Immergas VICTRIX HYBRID User manual

VICTRIX HYBRID
IE
Instruction booklet and
warning
Installer
User
Maintenance Technician
*1.046309ENG*
*1.046309ENG*

2

3
INDEX
Dear Customer,................................................................................. 4
General recommendations.............................................................. 4
Safety symbols used.......................................................................... 5
Personal protective equipment....................................................... 5
1 Installation............................................................................ 6
1.1 Description of the product................................................. 6
1.2 Indoor Unit Installation recommendations..................... 6
1.3 Victrix Hybrid Installation................................................. 9
1.4 Outdoor Unit Installation................................................. 14
1.5 Indoor Unit main dimensions. ........................................ 15
1.6 Minimum indoor Unit installation distances ................ 15
1.7 Installation of the outdoor unit in the recessed frame
(Optional)........................................................................... 16
1.8 Indoor unit connection Unit............................................ 17
1.9 Indoor Unit gas connection. ............................................ 17
1.10 Hydraulic connection........................................................ 18
1.11 Electrical power supply connection. ............................... 19
1.12 Control panel main dimensions. ..................................... 20
1.13 Control panel installation operations. ............................ 20
1.14 External temperature probe. ............................................ 20
1.15 room chrono-thermostats (Optional)............................. 21
1.16 230 VAC congurable outlet. ........................................... 21
1.17 Immergas ue systems...................................................... 22
1.18 Tables of resistance factors and equivalent lengths of
“green range” ue system components. .......................... 23
1.19 Outdoor installation in partially protected area............ 25
1.20 Internal installation using a recessed frame with
direct air intake. ................................................................. 27
1.21 Concentric horizontal kit installation............................. 28
1.22 Concentric vertical Kit installation. ................................ 30
1.23 Separator kit installation................................................... 32
1.24 Adaptor C9 kit installation............................................... 34
1.25 Ducting of ues or technical slots. .................................. 36
1.26 Conguration type B, open chamber and fan assisted
for indoors. ......................................................................... 37
1.27 Flue exhaust to ue/chimney............................................ 37
1.28 Flues, chimneys and chimney caps. ................................ 37
1.29 Water treatment system lling......................................... 38
1.30 System lling. ..................................................................... 38
1.31 Filling the condensate drain trap..................................... 38
1.32 Gas system start-up. .......................................................... 38
1.33 Commissioning of the combustion unit (Ignition)....... 39
1.34 Kits available on request. .................................................. 39
1.35 Circulation pump and load losses. .................................. 40
1.36 Indoor unit main components......................................... 42
2 Instructions for use and maintenance............................. 43
2.1 General warnings............................................................... 43
2.2 Cleaning and maintenance............................................... 44
2.3 Control panel...................................................................... 45
2.4 Operation overview. .......................................................... 45
2.5 Comfort / economy / manual operation......................... 46
2.6 Operation with external probe (Audax.DK4)................ 46
2.7 Clock and programs.......................................................... 46
2.8 Settings menu..................................................................... 47
2.9 Indoor Unit Control panel. .............................................. 50
2.10 Use of the indoor unit....................................................... 51
2.11 Indoor unit information menu........................................ 51
2.12 Faults and malfunctions signals from the Control
Panel. ................................................................................... 52
2.13 Switching o....................................................................... 57
2.14 Restore central heating system pressure......................... 57
2.15 Draining the system. ......................................................... 57
2.16 Emptying the D.H.W. circuit............................................ 57
2.18 Antifreeze protection. ....................................................... 57
2.19 Cleaning the case. .............................................................. 57
2.20 Decommissioning.............................................................. 57
3 Instructions for maintenance and
initial check. ....................................................................... 58
3.1 General warnings............................................................... 58
3.2 Initial check. ....................................................................... 58
3.3 Yearly Victrix Hybrid check and maintenance.............. 59
3.4 Indoor Unit Hydraulic Diagram...................................... 61
3.5 Indoor Unit Electrical Diagram....................................... 62
3.6 Programming Victrix Hybrid. ......................................... 63
3.7 Troubleshooting................................................................. 67
3.8 Converting the boiler to other types of gas.................... 67
3.9 Indoor unit fan revs number calibration........................ 67
3.10 Indoor Unit CO2adjustment............................................ 68
3.11 Checks following conversion to another type of gas..... 68
3.12 Programming the indoor unit P.C.B.. ............................. 69
3.13 Password-protected special functions............................. 72
3.14 Automatic vent function (dI)........................................... 72
3.15 Flue installation (Fu)......................................................... 72
3.16 Maintenance function (MA)............................................ 72
3.17 Screed heater function. ..................................................... 73
3.18 “Chimney sweep function”................................................73
3.19 Pump anti-block function. ............................................... 74
3.20 ree-way anti-block system............................................ 74
3.21 Radiators antifreeze function........................................... 74
3.22 Room anti-freeze function. .............................................. 74
3.23 Logic of operation.............................................................. 75
3.24 Indoor Unit casing disassembly....................................... 76
4 Technical data..................................................................... 78
4.1 Indoor Unit variable thermal output. ............................. 78
4.2 Combustion parameters. .................................................. 78
4.3 Indoor Unit Data Table..................................................... 79
4.4 Outdoor Unit technical data tables. ................................ 80
4.5 Product che (in compliance with Regulation
811/2013)............................................................................ 81
4.6 Parameters for lling in the package che. .................... 83

