Carrier 40UV075, 40UV050, 40UV125, 40UV100, 40UV200+ Installation, Start-up And Service Instructions Manual

...

Page 1

WARNING

This product can expose you to chemicals including Lead, lead compounds, and formaldehyde, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov

Ce produit peut vous exposer à des agents chimiques, y compris le plomb et les composes de plomb, et formaldéhyde, identifiés par l’État de Californie comme pouvant causer le cancer et des malformations congénitales ou autres troubles de l’appareil reproducteur. Pour de plus amples informations, prière de consulter www.P65Warnings.ca.gov

AVERTISSEMENT

ADVERTENCIA

Este producto puede exponerlo a químicos que incluyen plomo y compuestos de plomo, y formaldehído, los cuales son conocidos en el Estado de California como causantes de cáncer y defectos de nacimiento, u otros daños reproductivos. Para mayor información, visite www.P65Warnings.ca.gov

40UV,UH050-200

Unit Ventilators

Installation, Start-Up and Service Instructions

TABLE OF CONTENTS

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

PRE-INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . 2

Unpack and Inspect Units . . . . . . . . . . . . . . . . . . . . 2

Protect Units From Damage . . . . . . . . . . . . . . . . . . 2

Prepare Jobsite for Unit Installation . . . . . . . . . . . 2

Identify and Prepare Units. . . . . . . . . . . . . . . . . . . . 2

INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 1 — Place Units in Position . . . . . . . . . . . . . . 2

Step 2 — Make Piping Connections . . . . . . . . . . . . 9

Step 3 — Make Electrical Connections . . . . . . . . 10

Step 4 — Mount Actuators (Field-Supplied) . . . . 10

Step 5 — Make Duct Connections . . . . . . . . . . . . 30

Step 6 — Make Final Preparations . . . . . . . . . . . . 31

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Periodic Maintenance Checklist . . . . . . . . . . . . . . 32

Preventing Excessive Condensation on Unit . . . 32

Check Drain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Fan Motor Bearings . . . . . . . . . . . . . . . . . . . . . . . . 32

Fan Shaft Ball Bearing . . . . . . . . . . . . . . . . . . . . . . 32

Clean Fan Wheel . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Clean or Replace Air Filters . . . . . . . . . . . . . . . . . 32

ECM Motor Removal and Re-installation . . . . . . . 32

Blower Assembly Section Removal and

Re-installation . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Coil Assembly Removal and Re-installation . . . . 38

Ball Bearing Replacement . . . . . . . . . . . . . . . . . . . 40

Sleeve Bearing Replacement . . . . . . . . . . . . . . . . 45

Blower Wheel Removal and Re-installation . . . . 47

Damper Section Removal and Re-installation. . . 48

UNIT START-UP CHECKLIST . . . . . . . . . . . . . . CL-1

SAFETY CONSIDERATIONS

Installation and servicing of this unit can be hazardous due to system pressure, electrical components and equipment location (such as a ceiling or elevated structure). Untrained personnel can perform the basic maintenance functions of replacing filters. Only trained and qualified service personnel should perform all other operations. See Fig. 1 for Proposition 65 warning label.

When installing this unit, observe precautions in the literature, tags and labels attached to the equipment, and any other safety precautions that may apply.

• Follow all safety codes.

• Wear safety glasses and work gloves.

• Use care in handling and installing this unit and any accessories.

• Use quenching cloth for all brazing operations.

• Have fire extinguisher available for all brazing operations.

WARNING

Before performing service or maintenance operations, turn off main power switch to the unit. Electrical shock could cause personal injury.

CAUTION

Sharp edges, coil surfaces and rotating fans are a potential injury hazard - avoid contact.

Fig. 1 — Proposition 65 Warning Label

Catalog No. 04-53400048-01 Printed in U.S.A. Form 40UV-UH-11SI Pg 1 8-18 Replaces: 40UV-UH-10SI

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Page 2

INTRODUCTION

This document contains general installation instructions for the 40UV, UH unit ventilators. Refer to the unit wiring diagram or to specific manufacturer literature for any other type of factorymounted controls.

See submittal drawings for unit configurations, dimensions, clearances, and pipe connections. Refer to unit wiring label for all electrical connections; follow NEC (National Electrical Code) and local codes.

PRE-INSTALLATION

Unpack and Inspect Units

Immediately inspect each unit upon receipt. Remove shipping wraps from all units. Check the shipment against shipping order.

If shipment is damaged or incomplete, file claim with transportation company and advise Carrier immediately.

To prevent handling damage, remove shipping pallet only when within a few feet of final position. Use 2 or more pallet dollies to move units. See Fig. 2.

CAUTION

To prevent handling damage, remove pallet only when within a few feet of final position.

INSTALLATION

CAUTION

Units must be installed level and plumb. Failure to do so may result in excessive vibration and/or premature failure.

Step 1 — Place Units in Position

PLACING VERTICAL UNITS

1. Select the unit location; ensure that service clearance is provided. Allow enough grille clearance to maintain unrestricted airflow. See submittal drawings and Fig. 3 and 4 for dimensions.

2. Make sure wall behind unit is smooth and plumb; if necessary, install furring strips on walls with irregular surfaces or mullions. Furring strips must be positioned behind mounting holes in unit. Fasteners, furring strips, and other seals (if required) must be field-supplied.

3. Remove all wall and floor moldings from behind the unit.

4. Move unit into position. Unit must be snug against wall and furring strips.

5. Adjust unit leveling legs so unit is level. Unit must be level for proper operation and condensate drainage.

6. Using field-supplied fasteners, reach into unit and attach unit to the wall using the back panel.

7. Protect the unit from jobsite debris. Do not allow foreign material to fall into drain pan. Prevent dust and debris from being deposited on motor or fan.

8. Vertical units are intended for exposed floor mount application only. Do not suspend from structure.

/4-in. mounting holes in the

Fig. 2 — Handling the Unit

Protect Units from Damage

To maintain warranty, protect units against adverse weather, theft, vandalism, and debris on the jobsite. Do not allow foreign material to fall into drain pan. Prevent dust and debris from being deposited on motor and fan wheels.

If the equipment is stored for any length of time before installation, it should remain in its shipping container in a clean, dry, and climate controlled area.

Prepare Jobsite for Unit Installation

To save time and to reduce the possibility of costly errors, set up a complete sample installation in a typical room at jobsite. Check all critical dimensions such as pipe, wire, and duct connection requirements. Refer to job drawings and product dimension drawings as required. Confirm that building construction is adequate to support the unit. See Table 1 for unit weight data. Instruct all trades in their part of the installation.

Identify and Prepare Units

1. Be sure power requirements match available power source. Refer to the unit nameplate and wiring diagram.

2. Remove front (40UV) or bottom (40UH) access panels from the unit. Retain the and panels for re-installation later.

3. Rotate the fan shaft by hand to ensure that fans are unrestricted and can rotate freely. Check for shipping damage and fan obstructions.

/32-in. socket head fasteners

PLACING HORIZONTAL UNITS

1. Select the unit location; ensure that service clearance is provided. Allow enough grille clearance to maintain unrestricted airflow. Make sure that ceiling is able to support the weight of the unit. See Fig. 5-7 for nominal unit weight. See submittal drawings and Fig. 5-7 for dimensions.

NOTE: See page 30 for additional requirements regarding units ducted to multiple openings.

2. Ensure that bottom panels have been removed from unit. When unit is lifted, access to the

/4-in. mounting holes is through the bottom of the unit. Hanger rods and fasteners and other required hardware must be field-supplied.

3. Using a forklift or other mechanical lifting device, raise the unit to the mounting position. If forklift or other lifting device is likely to contact a painted wall surface, protect the surface as necessary.

4. Use rods and fasteners to suspend the unit at the mounting holes on the top of the unit. The unit must be suspended at the

/4-in. mounting holes; do not use any

other locations.

5. If desired, install field-supplied vibration isolators. Adjust isolators so unit is uniformly suspended and pitched.

6. To ensure proper drainage and operation, ensure unit is level and tighten all fasteners. DO NOT mount the unit on a slope. Pitch of horizontal suspended units can change after coil is filled; recheck after filling coil.

7. Protect the unit from jobsite debris. Do not allow foreign material to fall into drain pan. Prevent dust and debris from being deposited on motor or fan.

Page 3

Table 1 — Physical Data

UNIT 40UV, UH 050* 075 100 125 150 200†

NOMINAL AIRFLOW (cfm)

FANS

Quantity Diameter (in.) Width (in.)

40UV FILTERS

Nominal Size (in.) (1-in. thick) Nominal Size (in.) (2-in. thick) Quantity

40UH FILTERS

Nominal Size (in.) (1-in. thick) Nominal Size (in.) (2-in. thick) Quantity

40UV SHIPPING WEIGHT** (Approx lb)

165/8-in. Deep Unit 217/8-in. Deep Unit

40UH SHIPPING WEIGHT** (Approx lb)

34-in. Deep Unit 391/2-in. Deep Unit 431/2-in. Deep Unit 471/2-in. Deep Unit

40UV INSTALLED WEIGHT** (Approx lb)

165/8-in. Deep Unit 217/8-in. Deep Unit

40UH INSTALLED WEIGHT** (Approx lb)

34-in. Deep Unit 391/2-in. Deep Unit 431/2-in. Deep Unit 471/2-in. Deep Unit

COIL WATER WEIGHT (Approx lb per row of coil)

COIL CONNECTIONS (in. OD)

Water Coils with 1 to 5 Rows Steam Coils (All Units)

DX Coils

CONDENSATE DRAIN

LEGEND

DX — Direct Expansion * 40UV only. † 40UH 43 ** Weight based on damper-controlled unit with 5-row coil and fac-

tory-installed controls.

/2 and 471/2-in. deep units only.

500 750 1000 1250 1500 2000

123455

8.32 8.32 8.32 8.32 8.32 9.5 888886

91/4 x 241/491/4 x 361/491/4 x 481/491/4 x 601/491/4 x 721/ 91/4 x 241/491/4 x 361/491/4 x 481/491/4 x 601/491/4 x 721/

— —

11111—

—9 —9

/4 x 361/493/4 x 481/493/4 x 601/493/4 x 721/493/4 x 721/

/4 x 361/493/

x 481/493/4 x 601/493/4 x 721/493/4 x 721/

—11111

330 400 480 590 660 — 340 410 490 605 675 —

— 420 500 620 690 — — 500 600 740 830 — — 530 640 790 880 1020 —————1050

315 380 460 570 640 — 325 390 470 595 655 —

— 405 480 600 670 — — 485 580 720 810 — — 515 620 770 860 1000 —————1030

1.0 1.5 2.0 2.4 2.7 2.7

Return Supply

11/

Suction Liquid

Page 4

NOTES:

1. All dimensions are in inches.

2. Dimension does not include end panels.

3. Three front panels provided for service access.

4. Motor and electrical power input box on right side of unit. Box includes fan speed switch, On/Off switch and non-fused disconnect switch.

5. Connection hand is determined by facing discharge of unit.

UNIT

40UV

AIRFLOW

(cfm)

DIMENSIONS (in.) APPROXIMATE

SHIPPING

WEIGHT (lb)

APPROXIMATE

INSTALLED

WEIGHT (lb)

W1 W2 W3

050 500 50 24 16.60 330 315 075 750 62 36 31.67 400 380 100 1000 74 48 46.74 480 460 125 1250 86 60 61.81 590 570 150 1500 98 72 78.47 660 640

2.95

2.00

12.10 (TYP)

(SEE NOTE 2)

1.00

(UNIT SHOWN

WITH 1.00" END

PA NE L S)

MOTOR

ELECTRICAL BOX

RECESSED RETURN AIR/KICK PANEL

FRONT VIEW

NON-FUSED DISCONNECT SWITCH

FRONT SERVICE PANELS (SEE NOTE 3)

UV OPEN CONTR

OLLER

(OPTIONAL)

17.50 (TYP)

.90

15.00 (TYP)

18.25 (TYP)

7.00 (TYP)

22.00 (TYP)

2.00 (TYP)

8.08 (TYP-SEE NOTE 2)

7.04 (TYP)

1.54 (TYP)

6.75 (TYP)

.75 (MOUNTING HOLES-TYP4 PLACES)

4.50

REAR VIEW

REMOVABLE PANEL

(

EACH END)

PIPE TUNNEL

OUTSIDE AIR OPENING

PIPING ACCESS OPENING (EACH END)

30.00

27.30

13.90

16.63

7.02

2.40

RIGHT SIDE VIEW

PIPING TUNNEL

1.70

16.63

5.22

10.61 (TYP)

2.08 (TYP)

12.37 (TYP)

.78

(TYP)

TOP VIEW

BARSTOCK DISCHARGE GRILLE

REMOVABLE BOTTOM PANEL (EACH END)

Fig. 3 — 40UV Dimensions — 16

/8-in. Deep Units (Standard)

Page 5

UNIT

40UV

AIRFLOW

(cfm)

DIMENSIONS (in.) APPROXIMATE

SHIPPING

WEIGHT (lb)

APPROXIMATE

INSTALLED

WEIGHT (lb)

W1 W2 W3

050 500 50 24 16.60 340 325 075 750 62 36 31.67 410 390 100 1000 74 48 46.74 490 470 125 1250 86 60 61.81 605 595 150 1500 98 72 78.47 675 655

NOTES:

1. All dimensions are in inches.

2. Dimension does not include end panels.

3. Three front panels provided for service access.

4. Motor and electrical power input box on right side of unit. Box includes fan speed switch, On/Off switch and non-fused disconnect switch.

