Carrier 50PEC09-18 User Manual

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Page 1

AQUAZONE™

50PEC09-18

Water Source Heat Pump Console Unit

with PURON

Refrigerant (R-410A)

Installation, Start-Up and Service Instructions

CONTENTS

Page

SAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . .1,2

GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-33

Step 1 — Check Jobsite . . . . . . . . . . . . . . . . . . . . . . . . 2

Step 2 — Check Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 17

• STORAGE

• UNIT PROTECTION

Step 3 — Mount Unit . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Step 4 — Wire Electrical Connections . . . . . . . . . . 17

• SUPPLY VOLTAGE

• EXTERNAL LOOP POWER CONNECTION

• 230-V OPERATION

Step 5 — Wire Low Voltage Connections . . . . . . . 30

• WATER FREEZE PROTECTION

• ACCESSORY CONNECTIONS

• WATER SOLENOID VALVES

• OPTIONAL WALL-MOUNTED THERMOSTAT

• OPTIONAL PREMIERLINK™ CONTROLLER

• WSHP OPEN WIRING

Step 6 — Install Supply and Return Piping. . . . . . 32

• SUPPLY AND RETURN HOSES

• SUPPLY AND RETURN PIPING

Step 7 — Install Condensate Piping . . . . . . . . . . . . 33

PRE-START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33-35

System Cleaning and Flushing . . . . . . . . . . . . . . . . 33

System Checkout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

FIELD SELECTABLE INPUTS . . . . . . . . . . . . . . . .36,37

Complete C Control Jumper Settings. . . . . . . . . . . 36

Complete C Control DIP Switches. . . . . . . . . . . . . . 36

Deluxe D Control Jumper Settings . . . . . . . . . . . . . 36

Deluxe D Control DIP Switches . . . . . . . . . . . . . . . . 36

Deluxe D Control Accessory

Relay Configurations . . . . . . . . . . . . . . . . . . . . . . . 37

START-UP . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37-40

Unit Start-Up/Cooling . . . . . . . . . . . . . . . . . . . . . . . . . 37

Operating Limits. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

Unit Start-Up/Heating . . . . . . . . . . . . . . . . . . . . . . . . . 37

Unit Start-Up with WSHP Open Controls. . . . . . . . 38

Flow Regulation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Antifreeze . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Cooling Tower/Boiler Systems . . . . . . . . . . . . . . . . . 40

Ground Coupled, Closed Loop and Plateframe

Heat Exchanger Well Systems . . . . . . . . . . . . . . . 40

OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40-43

Power Up Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Units with Aquazone Complete C Control. . . . . . . 40

Units with Aquazone Deluxe D Control . . . . . . . . . 40

Units with WSHP Open Multiple Protocol . . . . . . . 41

COMPLETE C AND DELUXE D BOARD

SYSTEM TEST. . . . . . . . . . . . . . . . . . . . . . . . . . . 43-45

Test Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

WSHP Open Test Mode . . . . . . . . . . . . . . . . . . . . . . . 44

Retry Mode. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44

Aquazone Deluxe D Control LED Indicators. . . . . 44

Page

SERVICE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45-47

Unit Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

System Flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Water Coil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Refrigerant System . . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Condenser Cleaning . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Condensate Pans. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Blower Motors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Safety Control Reset. . . . . . . . . . . . . . . . . . . . . . . . . . 46

Checking System Charge . . . . . . . . . . . . . . . . . . . . . 47

Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 47

Air Coil Fan Motor Removal . . . . . . . . . . . . . . . . . . . 47

Replacing the WSHP Open Controller’s

Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . .47-49

Thermistor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

WSHP Open Controller. . . . . . . . . . . . . . . . . . . . . . . . 47

APPENDIX A — WSHP OPEN SCREEN

CONFIGURATION . . . . . . . . . . . . . . . . . . . . . . . . .50-55

START-UP CHECKLIST. . . . . . . . . . . . . . . . . CL-1, CL-2

IMPORTANT: Read the entire instruction manual before starting installation.

SAFETY CONSIDERATIONS

Installation and servicing of air-conditioning equipment can be hazardous due to system pressure and electrical components. Only trained and qualified service personnel should install, repair, or service air-conditioning equipment.

Untrained personnel can perform basic maintenance functions of cleaning coils and filters and replacing filters. All other operations should be performed by trained service personnel. When working on air-conditioning equipment, observe precautions in the literature, tags and labels attached to the unit, and other safety precautions that may apply.

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock or other conditions which may cause personal injury or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions attached to the unit. Consult local building codes and applicable electrical codes for special installation requirements.

Understand the signal words — DANGER, WARNING, and CAUTION. DANGER identifies the most serious hazards which will result in severe personal injury or death. WARNING

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

Catalog No. 04-53500052-01 Printed in U.S.A. Form 50PEC-2SI Pg 1 7-09 Replaces: 50PEC-1SI

Page 2

signifies hazards that could result in personal injury or death. CAUTION is used to identify unsafe practices, which would result in minor personal injury or product and property damage.

WARNING

Electrical shock can cause personal injury or death. Before installing or servicing system, always turn off main power to system. There may be more than one disconnect switch. Turn off accessory heater power if applicable.

1. Compare the electrical data on the unit nameplate with ordering and shipping information to verify that the correct unit has been shipped.

2. Keep both the chassis and cabinet covered with the shipping carton until all plastering, painting, and finish work is complete and it is time to install the chassis and cabinet.

3. Verify that the refrigerant tubing is free of kinks or dents, and that it does not touch other unit components.

4. Inspect all electrical connections. Connections must be clean and tight at the terminals.

GENERAL

The 50PEC water source heat pump console unit is a decentralized room terminal designed for field connection to a closed-circuit piping loop.

Units are typically installed in perimeter zones, usually under windows. Supply air is discharged directly into the conditioned space through discharge grilles located in the top of the unit.

IMPORTANT: The installation of console water source heat pump units and all associated components, parts, and accessories which make up the installation shall be in accordance with the regulations of ALL authorities having jurisdiction and MUST conform to all applicable codes. It is the responsibility of the installing contractor to determine and comply with ALL applicable codes and regulations.

INSTALLATION

Step 1 — Check Jobsite —

stalled along an outside wall of the room. Refer to Fig. 1 and 2 for an illustration showing piping locations. Install units with adequate clearance to allow maintenance and servicing. Refer to Table 1 and Fig. 3-14. Locate the console unit so that it provides adequate air circulation throughout the room.

Installation, operation and maintenance instructions are provided with each unit. Before unit start-up, read all manuals and become familiar with the unit and its operation. Thoroughly check out the system before operation. Complete the inspections and instructions listed below to prepare a unit for installation.

Units are typically in-

CAUTION

To avoid equipment damage, do not use these units as a source of heating or cooling during the construction process. The mechanical components and filters used in these units quickly become clogged with construction dirt and debris which may cause system damage.

CAUTION

To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of this unit must only be serviced by technicians who meet local, regional, and national proficiency requirements.

CAUTION

All refrigerant discharged from this unit must be recovered without exception. Technicians must follow industry accepted guidelines and all local, regional, and national statutes for the recovery and disposal of refrigerants.

CAUTION

When a compressor is removed from this unit, system refrigerant circuit oil will remain in the compressor. To avoid leakage of compressor oil, the refrigerant lines of the compressor must be sealed after it is removed.

Table 1 — 50PEC Physical Data

BASE UNIT 50PEC 09 12 15 18 NOMINAL COOLING CAPACITY (Btuh)

COMPRESSOR

BLOWER

Motor Horsepower Wheel Size D x W (in.) 2 each

FILTER SIZE (in.) Bottom Return (Qty)

FILTER SIZE (in.) Front Return (Qty) UNIT WEIGHT (lb)

Shipping Operating

REF. TO AIR HEAT EXCHANGER

Face Area (sq ft) No. of Rows Deep Copper Tube Size OD (in.) Fin Spacing (FPI)

REFRIG. CHARGE (R-410A)/CKT (oz)

No. of Circuits

UNIT CABINET WITH BOTTOM RETURN WITH STANDARD 5 in. SUBBASE Width x Height x Depth (in.) 48 x 26 x 12 48 x 26 x 12 48 x 26 x 12 54 x 26 x 12

UNIT CABINET WITH FRONT RETURN (NO SUBBASE) Width x Height x Depth (in.) 48 x 21 x 12 48 x 21 x 12 48 x 21 x 12 54 x 21 x 12

WATER IN/OUT SIZE OD SWEAT (in.)

CONDENSATE SIZE ID VINYL (in.)

9,300 12,300 13,800 16,000

Rotary

51/4 x 61/

10 x 30 x 1 (1) 10 x 30 x 1 (1) 10 x 30 x 1 (1) 10 x 36 x 1 (1)

7 x 291/2 x 1/8 (1) 7 x 291/2 x 1/8 (1) 7 x 291/2 x 1/8 (1) 7 x 351/2 x 1/8 (1)

185 175

1.4 2

13 28

51/4 x 61/

190 180

1.4 3

13 29

51/4 x 61/

200 190

1.8 3

13 37

51/4 x 61/

232 220

1.8 3

12 39

Page 3

CONTROL BOX

1.62 (41)

2.00 (51)

OPTIONAL MOTORIZED WATER VALVE

OPTIONAL FLOW REGULATOR

OUT

COMPRESSOR ACCESS PANEL

OUT

WATER IN

8.00 MIN (203)

a50-8335

WATER OUT

WATER CONNECTIONS

5/8” (15.9) OD

COPPER, 1/2” IPT, OR

1/2” EPT

Right Hand Configuration

WATER IN

WATER CONNECTIONS

5/8” (15.9) OD COPPER, 1/2” IPT, OR 1/2” EPT

*11.25 (286)

1.75 (44)

WATER OUT

1.84 (77)

2.25 (57)

CONDENSATE

5/8" (15.9) ID VINYL HOSE

OPTI AUTO VALV

OPTIO MOTOR WATER

WATER C

5/8" (15 OD COP 1/2" IPT 1/2" EP

oNAL

IZED aLVE

2.25

oNNECTIONS

AA)

eR,

(57)

11.25 (286)

2.25 (57)

2.00 (51)

8.00 MIN (203)

CONDENSATE

5/8" (15.9) ID

VINYL HOSE

LEGEND

EPT — External Pipe Thread IPT — Internal Pipe Thread

*Dimension reduced by fitting if selected. NOTE: Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2.72 (96)

Left Hand Configuration

Fig. 1 — 50PEC09-15 Piping Dimensions

1.50 (38)

a50-8336

Page 4

1.75 (44)

CONTROL BOX

COMPRESSOR

ACCESS

PANEL

1.50 (38)

WATER CONNECTIONS

7/8” (22.2) OD

COPPER, 3/4” IPT, OR

3/4” EPT

WATER

OUT

8.00 MIN (203)

a50-8337

Right Hand Configuration

OPTIONAL MOTORIZED WATER VALVE

*11.12 (282)

1.75 (44)

OPTIONAL AUTO FLOW VALVE

2.12 (54)

CONDENSATE

1.84 (47)

5/8" (15.9) ID

VINYL HOSE

OUT

OPT AUT VAL

OPT MOT WAT

WATE

.875 ( OD C

3/4" IP 3/4" E

OUT

WATER CONNECTIONS 7/8” (22.2) OD COPPER, 3/4”

IPT OR 3/4” EPT

2.12 (54)

OPTIONAL AUTOFLOW VALVE

OPTIONAL MOTORIZED WATER VALVE

WATER

*11.12 (282)

2.25

(286)

1.50 (38)

8.00 MIN (203)

1.75 (44)

WATER

OUT

CONDENSATE

5/8" (15.9) ID

VINYL HOSE

LEGEND

EPT — External Pipe Thread IPT — Internal Pipe Thread

*Dimension reduced by fitting if selected. NOTE: Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2.72 (96)

Left Hand Configuration

BLOWER DECK

BLOWER ACCESS PANEL

a50-8338

Fig. 2 — 50PEC18 Piping Dimensions

Page 5

Filter located inside and at top of air inlet area. Rotate

filter latch forward, filter rack can be pulled forward 3” to 4” for filter access

16.0

(406)

CONTROL ACCESS DOOR

FRONT VIEW

3.53 (90)

5.0

(127)

DISCHARGE

AIR

VIEW

SIDE

3.5

(89)

(658)

25.9

1.75

(44.5)

1.0

1.0 (25)

R.H.

REAR ACCESS (NOTE 2)

(25)

4.5

(114)

AIR INLET AREA

(851)

20.0

(508)

33.5

BOTTOM VIEW

48.0

(1219)

48.0

(1219)

REAR VIEW

.75 (19)

3.00 (76)

10.0

(254)

AIR

INLET

(292)

12.0 (305)

R.H. PIPE AND

ELECTRIC AREA (NOTE 2)

6.88 (174)

2.12 (54)

1.75 (44)

21.0

(533)

11.5

4.9

(125)

a50-8339

1.63 (41)

DAMPER OPENING

11.75 (298)

48.0

(1219)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

Fig. 3 — 50PEC09-15 Bottom Return Cabinet Dimensions — Right Hand Piping

0.59

(15)

9.81

(249)

4.9

(125)

Page 6

16.00 (406)

5.00

(127)

DISCHARGE

AIR

30˚

3.50

(89)

1.75

(44.5)

1.00

(25)

Filter located inside and at top of air inlet area. Push tabs up and back to release filter for replacement.

AIR INLET AREA

39.50

(1003)

4.50

(114)

54.00

(1372)

54.00

(1372)

BOTTOM VIEW

CONTROL ACCESS DOOR

FRONT VIEW

3.53

(90)

10.00 (254)

3.00 (76)

AIR

INLET

R.H. PIPE AND ELECTRIC AREA (NOTE 2)

6.88 (174)

2.12 (54)

0.75 (19)

1.75 (44)

SIDE

VIEW

11.50 (292)

12.00 (305)

25.90 (658)

4.90

(125)

1.00 (25)

RH REAR

ACCESS

(NOTE 2)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

20.00 (508)

REAR VIEW

1.63 (41)

DAMPER OPENING

11.75 (298)

54.00

(1372)

Fig. 4 — 50PEC18 Bottom Return Cabinet Dimensions — Right Hand Piping

0.59 (15)

9.81

(249)

21.00 (533)

4.90

(125)

a50-8340

Page 7

Filter located inside and at top of air inlet area. Rotate

filter latch forward, filter rack can be pulled forward 3” to 4” for filter access

CONTROL ACCESS DOOR

FRONT VIEW

3.53 (90)

12.6 (320)

1.5

(38)

DISCHARGE

AIR

30°

SIDE

VIEW

3.5

(89)

(658)

25.9

1.75

(44.5)

6.88

(174)

2.12 (54)

1.75 (44)

3.00 (76)

10.0

(254)

AIR INLET AREA

33.5

(851)

L.H. PIPE AND ELECTRIC AREA NOTE 2

0.75 (19)

48.0

(1219)

48.0

(1219)

BOTTOM VIEW

REAR VIEW

L.H.

REAR ACCESS (NOTE 2)

4.5

(114)

20.0

(508)

AIR

INLET

(25)

1 (25)

21.0 (533)

11. 5

(292)

12.0 (305)

4.9

(125)

1.63 (41)

DAMPER OPENING

11.75

48.0

(1219)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

(298)

Fig. 5 — 50PEC09-15 Bottom Return Cabinet Dimensions — Left Hand Piping

0.59 (15)

9.9

(251)

4.9

(125)

a50-8341

Page 8

Filter located inside and at top of air inlet area. Rotate

filter latch forward, filter rack can be pulled forward 3” to 4” for filter access

CONTROL ACCESS DOOR

FRONT VIEW

(90)

3.53

12.60 (320)

1.50 (38)

DISCHARGE

AIR

30˚

SIDE

VIEW

3.50 (89)

25.90 (658)

2.12 (54)

1.75

(44.5)

6.88

(174)

1.75

3.00 (76)

(44)

10.00 (254)

AIR INLET AREA

39.50

(1003)

L.H. PIPE AND ELECTRIC AREA (Note 2)

0.75 (19)

54.00

(1372)

54.00

(1372)

BOTTOM VIEW

REAR VIEW

REAR

ACCESS

(Note 2)

4.50

(114)

20.00 (508)

AIR

INLET

1.00 (25)

21.00 (533)

11.50 (292)

12.00 (305)

4.90

(125)

1.63 (41)

DAMPER OPENING

11.75

54.00

(1372)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

(298)

Fig. 6 — 50PEC18 Bottom Return Cabinet Dimensions — Left Hand Piping

0.59 (15)

9.90

(251)

4.90

(125)

a50-8342

Page 9

21.0

(533)

CONTROL ACCESS DOOR

FRONT VIEW

16.0

(406)

5.0

(127)

7.9

(201)

DISCHARGE

AIR

INLET

AIR

SIDE

VIEW

3.5

(89)

21.0

(533)

12.0

(305)

(25)

1.0

1.0 (25)

R.H.

REAR

ACCESS

(NOTE 2)

4.5

(114)

BOTTOM VIEW

20.0

(508)

48.0

(1219)

48.0

(1219)

REAR VIEW

43.7

(1110)

Filter located behind return air grille and requires removal of cabinet front for access.

4.12 (105)

11.50 (292)

R.H. PIPE AND

ELECTRIC AREA

.75 (19)

21.0

(533)

.50 (13)

12.0 (305)

48.0

(1219)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

Fig. 7 — 50PEC09-15 Front Return Cabinet Dimensions — Right Hand Piping

a50-8343

Page 10

21.00 (533)

CONTROL ACCESS DOOR

FRONT VIEW

16.00 (406)

5.00

(127)

7.90

(201)

DISCHARGE

30˚

AIR

INLET

AIR

SIDE VIEW

3.50 (89)

21.00 (533)

12.00 (305)

(25)

1.00

1.00(25)

RH REAR

ACCESS

(NOTE 2)

4.12

(105)

BOTTOM VIEW

20.00

(508)

54.00

(1372)

54.00

(1372)

REAR VIEW

48.00

(1219)

Filter located behind return air grille and requires removal of cabinet front for access.

4.12

(105)

.50 (13)

11.50 (292)

.75 (19)

21.00 (533)

12.00 (305)

R.H. PIPE AND ELECTRIC AREA (NOTE 2)

54.00

(1372)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

Fig. 8 — 50PEC18 Front Return Cabinet Dimensions — Right Hand Piping

a50-8344

Page 11

(89)

L.H.

(NOTE 2)

.50 (13)

11.50 (292)

.75 (19)

4.12 (105)

(Note 2)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

Fig. 9 — 50PEC09-15 Front Return Cabinet Dimensions — Left Hand Piping

a50-8345

Page 12

21.00 (533)

CONTROL ACCESS DOOR

FRONT VIEW

12.60 (320)

1.50

(38.1)

7.90

(201)

DISCHARGE

AIR

30˚

AIR

INLET

SIDE VIEW

3.50 (89)

21.00 (533)

.50

(13)

11.50 (292)

.75

(19)

4.12

(105)

L.H. PIPE AND ELECTRIC (Note 2)

AREA

REAR VIEW

54.00

(1372)

54.00

(1372)

48.00

(1219)

Filter located behind return air grille and requires removal of cabinet front for access.

BOTTOM VIEW

REAR

ACCESS

(Note 2)

4.50

(114)

1.00 (25)

20.00 (508)

1.00 (25)

21.00 (533)

12.00 (305)

54.00

(1372)

NOTES:

1. Dimensions are shown in inches. Dimensions in parentheses are in millimeters.

2. Access is reduced if optional disconnect box is selected.

3. Optional autoflow valve, motorized water valve and disconnect box are shown.

Fig. 10 — 50PEC18 Front Return Cabinet Dimensions — Left Hand Piping

a50-8346

Page 13

Power Supply

Blower Deck

Blower Access Panel

Compressor

Access

Panel

Control Box

40.98

(1041)

4.46

(113)

0.75

(19)

0.75

(19)

*20.50

(521)

11.54

(293)

*16.66

(423)

30°

0.87

(22)

Hard Wire

Power Supply

Blower Deck

Blower Access Panel

Compressor

Access

Panel

Control Box

7.50

(191)

0.87

(22)

11.54

(293)

3.42

(87)

*16.66

(423)

30°

3.01

(76)

5.36

(136)

0.75

(19)

0.75

(19)

4.46

(113)

20.50

(521)

40.98

(1040)

3.01

(76)

5.36

(136)

Optional

Motorized

Water Valve

Optional

Autoflow

Valve

Optional

Fused Disconnect Box

(mounted to cabinet

not chassis)

Optional

Motorized

Water Valve

Optional

Autoflow

Valve

3.56

(90)

7.50

(191)

3.42

(87)

*3.56

(90)

Optional Fused

Disconnect Box

(mounted to cabinet

not chassis)

Power supply enters

Bottom of Box

Optional Disconnect

Only Box (All Configurations)

Power supply enters

Bottom of Box

4.46

(113)

4.56

(116)

Power supply enters

Bottom of Box

a50-8347

Right Hand Configuration

Left Hand Configuration

Fig. 11 — 50PEC09-15 Chassis Dimensions — Bottom Return

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

*If optional subbase is selected or if unit is installed raised above the floor, add 4.9 in. to dimension.

