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Summary of Contents for REMKO ATY 266 DC
- Page 1 Operating and installation instructions REMKO ATY series Designer wall units for cooling and heating ATY 266 DC, ATY 356 DC 0232-2019-09 Edition 1, en_GB Read the instructions prior to performing any task!
- Page 2 Read these operating instructions carefully before commis- sioning / 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 mis- Refrigerant prints! Translation of the original...
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Page 3: Table Of Contents
Table of contents Safety and usage instructions......................5 1.1 General safety notes........................5 1.2 Identification of notes........................5 1.3 Personnel qualifications........................5 1.4 Dangers of failure to observe the safety notes................5 1.5 Safety-conscious working....................... 6 1.6 Safety instructions for the operator....................6 1.7 Safety notes for installation, maintenance and inspection ............. - Page 4 REMKO ATY series Commissioning........................... 39 Troubleshooting and customer service.................... 41 11.1 Troubleshooting and customer service..................41 11.2 Indoor unit fault analysis......................43 11.3 Resistances of the temperature probes..................54 Care and maintenance........................57 Shut-down............................59 Exploded view and spare parts lists....................60 14.1 Exploded view - Indoor unit......................
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Page 5: Safety And Usage Instructions
Safety and usage instructions DANGER! This combination of symbol and signal word 1.1 General safety notes warns of a situation in which there is immediate danger, which if not avoided may be fatal or Carefully read the operating manual before com- cause serious injury. -
Page 6: Safety-Conscious Working
REMKO ATY series In particular, failure to observe the safety notes All housing parts and unit openings, e.g. air may pose the following risks: inlets and outlets, must be kept clear. The units must be inspected by a service tech- The failure of important unit functions. -
Page 7: Unauthorised Modification And Changes
"certificate of warranty" to The setup, connection and operation of the REMKO GmbH & Co. KG at the time when the units and its components must be undertaken units are purchased and commissioned. -
Page 8: Environmental Protection And Recycling
REMKO ATY series 1.12 Environmental protection and recycling Disposal of packaging All products are packed for transport in environ- mentally friendly materials. Make a valuable contri- bution to reducing waste and sustaining raw mate- rials. Only dispose of packaging at approved collection points. -
Page 9: Technical Data
Technical data 2.1 Unit data Series ATY 266 DC ATY 356 DC Inverter wall-mounted room air conditioner com- Operating mode bination for cooling and heating 2.64 (1.23-3.29) 3.51 (1.26-4.44) Nominal cooling output Energy efficiency ratio SEER 0.71 1.21 Electrical rated power consumption, cooling 3.10... - Page 10 REMKO ATY series Data specific to indoor unit ATY 266 DC IT ATY 356 DC IT Application area (room volume), approx. Adjustment range, room temperature °C +17 to +30 Air flow volume per stage 305/421/530 305/421/530 dB (A) 26/31/37 27/30/37...
- Page 11 Data specific to outdoor unit ATY 266 DC AT ATY 356 DC AT Power supply V/Ph/Hz 230/1~/50 °C +5 to +30 Operating range, cooling Operating range, heating °C +5 to +50 Air flow rate, max. 1900 2000 Enclosure class Sound power level max.
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Page 12: Unit Dimensions
REMKO ATY series 2.2 Unit dimensions Outdoor units Fig. 1: Outdoor unit ATY 266-356 DC AT dimensions Measurements (mm) ATY 266-356 DC AT Indoor units Fig. 2: Indoor unit dimensions ATY 266-356 DC IT Measurements (mm) ATY 266-356 DC IT... -
Page 13: Design And Function
Design and function 3.1 Unit description The ATY 266-356 DC room air conditioners have a REMKO ATY...AT outdoor unit as well as an ATY...IT indoor unit. In cooling mode, the outdoor unit serves to output the heat extracted by the indoor unit from the room being cooled. -
Page 14: Operation
REMKO ATY series Operation 4.1 General notes Alarms are indicated by a code (see chapter The indoor unit is easily operated using the Troubleshooting and customer service). standard infrared remote control. The indoor unit beeps to acknowledge the correct transmission of data. -
Page 15: Keys On The Remote Control
4.3 Keys on the remote control "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 respec- tively. Press this key to maintain the most conven- ient temperature and save energy. - Page 16 REMKO ATY series “SILENCE/FP” key "FOLLOW ME" key Activates/deactivates the silent mode. Pressing the This key can be used to activate/deactivate the key for longer than 2 seconds activates the unit's FOLLOW ME function. In this mode, the room tem- frost protection function.
- Page 17 Indicators on the LCD The illustration of the LCD with all of the sym- bols 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.
- Page 18 REMKO ATY series "Dehumidification" mode Important Note Make sure that the indoor unit is connected to the power supply, and is switched on. In "Automatic" mode, the cooling unit automati- cally chooses between cooling, recirculation The operating mode indicator on the display of the and heating operation.
