FläktGroup COM4plus Installation guide

Brand: FläktGroup

Model: COM4plus

Category: Split-system air conditioners

Type: Installation guide

OPERATION AND MAINTENANCE MANUAL

COM4plus

WITH ISYteq

We reserve the right to make changes without prior notice

FläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

1. Safety regulations ............................................................................4

Special warning and danger symbols ..................................................7

Function signs .............................................................................................. 8

2. Introduction ........................................................................................9

Document description ............................................................................... 9

Product description and intended use ................................................ 9

Control system .............................................................................................9

Environmental documentation ................................................................9

3. Unit overviews ................................................................................10

COM4plus with Rotary Heat Exchanger ............................................ 10

COM4plus with Counterﬂow Plate Heat Exchanger .......................11

COM4plus with Active mixing ............................................................... 12

4. Commissioning ............................................................................... 13

Prerequisites before commissioning ................................................. 13

List of steps ................................................................................................. 13

Setup wizard ............................................................................................... 13

Active mixing .............................................................................................. 15

CLOUD for ISYteq ....................................................................................... 15

5. Maintenance ....................................................................................16

Explanation of symbols ........................................................................... 16

Service schedule ....................................................................................... 16

To comply with VDI 6022 ventilation code of practice .................17

To clean the casing and the components .........................................17

Spare parts ...................................................................................................17

Warranty ........................................................................................................17

Casing ........................................................................................................... 18

CONTENTS

LIMITS OF RESPONSIBILITIES

Although FläktGroup has tested and reviewed the documentation contained in this manual, FläktGroup makes no warranty, neither expressed nor

implied, with respect to this manual, including its quality, performance, or ﬁtness for a particular purpose. FläktGroup shall under no circumstances

be liable for direct, indirect, special, incidental or consequential damage arising from the use or the inability to use information contained in this

manual. FläktGroup reserves the right to revise this publication at any time and to make changes to its content without prior notice and has no

duty to provide notice to previous or current owners with respect to such revisions or changes.

Filter replacement ..................................................................................... 19

Fan ..................................................................................................................20

Coils ............................................................................................................... 21

Silencer .........................................................................................................22

Plate Heat Exchanger ..............................................................................22

Rotary Heat Exchanger ...........................................................................23

6. Alarms and troubleshooting ..................................................... 25

To reset alarms ..........................................................................................25

General troubleshooting ..........................................................................25

To read the alarm text correctly ..........................................................25

Alarm list ......................................................................................................26

7. Technical data ................................................................................ 34

Connection ................................................................................................... 34

Minimum mains supply ..........................................................................38

Fan data ......................................................................................................38

Control cabinet ...........................................................................................39

Energy recovery system ........................................................................39

EMC performance .....................................................................................39

8. FAQ ..................................................................................................... 40

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

WARNING!

• Read and understand these instructions before operation or

maintenance of the air handling unit. The owner or installation

ﬁrm of the air handling unit is responsible for ensuring that

the applicable safety regulations are followed.

• Do not discard this manual.

• Before commissioning of the air handling unit, any open

connections must be protected with protective mesh.

• The air handling unit must not be commissioned until all

electrical and mechanical safety devices are installed.

• Be careful when opening the air purge connections for the hot

water supplied to the air heater. There is a risk of water hammer

or steam leakage.

• If the unit is dismantled, FläktGroup will cease to be responsible

for its compliance with the speciﬁed tightness class.

• The doors of the unit are equipped with lockable handles.

Always leave the unit locked and store the keys out of reach of

unauthorised persons.

ELECTRICAL HAZARD!

Main switch/Disconnector

• The unit is equipped with a main switch in the electrical

enclosure. The unit should be equipped also with an external

disconnector.

• Parts that are powered separately require a separate

disconnector.

• Before service or inspection, disconnect the power from all

parts of the unit. Wait at least 1 minute before opening the

inspection doors. Close all inspections doors and restore

disconnectors before restarting the unit.

SAFETY REGULATIONS

• Local rules and regulations must always be followed.

• Do not let unauthorised persons operate the unit. Only let

qualiﬁed staff members operate the unit.

• Make sure that all the included parts and tools used for

installing the unit are removed before operating the unit.

• Drain coils if there is any risk of standing water at an air

temperature below the liquid freezing point in the circuit.

• Do not use the disconnectors or main switch to start and stop

the unit.

• Only let authorized personell open the electrical enclosure. Store

the key separately.

