A.O. Smith GDV, Инструкция по эксплуатации

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21
TEMPERATURE REGULATION
TEMPERATURE ADJUSTMENT
Valves for reducing the point-of-use temperature by mixing cold
and hot water are available (see Figure 2). Also available are
inexpensive devices that attach to faucets to limit hot water
temperatures. Contact a licensed plumber or the local plumbing
authority.
NOTE: During low demand periods, a lower thermostat setting
will reduce energy losses and may satisfy your normal hot water
needs. If hot water use is expected to be more than normal, a
higher thermostat setting may be required to meet the increased
demand. When leaving your home for extended periods (e.g.,
vacations etc.) turn the temperature dial to its lowest setting. This
will maintain the water at low temperatures with minimum energy
losses and prevent the tank from freezing during cold weather.
The thermostat is adjusted to the pilot position when it is shipped
from the factory. Water temperature can be regulated by moving
the temperature dial to the preferred setting. The preferred start-
ing point is 120°F at the “HOT” setting. Align the knob with the
desired water temperature as shown in Figure 26. There is a hot
water scald potential if the thermostat is set too high.
NOTE: Temperatures shown on the gas control valve/thermostat
are approximates. The actual temperature of the heated water
may vary.
IMPORTANT: Adjusting the thermostat past the 120°F mark on
the temperature dial will increase the risk of scald injury. Hot
water can produce fi rst degree burns within:
Water Tem-
perature (°F)
Time for 1st Degree
Burn (Less Severe
Burns)
Time for Permanent
Burns 2nd & 3rd
Degree (Most
Severe Burns)
110 (normal shower temp.)
116 (pain threshold)
116 35 minutes 45 minutes
122 1 minute 5 minutes
131 5 seconds 25 seconds
140 2 seconds 5 seconds
149 1 second 2 seconds
154 instantaneous 1 seconds
U.S. Government Memorandum, C.P.S.C., Peter L.
Armstrong, Sept. 15,1978
GAS CONTROL VALVE/THERMOSTAT
SETTINGS
GAS CONTROL/
TEMPERATURE KNOB
STATUS
LIGHT
IGNITER
120°F
MARK
130°F
MARK 155°F
MARK 150°F
MARK 140°F
MARK
91°F
MARK
FIGURE 26
Should overheating occur or the gas supply fail to shut off, turn
off the manual gas control valve to the appliance.
NOTE: During low demand periods when hot water is not being
used, a lower thermostat setting will reduce energy losses and
may satisfy your normal hot water needs. If hot water use is ex-
pected to be more than normal, a higher thermostat setting may
be required to meet the increased demand. When leaving your
home for extended periods (vacations, etc.) turn the temperature
dial to its lowest setting. This will maintain the water at low tem-
peratures with minimum energy losses and prevent the tank from
freezing during cold weather.
OPERATING THE TEMPERATURE CONTROL
SYSTEM
WATER TEMPERATURE ADJUSTMENT
The water temperature setting can be adjusted from 55°F to
155°F. Turn the Gas Control Valve/Temperature Knob to the
desired setting/temperature.
NOTE: The temperatures indicated are approximates. The ac-
tual temperature of the heated water may vary.
OPERATING MODES AND SETTINGS
Standard Mode - The controller adjusts the water heater to main-
tain the temperature set by the user.
Vacation Setting - The Vacation setting (VAC) sets the controller
at approximately 55°F. This setting is recommended when the
water heater is not in use for a long period of time. This effective-
ly turns the controller temperature setting down to a temperature
that prevents the water in the water heater from freezing while
still conserving energy.
TEMPERATURE REGULATION