Ruck ETA K 2500 F EOJL Owner's manual

Category
Split-system air conditioners
Type
Owner's manual
2018
163737
ETA K ... F
CONTENTS
Installation, operating and maintenance instructions
English
ruck Ventilatoren GmbH
Max-Planck-Str. 5
D-97944 Boxberg-Windischbuch
Tel. +49 7930 9211-300
Fax +49 7930 9211-166
www.ruck.eu
e original instructions were created in the
German language.
Information updated
print 12.10.2023
Subject to change
Example configuration shown
Air handling unit with heat recovery
1. FOREWORD ............................................................................... 2
2. IMPORTANT INFORMATION .................................................................. 2
3. GENERAL SAFETY INSTRUCTIONS ............................................................. 3
4. ADHERE TO THE FOLLOWING INSTRUCTIONS ................................................... 8
5. PRODUCT INFORMATION .................................................................... 8
6. DELIVERY CONTENTS ...................................................................... 10
7. TECHNICAL DATA .......................................................................... 11
8. DIMENSIONS ............................................................................. 13
9. TRANSPORT AND STORAGE ................................................................. 14
10. ASSEMBLY ............................................................................... 15
11. ELECTRICAL CONNECTION .................................................................. 19
12. COMMISSIONING .......................................................................... 22
13. OPERATION .............................................................................. 23
14. MAINTENANCE AND CLEANING .............................................................. 38
15. MODBUS COMMUNICATION INTERFACE ....................................................... 41
16. EXPANSION AND RECONFIGURATION ......................................................... 51
17. LIFETIME AND DISPOSAL ................................................................... 51
18. TROUBLESHOOTING ....................................................................... 51
19. WIRING DIAGRAM ......................................................................... 55
Made in EU
2| ETA K ... F
EN
Installation, operating and maintenance instructions
2. IMPORTANT INFORMATION
1. FOREWORD
Dear customers,
ank you for choosing our device.
Before operating the unit, please read carefully these installation, operating and maintenance instructions. If you have
any questions, please contact: (Contact details see page 1)
e data provided in these installation, operating and maintenance instructions are for the product description only. A
statement about a certain condition or a suitability for a certain application cannot be derived from our information.
e information does not release the user from his own assessments and examinations.
All rights reserved by the manufacturer, even in the event of industrial property rights.
Any disposal such as copying and distribution rights lies with us.
is manual contains important information on the safe and appropriate assembly, transport, commissioning, operation,
maintenance, disassembly and simple troubleshooting of the product.
e product has been manufactured according to the accepted rules of current technology.
ere is, however, still a danger of personal injury or damage to equipment if the following general safety instructions and
the warnings before the steps contained in these instructions are not complied with.
Read these instructions completely and thoroughly before working with the product.
Keep these instructions in a location where they are accessible to all users at all times.
Always include the operating instructions when you pass the product on to third parties.
2.1. Applicable Documents
e following documents and information on the device must be observed in addition to the installation, operating
and maintenance instructions:
Other applicable standards:
DIN VDE 0100-100
DIN EN 60204-1
DIN EN ISO 13857
DIN EN ISO 12100
VDMA 24186-1
Available documents at www.ruck.eu
Installation, operating and maintenance instructions
EC Declarations of conformity
EC-Declaration of Incorporation (Directive 2006/42/
EC)
Commissioning report
Call to Tender
Dimensioned drawing
Technical drawing DWG
Technical drawing DXF
3D STEP
Nameplate
3
EN
2.3. Warranty and liability
Our devices are manufactured to the highest technical level in accordance with the generally accepted rules of techno-
logy. ey are subject to constant quality controls. Because the products are being constantly developed, we reserve
the right to make changes to the products at any time and without prior announcement. We assume no liability for the
correctness or completeness of these installation, operating and maintenance instructions.
To ensure your warranty claims, it is imperative to provide a commissioning report and a maintenance record.
Warranty and liability claims for personal injury and property damage are excluded if they are due to one or more of
the following causes:
Improper use
Improper mounting, commissioning, operation and maintenance
Operating the device with defective and / or non-functional safety and protective devices
Failure to observe the instructions regarding transportation, installation, operation and maintenance
Unauthorized structural changes to the device
Poor monitoring and replacement of maintenance parts
Improperly performed repairs
Disasters and force majeure
3. GENERAL SAFETY INSTRUCTIONS
Planners, plant engineers and operators are responsible for ensuring that the product is installed and operated correc-
tly.
