TTW SERVICE PROCEDURE VI

Gas Control & Thermal Well Testing

and Replacement

Gas Control Assembly to Thermal Well

Step 1. Install threaded end of thermal well into tank. Be sure thermal well flange is positioned as shown in photo 24 for proper control alignment.

Step 2. Route wire leads back into relief opening. (see photo 24)

Step 3. Align slots located on thermal well flange with tabs located on back of gas control (see photos 24 & 25)

Thermal well flange slots

Step 4. Carefully push control back onto thermal well flange as far as possible towards water heater. Slide control down to lock into position.

Step 5. Install burner and connect pilot and feedline to gas control.

24

25

Route wires through relief opening

Gas control Tabs

Igniter/sensor connection

Ground Wire connection

5 pin blower harness connection

Step 6.

Step 7.

Step 8.

3 pin

thermal well connection

Reconnect wire harnesses to gas control per the illustration.

Reconnect gas piping to gas control. Restore gas supply and check for gas leaks.

To resume operation, follow the instruction located on the lighting instruction label or the lighting instruction located in the installation and operation manual.

Flammable Vapor

Sensor

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27

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Image 27
Bradford-White Corp TW465S65F, M4TW60T*F, M2TW50T*F, M4TW50T*F, M2TW65T*F, M1TW40S*F Gas Control Assembly to Thermal Well

M4TW40T*F, M1TW50S*F, M2TW50T*F, M4TW50T*F, M4TW60T*F specifications

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