4
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.
e company IMMERGAS S.p.A., with registered oce in via Cisa Ligure 95 42041 Brescello (RE), declares that the design, manu-
facturing and aer-sales assistance processes comply with the requirements of standard UNI EN ISO 9001:2015.
For further details on the product CE marking, request a copy of the Declaration of Conformity from the manufacturer, specifying the
appliance model and the language of the country.
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 Authorised Aer-Sales Technical Assistance Centre, 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 Technical Service Centres: they have original spare parts and are specically
trained directly by the manufacturer.
GENERAL RECOMMENDATIONS
is book contains important information for the:
Installer (section 1); For the installation of the AUDAX.DK4 outdoor unit see the relevant instruction manual;
User (section 2);
Maintenance Technician (section 3).
• e user must carefully read the instructions in the specic section (section 2).
• e user must limit operations on the appliance only to those explicitly allowed in the specic section.
• e appliance must be installed by qualied and professionally trained personnel.
• 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.
• 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 professionally qualied sta, meaning sta with specic technical skills in the plant
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.
• is instructions manual provides technical information for installing Immergas products. As for the other issues related to the
installation of products (e.g. safety at the workplace, environmental protection, accident prevention), it is necessary to comply
with the provisions of the standards in force and the principles of good practice.
• All Immergas products are protected with suitable transport packaging.
• e material must be stored in a dry place protected from the weather.
• Damaged products must not be installed.
• Maintenance must be carried out by skilled technical sta. For example, the Authorised Immergas Service Centre that represents
a guarantee of qualications 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 con-
tractual and extra-contractual liability for any damages and the device warranty is invalidated.

5
SAFETY SYMBOLS USED.
GENERIC HAZARD
Strictly follow all of the indications next to the pictogram. Failure to follow the indications can generate hazard situa-
tions resulting in possible harm to the health of the operator and user in general.
ELECTRICAL HAZARD
Strictly follow all of the indications next to the pictogram. e symbol indicates the appliance’s electrical components
or, in this manual, identies actions that can cause an electrical hazard.
MOVING PARTS
e symbol indicates the appliance’s moving components that can cause hazards.
HOT SURFACES
e symbol indicates the appliance’s very hot components that can cause burns.
SHARP SURFACES
e symbol indicates the appliance’s components or parts that can cause cuts if touched.
EARTH TERMINAL CONNECTION
e symbol identies the appliance’s earth terminal connection point.
READ AND UNDERSTAND THE INSTRUCTIONS
Read and understand the appliance’s instructions before performing any operation, carefully following the indications
provided.
INFORMATION
Indicates useful tips or additional information.
SAFETY GLOVES
PERSONAL PROTECTIVE EQUIPMENT.
SAFETY GOGGLES
SAFETY FOOTWEAR
e user must not dispose of the appliance at the end of its service life as municipal waste, but send it to appro-
priate collection centres.

