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Air Handler
Chapter4.–Installation
The Noritz Combi Boiler can control the operation of an Air Handler when a thermistor is used in combination with the Air Handler.
The Air Handler function is designed to stop the Air Handler’s pump and fan operation when the Combi Boiler's heating function
is not operating due to DHW operation, Combi Boiler errors or Low Water in the Combi Boiler.
The Air Handler turns off when the following conditions arise:
• Thermistor open or short.
• The Combi Boiler is supplying DHW, or it is in stand-by for DHW mode.
• The Combi Boiler is turned off.
• Make-up water (Auto feed mode) is in progress.
• In order to set up the Air Handler, from Installer Mode 8:AH mode should be activated. (Refer to page 38 of Installation Manual )
4
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12. Air Handler
Clod Water
DHW
DHW
Cold Water
T/T
Air Handler
DHW Supply
Heating Supply
Heating Return
DHW Cold Water Supply
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