Euroclima ZHK NANO User manual

ZHK NANO
INSTRUCTION MANUAL

Instruction and Operation Manual ZHK NANO
V09-18.1 1 / 113
In addition to the instructions in this guide,
subject-specific standards, as well as local, national and
international regulations must be observed.
!
Please give this instruction manual after completion of
the work to the operating staff of the AHU. Please
keep the complete instruction and operating manual at
your documents.
!
Betriebsanleitung!
Instruction manual!
Manuale d’istruzione!
ET 174-0

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Table of contents
1Introduction ............................................................................................................................ 6
1.1 Model code...................................................................................................................... 6
1.2 Intended use / foreseeable misuse .................................................................................. 7
1.2.1 Intended use ........................................................................................................................7
1.2.2 Foreseeable misuse.............................................................................................................7
1.3 Modular design................................................................................................................ 7
1.4 Documentation ................................................................................................................ 8
2Safety instructions / Guidelines to conformity to laws and directives ............................... 8
2.1 CE-conformity / installation instructions for safe operation............................................... 8
2.1.1 CE-conformity / incorporation declaration according to Machinery Directive 2006/42/EC ..8
2.1.2 Installation instructions for the proper installation in the building system............................9
2.2 Indications for minimizing specific hazards .................................................................... 10
2.2.1 General indications ............................................................................................................10
2.3 Conformity to laws and directives .................................................................................. 12
2.3.1 General ..............................................................................................................................12
2.3.2 Conformity to VDI 6022......................................................................................................12
2.4 ErP conformity according to directive (EU) 1253/2014................................................... 13
2.5 Staff selection and qualification ..................................................................................... 13
3Reception control / unloading / transportation to installation site ................................... 14
3.1 Reception control .......................................................................................................... 14
3.2 Unloading / transportation to installation location........................................................... 15
3.3 Lifting of ZHK Nano units............................................................................................... 16
3.3.1 Weight specifications of units or unit parts ........................................................................16
3.3.2 Mounting of crane lugs.......................................................................................................17
3.4 Further necessary actions for the overlifting of both, delivery sections on crane lugs as
well as monoblocs ......................................................................................................... 19
3.5 Storage.......................................................................................................................... 20
4Foundation / erection ........................................................................................................... 20
4.1 Foundation .................................................................................................................... 21
4.2 Erection......................................................................................................................... 22
4.2.1 Potential risks that may arise through the erection site .....................................................22
4.2.2 Actions to prevent potential risks .......................................................................................22
4.2.3 General indications for the erection ...................................................................................22
5Assembly .............................................................................................................................. 24
5.1 Assembly of casing........................................................................................................ 24
5.1.1 Actions before the assembly of casing ..............................................................................24
5.1.2 Standard connections and connection components..........................................................25
5.1.3 Assembly of delivery sections............................................................................................26
5.1.4 Special features for roof units and device separations at wet areas .................................26
5.2 Doors ............................................................................................................................ 28
5.3 Dampers........................................................................................................................ 30
5.4 Filters ............................................................................................................................ 30
5.4.1 Laterally removable prefilters.............................................................................................31
5.4.2 Laterally removable bag filters with clamping mechanism ................................................31
6Installation ............................................................................................................................ 33
6.1 Heat exchanger connection ........................................................................................... 33
6.1.1 General notes ....................................................................................................................33
6.2 Drain for condensate and excess water......................................................................... 35
6.2.1 Standard siphons ...............................................................................................................35
6.2.2 Ball siphons........................................................................................................................37
6.3 Duct connection –airside connection to AHU ................................................................ 38
6.3.1 Insulation of fresh air damper ............................................................................................40

