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1
Please read immediately
1.1 Important information
ATTENTION!
Devices must always be disconnected from the power supply before
electrical work is carried out.
ATTENTION!
Work must only be carried out by qualified personnel.
ATTENTION!
In order to ensure fault-free functioning of the device(s), the instructions
given in the following text must be observed.
ATTENTION!
The hydraulics must be set up in compliance with these specifications.
ATTENTION!
Fig. 4:•shows the position of connections (A) ; (B) on the heat exchanger
of the heat pump.
1.2 Intended use
This device is only intended for use as specified by the manufac-
turer. Any other use beyond that intended by the manufacturer is
prohibited. This requires the user to abide by the manufacturer's
product information. Please refrain from tampering with or alter-
ing the device.
1.3 Legal regulations and directives
Construction and design fulfil all valid EU directives, DIN and
VDE regulations.
When connecting the actuator to the power supply, the relevant
VDE, EN and IEC standards must be fulfilled.
Persons, especially children, who are not capable of operating
the device safely due to their physical, sensory or mental abilities
or due to their inexperience or lack of knowledge, must not oper-
ate this device without supervision or instruction by the person in
charge.
Children must be supervised to ensure that they do not play with
the device.
The connection requirements described in these instruc-
tions must be observed.
EN-2
All manuals and user guides at all-guides.com
452163.66.30 · FD 9801
ATTENTION!
Provision of a dirt trap (mesh size 0.6 mm) is recommended at a suitable
location (see Fig. 5:•).
ATTENTION!
Before start-up, always ensure that the operating switch is in position 4
(see Fig. 7:•). Undesired changes to the heat pump's operating state may
result if this is not observed.
ATTENTION!
All components must be installed in a dry and frost-free location.
ATTENTION!
Electrical wiring must only be carried out by authorised persons. The
applicable regulations must be observed.
ATTENTION!
If a dual differential pressureless manifold is to be used, the return sensor
must be wired according to the following instructions (see Fig. 10:•).
VWU 65 - VWU 80