Use our devices only in perfect technical condition.
Check the device for obvious defects, such as cracks in the housing or missing rivets, screws, caps or other applica-
tion-relevant defects.
Only use the device in the power range specified in the technical data and on the nameplate.
Protection against contact and being sucked in and safety distances should be provided in accordance with DIN EN
13857.
Generally prescribed electrical and mechanical protection devices are to be provided by the client.
e locking latch can and must only be locked or unlocked with an Allen key SW8. e latches must always be
locked after closing the lids..
Safety components must not be bypassed or put out of operation.
e product may be operated by personnel with limited physical, sensory or mental capacities only if they are su-
pervised or have been instructed by responsible personnel.
Children must be kept away from the product.
2.2. Provisions and regulations
When properly installed and operated, the device complies with the applicable standards and EU Directive at the
time of its placing on the market.
In addition, observe generally valid, legal and other binding regulations of the European or national legislation as well
as the regulations in your country for accident prevention and environmental protection.
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4| ETA K ... F
EN
Installation, operating and maintenance instructions
3.2. Improper use
Any use of the product other than described in chapter “Intended use” is considered as improper.
e following points are improper and dangerous:
Delivery of explosive and flammable media or operation in potentially explosive atmospheres.
e conveyance of greasy and moist media (over 90% relative humidity).
Delivery of aggressive and abrasive media.
e installation in wet rooms.
Operation without the duct system.
Operation with closed air connections.
e use on vehicles, aircrafts and ships.
3.3. Personnel qualifications
Assembly, commissioning, operation, disassembly and service (including maintenance and repair) require basic mecha-
nical and electrical knowledge, as well as knowledge of the appropriate technical terms. In order to ensure operating
safety, these activities may therefore only be carried out by qualified technical personnel or a person under the direc-
tion and supervision of qualified personnel. Qualified personnel are those who can recognize possible hazards and
institute the appropriate safety measures due to their professional training, knowledge, and experience, as well as
their understanding of the relevant conditions pertaining to the work to be done. Qualified personnel must observe the
rules relevant to the subject area.
In this manual, there are safety instructions before the steps whenever there is a danger of personal injury or damage
to the equipment. e measures described to avoid these hazards must be observed.
Safety instructions are set out as follows:
Safety sign (warning triangle) - Draws attention to the risk.
Type of risk! - Identifies the type or source of the hazard.
»Consequences - Describes what occurs when the safety instructions are not complied with.
→ Precautions - States how the hazard can be avoided.
3.4. Safety instructions in this manual
3.1. Intended use
Our devices are incomplete machineries as defined in the EU Machinery Directive 2006/42/EC (partly completed ma-
chinery). e product is a not ready-for-use machine in terms of the machine directive.
It is intended exclusively for installation in a machine or in ventilation equipment and installations or for combination
with other components to form a machinery or installation. e product may be commissioned only if it is integrated
in the machinery/system for which it is designed and the machinery/system fully complies with the EC machinery di-
rective.
Observe the operating conditions and performance limits specified in the technical data.
Conveying and ambient temperatures must be observed according to the technical data and the nameplate.
e units are designed for use in comfort ventilation applications.
e units must not be used for ventilation of buildings where humidity is continuously high such as swimming pools,
saunas, spas.
Intended use also implies that you have fully read and understood this manual.
Improper use may result in danger to the life and limb of the user or third parties or damage to the system
or other property.
5
!
!
!
!
!
!
!
!
!
!
!
EN
General warning!
Indicates possible hazardous situations. Failure to observe the warnings may result in perso-
nal injury and / or damage to property.
Electricity warning (hazardous voltage)!
Indicates possible hazards due to electricity. Failure to observe the warnings may result in
death, injury and/or damage to property.
Hot surface warning!
Indicates possible hazards due to high surface temperatures. Failure to observe the warnings
may result in personal injury and/or damage to property.
Finger-Crushing Warning!
Indicates possible hazards due to moving and rotating parts. Failure to observe the warnings
may result in personal injury.
Overhead load warning!
Indicates possible hazards due to overhead loads. Failure to observe the warnings may result
in death, injury and/or damage to property.
Follow important information!
Instructions for safe, optimum use of the product.
Safety sign (warning
triangle)
Consequence
Electricity warning (hazardous voltage)!
