Vaillant aroTHERM VWL 85/2, aroTHERM VWL 115/2 Instructions For Use Manual
For the operator
Instructions for use
aroTHERM
VWL 85/2; VWL 115/2
UK
Instructions for use
Publisher/manufacturer
Vaillant GmbH
Berghauser Str. 40 D-42859 Remscheid
Telefon 021 91 18‑0 Telefax 021 91 18‑28 10
info@vaillant.de www.vaillant.de
Contents
2 Instructions for use aroTHERM 0020151761_00
Contents
1 Safety .................................................................... 4
1.1 Action-related warnings ......................................... 4
1.2 General safety information .................................... 4
1.3 Intended use.......................................................... 9
1.4 CE label ............................................................... 10
2 Notes on the documentation ............................ 11
2.1 Observing other applicable documents ............... 11
2.2 Storing documents............................................... 11
2.3 Applicability of the instructions ............................ 11
3 Product description........................................... 12
3.1 Design of the heat pump system ......................... 12
3.2 Type designation and serial number ................... 14
3.3 Overview of the operator control elements of
the VWZ AI heat pump control module................ 14
3.4 Digital Information and Analysis System (DIA).... 14
4 Operation............................................................ 16
4.1 Operating concept ............................................... 16
4.2 Basic display........................................................ 17
4.3 Operating levels................................................... 17
4.4 Design of the menu.............................................. 18
4.5 Live Monitor (status codes) ................................. 19
4.6 Displaying the building circuit pressure ............... 19
4.7 Reading the operating statistics .......................... 19
4.8 Displaying contact data........................................ 19
4.9 Displaying the serial number and article
number................................................................. 19
4.10 Setting the display contrast ................................. 19
4.11 Setting the language............................................ 20
5 Operation............................................................ 20
5.1 Switching the product on/off ................................ 20
5.2 Activating frost protection .................................... 20
5.3 Setting the target feed temperature in heating
mode.................................................................... 20
5.4 Setting a room thermostat or weather
compensator........................................................ 20
5.5 Checks and maintenance carried out by the
operator ............................................................... 21
5.6 Having the product temporarily
decommissioned.................................................. 21
6 Troubleshooting ................................................ 22
6.1 Reading the fault message.................................. 22
6.2 Detecting and rectifying faults ............................. 23
7 Decommissioning.............................................. 24
7.1 Having the product permanently
decommissioned.................................................. 24
8 Recycling and disposal..................................... 24
8.1 Disposing of the packaging ................................. 24
8.2 Disposing of the product and accessories........... 24
8.3 Arranging disposal of coolant .............................. 24
Contents
0020151761_00 aroTHERM Instructions for use 3
9 Guarantee and customer service..................... 24
9.1 Guarantee............................................................ 24
9.2 Customer service................................................. 25
Index ....................................................................................26
1 Safety
4 Instructions for use aroTHERM 0020151761_00
1 Safety
1.1 Action-related warnings
Classification of action-related warnings
The action-related warnings are classified in
accordance with the severity of the possible
danger using the following warning signs and
signal words:
Warning symbols and signal words
Danger!
Imminent danger to life or risk of
severe personal injury
Danger!
Risk of death from electric shock
Warning.
Risk of minor personal injury
Caution.
Risk of material or environmental
damage
1.2 General safety information
1.2.1 Danger due to incorrect handling
▶ Read through these instructions carefully.
▶ When using the product, observe the gen-
eral safety information and warnings.
▶ When using the product, observe all applic-
able national regulations .
1.2.2 Risk of death due to explosions and
scaldings from brine fluid
The brine fluid ethylene and propylene glycol
is extremely flammable, both as liquid and
steam. A potentially explosive combination of
steam/air may form.
▶ Keep away from heat, sparks, naked
flames and hot surfaces.
▶ Prevent steam/air mixtures from forming.
Keep brine fluid vessels closed.
▶ Observe the safety data sheet that accom-
panies the brine fluid.
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1.2.3 Danger due to improper use
There is a risk of injury or death to the user or
others, or of damage to the product and other
property in the event of improper use or use
for which it is not intended.
Only use the product in accordance with the
provisions.
1.2.4 Preventing the risk of injury from
corrosive brine fluid
The brine fluid ethylene glycol is harmful to
health.
▶ Avoid contact with the skin and eyes.
▶ Always wear gloves and protective
goggles.
▶ Do not inhale or swallow.
▶ Observe the safety data sheet that accom-
panies the brine fluid.
1.2.5 Preventing the risk of injury due
to scalding from hot and cold
components
Particularly in the coolant circuit, the components of the heat pump can reach high temperatures or extremely low temperatures.
▶ Do not touch any uninsulated pipelines in
any part of the heating installation.
▶ Do not remove any casing sections.
1.2.6 Risk of being scalded by hot
drinking water
There is a risk of scalding at the hot water
draw-off points if the hot water temperatures
are greater than 50 °C. Young children and
elderly persons are particularly at risk, even at
lower temperatures.
▶ Select the temperature so that nobody is at
risk.