• Before opening the electrical enclosure, the main switch must

be off.

• Before electrical work, the entire electrical enclosure must be

disconnected.

DISPOSAL NOTES

The unit contains electrical components and must not

be disposed of together with household waste. Local

and currently valid legislation must be observed!

PERSONAL INJURY!

• No matter what kind of work is performed on the unit, there is

always a risk of cuts inﬂicted by the thin sheet metal and heat

exchanger ﬁns.

• This applies especially when carrying out maintenance and

cleaning work on the ﬁn surfaces of heating and cooling coils.

• Risk of impact from the opening doors ﬁtted on the pressure

side.

• Risk of crushing resulting from negative pressure applied to

the doors on the suction side.

• Danger from the rotating parts such as fans etc.

• Danger due to the hot surfaces and/or media.

• The unit whose centre of gravity is located high up can tip over,

resulting in injury and material damage.

• During transport, pay careful attention to the unit, observe its

behaviour and stay away from any potentially hazardous areas.

• Make sure that no one is locked inside the unit. Walkable units

with a height clearance equal to or greater than 1,280 mm are

equipped with the emergency operating levers on the insides of

the doors for that purpose.

• You must secure smaller units against a person being locked in

by mistake with a padlock e.g. on the door stop.

• High concentration of refrigerant in the air can lead to death

or serious injury.

• High concentrations of refrigerant in the air can numb the

senses and lead to loss of consciousness. Prolonged exposure

may cause irregular heartbeat and sudden death. Very high

concentrations can cause suffocation due to the resulting

reduced oxygen content of the ambient air.

• Never stand beneath the suspended loads, since there is always

a risk that the lifting gear, tackle, ropes or slings are faulty

or damaged.

DAMAGE TO THE UNIT

• If the dampers are abruptly shut during the unit operation,

the unit can be damaged beyond repair as a result of negative

pressure or overpressure.

• Use only the lifting lugs provided by FläktGroup!

• Make sure that the lifting lugs are ﬁrmly secured before lifting

the load.

DAMAGE TO THE ENVIRONMENT

• Heavily contaminated ﬁlters may adversely affect production

processes. Depending on the ﬁltered substances, contaminated

ﬁlters should therefore be treated as the special waste and

must be properly disposed of in an environmentally-friendly

manner in accordance with the current directives and laws.

• Do not pollute the environment with the liquid products, refrigerants

or oils.

• Dispose of the iquid products, refrigerants or oils in accordance

with the local laws and regulations to avoid harms to

the environment.

• Ethylene glycol and propylene glycol are categorised as water

pollutants in the Catalogue. This also applies to the mixtures with

water.

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

SHIPPING DAMAGE

Damaged outside packaging

Be careful to obey the following steps in case of the outside

packaging damage:

1. Unpack in the presence of the delivery truck driver and have

the damage certiﬁed on the shipping order.

2. Inform the FläktGroup Deutschland GmbH Sales Company

immediately before installation of the unit.

• Claims cannot be processed unless the points above are

complied with.

Damaged contents if the packaging is OK

Be careful to obey the following steps in case of the contents

damage:

1. Once you have established the extent of the damage, report

the damage to the FläktGroup Deutschland GmbH Sales Company

in writing before installation of the unit.

2. Take the photographs of the damaged parts.

3. Possible shipping damage must be reported no later than 4 days

after delivery.

• Claims cannot be processed unless the points above are

complied with.

STORAGE

• Observe the permissible storage conditions between

-10 °C and +50 °C in dry, non-condensing atmosphere. Do not

remove the original packaging until just before installation.

• The original packaging is designed for shipment and transportation,

but not for permanent storage. Take the appropriate measures.

• Protect the unit up until commissioning from installation dust, dirt

and damage!

• Protect the unit from UV radiation and adverse weather.

• If units have been delivered without packaging or the packaging has

already been removed, take the appropriate measures to protect

them up until commissioning from installation dust, dirt and

the effects of weather.

• If the unit has packaging added on-site, make sure that

condensate cannot form below the packaging (make sure that

there is a clearance between the packaging and the casing).

• Always place the units on an even surface for storage or

temporary storage.

• Protect the units against bumps and knocks to avoid damage

to the casing and protruding components.

• If commissioning is not carried out within 3 months following

the delivery, the belt drive must be slackened off.

• Rotate the motor axis and fan through at least 2 revolutions

every 3 months.

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

To connect - counter hold with a pipe wrench.