6
INSTALLATORE
UTENTEMANUTENTORE
1
OK
1INSTALLATION.
1.1 DESCRIPTION OF THE PRODUCT.
Victrix Hybrid is a hybrid heat pump consisting of:
- Victrix 24 HY Hybrid Indoor Unit;
- Outdoor Unit Audax.DK4.
- control panel (supplied in the accessories group of the indoor
unit)
e Victrix Hybrid heat pump was designed only for heating and
production of domestic hot water for domestic use and similar
purposes.
In order to operate properly, the Victrix 24 HY indoor unit must
be paired with an Audax DK4 outdoor unit; as such, all the pro-
visions regarding the safety and use of the control panel, indoor
and outdoor units must be respected.
1.2 INDOOR UNIT INSTALLATION
RECOMMENDATIONS.
ATTENTION:
operators who install and service the
appliance must wear the personal
protective equipment required by ap-
plicable law.
e Victrix 24HY indoor unit was designed only for
wall-mounted installation.
e place of installation of the indoor unit and relative
Immergas accessories must have suitable features
(technical and structural), such as to allow for (al-
ways in safe, ecient and comfortable conditions):
- installation (according to the provisions of technical legisla-
tion and technical regulations);
- maintenance operations (including scheduled, periodic,
routine, special);
- removal (to outdoors in the place for loading and transport-
ing the appliances and components) as well as the eventual
replacement of those with appliances and/or equivalent
components.
e wall surface must be smooth, without any protrusions or
recesses enabling access to the rear part. ey are not designed
to be installed on plinths or oors (Fig. 1).
By varying the type of installation the classication of the boiler
also varies, precisely:
- Type B23 or B53 if installed using the relevant terminal for air
intake directly from the room in which the indoor unit has
been installed.
- Type C if installed using concentric pipes or other types of
pipes envisioned for the sealed chamber indoor units for
intake of air and expulsion of ue gas.
Note: the classication of the indoor unit is provided in the
depictions of the various installation solutions shown on the
following pages.
Only professionally enabled companies are authorised to install
Immergas gas appliances.
Installation must be carried out according to regulation stand-
ards, current legislation and in compliance with local technical
regulations and the required technical procedure
ATTENTION:
It is forbidden to install appliances
removed from other systems. e ma-
nufacturer declines all liability in the event of
damage caused by appliances removed from
other systems or for any non-conformities with
such equipment.
ATTENTION:
check the environmental operating
conditions of all parts relevant to in-
stallation, referring to the values shown in the
technical data table in this booklet.

