MAIN ORIFICE - REPLACEMENT
A.Remove appropriate control box cover.
B.Remove bypass tube assembly.
C.Remove four (4) nuts from burner orifice bracket.
D.Disconnect pipe union.
E.Remove assembly and replace main orifice.
F.Reassemble in reverse order and check system operation. NOTE: Check all gas line fittings for leaks.
BYPASS ORIFICE – REPLACEMENT
A.Shut off power at main breaker.
B.Remove appropriate control box cover.
C.Remove pilot tube from bypass orifice and remove orifice.
D.Reassemble in reverse order and check system operation. Check all gas connections for leaks.
ON-OFF SWITCH (POWER) - REPLACEMENT
A.Remove control box cover.
B.Depress spring clips on side of switch and push out.
C.Remove wires from back of switch, note wire number and location.
D.Reassemble in reverse order and check system operation.
NOTE: Make sure switch housing is fully seated in control box housing.
BURNER CONTROL TRANSFORMER, - REPLACEMENT
A.Remove appropriate control box cover.
B.Remove two (2) wires on primary side, note color and location.
C.Remove two (2) wires on secondary side, note color and location.
D.Remove two (2) screws from transformer base and replace assembly.
D.Reinstall in reverse order and check system operation.
CONTROL TRANSFORMER – REPLACEMENT
See “BURNER CONTROL TRANSFORMER” above.
CAPACITOR, MAIN FAN MOTOR (7.5 MFD/370V) - REPLACEMENT
A.Remove appropriate control box cover.
B.Remove two (2) wires from capacitor, note wire number and location. WARNING: Capacitor has a stored charge, discharge before handling or testing.
C.Cut two (2) tyraps securing capacitor to base and replace.
D.Reinstall in reverse order and check system operation.
RELAY - REPLACEMENT
A.Remove control box cover.
B.Remove wires from relay, note wire numbers and location for reinstallation.
C.Remove two (2) screws from relay base and replace relay.
D.Reassemble in reverse order making sure wire connectors are properly seated.
E.Check system operation.
THERMOSTAT, COOLING FAN - REPLACEMENT
A.Remove appropriate control box cover.
B.Remove two (2) wires from thermostat, note wire number and location.
C.Remove two (2) mounting screws and replace thermostat.
D.Reassemble in reverse order and check system operation.
Low Profile – 1600 Series Advantage Digital Service Manual – Domestic | 11 |
