Giant UGT-199N Manuel D'installation Et D'utilisation page 82

WARNING
Testing the pressure relief valve should only be
performed by a licensed professional. Scalding hot
water may be released under pressure.
Pressure Relief Valve:
Operate the valve manually once a year. In doing so,
it will be necessary to take precautions with regard to
the discharge of potentially scalding hot water under
pressure. Ensure discharge has a place to flow.
Contact with your body or other property may cause
damage or harm.
Visual Inspection of Flame
Verify proper operation after servicing.
The burner must flame evenly over the entire surface
when operating correctly. The flame must burn with a
clear, blue, stable flame. See the parts breakdown of
the burner for the location of the view ports.
The flame pattern should be as shown in the figures
below.
38
Freeze Protection
Make sure that in case of freezing weather that the
water heater and its water lines are adequately
protected to prevent freezing. Damage due to
freezing is not covered by the warranty. Refer to the
section on Freeze Protection.
Winterizing
These recommendations are intended to suggest
practices which are effective for winterizing the water
heater. They should be used as a guide only. No
liability is assumed for any issues resulting from the
use of this information.
GAS
Shut off the gas to the water heater. It is generally
preferable to shut off the gas service to the entire
location if gas is not going to be used.
WATER
Shut off the cold water supply to the water heater. It
is generally preferable to shut off the water to the
entire location if water is not going to be used.
Drain the water heater by opening the drain valves on
the cold water line and hot water line.
Open several hot water taps and remove the filter
assembly at the water inlet in order to allow room for
expansion in case there is water in the lines that
freeze.
ELECTRIC
Disconnect the power supply by either unplugging the
electrical cord or by turning off the circuit breaker to
the water heater to prevent potential damage from
irregular power surges or interruptions.
VENT TERMINATION
Place a cover over the vent termination (intake and
exhaust) if it can be safely accessed. The cover should
be easy to apply and remove. This will prevent
debris, leaves, and small animals from entering the
venting and water heater which could cause air flow
issues upon return to service.
UGT Series Manual