Immergas RAPAX 100 V2 Operating instructions

RAPAX 100 V2
IE
Instruction and
recommendation booklet
*1.041494ENG*

e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its technical and commercial
documents without forewarning.
Dear Customer,
Our compliments for having chosen a top-quality Immergas product, able to ensure well-being and safety for a long period of time. As an Immergas Customer,
you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your boiler. Read the following pages carefully:
you will be able to draw useful tips on the correct use of the device, compliance of which will conrm your satisfaction with the Immergas product.
For assistance and routine maintenance, contact Authorised Service Centres: they have original spare parts and are specically trained directly by the manufacturer.
General recommendations
All Immergas products are protected with suitable transport packaging.
e material must be stored in a dry place protected from the weather.
e instruction booklet is an integral and essential part of the product and must be given to the new user in the case of transfer or succession of ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instruction booklet provides technical information for installing Immergas boilers. As for the other issues related to boiler installation (e.g. safety in the
workplace, environmental protection, accident prevention), it is necessary to comply with the provisions specied in the regulations in force and with the
principles of good practice.
In compliance with the legislation in force, the systems must be designed by qualied professionals, within the dimensional limits established by the Law.
Installation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer's instructions and by an authorised
company, which has the specic technical skills in the system sector, as provided for by Law.
Improper installation or assembly of the Immergas device and/or components, accessories, kits and devices can cause unexpected problems for people, animals
and objects. Read the instructions provided with the product carefully to ensure proper installation.
Maintenance must be carried out by an authorised company. e Authorised Service Centre represents a guarantee of qualication and professionalism.
e device must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore potentially dangerous.
If errors occur during installation, operation and maintenance, due to non-compliance with technical laws in force, standards or instructions contained in
this booklet (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages
and the device warranty is invalidated.

5 Recommendations - maintenance and
repairs.................................................................17
5.1 Advice for the user............................................17
5.2 Household maintenance. .................................17
5.3 Maintenance by approved professionals........17
5.4 Troubleshooting support. ................................18
5.5 Work on the water heater.................................19
5.6 Quick fault diagnosis for use carried out by a
professional technician.....................................20
5.7 Aer-sales service. ............................................20
5.8 Scope of application of the warranty..............20
5.9 Declaration of conformity................................20
6 Product che (in compliance with Regulation
812/2013). ..........................................................21
7 Parameters for lling in the package che.....22
4 Parameter settings / Use...................................15
4.1 remote panel......................................................15
4.2 Description of the symbols..............................15
4.3 Main menu.........................................................15
4.4 System settings. .................................................16
4.5 Parameters to be adjusted upon installation. 16
4.6 Selecting the operating mode..........................16
4.7 Display the information...................................16
1 Important recommendations............................5
1.1 Warnings.............................................................. 5
1.2 installation. ..........................................................5
1.3 Hydraulic connection.........................................5
1.4 Wiring. .................................................................5
2 Introducing the product. ...................................6
2.1 Important advice................................................. 6
2.2 Technical specications...................................... 6
2.3 Dimensions and components............................7
3 Installation. .......................................................... 9
3.1 Choosing the place of installation.................... 9
3.2 Product installation. .........................................11
3.3 Hydraulic connection.......................................12
3.4 Air intake connection.......................................12
3.5 Electrical connection........................................12
3.6 Water heater wiring diagram...........................14
3.7 Commissioning.................................................14
INDEX

