HI 110 / 200 / 300 Operation
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4.10 Flex Ducting Options
Refer to the chart below for the maximum allowable return and supply duct lengths
for your machine.
NOTICE: Do not exceed the maximum total lengths specified in the chart.
Exceeding these lengths, or blocking any of the duct openings, constricts the air
flow through the machine and may cause a high-temperature shut-down fault.
MODEL RETURN DUCTING SUPPLY DUCTING
—Return
duct
adapter
Maximum
number of
25 ft. duct
sections
Total
combined
length
Supply
duct
adapter
Length of
each duct
section
(ft)
Maximum duct sec-
tions per opening
Tota l c o m -
bined
length
Qty Length
HI 110
Return ductwork not available.
12 in. 25 1 25 ft 25 ft
HI 200 14 in. 25 1 25 ft 25 ft
HI 200 2 X 12 in. 25 1 25 ft 50 ft
HI 300 16 in. 25 1 25 ft 25 ft
HI 300HD 2 X 12 in. 25 1 25 ft 50 ft