Lochinvar EGS-I&S-01 사용자 설명서

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EGS-I&S-01
6
INSTRUCTIONS FOR
POTABLE CONNECTIONS
1.
BEFORE PROCEEDING WITH THE
INSTALLATION, CLOSE THE MAIN WATER
SUPPLY VALVE.  After shutting off the main water
supply, open a faucet to relieve the water line pressure
to prevent any water from leaking out of the pipes
while making the water connections to the water
heater. After the pressure has been relieved, close
the faucet. The COLD water inlet and HOT water
outlet are identified on the top of the water heater.
Make the proper plumbing connections between the
water heater and the plumbing system to the house.
Install a shut-off valve in the cold water supply line.
2.
If this water heater is installed in a closed water
supply system, such as one having a back-flow
preventer in the cold water supply, provisions must
be made to control thermal expansion. DO NOT
operate this water heater in a closed system without
provisions for controlling thermal expansion.
Warranties do not cover damages from thermal
expansions such as pressure bulges and/or
deformities. A properly sized expansion tank will
alleviate most problems. Your water supplier or local
plumbing inspector should be contacted on how to
control this situation.
3.
After installation of the water lines, open the main
water supply valve and fill the water heater.  While
the water heater is filling, open several hot water
faucets to allow air to escape from the water system.
When steady streams of water flow through the
faucets, close them and check all water connections
for possible leaks.
Additional Recommended
Components
1.
Shut-off Valves – Allows isolation of water heater
from domestic water system and/or boiler system
during service.
2.
Unions – Allows water heater movement during
service if adequate clearance cannot be provided.
3.  Thermal Expansion Tank – If the water heater is
installed in a closed water supply system, such as one
having a back-flow preventer in the cold water line,
provide thermal expansion control.  Contact the water
supplier or local plumbing inspector for additional
information
MOVE THE WATER HEATER TO A PERMANENT
POSITION
 BY SLIDING OR WALKING.
WATER CONNECTIONS
 WARNING
FAILURE TO INSTALL AND MAINTAIN A
NEW, LISTED TEMPERATURE AND PRESSURE
RELIEF VALVE WILL RELEASE THE
MANUFACTURER FROM ANY CLAIM
WHICH MIGHT RESULT FROM EXCESSIVE
TEMPERATURE AND PRESSURES.
Hydrogen gas can be produced in an operating
water heater that has not had water drawn from the
tank for a long period of time. HYDROGEN GAS
IS EXTREMELY FLAMMABLE. To prevent the
possibility of injury under these conditions, we
recommend the hot water faucet be opened for several
minutes at the kitchen sink before you use any
electrical appliance that is connected to the hot water
system. If hydrogen is present, there will be an unusual
sound such as air escaping through the pipes as hot
water begins to flow.  Do not smoke or have open flame
near the faucet at the time it is open.
Keep clear of the temperature and pressure relief
valve discharge line outlet. The discharge may be hot
enough to cause scald injury. The water is under
pressure and may splash.
 WARNING
Do not plug the inlet and outlet tappings
of  tankless heater left installed in the boiler.
 WARNING
Temperature and pressure relief valve discharge
piping must be piped near the floor to eliminate
potential of severe burns.  Do not pipe in any area
where freezing could occur.  Do not install any shut-
off valves, plugs or caps to the temperature and
pressure relief valve or piping.
 CAUTION
If sweat fittings are to be used, DO NOT apply
heat to the nipples on top of the water heater.
Sweat the tubing to the adapter before fitting
the adapter to the water connections.  It is
imperative that heat is not applied to the nipples
containing a plastic liner.