Attention: ﬁre risk. Dust-laden ﬁlters are inﬂammable.

Before opening, use the main isolator to disconnect power.

Risk of injury. Wait until complete stop before opening.

Type sheet and assembly instructions attached to unit inside.

Remove these documents before the unit commissioning.

Do not start up the fan against closed dampers.

Potential equalisation.

To equalize potentials the unit must be connected to an external protective conductor

at the designated points on the base frame.

SPECIAL WARNING AND DANGER SYMBOLS

The following warning and instruction signs can be secured on the unit:

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

Fan or compressor,

generally with direction of airﬂow indicated

Unit heater/cooler for heat recovery

Air/water ECOFLOW

Noise attenuator in unit Unit heater/cooler for heat recovery

Air/steam ECOSTAT

Air ﬁlter, generally with

direction of airﬂow indicated

Unit heater/cooler for heat recovery

Air/air ECOPLAT

HEPA ﬁlter, with direction of airﬂow indicated Unit heater/cooler for heat recovery

Air/air ECOROT

Opposed-blade dampers General air humidiﬁer

Unit heater air/water

General controller

Air cooler air/water Droplet separator

Air cooler

Air/steam/refrigerant

FUNCTION SIGNS

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

INTRODUCTION

DOCUMENT DESCRIPTION

This manual contains commissioning and maintenance instructions

for COM4plus air handling units with Rotary Heat Exchanger and with

Counterﬂow Plate Heat Exchanger.

Instructions for replacement of casing parts and components are

delivered separately and not included in this document.

Note: All screenshots and text references to screen items such as

search paths are in English in this manual. If you select a different

language in the Setup wizard, the texts on the screen will be in that

language.

WARNING!

Only let qualiﬁed personnel or persons with necessary knowledge do

the operation, commissioning and maintenance procedures described

in this manual. There is a risk of injury or damage to the product if

the procedures are not done correctly. Any work on the refrigeration

circuit may only be performed by certiﬁed and licensed personnel in

accordance with the current version of Regulation (EU) No 517/2014

and Regulation (EU) No 2015/2067.

PRODUCT DESCRIPTION AND INTENDED USE

The COM4plus air handling units are used for energy efﬁcient

ventilation of normally contaminated air in for example ofﬁces,

residential buildings, schools, stores and industries.

The unit is not applicable for continuously humid environments, such

as indoor swimming facilities.

CONTROL SYSTEM

The ISYteq control system can be accessed through the touch display

or via a web browser.

ENVIRONMENTAL DOCUMENTATION

If you are not sure how to disassemble and recycle the product,

contact FläktGroup.

11 12

1515

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

UNIT OVERVIEWS

COM4PLUS WITH ROTARY HEAT EXCHANGER

The pictured unit has the supply air at the bottom left-hand side. The

unit is available with the supply air either at the top or at the bottom,

and on the right or the left.

1. Outdoor air

2. Outdoor air damper with damper actuator

3. Outdoor air ﬁlter

4. Multifunction sensor (extract air ﬂow, outdoor air ﬁlter pressure,

exhaust air temperature)

5. Rotary heat exchanger

6. Drive system rotary heat exchanger

7. Drive motor rotary heat exchanger

8. Extract air temperature sensor

9. Supply air fan with EC motor

10. Supply air

11. Extract air

12. Extract air ﬁlter

13. Multifunction sensor (supply air ﬂow, extract air ﬁlter pressure,

supply air temperature)

14. Lockable main switch

15. Cable ﬂanges

16. Touch display

17. Air handling unit controller

18. Exhaust air fan with EC motor

19. Exhaust air damper with damper actuator

20. Exhaust air

21. Base frame

22. Outdoor air temperature sensor

23. Extract air damper with damper actuator

24. Supply air damper with damper actuator

Simpliﬁed overview of installed components

3 4

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

31. Outdoor air

2. Supply air

3. Extract air

4. Exhaust air

5. Cable ﬂanges

6. Lockable main switch

7. Air handling unit controller

8. Face and bypass damper

9. Damper actuator

10. Counterﬂow plate heat exchanger

11. Drain tray

12. Extract damper with damper actuator

13. Touch display

14. Multifunction sensor (extract air ﬂow, outdoor air ﬁlter pressure,

exhaust air temperature)

15. Exhaust air fan with EC motor

16. Exhaust air damper with damper actuator

17. Outdoor air damper with damper actuator

18. Outdoor air temperature sensor

19. Outdoor air ﬁlter

20. Extract air ﬁlter

21. Extract air temperature sensor

22. Multifunction sensor (supply air ﬂow, extract air ﬁlter pressure,

supply air temperature)

