Roberts Gorden COMPLETE HED Series, Инструкция по установке, эксплуатации и обслуживанию

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SECTION 8 : V
ENTING
37
SECTION 8 : VENTING
8 .1 General Ventin g Re q uirements
This heater m u st be v ented in accordance w ith the
r u les contained in this man u al and w ith the follo w ing
national codes and any state, pro v incial or local
codes w hich may apply:
United States: Refer to National F u el Gas Code
NFPA 54/ANSI Z223.1 - latest re v ision.
Canada: Refer to Nat u ral Gas and Propane
Installation Code CSA B149.1 - latest re v ision.
Exha u st end of heater w ill accept a 4
"
(10 cm) v ent
pipe u sing the v ent adapter (P/N 90502700). To
pre v ent leakage of condensation, install the v ent
adapter w ith the seam on top and seal the joint u sing
a high temperat u re silicone sealant.
Any portion of v ent pipe passing thro u gh a
comb u stible w all m u st ha v e an appro v ed thimble
to conform w ith the abo v e listed codes.
Vent pipe m u st be sloped do w n w ard a w ay from the
b u rner 1/2'' (1 cm) for e v ery 20' (6 m).
The heater may be indi v id u ally v ented or common
v ented. When v enting horizontally, a maxim u m of t w o
heaters can be commonly v ented. See Page 41,
Section 8.9 . When v enting v ertically, a maxim u m of
fo u r heaters can be commonly v ented. See Page 42,
Section 8.10 .
The heater may also be installed u n v ented in certain
circ u mstances according to b u ilding v entilation
codes. Refer to the abo v e codes and Page 37,
Section 8.2 for f u rther information. Un v ented
operation also req u ires compliance w ith the
clearances to comb u stibles gi v en on Page 8, Figure
12 .
The bottom of the v ent or air intake terminal shall not
be located less than 1' (.3 m) abo v e grade le v el.
The v ent shall not terminate less than 7' (2.1 m)
abo v e grade w here located adjacent to p u blic
w alk w ays.
Vent terminal m u st be installed at a height s u fficient
to pre v ent blockage by sno w and b u ilding materials
protected from degradation by fl u e gasses.
Sec u re all joints w ith #8 x 3/8 sheet metal scre w s.
Seal all joints w ith high temperat u re silicone sealant.
Vent terminal m u st be beyond any comb u stible
o v erhang.
8 .1.1 United States Re q uirements
Vent m u st terminate at least 3' (.9 m) abo v e any
forced air inlet located w ithin 10' (3.1 m).
Vent m u st terminate at least 4' (1.2 m) belo w , 4'
(1.2 m) horizontally from, or 1' (.3 m) abo v e any door,
operable w indo w , or gra v ity air inlet into any b u ilding.
8 .1.2 Canadian Re q uirements
The v ent shall not terminate w ithin 6' (1.8 m) of a
mechanical air s u pply inlet to any b u ilding.
The v ent shall not terminate w ithin 3' (.9 m) of a
w indo w or door that can be opened in any b u ilding,
any non-mechanical air s u pply inlet to any b u ilding,
or of the comb u stion air inlet of any other appliance.
8 .2 Unvented Operation
S u fficient v entilation m u st be pro v ided in the amo u nt
of 4 cfm per 1000 Bt u /h firing rate (United States); 3
cfm per 1000 Bt u /h firing rate (Canada).
Use of optional o u tside comb u stion air is not
recommended w ith u n v ented heaters.
If exha u st fans are u sed to s u pply v entilation air, an
interlock s w itch m u st be u sed to pre v ent the heater
from coming on w hen the fans are off. This may be
done u sing a press u re s
w itch.
WARNING
Carbon Monoxide Hazard
Heaters installed unvented must be interlocked
with sufficient building exhaust.
Heaters must be installed according to the
installation manual.
Failure to follow these instructions can result
in death or injury.
WARNING
Cut/Pinch Hazard
Wear protective gear during installation,
operation and service.
Edges are sharp.
Failure to follow these instructions can result
in injury.