Variable Heat Output Instructions - L.B.White Guardian AB250 Manual Del Usuario E Instrucciones

16
Guardian LP or Natural Gas Heater
Variable Heat Output
1. Some models of propane (LP) gas or natural
gas heaters have a throttle valve for varying
heat output located between the gas control
valve and gas manifold assemblies. See Fig.
13. THIS IS NOT A MANUAL GAS SHUT OFF
VALVE.
2. The throttle valve can be adjusted to deliver
either minimum heat or maximum heat. When
the throttle valve handle is parallel to the gas
flow, the valve is completely open to deliver
maximum heat output. The throttle valve may
be adjusted to minimum heat output by turning
the handle 90° to gas flow or any position
between maximum and minimum settings. See
Fig. 14).
FIG. 13
THROTTLE
VALVE
GAS CONTROL
VALVE
FIG. 14
Owner's Manual • Guardian
GAS
MANIFOLD
MAXIMUM HEAT