Dantherm HCH 5 MKII User manual

HCH 5 MKII
MANUAL
en, da Rev. 1.0 • 2022-W23

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:
en
Table of contents
This manual covers the following topics:
Introduction .....................................................................4
About this Manual. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Declaration of conformity .............................................................6
USER MANUAL
Introduction .....................................................................7
Overview .............................................................................7
Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Control panel - overview ..............................................................8
Main operating modes ................................................................9
Temporary modes (override). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Maintenance and care .......................................................... 12
Inspection of the lter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Introduction ................................................................... 14
Overview ............................................................................14
Transport and unpacking ....................................................... 15
Unpacking . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Product description ............................................................ 16
General description ..................................................................16
Product description, continued ....................................................17
Component descriptions .............................................................18
Accessories ..........................................................................19
Electronic control ....................................................................21
Accessing the main PCB ..............................................................23
Control system strategy ..............................................................25
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Calibration of airow .................................................................32
Mounting the device .................................................................36
Calibration of airow .................................................................37
External connections .................................................................38
Maintenance and care .......................................................... 39
Preventive maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Troubleshooting .....................................................................43
Error list. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50
Appendix ...................................................................... 51
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Illustrations .................................................................... 52
Cabinet dimensions ..................................................................53

4
Introduction: About this Manual
Introduction
About this Manual
This is the manual for the Dantherm residential ventilation units HCH5 MKII.
The manual contains information targeted at:
• Product users
• Professionals such as installers and service technicians
This manual is intended for both installers and users of the product.
Installation and repair of the unit must be carried out by qualied personnel only. It is the
responsibility of the installer to read and understand this service manual prior to initial start
and setup of the HCH unit. The warranty is limited to devices installed by trained personnel.
The USER MANUAL contains information that may be relevant to professional technicians.
The INSTALLATION & SERVICE MANUAL is intended for trained personnel only.
The appliance shall be installed in accordance with national wiring regulations.
The equipment is intended only for indoor use.
Part number of this manual is 112513
Copying this manual, or parts thereof, is not permitted without the prior written consent of
Dantherm.
Dantherm reserves the right to change and improve the product and manual at any time
without prior notice or obligation.
This manual uses the following abbreviations in connection with ventilation terminology.
Abbr. Description
T1 Outside air enters the unit
T2 Supply air from the unit into the home
T3 Extract air from home to unit
T4 Exhaust air from the unit
ISO Coarse
75%
Standard air lter according to ISO 16890.
Corresponds to G4 lter according to EN 779 (outdated standard)
ePM1>50% Pollen lter according to ISO 16890 - absorbing ner particles than ISO Coarse
75%. Corresponds to F7 lter according to EN779 (outdated standard)
BP Bypass damper
(makes it possible to supply fresh ltered air to the dwelling without heat
recovery in heat exchanger)
IP Unique address for Ethernet port.
DHCP Automatic setting of an Ethernet address supplied by an external network
component (if the device is connected to the Ethernet)
PC Personal computer running MS Windows
USB Universal serial bus connection
LAN Local area network
WAN Wide area network (Internet)
BMS Building Management System
PCB Printed Circuit Board
FFC Flat Flexible Cable
Target group
!NOTE
Guide, part no.
Copyright
Reservations
Abbreviations in
this manual

5
Introduction: About this Manual
en
The following symbols are used in this manual to draw attention to hazards and additional
information of particular relevance.
Category Symbols Used Risks/ meaning
General warning
symbols
Warning
Caution
WARNING
Risk of serious injury.
Warning
Caution
CAUTION
Risk of minor or moderate injury or damage to
property.
Specic warning
symbols
WARNING
Risk of serious injury due to sharp elements/
edges.
WARNING
Risk of serious injury as e.g. electric shock due to
electricity.
WARNING
Risk of serious injury due to hot surfaces
General note !NOTE
Further tips and information regarding the use
of the device.
Mandatory
action signs
Read and understand this service manual
Disconnect mains plug from electrical outlet
Wear gloves
The warning and caution symbols are described as follows:
Type and source of hazard
Further clarication, if applicable.
• Measures to remedy the hazard or immediate measures if the risk becomes acute are
described in this way
This unit is designed to have a long life. At the end of its useful life, the unit should be recy-
cled in accordance with national regulations, with particular regard to the protection of the
environment.
Symbols in this
manual
Warning
Caution
WARNING
CAUTION
Recycling