23. Supply air fan with EC motor

24. Base frame

25. Supply damper with damper actuator

COM4PLUS WITH COUNTERFLOW PLATE HEAT EXCHANGER

Simpliﬁed overview of installed components

3 4

1818

20 21

26 6

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

1. Outdoor air

2. Supply air

3. Extract air

4. Exhaust air

5. Mixing damper

6. Return air

7. Outdoor air damper with damper actuator

8. Outdoor air ﬁlter

9. Multifunction sensor (extract air ﬂow, outdoor air ﬁlter pressure,

exhaust air temperature)

10. Rotary heat exchanger

11. Drive system rotary heat exchanger

12. Drive motor rotary heat exchanger

13. Extract air temperature sensor

14. Supply air fan with EC motor

15. Extract air ﬁlter

16. Multifunction sensor (supply air ﬂow, extract air ﬁlter pressure,

supply air temperature)

17. Lockable main switch

18. Cable ﬂanges

19. Touch display

20. Air handling unit controller

21. Exhaust air fan with EC motor

22. Exhaust air damper with damper actuator

23. Base frame

24. Outdoor air temperature sensor

25. Extract air damper with damper actuator

26. Supply air damper with damper actuator

COM4PLUS WITH ACTIVE MIXING

Simpliﬁed overview of installed components

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

COMMISSIONING

PREREQUISITES BEFORE COMMISSIONING

• Make sure that the unit and all components and accessories are

installed correctly.

• Make sure that the unit is installed with the accessories necessary

to decrease transmission of sound and vibrations.

• Make sure that the electrical connections are done correctly.

• Use applicable personal protective equipment to prevent injury

during commissioning.

LIST OF STEPS

Follow the instructions below regarding any parts that are included in

your unit.

1. Make sure that the unit is electrically disconnected.

2. Check that the unit is horizontal.

3. Check that the inspection doors open and close smoothly. Adjust

the hinges if necessary.

4. Check that the unit is clean on the inside and on the outside.

5. Dampers with actuators – Check that the connected dampers are

in the closed position when the damper actuators are in their end

position.

6. Filter – Check that the ﬁlter cassettes are in place and the locking

system is closed.

7. Rotor (for COM4plus with Rotary Heat Exchanger only) – Check

that the rotary heat exchanger rotates easily when pushed

manually. If not, the rotor on the COM4plus can be adjusted.

8. Manometers and ﬂow sensors – Check that the sensors are set

on 0 and connected correctly (+/–) to the test points.

9. For other functions, follow separate instructions.

10. Check that all the safety restraints have been removed.

11. Switch on disconnectors and turn on the main power switch.

12. The basic control system settings are factory conﬁgured, but

certain settings must be customised for each installation. Finish

conﬁguring the control system by going through the setup wizard

on the touch display or via a web browser on your computer.

Refer to ”Setup wizard” on page 13 for details.

13. Set the operating mode to automatic.

a. Select Operating data > Unit Main Switch > On

b. Select the operating mode tile on the dashboard.

c. Select Automatic.

14. If the unit has active mixing, do a 0-calibration. Refer to ”To do a

0-calibration” on page 15 for instructions.

15. Adjust the duct system and the air terminal devices.

SETUP WIZARD

The Setup wizard can be run on the touch display or via a web

browser on a computer with Ethernet connection to the unit. Type the

IP address 192.168.0.1 in the address bar of the web browser. In some

cases you might need to conﬁgure your LAN IPv4 address to static and

restart your computer before you can connect to the unit.

To log in and select language

• Enter user name ”Admin” and password ”Admin” and select ”LOGIN”.

If the entered information is incorrect, a notiﬁcation appears. If the

entered information is correct, the Setup wizard starts.

To navigate the Setup wizard

At the bottom of the screen there are four navigation icons.

A B DC

• To conﬁrm all settings in the current step of the Setup wizard and go

to the next step, select save (A).

• To skip to the next step in the Setup wizard without saving any

changed settings, select skip (B). It is recommended to use the skip

function if you want to use the preconﬁgured settings and be sure

that you do not change anything.

• To cancel the changes made in the current step of the Setup wizard

and restore the previous settings, select cancel (C).

• As you go through the Setup wizard, the headings in the list on

the left side of the screen become green. To go back and change

already made settings, select a green heading.

