Carrier 40QA024-060 specifications Electrical Data

Step 6 — Make Electrical Connections — Be sure field wiring complies with local building codes and NEC, and unit voltage is within limits shown in Table 5.

Contact local power company for correction of improper line voltage.

To avoid personal injury or damage to unit, do not make electrical connections until all power sources are shut down, locked out, and tagged off. Failure to do so could result in personal injury or unit damage.

Operation of unit on improper line voltage constitutes abuse and could affect warranty. Refer to Table 5 for permissible operating limits. Do not install unit in system where voltage may fluctuate above or below permissible limits.

NOTE: Use copper wire only between disconnect switch(es) and unit.

NOTE: Install branch circuit disconnect of adequate size to handle unit starting current per NEC. Locate disconnect within sight of, and readily accessible from, unit, per Section 440-14 of NEC. Some codes allow indoor unit to share disconnect with

outdoor unit if disconnect can be locked; check local code before installing in this manner.

1. Route ground and power wires.

According to NEC and most local codes, the unit must have an uninterrupted, unbroken ground to minimize personal injury if an electric fault should occur. The ground may consist of electrical wire or metal conduit when installed in accordance with existing electrical codes. Failure to follow this warning could result in an electric shock, fire, or death.

2.Route line power leads (see Fig. 16) from indoor dis- connect to the fan coil unit. Place wire through hole on the control box (Fig. 17). Connect wire to high voltage terminal board (TB1) and ground screw. When routing the wire in the unit, use care to keep the wire away from refrigerant and condensate piping and any sharp edges. The 208/230-v units are factory wired for 230-v to 24-v transformer operation. For 208-v to 24-v operation, interchange blue (208-v) and red (230-v) wires. Cap any unused wires with wire nuts.

Table 5 — Electrical Data*

SYSTEM	UNIT	FAN		HEATER			POWER		MIN WIRE SIZE
TYPE	SIZE	Motor 1 FLA	Motor 2 FLA	kW	FLA	MCA	MOCP	FLA	(AWG)
	024†	0.5	—	—	—	0.53	15	0.50	14
COOLING	036	1.3	—	—	—	1.60	15	1.30	14
ONLY	048	1.1	0.5	—	—	2.00	15	1.60	14
	060	1.3	1.3	—	—	3.30	15	2.60	14
	024†	0.5	—	2.00	8.66	9.29	15	9.16	14
HEAT PUMP	036	1.3	—	3.00	13.00	17.70	20	14.30	14
	048	1.0	0.5	4.00	17.40	23.80	25	19.00	12
	060	1.3	1.3	5.00	21.70	28.70	30	24.30	10

	LEGEND
AWG	— American Wire Gage
FLA	— Full Load Amps
MCA	— Minimum Circuit Amps per NEC Section 430-24
MOCP	— Maximum Overcurrent Protection
NEC	— National Electrical Code

*All units are 208/230-1-60. Minimum operating voltage is 187, max- imum is 253. Units will operate satisfactorily within this voltage range.

†Electrical data is the same for both the 24,000 Btuh 024 unit and the 024 unit that has been field-reconfigured for 18,000 Btuh. Refer to Before Installation section on page 3 for reconfiguration details.

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