Air Trade Centre Mergen M4512 User manual

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V.03-23
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Installation Manual
Mergen
INSTALLATION INSTRUCTIONS

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CONTENTS
CONTENTS ............................................................................................................................................... 2
INTRODUCTION ....................................................................................................................................... 6
MANUFACTURER ..................................................................................................................................... 7
GUARANTEE ............................................................................................................................................ 7
SAFETY ..................................................................................................................................................... 8
PERSONAL PROTECTIVE EQUIPMENT ................................................................................................ 8
PREVENT PERSONAL INJURY AND DAMAGE TO PRODUCT .............................................................. 8
PRODUCT LABELS, INFORMATION AND WARNING LABELS .............................................................. 8
GENERAL SAFETY AND PREVENTION ................................................................................................. 9
GENERAL ............................................................................................................................................... 10
PURPOSE OF USE .............................................................................................................................. 10
CE MARKING AND EU DECLARATION OF CONFORMITY ................................................................. 10
MAINTENANCE ................................................................................................................................. 10
EXTENDED WARRANTY .................................................................................................................... 10
SPARE PARTS .................................................................................................................................... 11
DISMANTLING AND DECOMMISSIONING ........................................................................................ 11
INSTALLATION INSTRUCTIONS ......................................................................................................... 11
GENERAL TECHNICAL DESCRIPTION ...................................................................................................... 12
MERGEN SERIES ................................................................................................................................ 12
CASING .............................................................................................................................................. 12
FILTERS .............................................................................................................................................. 12
HEAT EXCHANGER ............................................................................................................................ 12
FANS AND MOTORS ......................................................................................................................... 13
DUCT CONNECTIONS ........................................................................................................................ 13
DELIVERY CONFIGURATION AND BASIC FRAME ............................................................................. 13
POSSIBLE OPTIONS ........................................................................................................................... 13
POSITIONING OF THE COMPONENTS .............................................................................................. 14
DESCRIPTION OF THE MODEL .......................................................................................................... 15
DIMENSION TABLE ........................................................................................................................... 16
Horizontal setup (landscape model) ............................................................................................. 16
Vertical arrangement (standing model) ........................................................................................ 17

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ELECTRICAL SUPPLY .......................................................................................................................... 18
DELIVERY ............................................................................................................................................... 19
TRANSPORT ...................................................................................................................................... 19
STORAGE ........................................................................................................................................... 20
MOUNTING ........................................................................................................................................... 21
ATTENTION DURING ASSEMBLY ...................................................................................................... 21
REQUIRED SPACES ............................................................................................................................ 21
DUCT CONNECTIONS ........................................................................................................................ 22
COIL CONNECTIONS .......................................................................................................................... 24
DRAIN CONNECTIONS ...................................................................................................................... 24
ELECTRICAL CONNECTIONS .............................................................................................................. 25
POWER SUPPLY ................................................................................................................................ 26
START-UP .............................................................................................................................................. 27
TO CHECK BEFORE THE START-UP .................................................................................................... 27
MAINTENANCE ...................................................................................................................................... 28
BEFORE TO START THE MAINTENANCE ........................................................................................... 28
ATTENTION DURING MAINTENANCE............................................................................................... 28
REGULAR MAINTENANCE ................................................................................................................. 28
Fan: ............................................................................................................................................... 28
Changer: ........................................................................................................................................ 29
Filter: ............................................................................................................................................. 29
Coil: ............................................................................................................................................... 29
Drainage: ....................................................................................................................................... 29
Housing: ........................................................................................................................................ 29
TROUBLESHOOTING .............................................................................................................................. 31
DISPLAY, KEYS AND LEDS ...................................................................................................................... 32
DISPLAY ............................................................................................................................................. 32
KEYS AND LEDS ................................................................................................................................. 32
ACCESS RIGHTS ..................................................................................................................................... 33
SIGN UP ............................................................................................................................................. 33
SIGN OFF ........................................................................................................................................... 34
CHANGE PASSWORD ........................................................................................................................ 34
LANGUAGE ............................................................................................................................................ 34
VERSION NUMBER ................................................................................................................................ 34
THE MENU SYSTEM ............................................................................................................................... 35
NAVIGATE THROUGH THE MENUS .................................................................................................. 35