6
Introduction: Declaration of conformity
Declaration of conformity
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Residential Ventilation
Dantherm A/S
Marienlystvej 65
DK - 7800 Skive
Tel.: [phone]
Fax: [phone]
Declaration of following products:
Product name: D
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Product no.: 3
3
5
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The product is in conformity with the following directives:
2014/35/EU Low Voltage Directive
2014/30/EU EMC Directive
2014/53/EU RED
2009/125/EC Eco Design Directive (incl. Regulation 2014/1253)
2011/65/EU RoHS Directiv (incl. Directive 2015/863)
1907/2006/EC REACH Regulation
and is manufactured in conformity with the following standards:
EN 60335-1:2012 Household and similar electrical appliances - Safety - Part 1 (+AC:2014 + A11:2014 +
A13:2017 + A1:2019 + A2:2019 + A14:2019)
EN 60335-2-40:2003 Household and similar electrical appliances - Safety - Part 2-40 (+A11:2004 + A12:2005
+ A1:2006 + AC/2006 + A2:2009 +AC:2010 + A13:2012 + A13/AC:2013)
EN 61000-3-2:2014 Electromagnetic compatibility (EMC) - Part 3-2
EN 61000-3-3:2013 Electromagnetic compatibility (EMC) - Part 3-3
EN 61000-6-2:2005 Electromagnetic compatibility (EMC) - Part 6-2 (+AC:2005)
EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3 (+A1:2011 + A1/AC:2012)
EN 60730-1:2011 Automatic electrical controls for household and similar use - Part 1
EN 62233:2008 Measurement methods for electromagnetic fields of household appliances
EN 55014-1:2006 Electromagnetic compatibility - Requirements for household appliances - Part 1
EN 55014-2:1997 Electromagnetic compatibility - Requirements for household appliances - Part 2
EN 301 489-1 V1.9.2 ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 1
EN 301489-3 V1.6.1 ElectroMagnetic Compatibility (EMC) standard for radio equipment and services; Part 3
EN 300 220-1 V2.4.1 ElectroMagnetic compatibility & Radio spectrum Matters (ERM); Short Range Devices
EN 300 220-2 V3.1.1 ElectroMagnetic compatibility & Radio spectrum Matters (ERM); Short Range Devices
EN 13141-7:2010 Ventilation for buildings - performance testing of components/products for residential
ventilation
EN 63000:2018 Technical documentation for the assessment of electrical and electronic products with
respect to the restriction of hazardous substances
Skive 28/03, 2022
Product manager Muhamed Ziga Managing director Jakob Bonde Jessen

7
USER MANUAL
Introduction: Overview
en
USER MANUAL
Introduction
Overview
This part of the manual, entitled the USER MANUAL, is intended for users of the product.
All instructions described in the INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
must be carried out by trained technicians.
For any future inquiries regarding e.g. spare parts we kindly ask you to make a note of the
serial numbers of the units here: ______________________
This guide covers HCH5 MKII.
This device is not intended for use by persons (including children) with reduced physical,
sensory or mental capabilities, unless they are under supervision or have been instructed in
the use of the device by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Apart from replacing air lters and cleaning the system externally, all maintenance must be
carried out by trained personnel. .
The ducting system must not be mounted until the unit is ready to operate. The power must
not be connected until the ducting system has been mounted.
The ventilation unit should not be used to dry newly built houses during construction or
immediately after construction.
The ducts must be dimmed and the units must not be connected until the house is ready for
occupation, which means that the house is clean and dry. This is to prevent any construction
dust and condensed water from depositing in the ducting system and to prevent any sanita-
tion inconveniences from the ventilation units later on.
If above mentioned warnings are disrespected, the warranty of the unit will be annulled and
any kind of maintenance will be done at the customers own expense.
It is important to know the correct operating procedure for the residential ventilation system
and all its safety measures. Dantherm accepts no liability with regard to lost business or per-
sonal injury as a result of non-compliance with safety measures.
Target group
Serial number
Warning
Caution
WARNING
Warning
Caution
WARNING
Safety precau-
tions

