If the refrigerant lines utilize extended lengths, add 4 psi to the liquid pressure val-
ues shown in the chart.
1.
Remove refrigerant charge if the refrigerant liquid pressure is above the cor-
rected chart value.
2.
Add refrigerant charge if the liquid pressure is below the corrected chart value.
13.2 CHARGING BY WEIGHT
For a new installation, evacuation of interconnecting tubing and evaporator coil is
adequate; otherwise, evacuate the entire system. Use the factory charge shown in
Table 1 of these instructions or unit data plate. Note that charge value includes
charge required for 15 ft. of standard size interconnecting liquid line. Calculate actu-
al charge required with installed liquid line size and length using:
1/4” O.D. = 0.2 oz./ft.
5/16” O.D. = 0.3 oz./ft.
3/8” O.D. = 0.5 oz./ft.
1/2” O.D. = 1.0 oz./ft.
With an accurate scale (+/– 1 oz.) or volumetric charging device, adjust charge dif-
ference between that shown on the unit data plate and that calculated for the new
system installation. If the entire system has been evacuated, add the total calculat-
ed charge.
NOTE:
When the total refrigerant charge volume exceeds the values in Table 7, the
manufacturer recommends installing a crankcase heater and start kit.
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.
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 at Copeland
Nameplate Voltage
Maximum Load Design Conditions for
Compressors
208/230 (1 Phase)
187 - 253
