REMKO ATY 266 Installation and Operating Instructions

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REMKO ATY 266 Installation and Operating Instructions | Manualzz

Assembly and operating instructions

REMKO ATY

ATY 265, ATY 355, ATY 525

Inverter wall - room air conditioner in multisplit design

0127-2017-08 Edition 1, en_GB Read the instructions prior to performing any task!

Read these operating instructions carefully before commissioning / using this device!

These instructions are an integral part of the system and must always be kept near or on the device.

Subject to modifications; No liability accepted for errors or misprints!

Installation and operating instructions (translation of the original)

Table of contents

1 Safety and usage instructions .............................................................................................................

4

1.1 General safety notes....................................................................................................................... 4

1.2 Identification of notes...................................................................................................................... 4

1.3 Personnel qualifications.................................................................................................................. 4

1.4 Dangers of failure to observe the safety notes................................................................................ 4

1.5 Safety-conscious working............................................................................................................... 4

1.6 Safety notes for the operator........................................................................................................... 5

1.7 Safety notes for installation, maintenance and inspection.............................................................. 5

1.8 Unauthorised modification and changes......................................................................................... 5

1.9 Intended use................................................................................................................................... 5

1.10 Warranty........................................................................................................................................ 5

1.11 Transport and packaging............................................................................................................... 6

1.12 Environmental protection and recycling........................................................................................ 6

2 Technical data ........................................................................................................................................

7

2.1 Unit data.......................................................................................................................................... 7

2.2 Unit dimensions .............................................................................................................................. 8

3 Design and function ..............................................................................................................................

9

3.1 Unit description............................................................................................................................... 9

3.2 Combinations.................................................................................................................................. 9

4 Operation .............................................................................................................................................

10

4.1 General notes................................................................................................................................ 10

4.2 Display on indoor unit.................................................................................................................... 10

4.3 Keys on the remote control........................................................................................................... 11

5 Installation instructions for qualified personnel ..............................................................................

18

5.1 Important notes prior to installation............................................................................................... 18

5.2 Installation materials..................................................................................................................... 18

5.3 Selection of installation location.................................................................................................... 18

5.4 Minimum clearances..................................................................................................................... 19

5.5 Connection variants for the indoor unit......................................................................................... 19

5.6 Connection of the indoor unit when the refrigerant piping is installed under the plaster............... 20

5.7 Wall bracket ................................................................................................................................. 21

6 Installation ...........................................................................................................................................

22

7 Condensate drainage connection and safe drainage ......................................................................

23

8 Electrical wiring ...................................................................................................................................

24

8.1 General notes................................................................................................................................ 24

8.2 Electrical wiring diagram............................................................................................................... 25

8.3 Electrical drawings........................................................................................................................ 26

9 Commissioning ...................................................................................................................................

27

10 Troubleshooting and customer service ............................................................................................

28

10.1 Troubleshooting and customer service....................................................................................... 28

10.2 Indoor unit fault analysis............................................................................................................. 30

11 Care and maintenance ........................................................................................................................

43

12 Shutdown .............................................................................................................................................

45

13 Exploded view of the unit and spare parts list .................................................................................

46

14 Index .....................................................................................................................................................

48

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REMKO ATY

1 Safety and usage instructions

1.1 General safety notes

Carefully read the operating manual before commissioning the units for the first time. It contains useful tips and notes such as hazard warnings to prevent personal injury and material damage.

Failure to follow the directions in this manual not only presents a danger to people, the environment and the system itself, but will void any claims for liability.

Keep this operating manual and the refrigerant data sheet near to the units.

1.2 Identification of notes

This section provides an overview of all important safety aspects for proper protection of people and safe and fault-free operation.The instructions and safety notes contained within this manual must be observed in order to prevent accidents, personal injury and material damage.

Notes attached directly to the units must be observed in their entirety and be kept in a fully legible condition.

Safety notes in this manual are indicated by symbols. Safety notes are introduced with signal words which help to highlight the magnitude of the danger in question.

DANGER!

Contact with live parts poses an immediate danger of death due to electric shock. Damage to the insulation or individual components may pose a danger of death.

DANGER!

This combination of symbol and signal word warns of a situation in which there is immediate danger, which if not avoided may be fatal or cause serious injury.

WARNING!

This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may be fatal or cause serious injury.

CAUTION!

This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may cause injury or material and environmental damage.

NOTICE!

This combination of symbol and signal word warns of a potentially hazardous situation, which if not avoided may cause material and environmental damage.

This symbol highlights useful tips and recommendations as well as information for efficient and fault-free operation.

1.3 Personnel qualifications

Personnel responsible for commissioning, operation, maintenance, inspection and installation must be able to demonstrate that they hold a qualification which proves their ability to undertake the work.

1.4 Dangers of failure to observe the safety notes

Failure to observe the safety notes may pose a risk to people, the environment and the units. Failure to observe the safety notes may void any claims for damages.

In particular, failure to observe the safety notes may pose the following risks: n The failure of important unit functions.

n The failure of prescribed methods of maintenance and repair.

n Danger to people on account of electrical and mechanical effects.

1.5 Safety-conscious working

The safety notes contained in this manual, the existing national regulations concerning accident prevention as well as any internal company working, operating and safety regulations must be observed.

1.6 Safety notes for the operator

The operational safety of the units and components is only assured providing they are used as intended and in a fully assembled state.

n The units and components may only be set up, installed and maintained by qualified personnel.

n Protective covers (grille) over moving parts must not be removed from units that are in operation.

n Do not operate units or components with obvious defects or signs of damage.

n Contact with certain unit parts or components may lead to burns or injury.

n The units and components must not be exposed to any mechanical load, extreme levels of humidity or extreme temperature.

n Spaces in which refrigerant can leak sufficient to load and vent. Otherwise there is danger of suffocation.

n All housing parts and device openings, e.g. air inlets and outlets, must be free from foreign objects, fluids or gases.

n The units must be inspected by a service technician at least once annually. Visual inspections and cleaning may be performed by the operator when the units are disconnected from the mains.

1.7 Safety notes for installation, maintenance and inspection

n Appropriate hazard prevention measures must be taken to prevent risks to people when performing installation, repair, maintenance or cleaning work on the units.

n The setup, connection and operation of the units and its components must be undertaken in accordance with the usage and operating conditions stipulated in this manual and comply with all applicable regional regulations.

n Local regulations and laws such as Water

Ecology Act must be observed.

n The power supply should be adapted to the requirements of the units.

n Units may only be mounted at the points provided for this purpose at the factory. The units may only be secured or mounted on stable structures, walls or floors.

n Mobile units must be set up securely on suitable surfaces and in an upright position. Stationary units must be permanently installed for operation.

n The units and components should not be operated in areas where there is a heightened risk of damage. Observe the minimum clearances.

n The units and components must be kept at an adequate distance from flammable, explosive, combustible, abrasive and dirty areas or atmospheres.

n Safety devices must not be altered or bypassed.

1.8 Unauthorised modification and changes

Modifications or changes to units and components are not permitted and may cause malfunctions.

Safety devices may not be modified or bypassed.

Original replacement parts and accessories authorised by the manufactured ensure safety. The use of other parts may invalidate liability for resulting consequences.

1.9 Intended use

Depending on the model, the units and the additional fittings with which they are equipped are only intended to be used as an air-conditioner for the purpose of cooling or heating the air in an enclosed space.

Any different or additional use is a non-intended use. The manufacturer/supplier assumes no liability for damages arising from a non-intended use.

The user bears the sole risk in such cases.

