Space-Ray ADU25 Installation And Operation Instruction Manual page 44

Overhead radiant tube heaters
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2. After testing pressure and adjusting the regulator, turn off all electrical power to the system, remove
manometer tubes, turn OUTLET test screw clockwise to seal pressure port. Tighten to 1.0 Nm torque
minimum. Turn on system power.
Fig. 29a
Fig. 30
3. Remove the screwdriver and replace the plug into the upper surface of the control box door. Close the
control box door and secure with the two toggle latches.
FLAME SUPERVISION
To check the operation of the flame supervision equipment, run the appliance normally, turn off the gas
a.
supply at the gas isolation valve and observe that the amber neon indicator remains illuminated.
After a purge period of 10 seconds (minimum) the solenoid valves and the ignition spark electrode will be re-
b.
energized and with the gas still turned off, the ignition control will go to "lockout" condition after a further 12
seconds (maximum). Amber neon indicator extinguished.
Switch off the electricity supply to the appliance for a period of 15 seconds before attempting to re-ignite the
c.
burner. (see Section 0.
Form #4420110
Oct 2019
-43-

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