Specifications

13.3 FINAL LEAK TESTING
After the unit has been properly evacuated and charged, a halogen leak detector
should be used to detect leaks in the system. All piping within the condensing unit,
evaporator, and interconnecting tubing should be checked for leaks. If a leak is
detected, the refrigerant should be recovered before repairing the leak. The Clean
Air Act prohibits releasing refrigerant into the atmosphere.
14.0 ELECTRICAL WIRING
Field wiring must comply with the National Electric Code (C.E.C. in Canada) and
any applicable local code.
14.1 GROUNDING
A grounding lug is provided near the contactor for a ground wire.
14.2 POWER WIRING
It is important that proper electrical power from a commercial utility is available at
the condensing unit contactor. Voltage ranges for operation are shown in Table 5.
Power wiring must be run in a rain-tight conduit. Conduit must be run through the
connector panel below the access cover (See Figure 1) and attached to the bottom
of the control box.
Connect power wiring to contactor located in outdoor condensing unit electrical box.
(See wiring diagram attached to unit access panel.)
Check all electrical connections, including factory wiring within the unit and make
sure all connections are tight.
DO NOT connect aluminum field wire to the contactor terminals.
14.3 CONTROL WIRING
(See Figure 2)
If the low voltage control wiring is run in conduit with the power supply, Class I insu-
lation is required. Class II insulation is required if run separate. Low voltage wiring
may be run through the insulated bushing provided in the 7/8 hole in the base
panel, up to and attached to the pigtails from the bottom of the control box. Conduit
can be run to the base panel if desired by removing the insulated bushing.
A thermostat and a 24 volt, 40 VA minimum transformer are required for the control
circuit of the condensing unit. The furnace or the air handler transformer may be
used if sufficient. See the wiring diagram for reference. Use 18-gauge thermostat
wire only.
16
!
WARNING
TURN OFF ELECTRIC POWER AT
THE FUSE BOX OR SERVICE
PANEL BEFORE MAKING ANY
ELECTRICAL CONNECTIONS.
ALSO, THE GROUND CONNEC-
TION MUST BE COMPLETED
BEFORE MAKING LINE VOLTAGE
CONNECTIONS. FAILURE TO DO
SO CAN RESULT IN ELECTRICAL
SHOCK, SEVERE PERSONAL
INJURY OR DEATH.
!
WARNING
THE UNIT MUST BE PERMANENTLY GROUNDED. FAILURE TO DO SO
CAN CAUSE ELECTRICAL SHOCK RESULTING IN SEVERE PERSONAL
INJURY OR DEATH.
TABLE 5
VOLTAGE RANGES (60 HZ)
Operating Voltage Range
Nameplate Voltage Maximum Load Design Conditions for
Compressors
208/230 (1 & 3 Phase) 187 - 253
460 (3 Phase) 414 - 506
575 (3 Phase) 517 - 633