Service Hints - Compu-aire CELHP Installation, Operation, Maintenance And Parts Manual

Refer to the unit rating plate for wire sizing information and maximum fuse or "HACR Type"
circuit breaker size. Each outdoor unit is marked with a "Minimum Circuit Ampacityw. This means
that the field wiring used must
installed of electric heat, there may
case, the unit serial plate will so indicate.
copper wire. Each unit and/or wiring diagram w i 11
BE
adhered t o .
instructions MUST
current carrying capacity data on the various insulation grades of wiring material.
must conform to NEC and all local codes.
The electrical data lists fuse and wire sizes (75OC copper) for all models, including the most
various models with heaters.
The unit rating plate ists a "Maximum Time Delay Relay Fuse" or "HACR Type" circuit breaker that
is to be used with the equipment. The correct size must
and also to assure that there will
current of the compressor motor.

SERVICE HINTS

1. Caution homeowner to maintain clean air filters at all times. Also, not to needlessly
close off supply and return air registers. This reduces air flow through the system,
which shortens equipnent service life as well as increasing operating costs.
2 . Switching to heating cycle at 75OF or higher outside temperature may cause a nuisance
trip of the remote reset high pressure switch. Turn thermostat off, then on the reset
the high pressure switch.
3 .
The heat pomp wall thermostats perform multiple functions.
switches are correctly set for the desired operating mode before trying to diagnose any
reported service problems.
4.
Check all power fuses or circuit breakers to be sure they are the correct rating.
5 .
Periodic cleaning of the outdoor coil to permit full and unrestricted airflow
circulation is essential.
sized to carry that amount of current. Depending on the
be
two field power circuits required. If this is the
be
All
be marked "Use Copper Conductors On1 y". These
Refer to the National Electrical Code (NEC) for complete
be used for proper circuit protection
be no nuisance tripping due to the momentary high starting
All
wiring
Be
sure that all function