Navien NCB-24LDWE, Руководство по установке и эксплуатации

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30 Flue Syste m
Dual Duct System
For dual duct syste m , fit the co m ponents as shown in the figure:
1. Re m ove the air intake cap.
Air intake cap
2. Connect the corresponding adapters to the boiler (the gas
re m oval and air intake adapters).
Adapter
3. Connect the gas re m oval and intake ducts.
Exhaustion and intake ducts
Note
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For vertical ducts, the outlet m ust be at least 60 c m
fro m any opening.
Ɣ
The di m ensions (B, C, D, and E) m ay be reduced to
25 mm , as long as the flue ter m inal is extended to
clear any overhangs.
6.2 Selecting a Flue System
WARNING
Ɣ
The gas re m oval ducts m ust not be in contact with
or near fla mm able m aterials and they m ust not pass
through any structures or walls of buildings m ade of
such m aterials.
Ɣ
I f you replace the boiler, the old gas re m oval syste m
m ust be replaced by a new one.
Ɣ
The standard flue m ust be installed level. I f flue
extensions are needed, they m ust have a 3 degree fall
back to the appliance.
The fu m e extraction connection depends on the type of syste m
chosen (coaxial re m oval syste m or dual duct re m oval syste m ).
Carefully follow the instructions given below:
Coaxial System
For coaxial syste m , fit the co m ponents as shown in the figure:
Adapter