A.O. Smith 104 Series, Инструкция по эксплуатации

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FIGURE 30.
SERVICE
The installer may be able to observe and F orre F t F ertain problems
whi F h may arise when the unit is put into operation HOWEVER,
it is re F ommended that only a quali ¿ ed servi F e te F hni F ian or
quali ¿ ed agen F ies, using appropriate test equipment, be allowed
to servi F e the heater
As preliminary step, F he F k wiring against diagram, F he F k for
grounded, broken or loose wires Che F k all wire ends to be sure
that they are making good F onta F t
ELECTRICAL SERVICING
LABEL ALL WIRES PRIOR TO DISCONNECTION WHEN SERVICING
CONTROLS
WIRING ERRORS CAN CAUSE IMPROPER AND
DANGEROUS OPERATION
VERIFY PROPER OPERATION AFTER SERVICING
GAS CONTROL VALVE
Figure 30 shows the F ombination gas F ontrol valves used on
these heaters
If gas F ontrol valve be F omes defe F tive, repairs should not
be attempted A new valve should be installed in pla F e of
defe F tive one