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Application data
OUTDOOR-AIR TEMPERATURE OPERATING LIMITS (F)
Field splitting instructions — If components are split,
maximum length of refrigerant tubing to be used is 50 ft,
assuming components are installed in same horizontal
plane. Condenser may be mounted up to 12 ft above evap-
orator. Liquid line tubing is
3
/
8
-in. OD copper tubing, and
discharge line is
1
/
2
-in. OD copper tubing. For additional
piping information, refer to Carrier System Design Man-
ual, Part 3. Units should always be within line of sight from
each other, or separate NEC (National Electrical Code)
disconnects will be required. Junction boxes should be
installed in both the evaporator and condenser sections
adjacent to D-shaped grommets, to provide a location to
splice the outdoor-fan motor factory wiring (no. 16 AWG
[American Wire Gage],
4
/
64
-in. thick insulation). Field wir-
ing should be a minimum of no. 16 AWG,
4
/
64
-in. thick
insulation. Check all applicable electrical codes to ensure
proper compliance.
UNIT 50AH 024 036 048 060
Without Head Pressure Control Minimum 35 35 40 40
Maximum 126 126 126 126
With Head Pressure Control Minimum 0000
Maximum 126 126 126 126
Typical piping and wiring
LEGEND
NEC — National Electrical Code
NOTES:
1. Wiring and piping shown are not intended for or to include all
details for specific installation.
2. All wiring must comply with applicable local and national codes.
3. All piping must follow standard refrigerant piping techniques. Refer
to Carrier System Design Manual, Part 3, for details.
4. For other installation details refer to Installation Instructions.
5. If unit sections are field split, 8 threaded support rods are required.
6. Ensure condenser air recirculation is minimized.