NOTES:

Page 14

not chassis)

Optional Fused

Disconnect Box

(mounted to cabinet

Optional

Autoflow

Valve

Power supply enters

Bottom of Box

Optional

Motorized

Water Valve

Power supply enters

Optional Disconnect

Only Box (All Configurations)

Bottom of Box

4.56

(116)

4.46

(113)

a50-8348

40.98

(1041)

Control Box

20.50

(521)

(19)

0.75

Panel

Access

Compressor

7.38

(187)

(762)

30.00

Blower Screen

(76)

3.01

5.36

(136)

Hard Wire

Power Supply

0.87

(22)

30°

Control Box

16.66

(423)

(191)

3.56

(90)

3.42

(87)

11.54

(293)

Blower Deck

Right Hand Configuration

16.66

(423)

Filter

4.46

(19)

0.75

(113)

7.50

Left Hand Configuration

30°

5.36

(136)

Power Supply

(76)

3.01

0.87

(22)

3.42

(87)

7.50

(191)

3.56

(90)

(293)

11.54

Fig. 12 — 50PEC09-15 Chassis Dimensions — Front Return

(19)

0.75

4.46

(113)

Panel

Access

Compressor

7.38

(187)

40.98

(1040)

Blower Deck

(521)

20.50

Filter

Blower Screen

(19)

0.75

30.00

(762)

Valve

Optional

Autoflow

Optional

Motorized

Water Valve

Optional

not chassis)

(mounted to cabinet

Fused Disconnect Box

Bottom of Box

Power supply enters

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

3. Chassis can mount directly on floor.

NOTES:

Page 15

not chassis)

Optional Fused

(mounted to cabinet

Disconnect Box

Optional

Autoflow

Valve

Power supply enters

Bottom of Box

Optional

Water Valve

Motorized

Power supply enters

Only Box (All Configurations)

Optional Disconnect

Bottom of Box

4.56

(116)

4.46

(113)

46.98

(1193)

Control Box

*20.50

(521)

(19)

0.75

Panel

Access

Compressor

a50-8349

(76)

3.01

(136)

Hard Wire

Power Supply

0.87

(22)

30˚

Control Box

(423)

*16.66

7.5 (191)

3.56

(90)

3.43

(87)

11.54

(293)

Valve

Optional

Autoflow

inyl Hose

5/8" ID V

Condensate

(15.8mm)

(19)

0.75

4.46

(113)

Panel

Access

Compressor

Right Hand Configuration

Optional

Motorized

Hard Wire

5.36

Power Supply

(136)

3.01

(76)

0.87

30˚

(22)

Water Valve

Blower Deck

(423)

*16.66

(87)

3.42

7.50

(191)

3.56

Blower Access Panel

(90)

4.49

11.54

(114)

Condensate

(293)

0.75

(19)

5/8" ID Vinyl Hose

Left Hand Configuration

Fig. 13 — 50PEC18 Chassis Dimensions — Bottom Return

46.98

(1193)

Blower Deck

(521)

20.50

Blower Access Panel

0.75

(19)

Valve

Optional

Autoflow

Optional

Motorized

Water Valve

Optional

not chassis)

Disconnect Box

(mounted to cabinet

Bottom of Box

Power supply enters

*If optional subbase is selected, add 4.9 in. to dimension.

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

NOTES:

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

Page 16

(76)

3.01

5.36

(187)

Hard Wire

Power Supply

not chassis)

Optional Fused

(mounted to cabinet

Disconnect Box

Optional

Autoflow

Valve

0.87

(22)

30˚

Power supply enters

Bottom of Box

Optional

(423)

16.66

Water Valve

Motorized

7.5 (191)

3.56

(90)

Power supply enters

Only Box (All Configurations)

Optional Disconnect

(87)

3.43

11.54

Bottom of Box

4.56

(116)

(293)

4.46

(113)

46.98

(1193)

Valve

Optional

Autoflow

Optional

Motorized

Water Valve

Control Box

Blower Deck

20.50

(521)

(19)

0.75

Panel

Access

Compressor

7.38

(187)

a50-8350

Blower Screen

(914)

36.00

Filter

(19)

0.75

4.49

(114)

46.98

(1193)

Control Box

Access

Compressor

Blower Deck

(521)

20.50

Panel

7.38

(187)

Filter

4.46

(113)

0.75

Blower Screen

0.75

(19)

36.00

(914)

Right Hand Configuration

Hard Wire

5.36

Power Supply

(136)

3.01

(76)

0.87

30˚

(22)

Valve

Optional

Autoflow

(423)

16.66

(87)

3.42

Optional

Motorized

Water Valve

7.50

(191)

3.56

(90)

(293)

11.54

Optional

not chassis)

Disconnect Box

(mounted to cabinet

Left Hand Configuration

Bottom of Box

Power supply enters

1. Dimensions shown are in inches. Dimensions in parentheses are in millimeters.

NOTES:

Fig. 14 — 50PEC18 Chassis Dimensions — Front Return

2. Optional autoflow valve, motorized water valve and disconnect box are shown.

3. Chassis can mount directly on floor.

Page 17

Step 2 — Check Unit — Upon receipt of shipment at

the jobsite, carefully check the shipment against the bill of lading. Make sure all units have been received. Inspect the carton or crating of each unit, and inspect each unit for damage. Ensure the shipping company makes proper notation of any shortages or damage on all copies of the freight bill. Concealed damage not discovered during unloading must be reported to the shipping company within 15 days of receipt of shipment.

NOTE: It is the responsibility of the purchaser to file all necessary claims with the shipping company.

STORAGE

CAUTION

DO NOT store or install console units in corrosive environments or in locations subject to temperature or humidity extremes (e.g., attics, garages, rooftops, etc.). Corrosive conditions and high temperature or humidity can significantly reduce performance, reliability, and service life. Always move units in an upright position. Tilting units on their sides may cause equipment damage.

Upon the arrival of equipment at the jobsite, immediately

store units in their shipping cartons in a clean, dry area. Store

units in an upright position at all times. Stack units a maximum of 3 units high. Use pallets to separate each layer of units. DO NOT remove equipment from shipping cartons until equipment is required for installation.

UNIT PROTECTION — Cover console units on the jobsite with either shipping cartons, vinyl film, or an equivalent protective covering. Cap the open ends of pipes stored on the jobsite. In areas where painting, plastering, or the spraying of fireproof material has not been completed, all due precautions must be taken to avoid physical damage to the units and contamination by foreign material. Physical damage and contamination may prevent proper start-up and may result in costly equipment clean-up.

Examine all pipes, fittings, and valves before installing any of the system components. Remove any dirt found on these components.

Step 3 — Mount Unit

1. Unpack the unit from the shipping carton. Remove the front cabinet by lifting up and away from the backplate. Protect the cabinet from damage during installation by returning it to its original vinyl pack until required.

2. Remove compressor isolation plate shipping bolts (4), as shown in Fig. 15.

3. Using a carpenter’s square and a level, ensure the unit is level. Shim the unit if necessary to assure proper installation.

Poor or inadequate installation may result in noisy unit operation or unattractive appearance.

4. Select the proper fasteners to connect the backplate securely to the wall.

5. Fasten the backplate onto the wall through the screw holes located in the back flange. Secure the subbase in place.

Step 4 — Wire Electrical Connections

WARNING

To avoid possible injury or death due to electrical shock, open the power supply disconnect switch and secure it in an open position during installation.

CAUTION

Use only copper conductors for field-installed electrical wiring. Unit terminals are not designed to accept other types of conductors.

All field-installed wiring, including the electrical ground, MUST comply with National Electrical Code (NEC) as well as all applicable local codes. In addition, all field wiring must conform to the Class II temperature limitations described in the NEC.

Consult the unit wiring diagram located on the inside of the compressor access panel to ensure proper electrical hookup. The installing (or electrical) contractor must make the field connections shown in Fig. 16 when using field-supplied disconnect.

Refer to unit wiring diagrams Fig. 17-29 for a schematic of the field connections, which must be made by the installing (or electrical) contractor. Operating voltage must be within voltage range shown in Table 2.

Make all final electrical connections with a length of flexible conduit to minimize vibration and sound transmission to the building.

SUPPLY VOLTAGE — Operating voltage to unit must be within voltage range indicated on unit nameplate.

EXTERNAL LOOP POWER CONNECTION — If the unit will be connected to an external loop pump or flow controller, connect the pump to the loop pump terminal block PB1. The maximum power handling is 4 amps at 240-v. The pumps will automatically cycle as required by the unit.

230-V OPERATION — All 208/230-v units are factorywired for 208-v. The transformer wiring may be switched for 230-v operation (as illustrated on the wiring diagrams) by switching the RED and ORG leads at L1.

SHIPPING BOLTS

Fig. 15 — Remove 4 Shipping Bolts on

Compressor Isolator Plate

HEAT PUMP

A = Two power wires for single-phase units. B = 1 heat/1 cool/manual or auto changeover remote 24-V thermostat.

NOTE: All customer-supplied wiring to be copper only and must conform to national and local electrical codes. Wiring shown with dashed lines must be field-supplied and field-installed. “B” wiring only required with systems using remote-mounted thermostats.

FIELD SUPPLIED

DISCONNECT SWITCH

ROOM THERMOSTAT

Disconnect electrical power source to prevent injury or death from electrical shock.

Use copper conductors only to prevent equipment damage.

WARNING

CAUTION

Fig. 16 — Typical Field-Installed Wiring

Page 18

a50-8452

Complete C

AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Relay CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch PB — Power Terminal Block RAS — Return Air Sensor RVS — Reversing Valve Solenoid TRANS WV

---------- Field Line Voltage Wiring

Transformer

—

Wate r Valve

—

Field Low-Voltage Wiring Printed Circuit Trace Option Low Voltage Wiring

LEGEND

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lok

*Optional wiring. †Registered trademark of AMP Incorporated.

SEE NOTE 9

Complete C

BLOWER MOTOR WIRING

UNIT SIZE POLE A POLE B

09-18 5 4

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units; 265-V (BRN) lead for 265/1/60 units; or 208-V (RED) lead for 208/1/60 units.

For 230/1/60 operation, switch the RED and ORG leads at L1 and insulate the RED lead. Transformer is energy limiting or may have a circuit breaker.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5. For remote sensor, position jumper J1 on upper 2 pins.

6. For F position, position jumper on both pins.

For C, position jumper on one pin.

7. Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

8. Mate-N-Lok† plug is optional.

9. Factory-cut jumper (JW1). Dry contact will be available between AL1 and AL2.

Fig. 17 — 50PEC Unit Manual or Auto Changeover with Complete C Controller Wiring

Page 19

COMPLETE C

a50-8327.eps

PEC

PEC12-18

PEC

AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Relay CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection FSS — Fan Speed Switch HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch PB — Power Terminal Block RVS — Reversing Valve Solenoid TRANS — Tr a n sf o r me r WV — Water Valve

---------- Field Line Voltage Wiring

Field Low-Voltage Wiring Option Low-Voltage Wiring Printed Circuit Trace

Fig. 18 — 50PEC Unit with Complete C and LON Controllers

LEGEND

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

*Optional wiring.

†Registered trademark of Echelon Corporation.

Wire Nut

Mate-N-Lock

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units, 265-V (BRN) lead for 265/1/60 units, 240-V (ORG) lead for 240/1/50 units, or 208-V (RED) lead for 208/1/60 units.

Rewire transformer L1 connection if voltage is 230-1-60 or 220-1-50, insulate unused lead.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5. Refer to LonWorks† Installation, Application, and Operation manual for control wiring to the unit. Low voltage wiring must be “class 1” and voltage rated equal to or greater than unit supply voltage.

6. Factory-cut jumper (JW1). Dry contact will be available between AL1 and AL2.

7. Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top 2 standoffs as shown.)

Page 20

DELUXE D

AL — Alarm Relay Contacts BM — Blower Motor CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection FSS — Fan Speed Switch HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch PB — Power Terminal Block RVS — Reversing Valve Solenoid TRANS — Transformer WV — Wate r Valve

---------- Field Line Voltage Wiring

*Optional wiring.

Field Low-Voltage Wiring Printed Circuit Trace

Fig. 19 — 50PEC Unit with Deluxe D and LON Controllers

a50-8328

LEGEND

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units, 265-V (BRN) lead for 265/1/60 units, 240-V (ORG) lead for 240/1/50 units, or 208-V (RED) lead for 208/1/60 units.

Rewire transformer L1 connection if voltage is 230-1-60 or 220-1-50, insulate unused lead.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5. Refer to Microprocessor Control Installation, Application, and Operation manual for control wiring to the unit. Low voltage wiring must be “class 1” and voltage rated equal to or greater than unit supply voltage.

6. Factory-cut jumper (JW4). Dry contact will be available between AL1 and AL2.

7. Transformer secondary ground via Deluxe D board standoffs and screws to control box. (Ground available from top 2 standoffs as shown.)

Page 21

DELUXE D

AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Relay CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch NLL — Night Low Limit Switch PB — Power Terminal Block RAS — Return Air Sensor RVS — Reversing Valve Solenoid TRANS — Transformer WV — Wate r Valve

---------- Field Line Voltage Wiring

*Optional wiring.

Field Low-Voltage Wiring Printed Circuit Trace

LEGEND

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker

Relay Contacts-N.O.

Switch-Temperature

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

DELUXE D

a50-8329

PEC09-18

NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units, 265-V (BRN) lead for 265/1/60 units, 240-V (ORG) lead for 240/1/50 units, or 208-V (RED) lead for 208/1/60 units.

Rewire transformer L1 connection if voltage is 230-1-60 or 220-1-50, insulate unused lead.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

6. Factory-cut jumper (JW4). Dry contact will be available between AL1 and AL2.

7. Transformer secondary ground via Deluxe D board standoffs and screws to control box. (Ground available from top 2 standoffs as shown.)

Fig. 20 — 50PEC Unit Manual or Auto Changeover and Deluxe D Controller

Page 22

POWER SUPPLY

REFER TO DATA PLATE

USE COPPER CONDUCTORS ONLY.

SEE NOTE 2

REFER TO DISCONNECT

BOX FOR OPTIONAL

POWER SUPPLY CONNECTION

OPTIONAL CORD CONNECTION

CB*

24V

GROUND

SEE NOTE 3

TRANS

L2 (ribbed)

L1 (plain)

BLK

ORG 230V

NEUTRAL ON 265V SYSTEMS

PB 1

GROUND

RED

BLK

COM

FSS

COMPRESSOR

BLU

RED

BLK

B (HIGH)

A (LOW)

RED

BLK

CAP

RED

BLK

BRN

YEL

BLK

CAP

TYPICAL HEAT PUMP T-STAT

SEE NOTE 5

CLASS 1 OR 2 WIRING ACCEPTABLE OUTSIDE CONTROL BOX

BRN YEL

GROUND PB

BLK

RED

(220V)

ORG (240V)

TRANSFORMER

SEE NOTE 7

TRANS

CB 24V

BLU

BRN

CLASS 1 WIRING REQUIRED INSIDE CONTROL BOX

COMPRESSOR

COOLING

FAN

24 VAC

COMMON

ALARM

YEL

AL1

AL2

ORGYEL

BR BRG CCG

TEST PINS

SEE NOTE 4

JW3

FP1

JW2

FP2

DIP SWITCH

JW1

OFF ON

SEE

ALARM

NOTE 6

RELAY

BRNYEL

BRNBRNGRYYEL

PM: DISABLED/ ENABLED

STAGE 2: 2/1

NOT USED

FP1/FP2 FAULTS: 3/1

COMPLETE C

MICRO-

PROCESSOR

CONTROL

LOGIC

COMPR. RELAY

STATUS LED

TRANSFORMER PRIMARY

SEE NOTE 7

YELBRN

2 3

LOC

4 5

FP1

6 7

FP2

8 9

CO12

24V DC

EH1 EH2

LEAD COLORS

VOLTAGE

RED RED BLU BRN GRY GRY VIO VIO BRN ORG NOT USED

YEL

115 208 230 265

LEAD COLOR

WHT RED ORG BRN

LOC

FP1

SEE NOTE 4

FP2

RVS

BLOWER MOTOR WIRING

UNIT SIZE POLE A POLE B

09 5 4 12 4 3 15 4 3 18 4 3

COMPLETE

CONTROL

LEGEND

AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Relay CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection FSS — Fan Speed Switch HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch PB — Power Terminal Block PM — Performance Monitor RVS — Reversing Valve Solenoid TRANS — Transformer WV — Water Valve

---------- Field Line Voltage Wiring

Field Low-Voltage Wiring

Fig. 21 — 50PEC Unit Remote-Mounted Thermostat with Complete C Controller Wiring

Printed Circuit Trace Option Low Voltage

Wiring

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker Relay Contacts-N.O.

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

*Optional wiring. NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units; 265-V (BRN) lead for 265/1/60 units; or 208-V (RED) lead for 208/1/60 units.

For 230/1/60 operation, switch the RED and ORG leads at L1 and insulate the RED lead.

Transformer is energy limiting or may have a circuit breaker.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5. Typical heat pump thermostat wiring shown. Refer to thermostat Installation Instructions for wiring to the unit.

6. 24-V alarm signal shown. For dry alarm contact, cut JW1 jumper and dry contact will be available between AL1 and AL2.

7. Transformer secondary ground via Complete C board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

Page 23

POWER SUPPLY

REFER TO DATA PLATE

CAP

DELUXE

CONTROL

BR 2

(HI)

USE COPPER CONDUCTORS ONLY.

CLASS 1 OR 2 WIRING ACCEPTABLE OUTSIDE CONTROL BOX

O G R C

TYPICAL HEAT

PUMP T-STAT

SEE NOTE 5

BRN

ORG

YEL YEL YEL

GROUND

OVERRIDE

WITH DIGITAL T-STAT

OV OV

LUG

SEE NOTE 2

REFER TO DISCONNECT

BOX FOR OPTIONAL

POWER SUPPLY CONNECTION

OPTIONAL CORD CONNECTION

BRN

CLASS 1 WIRING REQUIRED INSIDE

CLOSED=UNOCCUPIED

NLL

SEE

NOTE 7

COMPRESSOR

COOLING FAN 24 VAC COMMON ALARM

RED

TIME CLOCK

BRN

WHT

YEL

RED

OVERRIDE OVERRIDE

TRANSFORMER

BR 1

(LO)

LEGEND

AL — Alarm Relay Contacts BM — Blower Motor BR — Blower Relay CAP — Capacitor CB — Circuit Breaker CO — Sensor, Condensate Overflow CR — Compressor Relay DM — Damper Motor FP1 — Sensor, Water Coil Freeze Protection FP2 — Sensor, Air Coil Freeze Protection FSS — Fan Speed Switch HP — High-Pressure Switch JW1 — Jumper Wire for Alarm LOC — Loss of Charge Pressure Switch NLL — Night Low Limit OV — Override PB — Power Terminal Block PM — Performance Monitor RVS — Reversing Valve Solenoid TRANS — Transformer WV — Water Valve

---------- Field Line Voltage Wiring

Fig. 22 — 50PEC Unit Remote-Mounted Thermostat with Deluxe D Controller Wiring

Y1 Y1 W1

O/W2

G R C

AL1

AL2

NSB

ESD

OVR

R NO1 NC1

COM

NO2 NC2

COM

GROUND

1 2 3 4 5 6 7 8 9

CCG

FSS

RED RED BLU BRN GRY GRY VIO VIO BRN ORG NOT USED YEL

BRN

YEL

BLU

RED

COMPRESSOR

BLK

B (HIGH)

A (LOW)

RED

BLK

TRANSFORMER PRIMARY

LEAD COLORS

VOLTAGE

BLOWER MOTOR WIRING

UNIT SIZE POLE A POLE B

115 208 230 265

LOC

FP1

FP2

RVS

LEAD COLOR

SEE NOTE 4

WHT RED ORG BRN

09 5 4 12 4 3 15 4 3 18 4 3

NEUTRAL ON 265V SYSTEMS

CB*

TRANS

24V

YEL

BLU

1 2 3 4 5 6 7 8

ACC1 RELAY

ACC2 RELAY

ALARM

RELAY

SEE

NOTE 6

AL2 DRY

OFF ON

DIP SWITCH

PACKAGE

H A

PB 1

L2 (ribbed)

GROUND

L1 (plain)

BLK

ORG 230V

R C S

COM2 COM1

JW4

TEST

PINS

PM: DISABLE/ ENABLE

UNIT STAGE: 2/1

T-STAT: HEAT COOL/ HEAT PUMP

RV ON B/RV ON O

DEHUMID/NORMAL

NOT USED

BOILERLESS: ENABLE/DISABLE

BOILERLESS: 40°F/50°F

RED

SEE NOTE 3

DELUXE D

MICROPROCESSOR

CONTROL LOGIC

JW3 FP1 LOW

JW2 FP2 LOW JW1 LP N.O.