»Failure to observe the hazard may result in death,
injury or damage to property.
→ Before performing any work on conductive parts, al-
ways disconnect the unit completely from the electri-
city supply and make sure that it cannot be switched
back on again.
Never reach into the impeller or other rotating or
moving parts.
»Failure to observe the hazard may lead to serious
injury.
→ Work may only be performed once the impeller has
come to a complete halt.
Never clean the internal space with flowing water
or a high-pressure cleaner. Do not use aggressive or
easily flammable products for cleaning (impellers/
housing).
Only use mild soapsuds. e impeller should be cleaned
with a cloth or brush.
General warning
»Failure to observe the warnings may result in personal
injury and / or damage to property.
→ Unauthorized repairs may cause personal injury and /
or damage to property, in which case the manufactu-
rer‘s guarantee or warranty will not apply.
Caution! Burning hazard.
»Failure to observe the hazard may result in personal
injury and/or damage to property.
→ Do not touch the surface until the motor and heater
have cooled.
Never reach into the impeller or other rotating or
moving parts.
»Failure to observe the hazard may lead to serious
injury.
→ Work may only be performed once the impeller has
come to a complete halt.
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6
M5
f
f
1
2
F7
F5
!
!
i
!
i
F7
F5
1.
°C
f
f
2
1
!
i
F7
F5
1.
°C
f
f
2
1
163867
!
i
F7
M5
163865
!
i
F7
M5
| ETA K ... F
EN
Installation, operating and maintenance instructions
Air filter (Panel Filter) Filter
class ISO ePM1 (F7)
Air filter (Panel Filter) Filter
class ISO ePM10 (M5)
Connection condensate
drainage
Heat exchanger (Counter
cross-flow heat exchanger)
Bypass
Read the operating manual
before commissioning the
product.
Connections for the heating
coils
3.5. Safety labels on the product
Fig. 3-1
Safety labels
Electrical heating coil
Fig. 3-2
Safety labels
Heater
7
163863
!
i
F7
M5
EN
Fig. 3-3
Safety labels
Units without heating/cooling
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8| ETA K ... F
EN
Installation, operating and maintenance instructions
4. ADHERE TO THE FOLLOWING INSTRUCTIONS
4.1. General instructions
Persons who assemble, operate, disassemble or maintain our devices must not be under the influence of alcohol,
drugs or pharmaceuticals that may affect perception and responsiveness.
Responsibilities for the operation, maintenance and regulation of the product should be clearly determined and
observed so that there can be no unclear areas of responsibility with regard to safety.
4.2. Indications assembly
Disconnect all of the product‘s poles from the mains before installing the product or connecting or removing plugs.
Make sure that the product cannot be switched back on again.
Lay cables and lines so that they cannot be damaged and no one can trip over them.
Information signs must not be changed or removed.
4.3. Indications Commissioning
Make sure that all electrical connections are either used or covered. Commission the product only if it is installed
completely.
e power switch must always be fully functional and easy accessible!
Only authorized personnel is allowed to operate the setting mechanisms of the components or parts, under the
provision that the system is used as intended.
In an emergency, or if there is a fault, or other irregularities, switch the equipment off and make sure it cannot be
switched back on again.
e technical data given on the rating plate must not be exceeded.
4.4. Indications during operation
5. PRODUCT INFORMATION
Description:
e unit is an air handling unit with integrated counterflow heat exchanger for optimal heat recovery. Integrated in the
unit are large panel filter ISO ePM1/ ePM10, warm water heating coil or electric heating coil (depending on version)
and control electronics. e device has a remote control for controlling and setting the operating parameters. e high
quality housing consists of a frameless sheet metal structure with smooth internal and external walls. e housing is
insulated with 40 mm mineral wool. e unit can be operated at a constant volume. e control system, in conjunction
with external sensors, enables demand-based ventilation.
Frameless casing manufactured from galvanized steel sheet.
Extractable counter cross-flow heat exchanger.
Hot water coil or electrical heating coil (depending on the type)
Extractable large panel filters ISO ePM10 (M5) / ISO ePM1 (F7)
Controller installed, wired, ready to plug in.
Main / Isolator switch
External control unit with control cable.