8
USER MANUAL
Operation: Control panel - overview
Operation
Control panel - overview
The control panel has four buttons (two on the left side and two on the right side) with corre-
sponding LEDs underneath. An LED light with four levels indicating the fan speed is situated
in the middle. It will always indicate the current fan speed regardless of the operating mode.
This illustration shows an overview of the dierent modes (three main modes and three tem-
porary override modes) and other functions that can be displayed in the control panel and
activated via the buttons.
Temporary mode:
• Bypass (automatic/manual)
• Summer mode
Alarm reset:
• Check lter (orange)
• Fault alarm (red)
(see page 40 and 43)
Main mode:
• Week program
• Demand-controlled mode
Main mode:
• Manual operation
Temporary mode:
• Fireplace mode
Fan speed level indicator
Fig. 1
Interface

9
USER MANUAL
Operation: Main operating modes
en
Main operating modes
Risk of water damage
• The ventilation system must always be operating!
• Besides the four hours where the unit can be stopped by the control panel, it is not advis-
able to stop the unit. This may cause condensation and subsequent leaks from the duct
system and in the ventilation unit with the risk of water damage in the building construc-
tion, damages on the unit and sanitary problems.
• Hence it is not advisable to stop ventilation – also during longer holidays. If necessary,
turn the unit to Fan Step 2 or 1 in Manual Operation instead.
The unit supplies fresh outside air into the house.
Polluted and moist air is evacuated out of kitchen, living room, bathroom etc. and led
through the unit. The heat exchanger uses this air to heat up new, fresh air, before the fresh
air is supplied into the house.
Decide which of the three main operating modes you want your HCH5 MKII to run in and ad-
just the settings as desired via Dantherm PC Tool, Dantherm Residential app or HRC3 remote
control. Please note, however, that legislation may prescribe minimum levels of ventilation
speed.
Check the fan speed manually. In manual operating mode, the ventilation unit will run at the
selected ventilation speed until this is changed manually.
Short press – activates manual operating mode. Each time the button
is pressed, the fan speed is increased by one level (level 0–4). After
level 4, the fan speed will start from level 0 again.
• NOTE: If the unit is running in manual operating mode - level 4 (fan boost)
or level 0 (o) it will automatically return to level 3 (nominal mode) after
four hours. The function of the auto setback can be customized via PC Tool.
• The fan speed at level 0 can be locked via PC Tool. When level 0 is locked, the
fan speed will jump from level 4 to 1 as it increases.
Active manual operating mode is indicated by constant light in the correspond-
ing LED
When the week program is activated, the unit will automatically adjust the ventilation speed
according to a predened week schedule.
You can activate the week program via the control panel on the unit, but you cannot choose
which week program you want to run. Selection between the 11 weekly programs (10 set
programs + one adjustable in PC Tool) can only be done using the Dantherm app, the HRC3
remote control or a text for which program is selected/set by default.
Short press – activates the selected weekly program.
The active weekly program is indicated by a constant light in the corresponding
LED
Enable demand-controlled operation for automatic control of indoor air quality. This mode
uses readings from VOC, RH and/or CO2sensors to control the indoor air quality. It is therefore
necessary for the associated sensors to be connected during demand-controlled operation.
The CO2sensor can only be connected via an installed Accessory Controller (HAC).
Long press (ve seconds) - activates demand-controlled operation.
Active demand-controlled operation is indicated by a slow ashing light in the
corresponding LED every 5 sec.
Warning
Caution
CAUTION
Function
Introduction
Manual operation
Week program
Demand-
controlled mode

