Carrier 52C - Manual (Page 4)

4
ELECTRICAL DATA
Be sure that your outlet matches the appropriate
blade configuration of the supplied plug and that it is
within reach of the service cord. A hardwire kit is
available as an accessory to change cord-connected
units to hardwired units. (See Accessories table on
page 15.)
ALL UNITS
■ WIRE SIZE — Use recommended wire size given in
Table 1 and install a single branch circuit. All wiring
must comply with local and national codes. All units
are designed to operate off single branch cir-
cuits only.
NOTE: Use copper conductors only.
■ GROUNDING — For safety and protection, the
unit is grounded through the service cord plug or
through separate ground wire provided on hardwired
units. Be sure that the branch circuit or general pur-
pose outlet is grounded.
TABLE 1 — SUGGESTED BRANCH CIRCUIT
WIRE SIZES*
LEGEND
AWG — American Wire Gage
*Single circuit from main box.
†Based on copper wire at 60 C temperature rating.
VOLTAGE SUPPLY
Check voltage supply at outlet. For satisfactory
results, the voltage range must always be within the
ranges found on the data information plate
(shown in Figure 1).
■ CORD-CONNECTED UNITS — The 250-v field-
supplied outlet must match the plug for the standard
208/230-v units and be within reach of the service
cord. The standard cord-connected 265-v units require
an accessory electrical subbase for operation. See
Accessories table, page 15, for subbase selection. Refer
to Table 2 for proper receptacle and fuse type.
■ POWER CORD PROTECTION — The power cord
for the 230/208-v unit provides both personal shock
protection and power cord fire prevention. Unit power
automatically disconnects when unsafe conditions are
detected. Power to the unit can be restored by pressing
the RESET button on plug head.
Upon completion of unit installation for 230/208-v
models, an operational check should be performed
using the TEST/RESET buttons on the plug head. See
Figure 5.
NOTE: The 265-v models do not incorporate this
feature as they require use of the electrical subbase
accessory.
TABLE 2 — RECEPTACLES AND FUSE TYPES — 250,265 VOLTS
LEGEND
HACR — Heating, Air Conditioning, Refrigeration
*May be used for 15-amp applications if fused for 15 amp.
ELECTRICAL SHOCK HAZARD
DO NOT alter cord or plug, and DO NOT use an
extension cord. Personal injury or damage to the
unit may result.
IMPORTANT: All standard cord-connected 265-v
units will require a field-installed electrical sub-
base accessory.
NAMEPLATE AMPS AWG WIRE SIZE†
7.0 to 12 14
12.1 to 16 12
16.1 to 24 10
RECEPTACLE
15 Amps 20 Amps 30 Amps 15 Amps 20 Amps 30 Amps
RATED VOLTS 250 250 250 265 265 265
TIME-DELAY TYPE
FUSE (or HACR Circuit Breaker)
15 20* 30 15 20 30