Figure 11. Heater fuel controls.
b. The heat range is from a low correspond-
20. Temperature Selector Indicator Knob
ing to a discharge air temperature of slightly
a. The temperature selector indicator knob
below 150F to a high corresponding to approx-
on the control panel next
imately 280F, Each number represents 25,
to the! temperature selector valve knob (fig.
with 150 being close to number "1" on the
11). Approximate range
or temperature selec-
fuel control panel.
tor valve knob is indicated by the pointer on
the temperature selector indicator knob. When
the temperature selector valve knob is rotated,
21. Temperature Selector Valve Knob
a pinion on the shaft engages a pinion on the
temperature selector indicator knob shaft and
a. The temperature selector valve knob (fig.
rotates the knob in direct relationship to the
in the center
of the fuel control
temperature selector valve knob.