7
INSTALLATORE
UTENTEMANUTENTORE
ATTENTION:
Installation of the Victrix 24HY indoor
unit when powered by LPG must comply
with the rules regarding gases with a greater
density than air (remember, as an example,
that it is prohibited to install plants powered
with the above-mentioned gas in rooms where
the oor is at a lower quota than the country
level).
Before installing the indoor unit, ensure that it is
delivered in perfect condition; if in doubt, contact
the supplier immediately. Packing materials (staples,
nails, plastic bags, polystyrene foam, etc.) constitute a
hazard and must be kept out of the reach of children.
If the appliance is installed inside or between cabinets, ensure
sucient space for routine servicing; for minimum installation
distances, refer to Fig. 7.
It is just as important that the intake grids and exhaust
terminals are not obstructed.
It is recommended to check that no ue gas recircula-
tion is found in the air sample points (0.5% maximum
permitted CO2).
Keep all ammable objects away from the appliance (paper,
rags, plastic, polystyrene, etc.).
e minimum distance for exhaust pipes from ammable
materials must be at least 25 cm.
Do not place household appliances underneath the boiler as
they could be damaged if the safety valve intervenes, if the
drain trap is blocked, or if there are leaks from the hydraulic
connections; otherwise, the manufacturer cannot be held re-
sponsible for any damage caused to the household appliances.
For the aforementioned reasons, we recommend not placing
furnishings, furniture, etc. under the boiler.
In the event of malfunctions, faults or incorrect operation, turn
the appliance o immediately and contact an authorised com-
pany (e.g. the Immergas Technical Assistance Centre, which
has specically trained sta and original spare parts). Do not
attempt to modify or repair the appliance alone.
Any modication to the appliance that is not explicitly indicated
in this section of the booklet is forbidden.
Installation Standards:
-this indoor unit can be installed
outdoors in a partially protected
area. A partially protected area is one in
which the boiler is not exposed to the direct
action of the weather (rain, snow, hail, etc.).
is type of installation is only possible when
permitted by the laws in force in the appliance's
country of destination.
-Installation of gas appliances, ue exhaust
pipes and combustion air intake pipes is for-
bidden in places with a re risk (for example:
garages, closed parking stalls), and in poten-
tially dangerous places.
-Installation is prohibited on the verti-
cal projection of the cooking surface.
-Installation is forbidden in places/
rooms that constitute public areas of apart-
ment buildings, internal stairways or other
escape routes (e.g. oor landings, entrance
halls, etc.).
-Installation is also forbidden in places/rooms
that constitute public areas of apartment
buildings such as cellars, entrance halls, at-
tics, los, etc., unless otherwise provided for
by local regulations in force.
-ese boilers are not suitable for installation
on walls made of combustible material.
N.B.:installingthe wall recessedframekit mustguar-
antee theboilerstable,ecient support.e recessed
frame kit ensures appropriate support only if installed
correctly (according to the rules of good practice),
following the instructions on its instructions leaet.
e recessed frame for the boiler is not a supporting
structure and must not replace the wall removed. It is necessary
to position the boiler inside the wall. For safety reasons against
any leaks it is necessary to plaster the boiler housing in the brick
wall.

8
INSTALLATORE
UTENTEMANUTENTORE
N.B.: wall mounting of the indoor unit must
guarantee stable and efficient support for the
generator. e plugs (standard supply) are only to
be used to x the boiler to the wall; they only ensure
adequate support if inserted correctly (according
to technical standards) in walls made of solid or
semi-hollow brick or block. In the case of walls made from
hollow brick or block, partitions with limited static properties,
or in any case walls other than those indicated, a static test
must be carried out to ensure adequate support.
ese indoor units are used to heat water to below
boiling temperature in atmospheric pressure.
ey must be connected to a central heating system
and domestic hot water circuit suited to their perfor-
mance and capacity.
Riskofdamage due tocorrosioncaused byunsuitable
combustion air and environment.
Spray, solvents, chlorine-based detergents, paints, glue,
ammonium compounds, powders and similar cause
product and ue duct corrosion.
- Check that combustion air power supply is free from chlorine,
sulphur, powders, etc.
- Make sure that no chemical substances are stored in the place
of installation.
- If you want to install the product in beauty salons, paint
workshops, carpenter’s shop, cleaning companies or
similar, choose a separate installation area that ensures
combustion air supply that is free from chemical substances.
- Make sure the combustion air is not fed from chimneys that
were used with gas boilers or other heating devices. In fact, these
may cause an accumulation of soot in the chimney.
Risk of material damageaerusingspraysand liquids
to search for leaks
Leak sprays and liquids clog the reference hole P1 (Fig.
52) of the gas valve, damaging it irreparably.
During installation and maintenance, do not use spray
or liquids in the upper area of the gas valve (side referring to the
electric connections)
“Anti-legionella” heat treatment of the storage tank
(activated by the specic function present on the
predisposed thermoregulation systems): during this
stage, the temperature of the water inside the storage
tank exceeds 60°C with a relative risk of burns. Keep
this domestic hot water treatment under control (and
inform the users) to prevent unforeseeable damage to people,
animals, things. If required install a thermostatic valve on the
domestic hot water outlet to prevent scalding.
Filling the condensate drain trap.
On rst lighting of the boiler, ue gas
may come out from the condensate drain;
aer a few minutes’ operation, check that
this no longer occurs. is means that the drain
trap is lled with condensate to the correct level
preventing the passage of ue gas.
ATTENTION:
-Type B open chamber indoor units
must not be installed in places where
commercial, artisan or industrial activities
take place, which use products that may de-
velop volatile vapours or substances (e.g. acid
vapours, glues, paints, solvents, combustibles,
etc.), as well as dusts (e.g. dust deriving from
the working of wood, coal nes, cement, etc.),
which may be harmful for the components of
the indoor unit and jeopardise operation.
-Unless otherwise provided for by local reg-
ulations in force, congurations B23 and B53:
the boilers must not be installed in bedrooms,
bathrooms or bedsits. ey must neither be
installed in rooms containing solid fuel heat
generators nor in rooms communicating with
said rooms.
-e installation rooms must be permanently
ventilated, in compliance with the local reg-
ulations in force (at least 6 cm2for every kW
of installed heat input, except in the event of
any increases needed for electro-mechanical
vacuum cleaners or other devices that could
put the installation room under vacuum).
-Installation of appliances in B23 and B53 con-
guration is recommended in non-residential
premisesandwhich arepermanentlyventilated.
ATTENTION:
failure to comply with the above implies
personal responsibility and invalidates
the warranty.

