19
P40-R I&O Manual
IM120801
RD: AUG 2013
RL: 1D
WARNING
11. FLUE
VENTING
Inadequate venting of a heater may result in asphyxiation, carbon monoxide
poisoning, injury or death. This heater must be connected to a vent to remove
products of combustion from the space. Seal all vent connections with high
temperature sealant. Venting must be in accordance with all local, state, provin-
cial, and national codes (ANSI Z223.1/NFPA 54 in USA; B149.1 in Canada)
and as indicated below in this manual.
T
HIS
HEATER
MUST
BE
VENTED
DIRECTLY
TO
THE
OUTSIDE
. T
HE
SYSTEM
MUST
NOT
BE
OPERATED
WITHIN
A
NEGATIVE
AIR
CONDITION
. E
NSURE
ADEQUATE
AIR
SUPPLY
TO
THE
SPACE
TO
ENSURE
THERE
IS
NO
NEGATIVE
AIR
CONDITION
(
NEGATIVE
PRESSURE
IN
THE
SPACE
BEING
HEATED
).
T
HIS
GAS
APPLIANCE
MUST
NOT
BE
CONNECTED
TO
A
CHIMNEY
FLUE
SERVING
A
SEPARATE
SOLID
-
FUEL
BURN-
ING
APPLIANCE
.
GENERAL FLUE VENTING REQUIREMENTS
It is the sole responsibility of the installer to adhere to all current local codes and/or ANSI
Z223.1 / CSA.B149.1 latest editions for all venting requirements, and practices.
It is a normal condition that during heat-up and cool-down a tube heater will expand and con-
tract.
Allowances for heater expansion must be made in the venting
. Improper installation can
result in property damage, injury or death.
This heater has a positive vent pressure
A vent termination cap is supplied with the heater for use with horizontal side wall vent
All vent pipe and adapters must be listed and will be supplied locally by others
Vent pipe must be minimum 26 gauge single wall type “C” vent pipe of 4” (10 cm) diameter
except that portion of vent passing through the wall or roof shall be 4” type “B” vent
A minimum 12 inch (30 cm) length of minimum 26 gauge single walled 4” (10 cm) diameter
“C” vent pipe is to be installed on the swaged end of the tube before any vent elbow is fitted.
Seal all vent connections with high temperature sealant. Vent connections must be secured
with three (3) #8 sheet metal screws uniformly spaced around the circumference of the vent
pipe.
When the vent pipe passes through a cold or unheated area where the ambient temperature
is likely to produce condensation of the flue gases, the vent pipe will be insulated with a suit-
able material as approved and specified by the insulation manufacturer to withstand tem-
perature up to 460°F (238°C).
The vent system must
always
be adequately supported to
prevent sagging.
Refer to next pages for minimum and maximum vent length requirements:
Horizontal side wall vent: Pages 20 - 21
Vertical roof vent: Page 23
