Dantherm HCV 400 P1 User manual

HCV 400
Rev. 1.0
en • de • fr • es • da • nl

Der tages forbehold for trykfejl og ændringer
Dantherm can accept no responsibility for possible errors and changes
Irrtümer und Änderungen vorbehalten
Dantherm n’assume aucune responsabilité pour erreurs et modications éventuelles

3
Notes on this instruction manual
Table of contents
This service manual covers the following main topics:
Notes on this instruction manual ..................................................3
Table of contents......................................................................3
Overview .............................................................................4
Product description ..............................................................7
Overall description ....................................................................7
Components description .............................................................10
Additional equipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Electronic control ....................................................................13
System operation strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installation options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Initial calibration .....................................................................22
Setting operation parameters.........................................................24
User’s guide .................................................................... 25
Overall ventilation functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
User interactions .....................................................................26
Service Guide .................................................................. 29
Preventative maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Trouble shooting.....................................................................32
Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Technical Data .......................................................................34
Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
Enclosure dimensions ................................................................40
Table of contents
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Overview
This is the service manual for the Dantherm HCV 400 residential ventilation unit.
Part number of this service manual is: 097647.
Installation and repair of the unit is to 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 HCV unit.
This application is not intended for use by persons (including children) with reduced physi-
cal, sensory or mental capabilities, unless they have been given supervision or instructions
concerning the use of the appliance by a person responsible for their safety.
Children should be supervised to ensure that they do not play with the appliance.
Apart from the replacement of air lters and exterior cleaning of the system, any kind of
maintenance will require the use of trained personnel.
It is important to acknowledge the correct operating procedures for the home ventilation
unit and all of its safety precautions. Dantherm accepts no liability with regards to loss of
business or personal injury as a consequence of failing to abide by safety procedures.
Risk of equipment damage, property damage or personal injury
• The HCV MUST be earthed, through cables WITH earth wire and earthed power supply.
Copying of this service manual, or part of it, is forbidden without prior written permission
from Dantherm.
Dantherm reserves the right to make changes and improvements to the product and the
service manual at any time without prior notice or obligation.
Dantherm hereby, declare that the unit mentioned below:
No.: 352480 Type: HCV 400 P1, P2, E1
- complies 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
2011/65/EU RoHS Directive (Restriction of hazardous substances)
1907/2006/EC REACH Regulation
- and is manufactured in compliance with the following harmonized standards:
EN 60335-1:2012 Household and similar electrical appliances - Safety - Part 1
EN 60335-2-40:2003 Household and similar electrical appliances - Safety - Part 2-40
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
EN 61000-6-3:2007 Electromagnetic compatibility (EMC) - Part 6-3
EN 60730-1:2011 Automatic electrical controls for household and similar use - Part 1
EN 62233:2008 Measurement methods for electromagnetic elds of household
appliances
EN 55014-1:2006 Electromagnetic compatibility - Requirements for household appliances
- Part 1
Introduction
Manual
Target group
Safety precautions
Warning
Caution
WARNING
Copyright
Reservations
Declaration of
conformity

5
Overview, continued
EN 55014-2:1997 Electromagnetic compatibility - Requirements for household appliances
- Part 2
EN 301489-1:2011 Electromagnetic compatibility (EMC) standard for radio equipment and
services; Part 1
EN 301489-3 Electromagnetic compatibility (EMC) standard for radio equipment and
services; Part 3
EN 300220-1:2001 Electromagnetic compatibility & Radio spectrum Matters (ERM);
Short Range Devices
EN 300220-2:2017 Electromagnetic compatibility & Radio spectrum Matters (ERM);
Short Range Devices
EN 300220-3:2001 Electromagnetic compatibility & Radio spectrum Matters (ERM);
Short Range Devices
Skive, 20.07.2018
This unit is designed for long term durability. When total lifetime ends, the unit should be
recycled according to national rules and with high environmental protection considerations.
This manual uses the following abbreviations for ventilation terminologies.
Abb. Description
T1 Outside air coming into the unit
T2 Supplied air from the unit to the home (heated in the heat exchanger)
T3 Extract. Evacuated, stale and warm air.
T4 Exhaust air from the unit (cooled in the heat exchanger)
S1 Temperature sensor no 1
S2 Temperature sensor no 2
S3 Temperature sensor no 3
S4 Temperature sensor no 4
Mode A Indicating operation mode A where T2 and T3 are on the left side of the top of the
unit.
Mode B Indicating operation mode B where T2 and T3 are on the right side of the top of
the unit.
G4 Standard air lter
F7 Fine lter, pollen lter (additional equipment)
BP Bypass damper (prevents overheating of the home on hot days)
IP Unique address for the Ethernet port.
DHCP Automatic settings of an Ethernet address provided from an external network
component ( if connecting the unit to 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 Print Circuit Board
FFC Flat Flexible Cable
Recycling
Abbreviations in
this manual
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Overview, continued
Type and source of hazard
This symbol in connection with the word“Warning”warns of a risk involving severe injury.
• Measures to avert danger or immediate measures if the risk occurs are described in this
way
Type and source of hazard
This symbol in connection with the word“Caution”warns of a risk of minor or moderate injury
and material damage.
• Measures to avert danger or immediate measures if the risk occurs are described in this
way
In connection with this symbol you will nd further tips and information concerning the use
of the device.
Warning
Caution
WARNING
Warning
Caution
CAUTION
!NOTICE