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7Electrical connection............................................................................................................ 40
7.1 Connecting to an external protective conductor system................................................. 40
7.2 EC motors ..................................................................................................................... 41
7.3 Repair switch (emergency stop switch).......................................................................... 42
7.4 Electric heaters.............................................................................................................. 42
7.4.1 AHUs equipped from EUROCLIMA with control................................................................43
7.5 Frost protection for plate heat exchanger ...................................................................... 45
7.6 Lighting.......................................................................................................................... 45
8Commissioning..................................................................................................................... 46
8.1 Preliminary steps........................................................................................................... 46
8.1.1 Airflow measurement by differential pressure measurement at the fan ............................46
8.1.2 Heat exchanger..................................................................................................................48
8.1.3 Electric heater ....................................................................................................................48
8.1.4 Filters .................................................................................................................................48
8.2 Test run......................................................................................................................... 48
9Maintenance.......................................................................................................................... 49
9.1 Electrical connection, control cabinet............................................................................. 49
9.2 Fan / motor group.......................................................................................................... 50
9.2.1 Fan .....................................................................................................................................50
9.2.2 Motor ..................................................................................................................................50
9.3 Air filters ........................................................................................................................ 50
9.3.1 Panel filters ........................................................................................................................51
9.3.2 Bag filters ...........................................................................................................................51
9.4 Heat exchangers ........................................................................................................... 52
9.4.1 Medium water ....................................................................................................................52
9.4.2 Electric Heater ...................................................................................................................53
9.5 Dampers........................................................................................................................ 53
9.6 Weather louver .............................................................................................................. 53
9.7 Energy recovery systems .............................................................................................. 54
9.7.1 Plate heat exchangers .......................................................................................................54
9.7.2 Heat wheels .......................................................................................................................54
9.8 Maintenance plan .......................................................................................................... 54
10 Information on airborne noise emitted by the air conditioning units - on request .......... 55
11 Disassembly and disposal................................................................................................... 56
11.1 Disassembly.................................................................................................................. 56
11.2 Disposal ........................................................................................................................ 57
12 Display .................................................................................................................................. 59
12.1 Push buttons, rotary button............................................................................................ 59
12.2 Display .......................................................................................................................... 60
12.3 Password ...................................................................................................................... 60
12.4 Operation, value entry ................................................................................................... 60
Line with submenu.......................................................................................................... 61
Value, setpoint................................................................................................................ 61
Selection, setting, function.............................................................................................. 61
ESC-button..................................................................................................................... 61
Adjustability .................................................................................................................... 62
13 Main / start page ................................................................................................................... 62
13.1 All settings..................................................................................................................... 63
14 Setpoints / settings .............................................................................................................. 63
14.1 Fan setpoints................................................................................................................. 64
14.1.1 Operating mode of the fan control .....................................................................................64
Airflow rate control.......................................................................................................... 64
Pressure control ............................................................................................................. 65
Speed control ................................................................................................................. 66

