Carrier R-410A manual Fire Hazard, Electrical Shock Hazard

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 with an integrated lock-out feature of size required to provide adequate fan motor starting current. See Tables 4-6 for unit electrical data.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Do not use gas piping as an electrical ground. Unit cabinet must have an uninterrupted, unbroken electrical ground to minimize the possibility of personal injury if an electrical fault should occur. This ground may consist of electrical wire connected to unit ground lug in control compartment, or conduit approved for electrical ground when installed in accordance with NEC (National Electrical Code); ANSI/ NFPA 70, latest edition (in Canada, Canadian Electrical Code CSA [Canadian Standards Association] C22.1), and local electrical codes.

FIRE HAZARD

Failure to follow this warning could result in intermittent operation or performance satisfaction.

Do not connect aluminum wire between disconnect switch and condensing unit. Use only copper wire.

(See Fig. 14)

ELECTRIC

DISCONNECT

SWITCH

COPPER

WIRE ONLY

FAN SCROLL	FAN
	CONTACTOR
	BOX
MOTOR	WIRE
AND DRIVE
	ACCESS
CONDENSATE	FAN DRIVE
	PULLEY
DRAIN
CONNECTION
(HORIZONTAL)
	COIL
FILTER	TXV BULB
ELEMENTS
	ACCESS
	REFRIGERANT
FILTER	PIPING ACCESS
RETAINER	CONDENSATE
CLIP
	DRAIN
	CONNNECTION
	(VERTICAL)

LEGEND

TXV — Thermostatic Expansion Valve

Fig. 15 — Wiring and Service Access

(Side Panel Removed)

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.

ALUMINUM

WIRE

Fig. 14 — Disconnect Switch and Unit

Install disconnect switch and power wiring in accordance with all applicable local codes. See Fig. 15-17 and the unit label diagram. Connect power wiring with 1/4-in. ring terminal.

FAN CONTACTOR

24V TERMINAL BLOCK

POWER

WIRING KNOCKOUT

A

J R

V 00 6

C ° 5 0 1

23 22 21

W

31 21 11

Fig. 16 — Fan Contactor Box and Terminal Block

(Cover Removed) (Typical)

17