7
Product description
Overall description
The HCV range from Dantherm is a home ventilation unit which is designed to supply fresh
air to residential homes, by exchanging heat from outgoing air to incoming air, resulting in
energy ecient ventilation with low heat energy loss.
These units are designed for installation, in dry surroundings, with temperatures >12°C. e.g.
utility room or similar heated rooms.
The air ow paths can be electronically swapped, providing ability to route the connected
ducts, either to the right or to the left.
This illustrates the unit.
Pos. Part Illustration
1 Silencer (optional)
2 Control panel
3 Filter 1
4 Filter 2
5 Main PCB
6 Fanbox 1
7 Fanbox 2
8 Bypass
9 Heat exchanger
10 Water drain mode B
11 Water drain mode A
Fig. 1
Introduction
Product
illustration
1
2
4
3
5
67
8
9
10
11
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Overall description, continued
There are three dierent variants of the HCV 400 unit: P1, P2, E1. The function and installation
of the unit is exactly the same. The variants only dier by their heat exchanger thus inuenc-
ing the performance of the unit.
The product label showing the variant is placed next to the USB connection (see below).
Fig. 2
This section illustrates the function of the dierent parts in drain mode A / B.
Duct 1
Duct 2 Duct 4
Duct 3
Drain
mode A
Drain
mode B
Fig. 3
Part Mode A Mode B
Duct connection 1 (Fig. 3) Outdoor air - T1 Extract air - T3
Duct connection 2 (Fig. 3) Supply air - T2 Exhaust air - T4
Duct connection 3 (Fig. 3) Extract air - T3 Outdoor air - T1
Duct connection 4 (Fig. 3) Exhaust - T4 Supply air - T2
Filter 1 (Fig. 1) Extract lter G4 Supply lter G4 or F7
Filter 2 (Fig. 1) Supply lter G4 or F7 Extract lter G4
Fanbox 1 (Fig. 1) Extract fan Supply fan*
Fanbox 2 (Fig. 1) Supply fan* Extract fan
*Supply fanbox can be tted with electrical preheat element (accessory)
HCV variant
P1, P2, E1
Description of
drain mode A / B

9
Overall description, continued
This illustration shows the two air ow paths through the unit. The airow direction can be
changed by changing operation mode as described on page 16.
Pos. Mode A Mode B Illustration
A Extract air Outdoor air
B Supply air Exhaust air
C Exhaust air Supply air
D Outdoor air Extract air
Fig. 4
Air ow direction
in mode A / B
B
A
C
D
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Components description
This section describes the individual components of the HCV 400, which are part of standard
delivery.
The external parts of the cabinet are manufactured from powder coated, AZ-coated steel
plating. The internal parts of the cabinet are manufactured from expanded polystyrene (EPS).
Accessories are installed after removing the steel front and EPS doors. The cabinet is sound
and heat insulated with re retardant polystyrene foam. The unit is designed for installation in
ambient temperatures from 12° to 50°C.
The unit is equipped with a class G4 cassette lter as standard. These lters protect the heat
exchanger and improve the indoor climate by ltering the air of dust and other particles. An
F7 lter (pollen lter) can be purchased as an accessory. The F7 lter is always placed on the
supply side - shown on the top of the unit.
The reverse ow heat exchanger absorbs the heat energy from the evacuated air and moves
it to the fresh air, thereby saving on energy needed for heating.
The supply fan adds fresh air from outside through the heat exchanger to the ventilated
indoor rooms.
The extractor fan sucks out stale and moist air from the home through the heat exchanger,
where it releases its heat into the fresh outdoor air.
The motorized bypass damper overrides the heat exchanger functionality. This is used in
warm summer conditions, where colder outside air can be used for reducing inside tempera-
ture, when inside temperature exceeds an upper temperature limit.
The unit is equipped with two drain valves. One of these must be connected to a drain hose
to direct the condensate to a drain.
Correct connection to the drain valves is shown at the top of the unit and on page 20 in
this service manual.
The humidity sensor will continuously monitor the quality of the extract air, and adjust the air
ow level accordingly. This operation is named demand mode. If a HRC remote control is con-
nected, the level will be shown in the display using 3 level icon.
Using demand mode will result in the correct level of ventilation with lowest possible electri-
cal power consumption.
Introduction
Cabinet
Filters
Heat exchanger
Fans
Bypass damper
Water outlet
Humidity sensor