Intended use also includes working in accordance with the operating and installation instructions and complying with the maintenance requirements.

The threshold values specified in the technical data must not be exceeded.

1.10 Warranty

For warranty claims to be considered, it is essential that the ordering party or its representative complete and return the "certificate of warranty" to

REMKO GmbH & Co. KG at the time when the units are purchased and commissioned.

The warranty conditions are detailed in the "General business and delivery conditions". Furthermore, only the parties to a contract can conclude special agreements beyond these conditions. In this case, contact your contractual partner in the first instance.

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1.11 Transport and packaging

The devices are supplied in a sturdy shipping container. Please check the equipment immediately upon delivery and note any damage or missing parts on the delivery and inform the shipper and your contractual partner. For later complaints can not be guaranteed.

WARNING!

Plastic films and bags etc. are dangerous toys for children!

Why:

- Leave packaging material are not around.

- Packaging material may not be accessible to children!

1.12 Environmental protection and recycling

Disposal of packaging

All products are packed for transport in environmentally friendly materials. Make a valuable contribution to reducing waste and sustaining raw materials. Only dispose of packaging at approved collection points.

Disposal of equipment and components

Only recyclable materials are used in the manufacture of the devices and components. Help protect the environment by ensuring that the devices or components (for example batteries) are not disposed in household waste, but only in accordance with local regulations and in an environmentally safe manner, e.g. using certified firms and recycling specialists or at collection points.

2 Technical data

2.1 Unit data

Series

Operating mode

Nominal cooling output

Nominal heat capacity 2)

1)

Application area (room volume), approx.

Adjustment range room temperature

Operating range

Refrigerant 4)

Max. operating pressure

Air flow volume per level

Sound pressure level per speed setting 3)

Sound power

Power supply

Enclosure class

Electrical rated power consumption, cooling 1)

Electrical rated power consumption, heating

2) kW kW m 3

°C

°C/r.H.

% kPa m³/h dB (A) dB (A)

V/Hz

IP

W

W

Electrical rated current consumption, cooling

1)

A

Electrical rated current consumption, heating

2)

Refrigerant connection

Liquid line

Refrigerant connection

Suction pipe

Condensate drainage connection

A

Inches

(mm)

Inches

(mm) mm

ATY 265 ATY 355 ATY 525

Design-Wall unit for inverter multisplit outdoor units for cooling and heating

2.64

3.52

5.28

2.93

3.81

5.57

80 110

+17 to +30

160

240/300/400

26/31/37

51

+17 to +32 / 35 to 65

24

R 410A

4200

270/350/500

27/30/37

49

230 / 1~ / 50

X 0

480/620/740

33/36/40

56

34

24 34

0.11

0.11

1/4 (6.35)

3/8 (9.52)

18

0.15

0.15

1/4 (6.35)

1/2 (12.70)

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REMKO ATY

Series

Dimensions

Height

Width

Depth

Weight

Serial number

EDP no.

mm mm mm kg

ATY 265

9.5

...

1623230

312

897

185

ATY 355

9.9

...

1623233

ATY 525

350

1004

205

13.0

...

1623236

1) Air inlet temperature TK 27°C / FK 19°C, outside temperature TK 35°C / FK 24°C, max. air volume, 5m pipe length in combination with MVT outdoor unit

2) Air inlet temperature TK 20°C, outside temperature TK 7°C / FK 6°C, max. air volume, 5m pipe length in combination with MVT outdoor unit

3) Distance 1m free field

2.2 Unit dimensions

B

A

C

D

Fig. 1: Dimensions ATY 265-525

Measurements (mm)

ATY 265 IT

ATY 355 IT

ATY 525 IT

A

897

897

1004

B

312

312

350

C

158

158

178

D

182

182

205

We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

3 Design and function

3.1 Unit description

The indoor unit on the split-design combined room air conditioners serves to extract heat from the indoor room being cooled. The outdoor unit then expels this heat to the outside.

If combined heating/cooling units are operated as heaters, the heat absorbed by the outdoor unit can be discharged by the indoor unit into the room being heated.

The unit is designed to be mounted high up on the wall, in an indoor area. It is operated by an infrared remote control.

The indoor unit consists of a fin evaporator, evaporator fan, controller and condensate tray. The indoor unit can be combined with REMKO outdoor units from the series MVT 602-1402 DC that provide sufficient cooling capacity. The outdoor unit is controlled by the regulation of the indoor unit.

Condensate pumps are available as accessories.

1 2

3

4

Fig. 3: Cooling cycle schematic

1: Evaporator

2: Evaporator fan

3: Suction pipe connection

4: Injection pipe connection

3.2 Combinations

The ATY 265-525 indoor units can be used together with the MVT 602-1402 DC series outdoor units.

1

3

B

A

2

7

8

9

5

6

3 4

Fig. 2: System layout

A: Outdoor area

B: Indoor area

1: Indoor unit

2: Outdoor unit

3: Condensate drainage line

4: Condenser fan

5: Power supply

6: Shut-off valve

7: Suction pipe

8: Control line

9: Injection pipe

Refrigerant piping is used to connect the indoor unit to the outdoor unit.

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REMKO ATY

4 Operation

4.1 General notes

The indoor unit is easily operated using the standard infrared remote control. The indoor unit beeps to acknowledge the correct transmission of data. If it is not possible to program the indoor unit with the remote control, then it can also be manually operated.

Manual mode

The indoor unit can also be switched on manually if the infrared remote control is lost/defective.

Manual operation is intended for emergency operation and is not suitable for basic unit operation.

Please replace the remote control. The key for manual activation is located below the housing cover on the right side.

The following settings apply for manual operation:

Pressing once: Automatic mode,

Pressing twice: Cooling mode,

Pressing three times: Unit OFF

Infrared remote control

The infrared remote control sends the programmed settings a distance of up to 6 m to the receiver of the indoor unit. Data will only be received correctly if the remote control is pointed at the receiver and no objects are obstructing the transmission path.

Two AAA batteries must be inserted into the remote control in preparation. To do so, remove the flap from the battery compartment and insert the batteries the correct way around (see markings). Removing the batteries causes all stored data to be lost. The remote control will then access the default settings, which you are free to customise at any time.

Alarms are indicated by a code (see chapter

Troubleshooting and customer service).

NOTICE!

Immediately replace flat batteries with a new set, otherwise there is a risk of leakage. It is recommended that the batteries are removed if the equipment is shut down for longer periods.

Help save on energy consumption in stand-by mode! If the device, system or component is not in use, we recommend disconnecting the power supply. Components with a safety function is excluded from our recommendation!

4.2 Display on indoor unit

Display

1 max. 6 m

Fig. 4: Maximum distance

Fig. 5: Display

1: Display of coded error messages, room and target temperature

10

4.3 Keys on the remote control

1

2

3

4

5

8

6 7 14

Fig. 6: Keys on the remote control

9

10

11

12

13

1 "ON/OFF" key

Press this key to switch the air conditioning unit on and off.

2 Operating mode selection

This key is used to set the desired operating mode.

The automatic, cooling, dehumidification, heating and recirculation modes are available.

The automatic mode is only available to a limited degree with multi-split applications (see note

Ä on page 14

)

3 Fan speed

Use this key to select the desired fan speed. The automatic, low, medium and high functions are available. Note: In the dehumidification mode, the fan speed cannot be set manually.

4 "SLEEP" key

Activates/deactivates the "SLEEP" function.

