2.10 Pipe joints
The pipe joints have 1" inner threads at the ends. Use the supplied flat gaskets to seal
each joint. Equip the pipes with shut-off valves.
Be careful not to twist or turn the unit’s pipes. This could loosen the pipe
joints inside unit.
Leaks in the brine circuit
Ensure that in case of a brine circuit leak, no water or brine can travel along the pipes
or through or along pipe insulation into the heat pump’s case.
Realigning brine circuit pipe joints (models with an integrated DHW tank)
The brine circuit’s piping can be realigned to a suitable direction during installation. If
the pipes need to be realigned to face a new direction (for example, from left to right),
straighten the original bend before making a new one. If you simply rotate or bow the
pipe without making a bend, the joint at the other end of the pipe may become loose.
The minimum bend radius is 35 mm. Do not bend the pipe at the same spot more than
three times.
● Start by straightening the right-facing bend.
● Create a new bend facing the desired direction.
● Do not rotate or fold the pipe without creating a new bend first, otherwise the
threaded connection at the other end of the pipe may become loose.
2.11 Removing the compressor unit from the frame (CUBE)
The compressor unit can be detached for easier moving, carrying, or servicing. To
avoid injuries or damage to the equipment, be careful when moving or carrying the unit.
If necessary, place lashing straps under the unit to make it easier to lift and carry.
If the heat pump has already been installed, start by checking that its electrical
supply is not live. Then, reduce the pressure of the water and brine circuits to near
atmospheric pressure (gauge pressure: 0 bar), and close all external shut-off valves.
1. Remove the device’s front panel (MFC, thumbscrews).
2. Open the switchboard cover, and remove it from the top of the compressor unit (TC,
Torx T25 screws).
3. Open the front panel of the compressor unit (FC, Torx 25 screws).
4. Disconnect the in-line heater’s quick disconnect connector (X1EB203).
● When unplugging connectors, grab the connector by the body, not the cable. Be
careful not to pull the cables out of the connectors.
● The connector has a locking plate that can be opened with a slot-head
screwdriver.
5. Disconnect the domestic hot water sensor (TE266) from terminal block X3’s
terminals 1 and M. Alternatively, pull the sensor probe out of the sensor pocket in
the lower section of the domestic hot water tank.
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M8006 2123EN