5. Connection hand is determined by facing discharge of unit.

27.30

30.00

19.37

2.40

13.75

7.02

1.74

PIPING TUNNEL

2.00

3.00

12.00 (TYP)

1.00

(UNIT SHOWN

WITH 1.00" END

PANELS)

(SEE NOTE 2)

MOTOR

ELECTRICAL BOX

RECESSED RETURN AIR/KICK PANEL

NON-FUSED DISCONNECT SWITCH

FRONT SERVICE PA NE L S (SEE NOTE 3)

UV OPEN CONTROLLER (OPTIONAL)

21.88

1.70

5.20

5.22

10.61 (TYP)

12.37 (TYP)

2.08 (TYP)

5.98

(TYP)

TOP VIEW

REMOVABLE BOTTOM PANEL (EACH END)

BAR

STOCK

DISCHARGE GRILLE

FRONT VIEW

END VIEW

18.25 (TYP)

15.00 (TYP)

.75 (MOUNTING HOLES-TYP4 PLACES)

17.50 (TYP)

7.00 (TYP)

22.00 (TYP)

2.00 (TYP)

0.90

8.08

(TYP-SEE

NOTE 2)

7.04 (TYP)

1.54 (TYP)

6.75 (TYP)

4.50

REAR VIEW

PIPE TUNNEL

OUTSIDE AIR OPENING

REMOVABLE PANEL (EACH END)

PIPING ACCESS OPENING (EACH END)

Fig. 4 — 40UV Dimensions — 21

/8-in. Deep Units (With Piping Chase)

Page 6

NOTES:

1. All dimensions are in inches.

2. Dimension does not include end panels.

3. Two bottom panels provided for service access.

4. Motor and electrical power input box on right side of unit. Box includes fan speed switch, and non-fused disconnect switch.

5. Drawing refers to Design “F” units.

UNIT

40UH

AIRFLOW

(cfm)

DIMENSIONS (in.) APPROXIMATE

SHIPPING

WEIGHT (lb)

APPROXIMATE

INSTALLED

WEIGHT (lb)

W1 W2 W3

075 750 62 36 31.67 420 405 100 1000 74 48 46.74 500 480 125 1250 86 60 61.81 620 600 150 1500 98 72 78.47 690 670

16.63

LEFT SIDE VIEW

BOTTOM SERVICE PANELS

(UNIT SHOWN

WITH 1.00" END

PANELS)

UV OPEN

CONTROLLER

(OPTIONAL)

(SEE NOTE 3)

21.86 (TYP)

1.00

18.59 (TYP)

5.22

8.08 (TYP - SEE NOTE 2)

FRONT VIEW

(SEE NOTE 2)

BOTTOM VIEW

REMOVABLE PANEL

(EACH END)

1.70

BARSTOCK DISCHARGE GRILLE (OPTIONAL)

MOTOR

2.00

ELECTRICA BOX

NON-FUSED DISCONNECT SWITCH

RETURN AIR LOUVERED PANEL (OPTIONAL)

1.54 (TYP)

(MOUNTING HOLES

TYP-4 PLACES)

Fig. 5 — 40UH Dimensions — 34-in. Deep Units (Digit Code #11 — Option A, B, or C)

Ø.75

1.72

7.50

OUTSIDE AIR

4.50

OPENING

0.92

6.75 (TYP)

TOP VIEW

REAR OUTSIDE AIR OPENING (OPTIONAL)

REAR RETURN AIR OPENING (OPTIONAL)

1.75

5.25

REAR VIEW

2.10 (TYP)

Page 7

16.63

W3 (OPENING)

(OPENING)

(TO OPENING)

LEFT SIDE VIEW

(SIZES 075 TO 150)

BOTTOM VIEW

DOUBLE DEFLECTION DISCHARGE GRILLE (OPTIONAL)

(TYP)

2.10 (TYP)

(TYP)

0.92

4.50

.75 (MOUNTING HOLESTYP-4 PLACES)

6.75 (TYP)

1.00 (TYP)

W7 (TYP-SEE NOTE 2)

3.27 (TYP)

TOP OUTSIDE AIR OPENING (OPTIONAL)

REMOVABLE PANEL (EACH EN

FRONT VIEW

1.72

7.50

5.25

1.75

REAR OUTSIDE AIR OPENING (OPTIONAL)

REAR RETURN AIR OPENING (OPTIONAL)

1.00

(UNIT SHOWN

WITH 1.00"

END PANELS)

RETURN AIR LOUVERED PANEL (OPTIONAL)

MOTOR

ELECTRICAL BOX

NON-FUSED DISCONNECT SWITCH

UV OPEN CONTROLLER (OPTIONAL)

BOTTOM SERVICE PANELS (SEE NOTE 3)

TOP VIEW

(SEE NOTE 2)

LEFT SIDE VIEW

(SIZE 200)

PIPE TUNNEL

4.00

7.50

39.50

43.50

UNIT

40UH

AIRFLOW

(cfm)

DEPTH

(in.)

DIMENSIONS (in.) APPROXIMATE

SHIPPING

WEIGHT (lb)

APPROXIMATE

INSTALLED WEIGHT (lb)

W1 W2 W3 W4 W5 W6 W7 W8

075 750 36 62 36 36 21.86 7.00 2.31 8.00 4.75 500 485 100 1000 36 74 48 48 21.86 7.00 2.31 8.00 4.75 600 580 125 1250 36 86 60 60 21.86 7.00 2.31 8.00 4.75 740 720 150 1500 36 98 72 72 21.86 7.00 2.31 8.00 4.75 830 810 200 2000 40 98 72 72 30.00 10.00 1.44 8.07 4.00 1020 1000

NOTES:

1. All dimensions are in inches.

2. Dimension does not include end panels.

3. Two bottom panels provided for service access.

4. Motor and electrical power input box on right side of unit. Box includes fan speed switch, and non-fused disconnect switch.

5. Connection hand is determined by facing discharge of unit.

6. Drawing refers to design “F” series.

Fig. 6 — 40UH Dimensions — 39

/2-in. and 431/2-in. Deep Unit with Front Discharge Plenum

(Digit Code #11 — Option D or E)

Page 8

16.63

NOTES:

1. All dimensions are in inches.

2. Dimension does not include end panels.

3. Two bottom panels provided for service access.

4. Motor and electrical power input box on right side of unit. Box includes fan speed switch, and non-fused disconnect switch.

5. Connection hand is determined by facing discharge of unit.

6. Drawings refer to design “F” units.

UNIT

40UH

AIRFLOW

(cfm)

DEPTH

(in.)

DIMENSIONS (in.) APPROXIMATE

SHIPPING

WEIGHT (lb)

APPROXIMATE

INSTALLED

WEIGHT (lb)

W1 W2 W3 W4 W5 W6 W7 W8

075 750 40 62 36 36 21.86 7.00 8.00 4.75

17.5

530 515

100 1000 40 74 48 48 21.86 7.00 8.00 4.75

17.5

640 620

125 1250 40 86 60 60 21.86 7.00 8.00 4.75

17.5

790 770

150 1500 40 98 72 72 21.86 7.00 8.00 4.75

17.5

880 860

200 2000 44 98 72 72 30.00 10.00 8.07 4.00

17.4

1050 1030

43.50

LEFT SIDE VIEW

(SIZES 075 TO 150)

4.00

47.50

LEFT SIDE VIEW

(SIZE 200)

7.50

(UNIT SHOWN

END PANELS)

PIPE TUNNEL

UV OPEN CONTROLLER (OPTIONAL)

BOTTOM SERVICE PANELS (SEE NOTE 3)

REMOVABLE PANEL (EACH EN

1.00

WITH 1.00"

W5 (OPENING)

(TYP-SEE

NOTE 2)

FRONT VIEW

(SEE NOTE 2)

(OPENING)

RETURN AIR LOUVERED PANEL (OPTIONAL)

BOTTOM VIEW

TOP OUTSIDE AIR OPENING (OPTIONAL)

W7 (TYP)

MOTOR

ELECTRICAL BOX

NON-FUSED

SCONNECT

DI SWITCH

1.00 (TYP)

(TYP)

3.27 (TYP)

(MOUNTING HOLES-

TYP-4 PLACES)

Fig. 7 — 40UH Dimensions — 43

.75

1.72

7.50

5.25

/2-in. and 471/2-in. Deep Unit with Down Discharge Plenum

(Digit Code #11 — Option F)

0.92

TOP VIEW

REAR OUTSIDE AIR OPENING (OPTIONAL)

REAR RETURN AIR OPENING (OPTIONAL)

REAR VIEW

4.50

(TYP)

6.75 (TYP)

1.75

2.10 (TYP)

Page 9

Step 2 — Make Piping Connections

2-1/2" MIN

3/4"

GALVANIZED PIPE

3/4"

PVC OR COPPER

2-1/2" MIN

1-1/2" MIN

DRAIN PAN

UPPER HOLES

LOWER HOLES

NOTE: Reverse slope by reversing connections on each end of the pan.

UPPER HOLES

LOWER HOLES

Access to piping is available through the access panels at the front, top, or end of the vertical unit (horizontal access from bottom or side). Route piping through the pipe tunnel or the unit’s back panel or floor panel. Metal blank-off panels must be trimmed to complete piping installation. Metal blank-off panels must be retrofitted around the piping to restore installation integrity. All piping connections must be performed by qualified personnel in accordance with local and national codes.

CAUTION

When making solder connections, care must be taken to prevent the dripping of solder or other debris onto the insulation, control wiring, control box, actuators, and DDC (Direct Digital Controls) controller (if so equipped). When using a torch anywhere in the unit, care must be taken to not burn any components.

DRAIN CONNECTIONS Condensate drain connections are located on each end of the

drain pan near the bottom of the unit. Access by removing the end panel. Condensate drain line must be galvanized pipe, PVC or similar plastic pipe. Install drain line in accordance with all applicable codes. Insulate the drain line to prevent sweating. See Fig. 8 for typical drain trap construction.

/4-in. copper tubing,

Fig. 9 — Drain Pan Connection Holes, Inside View

Fig. 8 — Typical Condensate Drain Trap

Condensate

NOTE: Drain pan is sloped toward the connections of the largest coil or toward the connections of the DX (direct expansion) coil. In a unit with 2-row right hand coils and 4-row left-hand coils for example, the drain pan is sloped down to the left-hand side. The uphill connection is sealed with a plug. The downhill field connection is covered with a plastic cap except when the drain pan is stainless steel, then both connections are sealed with a plug. Remove cap (or plug on stainless steel) on the downhill connection. Do not remove the high side drain connection plug. The slope may be reversed in the field by removing the drain pan screws (2 per side), using the opposite set of holes to install the pan, and sealing the uphill connection. See Fig. 9 and 10.

Units with cooling coils require traps to prevent air from entering the condensate fitting and preventing proper drainage. Drain must be sloped downhill from the unit a minimum of ft. Drain must be free and clear at all times. It is not recommended to tie multiple units into one condensate line due to potential

/8-in. per

for overflow.

CAUTION

Insulate drain lines to prevent condensate. Care must be taken to avoid interference with control panel on left side drain. Failure to comply could result in equipment damage.

Fig. 10 — Drain Pan Connection Holes, Outside

View

WATER SUPPLY/RETURN CONNECTIONS

Install piping in accordance with all applicable codes. All piping must be supported separately from coils.

Water supply must be connected so that entering water is on leaving-air side of coil. See the connection labels on the unit to locate the inlet. Coils must be adequately vented to prevent air binding. Be sure valves are in proper operating position and are easily accessible for adjustment.

If coil and valve package connections will be made with a solder joint, care should be taken to ensure that components in the valve package are not subjected to high temperatures which may damage seals or other materials. Many 2-position electric control valves are provided with a manual operating lever. This lever should be in the OPEN position during all soldering operations.

If coil connection is made with a union, the coil side of the union must be prevented from turning (it must be backed up) during tightening. Do not overtighten! Overtightening will distort (egg

shape) the union seal surface and destroy the union.

NOTE: A freezestat is factory-installed when a hot water/steam coil is installed.

STEAM CONNECTIONS

On units with steam heating coils, the maximum steam pressure applied to the unit should never exceed 6 psig. Carrier recommends float and thermostatic ("F&T") type steam traps for best results. However, other styles may work and selection is the responsibility of the customer. Sizing and selection of the steam trap and design of the steam system piping should be done with the recommendation of the steam trap supplier. A

Page 10

vacuum breaker is factory-supplied with the unit ventilator

EQUALIZER

SENSING BULB (CLAMPED TO SUCTION LINE AND INSULATED)

SUCTION LINE

LIQUID LINE

steam coil, and must be field-piped to a location downstream of the trap to allow vacuum relief when the coil is turned off. In all situations, the steam piping connected to the unit should be designed and installed according to good piping practices for steam systems.

DIRECT EXPANSION REFRIGERANT PIPING

Use the condensing unit manufacturer’s recommended line sizes and requirements. Perform leak test using nitrogen. Evacuate and charge per recommended heating, ventilation, and air conditioning (HVAC) procedures and all applicable codes. Insulate suction line after leak test up to the coil section end plate for correct operation and to eliminate sweating. Use refrigerant-grade copper lines only. Units utilizing R-22 refrigerant are NOT to be applied as a heat pump.

See Fig. 11 for refrigerant piping connections with recommended locations for the thermostatic expansion valve (TXV) and sensing bulb. Locate bulb in the horizontal run from approximately the 9:00 to 3:00 position or in a vertical run.

NOTE: A low limit sensing bulb is factory-installed when a DX coil is installed.

Fig. 11 — Typical TXV Installation

NOTE: Follow TXV manufacturer’s instructions.

HYDRONIC COIL PIPING

When all joints are complete, perform hydrostatic test for leaks. Vent all coils at this time. Check interior unit piping for signs of leakage from shipping damage or mishandling. If leaks are found, notify a Carrier representative before initiating any repairs. Release trapped air from system (refer to Step 6 — “Make Final Preparations” on page 31).

sibility of the installer and should be suitable thickness to prevent sweating and with adequate vapor barrier.

To ensure compliance with building codes, restore the structure’s original fire resistance rating by sealing all holes with material carrying the same fire rating as the structure.