1 Safety
6 Instructions for use aroTHERM 0020151761_00
1.2.7 Risk of death due to lack of safety
devices
A lack of safety devices (e.g. expansion relief
valve, expansion vessel) can lead to potentially fatal scalding and other injuries, e.g. due
to explosions.
▶ Have your competent person check that
all required isolator devices are present in
your heating installation.
1.2.8 Preventing the risk of injury from
freezing as a result of touching
coolant
The heat pump is delivered with an operational filling of R410A coolant. This is a
chlorine-free coolant which does not affect
the Earth's ozone layer. R410A is neither a
fire hazard nor an explosion risk. Escaping
coolant may cause freezing if the exit point is
touched.
▶ If coolant escapes, do not touch any com-
ponents of the heat pump.
▶ Do not inhale any steam or gases that es-
cape from the coolant circuit as a result of
leaks.
▶ Avoid skin or eye contact with the coolant.
▶ In the event of skin or eye contact with the
coolant, seek medical advice.
1.2.9 Danger due to changes to the
product environment
There is a risk of injury or death to the user
or others, or of damage to the product and
other property, in the event of changes to the
product environment.
Changes must not be made to the following
equipment:
– The heat pump
– The heat pump environment
– The drain line and expansion relief valve
for the heating water
– The water and electricity supply lines
– The heat pump's condensate drain pipe-
work
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– The structural conditions that may affect
the operational safety of the product.
1.2.10 Risk of injury and material damage
due to incorrect maintenance or
repairs
As a result of unauthorised interference or
tampering with the product or parts of the
system, the operational safety of the product
can no longer be ensured and the guarantee
therefore becomes void.
▶ Never interfere or tamper with the product
or other parts of the system.
▶ Never try to carry out maintenance work or
repairs on the product yourself.
▶ Do not damage or remove any seals on
components. Only qualified competent
persons and factory service personnel are
authorised to make modifications to sealed
components.
▶ Have inspection and maintenance work
carried out by a competent person.
1.2.11 Frost damage due to an unsuitable
installation site
Frost poses a risk of damage to the product
and the whole heating installation.
▶ You should therefore ensure that the heat-
ing installation always remains in operation during freezing conditions and that all
rooms are sufficiently heated.
Even if rooms, or the whole dwelling, are not
in use for certain periods, the heating must
remain in operation.
Frost protection and monitoring devices are
only active while the product is connected
to the power supply. The product must be
connected to the power supply.
1.2.12 Frost damage caused by insufficient
room temperature
If the room temperature is set too low in individual rooms, it cannot be ruled out that sections of the heating installation might be damaged by frost.
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8 Instructions for use aroTHERM 0020151761_00
▶ If you are going to be away during a cold
period, ensure that the heating installation
remains in operation and that the rooms
are sufficiently heated.
▶ You must observe the frost protection in-
structions.
1.2.13 Frost damage caused by a power
cut
During installation, your competent person
connected your product to the power mains.
If the power supply is cut, it is possible that
parts of the heating installation may become
damaged by frost. If you want to use an emergency power generator to maintain the operational readiness of the product during a power
cut, note the following:
▶ Contact your competent person for advice
on installing an emergency power generator.
▶ Ensure that the technical values of this
generator (frequency, voltage, earthing)
match those of the power mains.
1.2.14 Malfunction caused by incorrect
system pressure
To avoid operating the system with too little
water and thus prevent resulting damage,
note the following:
▶ Check the system pressure of the heating
installation at regular intervals.
▶ You must observe the system pressure
instructions.
1.2.15 Avoid environmental damage
caused by escaping coolant
The heat pump contains R410A coolant.
The coolant must not be allowed to escape
into the atmosphere. R410A is a fluorinated
greenhouse gas covered by the Kyoto Protocol, with a GWP of 1725 (GWP = Global
Warming Potential). If it escapes into the
atmosphere, its impact is 1725 times stronger
than the natural greenhouse gas CO2.
Before the heat pump is disposed of, the
coolant it contains must be completely
drained into a suitable vessel so that it can
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0020151761_00 aroTHERM Instructions for use 9
then be recycled or disposed of in accordance
with the regulations.
▶ Ensure that only officially certified com-
petent persons with appropriate protective
equipment perform maintenance work or
access the coolant circuit.
▶ The coolant in the heat pump must only be
recycled or disposed of by certified competent persons in accordance with the regulations.
1.3 Intended use
1.3.1 State-of-the-art technology
The Vaillant aroTHERM heat pump systems
are constructed using state-of-the-art technology in accordance with the recognised safety
rules and regulations. However, there is a risk
of injury or death to the user or others, or of
damage to the product and other property, in
the event of improper use or use for which it
is not intended.
1.3.2 User qualification
This product can be used by children over
eight years old and also by persons with limited physical, sensory or mental capabilities
or insufficient experience and/or knowledge if
they are supervised or have been provided
with instructions on how to safely use the
product, and they understand the risks resulting from using the product. Children must
not play with the product. Cleaning and user
maintenance work must not be carried out by
children unless they are supervised.
1.3.3 Intended use
The Vaillant aroTHERM heat pump is designed for use as a heat generator for closed
heating installations. Operation of the pump
outside the application limits results in the
heat pump being switched off by the internal
control and safety devices.
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