9
INSTALLATORE
UTENTEMANUTENTORE
1.3 VICTRIX HYBRID INSTALLATION.
Victrix Hybrid must be installed as per the hydraulic diagram
(Fig. 2).
Basic requirements.
ATTENTION:
e minimum water content required
within the system is 20 litres; otherwise,
it will be necessary to install an inertial storage
tank (optional).
For proper system operation, make sure that
the minimum ow rate in operating conditions
never drops below 500 l/h.
ATTENTION:
When the circulation within each room
central heating loop is controlled by re-
motely operated valves, it is important
to guarantee the minimum water content (20
litres), even if all the valves are closed.
When the circulation within each or certain
room central heating loops is controlled by
remotely operated valves, it is important to
guarantee the minimum ow rate, even if all
the valves are closed. It is necessary to have
a loop that is always open on the system (by-
pass or non-intercepted zone), to allow some
functions such as, for example, the antifreeze
function.
ATTENTION:
Make sure that the expansion vessel
present in the indoor unit is sucient
for the hydraulic circuit; otherwise use the
optional vessel.
ATTENTION:
If you are using one or more booster
pumps it is essential to install a hydrau-
lic separator (not supplied by Immergas)
downstream of the indoor unit. e minimum
required 20l must be guaranteed between the
indoor unit and the hydraulic separator.
ATTENTION:
It is recommended to connect the ow
from heat pump (MHT) of the outdoor
unit to the system return (R) of the indoor unit.
ATTENTION:
With Victrix Hybrid, in case of connec-
tion to the storage tank unit, the return
present on the storage tank unit (RU) must be
connected to the return of the Outdoor unit
(RHT).
e storage tank unit return connection, pre-
sent in the indoor unit, is not used and must
be closed.
ATTENTION:
If installing a kit or servicing the
Victrix Hybrid, always empty the sy-
stem’s circuit rst so as not to compromise
the appliance’s electrical safety of the same
(see Par. 2.16).
Only for Audax.DK4.
ATTENTION:
the appliance operates with R32 refri-
gerant gas.
is gas is ODOURLESS.
Pay the utmost attention
Strictly follow the instruction handbook of the
Audax DK4 outdoor unit before installation
and any type of operation on the chiller line.
ATTENTION:
R32 refrigerant gas belongs to the low
ammability refrigerant category: class
A2L according to standard ISO 817. It
guarantees high performance with low
environmental impact. e new gas reduces
the potential environmental impact by one
third compared to R410A, having less eect
on global warning (GWP 675).

10
INSTALLATORE
UTENTEMANUTENTORE
2
Victrix Hybrid hydraulic diagram.
Key:
1 - Victrix 24HY Hybrid Indoor Unit
2 - Audax.DK4 Outdoor Unit
3 - Control panel
4 - Domestic hot water inlet shut-o
cock
5 - Gas interception cock
6 - Heat pump ow interception cock
with vent
7 - Heat pump return interception cock
with vent
8 - System
G - Gas supply
AC - Domestic hot water outlet
AF - DHW (Domestic hot water) water
inlet
SC - Condensate drain
M - System ow
R - System return
MHT - Flow from heat pump
RHT - Return to heat pump
SA - Outdoor unit water drain