9
163218
1
23
2 4
3
24
2
12
13
160647
163736
6
11
7
21 8
135636
!
i
M5
F7
15
9
14
20
10
19
22
18
17
16
5
EN
1. Housing
2. Maintenance cover
3. Isolator switch
4. Cover with condensate tray
5. EC-fan
6. Cable glands
7. Rating plate
8. Connection heating coil
9. Connection supply air
10. Connection extract air
11. Connection condensate drainage
12. Remote control
13. Remote control cable
14. Hot water coil or electrical heating coil (depending on the type)
15. Supply air temperature sensor
16. Controller board
17. Safety labels
18. Switchboard cover
19. Extracted air temperature sensor
20. Air filter ISO ePM10 (M5) - extract air
21. Counter cross-flow heat exchanger
22. Air filter ISO ePM1 (F7) - supply air
23. Connection intake air
24. Connection exhaust air
5.1. Device description
Fig. 5-1
Fig. 5-2
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10
SN
| ETA K ... F
EN
Installation, operating and maintenance instructions
5.2. Nameplate
ATTENTION! e information on the nameplate must always be observed!
Legend:
Imax Max. current consumption
tA / tMMax. ambient temperature / Max. medium temperature
P1N Rated power consumption
nNRated speed
ErP Data ErP Conformity, if required according to Reg. 327/2011
η Overall efficiency
N Efficiency at the optimum energy efficiency
ID Item number
SN Serial number
Air direction arrow
Protection class
Product name
Test date
CE marking
UKCA marking
6. DELIVERY CONTENTS
1 x Ventilation unit with heat recovery
2 x EC Fan
1 x panel filter ISO ePM10 (M5)
1 x panel filter ISO ePM1 (F7)
1 x main heater (Hot water coil or electrical heating coil, depending on the type)
1 x counter cross-flow heat exchanger
1 x bypass flap with actuator
1 x remote control with control cable
1 x Installation, operating and maintenance instructions
EC Declarations of conformity
EC-Declaration of Incorporation (Directive 2006/42/EC)
EAC marking
Insulation class motor
ErP 2015
Fig. 5-3 Nameplate
11
ETA K 700 F OOJR
ETA K 700 F OOJL
ETA K 700 F EOJR
ETA K 700 F EOJL
ETA K 700 F WOJR
ETA K 700 F WOJL
ETA K 1300 F OOJR
ETA K 1300 F OOJL
ETA K 1300 F EOJR
ETA K 1300 F EOJL
ETA K 1300 F WOJR
ETA K 1300 F WOJL
163295 163709 163292 163708 163217 163710 163793 163790 163787 163784 163799 163796
230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 400V
3~N
400V
3~N 230V ~ 230V ~
50 50 50 50 50 50 50 50 50 50 50 50
370 370 3370 3370 370 370 700 700 6700 6700 700 700
3,2 3,2 16,0 16,0 3,2 3,2 3,9 3,9 13,0 13,0 2,6 2,6
1x16A 1x16A 1x16A 1x16A 1x16A 1x16A 1x16A 1x16A 3x16A 3x16A 1x16A 1x16A
------ ------
40 40 40 40 40 40 40 40 40 40 40 40
870 870 870 870 870 870 1500 1500 1500 1500 1450 1450
3570 3570 3570 3570 3570 3570 2520 2520 2520 2520 2510 2510
860 860 860 860 860 860 800 800 800 800 800 800
80 80 80 80 80 80 78 78 78 78 78 78
60 60 60 60 60 60 61 61 61 61 61 61
61 61 61 61 61 61 60 60 60 60 60 60
80 80 80 80 80 80 80 80 80 80 80 80
57 57 57 57 57 57 56 56 56 56 56 56
138,0 138,0 138,0 138,0 138,0 138,0 245,0 245,0 247,0 247,0 247,0 247,0
164186164186164186164186164186164186 164187164187 164187164187164187 164187
X X X X
X X X X
EN
7. TECHNICAL DATA
Product name
Item number
Voltage UNV
Frequency fNHz
Rated power consumption PNW
Max. motor current Imax A
Fuse device
Fuse external electric heater
Max. medium temperature tM°C
Max. air volume m³/h
RPM 1/min
Max. primary static pressure Pa
Sound power level supply air LWA 6 dB(A)
Sound power level extract air LWA 5 dB(A)
Sound power level outdoor air LWA 5 dB(A)
Sound power level exhaust air LWA 6 dB(A)
Sound power level casing LWA 2 dB(A)
Weight kg
Wiring diagrams No.
