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PDV Series
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 6 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.
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