: ______________________________________

Stage Discharge Pressure

Discharge Temp.

Liquid LinePressure At

Service Valve

Liquid Line Temp.1

1. Liquid line temperature should be taken before filter/drier.

Subcooling2

2. Subtract 10 psi from discharge pressure for estimated liquid line pressure

Suction Pressure

Suction Temp. Superheat

First3

3. If Rawal valve installed, contact Technical Service.

# ° # ° ° # ° °Second (if equipped) # ° # ° ° # ° °Third (if equipped) # ° # ° ° # ° °Fourth (if equipped) # ° # ° ° # ° °Heat Pump 1st Stage # ° # ° ° # ° °

Outside air temperature ________________ db °F ________________ wb °F ________________ RH%

Return Air Temperature ________________ db °F ________________ wb °F ________________ RH%

Mixed Air Temperature ________________ db °F ________________ wb °F ________________ RH%

Supply Air Temperature ________________ db °F ________________ wb °F ________________ RH%

Action Completed See NotesProve Compressor Rotation (3 phase only) by guage pressure

Prove High Pressure Safety, All Systems

Prove Low Pressure Safety, All Systems

Heater Nameplate Measured List All Three Amperages

Stage 1 _________AMPS _________AMPS _________AMPS _________AMPS




Checked Heater Limit Yes No

Air Moving Switch Installed? Yes No

Subject to change without notice. Printed in U.S.A. 1062414-YIM-B-0517Copyright © 2017 by Johnson Controls, Inc. All rights reserved. Supersedes: 1062414-YIM-A-0913

York International Corporation5005 York Drive

Norman, OK 73069

OPERATIONAL MEASUREMENTS - STAGING CONTROLS

FINAL - INSPECTION

OBSERVED PRODUCT DEFICIENCIES & CONCERNS:

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

________________________________________________________________________________________________________

Verify Proper Operation of Heating/Cooling Staging ControlsCreate a cooling demand at the Thermostat, BAS System or Smart Equipment™Verify that cooling/economizer stages are energized.

Create a heating demand at the Thermostat, BAS System or Smart Equipment™Verify that heating stages are energized.

Verify Proper Operation of the Variable Frequency Drive (If Required)Verify that motor speed modulates with duct pressure change.

Verify that all operational control set points have been set to desired valueScroll through all setpoints and change as may be necessary to suit the occupant requirements.

Verify that all option parameters are correctScroll through all option parameters and ensure that all installed options are enabled in the software and all others are disabled in the software. (Factory software settings should match the installed options)

Verify that all access panels have been closed and secured

Save a backup file from the unit control board onto a USB flash drive.

R-410A - MODELS: NC300, 2-Pipe ND360

Documents