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Johnson Controls PCE4 Series, Installation Manual

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Johnson Controls PCE4 Series Installation Manual Download Page 15

5538117-UIM-B-0319

Johnson Controls Ducted Systems

15

SECTION VIII: TYPICAL WIRING DIAGRAMS

 FIGURE 10:  

Connection Wiring Diagram

208/230-3-60

THREE PHASE

COOLING UNIT WITH OR WITHOUT 

ELECTRIC HEAT

CAUTION - OPEN ALL DISCONNECTS

BEFORE SERVICING THIS UNIT

BLU 29

RED 30

WHT 25

GRN 24

Y

R

G

C

THERMOSTAT

USE COPPER

CONDUCTORS

ONLY

YEL 20

GRN 4

(LOW)

(LOW/MED)

(MED)

(MED/HIGH)

(HIGH)

C

L

G

N

1

2

3

4

5

1

2

3

4

HI PRESS

LOW

VOLTAGE

BOX

W1

(COOLING SPEED)

(HEATING SPEED)

(CONTINUOUS FAN)

BLK

YEL

BLU

BLK/WHT 12

BRN/WHT 13

PUR 1

RED 9

OD  FAN
MOTOR

POWER SUPPLY
   208/230-3-60

BLK 6

BLK 5

COM

PRIMARY

24V SEC

75 VA

208V

230V

COMPR

L1

L3

L2

L1

T1

T2

L2

CAPACITOR

RED 7

GRN

PUR 2

YEL 18

GRN 21

LINE VOLTAGE

FIELD INSTALLED POWER

LOW VOLTAGE

FIELD INSTALLED CONTROL

5

4

3

2

6

1

BLK

BRN

GRN 10

RED

BLOWER
 MOTOR

SHARED TAP

SEE NOTE 6

XFMR

BLU 23

5

4

3

2

6

1

BLU 27

YEL 19

 3A FUSE

WHT 32

WHT 26

BRN 28

W2

FEMALE CONNECTOR

FOR 6HK HEATER KIT

OR SEQUENCER

SECOND STAGE RELAY

OR SEQUENCER

FIRST STAGE RELAY

24V COMMON

FOR WIRING WITH ELECTRIC HEATERS

SEE SCHEMATIC ON HEATER ACCESSORY.

RED 33

CONNECTION WIRING DIAGRAM

INDOOR BLOWER 60 SECOND OFF 

DELAY FOR BOTH HEAT & COOL MODES.

GND
LUG

CRANKCASE

 HEATER

GRN

TEMPERATURE

SWITCH

OPTIONAL CRANKCASE HEATER

BLK

T3

L3

BLK

BLK

CONTACTOR

CONTACTOR

CONTACTOR

1. ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY, LOCAL AND/OR

NATIONAL CODES IN EFFECT AT THE TIME OF INSTALLATION OF THE UNIT.

2. CAUTION : LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING

CONTROLS. WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS
OPERATION. IF ANY OF THE WIRING, AS SUPPLIED WITH THE UNIT, MUST
BE REMOVED, IT MUST BE REPLACED WITH TYPE 105 C. 600 VOLT
WIRE OR EQUIVALENT CLEARLY RENUMBERED FOR IDENTIFICATION.
VERIFY PROPER OPERATION AFTER SERVICING.

3. FACTORY WIRED FOR 230 VOLT THREE-PHASE SUPPLY POWER. FOR 208 VOLT,

MOVE BLACK WIRES FROM THE 230 TO THE 208 VOLT TAP ON THE TRANSFORMER.

4. MOTORS ARE INHERENTLY PROTECTED.

5. SEE UNIT NAMEPLATE FOR MAXIMUM FUSE AND/OR CIRCUIT BREAKER SIZE

AND MINIMUM CIRCUIT AMPACITY.

6. BLOWER MOTOR SPEED CONNECTIONS SHOWN ARE TYPICAL, BUT

MAY VARY BY MODEL AND APPLICATION.  SEE INSTALLATION MANUAL
FOR PROPER SPEED TAP INFORMATION FOR EACH APPLICATION TO OBTAIN
APPROX. 400 CFM/TON IN COOLING.

7. IF ELECTRIC HEAT IS INSTALLED, SELECT A HEATING BLOWER SPEED THAT

DELIVERS SUFFICIENT AIRFLOW TO SUIT THE WATTAGE OF ELECTRIC HEAT
INSTALLED.  SEE TABLE IN INSTALLATION MANUAL.

NOTES:

THIS UNIT IS WIRED

FOR THREE-PHASE POWER.

DO NOT CONNECT TO

A SINGLE-PHASE SUPPLY.