10
USER MANUAL
Operation: Temporary modes (override)
Temporary modes (override)
The temporary modes are activated manually, except for the automatic bypass, and will tem-
porarily override the settings for the selected main mode. The temporary modes are automat-
ically stopped by a timer, but they can also be deactivated manually (except for the automatic
bypass).
The purpose of bypass is to cool down the house by leading the cold outside air ow directly
into the house avoiding it is heated up in the heat exchanger.
During normal operation (when manual bypass is not activated) the unit cools down by the
means of automatic bypass control, when the inside as well as the outside tempera-tures
allows it, which is the reason why in most cases manual bypass is not necessary.
In houses with large fronts of glass facing south, which causes a large amount of heat-ing,
it can be necessary to activate manual bypass in the early spring or in the autumn, because
the automatic bypass does not automatically activate refrigeration with outside air since the
outside temperature is below 15 °C.
When using manual bypass the unit supplies cool outside air directly to the house for six
hours. Information regarding set points for manual and automatic bypass is found in the
installation guide.
Bypass mode opens the bypass damper, which directs the airow around the heat exchanger.
The outdoor air will thus be supplied to the house without heat recovery. Bypass mode can
be activated in two ways:
• Automatic bypass
• Manual bypass
The automatic bypass opens/closes the bypass damper automatically when the conditions
for automatic bypass are met.
You can change the setpoints for min. outdoor temperature (Tmin) (default setting: 15°C) and
max. indoor temperature (Tmax) (default setting: 24°C) via PC Tool or the Dantherm HRC3
remote control.
If the conditions for automatic bypass are present, an open damper is indicated
by a constant light in the corresponding LED
!NOTE Mandatory conditions for allowing activation of automatic bypass:
• Outdoor air temperature is at least 2°C lower than the exhaust air temperature
• AND the outdoor temperature is higher than the setpoint (Tmin)
• AND the exhaust air temperature is higher than the set point (Tmax).
If one of the following conditions is met, the bypass will be deactivated:
• Outdoor air temperature is higher than the exhaust air temperature
• Outdoor air temperature is at least 2°C lower than setpoint (Tmin)
• Exhaust air temperature is at least 1 °C lower than setpoint (Tmax)
Energy wasting:
If the bypass temperature settings are set too low, there is a risk that the unit will
open the bypass while the central heating system in the house is active.
When the automatic bypass is active in the demand-controlled mode the air volume will be
adjusted according to the actual cooling need which is decided by the exhaust temperature.
If bypass/cooling is desired and automatic bypass is not active, the bypass can be activated
manually.
The bypass will open if the conditions for manual bypass are met within the dened time
period (default setting is six hours). The time period can be changed via PC Tool.
Introduction
Bypass mode
(Free cooling)
Automatic bypass
!NOTE
Manual bypass

11
USER MANUAL
Operation: Temporary modes (override)
en
Short press – activates/deactivates manual bypass mode.
Active bypass mode (open damper) is indicated by constant light in the corre-
sponding LED.
NOTE: If bypass mode is activated, but the conditions for open bypass damper
are not present, the activated bypass mode will not be visible from the LED.
!NOTE Mandatory conditions for allowing activation of manual bypass (all conditions
must be present at the same time. The bypass will otherwise be deactivated):
• Outdoor air temperature is at least 2°C lower than the exhaust air temperature
• AND outdoor temperature is higher than 9 °C
When summer mode is active, this will stop the supply air fan and only the extract air fan will
be in operation. In this case, a fresh air supply can be ensured by opening windows, doors,
etc.
NOTE: Summer mode will be deactivated automatically when the outdoor temperature
drops below 14°C.
Long press (ve seconds) - activate/deactivate summer mode
Active summer mode is indicated by a ashing light in the corresponding LED
Activation of the replace mode can be used when you light up the stove. The unit will then
run with positive pressure for seven minutes to prevent smoke in the living room. If the re-
place mode is not deactivated manually, it will automatically stop after seven minutes.
d: The replace mode is only activated as long as the supply air temperature is above 9°C.
Long press (ve seconds) - activates/deactivates replace mode.
Active replace mode is indicated by ashing in the three fan speed LEDs
Summer mode
Fireplace mode