5
connected, to prevent any risk of injury
due to electric shocks.
e following must be provided up-
stream of the electrical system:
- A circuit breaker or 16A multi-pole
fuse with contacts compliant with
regulations in force.
- A 30 mA dierential circuit breaker.
Should the power cable be found to
be damaged for any reason, it must be
replaced by the Aer-sales Support,
and/or in any case by skilled and qual-
ied sta.
e water heater must be connected to
earth according to the methods set out
by the regulations in force.
A special terminal, suitably marked
is provided for the specic purpose.
is manual is supplied jointly with the
water heater; in the event of loss it may
also be obtained from the Authorised
area Support service or be downloaded
from the suitable website.
Caution: failure to comply with rec-
ommended installation procedures,
especially a room volume below the 20
m3minimum, may signicantly reduce
system performance.
- It is recommended to provide suita-
ble shut-o valves on the hydraulic
connection to allow for any routine
and extraordinary maintenance oper-
ations which might require emptying/
lling the water heater.
- In order to prevent any stability and
safety issues, it is obligatory to secure
the water heater on the wall using the
fastening anchors supplied.
1.3 HYDRAULIC CONNECTION.
It is mandatory to install a safety device,
set to be triggered at 0.7 MPa (7 bars)
(not supplied with the water heater),
sized 3/4”, compliant with standard
EN1487 as amended and added, and
in any case compliant with local regu-
lations in force, to be tted to the cold
water inlet of the water heater.
e safety device must be protected
from ice.
e safety unit must be tted with a
discharge device (overpressure) to
be operated regularly to remove any
limestone deposits.
It must also be checked regularly to
ensure it is not blocked.
e pressure reducer (not supplied as
standard) is required when the water
mains pressure exceeds 0.5 MPa (5
bars) and must be mounted on the
main water supply line.
e safety unit must also be connected
to an open drain pipe, in a frost-free
environment, with a permanent down-
ward gradient, to remove any expan-
sion water from the heating process, or
drainage water from the water heater.
To perform any discharge operations
of the water heater, strictly adhere to
the following sequence:
- Disconnect the device from the elec-
trical supply voltage.
- Disconnect the device from the mains
water supply (cold water).
- Open the hot water tap.
- Actuate the discharge device of the
safety unit.
1.4 WIRING.
Before removing the cover of the water
heater, always ensure the power is dis-
1IMPORTANT RECOMMENDATIONS.
1.1 WARNINGS.
is device may only be used by adult
users whose physical, sensory or men-
tal abilities are not impaired.
Before using this device, this instruc-
tion booklet (User section) and/or the
operating instructions should be ready
by skilled technical sta.
Use by incompetent adult staff and
especially by children is forbidden
for safety reasons and due to issues of
correct device operation and warranty.
is device has been designed to serve
one residential housing unit only (and
similar) subject to assessment of the
energy requirement for domestic hot
water; it is not a heating system pursu-
ant to the legislation in force.
1.2 INSTALLATION.
Warning: due to its weight (57 kg), this
device must be handled with care to
avoid injury to persons or damage to
property and to the product itself. In-
stallation must therefore be performed
taking into account the following
instructions:
- Install the device in a frost-free room.
The warranty does not cover any
device breakdown caused by exces-
sive pressure due to the safety valve
blocking because of ice.
- Ensure the wall on which the device
is to be installed is suitable to with-
stand the device's own weight and
that of the water content (100 litres
approximately). It is recommended
to perform a structural assessment
by the designer of the dwelling.
- If the storage tank is mounted on a
false ceiling, under the roof or above a
living area, it is mandatory to install a
drip tray to be connected to the drain.
- Suitably aerate the installation room
in the event the device is to be in-
stalled in a room and/or in a position
where the ambient temperature is
always higher than 35°C.
- is device is intended for use up to
a maximum height of 2000 m.
- Position the device in an accessible
area and at such a distance from the
wall to permit correct maintenance /
accessibility (Paragraph 3.1).
- Refer to the installation diagrams
(Paragraph 3.1).

6
2-1
Safety directives. The installation work and
commissioning of thermodynamic water heaters
can be hazardous due to high pressure and live
electrical parts.
ermodynamic water heaters must be installed,
commissioned and serviced by trained and
qualied sta only.
Dimensions
Empty weight
Tank capacity
Hot + cold water tting
Anti-corrosion protection
Maximum operating pressure
mm
kg
l
bar
H 1234 x L 522 x D 538
57
100
3/4’’ M
Magnesium anode
8
Electrical connection (voltage/frequency)
Max total power absorbed by the device
Max power absorbed by heat pump
Power absorbed by auxiliary electrical unit
W
W
W
230 V single-phase 50 Hz
1550
350
1200
Setting range of the water temperature of the heat pump
Temperature range for using the heat pump (air temperature)
°C
°C
from 50 to 62 (temperature factory setting 52°C)
from -5 to +43
Diameter of intake and exhaust ducts
Air ow rate without ducts
Load losses acceptable on ventilation circuit, without aecting performance
mm
m3/h
Pa
125
160
25
R134a refrigerant charge
Coolant
Coolant mass
Coolant volume
Amount of hot water at 40°: V40td in 8h (HC) / 14h (HC+6h)
kg
kg/l
Ton CO2 Eq.
l
0.6
R134a
0.006
0.86
151 / 289
Coecient of performance (COP)
Power absorbed at steady speed (Pes)
Heating time(th)
Reference temperature(Tref)
Air ow rate
-
W
h.min
°C
m3/h
2.47 - M
20
7 h 27
52.8
162.7
Coecient of performance (COP)
Power absorbed at steady speed (Pes)
Heating time(th)
Reference temperature(Tref)
-
W
h.min
°C
2.75 - M
18
6 h 25
52.5
2.2 TECHNICAL SPECIFICATIONS.
e product warranty is rendered null and void
if the above instructions are not complied with.
e manufacturer declines any liability for any
faults to the product resulting from transport or
handling not complying with the above recom-
mendations.
Under no circumstances may this product be
stacked (Fig. 2-1).
2INTRODUCING THE PRODUCT.
2.1 IMPORTANT ADVICE.
Transport, handling and storage. e product
may be transported upright on a pallet, or rotated
by 90° on its side
The appropriate side is shown clearly on an
information label on the product packing box.
It is forbidden to transport the product lying on
its other sides as it could irreparably damage it.
Note: follow the transport and maintenance rec-
ommendations on the water heater’s packaging.
POSITIONS ALLOWED DURING TRANSPORT POSITIONS NOT ALLOWED DURING TRANSPORT

7
2-2
Key:
AC - Domestic hot water outlet 3/4” M
AF - Domestic cold water inlet 3/4” M
SC - Condensate drain  
2.3 DIMENSIONS AND COMPONENTS.

