MPI Technologies FCX manual Slfdolqvwdoodwlrqhdpsohv, Option Straight Horizontal Flue Kit

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The flue/combustion air system piping may be either horizontal or vertical or a combination of both, ob- serving the following:

•The maximum unrestricted horizontal or verti- cal flue length shall not be more than 16.4 ft (5 m).

•For each 90-degree elbow used in the flue sys- tem, subtract 3.3 ft (1m) from the total allowa- ble length.

•For each 45-degree elbow used in the flue sys- tem, subtract 1.65 ft (0.5m) from the total allo- wable length.

•Horizontal runs of the flue system must pitch down 3/4 inch per yard (2 cm per m) of length towards the boiler to facilitate proper flue pro- ducts condensate drainage.

•Termination of a horizontal flue system shall not be less than 5.96 ft(1.8m) above ground unless other provisions are made to minimize the likelihood of flue/combustion air intake blockage.

•Do not place the flue terminal less than 3.3 ft. (1 m) from a ventilation hole or opening in a building.

•Termination of a vertical flue must provide at least 12 inches (30cm) above the roof jack to the combustion air intake collar.

•If there are two units in the installation with ver- tical flue systems, the termination of the sys- tems must be separated by 16 inches (40cm).

30 cm - 12 In.

mini

16 In.

40 cm

mini

,167$//$7,21

All flue-piping components must be assembled to provide an airtight flue/ combustion air system.

Application of liquid soap over the flue pipes to be joined will aid in assembly of the parts.

Typical installation examples appear in the illustra- tion that follow.

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1 in
2.8 ft
1,80 m	5.9 ft.

Option: Straight Horizontal Flue Kit

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1 in
1,80 m	5.9 ft.

Option: Angled Horizontal Flue Kit

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