• To exit the Setup wizard, select exit (D).

Language settings

• Select a ﬂag to select the corresponding language and select save

to go to the next step.

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

Time, date and units

The ﬁrst tab (A) is selected automatically.

1. Select the dropdown menus to set the time zone.

2. Select the clock icon to set the time.

3. Select the calendar icon to set the date.

4. Select save or skip to go to the next tab (B).

5. Select the dropdown menus to set the applicable units.

6. Select save.

Edit proﬁles

You can conﬁgure up to ﬁve proﬁles. There are separate proﬁles for

Boost and Standby/Off. You can create individual time schedules for

each proﬁle.

• You can change the name on all proﬁles except the Boost proﬁle.

The Boost proﬁle starts the unit before the set start time to make

sure that the temperature is correct at the start time.

• It is necessary to have a proﬁle for night operation. In the night

proﬁle, set the temperature control mode to Nightpurge and select to

enable the unit via temperature control.

• The proﬁle tab on the far right is for Standby/Off. To activate

room frost protection for Standby/Off, select to enable the unit via

temperature control.

1. Conﬁgure the proﬁles as is necessary for your unit application.

2. Select save.

Unit operation scheduler

This step lets you create a weekly schedule where you can select

different proﬁles for different time periods. The proﬁle for unit off is

applied to the whole week until you add other proﬁles.

1. Select the week day for which you want to add a proﬁle. A popup

with three icons appear.

A C

a. Select (A) to add a proﬁle and select time period for that proﬁle.

b. Select (B) to edit the proﬁle.

c. Select (C) to close the icons popup without making any

changes.

4 4

2. To edit an already added proﬁle, select that proﬁle. A popup with

six icons appear.

D E F G H J

a. Select (D) to add a different proﬁle to the time period.

b. Select (E) to edit the currently selected proﬁle.

c. Select (F) to copy the proﬁle and apply it to another time period.

d. Select (G) to delete the proﬁle from the weekly schedule.

e. Select (H) to change the start and stop time for the proﬁle.

f. Select (J) to close the icons popup without making any changes.

3. Select the right tab (K) to set up exceptions for speciﬁc days,

weeks or months.

4. When the weekly schedule is ﬁnished, select save.

Start up settings

This step lets you conﬁgure how the unit starts depending if it is

summer or winter. You can set the temperature threshold, the startup

delays and the damper delay. Make sure that the settings are correct

for the local weather conditions.

• When the start up settings are ﬁnished, select save.

• If you are not sure how to do these settings correctly, select skip.

To set default page and ﬁnish the Setup wizard

1. Select Control schematics or Dashboard to set the default page

for the user interface.

2. Select save. A notiﬁcation asks you to restart the unit to apply all

settings.

3. Select save to restart the unit and load the selected default page.

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

ACTIVE MIXING

Active mixing is an energy recovery function using ﬂow controlled

recirculation via dampers. The function is initialized with minimization

of the differential pressure over the mixing damper. This is done with

the extract air damper or the outdoor damper, depending on the

pressure setup of the installation. After that, the mixing damper and

the outdoor damper are controlled in parallel for mixing the air.

The exhaust fan is controlled to keep the ﬂow balance in the unit. A

minimum level of fresh air can be set in each proﬁle. If full recirculation

is allowed, the exhaust air fan is stopped and the mixing damper is

fully open.

To do a 0-calibration

For correct functioning of the active mixing, it is necessary to do a

0-calibration during commissioning. The unit shows a low level alarm

on the screen until the calibration is executed.

1. Set the operating mode to automatic.

a. Select Operating data > Unit Main Switch > On

b. Select the operating mode tile on the dashboard.

c. Select Automatic.

2. Select Operating data > Control > Damper > Calibration > Set

Damper Control ODA Amount Start Calibration > On.

The automatic calibration process starts. The unit runs the fans in

stable condition at maximum speed an then at 25% of maximum

speed.

CLOUD FOR ISYTEQ

CLOUD for ISYteq is a cloud service. The connection of the air handling

unit to CLOUD for ISYteq is done differently depending on the type of

internet access.

To connect with LAN

1. Make sure that the LAN ﬁrewall allows PPTP (port 1723) and GRE

(port 47) protocols.

2. Connect an Ethernet cable between the controller and the

assigned LAN network port.

3. Select Settings and device information in the menu bar.

4. Select Conﬁguration > Network > TCP/IP > Interface.

5. Make sure that the row dyn_cloud under the section Dynamic has

green marks.