8
2-3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16 17
18
19
20
21
22
23
24
Key:
1 - Front cover
2 - Cover
3 - Rear cover
4 - Heating unit (Resistance + Anode)
5 - Casing cover
6 - Compressor casing
7 - Electrical resistance
8 - Compressor
9 - Fan casing
10 - Fan
11 - Fan support plate
12 - Front column
13 - Control unit
14 - Condenser 1.5-2.5-2.7F
15 - P.C.B.
16 - Cap
17 - Bottom part cap
18 - Water probe wiring 1
19 - PDC probe wiring 2
20 - Interface wiring
21 - Electrical integration
22 - Compressor wiring
23 - Fan wiring + terminal block
24 - Condenser 10F
Not shown: manual, dielectric connection, con-
densate draining pipe, safety unit.

9
3-1
Min.
120
mm
522 mm
Min. 400 mm
Min.
600 mm
>20 m3
Except for the volume of
bulky waste
Room temperature between 5 and
43°C, except for operation of the
water heater
Example of
installation without
ducts
Min.
200 mm
Note: observe the minimum distance indicated
to prevent air recirculation.
Note: observe a space of 450 mm in front of the
electrical appliance, so that the water heater can
be accessed for maintenance work.
- Laundry room: dehumidifying the room
and recovery of waste calories from washing
machines and tumble-dryers.
- Room in basement: recovery of free calories
released by the oor and walls of the base-
ment.
RECOMMENDED CONFIGURATIONS.
• 1st conguration: installation without duct in
unheated room (Volume > 20 m3) (Fig. 3-1).
INTERNAL/INTERNAL parameter (Para-
graph 4.5).
Examples of unheated rooms:
- Garage: Recovery of free calories released by
car engine when turned o aer running, or
other electrical appliances operating.
Resistance of the wall • Withstands a load of at least 300 kg (water heater xing surface)
Note: only install a water storage tank under the water heater when this is positioned above in
residential buildings.
e installation area shall be suitable for protection index IPX1B, as set forth in IEC 64-8
Non-ducted or
semi-ducted conguration
Ducted conguration
Type of installation room
Room examples
Volume of room where air is extracted
Temperature of water heater installation
room
Air inlet temperature
Ceiling height
Surface area required
• Unheated room, characterised by temperature
exceeding 5°C and preferably insulated from
the home's heated rooms.
• Recommended room = underground or base-
ment, room where the temperature is higher
than 10°C all year round.
• garage, boiler room (with the exception of
rooms where type B generators are installed),
basement oor, ironing room, etc.
• Volume > 20 m3
• from 5°C to 43°C.
• -5°C to 43°C.
• > 2.00 m.
• 2.10 m2.
• e wall must be perpendicular.
• Room that is at least frost-free.
• Recommended room = living space (the heat
loss from the water heater is not wasted), close
to the outer walls.
• Do not install close to sleeping areas because of
the noise produced.
• laundry room, cellar, cupboard in entrance hall,
etc.
• /
• > 1°C.
• -5°C to 43°C.
• > 2.00 m.
• 2.10 m2.
• e wall must be perpendicular.
3INSTALLATION.
3.1 CHOOSING THE PLACE OF
INSTALLATION.

10
3-3
3-2
Room temperature between 5 and
43°C, except for operation
of the water heater
Mandatory air
inlet
Ø 125 mm
Min.
120
mm
522 mm
Min.
670 mm
Duct on air outlet
Example of
installation with 1
exhaust duct
Min.
200 mm
Possible consequence:
- In the event of installation with air intake in
the same room and expulsion through a duct,
the ventilation openings must be sized with
a minimum diameter of 125 mm.
Note: in winter, the inlet air will be colder than
that discharged by the water heater, which will
increase room cooling.
Note: observe a space of 450 mm in front of the
electrical appliance, so that the water heater can
be accessed for maintenance work.
Note: observe a space of 450 mm in front of the
electrical appliance, so that the water heater can
be accessed for maintenance work.
CONFIGURATIONS IN CERTAIN CONDI-
TIONS (subject to assessment).
• Installation in unheated room, with 1 duct
only (volume > 20 m3) (Fig. 3-3).
INTERNAL/EXTERNAL parameter (Para-
graph 4.5).
Min.
120
mm
522 mm
Min.
670 mm
Room at minimum
antifreeze
Example of
installation with
ducts
Min.
100 mm
• 2nd conguration: installation in a heater or
unheated room, with ducts (Fig. 3-2).
EXTERNAL/EXTERNAL parameter (Par-
agraph 4.5).
Recommendations:
- Comply with maximum duct lengths (Para-
graph 3.4).
- Use rigid or semi-rigid pipes.
- Provide air inlet and outlet grids to avoid
ingress of foreign bodies. Note: manually
shuttered air inlet and outlet grids are for-
bidden.