Champion U-H1, Technical Manual, Page: 22 / 64

BASIC SERVICE
This Basic Service section does not cover all possible repair procedures. If you require
additional service support, you may call:
Champion National Service
1-800-858-4477
Please have the Model and Serial Number of the machine ready when you call.
Electrical Service
NOTE:
DO NOT USE CHASSIS GROUND WHEN PERFORMING VOLTAGE CHECKS.
Doing so will result in false and inaccurate readings.
PERFORM VOLTAGE CHECKS BY READING FROM THE HOT SIDE OF THE
LINE AND ANY #2 WIRE or white wire.
WARNING:
USE EXTREME CAUTION when performing tests on energized circuits.
WARNING:
When repairing a circuit, disconnect the power at the main service disconnect switch and
place a tag at the disconnect switch to indicate that work is being performed on the circuit.
Motor Connections
Model U-H1 and U-HB use a 208-240V/60Hz/1Ph capacitor start pump motor.
Model U-LD uses a 115V/60Hz/1Ph capacitor start pump motor.
Refer to Fig.4 for the proper wiring of the pump motor and capacitor.
U-H1/U-HB U-LD
Timed Fill/Low Water Tank heat Protection
Models U-H1, U-HB use a float switch and fill timer to control tank fill and tank heat.
Model U-HB built-in booster heater is also controlled by the float switch.
Operation:
1. When power switch is turned on, fill timer runs for a minimum of
90 seconds to fill the tank.
2. Float switch ball rises and allows tank heat and booster heat to energize.
3. If water level drops too low, float switch ball moves down; heat de-energizes and the
fill timer runs for a minimum of 90 seconds to refill the tank.
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BASIC SERVICE
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Figure 4
Pump Motor Wiring Diagrams