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All installations and services must be performed by qualified service personnel.
J. Electrical Wiring
: This appliance must be grounded in accordance with local
codes, or in the absence of local codes, with the National Electrical Code,
ANSI/NFPA 70-1999, or the latest edition.
: Waterproof type connectors must be used when connecting
electrical power and control wiring to the unit to prevent moisture from
being drawn into the unit during operation.
All wiring must conform to the provisions of local codes or, in the absence of local
codes, with the provisions of the National Electrical Code, ANSI/NFPA 70-1999,
or the latest edition, and this instruction manual.
This appliance requires 208-240 VAC, 60 Hz, single-phase power. Refer to Table
5 for typical electrical current draws of the individual appliance motors,
recommended sizes for over-current and short circuit devices, and minimum
recommended field wiring sizes. Electrical service must be brought to the unit
from a circuit breaker, or fused disconnect switch, in accordance with local
codes. The disconnecting switch must be located reasonably close to and within
sight of the unit.
Three-wire service, two “hot” leads (L1 and L2) and a neutral (N), plus a ground
conductor, is required. Connect power to the appliance control system at the
junction box in the burner compartment. (A knockout fitting is provided on the
exterior of the burner compartment for this purpose.) A ground wire must be
connected to the grounding lug, or screw, marked “Equipment Ground”, in the
junction box.
Field wiring of power circuits to the appliance should consist of copper
conductors rated for at least 240 VAC with an insulation temperature rating of at
least 75°C temperature rise. Depending upon code requirements, rigid or flexible
conduit is recommended, and may be required. Connect the electric power
supply as shown in the wiring diagram located on the inside of the burner
compartment cover, or in this manual. The cooling system operates on 208-240
VAC electric power, from supply wires L1 and L2. The heating system operates
on 120 VAC electric power, from supply wires L1 and N.
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