Pressing this key will automatically increase or decrease the target temperature by 1 °C within an hour in cooling mode and heating mode respectively. Press this key to maintain the most convenient temperature and save energy. This function is only available in "Cooling", "Heating" and "Auto" modes. If the unit is working in "SLEEP" mode, this activity is interrupted by pressing the "MODE",

"FAN", "Speed" or "ON/OFF" keys.

5 "FRESH" key

Press this key to activate/deactivate the ion generator (air freshener).

6 "TURBO" key

Activation of the turbo function makes it possible to reach the setpoint in cooling or heating mode as fast as possible.

7 "SELF CLEAN" key (not available)

This activates the self-clean function on the unit.

8 “ARROW UP” and “ARROW DOWN” keys

“ARROW UP” key

Press the key in order to increase the setpoint in

1 °C steps to a maximum 30°C.

“ARROW DOWN” key

Press the key in order to reduce the setpoint in 1°C steps to a minimum 17°C.

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REMKO ATY

9 “SILENCE/FP” key

Activates/deactivates the silent mode. Pressing the key for longer than 2 seconds activates the unit's frost protection function.

In silent unit mode, the compressor runs at a lower frequency, and the indoor unit fan rotates at a slower speed. This obtains particularly silent unit operation.

The frost protection function can only be activated in heating mode. The unit operates with a fixed setpoint of 8°C. The indoor unit displays "FP".

Pressing the ON/OFF, SLEEP, FP, Mode, FAN or up or down arrow key, the frost protection function is deactivated.

Bitte beachten

Beide Funktionen sind beim Anschluss an die

Geräteserie MVT nicht verfügbar!

13 "FOLLOW ME" key

This key can be used to activate/deactivate the

FOLLOW ME function. In this mode, the room temperature is measured on the remote control. This sends a signal to the indoor unit every 3 minutes. If the remote control does not send a signal to the indoor unit for 7 minutes, this mode is automatically deactivated.

14 "LED" key

This activates the display on the indoor unit.

This is only possible if the display has been automatically switched off by the integrated light indicator.

10 "TIMER ON" key

Press this key to activate the unit start delay time.

Each press of this key increases the delay time by

30 minutes. When the set time on the display exceeds 10.0, each press of the button increases the set time by 60 minutes. To deactivate the delay time, set the time to 0.0.

11 "TIMER OFF" key

This key can be used to program the delayed switch-off time. Each press of this key increases the switch-off time by 30 minutes. When the set time on the display exceeds 10.0, each press of the button increases the set time by 60 minutes. To deactivate the switch-off time, set the time to 0.0.

12 3-D swing mode

Press this key to start or stop the swing mode.

With the 2-point key, you can adjust the horizontal fin on the left side and the vertical fin on the right side. Press this key once to change the angle by 6 degrees. Pressing the key for 2 seconds stops the swing function. When the swing function is stopped, LC appears on the display for three seconds.

12

Indicators on the LCD

2 3 4 5 6

1 9

10

11

7

8

13 12

Fig. 7: Indicators on the LCD

1: Mode indicator - shows the current operating modes, including Auto ( ), Cooling ( ),

Dehumidification ( ), Heating ( ), Fan ( ) and back to Auto ( ) mode.

2: Signal transmission symbol. This symbol appears when signals are being transmitted from the remote control to the indoor unit.

3: ON/OFF symbol. This symbol appears when the "ON/OFF" key is pressed. Pressing this key again causes the indicator to go out.

4: TIMER ON symbol. This symbol appears when TIMER ON is switched on.

5: ECO function (not available)

6: TIMER OFF symbol. This symbol appears when TIMER OFF is switched on.

7: Battery charge status (weak)

8: Sleep symbol. This symbol appears when the

"Sleep" function is activated. Pressing this key again causes the indicator to go out.

9: Temperature/Timer symbol. Shows the temperature setting (-17°C~30°C). If "FAN" mode is selected, the temperature setting is not displayed. In Timer mode, the ON and OFF settings appear for the TIMER.

10: FOLLOW ME symbol. This symbol appears when the "Follow me" function is activated.

11: Display of ion generator active (optional)

12: Fan speed symbol. This is where the selected fan speeds are displayed: AUTO (no indicator) and the three fan speed settings: (slow),

(medium) and

(fast). The fan speed is set to "Automatic" when either "Auto" or "Dehumidification" mode is activated.

13: Silent mode active (optional)

The illustration of the LCD with all of the symbols present is only intended to provide a clearer overview. During operation, only those symbols relevant to the respective functions appear on the display.

Key functions

A symbol is shown on the display to indicate that the settings are being transferred.

“Auto” mode (please observe notes!)

Make sure that the indoor unit is connected to the power supply, and is switched on.

The operating mode indicator on the display of the indoor unit begins to flash.

1.

Press the "MODE" key to select "Auto" mode.

2.

Press the "Arrow up/down" key to set the desired temperature. The temperature can be set between 17 and 30°C, in increments of 1°C.

3.

Press the "ON/OFF" key to switch on the air conditioning unit.

3

1

Fig. 8: "Auto" mode

2

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REMKO ATY

Wichtiger Hinweis

Im "Automatik"-Modus wählt das Klimagerät automatisch zwischen dem Kühl-, Umluft- und

Heizbetrieb.

Bei Multi-Split Systemen, welche entweder

Kühlen- oder Heizen können, kommt es daher bei Verwendung des "Automatik"-Modus zu einem Modikonflikt (Fehler P5). Um diesen

Fehler zu vermeiden, verwenden Sie daher bei allen Innengeräten die Betriebsart "Kühlen" oder "Heizen".

"Dehumidification" mode

Make sure that the indoor unit is connected to the power supply, and is switched on.

The operating mode indicator on the display of the indoor unit begins to flash.

1.

Press the "MODE" key to select "Dehumidification" mode.

2.

The temperature setting on the remote control has no effect on unit operation.

3.

Press the "ON/OFF" key to switch on the air conditioning unit.

"Cooling", "Heating" and "Recirculation" mode

Make sure that the indoor unit is connected to the power supply, and is switched on.

1.

Press the "MODE" key to select from operating modes "Cooling", "Heating" or "Recirculation".

2.

Press the "Arrow up/down" key to set the desired temperature. The temperature can be set between 17 and 30°C, in increments of 1°C.

3.

Press the "FAN" key to select from the four fan speeds (Auto, slow, medium and fast).

4.

Press the "ON/OFF" key to switch on the air conditioning unit.

3

1

2

Fig. 10: "Dehumidification" mode

4

1

3

2

In the “Dehumidification” mode, manual selection of the fan speed is not possible! Please note that temperature pre-selection is not possible and the dehumidified room can cool dramatically!

Fig. 9: "Cooling", "Heating" and "Recirculation" mode

14

"Timer" mode

Press the "TIMER ON" key to set the "switch-on time" and the "TIMER OFF" key to set the "switchoff" time for the unit.

Setting the “switch-on time”

1.

Press the "TIMER ON" key. The remote control shows "TIMER ON", the last "switch-on time" setting and the symbol "H" appear on the display. The unit is now ready to reset the

"switch-on time" and to start "TIMER ON" mode.

2.

Press the "TIMER ON" key again to set the desired "switch-on time". Each time the key is pressed, the time is increased by half an hour between 0 and 10 hours, and by an hour between 10 and 24 hours.

3.

Once these settings have been made, there is a one second delay before the remote control transmits the signal to the indoor unit.

Then, after approx. two seconds, the "H" symbol disappears from the LCD display, and the set temperature appears again on the display.

Setting the “switch-off time”

1.