12
USER MANUAL
Maintenance and care: Inspection of the lter
Maintenance and care
Inspection of the lter
Preventive maintenance is necessary at regular intervals if the unit is to operate eciently
and optimally without unintended stoppages, and to ensure the expected service life of at
least 10 years.
It is important to notice that intervals between lter maintenance can vary according to the
specic environment, and that moving parts are wearing parts, and will need replacement
when worn.
The factory warranty only applies if it can be documented that regular preventive main-
tenance has been carried out as prescribed. The documentation can be a written logbook
containing a company stamp or equivalent.
The purpose with the lters is to remove dust and other impurities from the outside air before
it is supplied into the house, and to protect both the heat exchanger and the fans from any
dirt and impurities coming from the house.
As a standard the unit is delivered with G4 lters on both the supply air and the extract air
sides. It is possible to buy F7-pollen lters (accessories) for the supply air, which strains even
more, especially suited for people with pollen allergy.
The lters must be changed at regular intervals, more information regarding change of lters
in the section “Preventive maintenance”, on page 14.
The lters are the only parts that the user can maintain himself.
Maintenance of the lter must as a minimum be carried out as shown here:
Interval Task To be carried out by:
Six
months
Check lters. Replace if necessary User
Annual Change lters User
Other components must be inspected at least every second year by trained professionals (see
page 39). Remember to contact a trained professional for a service check regularly.
The unit has a built-in timer for its lter alarm (every six months as standard). The timer period
for the lter alarm can be changed via the remote control or PC Tool, or it can be reset via the
alarm button
When the timer expires, a lter alarm is triggered. A buzzer will sound and the LED“!” will light
up orange. (if the LED lights up red, please see Troubleshooting section on page 52.
Press for 5 sec.
A short beep will sound, indicating that the lter alaram has been reset correctly.
Step Action Illustration
1 Disconnect the power to the unit
2 Remove the front door (1)
3 Remove the insulating cover plates in front of the lters.
(2)
Note that the smooth side of the sheet must be turned
towards the front door.
Introduction
Filters
Summary of
intervals
Filters - alarm and
inspection
(6 months - 1 year)
Resets the lter alarm when the alarm is triggered.
Resets the lter timer without the timer having expired.
1
2
2

13
USER MANUAL
Maintenance and care: Inspection of the lter
en
4 Change the lters and discard the old lters in an envi-
ronment-friendly way (ammable material).
Note the arrows on the lters – they must point down!
The lter opening areas are for lters only!
5 Set back the lter insulating cover plates. It is important that they face the hard, side
outwards and the soft side inward.
6 Reconnect power supply
7 When the lters have been replaced, the lter alarm
must be reset by pressing the alarm button for 5 sec-
onds.
A short beep will sound, indicating that the lter alarm
has been reset correctly.
Keep the unit clean to ensure perfect operation and good hygiene.
If the unit is soiled, e.g. around lter openings, clean with a rmly wrung dishcloth with tepid
water and detergent.
Important: Chemical solvents are not allowed!
The factory warranty is only valid when preventive maintenance can be proven. Preventive
maintenance must be carried out with a minimum interval of six months.
Documentation of maintenance should be a written log/journal. Regarding which services
needed, see the section ”Preventive maintenance” in the installation guide.
Cleaning
Terms of warranty

14
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Introduction: Overview
INSTALLATION & SERVICE
MANUAL FOR PROFESSIONALS
Introduction
Overview
This part of the manual, titled INSTALLATION & SERVICE MANUAL, is intended for qualied
personnel only.
It is important to know the correct operating procedure for the residential ventilation system
and all its safety measures. Dantherm accepts no liability with regard to lost business or per-
sonal injury as a result of non-compliance with safety measures.
Risk of injury
• Installation and repair of the unit must be carried out by qualied personnel only.
• It is the responsibility of the installer to read and understand this service manual
prior to initial startup and setup of the HCH unit.
Risk of damage to equipment or property or personal injury
• The HCH MUST be earthed with cables WITH earth wire and an earthed power supply.
Risk of water damage
• Never turn o the ventilation unit to save energy, as this may cause condensation and
subsequent leaks from the duct system, with the risk of water damage.
Injury caused by electric shock and risk of damage to the device
Disconnect mains plug from electrical outlet before you perform one of the following actions:
• remove the front cover
• open into the main PCB
(eg. in order to change operating mode using the A-B function switch)
• install, maintain, repair or dismantle the unit
Target group
Safety precautions
Warning
Caution
WARNING
Warning
Caution
WARNING
Warning
Caution
CAUTION
WARNING

