TYPICAL INSTALLATION
| MINIMUM 24” SERVICE |
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48” OVERHEAD | ACCESS CLEARANCE | THERMOSTAT | |
ON ONE SIDE | |||
CLEARANCE |
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| WEATHERPROOF |
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| DISCONNECT |
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| SWITCH |
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| NEC CLASS 1 WIRING | |
10” CLEARANCE |
| TO FURNACE OR | |
AROUND PERIMETER |
| AIR HANDLER | |
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| TERMINAL BLOCK | |
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| NEC CLASS 2 WIRING | |
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| TO INDOOR COIL | |
NOTE: |
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ALL OUTDOOR WIRING | CONTROL |
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MUST BE WEATHERPROOF. | ACCESS | SEAL OPENING(S) WITH | |
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| PANEL | PERMAGUM OR EQUIVALENT | |
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TYPICAL FIELD WIRING
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
THERMOSTAT
R
B or C
Y
O
W
L or X
G |
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| 1 FIELD | |
2 | ||
T | INSTALLED | |
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2 | JUMPER | |
E | ||
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1 JUMPER TERMINALS E AND W TO HEAT
ON FIRST STAGE DURING EMERGENCY HEAT.
INDOOR UNIT
LOW VOLTAGE TERMINAL BLOCK 3,4 IN AIR HANDLER WITH ELECTRIC HEAT
R
C
Y
O
W2
G
W1
BK 
DEHUMIDIFICATION CONTROL CONNECTION (Humidistat* Jumper must be removed)
OUTDOOR UNIT
DEFROST
CONTROL
RED | R |
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| CONTACTOR | ||
BLK |
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C |
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YEL | Y | T2 | T1 |
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ORG | O |
| M |
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BRN | W | L2 | L1 |
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PUR | X/L |
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WHT W1/66 |
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5GRY CC |
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GND.
SCREW
2 TERMINAL NOT USED ON ALL THERMOSTATS.
POWER WIRING
24V CONTROL WIRING (NEC CLASS 2)
GND.
LUG
CIRCUIT BREAKER***
POWER WIRING
3CHECK THE LOW VOLTAGE TERMINAL BLOCK ON THE INDOOR UNIT FOR THE ACTUAL ARRANGEMENT OF THE TERMINALS.
4CONNECT POWER WIRING TO TERMINAL BLOCK 3TB ON UNITS WITHOUT ELECTRIC HEAT OR CIRCUIT BREAKER. 5GRAY FOR USE WITH OPTIONAL OUTDOOR THERMOSTAT KITS.
Johnson Controls Unitary Products | 19 |