CONTROL VALVES

Controls require normally open heating valves. Chilled water valves must be piped normally closed. It is recommended that heating valves fail safe to the open position in all control applications. Valve packages must always be field insulated to prevent sweating. See Fig. 12 for piping recommendations.

Step 3 — Make Electrical Connections

Refer to unit serial plate for required supply voltage, fan and heater amperage and required circuit ampacities. Refer to unit wiring diagram for unit and field wiring. See Tables 2-4 for electrical data.

Access to all electrical connections can be gained through the access panel at the right front side of the unit. See the dimensional drawings Fig. 3-7 for electrical box connections.

The fan motor should never be controlled by any wiring or device other than the factory-supplied switch or thermostat/switch combination unless prior factory authorization is obtained. Fan motor may be temporarily wired for use during construction only with prior factory approval and only in strict accordance with the instructions issued at that time.

All electrical connections should be made by qualified personnel and be in accordance with governing codes and ordinances. Any modification of unit wiring without factory authorization will invalidate all factory warranties and nullify any agency listings. See Fig. 13-23 for typical wiring connections for basic unit without UV Open controls.

Electric heat elements are the open wire type mounted in individual heavy gage galvanized steel frames and suspended in ceramic insulators. Dual capillary type thermal sensing elements, one automatic reset and one manual, is used to protect the unit from overheating in the event of abnormal operation. Automatic reset limit is set at 210°F. The access for the limit switch is located on the opposite end of the fan motor. Manual reset high limit is set at 240°F. The access for the limit switch is located at the same end as the fan motor.

Step 4 — Mount Actuators (Field-Supplied)

Field-supplied actuators must be mounted on 1/2-in. diameter damper shafts.

CAUTION

All water coils must be protected from freezing after initial filling with water. Even if system is drained, unit coils may still have enough remaining water to cause damage when exposed to temperatures below freezing.

Following the hydrostatic test, the installer shall insulate all piping up to the coil section end plate to prevent condensation (sweating) and heat loss. Ensure that factory-provided valve packages are properly insulated. Piping insulation is the respon-

CAUTION

With factory-installed controls provided by others, factory may wire controls and actuator based on the request; however, setting the actuators (switch settings, tightening clamp to damper shaft, torque pre-loading, etc.) is the sole responsibility of the customer. Failure to set the actuator may result in equipment damage.

Page 11

See Note

LEGEND

S—Supply R—Return

Union

NOTE: Factory-supplied vacuum breaker assembly. Field install in vertical orientation with flow arrow up and piping down so that ball seats with gravity. Equalizer line and trap are field supplied and installed.

Fig. 12 — Control Valves

Page 12

Table 2 — Electric Heater Data for Units with PSC Motor

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 17.2 90 21.5 25 3.2

208/1/60

4 22.2 97 27.8 30 4.2 5 27.3 104 34.1 35 5.3 6 32.3 110 40.4 45 6.3 3 19.5 97 24.4 25 4.2

240/1/60

4 25.3 106 31.7 35 5.6 5 31.2 115 39.0 40 7.0 6 37.0 124 46.3 50 8.4 3 16.8 97 21.0 25 4.2 4 21.8 106 27.3 30 5.6 5 26.9 115 33.6 35 7.0 6 31.9 124 39.9 40 8.4 3 10.8 90 13.5 15 3.2 4 15.8 97 19.8 20 4.2 5 19.5 104 24.4 25 5.3

40UV050

(at 500 cfm)

277/1/60

208/3/60

6 19.5 110 24.4 25 6.3 3 12.1 97 15.1 20 4.2

240/3/60

4 17.9 106 22.4 25 5.6 5 22.2 115 27.8 30 7.0 6 22.2 124 27.8 30 8.4 3 6.0 97 7.5 15 4.2

460/3/60

4 8.9 106 11.1 15 5.6 5 11.0 115 13.8 15 7.0 6 11.0 124 13.8 15 8.4 3 23.7 89 29.6 30 4.5

208/1/60

4 30.9 96 38.6 40 6.0 5 38.1 102 47.6 50 7.5 6 45.3 108 56.7 60 9.0 3 27.0 96 33.8 35 6.0

240/1/60

4 35.3 104 44.2 45 8.0 5 43.7 113 54.6 60 10.0 6 52.0 121 65.0 70 12.0 3 23.3 96 29.1 30 6.0 4 30.5 104 38.1 40 8.0 5 37.7 113 47.1 50 10.0 6 44.9 121 56.2 60 12.0 3 14.5 89 18.2 20 4.5 4 21.7 96 27.2 30 6.0 5 27.0 102 33.8 35 7.5

40UV,UH075

(at 750 cfm)

277/1/60

208/3/60

6 27.0 108 33.8 35 9.0 3 16.5 96 20.6 25 6.0

240/3/60

4 24.8 104 31.0 35 8.0 5 30.9 113 38.6 40 10.0 6 30.9 121 38.6 40 12.0 3 8.2 96 10.2 15 6.0

460/3/60

4 12.3 104 15.4 20 8.0 5 15.4 113 19.2 20 10.0 6 15.4 121 19.2 20 12.0

LEGEND

FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

PSC — Permanent Split Capacitor

*Cooling coil must be left-hand coil connections only. NOTES:

1. LAT (leaving air temperature) is at maximum fan speed with entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

4. The PSC motor is not available on unit size 200.

FLA LAT (F) MCA MOCP

TOTAL

CAPACITY (kW)

Page 13

Table 2 — Electric Heater Data for Units with PSC Motor (cont)

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 30.9 89 38.6 40 6.0

208/1/60

4 40.5 95 50.7 60 8.0 5 50.2 102 62.7 70 10.0 6 59.8 108 74.7 80 11.9 3 35.3 96 44.2 45 8.0

240/1/60

4 46.5 104 58.1 60 10.7 5 57.6 112 72.0 80 13.3 6 68.7 121 85.8 90 16.0 3 30.5 96 38.1 40 8.0 4 40.1 104 50.1 60 10.7 5 49.7 112 62.2 70 13.3 6 59.4 121 74.2 80 16.0 3 18.7 89 23.4 25 6.0 4 28.3 95 35.4 40 8.0 5 35.4 102 44.3 45 10.0

40UV,UH100

(at 1000 cfm)

277/1/60

208/3/60

6 35.4 108 44.3 45 11.9 3 21.3 96 26.6 30 8.0

240/3/60

4 32.4 104 40.5 45 10.7 5 40.5 112 50.7 60 13.3 6 40.5 121 50.7 60 16.0 3 10.6 96 13.2 15 8.0

460/3/60

4 16.1 104 20.1 25 10.7 5 20.2 112 25.2 30 13.3 6 20.2 121 25.2 30 16.0 3 38.1 89 47.6 50 7.5

208/1/60

4 50.1 96 62.7 70 10.0 5 62.2 102 77.7 80 12.5 6* 74.2 108 92.8 100 15.0 3 43.7 96 54.6 60 10.0

240/1/60

4 57.6 104 71.9 80 13.3 5 71.4 113 89.3 90 16.7 6* 85.3 121 106.7 110 20.0 3 37.7 96 47.1 50 10.0 4 49.7 104 62.2 70 13.3 5 61.8 113 77.2 80 16.7 6* 73.8 121 92.2 100 20.0 3 22.9 89 28.6 30 7.5 4 34.9 96 43.6 45 10.0 5 43.7 102 54.7 60 12.5

40UV,UH125

(at 1250 cfm)

277/1/60

208/3/60

6* 43.7 108 54.7 60 15.0 3 26.1 96 32.6 35 10.0

240/3/60

4 40.0 104 50.0 50 13.3 5 50.2 113 62.7 70 16.7 6* 50.2 121 62.7 70 20.0 3 13.0 96 16.2 20 10.0

460/3/60

4 19.9 104 24.9 25 13.3 5 25.0 113 31.3 35 16.7 6* 25.0 121 31.3 35 20.0

LEGEND

FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

PSC — Permanent Split Capacitor

*Cooling coil must be left-hand coil connections only. NOTES:

1. LAT (leaving air temperature) is at maximum fan speed with

entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

4. The PSC motor is not available on unit size 200.

FLA LAT (F) MCA MOCP

TOTAL

CAPACITY (kW)

Page 14

Table 2 — Electric Heater Data for Units with PSC Motor (cont)

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 45.3 89 56.7 60 9.0

208/1/60

4 59.8 96 74.7 80 12.0 5 74.2 102 92.8 100 15.0 6* 88.7 108 110.8 125 18.0 3 52.0 96 65.0 70 12.0

240/1/60

4 68.7 104 85.8 90 16.0 5 85.3 113 106.7 110 20.0 6————— 3 44.9 96 56.2 60 12.0 4 59.4 104 74.2 80 16.0 5 73.8 113 92.3 100 20.0 6————— 3 27.0 89 33.8 35 9.0 4 41.5 96 51.9 60 12.0 5 52.1 102 65.1 70 15.0

40UV,UH150

(at 1500 cfm)

277/1/60

208/3/60

6* 52.1 108 65.1 70 18.0 3 30.9 96 38.6 40 12.0

240/3/60

4 47.6 104 59.5 60 16.0 5 59.8 113 74.8 80 20.0 6* 59.8 121 74.8 80 24.0 3 15.4 96 19.2 20 12.0

460/3/60

4 23.7 104 29.6 30 16.0 5 29.8 113 37.3 40 20.0 6* 29.8 121 37.3 40 24.0

LEGEND

FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

PSC — Permanent Split Capacitor

FLA LAT (F) MCA MOCP

TOTAL

CAPACITY (kW)

NOTES:

1. LAT (leaving air temperature) is at maximum fan speed with entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

4. The PSC motor is not available on unit size 200.

*Cooling coil must be left-hand coil connections only.

Page 15

Table 3 — Electric Heater Data for Units with ECM Motor

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 16.5 90 20.6 25 3.2

208/1/60

4 21.5 97 26.9 30 4.2 5 26.6 104 33.2 35 5.3 6 31.6 110 39.5 40 6.3 3 18.8 97 23.5 25 4.2

240/1/60

4 24.6 106 30.8 35 5.6 5 30.5 115 38.1 40 7.0 6 36.3 124 45.4 50 8.4 3 16.3 97 20.3 25 4.2 4 21.3 106 26.6 30 5.6 5 26.4 115 33.0 35 7.0 6 31.4 124 39.3 40 8.4 3 10.1 90 12.6 15 3.2 4 15.1 97 18.9 20 4.2 5 18.8 104 23.5 25 5.3

40UV050

(at 500 cfm)

277/1/60

208/3/60

6 18.8 110 23.5 25 6.3 3 11.4 97 14.3 15 4.2

240/3/60

4 17.2 106 21.6 25 5.6 5 21.5 115 26.9 30 7.0 6 21.5 124 26.9 30 8.4 3 5.4 97 6.8 15 4.2

460/3/60

4 8.3 106 10.4 15 5.6 5 10.5 115 13.1 15 7.0 6 10.5 124 13.1 15 8.4 3 24.0 89 30.0 30 4.5

208/1/60

4 31.2 96 39.0 40 6.0 5 38.4 102 48.0 50 7.5 6 45.6 108 57.0 60 9.0 3 27.3 96 34.1 35 6.0

240/1/60

4 35.6 104 44.5 45 8.0 5 44.0 113 55.0 60 10.0 6 52.3 121 65.4 70 12.0 3 23.7 96 29.6 30 6.0 4 30.9 104 38.6 40 8.0 5 38.1 113 47.6 50 10.0 6 45.3 121 56.7 60 12.0 3 14.8 89 18.5 20 4.5 4 22.0 96 27.6 30 6.0 5 27.3 102 34.2 35 7.5

40UV,UH075

(at 750 cfm)

277/1/60

208/3/60

6 27.3 108 34.2 35 9.0 3 16.8 96 20.9 25 6.0

240/3/60

4 25.1 104 31.4 35 8.0 5 31.2 113 39.0 40 10.0 6 31.2 121 39.0 40 12.0 3 8.2 96 10.2 15 6.0

460/3/60

4 12.3 104 15.4 20 8.0 5 15.4 113 19.2 20 10.0 6 15.4 121 19.2 20 12.0

LEGEND *Cooling coil must be left-hand coil connections only.