OFF ON

DIP SWITCH

PACKAGE

STATUS

SEE NOTE 4

CAP

RED

BLK

FAN ENABLE

GRY

COM

GRY

COM

NO NC

TEST

FAULT

RELAY

ACC1

FUNCTIONS

3 4

ACC2

FUNCTIONS

6 7

H: HI FAN/DEHUMID

NOT USED

BRN

YEL

RELAY

FAN SPEED RELAY

LOC

FP1

FP2

CO12

24V DC

EH1 EH2

COMPR. RELAY

*Optional wiring. NOTES:

1. Compressor and blower motor thermally protected internally.

2. All wiring to the unit must comply with local

Field Low-Voltage Wiring Printed Circuit Trace Option Low Voltage Wiring

Relay/Contactor Coil

Solenoid Coil

Thermistor

Circuit Breaker Relay Contacts-N.O.

Switch-High Pressure

Switch-Low Pressure

Ground

Wire Nut

Mate-N-Lock

codes.

3. Transformer is wired to 115-V (WHT) lead for 115/1/60 units; 265-V (BRN) lead for 265/ 1/60 units; or 208-V (RED) lead for 208/1/60 units. For 230/1/60 operation, switch the RED and ORG leads at L1 and insulate the RED lead. Transformer is energy limiting or may have a circuit breaker.

4. FP1 thermistor provides freeze protection for WATER. When using ANTI-FREEZE solutions, cut JW3 jumper.

5. Typical heat pump thermostat wiring shown. Refer to thermostat Installation Instructions for wiring to the unit.

6. 24-V alarm signal shown. For dry alarm contact, cut AL2 DRY (JW4) jumper and dry contact will be available between AL1 and AL2.

7. Transformer secondary ground via Deluxe D board standoffs and screws to control box. (Ground available from top two standoffs as shown.)

Page 24

PREMIER

LINK

PWR

HS1/EXH/RVS

COMPLETE

CONTROL

LEGEND

CR — Control Relay LWT — Leaving Water Temperature Sensor SAT — Supply Air Temperature Sensor SPT — Space Temperature Sensor

NOTE: Reversing valve is on in Cooling mode.

S A

Fig. 23 — PremierLink™ Controller Applications with Complete C Control

PWR

CMPSAFE

PREMIER

LINK

CMP1

FAN

PWR

AL1

AL2

DELUXE

CONTROL

LEGEND

LWT — Leaving Water Temperature Sensor SAT — Supply Air Temperature Sensor SPT — Space Temperature Sensor

NOTE: Reversing valve is on in Cooling mode.

S P

S A

Fig. 24 — PremierLink Controller Applications with Deluxe D Control

PWR

CMPSAFE

HS2

HS1

CMP2

CMP1

FAN

O/W2

AL1

Page 25

Fig. 25 — Units with Complete C and WSHP Open Multiple Protocol Controls

WHSP-OPEN

A50-8355

LEGEND

BM — Blower Motor

BR — Blower Relay

CO — Condensate Overflow

LWT — Leaving Water Temperature

N.C. — Normally Closed

OAD — Outside Air Damper

OCC — Occupancy Input Contact

RH — Relative Humidity

SAT — Supply Air Temperature

SPT — Space Temperature

Page 26

Fig. 26 — Units with Deluxe D and WSHP Open Multiple Protocol Controls

WSHP-OPEN

A50-8354

LEGEND

BM — Blower Motor

CO — Condensate Overflow

LWT — Leaving Water Temperature

N.C. — Normally Closed

OAD — Outside Air Damper

OCC — Occupancy Input Contact

RH — Relative Humidity

SAT — Supply Air Temperature

SPT — Space Temperature

Page 27

A50-8356

WSHP-OPEN

LEGEND

CO — Condensate Overflow

LWT — Leaving Water Temperature

N.C. — Normally Closed

OAD — Outside Air Damper

OCC — Occupancy Input Contact

RH — Relative Humidity

SAT — Supply Air Temperature

SPT — Space Temperature

Fig. 27 — Units with Complete C, ECM and WSHP Open Multiple Protocol Controls

Page 28

A50-8353

WSHP-OPEN

LEGEND

CO — Condensate Overflow

LWT — Leaving Water Temperature

N.C. — Normally Closed

OAD — Outside Air Damper

OCC — Occupancy Input Contact

RH — Relative Humidity

SAT — Supply Air Temperature

Fig. 28 — Units with Deluxe D, ECM and WSHP Open Multiple Protocol Controls

SPT — Space Temperature

Page 29

CHANNEL

DESIGNATION

CONNECTION

PIN NUMBERS

Factory Wiring

Field Wiring

N/A AO (0-10Vdc/2 - 10Vdc) J2 4 and 5* Analog Output 1

N/A BO Relay (24VAC, 1A) J1, 4* Binary Output 1 (G)

Outside Air Damper N/A AO (0-10Vdc/2 - 10Vdc) J22 1 and 2* Analog Output 2

located at the end of network

Gnd

N/A BO Relay (24VAC, 1A) J1, 5* Binary Output 2

Rnet+

Rnet-

+12V

Supply Fan On/Low Speed

(3 Speed Only)

Auxiliary Heat or 2-Position Water Loop

Economizer

Reversing Valve (B or O Operation) N/A BO Relay (24VAC, 1A) J1, 6* Binary Output 3 (RV)

Compressor 2nd Stage N/A BO Relay (24VAC, 1A) J1, 7 Binary Output 4 (Y2)

Compressor 1st Stage N/A BO Relay (24VAC, 1A) J1, 8 Binary Output 5 (Y1)

Dehumidification Relay N/A BO Relay (24VAC, 1A) J11, 7 and 8 (NO) Binary Output 6

*These inputs are configurable.

Fan Speed Medium/Low (3 Speed Only) N/A BO Relay (24VAC, 1A) J11, 5 and 6 (NO)* Binary Output 7

Fan Speed High/Low (3 Speed Only) N/A BO Relay (24VAC, 1A) J11, 2 and 3 (NO)* Binary Output 8

Fig. 29 — WSHP Open Control

segment only.

LEGEND

with at least two #6 x 1 in. self-tapping screws. Allow adequate clearance for wiring.

sors requiring a separate isolated 24 vac power source will not utilize WSHP termi-

nals J4-1, or 4.

1. Mount the water source heat pump controller in the equipment controls enclosure

2. Verify sensor power and wiring requirements prior to making any terminations. Sen-

AI — Analog Input

AO — Analog Output

BI — Binary Input

-Gnd

+ 24vac

NOTES:

BO — Binary Output

SPT — Space Temperature

a50-8380

(If not installed, it must be connected to DO-5)

(DI-3/Dry Contact)

Fan (DO-1) (Fan On or Low Speed)

Condensate

Overflow Switch

RED

BRN

GRN

WHT

Comp Status (DI-5)

LWT (Input 6)

SAT (LAT) (Input 7)

Aux Heat (DO-2)

Comp #1 (DO-5)

Comp #2 (DO-4)

Reversing Valve (DO-3)

RED

BLU

PINK

YLW

ORN

WTR. Loop Econ. (AO 1)

AO1 – Aux Reheat or Cond.

VIO

BRN

ORN

PINK

BLU

2 3

OA DAMPER (AO-2)

FAN SPEED (DO-7) (MED OR LOW)

DEHUMIDIFY OUTPUT CONTACT (DO-6) (FACTORY OPTION)

J11

J22

WSHP Open Inputs and Outputs Table

SPT PLUS Sensor

Shown

INPUT/OUTPUT TYPE PART NUMBERS TYPE OF I/O

Inputs

Space Temperature Sensor SPS, SPPL, SPP Communicating J13, 1 - 4 Local Access Port

Space Relative Humidity 33ZCSENSRH-01 AI (4 - 20mA) J4, 5 and 6 Analog Input 1

FIELD INSTALLED

FAN SPEED (DO-8) (HIGH OR FAN ON )

123 45678

SPT PLUS

J14

2 3

J17

J19

GREEN

WHITE

BLACK

RED

Indoor Air Quality 33ZCSENCO2 AI (4 -20mA) J4, 2 and 3 Analog Input 2

Condensate Switch N/A BI (Dry Contacts) J1, 2 Binary Input 3

Stage 1 Compressor Status N/A BI (Dry Contacts) J1, 10 Binary Input 5

Leaving Condenser Water Temperature 10K Type II AI (10K Thermistor) J2, 1 and 2 Analog Input 6

To WSHP Controller Rnet Terminals (J13)

Supply Air Temperature 33ZCSENSAT AI (10K Thermistor) J2, 3 and 4 Analog Input 7

Outputs

Modulating Valve (Auxiliary Heat/Water

Economizer)

012207-1BT485BT

LED1

Install BT485 where device is

J20

J1 J2

+24vac

SENSOR

4-20mA

SPACE CO2

+24vac

SENSOR

4-20mA

SPACE RH

FIELD INSTALLED (OPTIONAL) – SEE NOTE 2

Field Installed

123 4

RED

BLACK

WHITE

GREEN

123 4

Local Access Port

J12

J13

LSB

MSTP Baud

9600 19.2k 38.4k 76.8k

MSB

3 45

SW3

7 8

FIELD INSTALLED

SPT PLUS Sensor

Shown

GREEN

WHITE

BLACK

RED

To WSHP Controller

Rnet Terminals (J13)

Gnd

Rnet+

Rnet-

+12V

Page 30

Table 2 — Electrical Data — 50PEC Units

50PEC

UNIT SIZE

FLA — Full Load Amps HACR — Heating, Air Conditioning and Refrigeration LRA — Locked Rotor Amps RLA — Rated Load Amps

VOLTAGE

CODE

1 115-1-60 104/126 1 8.1 46.5 0.6 8.6 10.7 15 3 208/230-1-60 197/254 1 4.5 23.0 0.4 4.9 6.0 15 4 265-1-60 239/292 1 3.1 24.0 0.4 3.5 4.3 15 1 115-1-60 104/126 1 10.6 55.8 1.0 11.6 14.3 25 3 208/230-1-60 197/254 1 5.2 24.0 0.6 5.8 7.1 15 4 265-1-60 239/292 1 4.2 25.0 0.4 4.6 5.7 15 3 208/230-1-60 197/254 1 6.1 30.0 0.8 6.9 8.4 15 4 265-1-60 239/292 1 4.7 28.5 0.6 5.3 6.5 15 3 208/230-1-60 197/254 1 6.8 38.0 0.7 7.5 9.2 15 4 265-1-60 239/292 1 6.2 29.0 0.6 6.8 8.4 15

LEGEND

V-P H- Hz

MIN/MAX

VOLTAGE

COMPRESSOR

QTY RLA LRA

Step 5 — Wire Low Voltage Connections

WATER FREEZE PROTECTION — The Aquazone™ control allows the field selection of source fluid freeze protection points through jumpers. The factory setting of jumper JW3 (FP1) is set for water at 30 F. In earth loop applications, jumper JW3 should be clipped to change the setting to 10 F when using antifreeze in colder earth loop applications. See Fig. 30.

FAN MOTO R

FLA

TOTAL UN IT

FLA

MIN CIRCUIT

AMPS

MAX

FUSE/HACR

WATER SOLENOID VALVES — An external solenoid valve(s) should be used on ground water installations to shut off flow to the unit when the compressor is not operating. A slow closing valve may be required to help reduce water hammer. Figure 31 shows typical wiring for a 24-vac external solenoid valve. Figures 32 and 33 illustrate typical slow closing water control valve wiring for Taco 500 Series and Taco ESP Series valves. Slow closing valves take approximately 60 sec. to open (very little water will flow before 45 sec.). Once fully open, an end switch allows the compressor to be energized (only on valves with end switches). Only relay or triac based electronic thermostats should be used with slow closing valves. When wired as shown, the slow closing valve will operate properly with the following notations:

1. The valve will remain open during a unit lockout.

2. The valve will draw approximately 25 to 35 VA through the “Y” signal of the thermostat.

a50-7467tf

AQUAZONE CONTROL (Complete C Control Shown)

Fig. 30 — Typical Aquazone Control Board

Jumper Locations

ACCESSORY CONNECTIONS — Terminal labeled A on the control is provided to control accessory devices such as water valves, electronic air cleaners, humidifiers, etc. This signal operates with the compressor terminal. See Fig. 31. Refer to the specific unit wiring schematic for details.

NOTE: The A terminal should only be used with 24-v signals — not line voltage signals.

Terminal Strip

Typical

24 VAC

Water

Valve

IMPORTANT: Connecting a water solenoid valve can overheat the anticipators of electromechanical thermostats. Only use relay based electronic thermostats.

a50-8441

HEATER SWITCH

THERMOSTAT

AMV

TACO VALVE

Fig. 32 — AMV Valve Wiring

Fig. 31 — Typical Aquazone Accessory Wiring

a50-8442

Fig. 33 — Taco SBV Valve Wiring

Page 31

OPTIONAL WALL-MOUNTED THERMOSTAT — The 50PEC water source heat pump units are built with standard internal thermostats in either manual changeover (MCO) or automatic changeover (ACO) configuration. Refer to Fig. 17-20.

When desired, the unit can be furnished with a 24-v control circuit which is field wired to a Carrier-supplied accessory remote thermostat. Most heat pump thermostats can be used with the controller. Use a thermostat with Y, G, O and W outputs. Refer to unit wiring diagrams in Fig. 21 and 22 and Aquazone Controls, Operation, and Troubleshooting Instructions for additional information.

Vendor installation instructions and additional installation information is shipped with each thermostat.

NOTE: Low-voltage wiring between the unit and the wall thermostat must comply with all applicable electrical codes (i.e., NEC and local codes), and be completed before the unit is installed.

Table 3 lists recommended wire sizes and lengths to install the thermostat. The total resistance of low-voltage wiring must not exceed 1 ohm. Any resistance in excess of 1 ohm may cause the control to malfunction because of high voltage drop.

Table 3 — Recommended Thermostat Wire Sizes

WIRE SIZE MAX WIRE LENGTH*

18-Gage 75 ft 16-Gage 125 ft 14-Gage 200 ft

*Length = Physical distance from thermostat to unit.

OPTIONAL PREMIERLINK™ CONTROLLER — This direct digital controller (DDC) allows the water source heat pump to be incorporated into a Carrier Comfort Network (CCN) system installation. PremierLink control is factoryinstalled with the Complete C controller, or field-installed with the Deluxe D control option. Refer to Fig. 23 and 24.

WSHP OPEN WIRING — The WSHP Open controller will be factory wired to the Complete C or Deluxe D control board, however, the system wiring will need to be completed utilizing WSHP Open controller wiring diagrams and the Third Party Integration (TPI) Guide. Factory installation includes harness, LWT (leaving water temperature), supply air, and condensate sensor.

WARNING

Disconnect all power to the unit before performing maintenance or service. Unit may automatically start if power is not disconnected. Failure to follow this warning could cause personal injury, death, and/or equipment damage.

Wiring Sensors to Inputs WSHP Open controller’s inputs. See Table 4.

All field control wiring that connects to the WSHP Open controller must be routed through the raceway built into the corner post. The raceway provides the UL required clearance between high and low-voltage wiring.

1. Pass control wires through the hole provided in the corner post.

2. Feed the wires through the raceway to the WSHP Open controller.

3. Connect the wires to the removable Phoenix connectors.

4. Reconnect the connectors to the board.

— Sensors can be wired to the

Field-Supplied Sensor Hardware

— The WSHP Open controller is configurable with the following field-supplied sensors. See Table 4.

Table 4 — Field-Supplied Sensors for

WSHP Open Controller

SENSOR NOTES

Space Temperature Sensor

Indoor Air Quality Sensor

Space Relative Humidity

NOTE: BACview6 Handheld or Virtual BACview can be used as the user interface.

(SPT)

Outdoor Air

Temperature Sensor

(Separate Sensor)

Sensor

Field Installed (Must be used with

WSHP Open controller.)

Network Sensor

Required only for demand

control ventilation.

Separate Sensor

For specific details about sensors, refer to the literature sup-

plied with the sensor. Wiring a SPT Sensor

— A WSHP Open controller is connected to a wall-mounted space temperature (SPT) sensor to monitor room temperature using a Molex plug.

The WSHP Open system offers the following SPT sensors.

See Table 5.

Table 5 — SPT Sensors

SENSOR

SPT

Standard

SPT Plus SPPL

SPT Pro SPP

SPT Pro

Plus

*The SPT Pro Plus fan speed adjustment has no effect in this

application.

PA RT

NUMBER

SPS

SPPF

FEATURES

• Local access port

• No operator control

• Slide potentiometer to adjust set point

• Manual on button to override schedule

• LED to show occupied status

• Local access port

•LCD display

• Manual on button to override schedule

• Warmer and cooler buttons to adjust set point

• Info button to cycle through zone and outside air temperatures, set points, and local override time

• Local access port

• LCD display

• Manual on button to override schedule

• Warmer and cooler buttons to adjust set point

• Info button to cycle through zone and outside air temperatures, set points, and local override time

• Local access port

• Fan speed*

Wire SPT sensors to the WSHP Open controller’s Rnet port. An Rnetbus can consist of any of the following combinations of devices wired in a daisy-chain configuration:

• 1 SPT Plus, SPT Pro, or SPT Pro Plus sensor

• 1 to 4 SPT Standard sensors

• 1 to 4 SPT Standard sensors and 1 SPT Plus, SPT Pro, or

SPT Pro Plus sensor

• Any of the above combinations, plus up to 2 BACview

Handheld but no more than 6 total devices NOTE: If the Rnetbus has multiple SPT Standard sensors, each

sensor must be given a unique address on the Rnetbus. See the Carrier Open Sensor Installation Guide.

Use the specified type of wire and cable for maximum signal integrity. See Table 6.

Page 32

Table 6 — Rnet Wiring Specifications

RNET WIRING SPECIFICATIONS

Description

Conductor 18 AWG

Maximum Length 500 ft

Recommended Coloring

UL Temperature 32 to 167 F

Volt ag e 300-vac, power limited

Listing UL: NEC CL2P, or better

LEGEND

AWG — American Wire Gage CMP — Communications Plenum Cable NEC — National Electrical Code UL — Underwriters Laboratories

4 conductor, unshielded, CMP,

plenum rated cable

Wiring: black, white, green, red

Jacket: white

To wire the SPT sensor to the controller:

1. Partially cut , then bend and pull off the outer jacket of the Rnet cable(s), being careful not to nick the inner insulation.

2. Strip about

/4 in. of the inner insulation from each wire.

See Fig. 34.

OUTER JACKET

a50-8443

.25 IN.

INNER INSULATION

Fig. 34 — Rnet Cable Wire

3. Wire each terminal on the sensor to the same terminal on the controller. See Fig. 25-29. Table 7 shows the recommended Rnet wiring scheme.

Table 7 — Rnet Wiring

WIRE TERMINAL

Red +12-v

Black .Rnet

White Rnet+

Green Gnd

NOTE: The wire should be connected to the terminal shown.

–

Wiring a Supply Air Temperature (SAT) Sensor — The SAT sensor is required for reheat applications.

If the cable used to wire the SAT sensor to the controller will be less than 100 ft, an unshielded 22 AWG (American Wire Gage) cable should be used. If the cable will be greater than 100 ft, a shield 22 AWG cable should be used. The cable should have a maximum length of 500 ft.

To wire the SAT sensor to the controller:

1. Wire the sensor to the controller. See Fig. 25-29.

2. Verify that the Enable SAT jumper is on.

3. Verify that the Enable SAT and Remote jumper is in the left position.

Wiring an Indoor Air Quality (IAQ) Sensor sensor monitors CO

levels. The WSHP Open controller uses

— An IAQ

this information to adjust the outside-air dampers to provide proper ventilation. An IAQ sensor can be wall-mounted or mounted in a return air duct. (Duct installation requires an aspirator box assembly.)

