OCEANAIRE OWC1811QC, Engineering, Installation And Service Manual

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OWC1811QC
REPLACEMENT PARTS PROCEDURE
IT IS RECOMMENDED THAT ALL OCEANAIRE UNITS
BE SERVICED BY A LICENSED TECHNICIAN
WARNING
— TO AVOID INJURY, DISCONNECT UNIT POWER PRIOR TO SERVICING
A. FAN MOTOR
1. Remove rear panel and cabinet left-side panel (when looking at the front of the unit).
2. Evaporator blower wheel — disconnect evaporator motor wires from run capacitor and
power module (L1/L2).
3. Remove the screws securing motor and inlet-ring to blower housing (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.
4. Install the new components, reversing the removal procedure.
B. ELECTRONIC CONTROLLER (THERMOSTAT)
To replace cooling thermostat, remove left side panel to access controller assembly. Using
a 5/16” nut driver, remove (2) nuts on threaded studs, unplug the display cable, and lift up
to remove the controller. Plug display cable in the new controller, and secure in place.
C. POWER MODULE
To remove the power module, remove the rear control box cover. Disconnect wires (one at
a time), and re-attach each wire, while holding replacement module in other hand. Once
all wires have been reconnected in accordance with the wiring diagram, install new
power module.
D. CONDENSATE PUMP
1. Remove condensate pump access panel.
2. Remove brackets securing condensate pump in
base pan.
3. Disconnect pump wire leads at Molex
connectors. Remove retainer clamp and tubing.
4. Replace pump, install by reversing procedure.
E. HIGH PRESSURE SAFETY SWITCH
1. Remove cabinet rear panel.
2. Remove flare nut that secures capillary to the refrigeration system high pressure side.
A schrader valve is located in the discharge port which allows removal without losing
the refrigerant charge.
3. Remove two screws that secure high pressure switch.
4. Disconnect wire leads from power module and condensate pump safety switch.
5. Install new High Pressure Switch, and splice in new wire leads with existing control
wires. Then reverse in order to complete procedure.
To gain access to compressor and compressor run capacitor, remove left hand side panel.
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