ECM — Electronically Commutated Motor FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

FLA LAT (F) MCA MOCP

NOTES:

1. LAT (leaving-air temperature) is at maximum fan speed with entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

TOTAL

CAPACITY (kW)

Page 16

Table 3 — Electric Heater Data for Units with ECM Motor (cont)

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 31.5 89 39.4 40 6.0

208/1/60

4 41.1 95 51.4 60 8.0 5 50.8 102 63.4 70 10.0 6 60.4 108 75.5 80 11.9 3 35.9 96 44.9 45 8.0

240/1/60

4 47.1 104 58.8 60 10.7 5 58.2 112 72.7 80 13.3 6 69.3 121 86.6 90 16.0 3 31.2 96 39.0 40 8.0 4 40.8 104 51.0 60 10.7 5 50.4 112 63.1 70 13.3 6 60.1 121 75.1 80 16.0 3 19.3 89 24.1 25 6.0 4 28.9 95 36.2 40 8.0 5 36.0 102 45.0 50 10.0

40UV,UH100 (at 1000 cfm)

277/1/60

208/3/60

6 36.0 108 45.0 50 11.9 3 21.9 96 27.3 30 8.0

240/3/60

4 33.0 104 41.2 45 10.7 5 41.1 112 51.4 60 13.3 6 41.1 121 51.4 60 16.0 3 10.6 96 13.3 15 8.0

460/3/60

4 16.2 104 20.2 25 10.7 5 20.3 112 25.3 30 13.3 6 20.3 121 25.3 30 16.0 3 39.4 89 49.3 50 7.5

208/1/60

4 51.5 96 64.3 70 10.0 5 63.5 102 79.4 80 12.5 6* 75.5 108 94.4 100 15.0 3 45.0 96 56.2 60 10.0

240/1/60

4 58.9 104 73.6 80 13.3 5 72.7 113 90.9 100 16.7 6* 86.6 121 108.3 110 20.0 3 39.0 96 48.7 50 10.0 4 51.0 104 63.8 70 13.3 5 63.1 113 78.8 80 16.7 6* 75.1 121 93.9 100 20.0 3 24.2 89 30.2 35 7.5 4 36.2 96 45.3 50 10.0 5 45.0 102 56.3 60 12.5

40UV,UH125 (at 1250 cfm)

277/1/60

208/3/60

6* 45.0 108 56.3 60 15.0 3 27.4 96 34.2 35 10.0

240/3/60

4 41.3 104 51.6 60 13.3 5 51.5 113 64.3 70 16.7 6* 51.5 121 64.3 70 20.0 3 13.2 96 16.5 20 10.0

460/3/60

4 20.2 104 25.2 30 13.3 5 25.3 113 31.6 35 16.7 6* 25.3 121 31.6 35 20.0

LEGEND

ECM — Electronically Commutated Motor FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

*Cooling coil must be left-hand coil connections only NOTES:

1. LAT (leaving air temperature) is at maximum fan speed with entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

FLA LAT (F) MCA MOCP

TOTAL

CAPACITY (kW)

Page 17

Table 3 — Electric Heater Data for Units with ECM Motor (cont)

UNIT HP

NOMINAL

V/Ph/Hz

NUMBER OF

ELEMENTS

3 46.7 89 58.3 60 9.0

208/1/60

4 61.1 96 76.4 80 12.0 5 75.6 102 94.4 100 15.0 6* 90.0 108 112.5 125 18.0 3 53.3 96 66.6 70 12.0

240/1/60

4 70.0 104 87.5 90 16.0 5 86.6 113 108.3 110 20.0 6————— 3 46.2 96 57.8 60 12.0 4 60.7 104 75.8 80 16.0 5 75.1 113 93.9 100 20.0 6————— 3 28.3 89 35.4 40 9.0 4 42.8 96 53.5 60 12.0 5 53.4 102 66.7 70 15.0

40UV,UH150

(at 1500 cfm)

277/1/60

208/3/60

6* 53.4 108 66.7 70 18.0 3 32.2 96 40.3 45 12.0

240/3/60

4 48.9 104 61.1 70 16.0 5 61.1 113 76.4 80 20.0 6* 61.1 121 76.4 80 24.0 3 15.6 96 19.5 20 12.0

460/3/60

4 24.0 104 30.0 30 16.0 5 30.1 113 37.6 40 20.0 6* 30.1 121 37.6 40 24.0 3 50.1 84 62.7 70 9.0

208/1/60

4 64.6 89 80.7 90 12.0 5 79.0 94 98.8 100 15.0 6* 93.5 99 116.8 125 18.0 3 56.8 89 71.0 80 12.0

240/1/60

4 73.5 96 91.8 100 16.0 5 90.1 102 112.7 125 20.0 6————— 3 48.8 89 61.0 70 12.0 4 63.3 96 79.1 80 16.0 5 77.7 102 97.1 100 20.0 6————— 3 31.8 84 39.8 40 9.0 4 46.3 89 57.9 60 12.0 5 56.9 94 71.1 80 15.0

40UH200

(at 2000 cfm)

277/1/60

208/3/60

6* 56.9 99 71.1 80 18.0 3 35.7 89 44.6 45 12.0

240/3/60

4 52.4 96 65.5 70 16.0 5 64.6 102 80.8 90 20.0 6* 64.6 108 80.8 90 24.0 3 16.9 89 21.1 25 12.0

460/3/60

4 25.2 96 31.5 35 16.0 5 31.3 102 39.1 40 20.0 6* 31.3 108 39.1 40 24.0

LEGEND

ECM — Electronically Commutated Motor FLA — Full Load Amps LAT — Leaving-Air Temperature at 70°F Entering-Air

MCA — Unit Minimum Circuit Ampacity MOCP — Maximum Overcurrent Protection (Maximum Fuse Size

Temperature

or Circuit Breaker Amps)

FLA LAT (F) MCA MOCP

TOTAL

CAPACITY (kW)

*Cooling coil must be left-hand coil connections only. NOTES:

1. LAT (leaving air temperature) is at maximum fan speed with

entering air temperature at 70°F.

2. Face and bypass units are available only with 3 elements.

3. Electric heat is available in the reheat only position.

Page 18

Table 4 — Motor Data

PSC Motor Data

UNIT 40UV,UH SIZE MOTOR Hp VOLTAGE FLA MCA MOP (Amps)

115 3.7 4.6 8.3 15

050*

208/230 2.0 2.5 4.5 15

265 1.6 2.0 3.6 15 115 3.7 4.6 8.3 15

075

208/230 2.0 2.5 4.5 15

265 1.6 2.0 3.6 15 115 3.7 4.6 8.3 15

100

208/230 2.0 2.5 4.5 15

265 1.6 2.0 3.6 15 115 3.7 4.6 8.3 15

125

208/230 2.0 2.5 4.5 15

265 1.6 2.0 3.6 15 115 3.7 4.6 8.3 15

150

208/230 2.0 2.5 4.5 15

265 1.6 2.0 3.6 15

ECM Motor Data

UNIT 40UV,UH SIZE MOTOR Hp VOLTAGE FLA MCA MOP (Amps)

050*

075

100

125

150

200†

LEGEND

ECM — Electronically Commutated Motor FLA — Full Load Amps MCA — Minimum Circuit Amps MOP — Maximum Overload Protection PSC — Permanent Split Capacitor

*Available in vertical configuration only.

†Available in horizontal configuration only. NOTE: The PSC motor is not available on unit size 200.

115 1.4 1.8 3.1 15

208/230 1.3 1.6 2.9 15

265 1.1 1.4 2.6 15 115 3.7 4.6 8.3 15

208/230 2.3 2.9 5.1 15

265 2.0 2.5 4.5 15 115 4.0 5.0 9.1 15

208/230 2.6 3.2 5.8 15

265 2.3 2.9 5.1 15 115 4.7 5.9 10.6 15

208/230 3.3 4.1 7.4 15

265 2.9 3.6 6.6 15 115 4.7 5.9 10.6 15

208/230 3.3 4.1 7.4 15

265 2.9 3.6 6.6 15 115 9.6 12.0 21.6 20

208/230 6.8 8.5 15.3 15

265 5.5 6.9 12.4 15

MAX FUSE SIZE

(Amps)

MAX FUSE SIZE

(Amps)

Page 19

SW2

See Tap

BLK

RED

WHT

FAN

MOTOR

SW1

WHT/110

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES.

GND

RED BLK

WHT

123

LLT

WHT

BLK/104

BLK/100

BLK/103

BLK/104

SEE NOTE 2

DISC1

GRN

TRAN3

SEE NOTE 3

MAX

LOW

HIGH

LLR

FIELD CONNECTED TO

REMOTE CONDENSER.

LLR INSTALLED ONLY ON

UNITS WITH DX COILS.

Select Drawing

NOTES:

1. Make electrical installation in accordance with job

diagram, and in compliance with national and local

electrical codes.

2. Low limit thermostat (LLT) is installed on all units with

water coils.

3. Unused transformer leads are separately insulated.

LEGEND

DISC — Disconnect Switch

DX — Direct Expansion

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

PSC — Permanent Split Capacitor

SW — Switch

TRAN — Transformer

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Fig. 13 — 115-v PSC Motor without Controls

Page 20

SW2

SEE TAP

WHT

SW1

RED

BLK/101

BLK/108

BLK/102

FU1

GND

BLK/RED

WHT

123

LLT

WHT

BLK/104

BLK/100

BLK/103

BLK/104

SEE NOTE 2

DISC1

GRN

TRAN3

SEE NOTE 3

BLK/106 BLK/107

FU2

BLK/105

BLK/108

SEE NOTE 4

BLK/YEL208V

240V

USE COPPER SUPPLY WIRES.

BLK

RED

FAN

MOTOR

BLK

MAX

LOW

HIGH

LLR

FIELD CONNECTED TO

REMOTE CONDENSER.

LLR INSTALLED ONLY ON

UNITS WITH DX COILS.

SELECT DRAWING

NOTES:

1. Make electrical installation in accordance

with job diagram, and in compliance with

national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all

units with water coils.

3. Unused transformer leads are separately

insulated.

4. Transformer shown is wired for 240-v. The

208-v units are wired to 208-v tap.

LEGEND

DISC — Disconnect Switch

DX — Direct Expansion

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

PSC — Permanent Split Capacitor

SW — Switch

TRAN — Transformer

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Fig. 14 — 208/230-v PSC Motor without Controls

Page 21

SW2

SEE TAP

SW1

WHT/110

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES.

GND

RED

WHT

BLK/100

BLK/103

DISC1

GRN

TRAN3

SEE NOTE 3

120VAC

BLK/109

WHT/111

TRAN1

BLK/109

FR1

RED/118

BLK

RED

WHT

FAN

MOTOR

BLK

MAX

LOW

HIGH

RED/118

24 VAC

RED/514

BRN/504

3 1

FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

432

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/513

SELECT DRAWING

GRN

NOTES:

1. Make electrical installation in accordance with job diagram, and in compliance

with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Unused transformer leads are separately insulated.

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

FR — Fan Relay

FU — Fuse

GND — Ground

PSC — Permanent Split Capacitor

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Fig. 15 — 115-v PSC Motor with DDC Ready Option

Page 22

SW2

SEE TAP

SW1

WHT/110

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES.

GND

RED

WHT

BLK/100

BLK/103

DISC1

GRN

TRAN3

SEE NOTE 3

120VAC

BLK/109

WHT/111

TRAN1

BLK/109

FR1

RED/118

BLK

RED

WHT

FAN

MOTOR

BLK

MAX

LOW

HIGH

RED/118

24 VAC

RED/514

BRN/504

SELECT DRAWING

GRN

3 1FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

472

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/505

DX1

BLU/508

BLU/507

FIELD CONNECTED TO

REMOTE COMPRESSOR/

CONDENSER UNIT

3 1DX1

BLU/517

LLR

ORN/518

GRA/519

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

DX — Direct Expansion

FR — Fan Relay

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

PSC — Permanent Split Capacitor

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Unused transformer leads are separately insulated.

Fig. 16 — 115-v PSC Motor with DDC Ready Option and DX Cooling

Page 23

WHT

BLK/103

BLK/109

TRAN1

BLK/109

FR1

BLK/RED

SW2

SEE TAP

RED

BLK/RED

WHT

TRAN3

SEE NOTE 3

SEE NOTE 4

BLK/YEL208V

240V

SEE NOTE 4

SW1

BLK/101

BLK/108

BLK/102

FU1

GND

BLK/100

DISC1

GRN

BLK/106 BLK/107

FU2

BLK/105

USE COPPER SUPPLY WIRES.

240 V

208 V

BLK/110 BLK/108

COM

SEE NOTE 4

BLK

RED

WHT

FAN

MOTOR

BLK

MAX

LOW

HIGH

24 VAC

SELECT DRAWING

RED/514

BRN/504

3 1

FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

432

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/513

GRN

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

FR — Fan Relay

FU — Fuse

GND — Ground

PSC — Permanent Split Capacitor

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Unused transformer leads are separately insulated.

4. Transformer is wired for 240-v. The 208-v units are wired to 208-v tap.

Fig. 17 — 208/230-v PSC Motor with DDC Ready Option

Page 24

BLK/104

LLT

(SEE NOTE 2)

NOTE 2

24 VAC

RED/502

TRAN1

WHT/110

SW1

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES

115 V

GND

BLK/100

DISC1

GRN

BLK/109

120VAC

BLK/109

WHT/111WHT/111

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

BLU/EC9

GRN

WHT

BLK

ORN/EC2

3 WIRE

POWER

CABLE

ECM

16 PIN

RECEPTACLE

ON MOTOR

5 PIN

RECEPTACLE

ON MOTOR

BRN

SW2

RED/EC12

YEL/EC5

SEE NOTE 3

BRN/EC1

MAX

LOW

HIGH

BLK/103

LLR

RED/503

RED/502

WHT

BLK

GRN

LEGEND

DISC — Disconnect Switch

DX — Direct Expansion

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in com-

pliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, MAX

are for field use with increased ESP.

Fig. 18 — 115-v ECM Motor without Controls

Page 25

BLK/104

LLT

NOTE 2

RED/502

BLK/109

BLK/108

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

BLU/EC9

GRN

WHT

BLK

ORN/EC2

3 WIRE

POWER

CABLE

ECM

16 PIN

RECE PTACLE

ON MOTOR

5 PIN

RECE PTACLE

ON MOTOR

BRN

SW2

RED/EC12

YEL/EC5

SEE NOTE 3

BRN/EC1

MAX

LOW

HIGH

BLK/103

SW1

BLK/101

BLK/108

BLK/102

FU1

208/230V

GND

BLK/100

DISC1

GRN

BLK/106

BLK/107

FU2

BLK/105

24VAC

TRAN1

240 V

208 V

COM

SEE NOTE 4

LLR

FIELD CONNECTED TO

REMOTE CONDENSER.

LLR INSTALLED O NLY ON

UNITS WITH DX COILS.

WHT

RED/502RED/503

GRN

BLK

BLK/109

(SEE NOTE 2)

NOTES:

1. Make electrical installation in accordance with job diagram, and in compliance with national and

local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, MAX are for field use with ESP.

4. Transformers shown wired for 240-v. However, transformers are factory-wired to match the volt-

age listed on the unit nameplate.

LEGEND

DISC — Disconnect Switch

DX — Direct Expansion

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

Fig. 19 — 208/230-v ECM Motor without Controls

Page 26

24 VAC

GRN

RED/501

TRAN1

BRN/504WHT/110

WHT

SW1

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES.

