Installer reference guide / Mono tank integrated type 70
Water Charging
Fill water into the outdoor unit by opening shut-off & drain valve.
Water outlet
Water inlet
Charging water to the water-circuit
After installation is completed, the following procedures shall be used to charge water into the outdoor unit.
• Connect water lines to water connections of air-water heat pump.
• Air vent valve shall be open at least 2 turns so that air can be eliminated in the system.
• Open the shut-off & drain valve in the water supply connection.
• Water pressure of supply line shall be over 2.0 bar for good charging work.
• Stop water supply when the pressure gauge of the tank integrated hydro unit indicates around 2.0 bar.
⑤
⑥
④
⑦
③
①
②
Mono tank
integrated hydro unit
No. Name Size Conncetions
①
Outdoor outlet ø28, T1.2, Copper
Crimp pipe fitting or
welding
②
Outdoor inlet ø28, T1.2, Copper
③
Hot water outlet ø22, T1.0, Copper
④
Sencondary return (option) ø22, T1.0, Copper
⑤
Cold water inlet ø22, T1.0, Copper
⑥
Space heating outlet ø28, T1.2, Copper
⑦
Space heating inlet ø28, T1.2, Copper
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