11
Components description, continued
This illustration shows the control part of the unit.
S3 S1
BP
3
S2
1
2
S4
A B
4
Fig. 5
Pos. Mode A Mode B
S1 T1 outside air inlet temperature sensor T3 indoor extracted air temperature sensor
S2 T2 indoor supply air temperature sensor T4 exhaust to outside temperature sensor
S3 T3 indoor extracted air temperature
sensor
T1 Outside air inlet temperature sensor
S4 T4 exhaust to outside temperature sen-
sor
T2 indoor supply air temperature sensor
A VOC and RH% sensor (accessory) n/a (Gasket)
B n/a (sealing pad) VOC and RH% sensor (accessory)
1 P1 outside air inlet pressure connection P3 indoor extracted air pressure connec-
tion
2 P2 indoor supply air pressure connection P4 exhaust to outside air
pressure connection
3 P3 indoor extracted air pressure connec-
tion
P1 outside air inlet pressure
connection
4 P4 exhaust to outside air pressure con-
nection
P2 indoor supply air pressure connection
BP Cable for bypass Cable for bypass
Control parts
illustration
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Additional equipment
The unit is delivered without any accessories mounted. If further functionality is requested
the accessories are to be installed prior to initial unit installation or alternatively after commis-
sioning.
The unit can be equipped with a silencer.
The unit can be equipped with an electrical preheating element that preheats the incoming
air. The preheater increases the outside air temperature going into the heat exchanger, and
thereby reduces the risk of ice in the heat exchanger in very cold conditions.
This unit can be tted with a VOC (air quality) sensor. This sensor will continuously monitor
the quality of the extract air, and adjust the air ow level accordingly. This operation is named
demand mode. If a HRC remote control is connected, the level will be shown in the display
using 3 level icon.
Using demand mode will result in the correct level of ventilation with lowest possible electri-
cal power consumption.
Adjust the ventilation and keep track of the home’s humidity and temperatures via the
large LCD screen in the hand-held remote control. Enable cooling function/bypass (if this is
installed in the HCV unit), select manual ventilation steps or relevant weekly programs or set
the controls to automatic. The remote control can communicate with the HCV unit at up to 30
metres distance. The remote control can be placed on level surfaces or hung up on the wall.
If the unit is placed in a way, which makes it dicult to reach the control panel, the HCP 10
Home Ventilation Control Panel can be connected to the unit. HCP 10 is connected to the unit
via cable and gives the same functionality as the control panel.
Connect a number of additional accessories to the HCV unit via Home Accessory Controller:
HAC2.
Replacement lters in sets of 2 standard lters or 1 standard plus 1 F7 (pollen) lter.
Installation of
accessories
Silencer
Electric preheating
VOC sensor
Hand-held remote
control (HRC 3)
HCP 10
HAC2 accessory
control
Filters

