Innova HRP DOMO Quick start guide

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INSTALLATION, USE AND MAINTENANCE MANUAL
HRP DOMO
HIGH EFFICIENCY HEAT RECOVERY UNIT

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INDEX
1GENERALITY ..........................................................................................................................................................................................................................4
1.1.1 INTRODUCTION.................................................................................................................................................................................................4
1.1.2 BASIC SAFETY RULES ...................................................................................................................................................................................4
1.1.3 SYMBOLOGY ....................................................................................................................................................................................................... 5
1.1.4 WARNINGS ............................................................................................................................................................................................................ 5
1.1.5 COMPLIANCE ...................................................................................................................................................................................................... 6
1.1.6 RANGE .......................................................................................................................................................................................................................6
1.1.7 IDENTIFICATION.................................................................................................................................................................................................7
1.1.8 CONSTRUCTION FEATURES.....................................................................................................................................................................7
1.1.9 OPERATION DESCRIPTION .......................................................................................................................................................................8
1.1.10 DELIVERY STATE..........................................................................................................................................................................................8
1.1.11 START-UP REQUIREMENTS.................................................................................................................................................................8
1.1.12 DISASSEMBLY AND DISPOSAL ........................................................................................................................................................8
2INSTALLATION.....................................................................................................................................................................................................................9
2.1.1 INSTALLATION CONDITIONS ................................................................................................................................................................. 9
2.1.2 UNIT PLACEMENT ............................................................................................................................................................................................ 9
2.1.3 CONDENSATE DRAIN CONNECTION..............................................................................................................................................10
3AREA CONNECTIONS.....................................................................................................................................................................................................11
3.1.1 AREAUAL ORIENTATIONS..........................................................................................................................................................................11
4ELECTRICAL CONNECTIONS ..................................................................................................................................................................................12
4.1.1 GENERALITY ........................................................................................................................................................................................................12
4.1.2 UNIT WIRING DIAGRAMS ..........................................................................................................................................................................13
4.1.3 ELECTRICAL CONNECTIONS VERSION -I-................................................................................................................................... 14
5INSTALLING EXTERNAL BATTERIES ...................................................................................................................................................................17
5.1.1 ELECTRIC BATTERIES ..................................................................................................................................................................................17
5.1.2 HYDRONIC BATTERIES............................................................................................................................................................................... 18

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6COMMISSIONING AND METHOD OF USE .................................................................................................................................................... 18
6.1.1 GENERALITY ....................................................................................................................................................................................................... 18
6.1.2 PANEL DESCRIPTION................................................................................................................................................................................... 19
6.1.3 PSSWITCH SETTINGS................................................................................................................................................................................ 20
6.1.4 VERSION OPERATION -I-............................................................................................................................................................................21
7MAINTENANCE ..................................................................................................................................................................................................................24
7.1.1 CLEANING OR REPLACING FILTERS.................................................................................................................................................24
7.1.2 CLEANING THE HEAT EXCHANGER ..................................................................................................................................................24
7.1.3 GENERAL CLEANING OF THE UNIT ...................................................................................................................................................25
8ALARMS ..................................................................................................................................................................................................................................25
8.1.1 GENERALITY .......................................................................................................................................................................................................25
8.1.2 PROBLEMS WITHOUT ERROR INDICATION ON THE DISPLAY ...................................................................................25
8.1.3 ALARM SIGNALING .......................................................................................................................................................................................26
8.1.4 TABLE OF ALARMS INDICATED BY THE DISPLAY - VERSIONS I -....................................................27
9NOTES AND MAINTENANCE INFORMATION..............................................................................................................................................28
NOTE..........................................................................................................................................................................................................................................28