To connect with the built-in GSM modem

1. Put the GSM antenna in a position where the GSM signal can be

found.

2. Check the reported signal strength.

a. Select Settings and device information in the menu bar.

b. Select System > Diagnosis > Modem.

c. Read the value under Network state – Signal. The GSM signal is

sufﬁcient if the level is green.

3. Select Settings and device information in the menu bar.

4. Select Conﬁguration > Network > TCP/IP > Interface.

5. Make sure that the row dyn_cloud under the section Dynamic has

green marks.

Troubleshooting

Problem Solution

The row dyn_cloud does not have

green marks.

• If connected with LAN, check

the LAN firewall settings.

• If connected with the built-in

GSM modem, check the GSM

signal strength.

• Check the factory loaded

parameter settings in the

controller.

The GSM signal is not sufficient. • Move the GSM antenna to a

better position.

• Use a longer antenna cable.

Max. length 15 m.

The firewall is blocking the used

protocols for LAN.

• Contact the IT operations and

request openings in the firewall.

• Contact FläktGroup for support.

The air handling unit does not

connect to CLOUD for ISYteq.

• Check the internet settings.

• Check the controller CLOUD

settings.

• Check the CLOUD portal settings

Contact FläktGroup for support.

The air handling unit is connected

to CLOUD for ISYteq but not logged

in to the CLOUD portal.

• Log in with the user account

credentials on the CLOUD Quick

Guide delivered with the air

handling unit.

4 4

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

MAINTENANCE

EXPLANATION OF SYMBOLS

Clean

according to

instructions

General

inspection

Hygiene

standard

according to

VDI 6022

Check

function

Replace

SERVICE SCHEDULE

Service schedule including intervals (month*) within the VDI ventilation

code of practice VDI 6022, Part 1 (**)

3* 6* 9* 12*

6* 12*

12*

Casing

Filter

Fan

Coils

Silencer

Plate heat

exchanger

Rotary heat

exchanger

Plastic tubes

and parts for

measurement

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

SPARE PARTS

• Use only original FläktGroup spare parts. FläktGroup is not liable for

damages caused by spare parts that are not original.

WARRANTY

For warranty claims, a written and signed maintenance protocol and

commissioning protocol is necessary. FläktGroup will not be liable if

the product is not assembled, installed, commissioned or maintained

according to the instruction manuals included with the product.

TO COMPLY WITH VDI 6022 VENTILATION CODE OF PRACTICE

• Use a full cover and protective gloves during service and

maintenance.

• Clean all surfaces and components according to the instructions to

make sure that they are free from dirt and contaminant.

Note: We recommend that the system is never operated without

the ﬁlters. Keep a set of spare ﬁlters in stock as well.

TO CLEAN THE CASING AND THE COMPONENTS

CAUTION!

Do not use acetone, chlorine or other similar liquid solvents.

For disinfecting unit surfaces, use cleaning agents on the German

Society of Hygiene and Microbiology (DGHM) list, or which have

German Veterinary Medicine Society (DVG) or Association for Applied

Hygiene (VAH) certiﬁcation. Ensure you comply with the concentrations

and exposure times speciﬁed there. Possible cleaning agents are e.g.

BODE Microbac or DESOMED Desotop. For the correct concentration,

refer to the data sheet provided by the manufacturer and/or select a

non-visible small surface to test the solution there beforehand.

• The use of hydrogen peroxide H

or other oxidising agents for

disinfection purposes is not permitted.

• Alcohol-based solutions are not permitted due to the risk of

explosion and ﬁre.

• Treat galvanised parts with protective spray.

• Vacuum clean and dry off with a wet cloth.

• Use dish soap to clean the casing. Rinse with clean water after

using detergent.

• If necessary, disinfect the casing.

• After cleaning make sure that all surfaces are dry.

• Replace components that cannot be cleaned or have grown fungus

or mold.

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

CASING

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

FILTER REPLACEMENT

We reserve the right to make changes without prior noticeFläktGroup DC-10619-GB 2021-10-20_R0

COM4plus – Operation and maintenance manual

FAN

Page is loading ...

FläktGroup COM4plus Installation guide

Brand: FläktGroup

Model: COM4plus

Category: Split-system air conditioners

Type: Installation guide

Download PDF

report

FläktGroup COM4plus Installation guide

FläktGroup COM4plus Installation guide

Related papers

Other documents