115 V

GND

BLK/100

BLK

DISC1

GRN

BLK/109

120VAC

BLK/109

WHT/111WHT/111

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

BLU/EC9

GRN

WHT

BLK

ORN/EC2

3 WIRE

POWER

CABLE

EC FAN

MOTOR

16 PIN

RECEPTACLE

ON MOTOR

5 PIN

RECEPTACLE

ON MOTOR

BRN

SW2

RED/EC12

YEL/EC5

SEE NOTE 3

FR1

RED/501

3 1

FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

432

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/505

BRN/EC1

RED/514

RED/502RED/503

MAX

LOW

HIGH

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

EC — Electronically Commutated

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FR — Fan Relay

FU — Fuse

GND — Ground

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, and

MAX are for field use with increased ESP.

Fig. 20 — 115-v ECM Motor with DDC Ready Controls

Page 27

24 VAC

GRN

RED/501

TRAN1

BRN/504WHT/110

WHT

SW1

BLK/101

WHT/110

BLK/102

FU1

USE COPPER SUPPLY WIRES.

115 V

GND

BLK/100

BLK

DISC1

GRN

BLK/109

120VAC

BLK/109

WHT/111WHT/111

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

BLU/EC9

GRN

WHT

BLK

ORN/EC2

3 WIRE

POWER

CABLE

EC FAN

MOTOR

16 PIN

RECEPTACLE

ON MOTOR

5 PIN

RECEPTACLE

ON MOTOR

BRN

SW2

RED/EC12

YEL/EC5

SEE NOTE 3

FR1

RED/501

3 1

FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

472

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/505

BRN/EC1

RED/511

RED/502RED/503

MAX

LOW

HIGH

DX1

BLU/508

BLU/507

FIELD CONNECTED TO

REMOTE COMPRESSOR/

CONDENSER UNIT

3 1DX1

BLU/517

BRN/506

LLR

ORN/518

GRA/519

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

DX — Direct Expansion

EC — Electronically Commutated

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FR — Fan Relay

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, and

MAX are for field use with increased ESP.

Fig. 21 — 15-v ECM Motor with DDC Ready Controls and DX Cooling

Page 28

RED/501

901/KLB901/KLB

BLK/108

SW1

BLK/101

BLK/108

BLK/102

FU1

208/230V

GND

BLK/100

DISC1

GRN

BLK/106 BLK/107

FU2

BLK/105

USE COPPER SUPPLY WIRES.

24VAC

TRAN1

240 V

208 V

GRN

COM

SEE NOTE 4

WHT

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

BLU/EC9

GRN

WHT

BLK

ORN/EC2

3 WIRE

POWER

CABLE

BRN

SW2

RED/EC12

YEL/EC5

SEE NOTE 3

FR1

RED/501

3 1

FR1

215/KLB405/NRB

BRN/513

RED/514

CBC1

432

SEE CONTROL DIAGRAM

FOR HARNESS WIRING

BRN/505

BRN/EC1

RED/514

RED/502RED/503

MAX

LOW

HIGH

EC FAN

MOTOR

16 PIN

RECEPTACLE

ON MOTOR

5 PIN

RECEPTACLE

ON MOTOR

BLK

BRN/504

LEGEND

CBC — Control Box Connection

DDC — Direct Digital Controls

DISC — Disconnect Switch

EC — Electronically Commutated

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FR — Fan Relay

FU — Fuse

GND — Ground

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, and

MAX are for field use with increased ESP.

4. Transformers shown wired for 240-v; however, transformers are nor-

mally factory wired to match voltage listed on the unit nameplate.

Fig. 22 — 208/230-v ECM Motor with DDC Ready Controls

Page 29

NEUTRAL

EVO/ECM-ACU

Signal

Common

RPM

24Vac

NEUTRAL

24Vac

BLK/109

SW1

BLK/101 BLK/102

FU1

115 V

GND

BLK/100

DISC1

GRN

USE COPPER SUPPLY WIRES.

24VAC120VAC

BLK/109

WHT/111

GRN

RED/502

TRAN1

WHT/110

RED/503

BRN/504

WHT/110

WHT

WHT/111

GRN

WHT

BLK

3 WIRE

POWER

CABLE

BRN

BRN/501

BLK/103

BLK/104

BLK/506

WHT/505

BLK

BLK/104

LLT*

321

NOTE 2

RED/503

BLK/506

WHT/505

BRN/504

BLK

WHT WHT

BLK

RED

BRN

BRN/501

RED/507

NOTE: Wires above are insulated

after unit run-test

24V-Hot

24V-Neutral

+ 2-10Vdc Signal

Signal Common

A signal < 1 Vdc

will stop the fan.

LLR*

FIELD CONNECTED TO

REMOTE CONDENSER.

LLR INSTALLED ONLY ON

UNITS WITH DX COILS.

LOW

MED

HIGH

MAX

24Vac

SPEED BOARD

YEL/EC5

SEE NOTE 3

16 PIN

RECEPTACLE

ON MOTOR

5 PIN

RECEPTACLE

ON MOTOR

EC FAN

MOTOR

YEL

RED/507

RED/508

Optional Field Provided and

Installed Fan Relay, Break

wire RED/507 and connect as

shown.

Do NOT break motor

power wiring to start/stop

the fan motor as this will

significantly decrease

the motor life. Break the

24V control wiring as

shown (upper right

corner of drawing) to

start/stop the motor.

LEGEND

DISC — Disconnect Switch

DX — Direct Expansion

ECM — Electronically Commutated Motor

ESP — External Static Pressure

FR — Fan Relay

FU — Fuse

GND — Ground

LLR — DX Low Limit Switch

LLT — Water Coil Low Limit Thermostat

SW — Switch

TRAN — Transformer

Harness Connection

Connection Point Splice

Splice Terminal Connection

Component Tie Point

Optional Wiring

Factory Wiring

Chassis Ground

Earth Ground

*LLT will be replaced by LLR on units with DX coils.

NOTES:

1. Make electrical installation in accordance with job diagram, and in

compliance with national and local electrical codes.

2. Low limit thermostat (LLT) is installed on all units with water coils.

3. Wire YEL/EC5 factory connected to LOW. Positions MED, HIGH, and

MAX are for field use with increased ESP.

Fig. 23 — 115-v Variable Speed ECM Motor without Controls

Page 30

Step 5 — Make Duct Connections

If applicable, install all ductwork to and from unit in accordance with all applicable codes. Duct construction must allow unit to operate within duct external static pressure limits as shown on job submittals and in Tables 5 and 6. Duct opening should be the same size as the unit. For 40UH units ducted to multiple openings, allow adequate straight duct, as shown below, immediately after the unit.

40UH 075 100 125 150 200

Minimum Straight Duct Required (Length in inches)

45 52 58 63 75

CAUTION

Units designed to operate with ductwork may be damaged if operated without intended ductwork attached.

Ensure that units ducted to multiple openings have sufficient straight duct immediately after the unit.

Table 5 — Unit Ventilator Airflow — PSC Motor*

FACTORY SETTINGS — CHILLED WATER COIL APPLICATIONS

Unit Speed

40UV050

40UV,UH075

40UV,UH100

40UV,UH125

40UV,UH150

Max 522 510 497 485 490 489 457

High 503 490 476 464 473 476 444

Low 458 449 440 425 452 455 430 Max 806 778 750 747 766 732 697

High 682 664 645 629 621 596 570

Low 569 554 539 527 533 514 495 Max 1064 1033 1001 1013 973 980 967

High 662 659 655 642 763 740 717

Low 530 519 507 503 498 501 504 Max 1295 1285 1215 1218 1239 1250 1175

High 899 930 876 865 852 846 846

Low 568 616 597 570 568 558 573 Max 1542 1480 1500 1484 1468 1482 1374

High 1071 1068 1065 1034 1033 1031 1013

Low 812 801 790 881 848 842 799

1-row 2-row 3-row 4-row 5-row 6-row 7-row

Units provided with outside air must utilize the low-temperature safety switch to prevent coil freeze-up.

Insulate all ductwork as required. Use flexible connections to minimize duct-to-unit alignment problems and noise transmission where specified.

Install ductwork, grilles, and plenums so that they do not restrict access to filter.

Cut openings for supply and return air grilles, thermostats, and switch plates where specified on job drawings. Be careful not to cut wires, piping, or structural supports. Use a steel thermostat shield ring to protect drywall from thermostat wiring where applicable.

Prevent dust and debris from settling in unit. If wall finish or color is to be applied by spraying, cover all openings to prevent spray from entering unit.

Approximate Air Delivery (Cfm)

FACTORY SETTINGS — ELECTRIC HEAT/DX COIL APPLICATIONS

Unit Speed

Max 522 510 497 485 490 489 457

40UV050

40UV,UH075

40UV,UH100

40UV,UH125

40UV,UH150

LEGEND

CW — Chilled Water Applications DX — Direct Expansion HW — Hot Water PSC — Permanent Split Capacitor

*Standard on sizes 050-150. †DX cooling applications are only available in 4-row cooling configuration.

High 503 490 476 464 452 455 430

Low 458 449 440 425 410 414 406 Max 806 778 750 747 766 732 697

High 682 664 645 629 621 596 570

Low 569 554 539 527 533 514 495 Max 1064 1033 1001 1013 973 980 967

High 794 788 782 773 857 834 810

Low 662 659 655 642 628 620 611 Max 1295 1285 1215 1218 1239 1250 1175

High 1055 1040 1024 995 1099 1091 1052

Low 738 767 732 719 987 986 964 Max 1542 1480 1500 1484 1468 1482 1374

High 1285 1257 1229 1248 1246 1239 1199

Low 934 928 922 901 1033 1031 1013

1-row 2-row 3-row 4-row 5-row 6-row 7-row

Approximate Air Delivery (cfm)

NOTE: Use the table below to determine the heating and cooling coil combinations available with PSC motor operation.

COOLING COIL

5 Rows CW 1 or 2 rows N/A 3 elements

4 Rows CW or DX† 3 rows 1 or 2 rows 4 elements

3 Rows CW 4 rows 1 or 2 rows 5 or 6 elements

HW Steam Electric

HEATING COIL

Page 31

Table 6 — Unit Ventilator Airflow — ECM Airflow

APPROXIMATE AIR DELIVERY (Cfm)

UNIT SIZE

40UV050

40UV,UH075

40UV,UH100

40UV,UH125

40UV,UH150

40UH200

LEGEND NOTES:

3-4EH/DX — Direct Expansion Coil Applications with 3 to

5-6EH — 5 to 6 Elements of Electric Heat CW — Chilled Water Applications ECM — Electronically Commutated Motor ESP — External Static Pressure

MOTOR

4 Elements of Electric Heat

COIL TYPE

CW 499 336 248 — — — — — — — — —

3-4EH/DX 499 419 336 — — — — — — — — —

5-6EH 491 380 324 — — — — — — — — —

CW 747 484 346 753 548 432 752 530 427 751 541 386

3-4EH/DX 747 644 498 753 609 472 752 612 470 751 618 498

5-6EH 755 645 583 746 598 539 755 585 554 765 610 542

CW 997 703 505 987 693 543 1012 663 483 994 692 480

3-4EH/DX 997 853 615 987 850 639 1012 823 626 994 819 618

5-6EH 1016 819 719 1002 851 709 1024 798 787 1024 820 734

CW 1266 880 657 1239 905 609 1235 898 676 1231 898 627

3-4EH/DX 1266 1023 769 1239 1055 758 1235 1037 765 1231 1010 778

5-6EH 1259 1049 897 1239 995 888 1226 995 888 1253 994 919

CW 1503 1033 775 1479 1046 712 1494 1020 770 1486 1075 737

3-4EH/DX 1503 1246 956 1479 1216 965 1494 1209 927 1486 1222 917

5-6EH 1517 1222 1068 1490 1206 1087 1498 1159 1120 1503 1188 1074

ALL 2014 1384 1023 1981 1386 971 1965 1385 997 1814 1354 993

Low Position

(0.0 in. wg)

Max High Low Max High Low Max High Low Max High Low

ESP Speed Board Position

Med Position

(0.10 in. wg)

1. Factory default is Low Position.

2. Med, High, and Max positions are field settings.

High Position

(0.25 in. wg)

Max Position

(0.45 in. wg)

Step 6 — Make Final Preparations

1. Turn power off (lock out and tag electrical disconnect).

2. Install thermostats and perform any other final wiring as applicable.

3. Clean dirt, dust, and other construction debris from unit interior. Be sure to check fan wheel and housing.

4. Rotate fan wheel by hand to be sure it is free and does not rub on housing.

5. Be sure drain line is clear and is properly and securely positioned. Pour water into drain to check operation.

6. Vent all air from unit coil and related piping. The coil is provided with a Schrader or screw-type manual air vent on the return manifold to release air from the coil.

NOTE: This vent is not adequate for removing air from the building piping system. Customer must provide for venting of the piping system.

a. Pressurize the building piping system with water.

Vent trapped air at system vents.

b. Schrader type vent: Remove cap. Depress valve at

coil vent until air is expelled from the unit. Release valve. Re-install cap.

c. Screw type vent: Back out manual setscrew until air

is expelled. Re-tighten setscrew.

d. Automatic type vent: Trapped air will be vented

automatically. Vent releases air slowly, usually dripping water into the drain pan in the process.

Make sure all service valves are open and that motorized control valves, if supplied, are set for automatic operation.

7. Check all control valves in the system for proper operation in accordance with valve manufacturer’s instructions.

8. Install filter in frame at front of coil. If field-supplied filters are used, be sure size is correct. See Table 1 for filter data.

9. Ensure all panels and filters are installed before checking fan operation. Turn on unit power. Check fan and motor operation.

IMPORTANT: Do not start up or operate unit without filter and panels installed. Be sure filter and unit interior are clean.

START-UP

Start-up procedures vary depending on time of year (summer or winter) and building characteristics (new building/old building, occupied/unoccupied, etc.). All building windows and door should be closed before starting the unit. Close the unit’s outdoor air dampers. Bathroom and kitchen exhaust fans should be off.

