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DUCTWORK CLEARANCES FOR COMBUSTIBLE MATERIALS
Clearance to the ceiling of the first horizontal
ductwork connecting the blower
Clearances to combustible materials from the blower
Clearance to combustible materials around air
register
Clearance to combustible materials around air outlet
Clearance around ductwork passing through wall
Instructions to balance the airflow at the different air outlet s:
1. The diameter of the main conduit should be reduced to 5" (127mm) af ter 20ft(6.1m) and/or
reduced by 1 inch every 2 air outlets.
2. After the system is completely installed, put the control sub-assembly to "M" to start blower
(refer to Section 11, Operating instructions).
3. Open all dampers located in ductwork leading to an air outlet.
4. Locate the outlet with the strongest airflow (it should be the first outlet from the blower) .
5. Slightly close the outlet damper and verify the airflow at each air outlet to compare their
speed. If the airflow of the strongest is still too strong, repeat this step.
6. Proceed progressively with each damper by closing them slightly and balancing each
airflow at air outlet. If at a last air outlet, it is impossible to keep a consistent airflow with
the previous air outlets, it might be an indicator that the section of the ductwork should be
reduced.
7. The damper of the furthest air outlet from the stove should stay fully open.
Installation Instruction HEATFLOW S5
English
2in MIN
1in MIN
1in MIN
1in MIN
1in MIN
46310A
2023-05-25
18
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