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CHYHB* INSTALLATION IN A NUTSHELL 30kg 1,2,3, 1 2 3 Ø22 Refrigerant liquid Refrigerant gas 1/4” 5/8” Water Water return flow 36kg Cold mains Water Water flow return water Cold water supply mains Ø15 supply Ø15 Ø22 Installation in a nutshell CHYHB* 4P471760-1 –...
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X39A X39A X2-2 (BRN) : L Connect flue system to X2-4 (BLU) : N top of boiler as described connect earth in manual In case of UA-52 error Set boiler parameter Cause Possible solution Boiler parameter Set boiler parameter is not set correctly correctly Software incompatibility between boiler and...