Gas Control Valve And Burner Orifice; Transformer - L.B. White Oval 80 Sentinel Owner's Manual And Instructions

Oval 80 and Sentinel Radiant Tube Brood Heaters
22
Gas Control Valve and
Burner Orifice
Remove the following:
a. Hose from the sediment trap.
b. Sediment trap with pipe nipple from the inlet of the
gas control valve.
c. Igniter from burner box.
d. Clear fl exible tube from the copper tube on the
burner. Fig. 26.
e. Four nuts and ground wire from the burner mount-
ing studs. See Fig. 26. Slide the burner slightly
down the burner tube.
FIG. 26
TUBE
BURNER
NUTS
BURNER ORIFICE:
Remove burner orifi ce. Slide the burner plate from the
four threaded burner mounting studs. See Fig. 27.
FIG. 27
BURNER
PLATE
ORIFICE
Owner's Manual • Oval 80 and Sentinel
GAS CONTROL VALVE:
Follow all previous steps under Gas Control Valve
and Burner Orifi ce. Then refer to following steps for
the Sentinel or Oval 80 brood heaters.
Sentinel Brood Heater:
Remove the screws that secure the gas control
valve's mounting bracket, located at exterior top of
the burner box. See Fig. 28.
FIG. 28
MOUNTING
BRACKET
SCREWS
Oval 80 Brood Heater:
Remove the four gas control valve mounting screws.
See Fig. 29.
FIG. 29

Transformer

The transformer (Fig. 30) reduces the main power
supply voltage to 24 VAC. The 24 VAC is sent through
the thermostat (if used) or directly to the ignition con-
troller. Once the ignition controller receives 24 VAC,
an ignition cycle begins. The red LED will come on.
If the transformer is receiving main power voltage, but
24 VAC is absent from its output terminals, the trans-
former is defective. The brood heater will not operate,
nor will the red LED on the burner box door be on.
MOUNTING
SCREWS