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1GENERALITY
1.1.1 INTRODUCTION
This manual was conceived with the aim of making installation and management of your system as simple as possible.
By reading and applying the suggestions in this manual, you will be able to obtain the best performance from the purchased product.
We would like to thank you for the choice you made by purchasing our product.
Read this booklet carefully before carrying out any operation on the unit.
The unit must not be installed or performed on it in any way unless this manual has been carefully read and understood in all its parts. In
particular, all the precautions listed in the manual must be taken.
The documentation supplied with the unit must be handed over to the system manager so that he can keep it carefully (at least 10 years) for
any future assistance, maintenance and repairs.
The installation of the unit must take into account both the purely technical requirements for correct operation and any applicable local
legislation and specific requirements.
Make sure that when the unit is delivered, there are no obvious signs of transport damage. In this case, indicate it on the delivery note.
This manual reflects the state of the art at the time the machine was marketed and cannot be considered inadequate because it is
subsequently updated on the basis of new experiences. The Manufacturer reserves the right to update the production and the manuals,
without the obligation to update the previous ones, except in exceptional cases.
Contact the Manufacturer's Sales Department to receive further information or updates to the technical documentation and for any
improvement proposal to this manual. All reports received will be rigorously screened.
1.1.2 BASIC SAFETY RULES
We remind you that the use of products that use electricity and water implies the observance of some fundamental safety rules:
•Use of the appliance by disabled and unassisted persons is prohibited.
•It is forbidden to touch the appliance with bare feet and with wet or damp parts of the body.
•Any cleaning operation is prohibited before having disconnected the appliance from the mains power supply by setting the main
system switch to off.
•It is forbidden to modify the safety or adjustment devices without the authorization and indications of the appliance manufacturer.
•It is forbidden to pull, disconnect or twist the electric cables coming out of the appliance, even if this is disconnected from the mains
power supply.
•It is forbidden to introduce objects and substances through the air intake and delivery grilles.
•It is forbidden to open the access doors to the internal parts of the appliance without having first turned the main switch of the
system to off.
•It is forbidden to disperse and leave the packaging material within the reach of children as it can be a potential source of danger.
•Respect the safety distances between the machine and other equipment or structures to guarantee sufficient access space to the
unit for maintenance and assistance operations as indicated in this booklet.
•The power supply of the unit must take place with electric cables having a section suitable for the power of the unit. The voltage and
frequency values must correspond to those indicated for the respective machines; all machines must be earthed as per current
legislation in the various countries.

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1.1.3 SYMBOLOGY
The symbols shown in the following file allow you to quickly provide the information necessary for correct use of the unit.
Safety related symbols
ATTENTION
Authorized personnel only Warns that the operations indicated are important for the safe operation of the machines.
DANGER
Risk of electric shock Warns that failure to observe the instructions involves a risk of electric shock.
DANGER Warns that failure to observe the instructions involves a risk of harm to exposed persons.
WARNING It warns that failure to observe the instructions involves a risk of damage to the unit or the
system.
DANGER Warns that there is the presence of moving parts and involves a risk of harm to exposed people.
1.1.4 WARNINGS
The installation of the unit must be carried out by qualified and authorized personnel according to the regulations in force in the
various countries.
If the installation is not performed it could become a dangerous situation.
Avoid installing the unit in very humid rooms or with the presence of large heat sources.
On the electrical side, to prevent any risk of electrocution, it is essential to disconnect the main switch before carrying out any
operations
electrical connections and any maintenance operation.
In the event of water leaks inside the unit, position the main switch of the system to "Off", close the taps of the
water and contact the technical service
It is recommended to use a dedicated power circuit; never use a power supply in common with other appliances.

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It is recommended to install an earth leakage breaker; failure to install this device could result in electric shock.
For the connection, use a cable long enough to cover the entire distance, without any connection; do not use
extension cords and do not apply other loads on the power supply but use a dedicated power circuit.
After connecting the electric cables, make sure that the cables are arranged so as not to exert excessive forces on the covers or on
the
electrical panels; any incomplete connection of the covers may cause overheating of the terminals.
Make sure that the earth connection is made; do not earth the appliance on distribution pipes.
High intensity surge currents could damage the unit
Installations carried out outside the warnings of this manual or use outside the operating limits will invalidate
the guarantee instantly.
Make sure that the first start-up is carried out by personnel authorized by the company (see first start-up request form)
1.1.5 COMPLIANCE
The CE marking (present on each machine) certifies compliance with the following EU standards:
•Machinery Directive 2006/42/EC
•Low Voltage Directive 2014/35/EC
•Electromagnetic Compatibility Directive 2014/30/EC
•Ecodesign 2009/125/EC
•RoHS2 2011/65/EU
•WEEE 2012/19/EC
1.1.6 RANGE
-1-
-2-
-3-
HRP DOMO
20
v
I
1) Defines the maximum range
From 200 m³/ha 500 m³/h
2) Type of installation
V: Vertical
H: horizontal
3) Type of control
I: electronics

