Hubbell G250P, Руководство по установке и эксплуатации, Страница: 25 / 67

25
Connections on Bottom of Unit
WARNING
TOXIC FUMES
To avoid serious injury or even death from exhaust gases
(carbon monoxide), make sure the water heater is properly
vented. Refer to all applicable local and national regulations,
mandates, and building codes for guidelines to install proper
venting.
1. Terminate the combustion air inlet with a 90 degree
elbow (angled down) or a tee fi tting.
a. On an exterior wall, use a fl ange and PVC
screen
(not supplied).
b. For roof top installation, a suitable roof fl ashing and
vent cap (not supplied) will be required.
2. Terminate the exhaust gas outlet on the exterior wall.
a. Side wall outlets must be at least 12” above ground
and at least 12” apart, or as required by local
building codes. In areas of high snow fall, protect
the vent terminations from blockage.
b. For roof top installation, a suitable roof fl ashing and
exhaust vent cap (not supplied) will be required.
IH-34
12”
Option A
Option B
12”
IH-34a
Option C
1
5
”
Side Wall Termination
NOTE
: Install a mesh screen made from stainless
steel or other suitable material no smaller than 1/4”
opening on both air intake and exhaust pipes.
Concentric Wall Venting System
IH-33
If desired, an optional concentric venting system, which
uses one 5” opening in an exterior wall or roof, as
opposed to cutting two 3” openings
can be used.
Follow all installation instructions included with the
concentric vent kit when installing this type of vent
system.
IH-51a
12” USA or
18” Canada
Over maximum
snow level or
as required by
local code
12” Minimum
3’ Minimum
12” USA or
18” Canada
Over maximum
snow level or as
required by local
code
Intake
Exhaust
Intake
Fresh air
vent
Exhaust
12” USA or 18” Canada
Over maximum snow
level or as required by
local code
Concentric Roof Venting System
Venting the unit through the roof is also an option. With
this installation method, the terminations must extend
at least 12” over maximum potential snow levels, or as
required by local building codes. In areas of high snow
fall, protect the vent terminations from blockage.
VENTING
Use screen on all
openings for
intake & exhaust
Use screen on all
openings for
intake & exhaust
Exhaust
Exhaust
Exhaust
Intake
Intake
Intake
NOTE
:
Units must be installed to have an
equivalent exhaust run of 5 feet (minmum).