Heating coil warm water
Electrical heating coil
external electrical heating coil
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12 | ETA K ... F
ETA K 1700 F OOJR
ETA K 1700 F OOJL
ETA K 1700 F EOJR
ETA K 1700 F EOJL
ETA K 1700 F WOJR
ETA K 1700 F WOJL
ETA K 2500 F OOJR
ETA K 2500 F OOJL
ETA K 2500 F EOJR
ETA K 2500 F EOJL
ETA K 2500 F WOJR
ETA K 2500 F WOJL
163731 163734 163717 163732 163730 163733 163756 163758 163755 163757 163743 163745
230V ~ 230V ~ 400V
3~N
400V
3~N 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~ 230V ~
50 50 50 50 50 50 50 50 50 50 50 50
1200 1200 7200 7200 1200 1200 1600 1600 1600 1600 1600 1600
5,0 5,0 13,0 13,0 5,0 5,0 7,0 7,0 7,0 7,0 7,0 7,0
1x16A 1x16A 3x16A 3x16A 1x16A 1x16A 1x16A 1x16A 3x16A 3x16A 1x16A 3x16A
- - - - - - - - 3x32A 3x32A - -
40 40 40 40 40 40 40 40 40 40 40 40
2060 2060 2060 2060 1985 1985 3030 3030 2975 2975 2975 2975
2970 2970 2970 2970 2960 2960 3050 3050 3050 3050 3050 3050
1120 1120 1120 1120 1120 1120 1280 1280 1280 1280 1280 1280
84 84 84 84 83 83 85 85 85 85 85 85
65 65 65 65 65 65 66 66 66 66 66 66
64 64 64 64 64 64 65 65 66 66 66 66
85 85 85 85 85 85 85 85 85 85 85 85
61 61 61 61 61 61 63 63 63 63 63 63
248,0 248,0 250,0 250,0 250,0 250,0 355,0 355,0 355,0 355,0 355,0 355,0
164188164188164188164188164188164188 164189164189 164189164189164189 164189
X X X X
X X
X X
EN
Installation, operating and maintenance instructions
Product name
Item number
Voltage UNV
Frequency fNHz
Rated power consumption PNW
Max. motor current Imax A
Fuse device
Fuse external electric heater
Max. medium temperature tM°C
Max. air volume m³/h
RPM 1/min
Max. primary static pressure Pa
Sound power level supply air LWA 6 dB(A)
Sound power level extract air LWA 5 dB(A)
Sound power level outdoor air LWA 5 dB(A)
Sound power level exhaust air LWA 6 dB(A)
Sound power level casing LWA 2 dB(A)
Weight kg
Wiring diagrams No.
Heating coil warm water
Electrical heating coil
external electrical heating coil
13
A B C D E F
mm mm mm mm mm mm mm
C
F
B
A
D
E
ETA K 700 F OOJR 163295 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 700 F OOJL 163709 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 700 F EOJR 163292 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 700 F EOJL 163708 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 700 F WOJR 163217 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 700 F WOJL 163710 200 x 300 1000 1473 390 1099 1155 4 x Ø15
ETA K 1300 F OOJR 163793 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1300 F OOJL 163790 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1300 F EOJR 163787 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1300 F EOJL 163784 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1300 F WOJR 163799 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1300 F WOJL 163796 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F OOJR 163731 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F OOJL 163734 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F EOJR 163717 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F EOJL 163732 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F WOJR 163730 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 1700 F WOJL 163733 300 x 500 1460 1800 435 1560 1215 4 x Ø15
ETA K 2500 F OOJR 163756 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K 2500 F OOJL 163758 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K 2500 F EOJR 163755 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K 2500 F EOJL 163757 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K 2500 F WOJR 163743 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K 2500 F WOJL 163745 300 x 700 1900 2000 520 2000 1350 4 x Ø15
ETA K ... F
EN
8. DIMENSIONS
Product name Item number Duct connection
Fig. 8-1
Dimensions of the supply air unit
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14
163735
163735
H
L
B
LxBxH mm 122 x 89 x 23
Ø A mm 60
Ø D mm 27,9
Ø D
Ø A
| ETA K ... F
EN
Installation, operating and maintenance instructions
Size
Fig. 8-2
Outside dimensions of the control unit.
Fig. 8-3
Installation dimensions of the control unit.
8.1. Dimensions Control unit
Assembly size
Transport and storage should only be performed by specialist personnel in accordance with the assembly and opera-
ting manual and regulations in force.
e following points should be noted and followed:
Check the delivery according to the delivery note to ensure it is complete and correct and check for any damage.