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1.1.7 IDENTIFICATION
-The unit can be identified by the plate placed on the lower front panel of the same.
- On the packaging there will be an additional identification plate with the unit model and shipping references.
-The plate on the packaging has no value for the traceability of the product in the years following the sale.
The removal, deterioration and illegibility of the plate placed on the unit entails major problems in identifying the machine, in finding spare
parts and therefore in any future maintenance.
1.1.8 CONSTRUCTION FEATURES
CHASSIS: Self-supporting sheet metal frame with interior in shaped EPS with a density of 40kg/mc.
HEAT EXCHANGER:
High efficiency counter-current cross-flow polypropylene heat exchanger.
Low freezing temperatures and operation down to -25°.
Very high exchange efficiency.
FANS: Brushless fans with electronic motor and modulating control.
Very high efficiency and low noise levels.
FILTERS:
70/80% ePM1 filters with low pressure drop.
Easily removable both horizontally and vertically.
FREE COOLING:
Free cooling realized inside the unit with large air passage and damper with motorized
actuator.
ELECTRICAL CABINET:
Electrical panel complete with 4-speed fan management board, antifreeze, automatic
bypass, temperature probes, post-heating coil management and automatic dirty filter
signalling.
Mandatory control panel for unit operation with capacitive touch for mounting on 503 box
or wall;

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1.1.9 OPERATION DESCRIPTION
The unit is a ventilation system with heat recovery with the following characteristics and peculiarities:
•promotes healthy ventilation inside homes, allowing for correct air exchange in the rooms and extracting excess humidity and bad
odours;
•allows considerable energy savings for heating thanks to the efficiency of the heat recovery unit greater than 90%;
•the ePM1 class filters, with low pressure drop, guarantee the filtering of the external air, essential for allergy sufferers;
•the electronically controlled speed motors guarantee low electricity consumption;
•heat and sound insulation;
•easy access inspection and maintenance by panel with locks;
•frost protection;
•control unit with display;
•predisposition for easy connection to the network and remote control;
•also available in the version with integrated bypass.
1.1.10 DELIVERY STATE
The supply includes:
•recovery unit complete with fans installed inside the unit
•polypropylene counter-current exchanger pre-inserted inside the unit;
•ePM1 class filters pre-inserted inside the unit;
•electrical box with connection terminal block;
•ceiling mounting brackets (H version)
•wall mounting bracket (Version V)
•labels/stickers (safety pictograms, identification of air connections, CE marking…) already positioned on the unit.
•installation, use and maintenance manual
1.1.11 START-UP REQUIREMENTS
Before starting, make sure there are no foreign bodies inside the unit.
Check the fixings of the closure panels and inspection doors.
If there are no ducts installed on one of the 4 aeraulic intakes, install an adequate safety net.
Check the power supply and grounding of the unit.
1.1.12 DISASSEMBLY AND DISPOSAL
Do not disassemble or dispose of the product yourself. The disassembly, demolition, disposal of the product must be carried out by
authorized personnel in accordance with local regulations.