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CHANGE PARAMETERS ..................................................................................................................... 36
OPERATING MODE UNIT .................................................................................................................. 37
ALARM EVENTS ................................................................................................................................ 37
IN/OUT ACCESSES ............................................................................................................................ 37
Analogue inputs: ........................................................................................................................... 37
Digital Outputs: ............................................................................................................................. 37
SET POINT VALUE FOR TEMPERATURE CONTROL OF SUPPLY AIR .................................................. 38
SET POINT VALUE WEATHER-DEPENDENT SUPPLY AIR CONTROL ................................................. 38
DEFROSTING EXCHANGER ................................................................................................................ 38
AIR CONTROL ........................................................................................................................................ 39
MODE 1: STANDARD CONTROL ....................................................................................................... 39
MODE 2: CO2 CONTROL ................................................................................................................... 39
MODE 3: CONSTANT PRESSURE CONTROL ...................................................................................... 40
MODE 4: CONSTANT FLOW CONTROL ............................................................................................. 40
MODE 5: CONSTANT FLOW - CO2 CONTROL ................................................................................... 41
TIME SETTINGS ...................................................................................................................................... 42
GENERAL ........................................................................................................................................... 42
TIME/DATE ....................................................................................................................................... 42
TIMER LOW SPEED, NORMAL SPEED ............................................................................................... 42
MANUAL/AUTO ..................................................................................................................................... 43
PID CONTROLLERS ................................................................................................................................. 43
TEMPERATURE CONTROL ................................................................................................................ 44
FAN CONTROL .................................................................................................................................. 44
SAVE AND RESTORE SETTINGS ......................................................................................................... 44
ALARM HANDLING ................................................................................................................................ 45
INSPECT ALARMS .............................................................................................................................. 45
ACKNOWLEDGE, BLOCK and UNBLOCK ALARMS ............................................................................ 45
ALARM LIST ....................................................................................................................................... 46
INDICATIELEDS ...................................................................................................................................... 48
STATUS INDICATION ......................................................................................................................... 48
BATTERY REPLACEMENT ....................................................................................................................... 49
COMMUNICATION ................................................................................................................................ 50
MODBUS ........................................................................................................................................... 50
BACNET ............................................................................................................................................. 51
COMMON SIGNALS ............................................................................................................................... 52

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Coil status ......................................................................................................................................... 52
Input Registers .................................................................................................................................. 52
Holding Register - Setpoint settings ................................................................................................ 53
Input Status ...................................................................................................................................... 54
CONTROLLER MENU MAP ..................................................................................................................... 57
NOTES.................................................................................................................................................... 58

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INTRODUCTION
This user manual contains important information on the correct and safe use of the MERGEN devices.
Therefore, please read the user manual completely before using the device. Otherwise, there may be
danger to persons and damage to the product.
The unit has a rating plate on the front. The rating plate contains the
serial number and the required markings for identifying the unit.
The controller manual is valid for all ATC MERGEN (M45xx) models equipped with an integrated
controller.
Control
mode
Type
Description
Mode 1
Standard regulation
Automatic temperature control of supply air
with
external compensation, % low flow - % high flow -
time based LS / HS speed switching
Mode 2
CO2 control
Automatic temperature control with external
compensation, % low flow -% high flow - CO2
concentration based LS/HS speed switching
Mode 3
Constant
pressure control
(Automatic temperature control of supply air with
external compensation, % low flow -% high flow -
Pulse channel pressure based LS/HS speed switching
Mode 4
Constant Flow Control
Automatic temperature control of supply air with
external compensation, constant low flow rate in
m³/h - constant high flow rate in m³/h - time-based
LS / HS speed switching
Mode 5
Constant Flow CO2 control
(Automatic temperature control of supply air with
external compensation, constant low flow rate in
m³/h - constant high flow rate in m³/h - CO2
concentration based LS/HS speed switching.
It describes the functions available to users with the access rights of an Operator or below, as well as
Admin functions specific to installation and startup.

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MANUFACTURER
ATC Air Trade Centre A.Ş.
Headquarters:
İbrahim Karaoğlanoğlu Caddesi No: 101
34418 Seyrantepe / Istanbul, TURKEY
Factory:
POSB 14. Cad. No:15
35875, Pancar / Torbalı / Izmir, TURKEY
GUARANTEE
The warranty period starts from the date of delivery of the product and is standard 2 (two)
years for MERGEN devices.
All parts of the product manufactured by ATC Air Trade Centre are covered by our company's
warranty.
In case of failure of the product within the warranty period, the time spent on the repair will
be added to the original warranty period. The Product's repair period will not exceed 30
working days. This period starts from the date of notification of the product defect.
During the warranty period of the product, defects in the product due to defects in material,
workmanship and factory assembly will be corrected free of charge.
Faults that result from using the product contrary to what is stated in the operating
instructions and faults that are due to the user's fault are not covered by the guarantee.
Accessories and devices used on our products that are not manufactured by our company are
not covered by our company's warranty.
The warranty is not valid in the case of repairs and modifications made without ATC Air Trade
Centre's written consent and if the unit is not used as specified in the contract with ATC Air
Trade Centre. Damage caused by negligence, lack of maintenance or failure to follow ATC Air
Trade Centre's recommendations is not covered by the warranty.

