Lennox FCM 85 User Manual

DUCT CONNECTIONS
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RECOMMENDATIONS FOR DUCTS CONNECTIONS
Some rules must be complied with for the connections between ducts and unit done on site.
Whatever the supply configuration is, respect a minimal duct’s length (D) of 2m before any elbow or any duct’s diameter
change.
These recommendations are imperative in the case of 2 independent turbines (sizes from 150kW to 230kW and all units
equipped with gas module)
Horizontal supply
Vertical supply
Here are obvious bad examples of ducts connections noted on site:
D ≥ 2m
D ≥ 2m
D ≤ 2m
D ≤ 2m

Lennox FCM 85 Specifications

General

Brand	Lennox
Model	FCM 85
Category	Heat Pump
Language	English