Press the "TIMER OFF" key. The remote control shows "TIMER OFF", the last "switchoff time" setting and the symbol "H" appear on the display. The unit is now ready to reset the "switch-off time" and to stop "TIMER

OFF" mode.

2.

Press the "TIMER OFF" key again to set the desired "switch-off time". Each time the key is pressed, the time is increased by half an hour between 0 and 10 hours, and by an hour between 10 and 24 hours.

3.

Once these settings have been made, there is a one second delay before the remote control transmits the signal to the indoor unit.

Then, after approx. two seconds, the "H" symbol disappears from the LCD display, and the set temperature appears again on the display.

1

2

– When Timer mode is selected, the remote control automatically transfers the timer signal to the indoor unit for the specified period of time. Therefore, you should hold the remote control in a location where it can transfer the signal to the indoor unit without interference.

– The effective operation for the time settings by the remote control for the timer function is restricted to the following settings:

0.5, 1.0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 4.5, 5.0,

5.5, 6.0, 6.5, 7.0, 7.5, 8.0, 8.5, 9.0, 9.5, 10,

11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21,

22, 23 and 24.

Fig. 11: "Timer" mode

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REMKO ATY

Example TIMER function settings

"TIMER ON" (Auto on mode)

Example:

You want the air conditioning unit to switch on 2 hours from the time it was programmed.

1.

Press the "TIMER ON" key. The last operating time setting for the timer, and the "H" symbols, appear on the display.

2.

Press the "TIMER ON" key until the desired start time is shown in the "TIMER ON" area on the remote control.

3.

Wait for 3 seconds and the temperature appears again in this area of the digital display. The "TIMER ON" indicator stays lit, and this function is activated.

Combined TIMER (setting "TIMER ON" and

"TIMER OFF" at the same time)

"TIMER OFF ð "TIMER ON"

(On ð Stop ð Start)

Example:

You want the air conditioning unit to switch off in two hours from the time it was programmed, and switch back on ten hours later.

1.

Press the "TIMER OFF" key.

2.

Press the "TIMER OFF" key again until the desired stop time is shown in the "TIMER

OFF" area on the remote control.

3.

Press the "TIMER ON" key.

4.

Press the "TIMER ON" key again until "10H" is shown in the "TIMER ON" area on the remote control.

5.

Wait for 3 seconds and the temperature appears again in this area of the digital display. The "TIMER ON" and "TIMER OFF" indicators stay lit, and this function is activated.

Start

Off

Set time

Fig. 12: "TIMER ON" example

2 hours later

"TIMER OFF" (Auto off mode)

Example:

You want the air conditioning unit to switch off 4 hours from the time it was programmed.

1.

Press the "TIMER OFF" key. The last operating time setting for the timer, and the "H" symbols, appear on the display.

2.

Press the "TIMER OFF" key until "10H" is shown in the "TIMER OFF" area on the remote control.

3.

Wait for 3 seconds and the temperature appears again in this area of the digital display. The "TIMER OFF" indicator stays lit, and this function is activated.

Start

On

Stop

Set time 2 hours later after setting

10 hours later after setting

Fig. 14: "TIMER OFF" / "TIMER ON" example

On

Set time

Fig. 13: "TIMER OFF" example

Stop

4 hours later

16

"TIMER ON ð "TIMER OFF"

(Off ð Start ð Stop)

Example:

You want the air conditioning unit to switch on in two hours from the time it was programmed, and switch back off five hours later.

1.

Press the "TIMER ON" key.

2.

Press the "TIMER ON" key again until "2.0H" is shown in the "TIMER ON" area on the remote control.

3.

Press the "TIMER OFF" key.

4.

Press the "TIMER OFF" key again until

"5.0H" is shown in the "TIMER OFF" area on the remote control.

5.

Wait for 3 seconds and the temperature appears again in this area of the digital display. The "TIMER ON" and "TIMER OFF" indicators stay lit, and this function is activated.

SLEEP function

The sleep function saves energy while you sleep.

This function is activated by pressing the key on the remote control. Press the key before going to sleep. In cooling mode, the unit automatically increases the set room temperature by 1 °C after 1 hour. After one more hour, the room temperature is increased by an additional 1 °C. In heating mode, the room temperature is decreased within the first two hours of operation by 2°C. After 7 hours of unit operation, the unit switches off automatically in cooling and heating mode.

This function is not available in the modes recirculation and dehumidification!

Off

Set time 2 hours later after setting

Start

Stop

5 hours later after setting

Fig. 15: "TIMER ON" / "TIMER OFF" example

1

Fig. 16: "Sleep" function

Setpoint

1 hr 1 hr

After 7 hours unit OFF

Fig. 17: Sleep mode

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REMKO ATY

5 Installation instructions for qualified personnel

5.1 Important notes prior to installation

5.2 Installation materials

Observe the operating manuals for the indoor unit and the outdoor unit when installing the entire system.

The indoor unit is attached to the wall by a wall bracket and 4 screws (to be provided by the customer).

5.3 Selection of installation location

n Transport the unit in its original packaging as close as possible to the installation location.

You avoid transport damage by doing so.

n Check the contents of the packaging for completeness and check the unit for visible transport damage. Report any damage immediately to your contractual partner and the shipping company.

n Lift the unit on the corners and not on the refrigerant or condensate drainage connections.

n The refrigerant piping (injection and suction pipe), valves and connections must be insulated against vapour density. If necessary also insulate the condensate drainage line.

n Select an installation location which allows air to freely flow through the air inlet and outlet

(see section "Minimum clearances").

n Do not install the unit in the immediate vicinity of devices which generate intensive thermal radiation. Installation in the vicinity of thermal radiation reduces the unit output.

n Install the refrigerant piping from the indoor unit to the outdoor unit.

n Seal off open refrigerant piping with suitable caps or adhesive strips to prevent the infiltration of moisture and never kink or compress the refrigerant piping.

n Only use the union nuts supplied with the refrigerant piping. These should only be removed shortly before connecting the refrigerant piping.

n Carry out all electrical wiring in accordance with applicable DIN and VDE standards.

n Ensure the electrical cables are properly connected to the terminals. Otherwise there is a risk of fire.

The indoor unit is designed for horizontal wall installation above doors. However, it can also be used in the upper wall area (min. 1.75 m above the floor).

18

5.4 Minimum clearances

Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution.

150

1

120 120

1600

2

Fig. 18: Minimum clearances

1: Air inlet

2: Air outlet

5.5 Connection variants for the indoor unit

The following connection variants can be used for the refrigerant, condensate and control lines.

D

C

A

B

Fig. 19: Connection variant (view from the rear)

A: Infeed of the refrigerant piping at the wall, left

B: Infeed of the refrigerant piping through the wall, left

C: Outlet through the wall, right

D: Outlet at the wall, right (the refrigerant piping must be bent through 180 degrees for this)

B

D

A

C

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REMKO ATY

5.6 Connection of the indoor unit when the refrigerant piping is installed under the plaster

If the customer routes the refrigerant piping to the unit underneath the plaster, observe the following note.

The principal connection options can be found in the "Connection variants for the indoor unit" and "Wall bracket" chapters.

If the refrigerant piping is routed underneath the plaster, ensure that the customer-fitted refrigerant piping does not protrude from the wall at a 90° angle. As a result of the required bending radius, the unit would then be very difficult to connect or would possibly be impossible to fasten to the wall mount.

For this reason, route the customer-fitted refrigerant piping with as flat an angle as possible (<30°) out of the

wall, from the left and into the unit. This enables direct connection of the refrigerant piping (see Fig. 20).