13
Electronic control
The unit’s main controls are placed on the main PCB, together with other ouputs and inputs.
The Control panel with LED displays is connected to the main PCB with a non-extendable
multicore cable.
This illustrates the overall system control architecture:
External connected items
HRC3 wireless
remote
Ethernet router with
DHCP
HAC2 on MODBUS
(Accessory)
USB service port
2 pcs Digital in
High/low fan speed
230VAC input
Dantherm Main
contoller PCB
Keypad with LED
Extract fan
Supply fan
Air quality demand
sensor (VOC)
Air Humidity (RH%)
demand sensor
Bypass 230V
Preheater 230VAC
T1 - T4 Temperature
sensors
Smart
Phone
App
BMS
system
Accessory
HCV Unit
Fig. 6
This drawing illustrates the main PCB and control panel.
Pos. Part Illustration
1Power
2 USB connection
3 Control panel
4 Main PCB
Fig. 7
Function
Illustration
Unit control
illustration
1
23
4
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Electronic control, continued
This drawing illustrates the external connections of the main PCB. See also the wiring dia-
gram on page 39, when connecting to the dierent ports.
Fig. 8
Pos. Connection (Part) Description
1 Digi in External digital input, to select operation modes
2 Antenna Wireless connection point for proprietary remote control - HRC3
3 Modbus Modbus connection for HAC2 + HCP10
4 Ethernet LAN connection
The table below and the corresponding symbols show the control panel including the LED
signal lights and buttons. The user manual on page 26 describes operation of the unit in
details.
Description Illustration
The foil keypad has four buttons (two on the left and two
on the right side) with a corresponding LED signal light be-
low. An LED light with four levels indicating the fan speed
is situated in the middle. It will always indicate the present
fan speed regardless of operation conditions.
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
These are the symbols illustrated on the Control panel.
Symbols
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
Override mode:
• Bypass (Automatic / manual)
• Summer mode
Fan speed level indicator
Main mode:
• Manual fan speed
Override mode:
• Fireplace mode
Main mode:
• Week program
• Demand mode
Alarm reset:
• Clean/ replace lter (orange)
• alarms (red)
Part Bypass
(button)
Manual
operation
(button)
Fan speed
(level
indicator)
Week Program
Operation &
Demand Control
(button)
Alarm reset
(button)
Connection
description
1 2 3 4
Control panel

15
System operation strategy
This section describes the operation strategy in various conditions.
If a preheater is installed, the unit can add electrical heat to the T1 incoming outside air, in
order to reduce defrost situations, and increase the supply air temperature.
• Preheat is applied after the T1 sensor.
• If outside temperature is < -3°C or supply air is < 16,5°C the preheater will switch on
with 10% power.
• The power will increase/decrease 10% for each 60 seconds depending on the T1 or T2
temperature.
Preheating setpoints are xed and cannot be changed.
In cold conditions where T1 is below -3°C and exhaust T4 is < +2°C the condensed water
could built up as ice in the heat exchanger.
In order to prevent this, following sequence is initiated:
• Apply additional heat with preheater if mounted.
• The supply fan speed will decrease speed until minimum RPM is reached.
• After 10 seconds the supply fan will stop completely, while the ongoing exhaust fan
supplies warmer air into the heat exchanger component, to remove potential ice.
• When T4 yet again is > +8°C the supply fan will start at minimum RPM, and then
increase speed until the original required speed is regained.
• This procedure is repeated as long as necessary.
• If T1 is ≤ -13°C for more than 4 minutes and 25 seconds, even with defrost mode active,
the unit will stop all operation for 30 minutes, and reattempt previous operation
condition. If electrical preheat is present, this total o-mode is disabled.
The defrost operation will create an underpressure inside the house. This may cause
smoke from e.g. a replace to be drawn back into the house. If replace mode is enabled, the
unit will stop all operation in 4 hours instead.
Setpoints for defrost cannot be changed.
When defrost is active HRC 3 will show“dEF” in the display.
When defrost has shut all o, the display will ash the T1 temperature
See more in the“User’s guide”section on page 26 and page 27.
Introduction
Preheat
Defrost / replace
function
Bypass cooling
and summer mode
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Installation
Installation options
HCV 400 has an option for swapping the duct connections according to the description
in section “Product description”-“Overall description”. The current section will guide you
through the process of swapping the running mode between mode A and B.
Injury by electric shock and risk of damage to the device
• Always make sure the power is disconnected prior to disassembling the
unit and operating the mode selector switch.
The air ducts going into the house can either be connected on the right hand side or the left
hand side of the top of the unit. The default mode is mode A. If local systems demands mode
B, follow the below procedure AND check the label in order to connect the water drainage
correctly.
Follow these steps when swopping the mode:
Step Action Illustration
1 Place new B-sticker on top of the
unit.
2 Remove the upper part of the
front cover.
3 Release the two screws at the up-
per left and right corner (under-
neath the upper part of the front
cover).
4 Remove the remaining part of the
front cover.
5 Place new calibration sticker on
the heat exchanger.
6 Remove the cover of the main
PCB.
7 Switch A-B switch on the main
PCB to mode“B”.
Introduction
Warning
Caution
CAUTION
Selecting mode
Swopping to
mode B
Table continues on next page
1
4
5
2
3
A B

