Carrier 40RMQ008-028 Cover Removed Typical, Wiring and Service Access, Side Panel Removed

Power Supply and Wiring — Check the unit data plate to ensure that available power supply matches electrical characteristics of the unit. Provide a disconnect switch of size required to provide adequate fan motor starting current. See Tables 4-6 for unit electrical data.

Install disconnect switch and power wiring in accordance with all applicable local codes. See Fig. 15-17 and the unit label diagram. For units with motor sizes less than 5 Hp (3.7 kW), connect power wiring to unit with no. 10 ring termi- nal. For units with motor sizes of 5 Hp (3.7 kW) or more, con- nect power wiring with 1/4-in. ring terminal.

The 40RM, 40RMQ and 40RMS size 007-016 units (except 40RM016 with YC or WD option) that have motors wired for

460-v, 3-ph, 60 Hz operation can be field-converted to 208/230-v, 3-ph, 60 Hz operation. Rewire the motor according to the diagram plate on the motor. After reconfiguring the mo- tor, mark the motor specifying 208-v or 230-v operation replac- ing the 460-v sticker information on the units’ corner post.

Fan motors are factory-installed on all units. Indoor-fan contactors are located in the fan contactor box behind the side access panel (see Fig. 15 and 16). Wire the thermostat to the 24-v control circuit terminal block located in the side of the fan contactor control box, according to Fig. 17 or the unit label diagram. If the air handler is part of a split system, complete the wiring from the condensing unit to the thermostat shown in Fig. 17.

FAN SCROLL	FAN
	CONTACTOR
	BOX
MOTOR	WIRE
AND DRIVE
	ACCESS
				A
				J
				R
				V
	FAN DRIVE			00
				°5C
CONDENSATE				6
	PULLEY			10
DRAIN
CONNECTION
(HORIZONTAL)			23	22	12
	COIL		W
FILTER	TXV BULB	FAN
ELEMENTS
	ACCESS	CONTACTOR
			31	21	11
	REFRIGERANT/	24V
	CHILLED WATER
		TERMINAL
	PIPING ACCESS
FILTER		BLOCK
RETAINER	CONDENSATE	POWER
CLIP
	DRAIN	WIRING
	CONNNECTION	KNOCKOUT
	(VERTICAL)
LEGEND		Fig. 16 — Fan Contactor Box and Terminal Block
TXV — Thermostatic Expansion Valve			(Cover Removed) (Typical)

Fig. 15 — Wiring and Service Access

(Side Panel Removed)

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