User Manual
ManualsBrandsHubbell ManualsCommercial Dish Washing EquipmentBooster Heater Electric, 10.5 kW with 16-Gallon Storage Capacity, ASME Stamped Stainless Steel Tank with CFC/HCFC Free Closed Cell Foam insulation, Electronic Display Controller with Low Water Cut-Off and Leak Detection, Stainless Steel Exterior, Pressure
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SECTION V – SERVICING AND REPLACEMENT OF PARTS
WARNING / CAUTION
Before servicing or replacing any part, m
ake sure to turn the power supply to the unit OFF.
HEATING ELEMENT
1. Disconnect power from unit.
2. Shut off incom
i
ng water supply.
3. Attach hose to drain connection.
4. Lift m
anual release lever on relief valve to let air into system
or break union on
outgoing water line.
5. Drain water from tank.
6. Disconnect the wires from the heating element terminals.
7. Unscrew element with a 1-7/8” 6-point socket with no bevel.
O-Ring
Groove
O-Ring
Terminal Connections #220 Buna-N O-Ring
8. Install new #220 Buna-N o-ring gasket and install new heating elem
ent. NOTE:
Hubbell recom
mends lubricating the o-ring with
Parker O-Lube prior to installation.
9. Rewire element according to the wiring diagram as shown in the Section II.
10. Fill tank and check around element for any leaks.
MAGNETIC CONTACTOR
1. Disconnect power from unit.
2.
Disconnect line and load wires to contactor.
3. Disconnect the control circuit wires.
Control Wires
Line Wires
Load Wires
Mounting Screws
4. Loosen holding screws and remove contactor.
5. Replace with new contactor using reverse procedure.
CONTROL BOARD
1. Disconnect power from unit.
2. Disconnect display cable, probe cable (J3)
and probe ground (J7), leak detection wire
(J2), ground wire (J8), and term
inal block (J5) from
the control board. NOTE: The
term
inal block (J5) is removable by grasping the term
inal block on the ends and