Manual

15
GAS CONTROL VALVE
CAP
SAFETY CONTROL VALVE
LOW PRESSURE GAUGE
5
0
10
15
20
25
30
35
1. Remove the cap on the underside of the control valve.
See Fig.11.
2. Connect a pressure gauge at this point, capable of
reading up to 35 in. W.C. (L.B. White gauge part
number 00764.)
3. Reconnect the heater to its electrical supply and open
the fuel supply valves to the heater.
4. When the burner lights, the flowing gas pressure
must be 11 in. W.C. If not, either of the following
conditions exist:
a. Gas control inlet screen is plugged with debris.
Disassemble as needed. Remove the inlet screen
and clean with compressed air, or replace.
b. Single stage regulator is out of adjustment.
Replace the regulator.
5. After checking, remove gas gauge. Reinstall cap
(tighten securely).
FIG. 11
W
ARNING
Fire and Explosion Hazard
■ Do not disassemble the safety control valve.
■ Do not attempt to replace any component of the safety
control valve.
■ The safety control valve must be replaced if any
damage occurs to the valve.
■ Failure to follow this warning will result in fire or
explosion, leading to sever injury, death, or property
damage.