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Read and follow section 4.3 Guidelines rst.
1. Insert the termination end cap into the intake air duct.
2. Provide two openings to allow for circulation of
combustion air as specied by ANSI Z224.1/NFPA 54.
In Canada refer to CAN/CSA B-149.1
NOTE: The FT needs fresh air for safe operation and
must be installed so there are provisions for
adequate combustion and ventilation air.
Model FTHF 199
Maximum Input (BTU/H) 199,000
Indoor make up air is provided, a minimum free area of 1 sq.
inch. per 1,000 BTU/H
199 in
2
13 1/4˝ (W) x 13 1/4˝ (H)
4.9 Vent / Air Pipe Termination
Vent Air Terminations:
After connecting terminals install vent screens on
both the vent and air inlet.
Two 3” vent screens are included with each unit.
Additional replacement screens are available for
purchase.
2” Vent Screen P/N - FT1508
3” Vent Screen P/N - FT1730
Vertical Vent Termination
• Direct Vent - Vertical Terminations
with Sloped Roof
Vent Screens are required
4.8.3 Indoor Combustion Air
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