The sensor has a range of 0 to 2000 ppm and a linear 4 to

20 mA output. This is converted to 1 to 5 vdc by a 250-ohm,

/4 watt, 2% tolerance resistor connected across the zone con-

troller’s IAQ input terminals. NOTE: Do not use a relative humidity sensor and CO

sensor

on the same zone controller if both sensors are powered off the board. If sensors are externally powered, both sensors may be used on the same zone controller.

If the cable used to wire the IAQ sensor to the controller will be less than 100 ft, an unshielded 22 AWG (American Wire Gage) cable should be used. If the cable will be greater than 100 ft, a shield 22 AWG cable should be used. The cable should have a maximum length of 500 ft.

To wire the IAQ sensor to the controller:

1. Wire the sensor to the controller. See Fig. 25-29.

2. Install a field-supplied 250-ohm,

/4 watt, 2% tolerance resistor across the controller’s RH/IAQ and Gnd terminals.

3. Verify the the RH/IAQ jumper is set to 0 to 5-vdc.

Wiring a Relative Humidity (RH) Sensor

— The RH sensor is used for zone humidity control (dehumidification) if the WSHP unit has a dehumidification device. If not, the sensor only monitors humidity.

NOTE: Do not use a relative humidity sensor and CO on the same zone controller if both sensors are powered off the board. If sensors are externally powered, both sensors may be used on the same zone controller.

If the cable used to wire the RH sensor to the controller will be less than 100 ft, an unshielded 22 AWG (American Wire Gage) cable should be used. If the cable will be greater than 100 ft, a shield 22 AWG cable should be used. The cable should have a maximum length of 500 ft.

To wire the RH sensor to the controller:

1. Strip the outer jacket from the cable for at least 4 inches.

2. Strip

/4 in. of insulation from each wire.

3. Wire the sensor to the controller.

Step 6 — Install Supply and Return Piping

CAUTION

To ensure proper functioning of unit and system, be sure to connect entering water to upper pipe on right-hand units. On left-hand units, connect entering water to lower pipe. Failure to do so could result in equipment damage.

SUPPLY AND RETURN HOSES — Optional pressure-rated hose assemblies are available for use with units. Use the following guidelines when installing supply and return hose assemblies.

1. Install supply and return hoses fitted with swivel-joint fittings at one end to prevent the hose from twisting.

2. Use male adapters to secure the hose assembly to the unit and the riser.

3. Do not allow the hose to twist during installation. Twisting may damage the hose wall or the rubber compound.

4. Use pipe joint compound sparingly on the fitting adapters’ male pipe threads.

5. Prevent sealant from reaching the joint’s flared surfaces.

6. Do not use pipe joint compound when Teflon* thread tape is pre-applied to hose assemblies or when flared-end connections are used.

7. Maximum torque that may be applied to brass fittings is 30 ft-lb. When a torque wrench is not used, tighten brass fittings finger-tight plus one quarter turn.

8. Tighten steel fittings as necessary.

9. Use shut-off/balancing valves, flow indicators, and drain tees in the supply runout and return at each floor to aid in loop balancing and servicing.

SUPPLY AND RETURN PIPING — System piping MUST comply with all applicable codes.

1. Install a drain valve at the base of each supply and return riser to enable system flushing at start-up and during routine servicing.

*Teflon is a trademark of E. I. du Pont de Nemours and Company.

sensor

Page 33

2. Install shut-off/balancing valves and unions at each unit to allow unit removal for servicing.

NOTE: If flex hoses are used, unions are not necessary.

3. Install strainers at the inlet of each system circulating pump.

PRE-START-UP

System Cleaning and Flushing —

flushing the unit and system is the single most important step to ensure proper start-up and continued efficient operation of the system.

Cleaning and

IMPORTANT: Since loop temperatures are normally between 60 and 90 F, pipe sweating and heat loss do not occur at normal ambient temperature conditions. Insulation must be installed on loop water piping on those sections that run through unheated areas or are located outside the building. If loop temperatures are expected below the ambient dew point, the optional internal insulation (extended range) package must be ordered.

CAUTION

DO NOT bend or kink supply lines or hoses. Damage to unit may result.

4. Before making the final water connections, flush the system as described in the Pre-Start-Up section of this manual. After flushing the system, connect piping and hoses to the proper supply, return and condensate connections of the unit.

NOTE: When necessary, use adapters to connect hoses.

5. Install any other system components, as required, following manufacturer’s instructions.

6. Reinstall the front cabinet by carefully lowering the front cabinet over the chassis onto the backplate.

Step 7 — Install Condensate Piping — Connect

the unit condensate drain to the building condensate drain with a flexible, nonpressure-rated Avoid kinks in this hose to ensure an unobstructed flow of condensate from the unit to the drain.

The horizontal run of the condensate hose is usually too short to pose any drainage problems, however, the horizontal run of condensate line should be pitched at least 1 in. for every 10 ft of run (in the direction of flow). Avoid low points and unpitched piping since dirt collects in these areas and may cause stoppage and overflow.

Field installation of a trap or vent is not required unless specified by local codes. The 50PEC units are designed in a blow-thru configuration. The condensate drain pan is located on the outlet side of the blower so that the pressure in the drain pan is higher than the atmospheric pressure.

/8-in. (16 mm) ID plastic hose.

WARNING

To prevent injury or death due to electrical shock or contact with moving parts, open unit disconnect before servicing unit.

Follow the instructions below to properly clean and flush

the system:

CAUTION

DO NOT FLUSH SYSTEM THROUGH THE UNIT!

1. Verify that electrical power to the units is disconnected, and that the circulation pump is deenergized.

2. Connect the supply hose directly to the return riser valve. Use a single length of flexible hose, as shown in Fig. 35.

NOTE: If the length of hose is too short (i.e., the resulting connection would exceed the minimum bend radius of the hose), substitute two lengths of flexible hose joined together with a field-supplied, standard NPT coupling and the flare-fitting-topipe adapters provided with the hose kit (Fig. 35).

3. Open all air vents. Fill the system with water. Do not allow system to overflow. Bleed all air from the system. Check the system for leaks and repair appropriately.

4. Check and adjust the water and air level in the expansion tank.

5. Verify all strainers are in place. Start the pumps, and systematically check each vent to ensure all air is bled from the system.

6. Verify make-up water is available. Adjust make-up water appropriately to replace the air that was bled from the system. Pressure test and inspect the system for leaks and make any necessary repairs. Check and adjust the water and air level in the expansion tank.

7. Open a drain at the lowest point in the system. Adjust the make-up water replacement rate to equal the rate of bleed. Continue to bleed the system until the water appears clean or for at least three hours, whichever is longest; then, completely drain the system.

Supply Valve

Floor Line

1/2” Flexible Hose

Brass Adapter (1/2” MPT x 1/2” Male Flare)

Return Valve

NOTE: Use standard coupling (field-supplied) and hose adapters to join 2 hoses.

Fig. 35 — Temporary Connection for Flushing System Piping

Page 34

8. Refill the system with clean, chemically treated water. Since water varies for each locality, contact a local water treatment company for the correct treatment chemicals to use in the area. Set the boiler to raise the loop temperature to approximately 85 F.

CAUTION

To avoid possible damage to piping systems constructed of plastic piping DO NOT allow loop temperature to exceed 110 F.

Circulate the solution for a minimum of 8 to 24 hours. At the end of this period, shut off the circulating pump and drain the solution. Repeat system cleaning as necessary.

9. When the cleaning process is complete, remove the shortcircuited hoses. Connect the hoses to the proper supply and return connections on each unit. Refill the system and bleed off all air.

10. Test the system pH with litmus paper. The system water should be slightly alkaline (pH 7.0 to 8.5). Add chemicals, as appropriate, to maintain acidity levels.

3. System Water pH: Verify system water is slightly alkaline (pH = 7.5 to 8.5). Proper pH promotes the longevity of the hoses and heat exchangers. See Table 9.

4. Closed-Type Cooling Tower (Open Tower with Heat Exchanger): Check equipment for proper temperature set points and operation.

5. Balanced Water Flow Rate to Heat Pump: Record the inlet and outlet water temperatures as each heat pump unit is started. This check will eliminate nuisance unit tripouts resulting from water velocities that are either too low or too high; it can also prevent erosive water flow rates.

6. Standby Pump: Verify the standby pump is properly installed and in operating condition.

7. System Control: To ensure no catastrophic system failures occur, verify system controls are functioning and the sequencing is correct.

8. Freeze Protection for Water Systems: Verify freeze protection is provided for the outdoor portion of the loop water system. Inadequate freeze protection leads to expensive repairs.

CAUTION

DO NOT use “Stop-Leak” or any similar chemical agent in this system. Addition of these chemicals to the loop water will foul the system and will inhibit unit operation.

11. When the system is successfully cleaned, flushed, refilled and bled, check the main system panels, safety cutouts and alarms. Set the controls to properly maintain loop temperatures.

System Checkout — When the installation is complete

and the system is cleaned and flushed, follow the system checkout procedure outlined below.

1. Voltage: Ensure voltage is within the utilization range specifications of the unit compressor and fan motor.

2. System Water Temperature: Ensure temperature is within an acceptable range shown in Table 8. (When conducting this check, also verify proper heating and cooling set points.)

Table 8 — Air and Water Limits

50PEC UNIT COOLING (F) HEATING (F)

Min Ambient Air 50 50 Rated Ambient Air 80 70 Max Ambient Air 100 85 Min Entering Air 50 50 Rated Entering Air, dry bulb/wet bulb 80/67 70 Max Entering Air, dry bulb/wet bulb 100/83 80 Min Entering Water 30 20 Normal Entering Water 85 70 Max Entering Water 110 90

NOTES:

1. Minimum air and water conditions can only be used at nominal flow rates.

2. 50PEC units may have up to two values at maximum or minimum with all other parameters at normal conditions.

3. Operating limits shown are for start-up, not continuous operation. It is assumed that such a start-up is for the purpose of bringing the space to desired occupancy temperature.

CAUTION

To avoid equipment damage, DO NOT leave system filled in a building without heat during the winter unless antifreeze is added to system water. Condenser coils never fully drain by themselves and will freeze unless winterized with antifreeze.

9. System Water Loop: Verify all air is bled from the system. Air in the system impedes unit operation and causes corrosion in the system piping.

10. Unit Filters: To avoid system damage and to provide maximum performance, ensure the unit filter is clean.

11. Unit Fans: Manually rotate fans to assure free rotation. Ensure fans are properly secured to the fan shaft. Do not oil fan motors on start-up since they are lubricated at the factory.

12. System Control Center: To ensure control of the temperature set points for operation of the system’s heat rejector and boiler, examine the system control and alarm panel for proper installation and operation.

Page 35

Table 9 — Water Quality Guidelines

CONDITION

Scaling Potential — Primary Measurement

Above the given limits, scaling is likely to occur. Scaling indexes should be calculated using the limits below.

pH/Calcium Hardness Method

Index Limits for Probable Scaling Situations (Operation outside these limits is not recommended.)

Scaling indexes should be calculated at 150 F for direct use and HWG applications, and at 90 F for indirect HX use. A monitoring plan should be implemented.

Ryznar Stability Index

Langelier Saturation Index

Iron Fouling

Iron Fe2+ (Ferrous) (Bacterial Iron Potential)

Iron Fouling

Corrosion Prevention††

Hydrogen Sulfide (H2S)

Ammonia Ion as Hydroxide, Chloride, Nitrate and Sulfate Compounds

Maximum Chloride Levels Maximum allowable at maximum water temperature.

Erosion and Clogging

Particulate Size and Erosion

Brackish

LEGEND

HWG — Hot Water Generator HX — Heat Exchanger N/A — Design Limits Not Applicable Considering Recirculating

NR — Application Not Recommended SS — Stainless Steel

*Heat exchanger materials considered are copper, cupronickel, 304 SS

(stainless steel), 316 SS, titanium.

†Closed recirculating system is identified by a closed pressurized piping

system.

**Recirculating open wells should obser ve the open recirculating design

considerations.

Potable Water

MATERIAL*

All N/A pH < 7.5 and Ca Hardness, <100 ppm

All N/A

All

All N/A

Copper N/A

Cupronickel N/A <150 ppm NR NR

304 SS N/A <400 ppm <250 ppm <150 ppm 316 SS N/A <1000 ppm <550 ppm <375 ppm

Titanium N/A >1000 ppm >550 ppm >375 ppm

All

All N/A

CLOSED

RECIRCULATING†

Monitor/treat as needed.

<10 ppm of particles and a maximum velocity of 6 fps.

6 - 8.5

Filtered for maximum

800 micron size.

OPEN LOOP AND RECIRCULATING WELL**

6.0 - 7.5

If >7.5 minimize steel pipe use.

–0.5 to +0.5

Based upon 150 F HWG and direct well, 85 F indirect well HX.

If Fe2+ (ferrous) >0.2 ppm with pH 6 - 8, O2<5 ppm check for iron bacteria.

Minimize steel pipe below 7 and no open tanks with pH <8.

At H2S>0.2 ppm, avoid use of copper and cupronickel piping of HXs.

Copper alloy (bronze or brass) cast components are okay to <0.5 ppm.

50 F (10 C) 75 F (24 C) 100 F (38 C)

<20 ppm NR NR

<10 ppm (<1 ppm “sandfree” for reinjection) of par ticles and a maximum velocity of 6 fps. Filtered for maximum 800 micron size. Any particulate that is not removed can potentially clog components.

Use cupronickel heat exchanger when concentrations of calcium or sodium chloride are greater than 125 ppm are present. (Seawater is approximately 25,000 ppm.)

††If the concentration of these corrosives exceeds the maximum allow-

able level, then the potential for serious corrosion problems exists. Sulfides in the water quickly oxidize when exposed to air, requiring that no agitation occur as the sample is taken. Unless tested immediately at the site, the sample will require stabilization with a few drops of one Molar zinc acetate solution, allowing accurate sulfide determination up to 24 hours after sampling. A low pH and high alkalinity cause system problems, even when both values are within ranges shown. The term pH refers to the acidity, basicity, or neutrality of the water supply. Below 7.0, the water is considered to be acidic. Above 7.0, water is considered to be basic. Neutral water contains a pH of 7.0. To convert ppm to grains per gallon, divide by 17. Hardness in mg/l is equivalent to ppm.

If <–0.5 minimize steel pipe use.

<0.2 ppm (Ferrous)

<0.5 ppm of Oxygen

Above this level deposition will occur.

6 - 8.5

<0.5 ppm

Rotten egg smell appears at 0.5 ppm level.

<0.5 ppm

Page 36

FIELD SELECTABLE INPUTS

Jumpers and DIP (dual in-line package) switches on the control board are used to customize unit operation and can be configured in the field.

IMPORTANT: Jumpers and DIP switches should only be clipped when power to control board has been turned off.

Complete C Control Jumper Settings (See Fig. 17, 18, and 21)

WATER COIL FREEZE PROTECTION (FP1) LIMIT SETTING — Select jumper 3, (JW3-FP1 Low Temp) to choose FP1 temperature limit of 10 F or 30 F. To select 30 F as the temperature limit, DO NOT clip the jumper. To select 10 F as the limit, clip the jumper.

ALARM RELAY SETTING — Select jumper 1 (JW1) for connecting alarm relay terminal (AL2) to 24-vac (R) or to remain as a dry contact (no connection). To connect AL2 to R, do not clip the jumper. To set as dry contact, clip the jumper.

Complete C Control DIP Switches — The Com-

plete C control has one DIP switch block with five switches. See Fig. 17, 18, and 21.

PERFORMANCE MONITOR (PM) — DIP switch 1 will enable or disable this feature. To enable the PM, set the switch to ON. To disable the PM, set the switch to OFF.

STAGE 2 — DIP switch 2 will enable or disable compressor delay. Set DIP switch to OFF for Stage 2 in which the compressor will have a 3-second delay before energizing.

SWITCH 3 AND SWITCH 4 — Not used. FREEZE PROTECTION (FP1) — DIP switch 5 is used to

initiate one or 3 tries for the FP1 fault. If there is water freeze protection for the water coil then DIP switch 5 can be set to lock out on the FP1 fault after one try. ON = One try. OFF = 3 tries.

Deluxe D Control Jumper Settings (See Fig. 19, 20, and 22)

ALARM RELAY SETTING — Select jumper 4 (JW4-AL2 Dry) for connecting alarm relay terminal (AL2) to 24-vac (R) or to remain as a dry contact (no connection). To connect AL2 to R, do not clip the jumper. To set as dry contact, clip the jumper.

LOW PRESSURE SETTING — The Deluxe D control can be configured for low pressure setting (LP). Select jumper 1 (JW1-LP Norm Open) for choosing between low pressure input normally opened or closed. To configure for normally closed operation, do not clip the jumper. To configure for normally open operation, clip the jumper.

Deluxe D Control DIP Switches — The Deluxe D

control has 2 DIP switch blocks. Each DIP switch block has 8 switches and is labeled either S1 or S2 on the circuit board. See Fig. 19, 20, and 22.

DIP SWITCH BLOCK 1 (S1) — This set of switches offers the following options for Deluxe D control configuration:

Performance Monitor (PM) able performance monitor. To enable the PM, set the switch to ON. To disable the PM, set the switch to OFF.

Compressor Relay Staging Operation able or disable compressor relay staging operation. The

— Set switch 1 to enable or dis-

— Switch 2 will en-

compressor relay can be set to turn on with Stage 1 or Stage 2 call from the thermostat. This setting is used with dual stage units (units with 2 compressors and 2 Deluxe D controls) or in master/slave applications. In master/slave applications, each compressor and fan will stage according to its switch 2 setting. If switch is set to Stage 2, the compressor will have a 3-second delay before energizing during stage 2 demand.

NOTE: If DIP switch is set for Stage 2, the alarm relay will not cycle during Test mode.

Heating/Cooling Thermostat Type

— Switch 3 provides selection of thermostat type. Heat pump or heat/cool thermostats can be selected. Select OFF for heat/cool thermostats. When in heat/cool mode, Y1 is used for Cooling Stage 1, Y2 is used for Cooling Stage 2, W1 is used for Heating Stage 1 and O/W2 is used for Heating Stage 2. Select ON for heat pump applications. In heat pump mode, Y1 used is for Compressor Stage 1, Y2 is used for Compressor Stage 2, W1 is used for Heating Stage 3 or emergency heat, and O/W2 is used for RV (heating or cooling) depending upon switch 4 setting.

O/B Thermostat Type

— Switch 4 provides selection for heat pump O/B thermostats. O is cooling output. B is heating output. Select ON for heat pumps with O output. Select OFF for heat pumps with B output.

Dehumidification Fan Mode

— Switch 5 provides selection of normal or dehumidification fan mode. Select OFF for dehumidification mode. The fan speed relay will remain OFF during Cooling Stage 2. Select ON for normal mode. The fan speed relay will turn on during Cooling Stage 2 in normal mode.

Switch 6 Boilerless Operation

— Not used.

— Switch 7 provides selection of boilerless operation and works in conjunction with switch 8. In boilerless operation mode, only the compressor is used for heating when FP1 is above the boilerless changeover temperature set by switch 8 below. Select ON for normal operation or select OFF for boilerless operation.

Boilerless Changeover Temperature

— Switch 8 on S1 provides selection of boilerless changeover temperature set point. Select OFF for set point of 50 F or select ON for set point of 40 F.

If switch 8 is set for 50 F, then the compressor will be used for heating as long as the FP1 is above 50 F. The compressor will not be used for heating when the FP1 is below 50 F and the compressor will operate in emergency heat mode, staging on EH1 and EH2 to provide heat. If a thermal switch is being used instead of the FP1 thermistor, only the compressor will be used for heating mode when the FP1 terminals are closed. If the FP1 terminals are open, the compressor is not used and the control goes into emergency heat mode.

DIP SWITCH BLOCK 2 (S2) — The following set of DIP switches is used to configure accessory relay options.

Switches 1 to 3

— These DIP switches provide selection of Accessory 1 relay options. See Table 10 for DIP switch combinations.

Table 10 — DIP Switch Block S2 —

Accessory 1 Relay Options

ACCESSORY 1

RELAY OPTIONS

Digital NSB Off On On

Water Valve — Slow Opening On Off On

LEGEND

NSB — Night Setback

NOTE: All other DIP switch combinations are invalid.

DIP SWITCH POSITION

123

Switches 4 to 6 — These DIP switches provide selection of Accessory 2 relay options. See Table 11 for DIP switch combinations.

