SKGE3 Gas Fired Humidifier
Installation Instructions and User Manual
25
Stage 6
– Combustion Air Installation
Natural Ventilation Installation
Natural ventilation configuration - Fig. 34
Ducted Combustion Air
“Ducted Combustion Air’’ option, also called Sealed Combustion, is available upon
request.
Installation of the combustion air duct must be as direct as possible, with a minimum
number of turns or elbows.
Combustion air duct length and flue gases venting pipe must not exceed:
30m
– 1.5m x (total number of 90˚elbow).
Combustion air duct must be insulated to avoid condensing around the duct when
outside air temperature is very low.
Ensure that combustion air duct connections are air tight.
Minimum combustion air duct upward gradient must be 20mm in 1000mm horizontal
run.
Model
Combustion air inlet
diameter per module
SKGE3-
0501 to 4004
Ø 51mm O.D.
Low level opening
High level opening
Outside
Wall
Humidifier’s Air openings
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