Bradford-White Corp D4504S*F(BN Manual De Usuario

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Damper Relay Installation  (cont’d) 
Step 2. 

Unplug the water heater from the wall outlet. 

Step 3. 

Disconnect the vent system from the draft hood 

that is mounted on top of the damper. 

Step 4. 

Remove the draft hood from the damper and retain it for use on the new 

damper.
Step 5. 

Unplug the cord sets from the damper. 

Step 6. 

Remove the two damper mounting screws using a 

1/4” nut driver and retain for later use. 

Step 7. 

Move the damper blade to the vertical position. 

Step 8. 

Move the switch on the back to the damper to the 

“Service” position (towards the front of the water heater). 

Damper (water 

heater) power cord 

Vent system 

Draft hood 

Damper 

Cord sets 

1/4” nut driver 

Damper Blade 

Service Switch

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