L.B.White Oval 90 v.2 Manual Del Usuario E Instrucciones página 22

22
Oval Radiant Tube Heaters
Gas Control Valve
1. Remove the hose from sediment trap.
2. Remove the two nuts that secure the gas control valve's
mounting bracket to the center partition of the burner
box. See Fig. 23.
FIG. 23
3. Remove the 4 screws from gas valve door. See Fig. 24.
FIG. 24
FIG. 25
4. Pull valve assembly through the gas valve door opening.
See Fig. 25.
Owner's Manual • Oval Radiant Tube Heaters
Transformer
The transformer (Fig. 26) reduces the main power
supply voltage to 24 VAC. The 24 VAC is sent to the
ignition controller. Once the ignition controller receives
24 VAC, an ignition cycle begins.
If the transformer is receiving main power voltage, but
24 VAC is absent from its output terminals, the
transformer is defective. The heater will not operate, nor
will the green LED on the burner box side be on.
FIG. 26