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14.2 Temperature setpoints................................................................................................... 66
14.2.1 Operating mode of the temperature control.......................................................................66
Return air cascade (RetCasc) ........................................................................................ 67
Supply air........................................................................................................................ 67
Return air........................................................................................................................ 67
Room cascade (RoomCasc)........................................................................................... 68
Room.............................................................................................................................. 68
14.2.2 AHU with 3 batteries (saturation temperature) ..................................................................69
14.2.3 Supply air limitation............................................................................................................69
14.2.4 Summer / winter compensation .........................................................................................69
14.2.5 Setpoint and control variable .............................................................................................70
14.2.6 Recirculation damper .........................................................................................................70
14.3 Humidity setpoints ......................................................................................................... 71
14.3.1 Control mode for humidification and dehumidification .......................................................71
14.3.2 Return air control ...............................................................................................................71
14.3.3 Supply air control ...............................................................................................................71
14.3.4 Dehumidification with cooling battery ................................................................................71
14.3.5 Dehumidification with recirculation damper .......................................................................72
14.3.6 Dehumidification with damper / cooling, cooling / damper ................................................72
14.3.7 Setpoints ............................................................................................................................72
14.4 Air quality setpoints ....................................................................................................... 72
14.4.1 Sensor type, control procedures........................................................................................73
CO2 sensor .................................................................................................................... 73
Recirculation damper...................................................................................................... 73
Fan speed....................................................................................................................... 73
14.5 Night setback................................................................................................................. 74
15 Operating mode / scheduler ................................................................................................ 75
15.1 Operating modes........................................................................................................... 76
15.2 Scheduler ...................................................................................................................... 76
15.2.1 Weekdays ..........................................................................................................................76
15.2.2 Exception day(s) ................................................................................................................77
15.2.3 Calendar fix off (AHU fix off) ..............................................................................................78
15.2.4 Date / time setting ..............................................................................................................79
16 Room unit.............................................................................................................................. 80
17 Alarm state............................................................................................................................ 81
18 Password handling............................................................................................................... 82
19 Language selection .............................................................................................................. 82
20 Application info .................................................................................................................... 82
21 Alarm display........................................................................................................................ 83
21.1 General ......................................................................................................................... 83
21.2 Alarm list, alarm list detail .............................................................................................. 84
21.3 Alarm history ................................................................................................................. 85
21.4 Alarm lists configuration ................................................................................................ 85
21.5 Alarm index ................................................................................................................... 86
22 Introduction and configuration............................................................................................ 91
22.1 Access levels................................................................................................................ 91
22.2 Configuration of communication interfaces .................................................................... 91
22.2.1 Modbus RTU......................................................................................................................92
22.2.2 BACnet MS/TP...................................................................................................................93
22.2.3 BACnet IP ..........................................................................................................................94
22.2.4 LON....................................................................................................................................95
22.2.5 Modbus RTU/ IP controller interfaces................................................................................96
23 Data points AHU ................................................................................................................... 98

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Figure index .............................................................................................................................. 111
Table index................................................................................................................................ 113
-translation from original instruction manual -

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1 Introduction
1.1 Model code
ZHK INOVA S 15/6 –15/6
AHU type (standard)
AHU execution
Unit size supply air
Unit size exhaust air
Legend used for AHU type
ZHK 2000
ZHK INOVA
ZHK NANO
standard housing type
thermal bridge reduced housing type
standard product with plate heat exchanger
ETA XXX
key ETA: including control
ETA XXX COOL
including refrigeration circuit
ETA MATIC
standard
ETA POOL SPA
compact AHU for pool dehumidification with refrigeration
circuit (option)
ETA POOL OLYMPIC
for pool dehumidification including plate heat exchanger
and refrigeration circuit
ETA PT
heat recovery by plate heat exchanger
ETA ACCU
heat recovery by accumulator
ETA ROT
heat recovery by heat wheel
ETA WP
refrigeration circuit, heat pump function
ETA PAC
indirect adiabatic cooling
CLEANLINE
for hygienic use, including control
Design key AHU execution
S
AHU for indoor installation
DG
AHU for outdoor installation
I
AHU Industrial –heavy version of the panels
HG
AHU hygienic execution
Legend for the unit size
Example 15/6: the first index (15) corresponds to the clear width, the second index (6) to the clear
height. According to the following table, the dimensions in mm are 15/6 = 1525 x 610 mm (clear
width x clear height)
This information applies both to the ratios of the supply air and the exhaust air.
Index
3
4
6
9
12
15
18
21
24
Dimension (mm)
305
457,5
610
915
1220
1525
1830
2135
2440
Index
27
30
33
36
39
42
45
48
Dimension (mm)
2745
3050
3355
3660
3965
4270
4575
4880