Page 37

Table 11 — DIP Switch Block S2 —

Accessory 2 Relay Options

ACCESSORY 2

RELAY OPTIONS

Digital NSB Off On On

Water Valve — Slow Opening On Off On

LEGEND

NSB — Night Setback

NOTE: All other switch combinations are invalid.

DIP SWITCH POSITION 456

Auto Dehumidification Mode or High Fan Mode — Switch 7 provides selection of auto dehumidification fan mode or high fan mode. In auto dehumidification fan mode, the fan speed relay will remain off during Cooling Stage 2 if terminal H is active. In high fan mode, the fan enable and fan speed relays will turn on when terminal H is active. Set the switch to ON for auto dehumidification fan mode or to OFF for high fan mode.

Switch 8

— Not used.

Deluxe D Control Accessory Relay Configurations —

ble for Deluxe D control only: CYCLE WITH COMPRESSOR — In this configuration, the

relay will be ON any time the compressor relay is on. DIGITAL NIGHT SETBACK (NSB) — In this configura-

tion, the relay will be ON if the NSB input is connected to ground C.

NOTE: If there are no relays configured for digital NSB, then the NSB and OVR (override) inputs are automatically configured for mechanical operation.

MECHANICAL NIGHT SETBACK — When NSB input is connected to ground C, all thermostat inputs are ignored. A thermostat setback heating call will then be connected to the OVR input. If OVR input becomes active, then the Deluxe D control will enter night low limit (NLL) staged heating mode. The NLL staged heating mode will then provide heating during the NSB period.

WATER VALVE (SLOW OPENING) — If relay is configured for water valve (slow opening), the relay will start 60 seconds prior to starting compressor relay.

The following accessory relay settings are applica-

CAUTION

START-UP

Use the procedure outlined below to initiate proper unit

start-up:

IMPORTANT: This equipment is designed for indoor installation ONLY.

WARNING

When the disconnect switch is closed, high voltage is present in some areas of the electrical panel. Exercise caution when working with the energized equipment.

1. Adjust all valves to the full open position and turn on the line power to all heat pump units.

2. Operate each unit in the Cooling mode first. Room temperature should be in the normal range

(i.e., approximately 50 to 80 F dry bulb). Loop water temperature entering the heat pumps should be at least 40 F but not in excess of 110 F. Refer to Table 8 for more specific information on the operating parameters of units.

IMPORTANT: Three factors determine the operating limits of a unit: (1) return-air temperature, (2) water temperature and (3) ambient temperature. Whenever any one of these factors is at a minimum or maximum level, the other two factors must be at normal levels to ensure proper unit operation. Flow rates must be at nominal ARI (Air Conditioning and Refrigeration Institute)/ISO (International Organization for Standardization)/ ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers) 13256-1 standards.

Unit Start-Up/Cooling

1. Turn the unit thermostat to the cooling position and turn the fan speed switch to “HI.” If the unit has an optional MCO thermostat, set the selector switch to Cool. Both the fan and compressor should run.

2. Check for cool air delivery at unit grille 15 minutes after the unit has begun operating. List the identification number of any machines that do not function at this time.

3. Check the elevation and cleanliness of the condensate lines; any dripping could be a sign of a blocked line.

4. Select low fan speed. Airflow should decrease and compressor should operate.

5. Slowly turn thermostat toward warmer position. Both fan and compressor should shut off when thermostat set point equals room temperature. Room temperature must be below 90 F for unit to shut off.

6. Operate each heat pump in the heating cycle immediately after checking cooling cycle operation. A time delay will prevent the compressor from re-starting for approximately 5 minutes.

Operating Limits

ENVIRONMENT — This equipment is designed for indoor installation ONLY.

POWER SUPPLY — A voltage variation of ± 10% of nameplate utilization voltage is acceptable.

50PEC UNIT STARTING CONDITIONS — The 50PEC units will start and operate at an ambient temperature of 50 F with entering-air temperature at 50 F, entering water at 60 F, and with both air and water at the flow rates used in the ARI/ISO/ASHRAE Standard 13256-1 rating test, for initial start-up in winter.

IMPORTANT: These operating limits are not normal or continuous operating conditions. It is assumed that such a start-up is for the purpose of bringing the building space up to occupancy temperature.

Unit Start-Up/Heating

1. Adjust the unit thermostat to the warmest setting and turn the fan speed switch to “HI.” If the unit has an optional MCO thermostat, set the selector switch to Heat. The blower should start immediately and after the time delay is complete, the compressor will start.

2. Once the unit has begun to run, check for warm air delivery at the unit grille. Again, the installing contractor must list the serial number of any machine that does not function.

3. Log the unit operating conditions at initial start-up for each unit to establish a permanent operating record.

4. Select low fan speed. Airflow should decrease and compressor should continue to operate.

Page 38

5. Slowly turn thermostat toward cooler position. Both fan and compressor should shut off when thermostat set point equals room temperature. Room temperature must be above 65 F for unit to shut off.

Unit Start-Up with WSHP Open Controls —

The WSHP Open is a multi-protocol (default BACnet*) controller with extensive features, flexible options and powerful capabilities. The unit comes from the factory pre-programmed and needs minimal set up to function in a BAS (Building Automation System) system or provide additional capabilities to Carrier's WSHP product line. Most settings on the controller have factory defaults set for ease of installation. There are a few settings that must be configured in the field and several settings that can be adjusted if required by unique job conditions. Refer to Appendix A — WSHP Open Screen Configuration. In order to configure the unit, a BACview required. See Fig. 36.

NOTE: If the WSHP Open control has lost its programming, all display pixels will be displayed on the SPT sensor. See the WSHP Third Party Integration Guide.

When the unit is OFF, the SPT sensor will indicate OFF. When power is applied, the SPT sensor will indicate temperature in the space at 78 F.

To start-up a unit with WSHP Open controls:

1. To plug in the BACview

handheld display into a SPT sensor, point the two ears on the connector up and tilt the bottom of the plug toward you. Insert the plug up into the SPT sensor while pushing the bottom of the plug away from you.

2. BACview

should respond with "Establishing Connection." The Home screen will then appear on the display showing operating mode and space temperature. Press any button to continue.

See Appendix A — WSHP Open Screen Configuration for the hierarchal structure of the WSHP Open controller. All functions of the controller can be set from the Home screen.

3. When the Login is requested, type 1111 and push the OK softkey. The Logout will then be displayed to indicate the password was accepted.

4. To set the Clock if it is not already displayed:

a. Select System Settings from the Home screen, then

press Clockset.

b. Scroll to hour, minute and second using the arrow

keys. Use the number keypad to set actual time.

display is

c. Scroll to day, month and year using arrow keys.

Use number keypad to set date.

5. To set Daylight Savings Time (DST): a. Push the DST softkey. The display will indicate

02:00:060 which is equal to 2:00AM.

b. To program the beginning and end dates, scroll

down to the beginning month and press the enter key. The softkeys (INCR and DECR) will activate to increment the month in either direction, Jan, Feb, March, etc.

c. Use number keys to select the day of month and

year.

d. Push the OK softkey to finalize the data.

6. To view configuration settings: a. Select the Config softkey. b. Select the Service Config softkey. Scroll through

the factory settings by using the up and down arrow keys. See below for factory settings.

Only the following settings will need to be checked.

• # of Fan Speeds — This should be set to "1" for units with PSC motors and set to "3" for units with ECM motors.

• Compressor Stages — This should be set to "1."

• Factory Dehumidification Reheat Coil — This should be set to "none" unless the modulating hot water reheat option is supplied in the unit, then set to "installed."

• The condenser water limit needs to be verified depending on design parameters and application, whether geothermal or boiler/tower.

7. To view unit configuration settings: a. Select the Unit Configuration softkey, then select

Unit.

b. Scroll through the unit settings by using the up and

down arrow keys. Unit settings include:

• Fan Mode: Default Continuous

• Fan Delay:

• Minimum SAT Cooling: Default 50 F

• Maximum SAT Heating: Default 110 F

• Filter Service Alarm: Must be set from 0 to 9999 hr

8. To set local schedules: a. Select the Schedule softkey from the Configuration

screen, then press enter.

a50-8444

Fig. 36 — BACview6 Display Interface

*Sponsored by ASHRAE (American Society of Heating, Refrigerating and Air Conditioning Engineers).

Page 39

b. Select Weekly, then press enter (7 schedules

available). c. Select day and press enter. d. Press enter again and select ADD or DEL (DECR

or INCR) set schedule. e. Enter ON/OFF time, then press continue. f. Press OK to apply and save to a particular day of

the week. g. Continue to add the same or different schedule spe-

cific days of the week.

To add exceptions to the schedule:

i. Press Add softkey.

ii. Select exception type from following:

• Date

• Date Range

• Week-N-Day

• Calender Reference

9. Go back to Home Screen.

10. Remove BACview

cable from SPT sensor by reversing

the process in Step 1.

11. Perform system test.

Flow Regulation — Flow regulation can be accom-

plished by two methods. Most water control valves have a built-in flow adjustment valve. Determine the flow rate by measuring the pressure drop through the unit heat exchanger. See Table 12. Adjust the water control valve until a flow of 1.5 to 2 gpm per ton cooling is achieved. Since the pressure constantly varies, two pressure gages may be needed.

An alternative method for regulating flow is to install a flow control device. These devices are typically an orifice of plastic material mounted on the outlet of the water control valve, designed to allow a specified flow rate. Occasionally these valves produce a velocity noise that can be reduced by

applying some back pressure. To accomplish this, slightly close the leaving isolation valve of the water regulating device.

CAUTION

DO NOT use “Stop Leak” or any similar chemical agent in this system. Addition of these chemicals to the loop water will foul the system and inhibit unit operation.

Antifreeze — In areas where entering loop temperatures

drop below 40 F or where piping will be routed through areas subject to freezing, antifreeze is needed.

Alcohols and glycols are commonly used as antifreeze agents. Freeze protection should be maintained to 15 F below the lowest expected entering loop temperature. For example, if the lowest expected entering loop temperature is 30 F, the leaving loop temperature would be 22 to 25 F. Therefore, the freeze protection should be at 15 F (30 F –15 F) = 15 F.

IMPORTANT: All alcohols should be pre-mixed and pumped from a reservoir outside of the building or introduced under water level to prevent alcohols from fuming.

Calculate the total volume of fluid in the piping system. See Table 13. Use the percentage by volume in Table 14 to determine the amount of antifreeze to use. Antifreeze concentration should be checked from a well mixed sample using a hydrometer to measure specific gravity.

FREEZE PROTECTION SELECTION — The 30 F FP1 factory setting (water) should be used to avoid freeze damage to the unit.

Once antifreeze is selected, the JW3 jumper (FP1) should be clipped on the control to select the low temperature (antifreeze 10 F) set point to avoid nuisance faults.

Table 12 — Coaxial Water Pressure Drop

UNIT

50PEC

Cv — Flow Coefficient MOPD — Maximum Operating Pressure Differential

FLOW (GPM)

1.3 1.8 2.0 1.3 1.5 1.2 1.3 1.0 1.2

1.9 3.2 3.6 2.5 2.9 2.2 2.7 2.0 2.4

2.5 5.0 5.8 3.9 4.6 3.5 4.2 3.0 3.8

1.6 1.8 6.5 1.6 6.5 1.4 6.5 1.3 6.5

2.3 3.3 11.4 2.9 11.4 2.6 11.4 2.3 11.4

3.1 5.3 19.6 4.5 19.6 4.1 19.6 3.7 19.6

1.8 1.2 1.6 1.2 1.6 1.1 1.5 1.0 1.4

2.7 2.6 3.4 2.2 3.1 2.0 2.9 1.9 2.7

3.6 4.2 5.7 3.5 5.0 3.2 4.8 3.0 4.5

2.4 2.1 2.8 2.0 2.6 1.8 2.4 1.6 2.3

3.6 4.2 5.8 3.7 5.2 3.3 4.9 3.0 4.6

4.8 6.8 9.6 6.0 8.8 5.5 8.2 4.9 7.7

Without

Motorized

Valve

LEGEND

30 F 50 F 70 F 90 F

With Cv = 2.9

MOPD = 125 psi

Without

Motorized

Valve

PRESSURE DROP (ft wg)

With Cv = 2.9

MOPD = 125 psi

Without

Motorized

Val ve

With Cv = 2.9

MOPD = 125 psi

Without

Motorized

Valve

With Cv = 2.9

MOPD = 125 psi

Page 40

Table 13 — Approximate Fluid Volume (gal)

per 100 ft of Pipe

PIPE DIAMETER (in.) VOLUME (gal.)

Copper 14.1

Rubber Hose 13.9 Polyethylene

IPS — Internal Pipe Size SCH — Schedule SDR — Standard Dimensional Ratio

NOTE: Volume of heat exchanger is approximately 1.0 gallon.

LEGEND

1.25 6.4

1.5 9.2

/4 IPS SDR11 2.8

1 IPS SDR11 4.5

/4 IPS SDR11 8.0

/2 IPS SDR11 10.9

2 IPS SDR11 18.0

/4 IPS SCH40 8.3

/2 IPS SCH40 10.9

2 IPS SCH40 17.0

Table 14 — Antifreeze Percentages by Volume

ANTIFREEZE

Methanol (%) 25 21 16 10 100% USP Food Grade

Propylene Glycol (%)

MINIMUM TEMPERATURE FOR FREEZE

PROTECTION (F)

10 15 20 25

38 30 22 15

Cooling Tower/Boiler Systems — These systems

typically use a common loop maintained at 60 to 90 F. Carrier recommends using a closed circuit evaporative cooling tower with a secondary heat exchanger between the tower and the water loop. If an open type cooling tower is used continuously, chemical treatment and filtering will be necessary.

Ground Coupled, Closed Loop and Plateframe Heat Exchanger Well Systems — These systems al-

low water temperatures from 30 to 110 F. The external loop field is divided up into 2 in. polyethylene supply and return lines. Each line has valves connected in such a way that upon system start-up, each line can be isolated for flushing using only the system pumps. Air separation should be located in the piping system prior to the fluid re-entering the loop field.

OPERATION

Power Up Mode —

inputs, terminals and safety controls are checked for normal operation.

NOTE: The compressor will have a 5-minute anti-short cycle delay upon power up.

The unit will not operate until all the

Units with Aquazone™ Complete C Control

STANDBY — The Y and W terminals are not active in Standby mode, however the O and G terminals may be active, depending on the application. The compressor will be off.

COOLING — The Y and O terminals are active in Cooling mode. After power up, the first call to the compressor will initiate a 5 to 80-second random start delay and a 5-minute antishort cycle protection time delay. After both delays are complete, the compressor is energized.

NOTE: On all subsequent compressor calls the random start delay is omitted.

HEATING STAGE 1 — Terminal Y is active in Heating Stage 1. After power up, the first call to the compressor will initiate a 5 to 80-second random start delay and a 5-minute anti-short cycle protection time delay. After both delays are complete, the compressor is energized.

NOTE: On all subsequent compressor calls the random start delay is omitted.

HEATING STAGE 2 — To enter Stage 2 mode, terminal W is active (Y is already active). Also, the G terminal must be active

or the W terminal is disregarded. The compressor relay will remain on and EH1 (emergency heat) is immediately turned on. EH2 will turn on after 10 minutes of continual Stage 2 demand.

NOTE: EH2 will not turn on (or if on, will turn off) if FP1 (freeze protection) temperature is greater than 45 F and FP2 is greater than 110 F.

EMERGENCY HEAT — In Emergency Heat (EH) mode, terminal W is active while terminal Y is not. Terminal G must be active or the W terminal is disregarded. EH1 is immediately turned on. EH2 will turn on after 5 minutes of continuous emergency heat demand.

Units with Aquazone Deluxe D Control

STANDBY/FAN ONLY — The compressor will be off. The fan enable, fan speed, and reversing valve (RV) relays will be on if inputs are present. If there is a Fan 1 demand, the fan enable will immediately turn on. If there is a Fan 2 demand, the fan enable and fan speed will immediately turn on.

NOTE: DIP switch 5 on S1 does not have an effect upon Fan 1 and Fan 2 outputs.

HEATING STAGE 1 — In Heating Stage 1 mode, the fan enable and compressor relays are turned on immediately. Once the demand is removed, the relays are turned off and the control reverts to Standby mode. If there is a master/slave or dual compressor application, all compressor relays and related functions will operate per their associated DIP switch 2 setting on S1.

HEATING STAGE 2 — In Heating Stage 2 mode, the fan enable and compressor relays remain on. The fan speed relay is turned on immediately and turned off immediately once the demand is removed. The control reverts to Heating Stage 1 mode. If there is a master/slave or dual compressor application, all compressor relays and related functions will operate per their associated DIP switch 2 setting on S1.

HEATING STAGE 3 — In Heating Stage 3 mode, the fan enable, fan speed and compressor relays remain on. The EH1 output is turned on immediately. With continuing Heat Stage 3 demand, EH2 will turn on after 10 minutes. EH1 and EH2 are turned off immediately when the Heating Stage 3 demand is removed. The control reverts to Heating Stage 2 mode.

Output EH2 will be off if FP1’s temperature is greater than 45 F AND FP2 (when shorted) is greater than 110 F during Heating Stage 3 mode. This condition will have a 30-second recognition time. Also, during Heating Stage 3 mode, EH1, EH2, fan enable, and fan speed will be ON if G input is not active.

EMERGENCY HEAT — In Emergency Heat mode, the fan enable and fan speed relays are turned on. The EH1 output is turned on immediately. With continuing emergency heat demand, EH2 will turn on after 5 minutes. Fan enable and fan speed relays are turned off after a 60-second delay. The control reverts to Standby mode.

Output EH1, EH2, fan enable, and fan speed will be ON if the G input is not active during Emergency Heat mode.

COOLING STAGE 1 — In Cooling Stage 1 mode, the fan enable, compressor and RV relays are turned on immediately. If configured as stage 2 (DIP switch set to OFF) then the compressor and fan will not turn on until there is a stage 2 demand. The fan enable and compressor relays are turned off immediately when the Cooling Stage 1 demand is removed. The control reverts to Standby mode. The RV relay remains on until there is a heating demand. If there is a master/slave or dual compressor application, all compressor relays and related functions will track with their associated DIP switch 2 on S1.

COOLING STAGE 2 — In Cooling Stage 2 mode, the fan enable, compressor and RV relays remain on. The fan speed relay is turned on immediately and turned off once the Cooling Stage 2 demand is removed. The control reverts to Cooling Stage 1 mode. If there is a master/slave or dual compressor

Page 41

application, all compressor relays and related functions will track with their associated DIP switch 2 on S1.

NIGHT LOW LIMIT (NLL) STAGED HEATING — In NLL staged Heating mode, the override (OVR) input becomes active and is recognized as a call for heating and the control will immediately go into a Heating Stage 1 mode. With an additional 30 minutes of NLL demand, the control will go into Heating Stage 2 mode. With another additional 30 minutes of NLL demand, the control will go into Heating Stage 3 mode.

Units with WSHP Open Multiple Protocol —

The WSHP Open multi-protocol controller will control mechanical cooling, heating and waterside economizer outputs based on its own space temperature input and set points. An optional CO space can maximize the occupant comfort. The WSHP Open controller has its own hardware clock that is automatically set when the heat pump software is downloaded to the board. Occupancy types are described in the scheduling section below. The following sections describe the functionality of the WSHP Open multi-protocol controller. All point objects referred to in this sequence of operation will be referenced to the objects as viewed in the BACview

SCHEDULING — Scheduling is used to start/stop the unit based on a time period to control the space temperature to specified occupied heating and cooling set points. The controller is defaulted to control by occupied set points all the time, until either a time schedule is configured with BACview tant, i-Vu able the BAS (Building Automation System) on/off point. The local time and date must be set for these functions to operate properly. The occupancy source can be changed to one of the following:

Occupancy Schedules until a time schedule has been configured using either Field Assistant, i-Vu Open, BACview to enable/disable the BAS on/off point. The BAS point can be disabled by going to Config, then Unit, then Occupancy Schedules and changing the point from enable to disable then clicking OK.

NOTE: This point must be enabled in order for the i-Vu Open, Field Assistant, or BACview schedule to the controller.

Schedule_schedule schedule configured and stored in the unit. The schedule is accessible via the BACview Field Assistant control system. The daily schedule consists of a start/stop time (standard or 24-hour mode) and seven days of the week, starting with Monday and ending on Sunday. To enter a daily schedule, navigate to Config, then Sched, then enter BACview schedule_schedule. From here, enter either a Weekly or Exception schedule for the unit.

Occupancy Input Contact the capability to use an external dry contact closure to determine the occupancy status of the unit. The Occupancy Schedules will need to be disabled in order to utilize the occupancy contact input.

