Vanguard Heating POWERMAX PM200 - Manual (Page 11)

9
ELECTRICAL
The electrical power supply requirement for the booster heater is 120 volts, AC, 60Hz, 6.0
amps or less. Field wiring connections and electrical grounding must comply with local
codes, or, in the absence of local codes, with the latest edition of the National Electric
Code (NEC), ANSI/NFPA 70. NOTE: Polarity must be observed for the booster heater to
operate properly. Consult wiring diagram. Provide a separate fused circuit from the main
electrical panel to the booster heater and a means of disconnecting within sight of the
heater. Electrical connection is made from the bottom left front of the unit and into the
2”X4” field wiring connection box. All internal electrical components are factory wired and
operate with the heater control system. NOTE: If it is necessary to replace any of the
original wiring, it must be replaced with 105 degree centigrade rated wire or its equivalent.
CAUTION: DO NOT TURN THE POWER SWITCH ON UNTIL THE BOOSTER
HEATER HAS BEEN FILLED WITH WATER AND ALL AIR HAS BEEN PURGED
FROM HEAT EXCHANGER AND THE ACCUMULATOR TANK.
If an auxiliary power vent is installed, or in certain cases, if the booster heater is vented
through the dishwasher exhaust system, an airflow-proving switch must be installed in the
duct system to interrupt power to the booster heater and prevent its operation without
sufficient draft. The airflow-proving switch is provided by others.
If the optional circulation kit (for remote booster installation) is used, it is wired separately
from the booster heater through the provided lighted switch box.
CAUTION: Label all wires prior to disconnection when servicing controls. Wiring errors
can cause improper and dangerous operation. Verify proper operation after servicing.