15
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Transport and unpacking: Unpacking
en
Transport and unpacking
Unpacking
Step Action
1 Report any obvious damage to the carrier, packing company, postal service, etc.
immediately after delivery, and note the damage in the consignment or transport
documents.
2 Remove the packaging completely (without using a knife) and dispose of the mate-
rial according to local regulations.
3 Check the contents of the box:
4 If transport damage is detected after unpacking the device or if
the delivery is incomplete, contact the responsible sales representative or
specialised distributor immediately.
Scope of delivery:
Quantity Description Illustration
1 HCH Unit
1 bag incl.
• 1 x manual
• Labels, data sheets, etc.
• 1m drain hose
Installation manual
LABELS
LABELS
LABELS
Check for
transport damage
Content of the box

16
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Product description: General description
Product description
General description
The HCH product range from Dantherm is a residential ventilation system designed to supply
homes with fresh and ltered air, and where the heat in the extract air is transferred to the
supply air without mixing the two airows. This results in energy-ecient ventilation with low
heat energy loss.
These units are designed to be installed in environments with temperatures >-12°C. The
compact design allows the HCH unit to be placed in e.g. utility rooms with only a little space
or in the attic.
1 Exhaust lter (G4) 9 Temperature sensor, T2
2Temperature sensor, T3 10 Heat exchanger
3 Humidity sensor 11 Temperature sensor, T1
4 Data plate 12 Temperature sensor, T4
5 Control 13 Bypass module
6 Reset button for lter timer 14 Exhaust fan module
7 Connection of power 15 Supply air lter (G4/F7) G4 lter is stand-
ard, F7 lter for pollen is accessory
8 Supply air fan module
Introduction
12 3
910 11 12 1514
13
8
7
654
Drain on the back
Product
illustration

17
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Product description: Product description, continued
en
Product description, continued
The following describes and illustrates the air ow in a HCH5 MKII:
1 Outdoor air (T1) Outdoor air which enters the heat exchanger is ready to be
heated by the extract air from the house. (3)
2 Supply air (T2) The supply air is heated by the means of heat transfer from
the extract air. (3)
3 Extract air (T3) Stale and warm extract air is used to heat up the outside air
(1) by the means of heat exchange in the heat exchanger.
4 Exhaust air (T4) The exhaust air is led out of the house.
Air ow
1
3
2
4
1

18
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Product description: Component descriptions
Component descriptions
This section describes the individual components of the HCH units included in the standard
delivery.
The external parts of the cabinet are made of aluzink sheet metal. The internal parts of the
cabinet are made of polystyrene (EPS). Accessories are installed after the steel front have
been removed. The cabinet is sound and heat insulated with re retardant polystyrene foam.
The unit is designed for installation in locations with ambient temperatures ranging from
-12°C to 45°C.The unit is designed for installation in locations with ambient temperatures
ranging from +12°C to 45°C.
The unit is equipped with an ISO Coarse 75% lter as standard. These lters protect the heat
exchanger and improve the indoor climate by ltering dust and other particles from the air.
An ePM1>50% lter (pollen lter) is available as an accessory. The pollen lter is always locat-
ed on the outdoor - see also page 16.
In the counterow heat exchanger, heat energy is transferred from the extract air to the sup-
ply air, thus saving energy for heating.
The supply fan brings fresh air from outside through the heat exchanger to the ventilated
rooms inside.
The extract air fan extracts stale humid air from the wet rooms in the dwelling.
The motorised bypass damper overrides the heat exchanger functionality. It is used in
summer in warm conditions where the cooler outdoor air can be used to reduce the indoor
temperature when the indoor temperature exceeds an upper temperature limit.
The unit is equipped with an outlet for condensate.
It must be connected to the drain hose, so that condensate can be led to a drain.
The humidity sensor will continuously monitor the quality of the extract air and adjust the
airow accordingly. This mode of operation is called demand-controlled mode. If an HRC
Remote Control is connected, the level will be shown in the display using the Level 3 icon.
Demand-controlled operation will result in the correct ventilation level with the lowest possi-
ble power consumption.
The control panel located on the front of the unit shows the operating mode and the fan
speed level in which the HCH is running. Both can be selected and changed via the control
panel. The control panel also has other functions as e.g. reset of lter alarm.
Introduction
Cabinet
Filters
Heat exchanger
Fans
Bypass damper
Condensate drain
and drain hose
Humidity sensor
Control panel

