TM 10-4520-259-13&P
2-10.
PREPARATION FOR USE. (Fig. 2-4) Before starting the water heater, perform the "Before Operation"
PMCS described in Section II. Then proceed as follows:
a.
Ensure power switch (1) is turned to OFF.
b.
Ensure that manual fuel shut off valve (2) is closed.
c.
Press reset button (3) to ensure that flame safeguard control (4) is not locked
out.
d.
Open blower air shutter (5) approximately half way.
e.
Open fuel pump primer plug (6) and fill fuel pump (12) with fuel. Replace plug.
f.
Ensure that fuel supply hose (7) is connected to supply fitting (8) of fuel filter (9), and return fuel
line (10) to return fitting (11) of fuel pump (12).
WARNING
Exposed fuel and fuel vapor can ignite or explode resulting in
possible serious injury and even death. Observe proper safety
precautions when servicing the fuel system. Ensure that the
water heater is cold before servicing the burner.
CAUTION
Excessive water in the fuel supply will decrease heater
efficiency and corrode both the chamber and the burner.
NOTE
The operator must periodically monitor the level of the fuel
supply. The fuel container should be kept as full as possible to
reduce water condensation. The frequency of refueling is
dependent on the size of the fuel container.
g.
Ensure that all water lines are connected.
h.
Ensure that water heater drain cock (13) is closed.
2-20