Any missing quantities or damage incurred during transport should be confirmed by the carrier. No liability is accep-
ted if this is not observed.
For weight see technical data
It should be transported with suitable lifting equipment in the original packaging or on the transport equipment
indicated.
If transported with a forklift, it should be ensured that the product is resting with the basic profile or base frame
completely on the forks or on a pallet and the product‘s centre of gravity is between the forks.
e driver must be authorized to drive a forklift.
Do not go beneath the suspended load.
Never lift and transport the unit by the door handles, covers or other mounting parts!
Avoid damage or deformation of the housing.
e product must be stored in a dry area and protected from the weather in the original packaging. Open pallets
should be covered with tarpaulins. Even weatherproof modules should be covered because their weather resistan-
ce is only guaranteed after complete installation. If moisture has penetrated into the original packaging, remove it
immediately.
Storage temperature between +5 °C and +40 °C. Avoid severe temperature fluctuations.
If the product has been in storage for more than a year, check the smooth running of impellers and valves by hand.
9. TRANSPORT AND STORAGE
Fig. 9-1
Unit transported on a pallet with a forklift.
15
163736
163736
ETA K 700 F 4 150
ETA K 1300 F 4 250
ETA K 1700 F 4 260
ETA K 2500 F 4 355
EN
10. ASSEMBLY
Assembly work may only be performed by specialist personnel in accordance with the installation and operating ma-
nual and the regulations and standards in force.
e following points should be noted and followed:
Mount and align the unit with the aid of a water level. Only if the machine is horizontally installed can proper con-
densate drainage be guaranteed.
Only suitable installation aids, in accordance with regulations, should be used.
e device must be installed in such a way that it is easily accessible for maintenance and cleaning purposes.
e unit should only be installed with authorized and suitable fastening materials at all fastening points.
Do not distort the unit when installing.
e unit should be suitably secured.
Just use the indicated mounting and fixing places. No holes should be made in the housing or any screws screwed
into it.
e duct system must not be supported on the housing.
It is recommended that the duct system is attached with flexible connections or connection collars in order to
isolate any structure-borne noise. For floor or wall mounting, all units should be mounted to isolate structure-borne
noise.
Make sure that the intake duct has direct access to the intake air. Warning: branches in the intake duct, to other
fan units for example, may, if the dimensions are too small, lead to low pressure in the duct and therefore malfunc-
tion of the unit.
e pressure loss in the duct system must not exceed the capacity of the unit! e pressure loss in the duct should
not be more than 2/3 the unit‘s maximum pressure so that an adequate air output can still be achieved. is will
prevent malfunction. Pressure losses in the duct system are adversely affected by: the length of the duct system,
small duct cross-section, elbows, additional filters, valves, etc.
10.1. Unit suspension / Permitted installation positions
Install insulated against struc-
ture-borne sound
Product name Quantity
fasteners
Weight
Devices
kg
Only ceiling mounting possible.
Fig. 10-1
Unit suspension
Before suspending the unit, check that the ceiling is suitable for the load. Only fastening materials appropri-
ate to the load and suitable for the nature of the ceiling may be used.
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16
X
Y
Z
X X X Y Y Z
mm mm mm mm mm mm
| ETA K ... F
ETA K 700 F 170 450 320 200 300 200
ETA K 1300 F 170 600 380 200 300 200
ETA K 1700 F 170 600 380 200 300 200
ETA K 2500 F 170 650 460 200 300 200
EN
Installation, operating and maintenance instructions
10.2. Minimum distance for maintenance works
Product name
Remove door min.
Remove filter min.
electrical connection min.
electrical connection recommended
Connection cable min.
Open door min.
10.3. Duct connections
Duct connections should be made such way that no condensate can get into the unit via the ducts.
Insulate cold ducts in warm rooms
Insulate warm ducts in cold rooms
Ground heat exchangers should be equipped with a controlled condensate drain positioned before the unit
e air connections must be matched to the duct connections. (see under „Technical data“)
10.4. Operating limits
Operation limits of the device
Fresh air temperature -20 °C to +40 °C
Installation place: min. +5°C
Extract air class EN 13779 ETA 1 / ETA 2
Absolute humidity extract air max. 12g/kg
For the ventilation of rooms where the emission sources are human metabolism or building materials and structures,
e.g. offices, spaces for public service, meeting rooms as well as in rooms where smoking is allowed.
e suitability for enclosure condensation has to be checked by the customer, it is possible that suitable measures
like ventilation of the installation area, or an additional insulation of the outdoor air intake area, are going to be
necessary.
