Immergas HE COMBI INTERNAL - Page 8

8
INSTALLERUSER
MAINTENANCE TECHNICIAN
Tables of Resistance Factors and Equivalent Lengths.
TYPE OF DUCT
Resistance
Factor
(R)
Equivalent length in m
of Ø60/100
concentric pipe
Equivalent
length
in m of Ø80/125 pipe
Concentric pipe Ø60/100 m 1
Intake and
Exhaust 16.5
m 1
Intake m
Exhaust m
Concentric bend 90° Ø60/100
Intake and
Exhaust 21
m 1.3
Intake m
Exhaust m
Concentric bend 45° Ø60/100
Intake and
Exhaust 16.5
m 1
Intake m
Exhaust m
Terminal complete with concentric horizontal
intake-exhaust Ø60/100
Intake and
Exhaust 46
m 2.8
Intake m
Exhaust m
Concentric horizontal
intake- exhaust terminal Ø60/100
Intake and
Exhaust 32
m 1.9
Intake m
Exhaust m
Terminal complete with concentric vertical
intake-exhaust Ø60/100
Intake and
Exhaust 41.7
m 2.5
Intake m
Exhaust m
Concentric vertical intake-exhaust terminal Ø60/100
Intake and
Exhaust 26.5
m 1.6
Intake m
Exhaust m