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Service Manual
Models: 51 - 211
This manual must only be used
by a qualified heating installer
/ service technician. Read
all instructions, including
this manual and the Knight
Wall Mount Installation and
Operation Manual, before
installing. Perform steps in
the order given. Failure to
comply could result in severe
personal injury, death, or
substantial property damage.
ƽ WARNING
Save this manual for future reference.
WBII-SER Rev C