Fig. 1
2
•
Flue
Duct
Installation
of
Forced
Exhaust
&
Air
‐
Supply
Type
Gas
Water
Heater
(
C
13
33
type)
This
product
is
a
Forced
Exhaust
&
Air
‐
Supply
Type
gas
water
heater,
it
can
be
used
before
exhausting the waste gas to the outdoor according to the strictest requirements. It’s not allowed
to use the gas water heater without operating the flue correctly.
Please follow the below requirements during the installation of flue duct:
(1)
Please use t
he flue supplied by our company, referring to Fig. 11 about the installation
method. If the flue duct is too short, you can extend it aptly. Check the flue duct and see if there
is any damage or leakage every half a year. Install the flue after the heater body is fixed. First, put
the fixed flue through the hole in the wall, then insert the elbow into the exhaust outlet of the
heater smoothly, the flue end should have a 2
°
downward inclination (Fig. 11), otherwise the
rain may flow into the heater and damage
it.
(2)
The length of the flue
duct should be less than 3
m, and the number of elbow
s should not be
more than 3
( one elbow equivalent 1m straight pipe)
.
(3)
The distance between the flue duct and the combustible materials should be more than
150mm. If the
flue duct needs to get through the combustible material
s
or wall, it should use the
heat shield material to pack the flue duct with the thickness
over 20mm.
（
Refer to Fig
.7
）
(4)
No cement between the flue duct and wall for the convenience of maintenance.
(5)
The
flue
duct
should
be
fixed
tightly.
The
connection
part
could
use
self
‐
adhesive
foil
to
avoid
the waste gas going back
into the room.
Cautions for flue installation
•
Please use the flue supplied by our company, Other flues with different specifications are
strictly prohibited. Do not change the specification of the flue.
•
The installation of the flue must be correct, otherwise the waste gases w
ill flow back and be
dangerous.( Fig. 12)
Fig. 12
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