NOTICE

BLU 22

CONTACTOR

COIL

YEL 18

BLU 15

5146413-UWD-B-0915

Summary of Contents for PCE4 Series

Page 1: ...s sories are available to provide electric heat The units are completely assembled on rigid removable base rails All piping refrigerant charge and electrical wiring is factory installed and tested The units require only electric power and duct connections at the point of installation SECTION II SAFETY This is a safety alert symbol When you see this symbol on labels or in manuals be alert to the po...

Page 2: ...posed installation should be based on heat loss heat gain calculations made in accordance with industry recognized proce dures such as the Air Conditioning Contractors of America manual J WARNING Before performing service or maintenance operations on unit turn off main power switch to unit Electrical shock could cause personal injury Improper installation adjustment alteration service or mainte na...

Page 3: ...e unit is near the place of installation Rig the unit by attaching chain or cable slings to the lifting holes provided in the base rails Spreader bars whose length exceeds the largest dimension across the unit MUST be used across the top of the unit Units may be moved or lifted with a forklift Slotted openings in the base rails are provided for this purpose FIGURE 1 Component Location OUTDOOR FAN ...

Page 4: ...7 134 140 74 FIGURE 2 Unit 4 Point Load Weight X CENTER OF GRAVITY FRONT OF UNIT Y D C B A A0295 001 COMPRESSOR TABLE 3 Unit Dimensions Model Dimensions A B C PCE4A36 51 1 4 35 3 4 47 PCE4B48 51 1 4 45 3 4 49 PCE4B60 51 1 4 45 3 4 51 FIGURE 3 Unit Dimensions HIGH VOLTAGE CONNECTION 7 8 HIGH VOLTAGE CONNECTION 1 3 32 COMPRESSOR ACCESS PANEL CONDENSATE DRAIN BLOWER ACCESS PANEL CONTROL ACCESS PANEL ...

Page 5: ...should be checked monthly this is especially important since this unit is used for both heating and cooling TABLE 4 Unit Clearances Direction Distance in Direction Distance in Top1 1 Minimum Clearance of 1inch all sides of supply air duct for the first 3 feet of duct for 20 25 kW zero inches thereafter For all other heaters zero inch clearance all sides for entire length of duct 36 Right Side 36 S...

Page 6: ...ied with the unit must be replaced replacement wire must be of the type shown on the wiring diagram Electrical service must be sized properly to carry the load Each unit must be wired with a separate branch circuit fed directly from the main distribution panel and properly fused Refer to Figures 6 7 for typical field wiring and to the appropriate unit wiring diagram for control circuit and power w...

Page 7: ...HK16502025 S1 2SPWK035 40 N A 6HK16502525 S1 2SPWK035 40 N A Unit Model Number Voltage Heater Kit Single Point Wiring Kit Unit Fuse Size Amps Heater Fuse Size Amps PCE4A36 230 3 60 6HK06501025 S1 2SPWK031 20 30 6HK06501525 S1 2SPWK033 20 45 PCE4A36 230 3 60 6HK06501025 S1 2SPWK031 25 30 6HK06501525 S1 2SPWK032 25 45 PCE4B48 230 3 60 6HK06501025 S1 2SPWK032 35 30 6HK06501525 S1 2SPWK034 35 45 6HK06...

Page 8: ...5 50 40 40 40 45 6HK06501825 13 0 15 9 2 36 1 39 9 52 1 56 8 28 7 28 7 45 1 49 8 60 60 40 40 50 50 6HK16502025 14 4 17 6 2 40 0 44 3 57 0 62 3 28 7 28 7 50 0 55 4 60 70 40 40 6HK16502525 18 0 22 0 2 50 0 55 3 69 5 76 2 28 7 28 7 62 5 69 1 70 80 40 40 NOTES Single source power MCA and MOP requirements are given here only for reference if the unit is to be installed with a field installed single poi...

Page 9: ...1 3 3 8 none 18 1 25 6HK06501025 8 8 1 22 1 18 1 25 27 7 30 6HK06501525 13 2 1 33 2 18 1 25 41 5 45 PCE4B48 13 7 83 1 21 4 1 7 5 4 none 24 2 35 6HK06501025 8 8 1 22 1 24 2 35 27 7 30 6HK06501525 13 2 1 33 2 24 2 35 41 5 45 6HK06501825 15 9 2 39 9 24 2 35 49 8 50 6HK16502025 17 6 2 44 3 24 2 35 27 7 30 27 7 30 PCE4B60 16 0 110 0 24 9 1 7 7 0 none 28 7 40 6HK06501025 8 8 1 22 1 28 7 40 27 7 30 6HK06...

Page 10: ...ced Interlaced Indoor Coil Data Face area Sq Ft 4 6 6 3 6 3 Rows 3 3 3 Fins per inch 16 16 16 Tube diameter 3 8 3 8 3 8 Circuitry Type Interlaced Interlaced Interlaced Refrigerant control TXV TXV TXV Outdoor Fan Data Fan diameter Inch 24 26 26 Type Prop Prop Prop Drive type Direct Direct Direct No speeds 1 1 1 Motor HP each 1 4 1 3 1 3 RPM 850 850 850 Nominal total CFM 2400 4200 4200 Direct Drive ...

