Noritz CB180-DV, Руководство пользователя

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10. Preventing Damage from Freezing-1
Preventing Damage form Freezing Chapter 3. – Unit Operation
CAUTION
• Damage can occur from freezing water within the device and pipes even in warm environments.
Be sure to read below for appropriate measures.
• Repairs for damage caused by freezing are not covered by the warranty.
Electrical power, gas, water and the main switch must be on. If any of the above items are not connected properly,
then water must be drained including the condensation trap and unit unplugged from electrical power.
1. Freeze Prevention
• This Combi Boiler has functions to protect itself from freezing by operating the pump and turning on the burner
when the thermistor detects lower than 54°F(12°C).
• During Freeze Prevention, ( ) is lit on the control panel.
2. Heating System
• Freeze protection products may be used for the heating system. Freeze protection for new or existing systems requires specially formulated
glycol, which contains inhibitors to prevent the glycol from attacking the metallic system components.
• Before using freeze protection products, ensure that system fluid contains proper glycol concentration and the inhibitor level is appropriate.
Noritz recommends against exceeding a 50% concentration of glycol.
• When using the freeze protection products, the system must be tested at least once a year, and as recommended by the manufacturer of
the glycol solution.
• When using the freeze protection products, allowance should be made for expansion of the glycol solution.
• Freeze damage is not covered by the warranty.