Ruck ETA K 2500 F EOJL 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

[email protected]

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.

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

1

2

F7

F5

f

1

2

F7

F5

!

i

!

i

F7

F5

1.

°C

f

2

1

!

i

F7

F5

1.

°C

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

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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

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

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

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

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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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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+

EN

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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3

13

12

2

a,b 4

4

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910

87

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Δ pst [Pa] H [mm]

300 60

400 60

500 66

600 76

700 86

800 97

| ETA K ... F

EN

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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| ETA K ... F

EN

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

Ruck ETA K 2500 F EOJL Owner's manual

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