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