FIELD CONNECTIONS CONTROL WIRING
1.Route low voltage wiring into bottom of control box as shown in Figure 6. Make low voltage wiring connections inside the low volt- age box per Figures 7 - 11.
2.The complete connection diagram and schematic wiring label is located on the inside surface of the unit service access panel.
3.Replace the corner cover removed in Step 2.
4.All field wiring to be in accordance with national electrical codes (NEC) and/or
NOTE: A Start Assist Kit is available and recommended for long line set applications or in areas of known low voltage problems.
5.Mount the thermostat about 5 ft. above the floor, where it will be exposed to normal room air circulation. Do not place it on an out- side wall or where it is exposed to the radiant effect from exposed glass or appliances, drafts from outside doors or supply air grilles.
6.Route the
NOTICE
To eliminate erratic operation, seal the hole in the wall at the ther- mostat with permagum or equivalent to prevent air drafts affecting the operation of in the thermostat.
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
POWER WIRING
24 VOLT CONTROL WIRING MINIMUM 18 GA. WIRE (NEC CLASS 2)
*TERMINAL W IS ONLY REQUIRED ON SYSTEMS
WITH HEAT.
CONTACTOR
TERMINALS
POWER WIRING
CONTROL WIRING
FACTORY WIRING
FURNACE OR AIR HANDLER TERMINAL BLOCK
C Y R G W
GND. | COIL |
| * | |
LUG | Y | R G W | ||
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CONDENSING UNIT | ROOM THERMOSTAT | ||
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| ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY. |
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FIGURE 8: Typical Field Wiring (Air Handler / Electrical Heat)
ALL FIELD WIRING TO BE IN ACCORDANCE WITH ELECTRIC CODE (NEC) AND/OR LOCAL CODES
GND.
LUG
POWER WIRING
CONTACTOR TERMINALS
COIL
24 VOLT CONTROL WIRING MINIMUM 18 GA. WIRE (NEC CLASS 2)
*TERMINAL W IS ONLY REQUIRED ON SYSTEMS WITH HEAT.
POWER WIRING
CONTROL WIRING
FACTORY WIRING
FURNACE OR AIR HANDLER TERMINAL BLOCK
C Y R G W
YR G W *
CONDENSING UNIT
ROOM THERMOSTAT
ALL OUTDOOR WIRING MUST BE WEATHERPROOF. USE COPPER CONDUCTORS ONLY.
FIGURE 9: Typical Field Wiring (Air Handler / Electrical Heat)
8 | Johnson Controls Unitary Products |
