A.O. Smith ATI-140H-N Service Handbook page 33

10. Reassemble all items in reverse
order. Use this checklist:
□
If necessary, refer to the
exploded assembly views
which start on page 67.
□
Inspect all gaskets.
□
Ensure that the black O-rings
and mesh filter on the gas
valve inlet are not pinched or
otherwise damaged during
reinstallation.
□
ALL screws must be hand
tightened only, especially
around the gas valve inlet.
□
Reconnect the plastic tube
from gas valve to the bottom
of the combustion chamber.
□
Reinstall the fan.
□
Verify that all components are
reattached and are secure.
NOTICE:
•
Ensure that all wire
connectors have been
reconnected.
•
Some connectors are
not keyed. When they
are not, align the printed
number on the wire
to the corresponding
number that is stamped
on the solenoid body. See
Figure 23.
For example, if "73" is
printed on a wire, its pin
should plug into the side
of the connector that has
the number "73" stamped
closest to it.
•
All connectors with yellow
wire go to the same circuit.
They may be reconnected in
any order.
Figure 23.
Solenoid Connector
Stamped Numbered
Number
In each case, these numbers
must match.
Condensing Models: On-Demand Water Heater Service Handbook • 33
Wire