Ventilation unit not suitable for outdoor installation.
Fig. 10-2
Minimum distance for maintenance works
Fig. 10-3
Connection air duct
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10.5. Medium connections / Heating Coil
Before connecting heating coil, the duct system must be thoroughly cleaned.
Use only permitted sealants (DIN EN 751-2, DVGW tested).
When connecting the pipelines on the water side, the counterflow principle must be observed.
When making pipe connections to the unit with screw connections, a wrench, for example, must be used to hold
against the tightening torque.
e connection must be executed without tension.
Air bleeding must be done on site.
All pipes and fittings of the medium connections must be insulated.
Hydraulic circuits
For air conditioning applications, there are three basic circuits:
Bypass circuit
With the bypass circuit, only the hot water is fed to the heating coil. e rest of the water supplied
by the pump, bypasses the heating coil. is can lead to a temperature difference between top and
bottom of the heating coil if the flow of water through it is very small. e resulting temperature
gradients can lead to false temperature measurements in the duct or to draught effects in the room.
e bypass circuit is usually used in air coolers. In air coolers, the air is partly cooled below the dew
point and thereby dehumidified.
Admixture circuit
In the admixture circuit, the circulating pump always supplies the full amount of water required by
the heating coil with an amount of hot water determined by the valve setting. e temperature con-
trol is thus much better. Furthermore, the risk of frost damage when the pump is running is reduced
as the continuous circulation and increased pressure reduce the freezing point of the water.
e only advantage of the bypass circuit over the admixture circuit arises when the pipe lengths bet-
ween three-way ball valve and water heater are very long. Because the pump is ahead of the valve,
there is always hot water available at the valve that can be immediately fed to the heat exchanger
if required. It is possible that the water in the pipe to the valve cools during admixture circuit. When
heating is required there is a short delay before hot water gets into the heating coil.
Injection circuit
e combination of these circuits is the injection circuit which is generally recommended.
10.6. Condensate drainage
e counter cross-flow heat exchanger is equipped with a stainless steel condensate pan.
A drainage connection from the condensate pan is brought out of the unit.
To avoid corrosion, the drain pipe from this connection should be in stainless steel, copper or plastic.
A siphon for negative pressure must be installed at the condensate drain pipe.
e water seal height in the siphon depends on the pressure inside the unit, the minimum is 60 mm. If the pressu-
re in the device exceeds 400 Pa, please use the sealing water heights from the table.
Fig. 10-4
Fig. 10-5
Fig. 10-6
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Δ pst [Pa] H [mm]
300 60
400 60
500 66
600 76
700 86
800 97
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Installation, operating and maintenance instructions
10.7. Ball siphon installation
e water seal height can also be determined by calculation, provided the minimum of 60 mm is maintained:
Example calculation::
Δpst = Δpt - Δpd
Δpst = 500 Pa (see technical data)
1 mm water gauge equals 9,81 Pa
Water seal H:
H = Δpst / 9,81 Pa/mm + 15 mm
H = 500 Pa / 9,81 Pa/mm +15 mm
H = 66 mm
Fig. 10-7
Water seal height H
Table: Water seal height H in siphon as
a function off pressure.
For hygienic reasons, it is recommended to use the suitable siphon SYS 02 for the unit. is siphon provides suffi-
cient water seal height and is equipped with a self-closing ball siphon.
e water seal height for on site siphons can also be determined by calculation, provided the minimum water seal
height of 60 mm is maintained.
Rubber collar DN 30 / 50 / Rubber collar DN 40 / 50 1. a/b
Connection DN 40 / 40 2.
Union nut 1 1/2“ 3.
Combo gasket D = 40 (wedge-shaped) 4.
Elbow pipe D = 40 5.
Immersion pipe D = 40mm, L = 250mm 6.
Elbow pipe D = 40 7.
Gasket 1 1/2“ (flat) 8.
Back-pressure valve 9.
Round rubber gasket D = 48 10.
Screw cap 1 1/2“ 11.
Back-pressure ball 12.
Screw cap 2“ 13.
