Lochinvar HERALD HCB116CE, Installation Manual

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10.2 FLUE SYSTEM TECHNICAL DETAILS
Model Number HCB46CE HCB61CE HCB86CE
FLUE DATA TYPE B
23
Nominal flue diameter mm 80+/-0.6 100+/-0.6
Maximum flue gas temp °C 120
Maximum equivalent length m 60
Equivalent length 90

bend
mm 1000
Equivalent length 45

bend
mm 500
Flue gas temperature °C 70
Flue draught requirements mbar -0.03 to -0.1
FLUE DATA TYPE C
13
& C
33
Nominal flue diameter mm 80/125 100/150
Maximum flue gas temp °C 120
Maximum equivalent length m 30
Equivalent length 90

bend
mm 1000
Equivalent length 45

bend mm 500
FLUE DATA TYPE C
43
& C
53
Nominal flue diameter mm 80 100
Average flue gas temp (80/60 Flow/Return) °C 70
Maximum flue gas temp °C 120
Maximum equivalent length m 60*
Equivalent length 90

bend mm 1000
Equivalent length 45

bend mm 500
10.2.1 FLUE SYSTEM TECHNICAL DATA TABLE
*
On twin pipe systems, the maximum equivalent length is the sum of the air inlet components and the
exhaust components.
10.3 FLUE DISCHARGE
The flue system must ensure safe and efficient operation of the equipment to which it is attached, protect the combustion
process from wind effects and disperse the products of combustion to open external air.
The flue must terminate in a freely exposed position and be so situated as to prevent the products of combustion
entering any opening in a building.
Under certain operating and weather conditions, the Herald boiler may generate a plume at the terminal. Consideration
should be given to the nuisance this may cause and the terminal should be sited accordingly.
For further information on terminal locations, please see Section 10.4.1
10.4 CONDENSATE DRAIN
If the flue system rises at an angle of at least 3

(50mm per metre), no additional condensate drain will be required.
Failure to provide an adequate rise in the flue system may lead to pooling of condensate which may lead to premature
failure of the flue system.