Laars FT Series, Инструкция по установке и эксплуатации, Страница: 28 / 92

Page 28
4.8.2
Indoor Combustion Air
Read and Follow Sections 4.3 Guidelines First.
1. Insert the termination end cap into the intake air duct.
2. Provide two openings to allow for circulation of
combustion air as specified 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 FTCW140 FTCW199
Maximum Input (BTU/H)
140,000 199,000
Indoor make up air is provided, a mini
-
mum free area of 1 in 2 per 1,000 BTU/H
140 in2 13 1/4"
(W) x 13 1/4" (H)
199 in2 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