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TYPICAL WIRING DIAGRAM NOTES
(SEE FIGURES 18 THRU 31)
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 460 Volt operation.
5.
See unit nameplate for maximum fuse size and/or circuit
breaker size and minimum circuit ampacity.
ALS
ASCT
CB
CCH
COMPR
DM
EMCB
GND
FS
HP
IDFAN
LP
LS
LR
M1
ODFAN
PS
RC1 / RC2
RS
TB1
T1
T2
FIGURE 32 - TYPICAL WIRING DIAGRAM LEGEND
Johnson Controls Unitary Products
6.
If both LR and ASCT are present, wire 801/BL and 805/
BL are connected to ASCT-3. If only LR is present wire
801/BL and 805/BL are connected to M1 coil. If only
ASCT is present wire 202/Y is connected to ASCT-3. If
neither LR or ASCT are present, wire 202/Y is connected
to M1coil as shown.
7.
Removed.
8.
Select indoor blower speed to remain within the temper-
ature rise range on the nameplate in heating and to
obtain approximately 400 CFM / TON in cooling.
Open all disconnects before servicing this unit.
LEGEND
AUXILARY LIMIT SWITCH
ANTI-SHORT CYCLE TIMER (OPTIONAL)
CIRCUIT BREAKER
CRANK CASE HEATER (OPTIONAL)
COMPRESSOR
DRAFT MOTOR
ELEC, MOTOR CONTROL BOARD
GROUND
FREEZE STAT SWITCH (OPTIONAL)
HIGH PRESSURE SWITCH OPENS @ 625 PSIG (R410A) / 380
PSIG (R22)
INDOOR FAN MOTOR
LOW PRESSURE SWITCH OPENS @ 7 PSIG
LIMIT SWITCH
LOCK OUT RELAY (OPTIONAL)
CONTACTOR, COMPR. AND OD FAN
OUTDOOR FAN MOTOR
PRESSURE SWITCH
COMPRESSOR START & OUTDOOR FAN RUN CAPACITOR
ROLLOUT SWITCH
TERMINAL BLOCK
TRANSFORMER, 24V, 240V
TRANSFORMER, 240V, 460V
284720-BIM-D-0909
37
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