Roberts Gorden CTU 22 TO 115 Removal And Replacement Parts, Burner Components, Gas Valve, Models

SECTION 16: REMOVAL AND REPLACEMENT PARTS

SECTION 16: REMOVAL AND REPLACEMENT PARTS

See warnings and notes on Page 30, Section 13 before removing or replacing parts.

Burner Components

All serviceable burner parts are accessed by the door on the right side of the heater. Use a screwdriver to turn the latch 90°. See Page 5, Section 4.

16.1 Gas Valve

Remove the gas supply pipe at the heater inlet.

16.1.1 Models 22 - 60

Remove fixing screw

Disconnect

wire harness

Unplug

control

from

valve

Ignition

Control

Description	Part Number
Gas Valve VR4105A	90033403
Ignition Control	90434010

16.1.2 Models 75 - 115

Unplug

electrical lead.

(rectifier harness)

Description	Part Number
Gas Valve VR4605	90033404
Ignition Control	90434020

Step 1

Unscrew gas pipe from the valve inlet.

Ignition

Control

Step 2

Unscrew valve from the

burner manifold

or

unscrew the fixing screws for the inlet and outlet flanges.

16.1.3 All Models

Replace in reverse order. Verify that the gas flow direction of the valve is correct. Use a minimum amount of gas seal on the thread joint. Re-use the "O" ring seal in the outlet flange where fitted. Check that all the joints are leak free. Reset gas valve. See

Page 26, Section 11.4.2.

IT IS IMPORTANT THAT ONLY THE CORRECT GAS VALVES SPECIFIED FOR EACH MODEL TYPE ARE USED WHEN REPLACING THESE CONTROLS.

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