17
8 Swop the drain hose and plug as
indicated.
For a further description of the
drain hose installation, see page
20.
9 Swop the lter (ONLY if the addi-
tional pollen lter F7 is used).
• Check the table on page 8
in order to determine the right
position of the F7 lter during
mode A/B.
10 Connect the duct as specied on the label and described on page 20.
11 Calibrate the unit as described on page 22.
Insucient device performance and ventilation eect
• Any wired accessory must be swopped/ installed according to the current operating
mode A/B.
Mode A Mode B
Warning
Caution
CAUTION
Installation options, continued
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Installation
This section will guide you through unpacking, mounting and installation.
Using a device outside the specied conditions and contrary to its designated use will lead
to the forfeiture of all warranty claims. Warranty is restricted to units, installed by trained and
certied personnel only.
Step Action
1 Report any obvious damage to the carrier, parcel service, postal service etc. immedi-
ately on delivery and note down the damage on the shipping document or carrier’s
document.
2 Remove the packaging material completely (without using a knife) and dispose of
according to the local regulations.
3 Check the content of the box. The scope of delivery includes:
• HCV 400 unit
• 1x Wall bracket
• 2x Spacers
• 1x Drain hose
4 Should any transport damage be detected after unpacking of the device, or should
the delivery be incomplete, contact your salesman in charge or specialised dealer
without delay.
The following should be considered selecting an appropriate location for installation:
• Verify whether installation mode A (Standard) or B (Optional) is feasible for the installation
site. If mode B is preferred, follow the swopping procedure on page 16.
Note: The swapping function between mode A and B provides ability to route the pair of
ducts (outside or inside) towards the unit from the left OR the right, according to building
and room construction. See the dierence between the two modes in the “Overall descrip-
tion” on page 8.
• The HCV 400 unit is designed to be mounted in dry surroundings, with temperatures
>12°C, utility room or similar heated rooms.
• Allocate additional space, to ensure correct mounting and serviceability.
• Ensure that the walls structure is adequate to support the weight of the unit, regardless of
bracket type.
Introduction
Warranty claims
Transport and
unwrapping
Installation
considerations

19
Installation, continued
Follow these steps, when mounting the HCV 400 unit to the wall.
Step Illustration
Secure the wall bracket
using these measure-
ments. Ensure you use
suitable screws and
rawl-plugs.
220 mm
12 mm
540 mm
516 mm
220 mm 12 mm
540 mm
516 mm
Mount the two spacers
at the bottom and back
of the unit.
Mount the rubber strip
and lift the unit up onto
the wall rail.
Wall mounting
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Installation, continued
Connect a drain hose to the correct drain valve at the base of the unit. The unit is manufac-
tures with blanked drain, see marking at the top of the unit (A/B mode).
IMPORTANT:
Make sure that the cap is moved to the correct drain if you change between A/B mode,
as otherwise condensate cannot be led out of the unit, and this will then lead to an inadvis-
able buildup of water in the unit and the risk of water ingress in the house!
The drain hose must be supplied with a min. 100 mm siphon as shown in Fig. 9. Guide the
hose to the drain and make sure it does not get exposed to frost.
Fill the siphon with min. 0.5 L water.
Fig. 9
Material damage (e.g. water damage)
Heat recovery of air with a high moisture content leads to condensation in the heat exchang-
er. Condensate must be led into a drain, as it otherwise can damage the oor under the unit.
• Make sure that the drain hose is installed according to the current operating mode.
Step Description
1 Make sure that the ducts, which are connected to the unit, have the same diameter
as the connector or larger. The dimensions can be seen in the technical data section
on page 34.
2 Please consult the product description at page 8 to determine the correct duct
connection (A/ B mode).
3 See if the unit has to be installed with or without a silencer and connect the ducts
accordingly (see illustration below).
4 Wrap minimum 50 mm insulation around all four ducts.
Drain
Warning
Caution
WARNING
Connecting ducts
Without silencer:
Connect ducts via (NPU) nipple
With silencer:
Connect ducts to the spigots on the silencer
(The silencer is already tted with spigots)