340968-XIM-A-0108

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 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 M1 coil as shown.

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

ANTI-SHORT CYCLE TIMER (OPTIONAL)

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

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Johnson Controls 340968-XIM-A-0108 installation manual Typical Wiring Diagram Notes, See Figure

340968-XIM-A-0108 specifications

Johnson Controls 340968-XIM-A-0108 is a sophisticated component designed for advanced building management and automation systems. This device is engineered to enhance the performance and efficiency of HVAC (Heating, Ventilation, and Air Conditioning) systems, contributing significantly to energy conservation and optimal climate control in commercial and industrial environments.

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