GLOW T180 - 3.9 Venting

Glow T180
Tankless Condensing Water Heater
38
3.9 Venting
Improper venting of this tankless water heater
can result in excessive levels of carbon monoxide
which can result in severe personal injury or death.
This water heater must be vented in accordance
with the “Venting of Equipment” section of the latest
edition of the ANSI Z223.1 / NFPA 54 Natural Gas
Code and/or the “Venting systems and air supply
for appliances” section of the latest version of
the CAN/CSA B149.1 Natural Gas and Propane
Installation Code in Canada and in accordance with
all applicable local building codes.
3.9.1 Venting Guidelines
Δ For best results, keep the vent system as short
and straight as possible.
Δ Locate the tankless water heater as close as
possible to the vent termination.
Δ The water heater vent must not be common
vented with any other gas appliance or vent
stack.
Δ Slope vent upwards towards the vent terminal at
a minimum rate of 1/4” per foot (2% slope).
Δ Vent termination must be a minimum of 12”
above grade or expected snowfall.
Δ Vent and air intake pipe must be supported
every 4 feet of horizontal run and every 5 feet of
vertical run.
3.9.2 Glow T180 And Direct Vent
Δ All Glow T180 tankless water heaters are
manufactured as a direct vent unit (sealed
combustion), which draws combustion air
directly from outside the building.
Δ This Glow T180 water heater uses a
3” diameter exhaust and 3” diameter air intake
pipe.
Δ The air intake vent materials can be made of
Schedule 40 ABS, PVC, or CPVC materials and
in accordance with all applicable local building
codes.
3.9.3 Contaminated Make-Up Air
Will Damage The Unit
Δ Recommend not to operate the tankless
water heater in an area that is or will be under
construction or renovation.
Δ The Glow Brand warranty will not cover
damage and premature wear caused to the
unit due to installation in a contaminated
environment.
3.9.4 Exhaust Vent Piping Materials
Δ Use only 2”, 2 ½”, or 3” solid PVC/CPVC
schedule 40 PVC/CPVC or ULC S636 pipe and
ttings.
Δ Venting requirements in USA and Canada are
different. Please consult with the most recent
edition of the National Fuel Gas Code (ANSI
Z223.1 / NFPA 54) or CAN/CSA B-149.1 as well
as local codes for applicable venting regulations
and restrictions.
Δ For installation in Canada, eld supplied plastic
vent piping must comply with CAN/CSA B-149.1
(latest edition) and be certied to the standard
for type BH Gas Venting Systems. ULC S636
components of this listed system shall not
be interchanged with other vent systems or
unlisted pipe/ttings. All plastic components and
specied primers and glues of the certied vent
system must be from a single manufacturer and
not intermixed with other system manufacturer’s
vent system parts. The supplied vent adapters
are certied as part of the water heater.
Δ Units installed with vertical exhaust, must
have an additional approved condensate drain
installed on the horizontal section of the exhaust
vent. Fittings must be ULC S636 approved.
Δ Schedule 40 PVC/CPVC pipe/ttings have been
approved for use on this appliance with zero
clearance to combustibles.
Δ This water heater requires a special venting
system. Refer to the installation instructions for
parts list and method of installation.
Δ Use of cellular core Schedule 40 PVC
(ASTM F891), cellular core CPVC, or Radel
(polyphenylsulfone) in non-metallic venting
systems is prohibited. Covering non-metallic
vent pipe and ttings with thermal insulation is
prohibited.
Δ All of the exhaust venting connections must be
leak checked with a soap solution upon initial
startup of the water heater. Any leaks must
be repaired before continuing operation of the
water heater.
Δ Warranty will not be available if the water heater
is used for construction heat.