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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 will flow back and be
dangerous.( Fig. 14)
■
Installation of water and gas pipes
(Fig. 15)
●
It can be used when the flue system can ensure that the provided gas pressure can reach the lowest
requirement. If gas water heater reaches the rated heat input, the gas pressure must reach the rated
heat input in the technologic parameter form.
●
Gas inlet
(1) Before
connecting the gas supply, check the rating plate on the right side of the right front cover to be sure
that the heater is rated for the same gas to which it will be connected.
(2)
All such pipe shall be either new or previously used for no other purpose than conveying gas; and must be in
good condition and free from internal obstructions. Burred ends shall be reamed to the full bore of the pipe. All
fittings used shall be of malleable iron, yellow brass, or approved plastic fittings. And flexible tube is not
allowed.
(3)
When your connections are made, check for gas leaks at all joints (this includes all existing piping). Apply
soapy water to all gas fittings and gas valve.
Soap bubbles are a sign of a leak.
NOTE:
No substance other than air, carbon dioxide or nitrogen can be introduced into the gas piping.
NOTE:
If you have a leak, shut off the gas. After verifying the leak, tighten appropriate fittings to stop leak. Turn
the gas on and check again with a soapy solution.
Never test for gas leaks using a match or flame.
●
Cold water inlet
When facing the heater, the cold water inlet is on your right and the hot water outlet is on your left. Although
water piping throughout your structure may be other than copper, we recommend that copper piping be used for at
least 0.92 m before and after the heater (follow local codes). Keep water inlet pipe to no less than 1/2” diameter to
allow the full flow capacity.
Remember that water pressure must be sufficient to activate the heater when drawing hot water from the top floor.
If the hot and cold connections to the heater are reversed, the heater will not function. 1/2’’Copper or brass fittings
work best when connected to the connectors. The flexible type connectors will make instillation easier and seals to
the water valve by means of a union connection with a washer type gasket at the joint. No pipe dope or thread tape
is to be used at this joint. Be certain there are no loose particles or dirt in the piping.
(Fig. 15)
Water pressure must be sufficient to activate the water heater, the maximum pressure for the appliance is 10bar,
even with the effects of water dilation, the water pressure in the appliance shall not exceed this value.