April 23, 1999
Page 15
A. The induced draft fan wheel must be cleaned as soon as there is any dust on it.
B. Follow the OPERATIONAL check as detailed on pages 12 & 13.
C. It is good maintenance practice to thoroughly vacuum the fan compartment, fan and
burner compartment at least once per year, to remove accumulated dust. The fan can be
removed for cleaning.
9. SUMMER OPERATION: A "manual" continuous fan switch is provided on the fan control
located in the burner compartment. Some summer cooling can be obtained by turning on
the fan to provide air circulation. Easiest on-off control is by using the disconnect switch or
fuse block switch to turn the fan "on" and "off" with the manual fan switch engaged.
