Installation guide

10.FurnaceMaintenance
CAUTION
It is recommended that the furnace be inspected and
serviced on an annual basis (before the heating sea-
son) by a qualified service technician.
See "User's Information Manual".
PressureSwitch
During regular yearly maintenance check for cracks in any tubes
on the pressure switch.
Labeling
CAUTION
Label all wires prior to disconnection when servicing
controls. Wiring errors can cause improper and dan-
gerous operation.
Verify proper operation after servicing.