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1.2 Intended use / foreseeable misuse
1.2.1 Intended use
An AHU is used, depending on the chosen model, to create a desired indoor air quality. Parame-
ters are…
-air change
-air temperature and humidity
-to filter normal contaminated air
-in special cases for filtering air for clean room applications
The units are suitable for…
-an ambient air temperature range of –20 °C to + 70 °C and for the supplied air from –20 °C to
+ 40 °C
-handling of normal air
-for the operation within the agreed technical data
Operation at other conditions must be agreed in writing.
If products and components of other manufacturers are used, those must be recommended or ap-
proved by EUROCLIMA.
On-site changes are in full safety responsibility of the operator.
1.2.2 Foreseeable misuse
Other than above use, is considered as improper and must be excluded totally:
-The commissioning of equipment, prior performing the steps indicated in the assembly instruc-
tions and operating with an open fan unit door is a serious security risk.
-Opening the unit, without securing the repair switch in the off position, represents a massive
security risk.
-The operation of an AHU equipped with electric heater while fan-motor is cut off, or if fan is
working at a limited airflow for example caused by closed dampers or similar, but with electric
heater in operation produces an imminent fire risk.
-The operation in an explosive atmosphere is prohibited.
-Handling of air with corrosive / aggressive components.
-Pressure-sided doors can detach suddenly while opening. So there is a risk of injury for the
user. See chapter 5.2 Doors.
1.3 Modular design
Because of the modular AHU design, the manual covers all the possible sections and components
which can be delivered. The ordered range is smaller and can be seen on the technical data sheet
- see chapter 1.4 (Documentation).
In this manual treated parts / components that are not part of the delivered AHU, can therefore be
disregarded.

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1.4 Documentation
The AHU will be delivered with the following documentation:
Instruction and operation manual ZHK NANO
Cardboard box / nylon bag in the fan section
Depending on AHU type and execution, the following documentation is included:
Components operation manual
cardboard box / nylon bag in the fan section
AHU drawing
applied on each delivery section and
glued on the inside of the fan section door
Wiring diagram
In control cabinet
Depending on type of accessories, the following documentation is included:
K-value for airflow measurement
glued on the inside of the fan section door
The above mentioned documentation must always be available when working on the AHU!
You will also find stickers with warning labels and other instructions on and inside the AHU.
In this manual and on labels used symbols:
Indicate safety instructions –or yellow triangle with the corresponding threat picto-
gram
Indication to avoid damage
In addition to the contents of this manual, the instruction manuals of the component manufacturers
must be followed. These will be delivered separately or can be downloaded from the homepage of
the component manufacturer. In case of contradiction between this manual and instruction manu-
als of the component manufacturer for safety instructions, the most restrictive interpretation is
valid. At differences between this manual and the instruction manual of the component manufac-
turer, the instruction manual of the component manufacturer has to be applied. In case of doubt,
please contact your EUROCLIMA office.
2 Safety instructions / Guidelines to conformity to laws and directives
2.1 CE-conformity / installation instructions for safe operation
2.1.1 CE-conformity / incorporation declaration according to Machinery Directive
2006/42/EC
An AHU (or any part thereof) supplied by EUROCLIMA is by definition of Machinery Directive
2006/42/EC an incomplete machine, because it is limited in function and is only a part of the build-
ing system. Accordingly, for a safe operation before the initial start-up, the general in chapter 2.1.2
(Installation instructions for the proper installation in the building system) and in particular in
the following chapters described on-site work must be carried out for a safe operation.
Depending on the scope of supply a CE-conformity declaration or a declaration of incorporation will
be issued. A declaration of incorporation will be issued, if supplementary work on site is necessary

