Manual 2100-354
Page
15
FIGURE 9
LOW VOLTAGE WIRING
WIRING – MAIN POWER
Refer to the unit rating plate for wire sizing information
and maximum fuse size. Each outdoor unit is marked with
a “Minimum Circuit Ampacity”. This means that the field
wiring used must be sized to carry that amount of current.
If field installed heaters are added to the basic unit, a
second separate power supply circuit will be required. The
heater rating plate located adjacent to the basic unit rating
plate will show the appropriate circuit ampacity fuse size,
etc. (Also see “Electrical Data” on pages 3, 4 and 5.) All
models are suitable for connection with copper wire only.
These instructions must be adhered to. Refer to the
National Electrical Code for complete current carrying
capacity data on the various insulation grades of wiring
material.
The unit rating plate lists a “Maximum Time Delay Fuse”
or “HACR” type circuit breaker that is to be used with the
equipment. The correct size must be used for proper
circuit protection and also to assure that there will be no
nuisance tripping due to the momentary high starting
current of the compressor.
WIRING – 24V LOW VOLTAGE CONTROL
CIRCUIT
Ten (10 ) wires should be run from thermostat subbase to
the 24V terminal board in the unit. A nine conductor,
18 gauge copper, color-coded thermostat cable is
recommended. The connection points are shown in
Figure 9.
MIS-1187A