NOTE: Scheduling can only be controlled from one source. BAS (Building Automation System) On/Off

system that supports network scheduling can control the unit through a network communication and the BAS scheduling function once the Occupancy Schedules have been disabled.

NOTE: Scheduling can either be controlled via the unit or the BAS, but not both.

INDOOR FAN — The indoor fan will operate in any one of three modes depending on the user configuration selected.

Fan mode can be selected as Auto, Continuous, or Always

On. In Auto mode, the fan is in intermittent operation during

IAQ (indoor air quality) sensor mounted in the

handheld user interface.

Open, or a third party control system to enable/dis-

, Field Assis-

— The controller will be occupied 24/7

or a third party control system

control system to assign a time

— The unit will operate according to the

Handheld tool, i-Vu Open, or

Admin Password (1111), then go to

— The WSHP Open controller has

— A BAS

both occupied and unoccupied periods. Continuous fan mode is intermittent during unoccupied periods and continuous during occupied periods. Always On mode operates the fan continuously during both occupied and unoccupied periods. In the default mode, Continuous, the fan will be turned on whenever any one of the following is true:

• The unit is in occupied mode as determined by its occupancy status.

• There is a demand for cooling or heating in the unoccupied mode.

• There is a call for dehumidification (optional). When power is reapplied after a power outage, there will be

a configured time delay of 5 to 600 seconds before starting the fan. There are also configured fan delays for Fan On and Fan Off. The Fan On delay defines the delay time (0 to 30 seconds; default 10) before the fan begins to operate after heating or cooling is started while the Fan Off delay defines the delay time (0 to 180 seconds; default 45) the fan will continue to operate after heating or cooling is stopped. The fan will continue to run as long as the compressors, heating stages, or the dehumidification relays are on. If the SPT failure alarm or condensate overflow alarm is active; the fan will be shut down immediately regardless of occupancy state or demand.

Fan Speed Control (During Heating)

— Whenever heat is required and active, the control continuously monitors the supply-air temperature to verify it does not rise above the configured maximum heating SAT limit (110 F default). As the SAT approaches this value, the control will increase the fan speed as required to ensure the SAT will remain within the limit. This feature provides the most quiet and efficient operation by operating the fan at the lowest speed possible.

Fan Speed Control (During Cooling)

— Whenever mechanical cooling is required and active, the control continuously monitors the supply-air temperature to verify it does not fall below the configured minimum cooling SAT limit (50 F default). As the SAT approaches this value, the control will increase the fan speed as required to ensure the SAT will remain within the limit. The fan will operate at lowest speed to maximize latent capacity during cooling.

COOLING — The WSHP Open controller will operate one or two stages of compression to maintain the desired cooling set point. The compressor outputs are controlled by the PI (proportional-integral) cooling loop and cooling stages capacity algorithm. They will be used to calculate the desired number of stages needed to satisfy the space by comparing the space temperature (SPT) to the appropriate cooling set point. The water side economizer, if applicable, will be used for first stage cooling in addition to the compressor(s). The following conditions must be true in order for the cooling algorithm to run:

• Cooling is set to Enable.

• Heating mode is not active and the compressor time

guard has expired.

• Condensate overflow input is normal.

• If occupied, the SPT is greater than the occupied cooling

set point.

• Space temperature reading is valid.

• If unoccupied, the SPT is greater than the unoccupied

cooling set point.

• If economizer cooling is available and active and the

economizer alone is insufficient to provide enough cooling.

• OAT (if available) is greater than the cooling lockout

temperature.

If all the above conditions are met, the compressors will be energized as required, otherwise they will be deenergized. If cooling is active and should the SAT approach the minimum SAT limit, the fan will be indexed to the next higher speed. Should this be insufficient and if the SAT falls further (equal to the minimum SAT limit), the fan will be indexed to the

Page 42

maximum speed. If the SAT continues to fall 5 F below the

minimum SAT limit, all cooling stages will be disabled.

During Cooling mode, the reversing valve output will be held in the cooling position (either B or O type as configured) even after the compressor is stopped. The valve will not switch position until the Heating mode is required.

The configuration screens contain the minimum SAT parameter as well as cooling lockout based on outdoor-air temperature (OAT) Both can be adjusted to meet various specifications.

There is a 5-minute off time for the compressor as well as a 5-minute time delay when staging up to allow the SAT to achieve a stable temperature before energizing a second stage of capacity. Likewise, a 45-second delay is used when staging down.

After a compressor is staged off, it may be restarted again after a normal time-guard period of 5 minutes and if the supply-air temperature has increased above the minimum supplyair temperature limit.

The WSHP Open controller provides a status input to monitor the compressor operation. The status is monitored to determine if the compressor status matches the commanded state. This input is used to determine if a refrigerant safety switch or other safety device has tripped and caused the compressor to stop operating normally. If this should occur, an alarm will be generated to indicate the faulted compressor condition.

HEATING — The WSHP Open controller will operate one or two stages of compression to maintain the desired heating set point. The compressor outputs are controlled by the heating PI (proportional-integral) loop and heating stages capacity algorithm. They will be used to calculate the desired number of stages needed to satisfy the space by comparing the space temperature (SPT) to the appropriate heating set point. The following conditions must be true in order for the heating algorithm to run:

• Heating is set to Enable.

• Cooling mode is not active and the compressor time

guard has expired.

• Condensate overflow input is normal.

• If occupied, the SPT is less than the occupied heating set

point.

• Space temperature reading is valid.

• If unoccupied, the SPT is less than the unoccupied heat-

ing set point.

• OAT (if available) is less than the heating lockout

temperature.

If all the above conditions are met, the heating outputs will be energized as required, otherwise they will be deenergized. If the heating is active and should the SAT approach the maximum SAT limit, the fan will be indexed to the next higher speed. Should this be insufficient, and the SAT rises further reaching the maximum heating SAT limit, the fan will be indexed to the maximum speed. If the SAT still continues to rise 5 F above the maximum limit, all heating stages will be disabled.

During Heating mode, the reversing valve output will be held in the heating position (either B or O type as configured) even after the compressor is stopped. The valve will not switch position until the Cooling mode is required.

The configuration screens contain the maximum SAT parameter as well as heating lockout based on outdoor-air temperature (OAT); both can be adjusted to meet various specifications.

After a compressor is staged off, it may be restarted again after a normal time-guard period of 5 minutes and if the supply-air temperature has fallen below the maximum supply air temperature limit.

AUXILIARY HEAT — The WSHP Open controller can control a two-position, modulating water, or steam valve connected to a coil on the discharge side of the unit and supplied by a boiler or a single-stage ducted electric heater in order to maintain the desired heating set point. Should the compressor capacity be insufficient or a compressor failure occurs, the auxiliary heat will be used. Unless the compressor fails, the auxiliary heat will only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point (the amount is configurable). The heat will be controlled so the SAT will not exceed the maximum heating SAT limit.

Auxiliary Modulating Hot Water/Steam Heating Reheat — The control can modulate a hot water or steam valve connected to a coil on the discharge side of the unit and supplied by a boiler in order to maintain the desired heating set point should the compressor capacity be insufficient or a compressor failure occurs. Unless a compressor fault condition exists, the valve will only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point. The valve will be controlled so the SAT will not exceed the maximum heating SAT limit.

Two-Position Hot Water/Steam Heating Reheat trol can operate a two-position, NO or NC, hot water or steam valve connected to a coil on the discharge side of the unit and supplied by a boiler in order to maintain the desired heating set point should the compressor capacity be insufficient or a compressor failure occurs. Unless a compressor fault condition exists, the valve will only open to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point. The valve will be controlled so the SAT will not exceed the maximum heating SAT limit. The heat stage will also be subject to a 2-minute minimum OFF time to prevent excessive valve cycling.

Single Stage Electric Auxiliary Heat erate a field-installed single stage of electric heat installed on the discharge side of the unit in order to maintain the desired heating set point should the compressor capacity be insufficient or a compressor failure occurs. Unless a compressor fault condition exists, the heat stage will only operate to supplement the heat provided by the compressor if the space temperature falls more than one degree below the desired heating set point. The heat stage will be controlled so the SAT will not exceed the maximum heating SAT limit. The heat stage will also be subject to a 2-minute minimum OFF time to prevent excessive cycling.

INDOOR AIR QUALITY (IAQ) AND DEMAND CONTROLLED VENTILATION (DCV) — If the optional indoor air quality sensor is installed, the WSHP Open controller can maintain indoor air quality via a modulating OA damper providing demand controlled ventilation. The control operates the modulating OA damper during occupied periods. The control monitors the CO set points, adjusting the ventilation rate as required. The control provides proportional ventilation to meet the requirements of

level and compares it to the configured

— The control can op-

— The con-

Page 43

ASHRAE (American Society of Heating, Refrigerating and

Air Conditioning Engineers) specifications by providing a base ventilation rate and then increasing the rate as the CO creases. The control will begin to proportionally increase ventilation when the CO point and will reach the full ventilation rate when the CO2 level is at or above the maximum set point. A user-configurable minimum damper position ensures that proper base ventilation is delivered when occupants are not present. The IAQ configurations can be accessed through the configuration screen. The following conditions must be true in order for this algorithm to run:

• Damper control is configured for DCV.

• The unit is in an occupied mode.

• The IAQ sensor reading is greater than the DCV start control set point.

The control has four user adjustable set points: DCV start

control set point, DCV maximum control set point, minimum damper position, and DCV maximum damper position.

Two-Position OA Damper to operate a ventilation damper in a two-position ventilation mode to provide the minimum ventilation requirements during occupied periods.

WATERSIDE ECONOMIZER — The WSHP Open controller has the capability of providing modulating or two-position water economizer operation (for a field-installed economizer coil mounted to the entering air side of the unit and connected to the condenser water loop) in order to provide free cooling (or preheating) when water conditions are optimal. Water economizer settings can be accessed through the equipment status screen. The following conditions must be true for economizer operation:

• SAT reading is available.

• LWT reading is available.

• If occupied, the SPT is greater than the occupied cooling set point or less than the occupied heating set point and the condenser water is suitable.

• Space temperature reading is valid.

• If unoccupied, the SPT is greater than the unoccupied cooling set point or less than the unoccupied heating set point and the condenser water is suitable.

Modulating Water Economizer Control the capability to modulate a water valve to control condenser water flowing through a coil on the entering air side of the unit.

Cooling — The purpose is to provide an economizer cooling function by using the water loop when the entering water loop temperature is suitable (at least 5 F below space temperature). If the water loop conditions are suitable, then the valve will modulate open as required to maintain a supply-air temperature that meets the load conditions. Should the economizer coil capacity alone be insufficient for a period greater than 5 minutes, or should a high humidity condition occur, then the compressor will also be started to satisfy the load. Should the SAT approach the minimum cooling SAT limit, the economizer valve will modulate closed during compressor operation.

Heating — Additionally, the control will modulate the water valve should the entering water loop temperature be suitable for heating (at least 5 F above space temperature) and heat is required. The valve will be controlled in a similar manner except to satisfy the heating requirement. Should the economizer coil capacity alone be insufficient to satisfy the space load conditions for more than 5 minutes, then the compressor will be started to satisfy the load. Should the SAT approach the maximum heating SAT limit, the economizer valve will modulate closed during compressor operation.

Two-Position Water Economizer Control the capability to control a NO or NC, two-position water valve to control condenser water flow through a coil on the entering air side of the unit.

level rises above the start ventilation set

— The control can be configured

— The control has

level in-

Cooling — The purpose is to provide a cooling economizer function directly from the condenser water loop when the entering water loop temperature is suitable (at least 5 F below space temperature). If the optional coil is provided and the water loop conditions are suitable, then the valve will open to provide cooling to the space when required. Should the capacity be insufficient for a period greater than 5 minutes, or should a high humidity condition occur, then the compressor will be started to satisfy the load. Should the SAT reach the minimum cooling SAT limit, the economizer valve will close during compressor operation.

Heating — Additionally, the economizer control will open the water valve should the entering water loop temperature be suitable for heating (at least 5 F above space temperature) and heat is required. The valve will be controlled in a similar manner except to satisfy the heating requirement. Should the coil capacity be insufficient to satisfy the space load for more than 5 minutes, then the compressor will be started to satisfy the load. Should the SAT reach the maximum heating SAT limit, the economizer valve will close during compressor operation.

DEMAND LIMIT — The WSHP Open controller has the ability to accept three levels of demand limit from the network. In response to a demand limit, the unit will decrease its heating set point and increase its cooling set point to widen the range in order to immediately lower the electrical demand. The amount of temperature adjustment in response is user adjustable for both heating and cooling and for each demand level. The response to a particular demand level may also be set to zero.

CONDENSER WATER LINKAGE — The control provides optimized water loop operation using an universal controller (UC) open loop controller. Loop pump operation is automatically controlled by WSHP equipment occupancy schedules, unoccupied demand and tenant override conditions. Positive pump status feedback prevents nuisance fault trips. The condenser water linkage operates when a request for condenser water pump operation is sent from each WSHP to the loop controller. This request is generated whenever any WSHP is scheduled to be occupied, is starting during optimal start (for warm-up or pull down prior to occupancy), there is an unoccupied heating or cooling demand, or a tenant pushbutton override. At each WSHP, the water loop temperature and the loop pump status is given. The WSHP will NOT start a compressor until the loop pumps are running or will shutdown the compressors should the pumps stop. This prevents the WSHP from operating without water flow and thus tripping out on refrigerant pressure, causing a lockout condition. The WSHP Open controller control will prevent this from occurring. Also, the loop controller can be configured to start the pumps only after a configurable number of WSHPs are requesting operation (from 1-"N"). This can be used to prevent starting the entire loop operation for only one WSHP. Meanwhile, the WSHPs will not operate if the loop pump status is off and therefore the WSHP compressor will not run.

COMPLETE C AND DELUXE D BOARD

SYSTEM TEST

System testing provides the ability to check the control operation. The control enters a 20-minute Test mode by momentarily shorting the test pins. All time delays are reduced by a factor of 15.

Test Mode — To enter Test mode on Complete C or

Deluxe D controls, cycle the power 3 times within 60 seconds. The LED (light-emitting diode) will flash a code representing the last fault when entering the Test mode. The alarm relay will also power on and off during Test mode. See Tables 15-17. To exit Test mode, short the terminals for 3 seconds or cycle the power 3 times within 60 seconds.

NOTE: The Deluxe D control has a flashing code and alarm relay cycling code that will both have the same numerical

Page 44

label. For example, flashing code 1 will have an alarm relay cycling code 1. Code 1 indicates the control has not faulted since the last power-off to power-on sequence.

WSHP Open Test Mode — To enter WSHP Open test

mode, navigate from the BACview

home screen to the configuration screen. Choose the service screen and enable unit test. The controller will then test the following:

FAN TEST — Tests all fan speeds, sequences fan from low to high, and operates each speed for one minute. Resets to disable on completion.

COMPRESSOR TEST — Tests compressor cooling and heating operation. Sequences cooling stage 1 then cooling stage 2 followed by heating stage 2 then reduces capacity to heating stage 1. Operates for 1 minute per step.

DEHUMIDIFICATION TEST — Tests dehumidification mode. Operates for 2 minutes.

AUXILIARY HEATING TEST — Tests auxiliary heat. Sequences fan on and enables heating coil for 1 minute.

O ECONOMIZER TEST — Tests entering/returning

water loop economizer operation. Sequences fan and opens economizer water valve for one minute.

OPEN VENT DAMPER 100% TEST — Tests outside air (OA) damper operation.

PREPOSITION OA DAMPER — Prepositions OA damper actuator to set proper preload.

NOTE: The auxiliary heating test, H vent damper 100% test, and preposition OA damper features will not be visible on the screen unless configured.

Once tests are complete, set unit test back to disable. Unit will automatically reset to disable after 1 hour.

Retry Mode — In Retry mode, the status LED will start to

flash slowly to signal that the control is trying to recover from an input fault. The control will stage off the outputs and try to again satisfy the thermostat used to terminal Y. Once the thermostat input calls are satisfied, the control will continue normal operation.

NOTE: If 3 consecutive faults occur without satisfying the thermostat input call to terminal Y, the control will go into lockout mode. The last fault causing the lockout is stored in memory and can be viewed by entering Test mode.

Aquazone™ Deluxe D Control LED Indicators —

STATUS LED — Status LED indicates the current status or mode of the Deluxe D control. The Status LED light is green.

TEST LED — Test LED will be activated any time the Deluxe D control is in Test mode. The Test LED light is yellow.

FAULT LED — Fault LED light is red. The fault LED will always flash a code representing the last fault in memory. If there is no fault in memory, the fault LED will flash code 1 and appear as 1 fast flash alternating with a 10-second pause. See Table 17.

There are 3 LED indicators on the Deluxe D control:

Table 15 — Complete C Control Current LED Status and Alarm Relay Operations

LED STATUS DESCRIPTION OF OPERATION ALARM RELAY

Off Complete C Control is non-functional Open

Slow Flash

Fast Flash Lockout Closed Flashing Code 1 Test Mode — No fault in memory Cycling Code 1 Flashing Code 2 Test Mode — HP Fault in memory Cycling Code 2 Flashing Code 3 Test Mode — LP Fault in memory Cycling Code 3 Flashing Code 4 Test Mode — FP1 Fault in memory Cycling Code 4 Flashing Code 5 Test Mode — FP2 Fault in memory Cycling Code 5 Flashing Code 6 Test Mode — CO Fault in memory Cycling Code 6 Flashing Code 7 Test Mode — Over/Under shutdown in memory Cycling Code 7 Flashing Code 8 Test Mode — PM in memory Cycling Code 8 Flashing Code 9 Test Mode — FP1/FP2 swapped fault in memory Cycling Code 9

LEGEND NOTES:

CO — Condensate Overflow LED — Light-Emitting Diode FP — Freeze Protection LP — Low Pressure HP — High Pressure PM — Performance Monitor

Normal Mode Open Normal Mode with PM Warning Cycle (Closed 5 sec, Open 25 sec)

Fault Retry Open Over/Under Voltage Shutdown Open (Closed after 15 minutes)

1. Slow flash is 1 flash every 2 seconds.

2. Fast flash is 2 flashes every 1 second.

3. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed by a 10-second pause. This sequence will repeat continually until the fault is cleared.

Table 16 — Complete C Control LED Code and Fault Descriptions

O economizer test, open

LED CODE FAULT DESCRIPTION

1 No fault in memory There has been no fault since the last power-off to power-on sequence 2 High-Pressure Switch HP open instantly 3 Low-Pressure Switch LP open for 30 continuous seconds before or during a call (bypassed for first 60 seconds) 4 Freeze Protection Coax — FP1 FP1 below temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation) 5 Freeze Protection Air Coil — FP2 FP2 below temp limit for 30 continuous seconds (bypassed for first 60 seconds of operation) 6 Condensate overflow Sensor overflow (grounded) for 30 continuous seconds 7 (Autoreset) Over/Under Voltage Shutdown "R" power supply is <19-vac or >30-vac 8 PM Warning Performance monitor Warning has occurred. 9 FP1 and FP2 Thermistors are swapped FP1 temperature is higher than FP2 in heating/test mode, or FP2 temperature is higher than FP1 in

LEGEND

FP — Freeze Protection LP — Low Pressure HP — High Pressure PM — Performance Monitor LED — Light-Emitting Diode

cooling/test mode.

Page 45

Table 17 — Aquazone™ Deluxe D Control Current LED Status and Alarm Relay Operations

DESCRIPTION

Normal Mode On Off Flash Last Fault Code in Memory Open Normal Mode with PM On Off Flashing Code 8 Cycle (closed 5 sec, open 25 sec, …) D Control is non-functional Off Off Off Open Test Mode — On Flash Last Fault Code in Memory Cycling Appropriate Code Night Setback Flashing Code 2 — Flash Last Fault Code in Memory — ESD Flashing Code 3 — Flash Last Fault Code in Memory — Invalid T-stat Inputs Flashing Code 4 — Flash Last Fault Code in Memory — No Fault in Memory On Off Flashing Code 1 Open HP Fault Slow Flash Off Flashing Code 2 Open LP Fault Slow Flash Off Flashing Code 3 Open FP1 Fault Slow Flash Off Flashing Code 4 Open FP2 Fault Slow Flash Off Flashing Code 5 Open CO Fault Slow Flash Off Flashing Code 6 Open Over/Under Voltage Slow Flash Off Flashing Code 7 Open (closed after 15 minutes) HP Lockout Fast Flash Off Flashing Code 2 Closed LP Lockout Fast Flash Off Flashing Code 3 Closed FP1 Lockout Fast Flash Off Flashing Code 4 Closed FP2 Lockout Fast Flash Off Flashing Code 5 Closed CO Lockout Fast Flash Off Flashing Code 6 Closed

LEGEND NOTES:

CO — Condensate Overflow LED — Light-Emitting Diode ESD — Emergency Shutdown LP — Low Pressure FP — Freeze Protection PM — Performance Monitor HP — High Pressure

STATUS LED

(Green)

TEST LED

(Yellow)

FAULT LED (Red) ALARM RELAY

1. If there is no fault in memory, the Fault LED will flash code 1.

2. Codes will be displayed with a 10-second Fault LED pause.

3. Slow flash is 1 flash every 2 seconds.

4. Fast flash is 2 flashes every 1 second.

5. EXAMPLE: “Flashing Code 2” is represented by 2 fast flashes followed by a 10-second pause. This sequence will repeat continually until the fault is cleared.

