TYPICAL WIRING DIAGRAM NOTES
(SEE FIGURE 14)
1.All field wiring to be accomplished following city, local and/or national codes in effect at time of installation of this unit.
2.Caution: Label all wires prior to disconnection when ser- vicing controls. Wiring errors can cause improper and dangerous operation. If any of the wire as supplied with this unit must be removed it must be replaced with type 105°C, 600V wire or equivalent clearly renumbered for identification. Verify proper operation after servicing.
3.Motors inherently protected.
4.Factory wired for 230V. For 208V operation, move wire 107/PR to 208V. Tap on transformer T1
5.See unit nameplate for maximum fuse size and/or circuit breaker size and minimum circuit ampacity.
6.If both LR and ASCT are present, wire 801/BL and 805/ BL are connected to
7.Shunt contact also used with crankcase heater. (optional)
8.Select indoor blower speed to remain within the temper- ature rise range on the nameplate in heating.
Open all disconnects before servicing this unit.
| LEGEND |
ALS | AUXILARY LIMIT SWITCH |
ASCT | |
BR | BLOWER RELAY |
CB | CIRCUIT BREAKER |
CCH | CRANK CASE HEATER (OPTIONAL) |
COMPR | COMPRESSOR |
DM | DRAFT MOTOR |
FCB | FAN CONTROL BOARD |
GND | GROUND |
FS | FREEZE STAT SWITCH (OPTIONAL) |
HP | HIGH PRESSURE SWITCH OPENS @ 380 PSIG |
IDFAN | INDOOR FAN MOTOR |
LP | LOW PRESSURE SWITCH OPENS @ 7 PSIG |
LS | LIMIT SWITCH |
LR | LOCK OUT RELAY (OPTIONAL) |
M1 | CONTACTOR, COMPR. AND OD FAN |
ODFAN | OUTDOOR FAN MOTOR |
PS | PRESSURE SWITCH |
RC1 / RC2 | COMPRESSOR START & OUTDOOR FAN RUN CAPACITOR |
RS | ROLLOUT SWITCH |
TB4 | TERMINAL BLOCK |
T1 | TRANSFORMER, 24V, 230V |
FIGURE 15 - TYPICAL WIRING DIAGRAM LEGEND
Johnson Controls Unitary Products | 23 |