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SAFETY
Observe all safety instructions in this document and all warning labels on the air handling unit.
Failure to observe the safety instructions may result in injury to persons or damage to products.
PERSONAL PROTECTIVE EQUIPMENT
Personal protective equipment should always be used according to the risks presented in the
workplace and has to comply with national laws and regulations.
The following personal protective equipment is recommended when the job requires it:
Safety shoes with steel toe caps
Hearing protectors
Safety helmet
Gloves
Safety glasses
Covering clothes
Protective coverall
Mouthguard/protective mask
Fall protection
PREVENT PERSONAL INJURY AND DAMAGE TO PRODUCT
To avoid personal injury or damage to air handlers, observe the following:
Read the entire document before working on the unit.
Comply with national and local laws and regulations for safety at work.
Do not wear loose clothing or jewelry that could get caught.
Do not step on or climb on the unit.
Use the recommended tools and equipment intended for the job.
Use recommended personal protective equipment when work requires it.
Observe the product signs, information and warning labels on the device.
Keep the device clean and follow the operating and maintenance instructions.
Make sure all covers are in place, inspection hatches are closed and lockable inspection
hatches are locked before operating the unit and after repairs/maintenance.
Use suitable fall protection when working at height - normally over 2 metres. Even work at
lower heights may require protective measures.
PRODUCT LABELS, INFORMATION AND WARNING LABELS
Keep labels and stickers free from dirt and replace them if they are lost, damaged or illegible. Contact
ATC Air Trade Centre for replacement labels, quoting the item number.

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GENERAL SAFETY AND PREVENTION
All persons concerned must familiarise themselves with these instructions before starting work on the
Mergen devices. Any damage to the device or its components caused by improper handling or use by
the purchaser or installer cannot be considered as covered by the guarantee if these instructions have
not been followed correctly.
The device must always be operated with the doors and panels closed. The service doors should only
be opened after you have made sure that the device is switched off.
Check that there are no foreign objects in the unit, duct system or functional parts. The unit should
not be operated while there are no duct connections. If the unit is installed in a cold location, make
sure all connections are covered with insulation and properly taped.
All electrical connections must be carried out by a qualified electrician and in accordance with local
regulations and controls.
Make sure that the power supply to the unit is disconnected before carrying out any maintenance or
electrical work!
Although the mains supply to the unit has been disconnected, there is still a risk of injury from rotating
parts that have not come to a complete stop.

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GENERAL
PURPOSE OF USE
Mergen devices are designed for use in comfort ventilation applications.
The device must be protected from excessive moisture and water. Devices used outdoors must be
fitted with a roof.
The device must be protected against shock and vibration.
Electrical connections to the device must never come into contact with water. Electrical cables
between the mains & device must be protected from water and impact.
The device must be used in accordance with its design form. If the device is designed horizontally, it
must be used horizontally; if it is designed vertically, it must be used vertically.
Depending on the variant chosen, MERGEN devices can be used in buildings such as office buildings,
schools, public buildings, residential buildings, shops, etc.
MERGEN devices are equipped with plate heat exchangers and can be used for ventilation of
moderately humid buildings; however not where humidity is continuously high, nor for ventilation of
explosive and corrosive atmospheres or for ventilation of oily environments.
Please feel free to contact us if you need a unit suitable for such an application.
CE MARKING AND EU DECLARATION OF CONFORMITY
The Mergen devices are CE marked, which means that on delivery they comply with the applicable
provisions in the EU Machinery Directive 2006/42/EC.
Directive 2006/42/EC and to other EU directives applicable to the types of air handling units, e.g.
Pressure Equipment Directive PED 2014/68/EU.
For units without integrated control equipment
The CE declaration only applies to units in the version in which they were delivered and installed at
the factory in accordance with the enclosed installation instructions. The declaration does not apply
to components added subsequently or which have been added to the unit.
MAINTENANCE
Maintenance of Mergen devices can be performed by the person who normally maintains the building
or through a contract with a reputable service company.
EXTENDED WARRANTY
In cases where the delivered equipment is covered by an extended warranty up to 5 years, in
accordance with the specifically agreed conditions (*), a Service and Warranty Logbook will be
requested.
To claim an extended warranty, the book must be fully documented and signed.
(*) The specific warranty conditions can be requested from your local distributor.