NOTICE!

The flare connection should be implemented in the unit in the case of under-plaster installations. A detachable connection below the level of the plaster is not generally permitted!

Fig. 20: Under the plaster installation (View from above)

20

5.7 Wall bracket

C

A B

D

E

F

G

Fig. 21: Wall bracket for indoor units ATY 265-525 IT (rear view)

H

Dimensions (mm)

ATY 265-355 IT

ATY 525 IT

A

450

523

B

445

479

C

50

53

D

50

40

E

75

80

F

263

287

G

639

762

We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

H

254

244

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REMKO ATY

6 Installation

Unit installation

NOTICE!

Installation should only be performed by authorised specialists.

The unit is attached by means of a wall bracket, considering the air discharge side located in the lower part.

1.

Mark the mounting points on the structurally permissible building sections according to the dimensions of the wall bracket.

2.

If necessary, remove the break out opening of the housing.

3.

Connect the refrigerant piping, electrical cables and condensate drainage line to the indoor unit as described below.

4.

Hang the indoor unit onto the wall bracket by tilting it back slightly and by pressing the bottom part of the unit against the bracket.

5.

Check again that the unit is level. (Fig. 22)

Connection of refrigerant piping

The refrigerant piping is connected (responsibility of the customer) on the back side of the unit.

It may be necessary to fit a reducer or flared adapter to the indoor unit. These fittings are included with the indoor unit as an accessory kit.

Once installed, the connections should be insulated to make them vapour diffusion proof.

NOTICE!

The unit is factory filled with dry nitrogen for leak testing purposes. The pressurised nitrogen is released when the union nuts are undone.

Fig. 22: Horizontal positioning

The wall bracket for the units must be attached with suitable screws and anchors.

22

7 Condensate drainage connection and safe drainage

Condensate drainage connection

If the temperature falls below the dew point on the evaporator, condensation will form on the indoor unit during cooling.

Below the evaporator is a collection tray, which must be connected to a drain.

n The condensate drainage line provided by the customer should have an incline of at least 2%

(Fig. 23). If necessary, fit vapour-diffusion-proof

insulation.

n Route the unit's condensate drainage line freely into the drain line. If the condensate runs directly into a sewer pipe, fit a trap to prevent any unpleasant odours.

n When operating the unit at outside temperatures below 0 °C, ensure the condensate drainage line is laid to protect it against frost. If necessary, fit a pipe heater.

n Following installation, check that the condensate run off is unobstructed and ensure that the line is durably leak tight.

NOTICE!

Local regulations or environmental laws, for example the German Water Resource Law

(WHG), can require suitable precautions to protect against uncontrolled draining in case of leakage to provide for safe disposal of escaping refrigerator oil or hazardous media.

NOTICE!

If condensate is removed via a duct in accordance with DIN EN 1717, ensure that any microbiological contamination present on the wastewater side (bacteria, fungi, viruses) cannot enter the unit connected to it.

min. 2%

Fig. 23: Condensate drainage connection

The condensate hose is designed to be connected on the left-hand side (as viewed from the front).

Safe drainage in the event of leakages

Local regulations or environmental laws, for example the German Water Resource Act (WHG), can require suitable precautions to protect against uncontrolled drainage in case of leakage to provide for safe disposal of escaping air conditioning fluid or hazardous media.

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REMKO ATY

8 Electrical wiring

8.1 General notes

A protected power supply cable is to be connected to the outdoor unit and 4-core control line is to be connected to the indoor unit respectively.

DANGER!

All electrical installation work is to be performed by specialist companies. Disconnect the power supply when connecting the electrical terminals.

NOTICE!

The electrical connection for the units must be made at a separate feedpoint with a residual current device in accordance with local regulations and should be laid out by an electrician.

n We recommend installing a main / repair switch on the building close to the unit. This is the responsibility of the customer.

n The terminal blocks for making the connections are located at the rear of the unit. When the unit is installed, measurements can be made from the front by removing the cover.

n If an optional condensate pump is used as an accessory in conjunction with the unit, it may be necessary to install an additional relay with a higher contact rating after the switch-off contact on the pump to switch off the compressor.

The units' scope of delivery includes a five metre long, four-core control line for connecting the indoor unit to the outdoor unit. The control line to the outdoor unit contains a data cable which is used to establish communication between the indoor unit and the outdoor unit. This is used for controlling the cooling and heating capacity and for forwarding malfunction codes to the indoor unit. If the length is insufficient, you can extend the control lines on the indoor unit.

Make the connection as follows:

1.

Open the air inlet grill.

2.

Remove the covers on the right-hand side

(Fig. 24).

3.

Disconnect the control line from the terminal block and remove the control line.

4.

Connect the customer-laid control line to the

terminals (Fig. 24).

5.

Join the customer-laid control line to the supplied control line in a professional manner.

6.

Insert the control line plug into the corresponding socket on the outdoor unit.

7.

Re-assemble the unit.

1

2

3

4

Fig. 24: Connecting the indoor unit

1: Cover

2: Strain relief

3: Terminal block for control line

4: Control line from outdoor unit

1

24

8.2 Electrical wiring diagram

Connection MVT 602-1402 DC

A

L N L(A) N(A) S(A) L(B) N(B) S(B)

1

230V/1~/50 Hz

L(C) N(C) S(C)

2

B

1

L(1) 1 2(N) S

W

B

2

L(1) 1 2(N) S

W

B

3

L(1) 1 2(N) S

W

2

Fig. 25: Electrical wiring diagram

A:

B

1

-B

1:

2:

3

Outdoor unit MVT 602-1402 DC

: Indoor units ATY 265-525

Power supply

Communication lines

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REMKO ATY

8.3 Electrical drawings

ATY 265-525

Weiß/

White Rot/

Red

Blau/

Blue

N-IN

Cn31

Yellow/

Gelb

W 1(L) 2(N) S

C

1

A

B

2

3

4

Cn15 CN 27

Fig. 26: Electrical drawings

A: Control board

B: Display circuit board

C: Control line from outdoor unit

1: DC fan motor

2: Engine trim + LED board

5 6

3: Fin motor, vertical

4: Fin motor, horizontal

5: Temperature probe, evaporator T2

6: Ion generator

26

9 Commissioning

NOTICE!

Commissioning should only be performed by specially trained personnel and documented after the certificate has been issued. Observe the operating manuals for the indoor unit and outdoor unit when commissioning the entire system.

NOTICE!

Observe the operating manuals for the indoor unit and outdoor unit when commissioning the entire system.

Function test of cooling operating mode

1.

Switch the power supply on.

2.

Use the remote control to switch on the unit and select the cooling mode, maximum fan speed and lowest target temperature.

3.

Measure and record all the required values in the commissioning report and check the safety functions.

4.

Check the unit control system using the following functions described in the "Operation" chapter: "Timer", "Temperature setting", "Fan speeds" and switching to recirculation or dehumidification mode.

5.

Check the correct function of the condensate drainage line by pouring distilled water into the condensate tray. A bottle with a spout is recommended for pouring the water into the condensate tray.

Function test of heating operating mode

1.

Switch the power supply on.

2.

Use the remote control to switch on the unit and select the heating mode, maximum fan speed and highest target temperature.

3.

Measure and record all the required values in the commissioning report and check the safety functions.

4.

Check the unit control system using the functions described in the "Operation" chapter

(timer, temperature setting, fan speeds).

Final tasks n Re-install all disassembled parts.

n Familiarise the operator with the system.

NOTICE!

