Electronic Controller; Replacement Parts Procedure - OCEANAIRE OWC series Engineering, Installation And Service Manual

REPLACEMENT PROCEDURE FOR PARTS
IT IS RECOMMENDED THAT ALL OCEANAIRE UNITS BE SERVICED BY A
WARNING—TO AVOID INJURY, DISCONNECT UNIT POWER PRIOR TO
A. FAN MOTORS
1. Remove cabinet's left-side panel (when looking at the front of the unit).
2. Evaporator fan motor—disconnect evaporator motor wires from evaporator fan
contactor and fan speed rocker switch.
3. For all model sizes 12, 18 and 36, remove the screws securing motor s and inlet
-
ring to blower housings (all screws are external and visible), and remove blower
wheel- motor assembly. Remove the blower wheel set screw and disassemble the
blower wheel from the motor shaft and remove the motor.
For models size 60—loosen blower wheel shaft set screw, and remove the screws
securing the motor mount to the blower housing and remove motor and mount.
Remove the motor from the motor mount.
4. Install the new motor, reversing the removal procedure.
B. ELECTRONIC CONTROLLER (2 PARTS)
1. To remove the display, first remove the two screws securing the display to the front
of the cabinet on each side of the display module. Unplug the display cable
and remove display. Plug in new display cable, and secure display to unit.
2. To remove the Power Module, remove the rear panel to locate the control box.
Disconnect wires, and remove power module. Install new power module, and
re-wire in accordance with the wiring diagram.
C. CONDENSATE PUMP (ALL UNITS)
1. Remove back panel and left side panel.
2. Remove brackets securing condensate pump in base pan, or condensate tank tray
pan
3. Disconnect pump wire leads. Remove retainer clamp and tubing.
4. Replace pump, install by reversing procedure.
D. WATER REGULATING VALVE
1. Remove back panel, and the two mounting screws for the water valve from the right
side panel.
2. Remove flare nut that secures capillary to the refrigeration system high pressure
side. A Schrader valve is located in the discharge port, and allows removal without
dumping the refrigerant charge.
3. Remove water valve from water lines by loosening the flare fitting at the valve outlet.
4. Replace water valve, and reconnect water and capillary lines.
E. HIGH PRESSURE SAFETY SWITCH
1. Remove cabinet back panel.
2. Remove flare nut that secures capillary to the refrigeration system high pressure
side. A Schrader valve is located in the discharge port, and allows removal without
dumping the refrigerant charge.
3. Remove two screws and spacers that retain high pressure switch.
4. Disconnect the low-voltage wire leads from compressor contactor and condensate
pump safety switch.
5. Install new High Pressure Control, reversing the procedure.
To gain access to compressor and compressor run capacitor, remove the back panel.
LICENSED TECHNICIAN
SERVICING
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