Manual Ignition Heaters; Safety Control Valve, I-17; Safety Control Valve, I-40 - L.B.White I-17 Manual Del Usuario E Instrucciones

FIG. 13
FUEL SUPPLY VALVE
(OPEN THIS VALVE TO
USE PRESSURE GAUGE)
OPEN

Manual Ignition Heaters

Service Instructions
Safety Gas Control Valve Model I-17
(Fig. 14)
1. Disconnect the gas hose.
2. Disconnect the thermocouple from the safety
valve.
3. Loosen the jam nut on the air housing.
4. Apply a soft flame to the body of the
safety control valve where it threads
to the air housing. This will soften the
thread sealant which is factory applied to the
air housing threads. Turning counterclockwise,
remove the safety control.
When reassembling:
-- Ensure o-ring is seated in jam nut.
-- Apply Loctite (supplied with replacement) to first
four threads of air housing.
-- Thread the safety control valve onto the air hous-
ing at least four full turns, and as needed to allow
the valve to be installed in an upright position.
-- Thread the jam nut hand tight against the body of
the control and secure in place with a wrench.
FIG. 14
Safety Control Valve
Jam Nut O-Ring
Apply Loctite
Thermocouple
I-17 / I-40 Manual and Spark Ignition
TEST KIT HOSE
PRESSURE GAUGE KIT
20736
GAS INLET OF HEATER
GAS SUPPLY HOSE
Air
Housing
Safety Gas Control Valve
Model I-40 (Fig. 15)
1. Disconnect the gas hose.
2. Loosen the bypass gas supply tube compression
nuts and swing the tube away from the safety
control valve.
3. Remove the thermocouple from the safety control
valve.
4. Loosen the screw on the injector body.
5. Remove the safety gas control valve with injector
tube from the heater.
6. Remove the injector tube.
FIG. 15
SCREW
Owner's Manual • I-17 / I-40
PILOT SAFETY VALVE
BYPASS GAS SUPPLY TUBE
INJECTOR TUBE
INJECTOR BODY
THERMOCOUPLE
21