Check that the shut-off valves and valve caps are tight after carrying out any work on the cooling cycle. Use appropriate sealant products as necessary.

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REMKO ATY

10 Troubleshooting and customer service

10.1 Troubleshooting and customer service

The unit and components are manufactured using state-of-the-art production methods and tested several times to verify their correct function. However, if alarms should occur, please check the functions as detailed in the list below. For systems with an indoor unit and outdoor unit, refer to the chapter "Troubleshooting and customer service" in both operating manuals. Please inform your dealer if the unit is still not working correctly after all function checks have been performed!

Operational malfunctions

Malfunction

The unit does not start or switches itself off

Possible causes

Power failure, undervoltage, defective mains fuse / main switch in

OFF position

Temperature outside operating range

Electrical surges caused by thunderstorms

Checks

Does all other electrical equipment function correctly?

Damaged power supply Does all other elec.

equipment function correctly?

Wait time after switching on is too short

Have approx. 5 minutes elapsed since the restart?

Are the fans in the indoor unit and outdoor unit working correctly?

Have there been lightning strikes in the area recently?

Remedial measures

Check the voltage and if necessary, wait for it to come back on

Repair by specialist firm

Schedule longer wait times

Observe temperature ranges of indoor unit and outdoor unit

Switch off the mains breaker and switch it back on. Have it inspected by a specialist

Check and if necessary clean the pump

The unit does not respond to the remote control

The unit works at reduced or no cooling capacity

Malfunction of the external condensate pump

Transmission distance too far / receiver affected by interference

Has the pump shut down due to a malfunction?

Does the indoor unit beep when pressing a key?

Defective remote control Is the unit running in manual mode?

Receiver or transmitter unit exposed to excessive solar radiation

Does it function correctly in the shade?

Electromagnetic fields are interfering with transmission

Key in remote control jammed / two buttons pressed at same time

Batteries in remote control are flat

Filter is dirty / air inlet / outlet opening is blocked by debris

Does it function after removing potential sources of interference?

Does the “Transmitting” symbol appear on the display?

Have new batteries been inserted? Is the display incomplete?

Have the filters been cleaned?

Reduce the distance to less than 6 m or change position

Replace the remote control

Place the receiver and/or transmitter unit in the shade

Signal is not transmitted when interference sources are operational

Release the key / only press one key

Insert new batteries

Clean the filters

28

Malfunction

Condensate discharge on unit

Possible causes

Windows and doors open. Heating / cooling load has increased

Checks

Have structural / usage modifications been made?

Cooling mode is not set Does the cooling symbol appear on the display?

Fins on outdoor unit blocked by foreign objects

Leaking cooling cycle

Does the fan of the outdoor unit work? Are the exchanger fins unobstructed?

Are there signs of frost on the exchanger fins of the indoor unit?

Drainage pipe on collection container clogged / damaged

Faulty external condensate pump or float

Condensate has not drained away and has collected in the condensate drainage line

Condensate does not drain off

Can the condensate drain off without any obstruction?

Is the collection tray full of water and the pump not running?

Is there an incline on the condensate drainage line? Check there is no blockage in the pipe.

Are the condensate drainage lines unblocked and is there a steady incline? Are the condensate pump and liquid level switch functioning correctly?

Remedial measures

Close windows and doors / install additional units

Correct the settings for the unit

Check the fan or winter fan speed control, reduce the air resistance

Repair by specialist

Clean the drainage pipe and collection container

Call out a specialist to replace the pump

Route the condensate drainage line with an incline and clean.

Route the condensate drainage line with an incline and clean it. If the liquid level switch or the condensate pump is defective, have them replaced

NOTE

If the outdoor unit makes noises at low outside temperatures, even although it is switched off, this is not a malfunction. This is the winding of the compressor being run briefly in order to heat up the oil within it and also to guarantee the viscosity at low ambient temperatures. If you do not use the unit in the winter then you can switch off the breaker. Switch it back on again at least 12 hours before the next time that the unit will be required!

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REMKO ATY

Fault display on the indoor unit

P0

P1

P2

P4

F2

F3

F4

F5

EC dF

E4

E5

F0

F1

Display

E0

E1

E3

Error description

EEPROM error, indoor unit

Communication error between indoor unit and outdoor unit

Fan speed control indoor unit disabled

Room temperature probe T1 defective

Temperature probe, evaporator T2 defective

Overflow protection

Temperature probe air inlet outdoor unit T4 defective

Temperature probe, evaporator outlet T3 defective

Temperature probe, heat gas line T5 defective

EEPROM error, outdoor unit

Condenser fan speed control probe not working

Compressor actuation error

Over-voltage or under-voltage error

Compressor overheating protection (heat gas temperature too high)

Inverter control disabled

No cooling capacity after 30 minutes

Defrosting

For fault elimination refer to troubleshooting on the following pages.

10.2 Indoor unit fault analysis

Error code: E0 / F4

Reason: The control board of the outdoor unit or indoor unit cannot read the unit memory

(EEPROM)

Cause: n Installation error n Control boards of outdoor unit or indoor unit defective

Switch off voltage, switch on again 2 minutes later. Is the error still present?

YES

Replace the circuit boards of the outdoor unit and indoor unit in turn, in order to locate the defective EEPROM

30

Error code: E1

Reason: The indoor unit does not receive a signal from the outdoor unit within 110 seconds

Cause: n Electrical connection not configured correctly n Control boards outdoor unit or indoor unit defective

Switch off voltage, switch on again 2 minutes later. Is the error still present?

YES

Measure the voltage between the “S” and “N” terminals of the outdoor unit. Is the measured value positive?

YES

Check electrical connections in the outdoor unit. Are they OK?

YES

Is the transformer OK?

NO Check electrical connections in the indoor unit.

NO

Are they OK?

YES

Replace the control boards of the indoor unit. Is the fault remedied?

NO

Replace the control boards of the outdoor unit

Replace the transformer

YES

Replace the control boards of the outdoor unit.

Is the fault remedied?

NO

Replace the control boards of the indoor unit

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REMKO ATY

Error code: E3 / F5

Reason: If the fan speed of the indoor unit/outdoor unit falls below 300 rpm, the unit switches off and the display shows error code E3 or E5

Cause: n Electrical connection faulty n Evaporator fan wheel defective n Evaporator fan motor defective n Control board faulty

Switch off voltage, switch on again 2 minutes later. Is the error still present?

YES

De-energise the unit and attempt to turn the fan wheel by hand. Does it rotate freely?

YES

Check the electrical connections.

Are these correctly implemented?

YES

Measure the voltage at the corresponding connector plug on the con-

trol board (see section Ä ‘Procedure’ on page 33 ). Does the

measured voltage lie within the tolerance range?

YES

Replace the fan motor. Is the fault remedied?

NO

NO

NO

NO

NO

The unit operates normally.

Check the motor and the fan wheel bearing, and replace the defective parts.

Correctly establish the electrical connection

Replace the control board.

32

Procedure

DC fan motor of the indoor unit (control chip is installed in the motor):

Switch on the voltage to the unit. In standby mode, measure the unit between terminals 1-3 and 4-3 of the connector plug. Check the measured values against those listed in the table below. If these differ, there is a problem with the control board and it must be replaced.

1 3 4 5 6

Fig. 27: Motor measurements

4

5

6

2

3

Terminal

1

Colour

Red

---

Black

White

Yellow

Blue

Voltage

280V~380V

---

0V

17-17.5V

0~5.6V

17-17.5V

DC fan motor of the outdoor unit (control chip is installed in the motor):

Measure the resistance between terminals 1-3 and 4-3. This should be roughly identical. If the resistance deviates significantly, assume that the motor is defective and must be replaced.