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to gain the CE-conformity. This applies if no frequency converter, which is necessary, or no filter
manometer is included in delivery (see chapter 2.4).
2.1.2 Installation instructions for the proper installation in the building system
For the proper installation of AHU equipment and the safe operation of the system, depending on
the configuration of the AHU, before the first start at least the following points must be imple-
mented or upgraded on responsibility of the client:
Assembly of delivery sections
The deliver sections of the AHU must be assembled and linked together, according to the drawing
supplied on the inner face of fan section door. See the chapter 4 (Foundation / erection) and
chapter 5 (Assembly).
Secure inlet and outlet openings
All the inlet and outlet openings must be connected to ducts or respectively equipped with grilles,
to prevent effectively access from the outside to moving parts (such as fan wheels) during opera-
tion.
Repair switch
See chapter 7.2 (EC motors).
Installation of filters
See chapter 5.4 (Filters).
Temperature limitation
By a control system must be ensured, that the AHU is only operated with a supply air temperature
below the allowable maximum (40 °C, when not stated otherwise in the technical data). For this
purpose, the continuous monitoring of the supply air must be ensured on site.
Measures regarding noise attenuation
As basis for on-site sound measures calculation (such as for sound attenuators) the on request
available sound data can be used. Information regarding the emitted sound power level over the
openings see the technical data sheet, which is available on request –refer to chapter 10 (
Information on airborne noise emitted by the air conditioning units - on request).
Measures to minimize the risk of water damage or damage caused by similar media
See chapter 4.2.2 (Actions to prevent potential risks).
Connection to an external protective conductor system
See chapter 7.1 (Connecting to an external protective conductor system).
Electric heater
Installation (if not supplied by EUROCLIMA) and connection of thermostats for safety shutdown,
see chapter 7.4 (Electric heaters).
Frost protection for plate heat exchangers
See chapter 7.5 (Frost protection for plate heat exchanger).
Siphons
Connecting according to chapter 6.2 (Drain for condensate and excess water).

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Flexible connection
Installations (if not supplied by EUROCLIMA) refer to chapter 6.3 (Duct connection –airside
connection to AHU).
Heat exchanger
For all heat exchangers which are connected on-site, irrespective of the medium used (water, wa-
ter-glycol mixture...), it must be ensured by the customer that the resulting assembly meets the
pressure equipment directive, PED '2014/68 / EU.
Field equipment for roof units
On site mounted field devices for roof units, e.g. damper position motors or pressure switches must
be weather-protected in case of insufficient IP class and - depending on the installation situation -
possibly also protected against icing.
Frost protection for heat exchangers
Venting, draining of heat exchangers
See chapter 8.1.2 (Heat exchanger).
2.2 Indications for minimizing specific hazards
2.2.1 General indications
An improperly performed maintenance can pose a security risk!
Risk of thin sheets, when working on AHU
During work on AHU (or on parts), there is a substantial risk of cutting with thin
sheets as e.g. roof sheets, fins of heat exchangers, corners and edges - Use per-
sonal protective equipment: wear protective helmet, gloves, safety shoes and long
protective clothing.
Lighting
For work on AHU (maintenance and inspection work) is to provide adequate lighting.
Firefighting in case of fire
In general, the local fire protection regulations must be observed.
-If the AHU is part of the smoke extraction concept, then the specifications
of this concept have to be observed.
-Otherwise, the power supply of the AHU must be interrupted immediately
at all conductors. In addition, the dampers must be closed to consequently
prevent oxygen supply and fire spread.

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Exposure to harmful substances in case of fire
In case of fire, some materials can produce noxious substances. In addition,
harmful vapors can escape from the unit. Therefore, severe respiratory protective
equipment is required and the danger zone has to be avoided.
Exposure to rotating parts / hot surfaces / electrocution
When working on and/or in the AHU note the following risks:
Indentation of body parts in moving parts (, fan impeller, external damper gear
wheels ...).
Burns and scalds on hot AHU components such as heat registers, heat exchang-
ers, ...
Electrocution on current-carrying parts such as electric motors, frequency convert-
ers, electric heaters, control cabinets, interior lighting etc.
Therefore must be ensured prior working on and/or in the unit, that…
-all current-carrying parts, such as cable plug connections, fan motors, valves, motors and elec-
tric heaters are disconnected from the power supply by using the repair switch (emergency
stop) and that the switch is locked in position 'off' in order to effectively prevent a re-activation
during the work. The housing of the AHU interior lighting (can have separate supply) is not cur-
rent-carrying.
-all moving parts, especially fan wheel, motor and heat wheel have come to a standstill; wait at
least 5 minutes after switching off before opening the doors.
-Remove the key from doors with door lock before entering in the casing of the AHU. Keep the
key out of reach of unauthorized persons.
-Check that the hot media supply is interrupted and all the heat registers, heat exchangers, etc.
are cooled to ambient temperature.
In case of standstill of the plant (e.g. power failure), the repair switch is always to
check. Only when it is in the off position and secured against unintentional restart,
appliance doors can be opened, cable plug connections can be disconnected and
work on the device can be carried out.
Start of the AHU
Be ensured after working and before the start that…
-nobody is in the AHU.
-all protective devices are working, (optional safety devices such as door guard mounted again)
and doors equipped with door locks are locked and the keys are removed –refer to chapter
5.2 (Doors).
Storage of potential energy in gases and fluids
All heat exchangers can be operating up to a maximum pressure of 15 bar. If the
media is under higher pressures, the safety and tightness cannot be guaranteed.