19
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Product description: Accessories
en
Accessories
The unit is supplied without mounted accessories.
If additional functionality is requested, an accessory must be installed prior to the rst instal-
lation of the unit or, alternatively, after commissioning.
The unit can be equipped with an electrical preheating element that preheats the incoming
air. The preheater increases the outside air temperature before entering the heat exchanger,
and thereby reduces the risk of ice in the heat exchanger in very cold conditions.
Accesory Illustration Description Item no.
Water trap Ensures a safe drain connection 062737
Heater cable 3 m heater cable, 230 V, incl. thermostat,
approx. 10 Watt/meter
064807
Reheating coil
(water)
Reheating coil, complete set, Ø 125.
Controlled from HAC 1.
063843
Reheating coil, complete set, Ø 160.
Controlled from HAC 1.
063851
Reheating coil, complete set, Ø 250.
Controlled from HAC 1.
063852
Transformer Transformer 230/240 C, complete set 066620
Accesory Illustration Description Item no.
Pre/re heating kit
(electrical)
Pre/re heating kit, 900 W, Ø 125 mm,
0-10 V controlled.
Controlled from HAC 1
063898
Pre/re heating kit, 1200 W, Ø 160 mm,
0-10 V controlled.
Controlled from HAC 1
063899
Pre/re heating kit, 1800 W, Ø 250 mm,
0-10 V controlled.
Controlled from HAC 1
063900
Pre/re heating kit, 900 W, Ø 125 mm,
stand alone
063853
Pre/re heating kit, 1200 W, Ø 160 mm,
stand alone
063854
Pre/re heating kit, 1800 W, Ø 250 mm,
stand alone
063855
The water heating coil is controlled by the control unit (accessory).
The water heating coil increases the supply air temperatur
Introduction
Electrical pre-
heating
Heating coil

20
INSTALLATION & SERVICE MANUAL FOR PROFESSIONALS
Product description: Accessories
Replacement lters in sets of two standard lters (ISO Coarse 75%) or of one standard lter
plus one ePM1>50% (pollen lter).
Accesory Illustration Description Item no.
G4 lter set Standard lter, delivered in pack-
age with two pcs.
HCH 5
HCH 8
063470
063471
F7 pollen lter set Superne lters which lters
smaller particles e.g. pollen.
Two piece of F7 is delivered with
one piece of G4.
HCH 5
HCH 8
063448
063449
Handheld remote
control (HRC 3)
CO2
RH%


°
°
°
°
AUTO
*
*
*
*
*
Ikoner for manual
Adjust the ventilation and keep track of the home’s
humidity and temperature using the large LCD
screen on the handheld remote control.
Activate cooling function/bypass. Select the steps
for manual ventilation or relevant weekly programs
or set the controller to automatic control.
The remote control can communicate with an HCH
unit at a distance of up to 30 metres. The remote
control can be placed on horizontal surfaces or
hang on the wall.
A wired remote control (HCP 11) without display
can be connected to the unit if the unit’s location
makes it dicult to reach the control panel.
The HCP 11 provides the same functionality as the
control panel.
Wired remote
control (HCP 11)
Additional accessories can be connected to the
HCH unit via an accessory controller: HAC2
Optional control
unit (HAC 2)
VOC, humidity and
CO2sensor The unit can be equipped with a VOC (air quality)
or CO2sensor. Mounted sensors will continuous-
ly monitor the extract air and adjust the airow
accordingly. This mode of operation is called de-
mand-controlled mode. If an HRC Remote Control
is connected, the level will be shown in the display
using the Level 3 icon.
Demand-controlled operation will result in the
desired ventilation rate with the lowest possible
electricity consumption.
RH% VOC
CO2
Filters