AIT HSDV 12.1M3, Operating Manual

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Subject to technical amendments without prior notice | 83059300iUK | ait-deutschland GmbH
10. Insert the U-clip (②) into the base of the valve mo-
tor (③) .
2
3
11. Ensure that the U-clip has latched into position
correctly:

Valve motor sits securely on the 3-way switch-
ing valve.

Both prongs of the U-clip sit on the lug.

The tips of the U-clip are not visible more than
approx. 2 mm.
12. Close the vent valve (①) on the 3-way switching
valve.
1
9.3 Flushing, filling and venting
the domestic hot water tank
IMPORTANT
Before flushing and filling the domestic hot water
tank, the outlet pipe of the safety valve must be con-
nected. The set pressure of the safety valve must not
be exceeded.
1. Open the domestic cold water supply valve on the
domestic hot water tank.
2. Open the domestic hot water valves at the tapping
points.
3. Flush the domestic hot water tank until no more air
discharges from the valves at the tapping points.
4. Close the domestic hot water valves at the tap-
ping points.
10 Insulate hydraulic connections
Insulate hydraulic lines in accordance with local regu-
lations.
1.
Open shut-off devices.
2. Perform a pressure test and check for leaks.
3. Insulate external piping on site.
4.
Insulate all connections, fittings and pipes.