c. Emergency light operation.
(1) Place the 208 V main switches (figure 14) in the ON position.
(2) Depress 110 V circuit breaker switch 14 (figure 14).
(3) Place the emergency light switch (figure 14) in the ON or OFF
position as desired.
(4) When the operation is completed, depress 110 V circuit breaker 14
and place the 208 V main switch in the OFF position.
d. Heater operation.
(1) Starting heaters.
(a) Place the 208 V main switch (figure 14) in the ON position.
(b) Depress 110 V heater circuit breaker switches 5 and 8 (figure
14).
A data plate near the circuit breaker switch box lists circuits
numbered 1 through 24 and should be referred to in order to understand the
power distribution system. The 24 V DC required to operate the fuel pumps
and safety control circuits for the heaters are produced from the 110 V AC
line in the heater control box (figure 16).
Figure 16.
Heater controls
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