Lochinvar Knight KBN400, Руководство по установке и эксплуатации, Страница: 17 / 80

17
3
General venting
(continued)
Installation & Operation Manual
Requirements for installation in
Canada
1. Installations must be made with a vent pipe system
certifi ed to ULC-S636.
2. Th
e fi rst three (3) feet of plastic vent pipe from the
appliance fl ue outlet must be readily accessible for visual
inspection.
3. Th
e components of the certifi ed vent system must not be
interchanged with other vent systems or unlisted
pipe/fi ttings. For concentric vent installations, the inner
vent tube must be replaced with fi eld supplied certifi ed vent
material to comply with this requirement.
4. Th e 4" Concentric Vent Kit available from Lochinvar (see
Section 4 – Sidewall Termination – Optional Concentric
Vent ) and the 4" Concentric Vent Kit available from IPEX
are both approved for use on the Knight XL (400 - 601
models only) boiler. Both kits are listed to the ULC-S636
standard for use in Canada.
Th e appliance output rating will reduce
by up to 1.5% for each 25 feet of vent
length.
NOTICE
Sizing
Increasing or decreasing combustion air
or vent piping sizes is not authorized.
NOTICE
Model Air Intake Vent
400 - 601 4 inches (102 mm) 4 inches (102 mm)
701 - 801 4 inches (102 mm) 6 inches (152 mm)
Th e Knight XL uses model specifi c combustion air intake and
vent piping sizes as detailed in Table 3A below.
Table 3A Air Intake/Vent Piping Sizes
Model Kit Number
Equivalent
Vent Length
400 100140484 5 Feet (1.5 m)
501 100140484 30 Feet (9 m)
601 100140484 30 Feet (9 m)
Table 3B Concentric Vent Kit Equivalent Vent Lengths
Minimum / Maximum allowable
combustion air and vent piping lengths
are as follows:
Combustion Air = 12 equivalent feet (3.7 m) minimum / 100
equivalent feet (30.5 m) maximum
Vent = 12 equivalent feet (3.7 m) minimum / 100 equivalent
feet (30.5 m) maximum
When determining equivalent combustion air and vent
length, add 5 feet (1.5m) for each 90° elbow and 3 feet (.9 m)
for each 45° elbow.
EXAMPLE: 20 feet (6 m) of PVC pipe + (3) 90°
(3) 45° (1) concentric vent kit (100140484) = 49
equivalent feet (15 m) of piping.