Start-up in the cooling mode requires proper care to avoid condensation problems. Condensation forms on surfaces that are colder than the dew point of the surrounding air. If a unit is started and is piped with low-temperature chilled water in a hot, humid atmosphere, condensation will form on many parts of the unit. In order to avoid excessive condensation, higher temperature water should initially be used (approximately 65°F to 70°F), reduce the chilled water flow rate (GPM) and set the fan to high speed for maximum airflow.

As the building temperature drops, the chilled water temperature can be gradually reduced until it reaches 50°F. At this point the outside-air damper can be opened to take in minimum outside air. When the chilled water temperature is reduced to its design point, the exhaust fans can be turned on.

Maximum entering water temperature is 180°F, unless nameplate indicates 200°F.

CAUTION

If unit is marked for 200°F maximum entering water temperature, customer must ensure that water vaporization does not occur, especially at higher elevations when entering water temperatures are greater than 190°F.

Page 32

CAUTION

Ensure that the unit is protected against freezing conditions. If locking quadrant manual damper operator is provided, set to desired position. If damper actuator is provided, ensure that actuator opens the damper when the fan turns on, and closes when the fan stops.

SERVICE

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

Periodic Maintenance Checklist

Monthly

• Inspect air filter. Replace any filters.

• Inspect drain pan and clean if necessary.

Ye a rl y

• Inspect and clean coils.

• Inspect fan wheels and housing for damage. Ensure that wheels move freely by hand.

• Clean and tighten all electrical connections.

Preventing Excessive Condensation on Unit

Excessive condensation can be caused by running chilled water through a unit with the unit fan off. If fan cycling is used, a water flow control valve should be installed to shut off the water when the fan stops.

Other methods of control which avoid condensation problems are as follows:

1. If condensation is forming on the unit, verify the chilled water valve is closing off tightly. Dirt or debris may prevent the valve from closing completely.

2. Continuous fan operation with motorized chilled water valve controlled by a thermostat.

3. Continuous fan operation with thermostat control to switch fan from high to low speed (instead of off).

Check Drain

Check drain pan, drain line, and trap at start of each cooling season. A standard type pipe cleaner for to be sure pipe is clear of obstruction so that condensate is carried away. Check the drain line at filter cleaning time during the cooling season. Be sure that debris has not fallen into unit through supply air grille.

/4-in. ID pipe can be used

Fan Motor Bearings

Standard motors are permanent split capacitor, which are equipped with permanently sealed and lubricated bearings. No lubrication is required unless special motors have been supplied or unusual operating conditions exist.

Fan Shaft Ball Bearing

The mid and inboard bearings are permanently sealed and lubricated. No additional maintenance is required. The end bearings must be lubricated at the start of each cooling and heating season. Add 5 to 10 drops of SAE 20 or 30 non-detergent based oil to the bearing.

Clean Fan Wheel

For access to fan assembly, remove discharge grille (if supplied). If unit is connected to ductwork, remove front (40UV) or bottom (40UH) panel, separate fan shaft from motor at bushing, remove motor, and slide fan assembly from track. Use a stiff brush or

vacuum to remove dirt and debris from scroll. Wipe all fan surfaces with a damp cloth. Reassemble as necessary.

Clean or Replace Air Filters

At the start of each cooling season and after each month of operation (more or less depending on operating conditions), replace the throwaway filter or clean the permanent filter.

THROWAWAY FILTER

Replace filter with a good quality filter of the correct size. Do not attempt to clean and reuse disposable filters. See Table 1 for filter sizes.

PERMANENT FILTER (FIBER TYPE)

1. Tap on solid surface to dislodge heavy particles.

2. Wash in hot water. If needed, use mild solution of commercial solvent such as sal soda or trisodium phosphate.

3. Set filter on end so that water drains out through slots in frame. Allow filter to dry thoroughly.

4. Recharge filter with recharging oil. Three ounces is sufficient for a medium size filter. Oil may be applied by insect spray gun. For easier spraying, the oil can be warmed.

5. If the filter is dipped in the recharging oil, remove it immediately and allow to drain through slots in frame.

6. Replace filter in unit.

If another type of filter is used, follow the filter manufacturer’s instructions.

ECM Motor Removal and Re-installation (see Fig. 24)

Carrier unit ventilators utilize an electronically commutated motor (ECM) to drive the indoor fan.

The ECM is a factory-programmed motor that is standard with factory-supplied UV Open controls and units without factorysupplied controls that are used in high-static applications or high-capacity coils.

The ECM is programmed with an algorithm that maintains a constant torque, as the static pressure on the system varies. For example, as the filter pressure drop increases due to dirt, the fan will increase speed (rpm) to maintain the cfm.

The ECM is identified by the two electrical receptacles located on the housing. See Fig. 18-24.

The first receptacle is a 5-row in-line connector that feeds the motor line voltage. This may be either 115 volts or 230 volts. Units that are wired for 230 volts have a jumper between terminals 1 and 2 on this plug (see wiring diagram).

The second receptacle on the motor is a 16-pin connector and is used for speed switching. This is a low voltage (24-v) connection. There is a jumper wire between terminals 1 and 3. This is a 24-v ground. Voltage is present at all times when the motor is energized.

NOTE: A time delay exists between the time the motor speed is switched and the motor’s reaction. This is designed into the electronics and does not indicate motor problems.

When replacing the motor, note the following:

• Check the part number of the old motor against that of the replacement. There is a tag indicating the eight-digit part number and begins with UVE. This is the program number used for this motor.

Page 33

• The motor must be installed per the instructions below. It is important to maintain the dimension between the fan compartment bulkhead and the coupling.

IMPORTANT: If a replacement cooling shroud has been supplied, it should be installed and the old one discarded. The motor shroud directs cooling air across the motor to provide proper cooling. Never run the motor without the cooling shroud in place. Ensure the shroud inlet ring does not touch the motor; a gap of

/16-in. to 1/8-in. is acceptable.

motor mounting bracket from the bulkhead. Loosen only the ‘belly band’ securing the motor in the mount.

6. Re-install the motor in the ‘belly band.’

7. Ensure the blower wheels are centered within the fan housings (between the inlet rings) before securing the motor shaft coupling.

CAUTION

The motor electronics will fail prematurely if no air is able to circulate over the motor.

CAUTION

Ensure the unit is completely assembled when checking the fan speed. Replace all panels, including the filters, before checking the fan for operation. When the internal pressure drops at a normal condition, the loading on the motor will be such that the fan can come up to selected speed.

Failure to ensure unit is completely assembled may result in reduced life of unit and/or personal injury.

To remove and re-install the motors, proceed as follows; refer to Fig. 24:

1. Remove the wire plugs from the motor.

2. Remove the 2 screws holding the motor shroud to the bulkhead.

3. Slide the shroud off the motor to the right.

4. Loosen the 3 setscrews on the shaft coupling between the motor shaft and the fan shaft.

5. Loosen the motor ‘belly band’ and slide motor out of the ‘belly band’ to the right. It is unnecessary to remove the

8. Ensure the motor housing is at least 1-in. from the bulkhead so that air will be able to circulate over the motor.

9. For vertical type units, position the motor so that the motor wire plugs are front facing on a horizontal plane. For horizontal type units with ceiling mounts, position the motor so that the motor wire plugs are front facing on a vertical plane.

10. Secure the 3 setscrews on the shaft coupling when the motor is properly positioned and the blower wheels are centered within their housing.

11. Re-secure the motor ‘belly band’ around the motor.

12. Re-install the motor shroud. It is important that the motor shroud be installed prior to operation of the motor. Ensure the venturi is installed on the motor shroud.

13. Re-secure the two screws holding the motor shroud to the bulkhead.

14. Re-install the motor wire plugs.

Page 34

SHAFTED END FACE

COUPLING INSIDE FACE

COUPLING FACE

MOTOR BEARING FACE

INSULATION FACE

MOTOR (ECM)

CENTER SHROUD OPENING OVER MOTOR ELECTRICAL CONNECTIONS.

INSTALL MOTOR AND COOLING SHROUD ELECTRICAL CONNECTIONS FACING UNIT FRONT.

MOTOR SHAFT

COUPLING

FAN SHAFT

.125 .032

+ –

0.500 0.063

+ –

1.000 0.063

+ –

NOTES:

1. All dimensions shown in inches.

2. Not all components shown for clarity.

3. Motor shroud not shown for clarity. Install prior to operation.

4. Refer to Fig. 30, Item 4 for cooling shroud installation.

Fig. 24 — 40UV,UH Ventilator Blower Section Assembly — ECM Motor Detail

Page 35

Blower Assembly Section Removal and Reinstallation (see Fig. 25)

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

Be careful with all components during installation, especially the bearing and plastic blower wheels. Any extreme force applied to these components can cause unintended damage and void the unit warranty.

To remove blower assembly:

1. Turn off power to the unit.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

2. Remove all front (40UV) or bottom (40UH) panels. Remove end panels.

3. Remove top panel with vanes and screens to the side (40UV). Remove ductwork if required and remove top (40UV) or front (40UH) discharge plenum.

4. Remove

/4-in. head screws along length of unit that secure coil baffle to blower section. See Item 5 in Fig. 25.

5. Remove four

/4-in. head screws that connect the blower section sides to the coil section sides. See Item 2 in Fig. 25.

6. Remove the

/4-in. head screw from the center of the blower deck that attaches the blower deck to the pipe chase. See Item 1 in Fig. 25.

7. Remove six

/4-in. head screws attaching coil baffle to

coil section. See Item 4 in Fig. 25.

8. Remove the harness connector(s) from the motor.

9. Remove the

/4-in. head screw from the green ground wire that connects the motor to frame if unit has a PSC (permanent split capacitor) motor. The ECM motors are grounded through the harness.

10. Remove the two carriage bolts retaining the front brace to the frame sides. See Item 6 in Fig. 25.

11. Remove the four nuts retaining the blower section to the back (40UV) or top (40UH) frame. See Item 3 in Fig. 25.

/16-in. nut driver and set optional

12. Remove the two

/16-in. nuts retaining the inboard bearing bracket to the pipe chase (40UV,UH150 units only). See Item 6 in Fig. 26.

13. Remove blower section from frame.

To re-install blower assembly to frame of unit:

1. Re-install blower section into frame assembly.

2. Tighten the four

/16-in. nuts retaining blower section to

frame. See Item 3 in Fig. 25.

3. Tighten the two

/16-in. nuts retaining the inboard bearing bracket to the pipe chase (40UV,UH150 units only). See Item 6 in Fig. 26.

4. Re-install two carriage bolts that attach the front brace to the frame sides. See Item 6 in Fig. 25.

5. Rotate the fan shaft by hand to ensure that fans are unrestricted and can rotate freely. Check for any fan obstructions.

6. Re-attach green ground wire that connects the motor to the frame with

/4-in. head screw if unit has a PSC motor.

The ECM motors are grounded through the harness.

7. Connect harness connector(s) to motor.

8. Re-install the coil baffle using six

/4-in. head screws that attach the coil baffle to the coil section. See Item 4 in Fig. 25.

9. Re-install the

/4-in. head screw at center of blower deck attaching blower deck to pipe chase. See Item 1 in Fig. 25.

10. Re-install the four

/4-in. head screws holding the blower section sides to the coil section sides. See Item 2 in Fig. 25.

11. Re-install

/4-in. head screws along length of the unit, securing coil baffle to the blower section. See Item 5 in Fig. 25.

12. Re-install optional vanes and screens and install top panel (40UV). Re-install top (40UV) or front (40UH) discharge plenum and ductwork, if required.

13. Re-install front (40UV) or bottom (40UH) panels. Reinstall end panels. Ensure that tag on each right front

panel (40UV) or middle bottom panel (40UH) matches unit tag.

14. Restore power to unit.

IMPORTANT: Disassembly order is not as important as reassembly. The assembly order of the bearing bracket installation is critical to having a well balanced and sound blower deck.

Page 36

FRONT BRACE

PIPE CHASE

COIL SECTION

BLOWER SECTION

DAMPER SECTION

COIL SECTION

FILTER DOOR RETAINER CLIPS (SEE NOTE 3)

COIL BAFFLE

RETURN AIR TEMPERATURE SENSOR (OPTIONAL) OPENING

DISCHARGE AIR TEMPERATURE SENSOR (OPTIONAL) OPENING

MOTOR & COUPLING SETCREW ACCESS

MOTOR

MOTOR ELECTRICAL BOX

NOTES:

1. Unit shown in vertical orientation. Drawing applies to horizontal and vertical units.

2. Not all components shown for clarity.

3. 40UV,UH125-200 units only.

LEGEND

1—

/4-in. Screw

2—

/4-in. Screw

3—5/16-in. Nut 4—

/4-in. Screw

5—

/4-in. Screw

6—Carriage Bolt

Fig. 25 — 40UV, UH Ventilator Blower Section

Page 37

SEE DETAIL A

SEE NOTE 4

BOTTOM VIEW

DETAIL A

NOTES:

1. Not all components shown for clarity.

2. This drawing applies to 1500 cfm units only.

3. Remove shaft, motor, and coupling prior to

bearing removal.

4. Refer to Fig. 24 and 31 for motor-coupling and

coupling-shaft clearances.

LEGEND

1—Shaft 2—Coupling 3—Motor 4—

/2-in. Bolt

5—Bearing 6—

/16-in. Nut

7—Hex Nut

Fig. 26 — 40UV,UH Ventilator Inboard Bearing (40UV,UH150 Only)

Page 38

Coil Assembly Removal and Re-installation (see Fig. 27)

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

Turn off all power supplies to equipment and controls. Failure to do so may cause personal injury or damage to the unit.

To remove coil assembly:

1. Turn off power to the unit.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

2. Remove all front (40UV) or bottom (40UH) panels. Remove end panels.

3. Remove secure coil baffle to blower section. See Item 2 in Fig. 27.

4. Remove four section sides to the coil section sides. See Item 1 in Fig. 27.

5. Remove actuator to damper shaft OR locking quadrant assembly to damper shaft. Remove OA actuator or locking quadrant assembly.

6. Tag low-limit thermostat wiring and terminals. Disconnect low-limit thermostat wiring (right end compartment).

/4-in. head screws along length of unit that

/4-in. head screws that connect the blower

/4-in. head screws attaching outside air (OA)

7. Drain water and/or recover refrigerant in accordance with all applicable codes. Disconnect piping from coil connections.

8. Tag optional electric heat element wire terminations for later reconnection. Disconnect element wires from electric heat control box (remove coil baffle for access).

9. Remove the four

/16-in. nuts retaining the coil section to

the frame.

10. Remove coil section from frame.

To re-install coil assembly:

1. Replace coil section into frames assembly.

2. Tighten the four

/16-in. nuts retaining coil section to

frame.

3. Reconnect electric heat wiring in electric heat control box.

4. Reconnect wiring to low limit thermostat.

5. Replace the four

/4-in. head screws holding the blower

deck to coil section (two on each side).

6. Replace coil baffle using

/4-in. head screws. See Item 2

in Fig. 27.

7. Re-install outside air actuator or locking quadrant handle

using

/4-in. head screws.

8. Reconnect piping to coils. If water coil, purge air from coils and perform hydrostatic test to check for leaks. If DX coil, perform leak test using nitrogen, and evacuate and charge per recommended HVAC procedures and all applicable codes.

9. Replace coil section side insulation.

10. Replace front (40UV) or bottom (40UH) panels. Replace end panels. Ensure that tag on each right front panel

(40UV) or middle bottom panel (40UH) matches unit tag.

11. Restore power to unit.

Page 39

BLOWER SECTION

DAMPER SECTION

COIL SECTION

FILTER DOOR RETAINER CLIPS (SEE NOTE 3)

DAMPER SECTION

COIL SECTION

MOTOR ELECTRICAL BOX

MOTOR

MOTOR & COUPLING SETSCREW ACCESS

DISCHARGE AIR TEMPERATURE SENSOR OPENING

RETURN AIR TEMPERATURE SENSOR OPENING

FRONT COIL BAFFLE

NOTES:

1. Unit shown in vertical orientation. Drawing applies to horizontal and vertical units.

2. Not all components shown for clarity.

3. 40UV,UH125-150, 40UH200 units only.

LEGEND

1—

/4-in. Head Screw

2—1/4-in. Head Screw

Fig. 27 — 40UV, UH Ventilator Coil Section

Page 40

Ball Bearing Replacement (40UV,UH150; 40UH200 Units Only)

Refer to Fig. 28 for 40UH200 units only, Fig. 29 for 40UV150 and 40UH150 units with PSC motors, Fig. 30 for 40UV150 and 40UH150 units with ECM motors.

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

The assembly order of the bearing installation is critical. Be careful with all components during removal and installation. Any excessive force applied to these components can cause unintended damage and void unit warranty.

To replace ball bearing:

1. Turn off all power to unit.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

2. Remove front (40UV) or bottom (40UH) panels and right (motor end) end panel.

3. Remove top panel and set optional vanes and screens to the side (40UV). Remove ductwork if required and remove top (40UV) or front (40UH) discharge plenum. For non-ducted 40UH horizontal units with front double deflection discharge grille, remove grille for access to wheel setscrews. See Fig. 25.

4. Remove secure coil baffle to blower section and remove front coil baffle. See Item 5 in Fig. 25.

5. Loosen setscrews on all blower wheels (two per wheel). See Fig. 26 and Fig. 28.

6. Loosen bearing setscrews.

7. Remove wiring harness connector(s) from motor.

8. If unit has ECM motor, remove motor shroud (sheet metal cover — Fig. 28, Item 6; Fig. 30, Item 4) by removing two

shroud.

9. Loosen Item 2; Fig. 30, Item 2), nut (Fig. 28, Item 3; Fig. 29, Item 5; Fig. 30, Item 6), and bolt (Fig. 28, Item 4; Fig. 29, Item 4; Fig. 30, Item 5), until motor housing (Fig. 28, Item 5; Fig. 29, Item 3; Fig. 30, Item 3) moves freely.

10. Slide shaft-coupling-motor assembly (Fig. 26, Items 3, 2, 1; Fig. 28, Items 5, 2, 10) out of wheels and unit until shaft clears inboard/center bearing assembly (30-in. max clearance required from edge of frame end).

/4-in. head screws along length of unit that

/16-in. hex nuts. Do not discard cooling

/16-in. motor mount (Fig. 28, Item 7; Fig. 29,

11. Remove

/2-in. bolts (Fig. 26, Item 4; Fig. 28, Item 9) and hex nuts (Fig. 26, Item 7; Fig. 28, Item 1) securing bearing to bearing bracket. Remove bearing (Fig. 26, Item 5; Fig. 28, Item 8).

12. Install new bearing (Fig. 26, Item 5; Fig. 28, Item 8). Secure with

/2-in. bolts (Fig. 26, Item 4; Fig. 28, Item 9)

and hex nuts (Fig. 26, Item 7; Fig. 28, Item 1).

13. Slide shaft-coupling-motor assembly (Fig. 26, Items 3, 2, 1; Fig. 28, Items 5, 2, 10) back into bearing and wheels.

Do not use excessive force. Damage to wheels may occur.

14. Insert shaft-coupling-motor assembly into wheels until motor clearance is as specified for motor type (PSC or ECM). See Fig. 31 or Fig. 24.

15. Ensure that motor shaft is perpendicular to motor blower endplate. Tighten

/16-in. motor mount (Fig. 28, Item 7; Fig. 29, Item 2; Fig. 30, Item 2), nut (Fig. 28, Item 3; Fig. 29, Item 5; Fig. 30, Item 6), and bolt (Fig. 28, Item 4; Fig. 29, Item 4; Fig. 30, Item 5), until motor (Fig. 28, Item 5; Fig. 29, Item 3; Fig. 30, Item 3) is secure.

16. Install motor shroud (sheet metal cover - Fig. 28, Item 6; Fig. 30, Item 4) using two

/16-in. hex nuts if using ECM

motor. Align “window” with receptacles on motor.

Motor control module could overheat and fail if operated without cooling shroud.

17. Re-attach green ground wire that connects the motor to the frame with

/4-in. head screw if unit has a PSC motor.

The ECM motors are grounded through the harness.

18. Re-attach wiring harness connector(s) to motor.

19. Center each wheel in its respective housing and tighten wheel setscrews (two for each wheel).

20. Rotate the fan shaft by hand to ensure that fans are unrestricted and can rotate freely. Check for any fan obstructions.

21. Remove lockout and operate unit for approximately 60 seconds to let inboard/center bearing mount self-adjust.

22. Lock out and tag all power supplies to equipment and controls. Tighten the two bearing setscrews.

23. Re-install the coil baffle using the six

/4-in. head screws that attach the coil baffle to the coil section. See Item 4 in Fig. 25.

24. Re-install

/4-in. head screws along length of unit securing coil baffle to the blower section. See Item 5 in Fig. 25.

25. Re-install optional vanes and screens and install top panel (40UV). Re-install top (40UV) or front (40UH) discharge plenum and ductwork if required or discharge grille.

26. Re-install front (40UV) or bottom (40UH) panels. Reinstall end panels. Ensure that tag on each right front

panel (40UV) or middle bottom panel (40UH) matches unit tag.

27. Restore power to unit.

Page 41

(SEE NOTE 5)

(SEE NOTE 4)

UNIT

BOTTOM

LEFT SIDE

VIEW

(SEE NOTE 5)

NOTES:

1. Not all components shown for clarity.

2. This drawing applies to 2000 cfm units only.

3. Remove shaft, motor and coupling prior to removing bearing. Refer to Removal and Re-installation instructions.

4. Install sleeve bearing with oil cup facing up and towards the rear of the assembly.

5. Refer to Fig. 24 for motor-coupling and shaft-coupling tolerances.

LEGEND

1—Hex Nut 2—Coupling 3—Nut 4—Bolt 5—Motor Housing 6—Motor Shroud 7—

/16-in. Motor Mount

8—Bearing 9—

/2-in. Bolt

10 — Shaft 11 — Bolt 12 — End Bearing Bracket 13 — Hex Nut 14 — Holding Bearing

Fig. 28 — 40UH200 Ventilator Blower Drive Train Assembly

Page 42

SEE NOTE 2

(SEE NOTE 4)

(SEE NOTE 3)

UNIT FRONT (40UV)

UNIT BOTTOM (40UH)

LEFT SIDE VIEW

NOTES:

1. Not all components shown for clarity.

2. Items no. 7, 10 and associated hardware not required for 40UV,UH150. Refer to Fig. 26 for 40UV,UH150 in-board bearing replacement.

3. Install motor with capacitor facing up.

4. Install sleeve bearing with oil cup facing up and towards the rear of the assembly.

LEGEND

1—Shaft 2—

/16-in. Motor Mount

3—Motor Housing 4—Bolt 5—Nut 6—Coupling 7—End Bearing Bracket 8—Hex Nut

9—Hex Nut 10 — Holding Bearing 11 — Bolt 12 — Bearing Bracket Assembly

Fig. 29 — 40UV,UH Ventilator Blower Drive Train Assembly —

40UV050-150 and 40UH075-150 Units (PSC Motor)

Page 43

UNIT FRONT (40UV) UNIT BOTTOM (40UH)

(SEE NOTE 4)

LEFT SIDE

VIEW

SEE NOTE 2

NOTES:

1. Not all components shown for clarity.

2. Items no. 8, 11 and associated hardware not required for 40UV,UH150. Refer to Fig. 26 for 40UV,UH150 in-board bearing replacement.

3. Install motor with electrical connections facing front of assembly.

4. Install oil cup facing up and towards the rear of the assembly.

LEGEND

1—Shaft 2—

/16-in. Motor Mount

3—Motor Housing 4—Motor Shroud 5—Bolt 6—Nut 7—Coupling 8—End Bearing Bracket

9—Hex Nut 10 — Hex Nut 11 — Holding Bearing 12 — Bolt 13 — Bearing Bracket Assembly

Fig. 30 — 40UV,UH Ventilator Blower Drive Train Assembly —

40UV050-150 and 40UH075-150 Units (ECM Motor)

Page 44

0.500 0.063

.125 .032

FAN SHAFT

COUPLING

MOTOR SHAFT

FACE OF MOTOR FLUSH WITH FACE OF INSULATION

MOTOR (PSC)

BLOWER SECTION

FRONT VIEW

SHAFTED END FACE

COUPLING INSIDE FACE

COUPLING FACE

MOTOR BEARING FACE

+ –

NOTES:

1. All dimensions shown in inches.

2. Not all components shown for clarity.

Fig. 31 — 40UV,UH Ventilator Blower Section Assembly — PSC Motor Detail

Page 45

Sleeve Bearing Replacement (40UV050-125, 40UH075-125 and 40UH200 Units Only) (see Fig. 32)

Refer to Fig. 28 for 40UH200 units only, Fig. 29 for 40UV050150 and 40UH075-125 units with PSC motors, Fig. 30 for 40UV050-125 and 40UH075-150 units with ECM motors.

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

To replace ball bearing:

1. Turn off all power to unit.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

2. Use

3. Remove

4. Remove left blower section end (Item 2 in Fig. 32) insu-

5. Use

6. Remove bearing bracket assembly (Fig. 28, Items 12, 14,

/32-in. hex (Allen) tool or 3/8-in. nut driver to remove front (40UV) or bottom (40UH) panels and right (motor end) end panel.

/4-in. head screws (Item 5 in Fig. 25) along length of unit that secure coil baffle to blower section and remove front coil baffle.

lation (Item 1 in Fig. 32).

/16-in. socket to remove hex nuts (Fig. 28, Item 13; Fig. 29, Item 8; Fig. 30, Item 9) securing end-bearing bracket (Fig. 28, Item 12; Fig. 29, Item 7; Fig. 30, Item

8) to blower section end.

13, 11; Fig. 29, Items 7, 10, 9, 11; Fig. 30, Items 8, 11,

10, 12) from blower section end. Use care to slide assembly off of shaft end. Hold shaft from inside blower sec-

tion to prevent wheel damage.

7. Use

/2-in. socket and 1/2-in. combination wrench to remove hex nuts (Fig. 28, Item 13; Fig. 29, Item 9; Fig. 30, Item 10) and bolts (Fig. 28, Item 11; Fig. 29, Item 11; Fig. 30, Item 12) holding bearing (Fig. 28, Item 14; Fig. 29, Item 10; Fig. 30, Item 11) and bearing bracket (Fig. 28, Item 12; Fig. 29, Item 7; Fig. 30, Item

8) together.

CAUTION

Ensure sleeve bearing is installed with oil cup facing upwards as shown in left side view.

8. Replace bearing (Fig. 28, Item 14; Fig. 29, Item 10; Fig. 30, Item 11). Attach to bearing bracket using hex nuts and bolts. Align oil cup port with matching cutout in bearing bracket.

9. Use

10. Add 5 to 10 drops of SAE 20 or 30 non-detergent based

11. Rotate the fan shaft by hand to ensure that fans are

12. Re-install left blower section end insulation (Item 1 in

13. Re-install

14. Re-install front (40UV) or bottom (40UH) panels. Re-

15. Restore power to unit.

/16-in. socket to slide replacement bearing (Fig. 28, Item 14; Fig. 29, Item 10; Fig. 30, Item 11) on to the end of shaft and install bearing bracket assembly (Fig. 28, Items 12, 14, 13, 11; Fig. 29, Items 7, 10, 9, 11; Fig. 30, Items 8, 11, 10, 12) in blower section end. Attach using hex nuts.

oil to bearing.

unrestricted and can rotate freely. Check for any fan obstructions.

Fig. 32).

/4-in. head screws (Item 5 in Fig. 25) along

length of unit securing coil baffle to the blower section.

install end panels. Ensure that tag on each right front

panel (40UV) or middle bottom panel (40UH) matches unit tag.

Page 46

AUTOMATIC RESET

CAUTION

DO NOT CHANGE LIMIT SWITCH CAPILLARY TUBE LOCATION! LIMIT SWITCHES MAY NOT FUNCTION PROPERLY.

LEGEND

1—Insulation 2—Left Blower Section End 3—Blower Deck 4—Blower Inlet Ring 5—

/4-in. Head Screw

6—

/4-in. Head Screw

7—Blower Housing 8—Blower Wheel

NOTES:

1. Not all components shown for clarity.

2. Supplied on electric heat units only.

3. Secure capillary tubes to blower housing using high temperature cable tie. Capillary tube lengths will vary depending on unit size.

HIGH TEMPERATURE LIMIT SWITCH (SEE NOTES 2,3) (SEE CAUTION)

MANUAL RESET HIGH TEMPERATURE LIMIT SWITCH (SEE NOTES 2,3) (SEE CAUTION)

DISCHARGE AIR TEMPERATURE SENSOR (OPTIONAL) OPENING

Fig. 32 — 40UV,UH Ventilator Blower Section Assembly Sheet Metal (All Units)

RETURN AIR TEMPERATURE SENSOR (OPTIONAL) OPENING

MOTOR AND COUPLING SETSCREW ACCESS

Page 47

Blower Wheel Removal and Re-installation (see Fig. 32)

Refer to Fig. 28 for 40UH200 units only, Fig. 29 for 40UV050150 and 40UH075-125 units with PSC motors, Fig. 30 for 40UV050-125 and 40UH075-150 units with ECM motors.

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

To remove blower wheel:

1. Turn off all power to the unit.

2. Remove blower section per service instructions in Blower Assembly Section Removal and Re-installation.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

3. Use

4. Loosen inboard/center bearing setscrews (only on

5. If unit has ECM motor, remove motor shroud (sheet

6. Loosen

7. Slide shaft-coupling-motor assembly (Fig. 26, Items 3, 2,

8. Remove four

9. Remove five

10. Remove blower wheel(s) (Fig. 32, Item 8).

To re-install blower wheel:

1. Install new blower wheel(s) (Fig. 32, Item 8). Ensure that

2. Install inlet ring (Fig. 32, Item 4) and install five ¼-in.

3. Install four

/32-in. hex tool to loosen setscrews on all blower

wheels (two per wheel).

40UV,UH150 and 200 size units).

metal cover — Fig. 28, Item 6; Fig. 30, Item 4) by removing two

/16-in. hex nuts. Do not discard cooling

shroud.

/16-in. motor mount (Fig. 28, Item 7; Fig. 29, Item 2; Fig. 30, Item 2), nut (Fig. 28, Item 3; Fig. 29, Item 5; Fig. 30, Item 6), and bolt (Fig. 28, Item 4; Fig. 29, Item 4; Fig. 30, Item 5), until motor housing (Fig. 28, Item 5; Fig. 29, Item 3; Fig. 30, Item 3) moves freely.

1; Fig. 28, Items 5, 2, 10) out of wheels and unit until shaft clears inboard/center bearing assembly (30-in. maximum clearance required from edge of frame end).

/4-in. head screws (Fig. 32, Item 6) securing blower housing(s) (Fig. 32, Item 7) to blower deck (Fig. 32, Item 3) and remove blower and wheel assembly.

/4-in. head screws (Fig. 32, Item 5) securing blower inlet ring (Fig. 32, Item 4) to blower housing and remove inlet ring.

the fan blades are installed in the correct orientation (cup of blade towards discharge).

head screws (Fig. 32, Item 5) securing blower inlet ring to blower housing (Fig. 32, Item 7).

/4-in. head screws (Fig. 32, Item 6) securing blower housing(s) (Fig. 32, Item 7) to blower deck (Fig. 32, Item 3).

4. Slide shaft-coupling-motor assembly (Fig. 26, Items 3, 2, 1; Fig. 28, Items 5, 2, 10) back into bearing and wheels.

Do not use excessive force. Damage to wheels may occur.

5. Insert shaft-coupling-motor assembly into wheels until motor clearance is as specified for motor type (PSC or ECM). See Fig. 31 or Fig. 24.

6. Ensure that motor shaft is perpendicular to motor blower endplate. Tighten

7. Install motor shroud (sheet metal cover — Fig. 28, Item 6; Fig. 30, Item 4) using two

/16-in. hex nuts if using

ECM motor. Align “window” with receptacles on motor.

Motor control module could overheat and fail if operated without cooling shroud.

8. Re-install blower section into frame assembly. See Fig. 25.

9. Tighten the four

/16-in. nuts retaining blower section to

frame.

10. Tighten the two

/16-in. (Fig. 26, Item 6) nuts retaining the inboard bearing bracket to the pipe chase (only on 40UV,UH150 and 200 size units).

11. Re-install two carriage bolts (Fig. 25, Item 6) that attach the front brace to the frame sides.

12. Re-attach green ground wire that connects the motor to the frame with

/4-in. head screw if unit has a PSC motor.

The ECM motors are grounded through the harness.

13. Re-attach wiring harness connector(s) to motor.

14. Center each wheel in its respective housing and tighten wheel setscrews (two for each wheel).

15. Re-install one

/4-in. head screw (Fig. 25, Item 1) at cen-

ter of blower deck attaching blower deck to pipe chase.

16. Re-install the four

/4-in. head screws (Fig. 25, Item 2)

holding the blower section sides to the coil section sides.

17. Rotate the fan shaft by hand to ensure that fans are unrestricted and can rotate freely. Check for any fan obstructions.

18. Remove lockout and operate unit for approximately 60 seconds to let inboard/center bearing mount selfadjust (only on 40UV,UH150 and 200 size units).

19. Lock out and tag all power supplies to equipment and controls. Tighten the two bearing setscrews (only on 40UV,UH150 and 200 size units). See Fig. 26, 28 or 32.

20. Re-install the coil baffle using the six

/4-in. head screws that attach the coil baffle to the coil section. See Item 4 in Fig. 25.

21. Re-install

/4-in. head screws along length of unit securing coil baffle to the blower section. See Item 5 in Fig. 25.

22. Re-install optional vanes and screens and install top panel (40UV). re-install top (40UV) or front (40UH) discharge plenum and ductwork if required or discharge grille.

23. Re-install front (40UV) or bottom (40UH) panels. reinstall end panels. Ensure that tag on each right front

panel (40UV) or middle bottom panel (40UH) matches unit tag.

24. Restore power to unit.

Page 48

Damper Section Removal and Re-installation (see Fig. 33)

WARNING

Lock out and tag all power supplies to equipment and controls prior to servicing unit. Follow all safety codes. Failure to do so could result in personal injury.

CAUTION

To remove damper section:

1. Turn off all power to unit.

IMPORTANT: Tag each right front panel (40UV) or middle bottom panel (40UH) for each unit. Panels have electrical information specific to each unit.

2. Use

3. Remove four carriage bolts and nuts securing kickplate

/32-in. hex (Allen) tool or 3/8-in. nut driver to remove front (40UV) or bottom (40UH) panels and right end panels.

to end frames.

IMPORTANT: Tag kickplate for each unit. Kickplate has electrical information specific to each unit.

4. Remove the two

/4-in. head screws securing kickplate to the damper sides (one on each side) and remove kickplate.

5. Remove

/4-in. head screws attaching outside air (OA) actuator to damper shaft or attaching locking quadrant assembly to damper shaft. Remove OA actuator or locking quadrant assembly.

6. Remove six

/4-in. head screws (3 per side) securing

damper to 40UH unit rear panel.

7. Remove two

/16-in. nuts attaching damper assembly to

back frame.

8. Remove damper assembly from unit.

To replace damper section:

1. Replace damper assembly into unit.

2. Replace

/16-in. nuts attaching damper assembly to back

frame.

3. Replace six

/4-in. head screws (3 per side) securing

damper to 40UH unit rear panel.

4. Replace

/4-in. head screws attaching OA actuator to damper shaft OR attaching locking quadrant assembly to damper shaft. Replace OA actuator or locking quadrant assembly.

5. Replace the two

/4-in. head screws securing kickplate to the damper sides (one on each side) and remove kickplate.

6. Replace four carriage bolts and nuts securing kickplate to end frames.

7. Re-install front (40UV) or bottom (40UH) panels. reinstall end panels. Ensure that tag on each right front

panel (40UV) or middle bottom panel (40UH) matches unit tag.

8. Restore power to the unit.

Page 49

RETURN AIR TEMPERATURE SENSOR OPENING

FRONT COIL BAFFLE

DISCHARGE AIR TEMPERATURE SENSOR OPENING

MOTOR & COUPLING SETSCREW ACCESS

MOTOR

MOTOR ELECTRICAL BOX

COIL SECTION

DAMPER SECTION

BLOWER SECTION

DAMPER SECTION

KICKPLATE

NOTES:

1. Unit shown in vertical orientation. Drawing applies to horizontal and vertical units.

2. Not all components shown for clarity.

Fig. 33 — 40UV,UH Ventilator Damper Section Removal/Installation

Page 50

Catalog No. 04-53400048-01 Printed in U.S.A. Form 40UV-UH-11SI Pg 50 8-18 Replaces: 40UV-UH-10SI

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Page 51

UNIT START-UP CHECKLIST

NOTE: To avoid injury to personnel and damage to equipment or property when completing the procedures listed in this start-up checklist, use good judgment, follow safe practices, and adhere to the safety considerations/information as outlined in preceding sections of this Installation, Start-Up, and Service document.

MODEL NO.: _________________________________ SERIAL NO.: _____________________________________

SOFTWARE VERSION _________________________ TECHNICIAN: ____________________________________

DATE: _______________________________________

INITIAL CHECKLIST:

 DOES ELECTRICAL SERVICE CORRESPOND TO UNIT NAMEPLATE?

 ARE ALL ELECTRICAL CONNECTIONS TIGHT?

 DOES ALL FIELD WIRING CONFORM TO UNIT WIRING DIAGRAM?

 IS UNIT INSTALLED PER IOM (LEVEL, CABINET PAINT CONDITION ACCEPTABLE, ETC.)?

 IS THE CONDENSATE DISPOSAL SYSTEM OPERATING CORRECTLY?

 PROPER SLOPE OF FIELD REVERSIBLE DRAIN PAN?

 ARE END BEARING BOLTS ON FAN SHAFT TIGHT?

 ARE DAMPERS OPERATING PROPERLY?

 IS THE FILTER CLEAN?

 IS EXPANSION VALVE BULB PROPERLY INSTALLED AND INSULATED?

PIPING CHECKLIST:

 IS EXPANSION VALVE BULB PROPERLY INSTALLED AND INSULATED?

 IS UNIT PIPING CORRECT AND INSULATED TO PREVENT CONDENSATION?

 ARE THE CONTROL VALVE PACKAGES PIPED CORRECTLY?

 ARE VALVE PACKAGES PROPERLY INSULATED?

 ARE THERE ANY LEAKS DETECTED?

CONTROLS CHECKLIST:

 DOES THE UNIT HAVE CARRIER CONTROLS (CCN OR OPN)? IF SO, CONTINUE.

 CHECK THAT THE UNIT OPERATES PER SEQUENCE OFOPERATION AS STATED IN THE CONTROLLER IOM.

 RECORD THE THERMOSTAT READINGS IN TABLE BELOW.

Please Fill Out the Following: Reading

Controller Points

Space Temperature

Discharge Air Temperature

Outdoor Air Temperature

Outdoor Air Damper Position

Set Points

Space Setpoint

Unoccupied Offset

Minimum Position

Deadband

Position (Open / Closed / %)

Outdoor Air Damper

Face/Bypass Damper

Catalog No. 04-53400048-01 Printed in U.S.A. Form 40UV-UH-11SI Pg CL-1 8-18 Replaces: 40UV-UH-10SI

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Page 52

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.

Catalog No. 04-53400048-01 Printed in U.S.A. Form 40UV-UH-11SI Pg CL-2 8-18 Replaces: 40UV-UH-10SI

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -- - - - - - - - - - - - - - - - - - - -

Carrier 40UV075, 40UV050, 40UV125, 40UV100, 40UV200+ Installation, Start-up And Service Instructions Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

SAFETY CONSIDERATIONS

INTRODUCTION

PRE-INSTALLATION

Unpack and Inspect Units

INSTALLATION

Step 1 — Place Units in Position

PLACING VERTICAL UNITS

Protect Units from Damage

Prepare Jobsite for Unit Installation

Identify and Prepare Units

PLACING HORIZONTAL UNITS

Step 2 — Make Piping Connections

WATER SUPPLY/RETURN CONNECTIONS

STEAM CONNECTIONS

DIRECT EXPANSION REFRIGERANT PIPING

HYDRONIC COIL PIPING

CONTROL VALVES

Step 3 — Make Electrical Connections

Step 4 — Mount Actuators (Field-Supplied)

Step 5 — Make Duct Connections

Step 6 — Make Final Preparations

START-UP

SERVICE

Periodic Maintenance Checklist

Preventing Excessive Condensation on Unit

Check Drain

Fan Motor Bearings

Fan Shaft Ball Bearing

Clean Fan Wheel

Clean or Replace Air Filters

THROWAWAY FILTER

PERMANENT FILTER (FIBER TYPE)

ECM Motor Removal and Re-installation (see Fig. 24)

Coil Assembly Removal and Re-installation (see Fig. 27)

Ball Bearing Replacement (40UV,UH150; 40UH200 Units Only)

Sleeve Bearing Replacement (40UV050-125, 40UH075-125 and 40UH200 Units Only) (see Fig. 32)

Blower Wheel Removal and Re-installation (see Fig. 32)

Damper Section Removal and Re-installation (see Fig. 33)

UNIT START-UP CHECKLIST