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Preventing the risk of explosion and fire spread
To prevent the fire spreading, fire dampers shall be installed into the ducts be-
tween the fire compartments.
Prevention of exposure caused by antifreeze agents
Avoid body contact with antifreeze agents, because they may cause burns. Wear
appropriate protective clothing (e.g. gloves, goggles, ...).
In case of fire, avoid the danger zone and meet different safeguards. It is recom-
mended to wear a mouth guard, because of the risk of poisoning by inhaling the
vapors.
Prevention of hazards caused by suddenly falling out door panels while opening of remova-
ble panels
Removable door panels can fall out after detaching the connections and lead to in-
juries. Particular at pressure-sided doors must be carefully, because they can firstly
adhere and then suddenly detach. User must be able to carry the weight of the
door. At doors with a surface of > 0.5 m² two persons are necessary.
Please note the instructions on the unit and subsequent instructions exactly.
2.3 Conformity to laws and directives
2.3.1 General
The AHU will be built and delivered according to the agreed specifications and exactly to your re-
quirements. Due to the fact, that the AHU is a part of a system and that the unit is only after as-
sembling and connection to the system ready for operation, it is normal, that the AHU is ready for
operation only after plumber-work.
Depending on the particular application and country-specific requirements and laws it is possible,
that the AHU does not meet the valid requirements at the ordered state at delivery.
Therefore, you –the customer and plumber of the AHU –are obligated –before commis-
sioning of the AHU to check the conformity of the entire system to the valid laws and di-
rective.
If there are any doubts about the conformity of the AHU with the local (on site) valid laws and direc-
tives, the AHU is just allowed to put into operation, if the conformity of the unit in the system is une-
quivocal guaranteed.
2.3.2 Conformity to VDI 6022
The ZHK Nano basic unit complies with the hygiene requirements of VDI 6022.
Tub in the outside-air intake section
The AHU ZHK Nano is not equipped with a tub in the outside-air intake section as standard. In or-
der to fulfill the requirements of VDI 6022 a tub must be installed in the area of the fresh air intake
section, depending on the location of the AHU. Additionally, the entrance of water, fog, snow etc.
has to be prevented by a measure on site. If necessary an additional intake plenum with drain-pan
has to be provided.

