20
Condensing PV Series
20
Pressure Switch Replacement
Step 1. Position the gas control power
switch to the “OFF” position.
Step 2. Disconnect the tubing from the pressure switch (see photo 3).
Step 3. Remove three screws (Phillip’s screw driver) from the control access cover
on the blower assembly and remove the cover (see photo 4).
Step 4. Remove two screws (Phillips screw driver) from the blower housing and
carefully remove the pressure switch (see photo 5).
Step 5. Disconnect the wire leads from the pressure switch (see photo 6).
Step 6. Reconnect the wires from Step 5 to the new pressure switch.
Step 7. Carefully position the pressure switch into the blower housing and replace the
screws from Step 4.
Step 8. Replace the control access cover from Step 3 and fasten in place with the
three screws.
Step 9. Reconnect the tubing to the new pressure switch.
Step 10. Position the gas control power switch to the “ON” position and verify proper
heater operation.
WARNING
115 volt potential exposure. Use
caution to avoid personal injury.
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