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2INSTALLATION
2.1.1 INSTALLATION CONDITIONS
The unit must be installed according to the national and local standards governing the use of electrical devices and according to the following
indications:
•install the unit inside residential buildings with an ambient temperature between 0 °C and 45 °C;
•avoid areas near sources of heat, steam, flammable and/or explosive gases and particularly dusty areas;
•install the unit in a place not subject to frost (the condensed water must be discharged not frozen, at a certain angle, using a siphon);
•do not install the unit in areas with a high relative humidity (such as the bathroom or toilet) to avoid condensation on the external
surface;
•choose an installation site where there is sufficient space around the unit for the connections of the air ducts and to be able to carry
out maintenance operations;
•the consistency of the ceiling/wall/floor where the unit will be installed must be suitable for the weight of the unit and not cause
vibrations.
In the environment chosen for installation there must be:
-air duct connections;
-230V single-phase electrical connection
-connection for the condensate drain.
The unit is an integral part of a balanced ventilation system, in which contaminated air is extracted from the kitchen, bathroom or any other
room and the same volume of fresh air is introduced into the living room or bedrooms. The spaces under the doors ensure good circulation of
the air flow inside the house: make sure that these spaces are never obstructed, for example by draft excluders or carpets, otherwise the
system will not work optimally.
Simultaneous operation of the unit and a natural draft boiler (e.g. open fireplace) can cause a depression in the room, due to which a backflow
of flue gases can occur in the room.
2.1.2 UNIT PLACEMENT
H VERSION – Ceiling mounting
To mount the unit on the ceiling you will need:
•Place the 4 mounting brackets on the rear side of the
unit and fix them with the supplied screws after
drilling the holes (the holes must be drilled on the
frame);
•Fix the unit to the ceiling, using the brackets, using
suitable anchoring systems (dowels, threaded rods,
chains…) and check its leveling using a spirit level.
•Ensure sufficient space for carrying out maintenance
activities: the opening of the cover of the unit (from
below) must be guaranteed.
Do not mount the unit with the sides in direct contact with the
walls to avoid possible contact noise, insert rubber or
neoprene strips in this case.
Ceiling mount Ceiling mounting
brackets

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VERSION V – Wall mounting
To mount the unit on the wall you will need:
•Install the condensate drain kit on the back panel:
remove the plugs, insert the internal connection
pipe and screw the siphon on the outside;
•Lay the unit on the floor
•Position the supplied mounting bracket on the
wall using suitable dowels or anchoring systems.
•Position the unit above the fixing bracket and
adjust the two spacers to guarantee correct
support on the vertical surface.
Ensure sufficient space for carrying out maintenance
activities: the opening of the front panel of the unit must
be guaranteed
Do not mount the unit with the sides in direct contact with
the walls to avoid possible contact noise, insert rubber or
neoprene strips in this case.
Wall mounting
Wall mounting bracket
2.1.3 CONDENSATE DRAIN CONNECTION
Due to the heat recovery system (the hot exhaust air is cooled by the intake air inside the heat exchanger), the humidity contained in the indoor
air condenses inside the unit.
For the correct functioning of the heat recovery unit, it is therefore necessary to connect a condensate drain to the plumbing system (drain) of
the house. Furthermore, to allow the correct outflow of the condensate water and avoid air suction, the condensate drain must always be
provided with a special siphon to be installed by the installer;
For the installation of the condensate drain, comply with the following standards:
•give the drain pipe a slope of at least 2%;
•provide for the possibility of disconnecting the drain pipe for any maintenance (particularly in the case of ceiling installation);
•make sure that the discharge end of the hose is at least below the water level of the siphon;
•make sure that the siphon is always full of water.
•make sure that the H1 dimension is at least > 35-40mm and the H2 dimension at least > 35-40mm
Install the condensate drain siphon on the expulsion side of the unit to avoid unpleasant odors in the ambient air

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3AREA CONNECTIONS
3.1.1 AREAUAL ORIENTATIONS
The unit is equipped with 4 circular male connections of different Ø according to the size: for optimal operation.
For the correct connection of the air ducts, refer to the following diagram and the stickers placed on the unit.
Table of unit aeraulic connection diameters
Size
20H
20 V
30 H
30 V
40 H
40 V
50 H
50 V
Diameter mm
125
125
160
160
160
160
160
160
We recommend the installation of at least 500mm of flexible piping to avoid the dragging of vibrations and annoying noises due to the
installation.
Depending on the system in which the unit is to be installed, it will be possible to suitably orient the four aeraulic connections.
Here are the possible configurations:
CONFIGURATIONS HORIZONTAL VERSION H (SIZES 20 / 30 H) Units are shown top view
H1
H2
CONFIGURATIONS HORIZONTAL VERSION H (SIZES 40 / 50 H) The units are shown in top view
H1
H2

