Bradford White URG2PV75H N Series Service Manual page 27

UPV75 Series
Gas Control Removal From Water Heater
Step 1. Position the gas control power switch to the "OFF" position
and unplug heater from wall outlet.
Step 2. Drain the heater to a point below the gas control level.
Step 3. Turn off the gas supply to the water heater and disconnect
gas piping from the gas control.
Step 4. Disconnect wire harnesses from the gas control.
Step 5. Remove the outer jacket burner access door.
Step 6. Disconnect the main burner feedline, swing away from the
gas control.
Step 7. Disconnect the pilot tube from the gas control and swing
away from the gas control.
Step 8. Remove the gas control from the water heater by rotating it counter clockwise.
DO NOT use a wrench on the gas control body, damage to the gas control
may occur. If necessary, use a length of ½" NPT pipe threaded into the gas
inlet of the gas control.
Gas Control Installation Into Water Heater
Step 1. Install a new gas control into the water heater by rotating clockwise. DO NOT
use a wrench on the gas control body, damage to the gas control may occur.
If necessary, use a length of ½" NPT pipe threaded into gas inlet of gas
control.
Step 2. Reattach the main burner feedline, pilot tube, igniter sensor wire and wire
harnesses from steps 4, 6 and 7.
Step 3. Re-install the outer jacket burner access door from the previous step 5.
Step 4. Reconnect gas supply piping to the inlet of the gas control and check for leaks.
Step 5. To resume operation, follow the instructions located on the lighting instruction
label or the lighting instructions located in the installation and operation
manual.
UPV75 SERVICE PROCEDURE VI
Gas Control
Testing and Replacement
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