SERVICE

Perform the procedures outlined below periodically, as

indicated.

WARNING

To prevent injury or death due to electrical shock or contact with moving parts, open unit disconnect switch before servicing unit.

IMPORTANT: When a compressor is removed from this unit, system refrigerant circuit oil will remain in the compressor. To avoid leakage of compressor oil, the refrigerant lines of the compressor must be sealed after it is removed.

IMPORTANT: All refrigerant discharged from this unit must be recovered without exception. Technicians must follow industry accepted guidelines and all local, state and federal statutes for the recovery and disposal of refrigerants.

IMPORTANT: To avoid the release of refrigerant into the atmosphere, the refrigerant circuit of this unit must only be serviced by technicians who meet local, state and federal proficiency requirements.

Unit Inspection — Visually inspect the unit at least once

a month. Pay special attention to hose assemblies. Repair any leaks and replace deteriorated hoses immediately. Note any signs of deterioration or cracking.

System Flushing — Properly clean and flush system

periodically. Refer to Pre-Start-Up, System Cleaning and Flushing section.

Water Coil — Keep air out of the water coil. Check open

loop systems to be sure the well head is not allowing air to infiltrate the water line. Always keep lines airtight.

Inspect heat exchangers regularly and clean more frequently

if the unit is located in a “dirty” environment. The heat

exchanger should be kept full of water at all times. Open loop systems should have an inverted P trap placed in the discharge line to keep water in the heat exchanger during off cycles. Closed loop systems must have a minimum of 15 psig during the summer and 40 psig during the winter.

Check P trap frequently for proper operation.

FILTERS — Inspect filters. Establish a regular maintenance schedule. Clean or replace filters frequently depending on need.

To remove the filter from the 50PEC unit, slide the filter out of its frame located in the return air opening at the bottom front of the unit. When re-installing the filter, use the slide-in rails of the filter frame to guide the filter into the proper position.

CAUTION

To avoid fouled machinery and extensive unit clean-up, DO NOT operate units without filters in place. DO NOT use equipment as a temporary heat source during construction.

Refrigerant System — Verify air and water flow rates

are at proper levels before servicing. To maintain sealed circuitry integrity, do not install service gages unless unit operation appears abnormal.

Condenser Cleaning — Water-cooled condensers may

require cleaning of scale (water deposits) due to improperly maintained closed-loop water systems. Open water tower systems may require removal of sludge build-up due to induced contaminants.

Local water conditions may cause excessive fouling or pitting of tubes. Therefore, condenser tubes should be cleaned at least once a year, or more often if the water is contaminated.

Use standard coil cleaning procedures which are compatible with both the heat exchanger material and copper water lines. Generally, the more water flowing through the unit, the less chance for scaling, however flow rates over 3 gpm per ton can

Page 46

produce water (or debris) velocities that can erode the heat exchanger wall and ultimately produce leaks.

Proper water treatment can minimize tube fouling and pitting. If such conditions are anticipated, water treatment analysis is recommended. Refer to the Carrier System Design Manual, Part 5, for general water conditioning information.

CAUTION

Follow all safety codes. Wear safety glasses and rubber gloves when using inhibited hydrochloric acid solution. Observe and follow acid manufacturer’s instructions.

PUMP

SUCTION

PUMP SUPPORT

TANK

PRIMING CONN.

GAS VENT

GLOBE VALV ES

SUPPLY

1” PIPE

CONDENSER

REMOVE WATER REGULATING VALVE

Clean condensers with an inhibited hydrochloric acid solution. The acid can stain hands and clothing, damage concrete, and, without inhibitor, damage steel. Cover surroundings to guard against splashing. Vapors from vent pipe are not harmful, but take care to prevent liquid from being carried over by the gases.

Warm solution acts faster, but cold solution is just as effective if applied for a longer period.

GRAVITY FLOW METHOD — Do not add solution faster than vent can exhaust the generated gases.

When condenser is full, allow solution to remain overnight, then drain condenser and flush with clean water. Follow acid manufacturer’s instructions. See Fig. 37.

FILL CONDENSER WITH CLEANING SOLUTION. DO NOT ADD SOLUTION MORE RAPIDLY THAN VENT CAN EXHAUST GASES CAUSED BY CHEMICAL ACTION.

VENT PIPE

3’ TO 4’

PAIL

1” PIPE

5’ APPROX

FUNNEL

PAIL

CONDENSER

Fig. 37 — Gravity Flow Method

FORCED CIRCULATION METHOD — Fully open vent pipe when filling condenser. The vent may be closed when condenser is full and pump is operating. See Fig. 38.

Regulate flow to condenser with a supply line valve. If pump is a nonoverloading type, the valve may be fully closed while pump is running.

For average scale deposit, allow solution to remain in condenser overnight. For heavy scale deposit, allow 24 hours. Drain condenser and flush with clean water. Follow acid manufacturer’s instructions.

FINE MESH SCREEN

RETURN

Fig. 38 — Forced Circulation Method

Condensate Pans — Check condensate drain pans for

algae growth every three months. If algae growth is apparent, consult a water treatment specialist for proper chemical treatment. The application of an algaecide every three months will typically eliminate algae problems in most locations. Check condensate hose for leaks and blockage and correct any problems.

Blower Motors — All units have lubricated fan motors.

BLOWER MOTORS SHOULD NEVER BE LUBRICATED UNLESS OBVIOUS, DRY OPERATION IS SUSPECTED. Periodic maintenance oiling is not recommended because it will result in dirt accumulating on excess oil and cause eventual motor failure. Conduct annual dry operation check and amperage check to ensure amp draw is no more than 10% greater than that indicated by serial plate data.

Compressor — Conduct an amperage check annually on

the compressor and fan motor. Amperage draw should not exceed normal full load amps. Maintain a log of amperage to detect deterioration prior to component failure.

Safety Control Reset — The 50PEC heat pumps are

furnished with high-pressure, low-pressure and lowtemperature cutouts to prevent the machine from operating at abnormal conditions of temperature or water flow.

The contacts of the high-pressure control used on 50PEC units are designed to open at 376 psig and automatically re-close at 304 psig. The Complete C or Deluxe D control monitors this and other functions such as refrigerant temperatures and pressures and condensate overflow and will interrupt unit heating or cooling operation.

The machine must be reset manually. Reset is accomplished by pressing the STOP button and then pushing either HI HEAT, LOW HEAT, HI COOL or LO COOL to restart the unit in the desired mode of operation. (The 50PEC unit can also be reset by opening and closing the supply power disconnect switch.)

IMPORTANT: If the unit must be reset more than twice, check the unit for a dirty filter, abnormal entering water temperature, inadequate or excessive water flow, and internal malfunctions. If the unit continues to cut out, contact a trained service technician.

WARNING

When replacing the compressor contactor or lockout relay in a unit with electromechanical controls, use only Carrier factory authorized parts. Substitution of other components may result in an inoperative safety circuit and may cause a hazardous condition.

Page 47

Checking System Charge — Units are shipped with

full operating charge. If recharging is necessary:

1. Insert thermometer bulb in insulating rubber sleeve on liquid line near filter drier. Use a digital thermometer for all temperature measurements. DO NOT use a mercury or dial-type thermometer.

2. Connect pressure gage to discharge line near compressor.

3. After unit conditions have stabilized, read head pressure on discharge line gage.

NOTE: Operate unit a minimum of 15 minutes before checking charge. From standard field-supplied PressureTemperature chart for R-410A, find equivalent saturated condensing temperature.

4. Read liquid line temperature on thermometer, then subtract from bubble point temperature. The difference equals subcooling temperature.

Refrigerant Charging

WARNING

To prevent personal injury, wear safety glasses and gloves when handling refrigerant. Do not overcharge system — this can cause compressor flooding.

NOTE: Do not vent or depressurize unit refrigerant to atmosphere. Remove and recover refrigerant following accepted practices.

Air Coil Fan Motor Removal

CAUTION

Before attempting to remove fan motors or motor mounts, place a piece of plywood over evaporator coils to prevent coil damage.

Motor power wires need to be disconnected from motor

terminals before motor is removed from unit.

1. Shut off unit main power supply.

2. Loosen bolts on mounting bracket so that fan belt can be removed.

3. Loosen and remove the 2 motor mounting bracket bolts on left side of bracket.

4. Slide motor/bracket assembly to extreme right and lift out through space between fan scroll and side frame. Rest motor on a high platform such as a step ladder. Do not allow motor to hang by its power wires.

Replacing the WSHP Open Controller’s Battery —

CR2032 battery provides a minimum of 10,000 hours of data retention during power outages.

NOTE: Power must be ON to the WSHP Open controller when replacing the battery, or the date, time and trend data will be lost.

1. Remove the battery from the controller, making note of

2. Insert the new battery, matching the battery's polarity

The WSHP Open controller’s 10-year lithium

the battery's polarity.

with the polarity indicated on the WSHP Open controller.

TROUBLESHOOTING

When troubleshooting problems with a WSHP, consider the

following and refer to Table 18.

Thermistor — A thermistor may be required for single-

phase units where starting the unit is a problem due to low voltage.

WSHP Open Controller — With the WSHP Open con-

troller option, the 100 most recent alarms can be viewed using the BACview

To view the alarms:

1. Navigate to the Alarm Status screen from the Home

2. From the Alarm Status screen, press the Alarm softkey to

3. To view alarms which have been corrected, scroll down

alarm status and alarm history.

screen using the arrow softkeys. The screen will display the current alarm status, either normal or Alarm, and allow for scrolling through the unit’s alarm status.

view the 100 most recent alarms which are labeled with date and time for easy reference.

NOTE: Active faults can be viewed by scrolling down, these faults indicate a possible bad sensor or some condition which may not merit an alarm.

through the Alarm screen to Return Top Normal screen. NOTE: Alarms are automatically reset once alarm con-

dition has been corrected. See Table 18 for possible alarm cause and solution.

Page 48

Table 18 — Troubleshooting

FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION

Main Power Problems X X Green Status LED Off Check line voltage circuit breaker and disconnect.

Check for line voltage between L1 and L2 on the contactor. Check for 24-vac between R and C on controller. Check primary/secondary voltage on transformer.

HP Fault — Code 2 High Pressure

X Reduced or no airflow in

X Air temperature out of range

X X Overcharged with refrigerant Check superheat/subcooling vs. typical operating condition. X X Bad HP switch Check switch continuity and operation. Replace.

LP Fault — Code 3 Low Pressure/Loss of Charge

FP1 Fault — Code 4 Water Freeze Protection

FP2 Fault — Code 5 Air Coil Freeze Protection

Condensate Fault — Code 6

Over/Under Voltage — Code 7 (Auto Resetting)

Performance Monitor — Code 8

No Fault Code Shown X X Compressor overload Check and replace if necessary.

Unit Short Cycles X X Dirty air filter Check and clean air filter.

Only Fan Runs X X Thermostat position Ensure thermostat set for heating or cooling operation.

LEGEND

FP — Freeze Protection HP — High Pressure LED — Light-Emitting Diode LP — Low Pressure RV — Reversing Valve

X X Insufficient charge Check for refrigerant leaks. X Compressor pump down at

X Reduced or no water flow in

X Inadequate antifreeze level Check antifreeze density with hydrometer. X Improper freeze protect set-

X Water temperature out of

X X Bad thermistor Check temperature and impedance correlation.

X X Bad thermistor Check temperature and impedance correlation. X X Blocked drain Check for blockage and clean drain. X X Improper trap Check trap dimensions and location ahead of vent.

X X Under voltage Check power supply and 24-vac voltage before and during operation.

X X Over voltage Check power supply voltage and 24 vac before and during operation.

X Heating mode FP2>125 F Check for poor airflow or overcharged unit.

X X Control board Reset power and check operation.

X X Unit in Test mode Reset power or wait 20 minutes for auto exit. X X Unit selection Unit may be oversized for space. Check sizing for actual load of space. X X Compressor overload Check and replace if necessary.

X X Unit locked out Check for lockout codes. Reset power. X X Compressor overload Check compressor overload. Replace if necessary. X X Thermostat wiring Check Y and W wiring at heat pump. Jumper Y and R for compressor

X Reduced or no water flow in

cooling

X Water temperature out of

range in cooling

heating

in heating

start-up

heating

ting (10 F vs. 30 F)

range

X Reduced or no airflow in

cooling

X Air temperature out of range Too much cold vent air. Bring entering-air temperature within design

X Improper freeze protect set-

ting (10 F vs. 30 F)

X Poor drainage Check for piping slope away from unit.

X Moisture on sensor Check for moisture shorting to air coil.

X Cooling mode FP1>125 F

OR FP2< 40 F

Check pump operation or valve operation/setting. Check water flow adjust to proper flow rate. Bring water temperature within design parameters.

Check for dirty air filter and clean or replace. Check fan motor operation and airflow restrictions. Dirty air coil — construction dust, etc. Perform preventative mainte-

nance; Clean air coil. High external static. Check duct design and downstream interference. Bring return-air temperature within design parameters.

Check charge and start-up water flow.

Check pump operation or water valve operation/setting. Plugged strainer or filter. Clean or replace. Check water flow adjust to proper flow rate.

Clip JW3 jumper for antifreeze (10 F) use.

Bring water temperature within design parameters.

Check for dirty air filter and clean or replace. Check fan motor operation and airflow restrictions. High external static. Check duct design and downstream interference.

parameters. Normal airside applications will require 30 F only.

Check slope of unit toward outlet. Poor venting. Check vent location.

Check power supply wire size. Check compressor starting. Check 24-vac and unit transformer tap for correct power supply voltage.

Check 24-vac and unit transformer tap for correct power supply voltage.

Check for poor water flow or airflow.

operation in Test mode.

Page 49

Table 18 — Troubleshooting (cont)

FAULT HEATING COOLING POSSIBLE CAUSE SOLUTION

Only Compressor Runs X X Thermostat wiring Check G wiring at heat pump. Jumper G and R for fan operation.

Check Y and W wiring at heat pump. Jumper Y and R for compressor

X X Fan motor relay Jumper G and R for fan operation. Check for line voltage across BR

Unit Does Not Operate in Cooling

Insufficient Capacity/ Not Cooling or Heating Properly

High Head Pressure X Reduced or no airflow in

Low Suction Pressure X Reduced water flow in

Low Discharge Air Temperature in Heating

High Humidity X Too high airflow Check blower.

LEGEND

FP — Freeze Protection HP — High Pressure LED — Light-Emitting Diode LP — Low Pressure RV — Reversing Valve

X X Fan motor Check for line voltage at motor. Check capacitor.

X X Dirty filter Replace or clean. X Reduced or no airflow in

X X Leaky ductwork Check supply and return-air temperatures at the unit and at distant

X X Low refrigerant charge Check superheat and subcooling. X X Restricted metering device Check superheat and subcooling. Replace.

X X Thermostat improperly

X X Unit undersized Recheck loads and sizing check sensible cooling load and heat pump

X X Scaling in water heat

X X Inlet water too hot or cold Check load, loop sizing, loop backfill, ground moisture.

X Air temperature out of range

X X Unit overcharged Check superheat and subcooling. Reweigh in charge. X X Non-condensables in

X X Restricted metering device Check superheat and subcooling. Replace.

X Water temperature out of

X X Insufficient charge Check for refrigerant leaks. X Too high airflow Check blower. X Poor performance See ‘Insufficient Capacity’ above.

X Reversing valve Set for cooling demand and check 24-vac on RV coil and at control.

X Thermostat setup Check for ‘O’ RV setup not ‘B’. X Thermostat wiring Check O wiring at heat pump. Jumper O and R for RV coil.

heating

X Reduced or no airflow in

cooling

X Defective reversing valve Perform RV touch test.

located

exchanger

heating

X Reduced or no water flow in

cooling

X Inlet water too hot Check load, loop sizing, loop backfill, ground moisture.

in heating

X Scaling in water heat

exchanger

system

heating

range

X Reduced airflow in cooling Check for dirty air filter and clean or replace.

X Air temperature out of range Too much cold vent air. Bring entering air temperature within design

X Unit oversized Recheck loads and sizing check sensible cooling load and heat pump

operation in Test mode.

contacts. Check fan power enable relay operation (if present).

If RV is stuck, run high pressure up by reducing water flow and while operating engage and disengage RV coil voltage to push valve.

Check for dirty air filter and clean or replace. Check fan motor operation and airflow restrictions. High external static. Check duct design and downstream interference. Check for dirty air filter and clean or replace. Check fan motor operation and airflow restrictions. High external static. Check duct design and downstream interference.

duct registers if significantly different, duct leaks are present.

Check location and for air drafts behind thermostat.

capacity. Perform scaling check and clean if necessary.

Check for dirty air filter and clean or replace. Check fan motor operation and airflow restrictions. High external static. Check duct design and downstream interference. Check pump operation or valve operation/setting. Check water flow adjust to proper flow rate.

Bring return-air temperature within design parameters.

Perform scaling check and clean if necessary.

Vacuum system and reweigh in charge.

Check pump operation or water valve operation/setting. Plugged strainer or filter. Clean or replace. Check water flow adjust to proper flow rate. Bring water temperature within design parameters.

Check fan motor operation and airflow restrictions. High external static. Check duct design and downstream interference.

parameters.

capacity.