Page 11: ...volts Data above may be used in those cases 5 Heating applications tested at 0 50 w c esp and cooling applications tested at 0 30 w c esp per standards CAUTION This system uses R 410A Refrigerant which operates at higher pres sures than R 22 No other refrigerant may be used in this system CAUTION Do not leave the system open to the atmosphere Unit damage could occur due to moisture being absorbed ...

Page 12: ...1318 1275 1232 1146 PCE4B48 Low 1 1598 1548 1502 1454 1410 1362 1307 1251 1139 Low Medium 2 1663 1612 1568 1522 1476 1422 1370 1297 1152 Medium 3 1789 1733 1670 1650 1596 1578 1535 1483 1379 Medium High 4 1931 1814 1808 1736 1673 1650 1597 1519 1362 High 5 2131 2058 1998 1949 1892 1840 1788 1728 1608 PCE4B60 Low 1 1655 1612 1596 1531 1461 1462 1429 1391 1316 Low Medium 2 1766 1720 1667 1629 1632 1...

Page 13: ... to COOL mode and lower the desired tem perature setting lower than the room temperature to create a call for cooling 6 Measure the total system duct static and set the blower motor cool ing speed appropriately per airflow performance tables 7 If an optional electric heat kit was installed make sure the W blower speed is set at or above required speed See Table 12 8 Make sure all units panels are ...

Page 14: ...ten as necessary to keep the coil clean If water is used to clean the coil be sure that the power to the unit is shut off prior to cleaning TROUBLESHOOTING FIGURE 9 Measuring External Static Pressure i 0w 1035 5 7851 5 8 7 6833 5 8 7 0 35 6685 36 1 6 2 7 5 i w 1035 WARNING Prior to any of the following maintenance procedures shut off all power to the unit to avoid personal injury CAUTION Exercise ...

Page 15: ...ATER GRN TEMPERATURE SWITCH OPTIONAL CRANKCASE HEATER BLK T3 L3 BLK BLK CONTACTOR CONTACTOR CONTACTOR 1 ALL FIELD WIRING TO BE ACCOMPLISHED FOLLOWING CITY LOCAL AND OR NATIONAL CODES IN EFFECT AT THE TIME OF INSTALLATION OF THE UNIT 2 CAUTION LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING CONTROLS WIRING ERRORS CAN CAUSE IMPROPER AND DANGEROUS OPERATION IF ANY OF THE WIRING AS SUPPLIED WITH...

Page 16: ... BLU L1 CRANKCASE HEATER GRN BLK BLK TEMPERATURE SWITCH BLK OPTIONAL CRANKCASE HEATER WIRING FEMALE CONNECTOR FOR 6HK HEATER KIT FOR WIRING WITH ELECTRIC HEATERS SEE SCHEMATIC ON HEATER ACCESSORY 1 2 3 4 5 6 1 2 3 4 5 6 L3 T3 L3 BLU WIRING DIAGRAM FOR HEATER KIT 6HK06501825 SEE HEATER WIRING DIAGRAM FOR ALTERNATE HEATER ACCESSORY KITS OPTIONAL ELECTRIC HEATER ACCESSORY L1 L2 L3 HE6 HE5 HE4 HE3 HE2...

Page 17: ... Manifold sets must be at least 700 psig high side and 180 psig low side with 550 psig retard All hoses must have a service pressure rating of 800 psig Leak detectors must be designed to detect HFC refrigerants Systems must be charged with liquid refrigerant Use a commercial type metering device in the manifold hose R 410A can only be used with POE type oils POE type oils rapidly absorb moisture f...

Page 18: ...5538117 UIM B 0319 18 Johnson Controls Ducted Systems NOTES ...

Page 19: ... compressor 208 volts AC 230 volt AC 460 volts AC 575 volts AC Anti recycle timer Measured voltage L1 to L2 L2 to L3 L1 to L3 Total amperes L1 L2 L3 Compressor amperes L1 L2 L3 Measured voltage R and C outdoor unit control board Air Flow Setup Cooling Supply static inches of water column Supply air dry bulb temperature Return air dry bulb temperature Temperature drop A B C D Blower Type Set Up Out...

Page 20: ... replacement and equipment maintenance Clean Up Job Site Owner Education Comments and Additional Job Details Provide owner with the owner s manual Explain thermostat use and programming if applicable to owner Unit Operation and Cycle Test Operate the unit through continuous fan cycles from the thermostat noting and correcting any problems Operate the unit through cooling cycles from the thermostat...

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