Ambirad DR 150 User Information, Installation And Servicing Instructions - Page 9

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REPLACEMENT PROCEDURES

Replacement of gas controller.
Gas controller
Edge connector
1.
Switch off electrical supply
2.
Unscrew the machine screws which retain the cover of the control enclosure. Remove cover.
3.
Disconnect the spark electrode lead from the control box terminal.
4.
Unscrew the two machine screws which retain the gas controller in place. Disconnect the edge connector
from the controller. Lift controller clear
5.
Replace controller and re-assemble.
6.
Re-commission heater.
Replacement of gas valve
1.
Switch off electrical and gas supplies
2.
Disconnect gas valve plug from gas valve.
3.
Disconnect flexible connector from gas valve
4.
Open the "union" which connects gas train to heater mainfold
5.
Remove gas valve.
6.
Replace valve and re-commission heater.
Gas valve plug
Union
9