Page 50

APPENDIX A — WSHP OPEN SCREEN CONFIGURATION

SCREEN NAME POINT NAME

Operating Mode

SPT F Displays SPT SAT F Displays SAT

Condenser Leaving

Temperature

Condenser Entering

Temperature

Fan

Equipment

Status

Alarm Status

Sensor

Calibration

BAS — Building Automation System DCV — Demand Controlled Ventilation IAQ — Indoor Air Quality OAT — Outdoor Air Temperature RH — Relative Humidity SAT — Supply Air Temperature SPT — Space Temperature TPI — Third Party Integration

Compressor Capacity 0 - 100% Displays compressor capacity

Damper Position 0 - 100%

O Economizer 0 - 100% Displays position of economizer valve

Auxiliary Heat 0 - 100%

Space RH 0 - 100%

Dehumidification Inactive/Active

IAQ CO

SPT Alarm Status

Alarming SPT F

SPT Alarm Limit F

SPT Sensor Alarm

Status

IAQ Alarm Status Normal/Alarm Current IAQ/ventilation condition

Compressor Alarm

Status

SAT Alarm Status Normal/Alarm Current SAT condition

Condensate Overflow

Alarm Status

Condenser Water Tem-

perature Alarm Status

Filter Alarm Status Normal/Alarm Current filter condition

Space RH Alarm Status Normal/Alarm Current space RH condition

OAT Alar m Status Normal/Alarm

Airside Linkage Status Normal/Alarm Current linkage status if enabled

Condenser Water

Linkage

SAT

SAT Offset X -9.9 - 10.0 F 0 F Used to correct sensor reading

Leaving Condenser Water Temperature

Leaving CW Offset X -9.9 - 10.0 F 0 F Used to correct sensor reading

Rnet Sensor Temperature

Rnet Offset X -9.9 - 10.0 F 0 F Used to correct sensor reading

RH % Displays Space RH value

RH Sensor Offset X -15% - 15% 0 % Used to correct sensor reading

LEGEND

PASSWO RD

LEVEL

No Password

Required

No Password

Required

Admin Password level access only

EDITABLE RANGE DEFAULT NOTES

Off, Fan Only, Economize,

Cooling, Heating, Cont Fan,

Test, Start Delay, Dehumidify

Off/Low Speed/

Medium Speed

High Speed/On

0 - 9999 ppm Displays the space CO2 level

Normal/Alarm

Normal/Alarm Current compressor condition

Normal/Alarm

Normal/Alarm Current linkage status if enabled

F Display SAT

°°

F Displays SPT

°°

Displays unit operating mode

Displays leaving condenser

water temperature

Displays entering condenser

water temperature (Value

will not update when compressor

Displays current damper position (Viewable only if Ventilation DMP

reheat valve (Viewable only if Leaving

Air Auxiliary Heat Type = 2 position,

Displays space RH% (Viewable only if

Displays if dehumidification is active

Dehumidification Reheat = Installed)

exceeded the alarm limit (when SPT

Displays the SPT alarm limit that was

exceeded; causing the alarm condition

(when SPT alarm above is in Alarm)

SPT sensor - ALARM is displayed

should the sensor fail to communicate

Current status of the condensate

is operating)

Displays fan speed status

Type = 2 position or DCV)

Displays position of auxiliary

1 stage Elect or Modulating)

Humidity Sensor = Installed)

(Viewable only if Factory

Displays current space

temperature condition Displays the SPT that

alarm above is in Alarm)

Displays the status of the Rnet

with the control module

drain (overflow switch)

Current status of the

condenser water

Current status of the OAT

broadcast function

Displays Leaving Condenser

Water Temperature

Page 51

APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)

SCREEN NAME POINT NAME

Operating Mode

Fan Operating Mode Auto/Continuous/Always On

Occupancy Status Unoccupied/Occupied Displays the current occupancy status

Occupancy Control

Outside Air

Temperature

SPT F Displays SPT

SPT Status

SPT Sensor Status Inactive/Connected

Condensate Overflow Normal/Alarm

Cooling Set Point F

Unit

Maintenance

System Settings

Occupancy

Maintenance

Schedule

Configuration

Heating Set Point F

Set Point Adjustment F

Auxiliary Heat Control

Set Point

O Economizer

Control Set Point

Calculated IAQ/

Ventilation Damper

position

Active Compressor

Stages

SAT F Displays SAT

Reset Filter Alarm X No/Yes

Overflow Contact Closed/Open

Occupancy Contact Closed/Open

BAS/Keypad Override X

OAT Input N/A / Network

BACnet X See TPI

Keypad Configuration X Mapping

Password X Changes password

Network X See TPI

BACnet Time Master X See TPI

Clock Set X Changes clock/time setting

Override Schedules

Pushbutton Override Inactive/Active Occupied

Keypad Override

Schedules Inactive/Active Occupied

Occupancy Contact Inactive/Active Occupied

BAS on/off Inactive/Active Occupied

Local Occupancy

Schedules

Local Holiday

Schedules

Local Override

Schedules

BACnet Occupancy

Schedules

LEGEND

PASSWORD

LEVEL

No Password

required

No Password

required

User/Admin

Password level

access

EDITABLE RANGE DEFAULT NOTES

Off, Fan Only,Economize,

Cooling, Heating, Cont Fan, Test,

Start Delay, Dehumidify

Always Occupied/Local Schedule/

BACnet Schedule/BAS Keypad/

Occupied Contact/Holiday Schedule/

Override Schedule/Pushbutton

Override/Unoccupied None

Normal/Above Limit/Below

Limit/Sensor Failure

0/1/2

Inactive/Occupied/

Unoccupied

Inactive/Active Occupied

Inactive/Active Occupied/Active

Unoccupied

X Disable/Enable Enable

X Disable/Enable Disable

Inactive

Displays unit operating mode

Displays how the fan is configured

Displays OAT (Viewable only if OAT

Displays the connection status

Displays the offset values from the Rnet

user set point adjustment that is being

applied to the configured set points

Displays the calculated set point being

used for auxiliary heating control

Displays the calculated set point being

Displays the ventilation damper

position calculated by the DCV control

Used to reset the filter alarm timer after

the filter has been cleaned or replaced

Displays the state of the condensate

Displays the state of the external/

remote occupancy input switch contact

Provides capability to force the

occupied or unoccupied mode

Displays if an OAT value is being

Used to display the active and

inactive occupancy control inputs

Used to define which occupancy inputs

to operate

Displays the origin of the

occupancy control

is a network broadcast)

Displays the SPT status

of the Rnet sensor

Displays the status of the

condensate overflow

Displays the actual set point

being used for cooling control

Displays the actual set point

being used for heating control

used for economizer control

Displays the actual number of

compressor stages operating

overflow switch contact

equipment to operate in an

received from the Network

are used to determine

occupancy mode.

Page 52

APPENDIX A — WSHP OPEN SCREEN CONFIGURATION (cont)

→

→→→

→

SCREEN NAME POINT NAME

Occupied Heating

Occupied Cooling X 55 - 99 F 76 F

Unoccupied Heating X 40 - 90 F 55 F

Unoccupied Cooling X 55 - 99 F 90 F

Effective Heating

Set Point

Effective Cooling

Set Point

Optimal Start

Configuration

Occupied RH

Set Points

Configuration

Schedule

Weekly Schedule

Configuration

Schedule

Exception

Schedules 1 - 12

LEGEND

Set Point

Unoccupied RH

Set Point

DCV CTRL Start

Set Point

DCV Max CTRL

Set Point

Start Time

End Time X 00:00 - 24:00 18:00

Mon X No/Yes Yes

Tu e X N o /Ye s Yes

Wed X No/Yes Yes

Thur X No/Yes Yes

Fri X No/Yes Ye s

Sat X No/Yes No

Sun X No/Yes No

Start Month

Start Day X 0 - 31 0

Start Time X 00:00 - 23:59 0:00

End Month X 0 - 12 0

End Day X 0 - 31 0

End Time X 00:00 - 24:00 0:00

PASSWORD

LEVEL

User/Admin

Password level

access

User/Admin

Password level

access

User/Admin

Password level

access

EDITABLE RANGE DEFAULT NOTES

X 40 - 90 F 72 F

X0 - 10 F

X 0 - 100% 65%

X 0 - 100% 90%

X 0 - 9999 ppm 500 ppm

X 0 - 9999 ppm 1050 ppm

X 00:00 - 23:59 06:00

X0 - 120

°°

Defines the Occupied

Heating Set Point

Defines the Occupied

Cooling Set Point

Defines the Unoccupied

Heating Set Point

Defines the Unoccupied

Cooling Set Point

Takes into effect bias (maximum

allowable set point deviation)

Takes into effect bias (maximum

allowable set point deviation)

Uses historical data to calculate

ramp up time so as to be at set point

at occupied/unoccupied time

Defines the control set point used

during occupied periods (Viewable

only if Humidity Sensor = Installed/

Determines when to start

Dehumidification when occupied) Defines the control set point used

during unoccupied periods

(Viewable only if Humidity Sensor =

Installed/Determines when to start

Dehumidification when unoccupied)

Defines the control set point used to

start increasing ventilation during

occupied periods (Viewable only if

Ventilation DMP Type = DCV)

Defines the control set point

used to define where the ventilation

will reach its maximum limit during occupied periods (Viewable only if Ventilation DMP Type = DCV/Used

to determine DCV ending control

Defines the start time for an

Defines the ending time of an

Determines if this day is included

Defines the start month of this

Defines the start day of this holiday

Determines the start time for this

Defines the month to end this

Defines the day to end this holiday

Determines the time to end this

point)

occupied period

in this schedule

hoilday schedule

schedule

hoilday schedule

schedule

Page 53

APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)

→

SCREEN NAME POINT NAME

Fan Mode

Fan On Delay X 0 - 30 sec 10 sec

Fan Off Delay X 0 - 180 sec 45 sec

Heating Enable X Disable/Enable Enable

Cooling Enable X Disable/Enable Enable

Minimum SAT in

Configuration

Unit

Configuration

Service

Test

LEGEND

Cooling

Maximum SAT in

Heating

Damper Ventilation

Position

DCV Maximum Vent

Position

Filter Alarm Timer X 0 - 9999 hrs 0 hrs Disables Filter Alarm if set to 0

Pushbutton Override X Disable/Enable Enable Enables Override Feature on Rnet sensor

SPT Sensor Set Point

Adjustment

Lockout Cooling if

OAT <

Lockout Heating if

OAT >

Power Fail Restart

Delay

Occupancy Schedules X Disable/Enable Enable Enables unit occupied

Set Point Separation X 2 - 9 F 4 F

Test Mode

Fan Test X Disable/Enable Disable

Fan Speed

Compressor Test X Disable/Enable Disable

Dehumidification Test X Disable/Enable Disable

Testing Compressor

Aux Heating Test X Disable/Enable Disable

O Economizer Test X Disable/Enable Disable

Preposition OA

Damper

Open Vent

Damper 100%

SAT F Displays SAT

LCWT F

PASSWORD

LEVEL

Admin Password

level access only

Admin Password

level access only

EDITABLE RANGE DEFAULT NOTES

Auto= Intermittant operation during both

occupied and unoccupied periods/

X40 - 60 F50 F

X 80 - 140 F 110 F

X 0 - 100% 100%

X Disable/Enable Enable

X -65 - 80 F -65 F

X 35 - 150 F 150 F

X 0 - 600 sec 60 sec Delay before equipment starts

X Disable/Enable Disable

X Disable/Enable Disable Used to test OA damper operation

Auto/Continuous/

Always On

°°

Off/Low Speed/Medium

Speed/High Speed/On

Inactive/Heating/Cooling/

Dehumidify/TimeGard

Wait

Continuous

Continuous = Intermittant during unoccupied

periods and continuous during occupied

periods/Always on = fan operates

continuously during both occupied and

unoccupied periods

Defines the delay time before the fan begins

to operate after heating or cooling is started

Defines the amount of time the fan will

continue to operate after heating or

cooling is stopped

Provides capability to manually

disable heating operation

Provides capability to manually

disable cooling operation

Defines the minimum acceptable operating

temperature for the Supply Air

Defines the maximum acceptable operating

temperature for the Supply Air

Normally set to 100% if 2 position damper

type or set to minimum ventilation position if

Usually set at 100% - Used to limit maximum

Enables Set Point adjustment capability

Cooling is locked out when OAT is less than

configured value and OAT is actively being

Heating is locked out when OAT is greater

than configured value and OAT is actively

Used to enable test mode. Will automatically

Used to test all fan speeds. Sequences fan

from low to high and operates each speed for

1 minute. Resets to disable on completion

Used to test compressor cooling and heating

operation. Sequences cooling stage 1, then

stage 2, then heating stage 2 and reduces

capacity to stage 1. Operates for 1 minute per

Used to test entering/return air water loop

economizer coil operation. Sequences fan on

and opens economizer coil water valve for 1

minute. Resets to disable on completion

damper type = DCV

damper opening in DCV mode

on Rnet Sensor

broadcast

being broadcast

Used to enforce minimum

set point separation

reset to disable after 1 hour

Displays current fan operation

step. Resets to disable on completion.

Used to test dehumification mode -

Operates for 2 minutes. Resets to

disable on completion.

Displays compressor test mode

Used to test auxiliary heat.

Sequences fan on and enables

heating coil for 1 minute. Resets to

disable on completion

Used to preposition OA damper

actuator to set proper preload

Displays Leaving Condenser

Water Temperature

Page 54

APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)

→

SCREEN NAME POINT NAME

# of Fan Speeds

G Output Type X Fan On/Fan Low Fan On

Compressor Stages X One Stage/Two Stages One Stage

Reversing Valve Type X O type output/B type output O type

Leaving Air Auxiliary

Heat Type

Entering Air Water

Economizer Type

2-Position Water

Val ve Type

Modulating Water

Val ve Type

Ventilation Damper

Ty pe

Damper Actuator Type X (0-10 volt)/(2-10 volt) 0-10 volt

Configuration

Service

Configuration

LEGEND

Humidity Sensor X None/Installed None

Factory Dehumidifica-

tion Reheat Coil

Occupancy Input Logic

Condensate Switch

Alarm Delay

Condensate Switch

Alarm State

Minimum Condenser

Water Temperature in

Heating

Maximum Condenser Water Temperature in

Heating

Minimum Condenser

Water Temperature in

Cooling

Maximum Condenser Water Temperature in

Cooling

IAQ sensor

minimum input

IAQ sensor

maximum input

IAQ sensor

minimum output

IAQ sensor

maximum output

PASSWORD

LEVEL

Admin Password level access only

EDITABLE RANGE DEFAULT NOTES

X 1,2,3 3

X None/2-Position/Modulating None

X Normally Closed/Normally Open

X None/2-Position/DCV None

X None/Installed None

X Occupied Open/Occupied Closed

X 5 - 600 seconds 10 sec

X Alarm OPEN/Alarm CLOSED

X25 - 60 F60 F

X 65 - 100 F 90 F

X30 - 60 F60 F

X 85 - 120 F 95 F

X 0 - 5 ma 4 ma

X 5 - 20 ma 20 ma

X 0 - 9999 ppm 0 ppm

X 0 - 9999 ppm 2000 ppm

None/2-Position HW/1 Stage

Electric/Modulating HW

°°

None

Normally

Closed

Normally

Closed

Occupied CLOSED

Alarm

CLOSED

Used to set number of

fan motor speeds

When set to Fan On, G output is energized when ever any fan speed is active (required for ECM and Fan

control board). When set to Fan

Low, output is only energized for

Determines type of modulating

Set to Installed if factory-installed

Used to determine external occu-

pancy switch contact occupied state

Delay before equipment alarms on

acceptable water loop temperature

Maximum output current (mA) for

Corresponding value in ppm for

Low Speed

Defines the number of stages of compression

Determines reversing valve

signal output type

Determines Auxiliary

Reheat Coil Type

Determines Entering Air

Economizer Coil Type

Determines type of 2-position

water valve used

Determines Type of ventilation

damper control to be used

Used to determine ventilation

damper output signal range

(closed - open)

Set to Installed if Humidity

sensor is present

dehumidification reheat coil

is present

high condensate level

Determine Alarm state of

condensate switch input

Determines the minimum

to start heating

Determines the maximum

to start heating

Determines the minimum

to start cooling

Determines the maximum

to start cooling

Minimum output current (mA)

for IAQ sensor

IAQ sensor

minimum output current

maximum output current

Page 55

APPENDIX A — WSHP SCREEN OPEN CONFIGURATION (cont)

→

SCREEN NAME POINT NAME

SPT Occupied Alarm

Hysteresis

SPT Alarm Delay X 0 - 30 min per degree 10 min

SPT Unoccupied Low

Alarm Temperature

SPT Unoccupied High

Alarm Temperature

SAT Low SAT

Alarm Limit

SAT High SAT

Alarm Limit

Condensate Overflow

Alarm Delay

Space Humidity Occupied

High Alarm Limit

Configuration

Alarm

Configuration

Linkage

Space Humidity Alarm

Delay

Space Humidity Unoccu-

pied High Alarm Limit

IAQ/Ventilation Occupied

High Alarm Limit

IAQ/Ventilation

Alarm Delay

Rnet Sensor SPT Alarm X Ignore/Display Ignore

Rnet Sensor SAT Alarm X Ignore/Display Ignore

Rnet Sensor Compressor

Lockout Alarm

Rnet Sensor Condenser

Water Temperature Alarm

Rnet Sensor Condensate

Overflow Alarm

Rnet Sensor Dirty

Filter Alarm

Rnet Sensor Space

High Humidity Alarm

Loop Control Network

Number

Loop Control Network

Address

Number of Linked Heat

Pumps

LEGEND

PASSWO RD

LEVEL

Admin Password level access only

EDITABLE RANGE DEFAULT NOTES

Defines the hysteresis applied above

X2 - 20 F5 F

X 35 - 90 F 45 F

X 45 - 100 F 95 F

X 15 - 90 F 45 F

X 90 - 175 F 120 F

X 5 - 600 sec 10 sec

X 45% - 100% 100%

X 0 - 30 min per % RH 5 min

X 45% - 100% 100%

X 0 - 9999 ppm 1100 ppm

X 0.1 - 1.0 min per ppm 0.25 min

X Ignore/Display Display

X Ignore/Display Ignore

°°

the cooling and below the heating set

points before an alarm condition will

Used to calculate the delay time before

an alarm is generated after the alarm

Defines the fixed unoccupied

Defines the fixed minimum

Defines the fixed maximum

Defines the delay time before an alarm

is generated after the alarm condition

Defines the fixed occupied

high space RH alarm limit

Used to calculate the delay time before

an alarm is generated after the alarm

Defines the fixed unnoccupied

high space RH alarm limit

Defines the fixed occupied high

space IAQ/Ventilation alarm limit

Used to calculate the delay time before

an alarm is generated after the alarm

Determines if the SPT alarm is

displayed on the local Rnet sensor

Determines if the SAT alarm is

displayed on the local Rnet sensor

Determines if the Compressor Lockout

alarm is displayed on the local Rnet

Determines if the Condenser Water

Temperature alarm is displayed on the

Determines if the Condensate

Overflow alarm is displayed on the

Determines if the Dirty Filter alarm is

displayed on the local Rnet sensor

Determines if the High Space

RH alarm is displayed on the

occur

condition occurs

ow SPT alarm limit

high SPT alarm limit

SAT alarm limit

occurs

condition occurs

sensor

local Rnet sensor

See TPI

Page 56

Page 57

Page 58

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

Catalog No. 04-53500052-01 Printed in U.S.A. Form 50PEC-2SI Pg 58 7-09 Replaces: 50PEC-1SI

Page 59

50PEC UNIT

START-UP CHECKLIST

CUSTOMER:___________________________ JOB NAME: _______________________________________

MODEL NO.:___________________________ SERIAL NO.:____________________ DATE:_________

I. PRE-START-UP

DOES THE UNIT VOLTAGE CORRESPOND WITH THE SUPPLY VOLTAGE AVAILABLE? (Y/N)

HAVE THE POWER AND CONTROL WIRING CONNECTIONS BEEN MADE AND TERMINALS TIGHT? (Y/N)

HAVE WATER CONNECTIONS BEEN MADE AND IS FLUID AVAILABLE AT HEAT EXCHANGER? (Y/N)

HAS PUMP BEEN TURNED ON AND ARE ISOLATION VALVES OPEN? (Y/N)

HAS CONDENSATE CONNECTION BEEN MADE AND IS A TRAP INSTALLED? (Y/N)

IS AN AIR FILTER INSTALLED? (Y/N)

II. START-UP

IS FAN OPERATING WHEN COMPRESSOR OPERATES? (Y/N)

UNIT VOLTAGE — COOLING OPERATION

PHASE AB VOLTS

PHASE AB AMPS

CONTROL VOLTAGE

IS CONTROL VOLTAGE ABOVE 21.6 VOLTS? (Y/N) . IF NOT, CHECK FOR PROPER TRANSFORMER CONNECTION.

TEMPERATURES

FILL IN THE ANALYSIS CHART ATTACHED.

COAXIAL HEAT EXCHANGER

COOLING CYCLE: WATER IN

F WATER OUT F ft wg gpm

HEATING CYCLE: WATER IN

F WATER OUT F ft wg gpm

AIR COIL COOLING CYCLE:

AIR IN

F AIR OUT F

HEATING CYCLE: AIR IN

F AIR OUT F

CL-1

Page 60

HEATING CYCLE ANALYSIS

ft wg

SST (SATU RATED SUCTION TEMPERATURE)

AIR

COIL

EXPANSION

VALV E

LIQUID LINE

COOLING CYCLE ANALYSIS

AIR

COIL

SUCTION

COMPRESSOR

COAX

WATER IN

ft wg

WATER OUT

ft wg

LOOK UP PRESSURE DROP IN TABLE 12 TO DETERMINE FLOW RATE

DISCHARGE

a50-8453

ft wg

SUCTION

COMPRESSOR

SST (SATURATED SUCTION TEMPERATURE)

EXPANSION

VALV E

LIQUID LINE

WATER IN

COAX

ft wg

WATER OUT

a50-8454

ft wg

LOOK UP PRESSURE DROP IN TABLE 12 TO DETERMINE FLOW RATE

DISCHARGE

HEAT OF EXTRACTION (ABSORPTION) OR HEAT OF REJECTION =

FLOW RATE (gpm) x TEMP. DIFF. (DEG. F) x FLUID FACTOR* =

(Btu/hr)

SUPERHEAT = SUCTION TEMPERATURE – SATURATED SUCTION TEMPERATURE

(DEG F)

SUBCOOLING = SATURATED CONDENSING TEMPERATURE – LIQUID LINE TEMPERATURE

*Use 500 for water, 485 for antifreeze.

(DEG F)

97B0035N06

CUT ALONG DOTTED LINE CUT ALONG DOTTED LINE

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

Catalog No. 04-53500052-01 Printed in U.S.A. Form 50PEC-2SI CL-2 7-09 Replaces: 50PEC-1SI

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Carrier 50PEC09-18 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual