Dantherm HCC 2 Manuel utilisateur

HCC 2 (ALU, PLA, E1)

SERVICE MANUAL

en • de • fr • es • da • nl Rev. 1.0 • 2020-W09-1

3

Introduction: Table of contents

en

Introduction

Table of contents

This service manual covers the following main topics:

Table of contents

Introduction .....................................................................3

Table of contents ......................................................................3

Overview .............................................................................4

Declaration of conformity .............................................................5

Product description ..............................................................6

Overall description ....................................................................6

Components description ..............................................................9

Accessory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

System operation strategy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Installation .................................................................... 12

General location requirements. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installation options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Connecting additional equipment ....................................................21

Initial calibration .....................................................................24

Operation (user) ................................................................ 26

Overall ventilation functions .........................................................26

User Rights. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Maintenance and care .......................................................... 28

Preventative maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Trouble shooting .....................................................................31

Spare parts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Appendix ...................................................................... 33

Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Schematics. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35

Week program specication ..........................................................36

4

Introduction: Overview

Overview

This is the service manual for the Dantherm HCC 2 residential ventilation unit. Part number of

this service manual is 052322 and covers units with serial numbers from 1402281329260

This manual is for both installers and users of the product.

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 HCC 2 unit. Warranty is restricted to units, installed by trained personnel

only.

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.

The unit 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.

This units 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 following shortages for ventilation terminologies.

Short Description

T1 Outside air coming into the unit

T2 Supply air from the unit to the home

T3 Extract air from the home to the unit

T4 Exhaust air from the unit

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. See more at page 15

Mode B Indicating operation mode B.(reverse fan) See more at page 15

G4 Standard air lter class

F7 Filter class, better and absorbs ner grains than G4 lter

BP Bypass damper

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 Personel computer running MS Windows

USB Universal serial bus connection– located on almost any computer

LAN Local area network is the internal network with or without wireless access

VOC Volatile organic compounds sensor, controls the ventilation level depending on

the pollution of the air.

PC Tool Windows software application specic for this unit.

Manual

Target group

Warning

Caution

WARNING

Warning

Caution

WARNING

Copyright

Reservations

Recycling

Shortages in this

manual

5

Introduction: Declaration of conformity

en

Declaration of conformity

Dantherm hereby, declare that the unit mentioned below:

No.: 352444 Type: HCC 2

- 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 (incl. Regulation 2014/1253)

2011/65/EU RoHS Directive

1907/2006/EC REACH Regulation

- and is manufactured in compliance with the following 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

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

Skive, 30.06.2019

Declaration of

Conformity

6

Product description: Overall description

Product description

Overall description

HCC 2 residential ventilation unit is designed to supply fresh air to residential home, by ex-

changing heat from outgoing air to incoming air, resulting in low heat energy loss.

These units are designed for installation underneath a ceiling, in dry surroundings, with tem-

peratures >12°C. e.g. utility room or similar heated rooms.

The duct connections can be electronically swapped, providing ability to route the connected

ducts, either to the right or to the left, as described on page 15

This illustrates the unit, without the steel drip tray:

1

13 14 15

2 3 5 6

7

9

811

12

10

4

Fig. 1

This table shows the parts according above illustration:

Pos Mode A(default) Mode B

1 Extract lter G4 Supply lter G4 or F7

2 Bypass module*

3 USB connection

4 Mode switch A / B on the side panel

5 Controller PCB (external connections see page 21)

6 Supply lter G4 or F7 Extract lter G4

7 Extract air - T3 Outside air - T1

8 Blocked Water drainage spigot

9 Supply air - T2 Exhaust air-T4

10 Outside air - T1 Extract air - T3

11 Water drainage spigot Blocked

12 Exhaust air – T4 Supply air - T2

13 Extract fan Supply fan

14 Heat exchanger

15 Supply fan Extract fan

*Accessory

Introduction

Product illustration

Part description

7

Product description: Overall description

en

There are three dierent variants of the HCC 2 unit: ALU, PLA, 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 lter (see below).

Fig. 2

This illustration shows the two air ow paths, through the unit. The airow direction will

change if changing operation mode. See more about changing operation mode at page 16

Fig. 3

HCC 2 variant

ALU, PLA, E1

Airows

8

Product description: Overall description

This illustration shows where all the sensors are placed inside the unit. See also “Part descrip-

tion” on page 6

Sensor 1Sensor 3

Mode A

RH% / VOC

Mode B

RH% / VOC

Sensor 2 Sensor 4

Fig. 4

Sensor function according operation mode:

Sensor Mode A Mode B

1 Outside air - T1 Extract air - T3

2 Supply air - T2 Exhaust air-T4

3 Extract air - T3 Outside air - T1

4 Exhaust air – T4 Supply air - T2

Sensor placement

9

Product description: Components description

en

Components description

This section describes the individual components which are included in the HCC 2 unit. Please

use the illustration on page 6 for reference.

Cabinet outer parts are made of aluzink coated sheet metal, nished with powder paint. The

inner part is one moulded polystyrene block. If adding accessory or exchanging parts, access

to all parts are available, just by removing the front cover and drip tray.

The cabinet is internal sound and heat insulated, with re retardant polystyrene foam. The

unit´s cabinet is designed for mounting in 12°-40° C ambient temperature

The counter ow heat exchanger absorbs the heat energy from extract air and moves this

heat energy to the ingoing supply air, resulting in domestic ventilation with low heat loss.

The supply fan supplies fresh outdoor air through the unit’s heat exchanger to the ducts,

where it´s distributed to bedrooms, living rooms and possibly sauna or steam bath.

The extract air fan draws used, moistened and polluted air from house, through the unit

and heat exchanger, in which the heat is absorbed and moved to supply air. Finally the air is

exhausted to the outside.

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´s main controller is placed at the main PCB.

While the HCC 2 ALU and E1 units are equipped with an RH sensor in the extract duct, the RH

sensor will be available as an accessory for the HCC 2 PLA variant. 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 an 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.

The unit is standard equipped with two G4 class cassette lter. These lters protects the

heat exchanger, and improves the inside environment by remove dust and particles, in both

airows. F7 class lter can be purchased. If F7 is used, this is always placed in the supply air,

removing even smaller particles.

The unit are equipped with 2 pcs. spigot connections for draining condensed water. It is

mandatory to t the spigot next to the T4 with a hose, discharging the condensed water to a

sever. Correct drainage is shown on the connection label placed on the unit. The remaining

un-used drain is to be blocked with the enclosed cap. 1 meter drain hose is delivered with the

unit.

The unit is delivered with hanging rail.

Introduction

Cabinet

Heat exchanger

Fans

Bypass damper

Controller

Humidity sensor

(not included in

HCC 2 PLA)

Filters

Water drainage

Hanging rail

10

Product description: Accessory

Accessory

The unit is delivered from factory, without any accessories mounted. These are to be installed

prior to initial unit installation or alternative after commissioning, if further functionality is

requested. The detailed installation of one or more accessories, is illustrated on the leaet fol-

lowing each accessory .

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.

The preheater is an external enclosure, connected and controlled by the HCC 2 controller.

For controlling HCC 2 units,

Dantherm recommends using the

display equipped remote control,

designed specic for this range of

units.

CO2

RH%





°

°

°

°

AUTO

*

Ikoner for manual

A wired remote control (HCP 10/11) without display can be

connected to the unit as an alternative to the hand held remote

control.

Connect a number of additional accessories to the

HCC 2 unit via an accessory controller: HAC 2.

HCC 2 can be tted with Humidity (RH%) (if

not already included as standard) and/or VOC

(organic chemicals) sensors. These sensors will

continuously monitor the extract air, and adjust

the air ow level accordingly. This will result in

adequate level of ventilation, with lowest pos-

sible electrical power consumption. If a remote

control is connected, the sensor level will be

shown in the display using 3 level icon.

Replacement of lters in sets of 2 standard lters or 1 standard plus 1 F7 (pollen) lter.

Introduction

Electric preheating

Hand held Remote

control

Fig. 5

Wired Remote

Control

(HCP 10/11)

Fig. 6

Accessory control

(HAC 2)

Fig. 7

VOC and humidity

sensors

Fig. 8

RH% VOC

Filters

11

Product description: System operation strategy

en

System operation strategy

This section describes the operation strategy in various conditions. For a user specic running

operation see page 26.

In cold conditions where T1 is below -4°C and exhaust T4 is <+8°C the condensed water could

built up as ice in the heat exchanger, blocking the air path and eventually destroying the heat

exchanger.

In order to prevent this sequence is initiated:

• The supply fan speed will decrease with 3 rpm/second until minimum RPM is reached.

• After 10 seconds at this speed the supply fan will stop completely, while the ongoing

exhaust fan is supplying warmer air into the heat exchanger component, to remove any

potential ice.

• When T4 yet again is >+8°C the supply fan will start at minimum RPM, and then increase

speed with 3 rpm/second until the original required speed is regained.

• If T4 becomes <+2°C during the speed increase cycle, the supply fan will decrease speed

again.

• If T1<= -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 under pressure inside the house, so if replace mode is

enabled, and defrost is necessary; the unit will stop all operation in 4 hours instead. Set-

points cannot be changed.

When defrost is active any connected remote control will showin the display, and

when defrost has shut all o, the display will ash the T1 temperature

If the preheater is installed, the unit will add electrical heat to the T1 incoming outside air, in

order to reduce defrost situations, and increase the supply air temperature.

• Preheater can be “master” enabled/disabled on the wireless remote control in installer

mode

• 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.

Temperature set-points are xed.

Introduction

Defrost

Preheat

(Accessory)

12

Installation : General location requirements

Installation

General location requirements

The HCC 2 must full all of the previous consideration prior to starting any installation pro-

cess.

The following should be considered selecting an appropriate location for installation:

1. The HCC 2 units, is designed to be mounted in dry surroundings, with temperatures

>12°C. Utility room or similar heated rooms.

2. The HCC 2 can be mounted vertically or horizontally. Please ensure that the ceiling or

walls structure is adequate to withstand the additional weight of the unit.

3. The air ow direction can be electronically swapped, providing ability to route the con-

nected ducts, either to the right or to the left. See more about swapping at page 16.

4. It is mandatory to tilt the HCC 2 minimum 1° towards the drain. The enclosed bracket will

automatically provide this requirement.

The HCC 2 is designed for hidden installation.

It is very important to leave additional space:

• Adequate space for exchanging the unit if needed, including turning the unit into its

bracket and up, if mounting underneath the ceiling.

• External preheater (accessory), which is mounted external into the duct system on the T1

incoming outside air, minimum 320 mm from the unit.

• Additional space, in order to inspect and test any drainage hose, also if no preheater is

installed..

This applies also for after sales situations, where the unit is to be dismounted completely for

service. Any warranty claim will not be acknowledge if these above requirements are not

fullled.

See min. measurements on page 13.

If installing the unit underneath the ceiling, please reserve space for the tilting up/down, and

additional space, if electrical preheater is installed.

Additional space dimensions here shown in operation mode A

80

620

1122

320

80 1122 320

620

1 2

Fig. 9

Introduction

Location and duct

connections

Reserve additional

space

Service space,

ceiling

13

Installation : General location requirements

en

and here shown in operation mode B

80

620

1122

320

80 1122 320

620

12

Fig. 10

No Description

1 This space is mandatory in order to lift the unit upwards in its wall bracket. Please AL-

WAYS mount the bracket and reserve this space, at the unit end, in which the T1 and

T4 (cold ducts) are connected. If preheater is installed, this additional space is require

to make future service if needed.

2 In order to be able to mount the screws into the ceiling properly, please add mini-

mum this space shown

If installing the unit onto the wall, always have the T1 and T4 (cold ducts) in the bottom of the

unit. If the unit has additional preheater, please allow space for this as well, see illustration.

70

1122

110

620

550

Pre-heater space

Fig. 11

Service space, wall

14

Installation : Installation options

Installation options

HCC 2 has a variety of installation options such as vertical or horizontal mounting, exible

cable routing and duct connections making the unit adaptable to dierent locations. Check

the installation options and decide how the installation best fulls the local demands.

Please ensure that the ceiling or walls structure is adequate to withstand the additional

weight of the unit.

Remember to reserve the mandatory service space.

All cable connection can be routed inside the unit, for exit through both end plates. This ena-

bles the installer to route and connect cables in best suitable way.

Option 1 Option 2

Introduction

Vertical or

horizontal

Fig. 12 Fig. 13

!NOTICE

Cable routing

15

Installation : Installation options

en

The air ducts going into the house can either be connected on the right hand side or the left

hand side. The default mode is mode A. (Follow procedure on page 16 for swopping to

mode B)

Illustration of duct connections in operation mode A:

086374 - Connection - HCC 10092014

Rechtsversion(B)

Right unit

unità destra

Linksversion(A)

Left unit

unità sinistra

Tear here

2

1

21

Remove if bypass is present

Fig. 14

Illustration of duct connections in operation mode B:

086374 - Connection - HCC 10092014

Rechtsversion(B)

Right unit

unità destra

Linksversion(A)

Left unit

unità sinistra

Tear here

2

1

21

Remove if bypass is present

Fig. 15

Selecting

mode A or B

16

Installation : Installation options

If local systems demand mode B, follow the below procedure AND check the label in order to

connect the water drainage correctly.

Step Action Illustration

1Locate the small punched lid on

the long side of the unit closest to

the lter lids.

Release the screw and pull out in

the upper punch line, to bend the

sheet metal plate

2Locate the switch on the main PCB

The default is mode A as shown. To

select mode B slide the switch to

the right. Close the lid again.

A - B

3Swop the drain hose and plug as

indicated.

For a further description of the

drain hose installation, see page

20.

Mode A

Mode B

4 Move humidity sensor (and VOC

sensor if installed) to the sensor

position for mode B.

Mode A Mode B

5Swop the lter (ONLY if the op-

tional pollen lter F7 is used for the

supply air).

• Check the table on page 6

in order to determine the right

position of the F7 lter during

mode A/B.

6Place new B sticker and calibration sticker on the unit.

7Connect the duct as specied on the label and described on page 19.

8Calibrate the unit as described on page 24.

Swopping to

mode B

A B

17

Installation : Mounting

en

Mounting

The enclosed bracket can and should be used, both for wall and for ceiling installation. The

bracket will automatically tilt the unit 1° towards the condensate drain, when mounted un-

derneath the ceiling.

Please follow this procedure to install the HCC 2 vertical onto a wall.

Step Action Illustration

1

Drill two holes for the

bracket, fullling all dimen-

sion requirements shown in

the section “General location

requirements” on page 12.

8 mm

4 mm

3 mm

8 mm

4 mm

3 mm

11

12

14

2Mount the bracket with ap-

propriate screws

3 Lift the unit onto the bracket

4

Drill and mount two appro-

priate screws in the lower

unit bracket

5

Connect ducts according il-

lustration at page 15

IMPORTANT: the T1 and T4

outside air ducts, must AL-

WAYS be routed to the duct

connections in the bottom

6Connect ducts and drain

hose.

Multi purpose

mounting bracket

Fig. 16 Fig. 17

Wall mounting

18

Installation : Mounting

Please follow this below procedure for ceiling installation

Step Action Illustration

1 The HCC 2 should always

tilt minimum 1° towards

the drain side(T4). This is

achieved when using the

enclosed bracket, placed at

T4 end of unit.

Drill two holes and mount

the bracket into the ceiling

conguration setup (see

page 17)

Please allow minimum 320

mm to the ceiling edge,

in order to have room for

turning the unit in step 2.

8 mm

4 mm

3 mm

320 mm

2 Lift the unit onto the

bracket hanging freely as

shown

8 mm

4 mm

3 mm

3 Turn the unit towards the

ceiling, and secure it with

two screws

8 mm

4 mm

3 mm

4 Connect ducts and drain hose.

Under ceiling

installation

19

Installation : Mounting

en

Connect ducts (specication according local regulations), with spigot connection only.

WARNING: NEVER screw any spigot for ducts, directly onto the sheet metal of the unit.

Fig. 18

Insulate the ducts according local requirements, taking the installation surrounding tempera-

ture into consideration.

Make sure that all ducts are well attached and secure, and ALWAYS xed securely to the ceil-

ing or wall with brackets

Bracket Bracket

Fig. 19

Connect duct

system

Secure ducts

20

Installation : Mounting

It is mandatory in any HCC 2 installation to connect a water drain hose to the unit, because

the humidity from the extract air condensates to water drops when cooled in the heat ex-

changer.

This water is harmful to its surrounding if not managed correctly. The installation thus needs a

condensate water drain hose connected with a decline of minimum 10 Promille (1 cm/meter)

away from the unit and the hose must NEVER exceed the level of the lower sheet metal plate.

Faulty installation

The drain hose must never be raised above

the bottom plate!

Fig. 20

After guiding the hose downwards to a drain, it needs a closing loop. This will block air from

escaping through the hose. Please make either a complete closed loop, or a siphon loop on

the hose as illustrated, and make sure it has a minimum height of 100 mm. Fill the siphon/

loop with min. 0,5 l. water before connecting the hose to the unit.

or

100 mm

Fig. 21

Drainage

consideration

Correct installation

The drain hose has a correct and steady fall

towards the sewer.

Condensate

drainage

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