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VERTICAL VERSION (ALL SIZES) Units are shown top view
V1
V2
4ELECTRICAL CONNECTIONS
4.1.1 GENERALITY
-Before starting any operation to make the electrical connections, make sure that the unit is not electrically powered.
-Make the necessary electrical connections by consulting only the electrical diagram attached to this manual.
- Install a suitable interrupting and differential protection device for the exclusive service of the unit.
-It is essential that the unit is connected to an efficient earth connection. The manufacturer declines all responsibility for non-observance of
this precaution.
- Check that the electrical components chosen for installation (main switch, circuit breakers, cable section and terminals) are suitable for the
electrical power of the installed unit and that they take into account the compressor peak currents as well as the maximum load that can be
reached. The relative data are indicated on the attached wiring diagram and on the unit identification plate.
-It is forbidden to enter the unit with electric cables except where specified in this booklet.
-Use cables and electrical conductors with adequate sections and compliant with the regulations in force in the various countries.
-Absolutely avoid running the electrical cables in direct contact with pipes or components inside the unit.
-Check the tightening of the screws of the power supply terminals after the first moments of operation.
Power line sizing table:
Size
20 H
20 V
30 h
30V
40 H
40V
50H
50V
Maximum absorbed
current
TO 0.74 0.74 1.6 1.6 1.6 1.6 3.5 3.5

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4.1.2 UNIT WIRING DIAGRAMS
Version I
LINKS PROVIDED BY THE CUSTOMER
GRID
Speed Booster
Contact closed / function active
CHILLER
Post battery generator control or preheating battery
Clean contact
N - CL - CP
Water valve / rear battery
Live contact (220v)
REMOTE DISPLAY
Remote control (4 wires)
ON OFF REMOTE (ON DISPLAY)
Remote ON OFF contact present on remote display
Contact closed / unit OFF

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4.1.3 ELECTRICAL CONNECTIONS
Remote panel connection complete with air quality, humidity and temperature probe
The -I- version card has capacitive touch-
type remote controls for managing all the
unit's functions and is set up for wall-
mounted or external 502 box installation.
There are two families of remote
commands:
•Serial command with the possibility of
RS485 Modbus RTU connection;
•Serial control with the possibility of
connection to a WIFI network and
management of the unit through a
dedicated APP.
The controls can be supplied in both White
and Black colours.
The connection of the control to the unit
takes place via a 4-conductor 0.75/1 mm
shielded/braided cable.
The remote control foresees, through the
other available terminals, the connection to
an RS485 Modbus RTU serial network as
shown below.
Remote panel
Auxiliary Connections
The card allows the operation of the EC Brushless fan through a remote control described above;
Some auxiliary functions have been implemented in the card such as the connection of the regulators and the management of a battery / post
valve;

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DISPLAY CONNECTION FOR CONTROL OF MULTIPLE UNITS
The panel provides for the command of
several units; it is possible to connect up to
30 units which will be managed by the
single remote panel;
They must be connected in series with an
in and out connection on the boards of the
individual units;
The network is an RS485 network; Use a 2-
wire shielded cable with a maximum length
of 150m;
-Execute a layout in order to minimize the
length of the derivations;
-terminate the line with the supplied 120 Ω
resistor;
- do not make "star" connections; - the
connection with the RS485 cable is
polarised,
REMOTE ON OFF LINK
The remote panel has an ON OFF
command with which the unit can be
connected via a clean contact to a device
for remotely switching on / off the unit such
as a switch or a timer
The logic provides:
Contact closed: Unit OFF
Contact open: Unit ON

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BOOSTER CONNECTION
The connection of a contact which brings
the ventilation speed to maximum speed is
foreseen;
The connection is made on the GRID
terminals
as indicated on the wiring diagram
Contact closed – booster speed active
Booster connection
VALVE / POST BATTERY CONNECTION
The unit provides for the command of an
electric post valve/battery, through the
230v command provided on the board;
•N- COMMON
•CL- FIXED VOLTAGE FOR 3-
POINT VALVE CONTROL
•CP- 2-3 POINT VALVE ON OFF
COMMAND
Connection Water Valve / Post Battery
CONNECTION OF GENERATOR / POST / PRE HEATING BATTERY
The unit provides for the command of a
generator which is activated in parallel with
the post battery valve via the voltage-free
contact on the terminal block;
The contact can alternatively command a
pre-heating coil, to be used for installation
in particularly harsh climates;
The selection of the Pre or post function
can be made using the dipswitch A and
illustrated in the remote control functions;
Pre - post Generator / Battery connection

