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6 Construction
B
2
C
1
Ball valve with gravity brake
2
Ball valve (return)
3
Circulation pump
4
Thermostatic mixing valve
5
Bypass connection pipe
6
Wall bracket
7
Distance pipe
A
Supply outlet (heating circuit)
B
Return inlet (heating circuit)
C
Return outlet (boiler circuit)
D
Supply inlet (boiler circuit)
1) see 7.4 on page 7
6
A
6
1
7
3
5
4
D
(supply)
1)
7 Installation and commissioning
Electricity!
Risk of death from electric shock.
• Work on parts carrying live voltage must only
be carried out by trained electricians.
• Disconnect the power supply of the system
and secure it against being switched back on
before carrying out any installation, mainte-
nance, cleaning or repair work.
The installation and commissioning of the
pump group must only be carried out by
trained personnel who have been authorized
by the manufacturer.
Take care to adhere to the specified
installation positions and flow directions of
the individual components to be replaced
during repair or replacement work!
Material damage!
A water hammer may occur if the stop valve
is opened quickly.
• Always open the stop valve slowly and in a
controlled way.
HKF25-IM-DE-W-UK-11-2020-Rev.0 | Part no. 10027337
ENGLISH
EN
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