Fig. 10-9
Systemskizze
ball siphon SYS 02
Legend
Δpst = Static pressure [Pa]
Δpt = Total pressure [Pa]
Δpd = Dynamic pressure [Pa]
H = Water seal [mm]
Fig. 10-8
ball siphon
19
EN
e electrical installation may only be carried out by qualified electricians in compliance with the installation, operating
and maintenance instructions and the applicable national regulations, standards and guidelines:
ISO, DIN, EN and VDE specifications, including all safety requirements.
Technical connection conditions.
Safety at work and accident prevention requirements.
is list does not claim to be complete.
Requirements should be applied under one‘s own personal responsibility.
e electrical connections must be made as shown in the corresponding wiring diagrams and terminal diagrams.
e type of cable, size of cable and method of laying should be determined by an authorized electrician.
Low and extra-low voltage cables should be laid separately.
If no repair switch is integrated in the device, an all-pole mains disconnecting switch with min. 3 mm contact
opening must be provided in the supply line.
Use a separate cable inlet for each cable.
Any cable inlets that are not used must be sealed so that it is airtight.
All cable inlets must have strain relief.
Create equipotential bonding between the unit and the duct system.
Check all protective measures after the electrical connection work (earthing resistance, etc.)
Motor current and motor power must not exceed the values stated on the motor nameplate. e specified max.
fan speed must never be exceeded, otherwise the motor and fan will be destroyed by this overload and dissolved
or flying parts can destroy other components.
11. ELECTRICAL CONNECTION
Electricity warning (hazardous voltage)!
»Failure to observe the hazard may result in death, injury or damage to property.
→ Before performing any work on conductive parts, always disconnect the unit completely from the electri-
city supply and make sure that it cannot be switched back on again.
Negative pressure in
the unit Connection condensate drainage
Example:
Negative pressure at the condensate drain connection P=1500 Pa and distance A is 70 mm.
R = P/10 +A = 1500/10 + 70 = 220 mm
GR = R - A = 220 - 70 = 150 mm
Connection compartment / Connections on the unit
e connection compartment is inside the unit. Sie müssen zuerst die Abdeckung des Klemmkastens entfernen. Jede
anzuschließende Leitung muss durch eine separate Kabeleinführung geführt werden.
For this, use the supplied cable glands, fittings and cover plate. Cables that carry mains voltage must be fastened with
the tension relief devices available.
Fig. 10-10
Determination of the base frame height GR
(min. 140 mm)
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Installation, operating and maintenance instructions
Unit supply cable
Connect the mains supply cable as shown in the wiring diagram. For the dimensioning of the line, observe the unit‘s
rating plate and the relevant guidelines. Appropriate protection with correctly dimensioned automatic safety breakers
(circuit protection breaker) must be provided.
e device must be connected according to the wiring diagram. For fans which are controlled by external control de-
vices, the corresponding operating instructions of the manufacturer must be observed.
(1) Controller board
(2) Switchboard cover
(3) Cable glands
11.1. Overcurrent protection
e unit may only be operated with the correct overcurrent protection.
is must be established by a qualified electrician.
e recommended fuse can be found in the technical data.
11.2. Description external inputs and outputs
Fig. 11-1
Connection compartment
11.2.1. Inputs
Unit enabling
e unit can be switched on and off with an external potential-free contact (see wiring diagram). An external voltage
must never be applied to this connection. e control system would be destroyed. Any devices providing a potenti-
al-free contact (e.g. central building control system) can be used to control the unit. is contact must be securely
isolated from external voltages because otherwise dangerous conditions might occur in the event of a fault.
e extra-low voltage control cables must be laid separately from the mains cables.
Motion detector
See description „Party Input“.
External, potential-free contact.
Fire detector
An external, potential-free fire detection contact switches the device off. e control unit display shows „Fire protecti-
on fault“. is signals requires a manual reset.
Frost protection via supply air sensor
If the supply air temperature drops below 4°C, the unit goes into the preheating mode. e dampers are closed, the
fans are switched off, the circulation pump is switched on and the heating valve is opened. If the supply air tempera-
ture is still below 4°C after 20 minutes, the system switches off completely and the fault message F7 Frost protection
appears on the control panel. e circulation pump remains switched on and the heating valve opened. If the supply air
temperature rises again within 20 minutes, the device returns to normal operation.
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Ruck ETA K 2500 F EOJL Owner's manual

Category
Split-system air conditioners
Type
Owner's manual

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