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5INSTALLING EXTERNAL BATTERIES
5.1.1 ELECTRIC BATTERIES
The unit can be equipped with an electric heater which can be installed in the following ways.
The coil is managed directly by the unit in version I and is equipped with an internal thermostat for further
regulation. For the details of the electrical connections, follow the instructions in the battery manual
Version I controls the electric coil directly through the Chiller contact on the board;
Battery with pre-heating function
The coil has the function of defrosting and protecting the unit from freezing.
Installation:
•mount the heater on the “fresh air” duct;
•connect the heater to the mains with a dedicated line;
•set the temperature on the internal thermostat to 2 °C;
In any case, the battery must be installed with the cover facing upwards to avoid malfunctioning of the
safety devices.
Battery with post-heating function
In winter, the coil has the function of heating the air entering the home to bring it to the required comfort
temperature.
Installation:
mount the heater on the “introduction” duct;
connect the heater to the mains with a dedicated line;
set the temperature on the internal thermostat a to the desired temperature (e.g. 18 °C);
In any case, the battery must be installed with the cover facing upwards to avoid malfunctioning of the
safety devices.
To select the pre or post function, follow the dip-switch setting instructions in the commissioning chapter;
When the unit is put in summer mode it is necessary to cut off the power supply to the electric coil
Electric battery

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5.1.2 HYDRONIC BATTERIES
As an alternative to the electric coils, the unit can be equipped with a hydronic coil capable of
heating/cooling the air entering the building, thus allowing it to be brought to the set temperature. The
hydronic coil in cooling mode will be able to dehumidify the incoming air.
Version I controls the coil via the valve command (2-point command) and via the Chiller clean contact which
can be used to activate the generator;
Installation:
•mount the battery on the "introduction" duct;
•connect the water pipes to the battery;
•connect the condensate drain.
For correct operation, the dip-switches must be set to the "post" function.
Hydronic battery
6COMMISSIONING AND METHOD OF USE
6.1.1 GENERALITY
To guarantee the "discharge" of the humidity that is naturally created inside the home, the unit must operate continuously at least at reduced
speed (speed 1). If you switch off the ventilation unit, condensation may occur inside the unit and inside the building with possible moisture
damage.
The commissioning of the unit and any modification of the factory settings must only be carried out by qualified personnel (authorised
installer).

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6.1.2 PANEL DESCRIPTION
The unit is controlled completely
manually by the user, through the touch
control on the wall;
The remote control has an internal air
quality and humidity sensor for automatic
control of the air flow;
The sensors interact to regulate the air
flow and ensure the comfort of humidity
and air quality inside the environment;
The command that includes the WIFI
module allows you to control the unit
through a dedicated APP to monitor and
set the status of the sensors and the
operation of the machine from mobile
devices locally and remotely via the
cloud;
Humidity sensor Air quality sensor WIFI module (optional)
Remote command

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6.1.3 PSSWITCH SETTINGS
In the upper part of the board there are 4 dipswitches for the various operating configurations of the unit;
It is essential to set the dip-switches correctly; then the indications for the various methods of use are repeated;
DIPSWITCH FUNCTIONS
DIP SWITCH
A
ON
OFF
CHILLER contact pre-heating coil activation
CHILLER contact pre-heating coil deactivation
DIP SWITCH
B
ON
OFF
– Unit enabling with modulating coil control
-Unit disabling with modulating coil control
NB The unit model is factory set to OFF; do not change the setting to avoid malfunctioning of the unit;
CD DIP
SWITCH
The combination of these Dip Switches decides the functioning of the humidity and air quality sensors
ON OFF
OFF ON
Room humidity control
Environmental quality control
OR NOT
Room humidity and room air quality controls active
The maximum value between the two calculated is
used;