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On request an appropriate plenum can be offered. For this purpose contact your EUROCLIMA-
partner.
Maintenance-friendly accessibility of all components
All components of the air handling system have to be accessible on inflow and outflow side. This
means that ducts with access door have to be provided on site in order to provide the accessibility.
Intake grids at openings of outdoor units
According to VDI 6022 all intake openings have to be equipped with an intake grid (mesh size 20 x
20 mm).
Such intake grids are not delivered by default by EUROCLIMA, but it is possible to order them as
an option. Anyway, the mounting of intake grids at all intake openings has to be ensured on site.
Door adjustment at outdoor units
Hinged doors at outside units have to be secured by an appropriate fixture against shutting. Such
equipment are not delivered by default by EUROCLIMA, but it is possible to order them as an ac-
cessory. Anyway, the system operator is responsible for ensuring such appropriate measures.
Manometer for filter monitoring
According VDI 6022 at a volume flow > 1000 m³/h manometer have to be installed for filter moni-
toring. These could be ordered at EUROCLIMA as an option. Anyway, the filter monitoring has to
be ensured on site.
2.4 ErP conformity according to directive (EU) 1253/2014
The ErP directive (energy related products) determines minimum requirements to the efficiency of
air handling units. Important points, for which the system operator is responsible, are:
Multi staged control
All AHU`s, except those with double application, have to be equipped with multi staged drive or
speed control for fans. See chapter 7 (electrical connection). Filter change indicator
If one or more filter stages belong to the unit equipment, than they have to be equipped with an op-
tical display or an acoustic warning in the controlling. They will be triggered if the pressure drop at
the filter exceeds the maximum permissible value. See chapter 9.3 (air filters).
If above mentioned equipment is not included in delivery of EUROCLIMA, it has to be provided on
site.
2.5 Staff selection and qualification
All persons, who are authorized to work on the air conditioner, must have read and understood this
manual - in particular chapter 2 (Safety instructions). Before this is not guaranteed, the person
may not begin to work on the AHU.
All work must be carried out by professionals who have sufficient technical training, experience and
sufficient knowledge of…
-Locally applicable safety and occupational health rules
-Locally valid accident prevention regulations
-Locally applicable standards and approved rules of practice.
All professionals have to recognize and assess the work, recognize and avoid potential hazards.

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Execution of the assembly, installation, electrical connection, commissioning and disposal:
-by qualified electricians and AHU technicians.
Execution of maintenance / monitoring of the operation:
-by technical staff or trained personnel and qualified electricians and AHU technicians.
Subsequently, warning triangles indicate warnings that must be followed to minimize risks to per-
sons who are entrusted with the work on the air conditioner.
3 Reception control / unloading / transportation to installation site
3.1 Reception control
-Upon arrival of the equipment, please check immediately the package for completeness and
damage.
-Loose supplied parts and assembly materials are in a nylon bag or a box in the unit.
-If damages are found, immediately a damage report must be created and sent to EUROCLIMA.
Only then the transport company can make the claim against the insured (Note damage on the
shipping documents with date and signature in the presence of the carrier). Complaints about
apparent damaged or missing parts of the delivery cannot be subsequently recognized. In case
of complaints please inform immediately the EUROCLIMA office.
-Depending on the material used and the ambient conditions, a superficial corrosion may occur
on components like e.g. motor shafts, fan shafts, clamping bushes, sheet cutting edges, and
the like. The resulting corrosion layer protects the underlying material from further corroding
and does not represent a defect of the component or the device (see also chapter 9).
The packaged delivered goods may include multiple parts of the device. In this
case, each part is secured against falling. Attention: narrow parts may tip over af-
ter removing the safeguard. Secure narrow parts against tipping over!
Thin sheet metals like roof, edges or fins are a source of injury! Gloves, safety
shoes and long work clothes must be used.
Devices shall not be climbed. If unavoidable: weight must be divided by use of boards.
Figure 1: Do not climb on the unit!

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3.2 Unloading / transportation to installation location
Forklift, lift truck transport
In accordance with the EUROCLIMA drawing the AHU will be delivered as one or more delivery
section(s). The AHU parts are delivered on pallets and can be unloaded and moved by forklift or lift
truck. Forces must always act on the base frame, see Figure 2.
A vertical lifting / transport or handling of EUROCLIMA AHU’s in any way is not al-
lowed. Exceptions have to be agreed with EUROCLIMA.
Figure 2: Transport correct
Figure 3: Transport incorrect
Center of gravity must be centrally located between the forks (see Figure 4). For large parts use
several lift trucks.
Figure 4: Center of gravity centrally between the forks
For the overlifting directly from the truck applies the following chapter 3.3 (Lifting
of ZHK Nano units).