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REMKO ATY

Error code: EC

Reason: The evaporator probe T2 measures the actual value with the compressor start and takes this as the reference value T

Start

. If, 5 minutes after the compressor start, the value T

Start has not dropped by 2 °C for at least 4 seconds then the system assumes that the refrigerant is low. The measurement is performed a total of 3 times before the display shows the error code "EC".

Cause: n Refrigerant low or cooling circuit blocked n Evaporator probe T2 defective n Indoor unit control board defective

Switch off voltage, switch on again 2 minutes later. Is the error still present?

YES

Check whether the indoor unit blows out cold air.

NO

Check the cooling circuit for leaks. Leaks found?

NO

Check the cooling circuit for any blockages. Are the shut-off valves on the outdoor unit open?

YES

Check the position and function of the evaporator probe T2. Is it correctly seated and with the correct resistance?

YES

Exchange the control boards of the indoor unit.

YES Remedy leaks and put the unit back into operation.

34

Error code: E4 / E5 / F1 / F2 / F3

Reason: If the test voltage of the probes is lower than 0.06 V or higher than 4.94 V then the display shows the error code of the corresponding probe.

Cause: n Electrical connection faulty n Temperature probe defective

Check the connecting cable between the control board and the temperature probe. Is it OK and correctly connected?

YES

Check the probe for correct resistance, depending on the temperature (see resistance table)

YES

Replace the corresponding control board.

NO

NO

Establish a proper connection.

Replace the probe.

Fig. 28: Check the probes

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REMKO ATY

Error code: F0

Reason: Safety shutdown due to overly high current consumption of individual unit components

Cause: n Faulty power supply n Cooling circuit blocked n Faulty control board n Electrical connections faulty n Compressor defective

Switch the unit off and ensure correct supply voltage.

Check the supply voltage. Is this correct?

YES

Check the cooling circuit for any blockages. Is the cooling circuit OK?

YES

Check the winding resistances of the compressor. Are they OK?

YES

Check the electrical connections. Are these correctly implemented?

YES

NO

NO

NO

NO

NO

Does the transformer operate fault-free?

YES

Replace the outdoor unit.

Remove the blockage (shut-off valve open?)

Replace the compressor.

Replace or correct the electrical connections.

Replace the transformer or control boards of the outdoor unit.

36

Error code: P0

Reason: If the power supply to the compressor controller is faulty, the display shows the error code

“P0” and the unit switches off

Cause: n Electrical connection faulty n Faulty control board n Condenser fan motor defective or blocked n Compressor defective

Establish a correct connection between the control board and compressor.

Check the connecting cables between the control board and compressor? Are they faulty?

NO

Check the inverter controller (see section

Ä ‘Check the inverter controller’ on page 37

).

Fault eliminated?

YES

Check the condenser fan motor. Is it working correctly?

YES

Check the winding resistances of the compressor. Are they OK?

YES

Exchange the control boards of the outdoor unit.

YES

NO

NO

NO

Replace the control board.

See troubleshooting fault F5

Replace the compressor.

Check the inverter controller

Switch off the power supply to the unit. Wait until the capacitors are fully discharged and disconnect the compressor from the control board.

Check the resistances at the outputs of the control board with the aid of a digital voltmeter as follows:

Voltmeter

(-) Black

Normal resistance

(+) Red

U

V

W

(+) Red

N

¥

(multiple M W )

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REMKO ATY

Error code: P1

Reason: Overvoltage or undervoltage protection has tripped

Cause: n Faulty supply voltage n Refrigerant low or cooling circuit blocked n Faulty control board

Check the power supply. Is the supply voltage correct?

YES

Check the electrical connections. Are they OK?

YES

Switch the power on and put the unit into standby mode. Measure the voltage on the board, at contacts "P" and "N". This should be approx. 310V, 340V or 380V DC. Now start the unit. The voltage between "P" and "N" should now be between 220-400V. Is the correct voltage applied?

YES

Check the transformer. Is a defect present?

YES

Replace the transformer.

NO

NO

NO

NO

Switch the unit off and have the power supply checked/corrected.

Replace the electrical connections.

Replace the control board.

Replace the control board.

38

Error code: P2 (with units with a thermal contact)

Reason: If the test voltage of the thermal contact does not lie at 5V then the display shows the error message “P2”

Cause: n Faulty supply voltage n Refrigerant low or cooling circuit blocked n Faulty control board

Check the air flow volumes of the indoor unit and outdoor unit. Are they blocked or dirty?

NO

Switch off the power supply to the unit and switch it on again after 10 mins.

Does the unit start up?

YES

YES

Check the temperature of the compressor. Has it heated up?

NO

YES

Check the cooling circuit. Is it OK?

Clean the filter or heat exchanger and ensure a sufficient air flow volume.

YES

Check the thermal contact. Is it correctly connected?

YES

Measure the resistance of the thermal contact.

Is it 0?

YES

NO

NO

Connect it correctly.

Replace the thermal contact.

Replace the control board of the outdoor unit.

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REMKO ATY

Error code: P4

Reason: Safety shutdown of inverter controller. Internal system monitoring triggered (e.g. communication problem between board and compressor, the compressor speed is not OK)

Cause: n Faulty electrical connections n Inverter regulation on board defective n Condenser fan motor defective n Compressor defective n Control board defective

Check the electrical connection between the control board and compressor. Are these correctly implemented?

NO

Check the inverter controller. Is this functional?

YES

Check the condenser fan motor. Is it OK?

YES

Check the winding resistances of the compressor. Are they OK?

YES

Replace the control boards of the outdoor unit.

YES

Establish a proper connection.

NO

Replace the control board.

NO Follow the instructions for troubleshooting fault

F5

NO

Replace the compressor

Check individual components

Check the temperature probes

Disconnect the temperature probe from the control board and measure the resistance on the plug's contacts.

1: Multimeter

1

Fig. 29: Check temperature probes

Error code: dF

Reason: The unit is in heating mode and the outdoor unit is being defrosted. After the defrost phase, the indoor unit automatically switches back to the last operating mode

40

Resistance values for probes T1, T2, T3 and T4

K Ohm K Ohm K Ohm K Ohm

41

REMKO ATY

Resistance values for probe T5

K Ohm K Ohm K Ohm K Ohm

42

11 Care and maintenance

Regular care and observation of some basic points will ensure trouble-free operation and a long service life.

DANGER!

Prior to performing any work, ensure the equipment is disconnected from the voltage supply and secured to prevent accidental switch-on!

Care n Ensure the unit is protected against dirt, mould and other deposits.

n Only clean the unit using a damp cloth. Do not use any caustic, abrasive or solvent-based cleaning products. Do not use a jet of water.

n Before an extended shut down period starts, clean the fins on the outdoor unit and cover the outdoor unit with plastic to avoid infiltration of dirt into the unit.

Type of task

Checks/maintenance/inspection

General

Check voltage and current

Check function of compressor/fans

Dirt on condenser/evaporator

Check the refrigerant volume

Check condensate drainage

Check insulation

Check moving parts

Sealing test for cooling cycle

1) see note

Cleaning the housing

1.

Disconnect the power supply to the unit.

2.

Clean the grill and cover with a soft, damp cloth.

3.

Switch the power supply back on.

Air filter for indoor unit

Clean the air filter at intervals of no more than 2 weeks. Reduce this interval if the air is especially dirty.

Maintenance n It is recommended that you take out a maintenance contract with an annual service from an appropriate specialist firm.

