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operAtion
generAl informAtion
1.
General information
This accessory installation guide is aimed at specialist technicians.
For installing the heat pump or similar items, see the additional
operating and installation instructions.
Please read
Read these instructions carefully before use and keep
them in a safe place. If you pass on the equipment to
another user, give them the instructions as well.
1.1
Explanation of symbols
Symbols in the documentation:
This documentation contains symbols and highlights. These have
the following meanings:
Beware of injury
Indication of possible risk of injury to the technician or
user, and possible damage to the device.
Beware of electrocution
Beware of burns and scalding
Beware of damage
!
Indicates a potentially dangerous situation which might
occur while installing or operating the device and could
damage the device or cause environmental or financial
harm.
Please read
Read these instructions carefully before use and keep
them in a safe place. If you pass on the equipment to
another user, give them the instructions as well.
2.
Safety
2.1
Proper use
The 3-way switching valve distributes and regulates the flow in
STIEBEL ELTRON or Tecalor heat pump systems. Any different or
extended use is considered improper, especially use with other
media to be heated. Proper use also includes observing the instal-
lation instructions. Only use the device for the purpose stated by
the manufacturer and do not make any modifications to it.
This appliance is designed for domestic use. It can be used safely
by untrained persons. The appliance can also be used in a non-
domestic environment, e.g. in a small business, as long as it is
used in the same way.
10 |
2.2
Safety instructions
Observe the following safety instructions and regula-
tions.
Heat pump systems and accessories may only be installed by a
recognised specialised company.
The qualified technician is responsible for observing all applicable
regulations during installation and commissioning.
Only operate the device when it is fully installed with all its safety
equipment.
Beware of electrocution
Switch off the power supply immediately if cables are
damaged. Make sure it is secured against being switched
on again unintentionally.
Beware of electrocution
Make sure all cable entries are fitted with the appropri-
ate protection class.
Beware of burns and scalding
Before working on the system, let the pipes on the rel-
evant section cool down as necessary and reduce the
system pressure to ambient pressure.
Beware of injury
The appliance may be used by children aged 8 and up
and persons with reduced physical, sensory or mental
capabilities or a lack of experience provided that they
are supervised or they have been instructed on how to
use the appliance safely and have understood the resul-
ting risks. Children must never play with the appliance.
Children must never clean the appliance or perform user
maintenance unless they are supervised.
Beware of damage
!
The 3-way switching valve is designed for use in STIEBEL
ELTRON or Tecalor heat pump systems and may not be
used for applications outside the stated range, particu-
larly in aircraft or other means of transport.
3.
Device description
3.1
Overview of models and combination options
model
order no.
HUV 1
247420
HUV 2
223391
HUV 65
227425
HUV 80
227426
3.2
Scope of delivery
- 3-way switching valve
- Servo drive
- 3 x counter screws G1
1
/
2
- 3 x counter screws G2
3
/
" x 2" (HUV 2 only)
4
The servo drive is delivered already fitted to the 3-way switching
valve.
" x 1" (HUV 1 only)
HUV 1/2/65/80
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