Thermann Installer's Manual
Thermann X Split Heat Pump
14
• Connect one of heat pump pipes on the “COLD WATER” side of the heat pump unit
and the “FLOW” side of the tank unit.
• Connect the other end of heat pump pipes on the “HOT WATER” side of the heat pump
unit and the “SOLAR RTN” side of tank unit.
• Connect the water supply pipe to the “INLET” side of the tank unit.
• Connect the hot water supply pipe to the “OUTLET” side of the tank unit.
• Install the supplied PTR valve on the “PTRV” side of the tank unit.
• Pass water through the pipe to remove any dust inside before connecting the pipe.
• After all the piping connections are completed, pass water through the system.
• Remove the air from the system according to the instructions on page 15.
• Make sure all the necessary devices are mounted to the pipes as shown in diagram.
If the heat pump unit piping is crushed or clogged or the air inside was not removed
during the test operation, the temperature of the supplied hot water may become
inconsistent.
• Pipework between t
he heat pump unit and the tank unit is to be 15mm (1/2”) copper
pipes (both flow & return).
Note: Pipework must be insulated using material with a thermal conductivity of
0.035W/m• K or a thickness of 15mm or more.
Heat Pump Unit
Hot Return
Cold Supply
Tundish
Cold Water Inlet
Hot Water Outlet
From Town
Water Supply
Water Tap
PTR Valve
850kPa
Isolation non return valve
Pressure Reducer Valve 500kPa
Thermistor Cable
To Tank Unit
Hot Water flow
Cold Water flow
To Heat Pump Unit
Tank Unit
Tundish
To House
Figure: Hot and Cold Pipework
HEAT PUMP UNIT PIPING
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