MrCool MHWH199NC U Series, Руководство по установке

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WARNING
mrcool.com
Safety Precautions
FREEZE PROTECTION:
The water heater is equipped with an antifreeze protection function that activates based on
internal water temperature. If the system detects the water temperature is 41°F (5°C) or below,
it will activate a ceramic heater to ensure the water meets the target temperature and
maintain the preset temperature level. NOTE: If a power failure occurs during cold weather, the
antifreeze protection system of the water heater will not operate and may allow freezing
within the heat exchanger and waterway to occur. Please note the following information and
guidelines regarding the antifreeze protection function:
ALTITUDE ADJUSTMENT:
The parameter setting of the water heater may need to be adjusted depending on the altitude
of the location it is being installed. Please refer to the table below for the proper setting
based on altitude. This adjustment can be made through the water heater control panel.
Instructions on how to perform this adjustment can be found in the operating instructions
section of this manual. However, this adjustment should only be performed by a qualified
technician. If this adjustment is not made, or performed incorrectly, it could cause improper
operation of the unit. Improper operation could cause gas leakage, fire, and/or an explosion that
can put you at risk of personal injury or death.
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If the water heater is not going to be used in cold weather, please drain the water within
the waterway.
The freeze protection function will only operate when the temperature of the water circuit
inside the water heater is 41°F (5°C) or lower. However, it cannot be guaranteed that it will
provide protection to water pipes connected at a long distance that could be damaged
by freezing.
The antifreeze protection of the water heater only applies to waterways. Damage of
electrical components caused by a low ambient temperature is not covered by the
warranty.
In the event the water heater is not operating, be sure to drain any condensate water
completely. If this is not done, when the ambient temperature drops below 32°F (0°C), the
condensate will freeze and could cause damage to the internal condensation system of the
water heater.
Altitude setting
Units: feet (meters)
L2
Altitude
Program
data
2000 ft - 6500 ft
(609.6 m - 1981.2 m)
6500 ft - 9800 ft
(1981.2 m - 2987.0 m)
05 06
4