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3.3 Lifting of ZHK Nano units
The ZHK Nano basic unit is usually delivered as monobloc, see Figure 5. If there are any addi-
tional unit sections, the same specifications apply for lifting the unit, which are described below.
Figure 5: Delivery unit monobloc
-In addition to the actions mentioned here, the instructions according to chap-
ter 3.4 (Further necessary actions for the overlifting of both, delivery
sections on crane lugs as well as monoblocs) have to be observed.
-Parts of the AHU may only be lifted with lugs individually - never screw parts
together before lifting.
-Lateral load on lifting lugs is not allowed.
3.3.1 Weight specifications of units or unit parts
Depending on the unit type, the ZHK unit or additional sections have following weights, see Table
1. The delivered crane lugs may be used for lifting ZHK Nano units which have these maximum
weights. It is required, that the weight is equally distributed on all 4 correctly mounted crane lugs. If
there are more than one unit part, they must be lifted separately.
type 45
weight in kg
type 55
weight in kg
type 65
weight in kg
basic unit with plate heat exchanger
380
480
660
basic unit with heat wheel
355
465
650
optional chiller (additional part)
80
100
120
optional E-heating coil (additional part)
115
140
155
Table 1: Weight specifications ZHK Nano basic units and additional parts

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3.3.2 Mounting of crane lugs
4 crane lugs are supplied in two versions –mirror inverted. These lugs must be mounted at the
provided positions at the base frame of the unit.
Execution of the lifting lugs (see Figure 6):
1. Right-side type
2. Left-side type
Attention to correct mounting of the crane lug according Figure 8.
Figure 6: Right-side and left-side crane
lifting lug
Figure 7: Crane lug dismounted
Figure 8: Crane lug mounted
Screws and nuts are delivered with the lifting lugs and must be tightened with the torque according
to Table 2. If the lifting lugs are already mounted by EUROCLIMA, the screws must be checked
before lifting of the AHU.

Instruction and Operation Manual ZHK NANO
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Figure 9: Base frame height
Base frame height H (mm)
Screw type
Nm
80
M8x20
10
Table 2: Tightening torque for screws
-The force effect has to take place uniformly across all four crane lugs.
-The definition of the load carrying equipment is the responsibility of the executing company.
-The correct guiding of the load carrying equipment according to Figure 10 must be observed.
-After the pre-positioning of the delivery section at the desired position, remove the lifting lugs
and use them for the next delivery section.
Figure 10: Guiding of load carrying equipment (schematic illustration)
Base frame height

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3.4 Further necessary actions for the overlifting of both, delivery sections on
crane lugs as well as monoblocs
-The AHU sections or monoblocs must be lifted with appropriate equipment
e.g. belt with hook.
-The recommended minimum load capacity per load carrying equipment is
50% of the total weight of the delivery section or monobloc.
-The length of the load carrying equipment must permit a favorable course, see
Figure 11.
-The course of the load carrying equipment must be chosen so that overhang-
ing attachments, roofs and the like will not be stressed or damaged.
-Load carrying equipment shall not run over sharp edges and is not allowed to
be knotted.
-The load carrying equipment must be secured against slipping off.
-After a slow lifting from the floor for a few centimeters the correct course of the
load carrying equipment as well as the safe support of all fastening elements
should be checked.
Before further lifting it must be checked, that no abnormal deformation at the
suspension points/load carrying equipment can be detected by visual inspec-
tion.
-Avoid jerky lifting.
-Make sure that nobody is under the raised load.
-Never lift AHU sections or monoblocs on heat exchanger connections or other
attachments.
-The load carrying equipment is not permitted to exceed an angle of maximum
15 ° to the vertical and must be spread apart to avoid damage to the casing,
refer to Figure 11.
Figure 11:Permitted angle for load carrying equipment guidance
max. 15°
max. 15°