Carrier 40QA024-060 specifications System Matches, Application Range, Cooling

Table 1 — System Matches

SYSTEM TYPE	INDOOR SECTION NUMBER	OUTDOOR SECTION NUMBER
	40QAC	38HDR-3,5,6
	024*	018
	024	024
Cooling Only	036	030
	036	036
	048	048
	060	060
	40QAQ	38QRR-3,5,6
	024*	018
	024	024
Heat Pumps	036	030
	036	036
	048	048
	060	060
	40QAQ	38HDR-3,5,6
	024*	018
	024	024
Heating/Cooling	036	030
	036	036
	048	048
	060	060

*Units must be field reconfigured for 11/2 ton (18,000 Btuh) operation. See Before Installation sec- tion on page 3 for details.

NOTE: Numbers in ( ) indicate quantities when there is more than one fan coil unit in the system.

Ensure unit operation within the application guidelines shown in Table 2. When installing the outdoor unit, for cooling operation when the outdoor-air temperature is below 55 F, the following accessories are required:

•low ambient kit

•crankcase heater

•winter start kit

•isolation relay (38QRR heat pump units only)

This will provide cooling operation down to 40 F ambient temperature. For operation down to –20 F ambient tempera- ture, a field-installed wind baffle will also be required.

To complete installation of the system, the following items must be field-supplied for connection of the indoor and outdoor units:

•refrigerant piping

•condensate drain piping

•thermostat

•power and control wiring

For some applications, a fresh air intake, power vent fan, and/or condensate pump kit may be required.

Table 2 — Application Range

COOLING

Maximum			Minimum
Indoor		Outdoor	Indoor	Outdoor
95 F DB		125 F DB	67 F DB	55 F DB*
71 F WB			57 F WB	40 F DB
	HEATING (Heat Pump Systems Only)
Maximum			Minimum
Indoor		Outdoor	Indoor	Outdoor
80 F DB		75 F DB	55 F DB	–20 F DB
71 F WB		65 F WB

LEGEND

DB — Dry Bulb

WB — Wet Bulb

*This value is for single-zone systems and may be equipped with an accessory low-ambient control or winter start kit that will allow operation down to –20 F.

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