This enables you to ensure the operational reliability of the plant at all times!

NOTICE!

Statutory regulations require an annual leak test for the cooling cycle dependant on the refrigerant quantity. Inspection and documentation of the work performed is to be carried out by specialist technicians.

Commissioning l l l l l l l l l

Monthly l

Halfyearly l l

Yearly l l l l l l 1)

Cleaning the filter

1.

Disconnect the power supply to the unit.

2.

Open the front side of the unit by folding the unit trim upwards and allowing it to engage

(Fig. 30).

3.

Raise the filter and pull it out pulling downwards.

4.

Clean the filter with a commercially available vacuum cleaner. To do so, turn the dirty side

so it is facing upwards (Fig. 31).

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REMKO ATY

5.

Dirt can also be removed by carefully cleaning with lukewarm water and mild cleaning agents. To do so, turn the dirty side

so it is facing down (Fig. 32).

6.

If water is used, let the filter dry out properly in the air before fitting it back into the unit.

7.

Carefully insert the filter. Ensure that it locates correctly.

8.

Close the front side as described above in reverse order.

9.

Switch the power supply back on.

10.

Switch the unit back on.

Cleaning the condensate pump (accessories)

The indoor unit may contain an optional integrated or separate condensate pump, which pumps out any accumulated condensate into higher positioned drains.

Observe the care and maintenance instructions in the separate operating manual.

Fig. 30: Open the unit trim upwards

Fig. 31: Cleaning with a vacuum cleaner

Fig. 32: Cleaning with lukewarm water

44

12 Shutdown

Temporary shutdown

1.

Let the indoor unit run for 2 to 3 hours in recirculation mode, or in cooling mode at maximum temperature, to extract any residual humidity from the unit.

2.

Shut down the system using the remote control.

3.

Switch off the electrical power supply to the unit.

4.

Cover the unit as far as possible with plastic foil in order to protect it from the influences of weather.

Permanent shutdown

Ensure that units and components are disposed of in accordance with local regulations, e.g. through authorised disposal and recycling specialists or at collection points.

REMKO GmbH & Co. KG or your contractual partner will be pleased to provide a list of certified firms in your area.

45

REMKO ATY

13 Exploded view of the unit and spare parts list

Exploded view of the unit

17

1

2

24

3

6

8

21

12

11

10

13

14 15

9

22

4

7

5

23

19

18

20

16

Fig. 33: Exploded view of the unit ATY 265-525

We reserve the right to modify the dimensions and design as part of the ongoing technical development process.

46

Spare parts list

IMPORTANT!

To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate)

No. Designation

1 Unit trim

2 Air filter, set

3 Fine dust filter

4 Unit trim, bracket

5 Servo motor, LED light indicator

6 Servo motor, LED light indicator

7 Housing front

8 Evaporator

9 Fan motor

10 Fan wheel

11 Rubber mount fan rotor

12 IR remote control

13 Air outlet flap, horizontal

14 Air outlet flap, vertical

15 Condensate hose

16 Housing rear wall incl. condensate tray

17 Wall bracket

18 Control board

19 Temperature probe, evaporator T2

20 Room temperature probe T1

21 Display board

22 Swing motor, horizontal/vertical

23 LED lighting, right

24 LED lighting, left

47

REMKO ATY

14 Index

A

Alarms

Checks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

Possible causes . . . . . . . . . . . . . . . . . . . . . . 28

Remedial measures . . . . . . . . . . . . . . . . . . . 28

C

Care and maintenance . . . . . . . . . . . . . . . . . . . 43

Cleaning

Air filter for indoor unit . . . . . . . . . . . . . . . . . 43

Condensate pump . . . . . . . . . . . . . . . . . . . . 44

Housing . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Combination possibilities . . . . . . . . . . . . . . . . . . . 9

Condensate drainage connection . . . . . . . . . . . 23

Connection of refrigerant piping . . . . . . . . . . . . 22

Customer service . . . . . . . . . . . . . . . . . . . . . . . 28

D

Disposal of equipment . . . . . . . . . . . . . . . . . . . . . 6

E

Electrical drawings . . . . . . . . . . . . . . . . . . . . . . 26

Electrical wiring . . . . . . . . . . . . . . . . . . . . . . . . . 24

Electrical wiring diagram . . . . . . . . . . . . . . . . . . 25

Environmental protection . . . . . . . . . . . . . . . . . . . 6

Exploded view of the unit . . . . . . . . . . . . . . . . . 46

F

Fault display on the indoor unit . . . . . . . . . . . . . 30

Function test

cooling mode. . . . . . . . . . . . . . . . . . . . . . . . . 27 heating mode. . . . . . . . . . . . . . . . . . . . . . . . 27

I

Infrared remote control . . . . . . . . . . . . . . . . . . . 10

Installation location, selection . . . . . . . . . . . . . . 18

Installation materials . . . . . . . . . . . . . . . . . . . . . 18

Intended use . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

K

Keys on the remote control . . . . . . . . . . . . . . . . 11

M

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Manual mode . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Minimum clearances . . . . . . . . . . . . . . . . . . . . . 19

O

Ordering spare parts . . . . . . . . . . . . . . . . . . . . . 47

P

Propellant in accordance with Kyoto Protocol . . . 8

R

Refrigerant piping, connection . . . . . . . . . . . . . . 22

Remote control

Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

S

Safe drainage in the event of leakages . . . . . . . 23

Safety

Dangers of failure to observe the safety

notes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Identification of notes . . . . . . . . . . . . . . . . . . . 4

Notes for inspection . . . . . . . . . . . . . . . . . . . . 5

Notes for installation . . . . . . . . . . . . . . . . . . . . 5

Notes for maintenance . . . . . . . . . . . . . . . . . . 5

Personnel qualifications . . . . . . . . . . . . . . . . . 4

Safety notes for the operator . . . . . . . . . . . . . 5

Safety-conscious working . . . . . . . . . . . . . . . . 4

Unauthorised modification . . . . . . . . . . . . . . . 5

Unauthorised replacement part manufacture . 5

Selection of installation location . . . . . . . . . . . . 18

Shutdown

Permanent . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Temporary . . . . . . . . . . . . . . . . . . . . . . . . . . 45

Spare parts list . . . . . . . . . . . . . . . . . . . . . . . . . 47

T

Troubleshooting and customer service . . . . . . . 28

U

Unit installation . . . . . . . . . . . . . . . . . . . . . . . . . 22

W

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

48

49

REMKO ATY

50

REMKO INTERNATIONAL

… and also right in your neighbourhood!

Make use of our experience and advice

Consulting

Thanks to intensive training, our consultants are always completely up-to-date in terms of technical knowledge. This has given us the reputation of being more than just an excellent, reliable supplier:

REMKO, a partner helping you find solutions to your problems.

Distribution

REMKO offers not just a well established sales network both nationally and internationally, but also has exceptionally highlyqualified sales specialists.

REMKO field staff are more than just sales representatives: above all, they must act as advisers to our customers in air conditioning and heating technology.

SFlb Customer Service

Our equipment operates precisely and reliably. However, in the event of a fault, REMKO customer service is quickly at the scene. Our comprehensive network of experienced dealers always guarantees quick and reliable service.

REMKO GmbH & Co. KG

Air conditioning and heating technology

Im Seelenkamp 12 D-32791 Lage

Postfach 1827

Telephone

Telefax

E-mail

Website

D-32777 Lage

+49 5232 606-0

+49 5232 606-260 [email protected]

www.remko.de

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