Bradford-White Corp Exhaust Pressure Switch Replacement

Exhaust Pressure Switch
Replacement WARNING
120 volt potential exposure. Use caution
to avoid personal injury.
Step 7. Reconnect wires from step 5 to new pressure switch.
Step 8. Reconnect tubing to new pressure switch.
Step 9. Carefully position pressureswitch into blower housing.
Step 10. Reconnect wires and tubing to inlet pressure switch.
Step 11. Position gas control power switch to “ON” position and verify proper heater operation.
Step 12. Replace control access cover from step2.
Step 1. Position gas control power switch
to “OFF” position.
Step 2. Remove the three screws (Phillips screw driver) from control access cover on blower assembly and
remove cover (see photo 3).
Step 3. Disconnect the tubing and wires from inlet pressure switch.
Pressure Switch
Slide pressure switch indirection
of arrow while tilting slightlyaway
from blower housin g.
Step 4. Carefully remove pressure
switch from blower
housing (see photo 4)
Step 5. Disconnect tubing fro m
pressure switch.
(see photo 5)
Step 6. Disconnect yellow wir es
from pressure switch
(see photo 6)
PDX SERVICE PROCEDURE III
Pressure Switch Testing and
Replacement
Page 18
34
5 6
PDX Series
18