- Page 19 "Timer" mode Setting the “switch-off time” Press the "TIMER ON" key to set the "switch-on Press the "TIMER OFF" key. The remote time" and the "TIMER OFF" key to set the "switch- control shows "TIMER OFF", the last "switch- off" time for the unit. off time"...
- Page 20 REMKO ATY series Example TIMER function settings Combined TIMER (setting "TIMER ON" and "TIMER OFF" at the same time) "TIMER ON" (Auto on mode) "TIMER OFF ð "TIMER ON" Example: (On ð Stop ð Start) You want the air conditioning unit to switch on 2 hours from the time it was programmed.
- Page 21 "TIMER ON ð "TIMER OFF" SLEEP function (Off ð Start ð Stop) The sleep function saves energy while you sleep. This function is activated by pressing the key on Example: the remote control. Press the key before going to sleep. In cooling mode, the unit automatically You want the air conditioning unit to switch on in increases the set room temperature by 1 °C after 1 two hours from the time it was programmed, and...
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Page 22: Installation Instructions For Qualified Personnel
REMKO ATY series Installation instructions for qualified personnel 5.1 Important notes prior to instal- 5.2 Wall openings lation A wall opening of at least 70mm diameter and 10mm incline from the inside to the outside Transport the unit in its original packaging as must be created. -
Page 23: Selection Of Installation Location
5.4 Selection of installation Wind location If the unit is being installed in windy areas, ensure that the warm outlet air is discharged in the pre- Indoor unit vailing wind direction. If this is not the possible, it The indoor unit is designed for horizontal wall may be necessary to install a windbreak (to be pro- installation above doors. -
Page 24: Connection Variants For The Indoor Unit
REMKO ATY series Fig. 23: Installation inside buildings K: Cold fresh air / W: Warm air 3: Air shaft 1: Outdoor unit / 2: Additional fan 5.5 Connection variants for the indoor unit The following connection variants can be used for the refrigerant, condensate and control lines. -
Page 25: Minimum Clearances
5.6 Minimum clearances Observe the minimum clearances to allow access for maintenance and repair work and facilitate optimum air distribution. Fig. 25: Minimum clearances of the indoor unit and outdoor unit AT: Outdoor unit / IT: Indoor unit Air inlet / 2: Air outlet Indoor units Outdoor units Measure-... -
Page 26: Connection Of The Indoor Unit When The Refrigerant Piping Is Installed Under The Plaster
REMKO ATY series 5.7 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"... -
Page 27: Wall Bracket
5.8 Wall bracket Fig. 27: Wall bracket for indoor units ATY 266-356 DC IT (rear view) Measurements (mm) ATY 266-356 DC IT 5.9 Oil return measures Installation If the outdoor unit is installed at a higher level than 6.1 Installation of the indoor unit the indoor unit, suitable oil return measures must be taken. -
Page 28: Connection Of Refrigerant Piping
REMKO ATY series 6.2 Connection of refrigerant piping The refrigerant piping connection is established by the customer on the back side of the units. 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. - Page 29 The following instructions describe the installation of the cooling cycle and the assembly of the indoor unit and the outdoor unit. Label the refrigerant piping (injection and suc- The required pipe diameters are given in the tion pipes) as well as the associated electrical table "Technical data".
- Page 30 REMKO ATY series Fig. 33: Flanging the refrigerant piping 1: Flanging tool Fig. 35: Tightening the fitting 1: Tighten with the first open-ended spanner 2: Counter with the second open-ended spanner Pipe dimension in Tightening torque in Nm inches 1/4"...
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Page 31: Additional Notes On Connecting The Refrigerant Piping
6.3 Additional notes on connecting 6.4 Leak testing the refrigerant piping Once all the connections have been made, the pressure gauge station is attached to the Schrader When combining the outdoor unit with some valve as follows (if fitted): indoor units, the procedure for connecting the refrigerant piping may differ. -
Page 32: Adding Refrigerant
REMKO ATY series 6.5 Adding refrigerant Condensate drainage connection and safe The units contain a basic quantity of refrigerant. In addition, an additional amount of refrigerant must drainage be added for refrigerant piping lengths exceeding 5 metres per circuit. Refer to the following chart:... - Page 33 (view from front). Remove the stopper from the corresponding con- nection. Safe drainage in the event of leakages The REMKO oil separator OA 2.2 fulfils the fol- lowing list of requirements from regional regula- tions and laws. Condensate drainage connection...
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Page 34: Electrical Wiring
REMKO ATY series Electrical wiring 8.1 General notes 8.2 Connecting the indoor unit If a condensate pump, available as an acces- sory, is used in conjunction with the unit, it may DANGER! be necessary to install an additional relay with... -
Page 35: Outdoor Unit Connection
8.3 Outdoor unit connection Fix the line in the strain relief and re- assemble the unit. We recommend that a mains/repair switch be installed near the outdoor unit. The power supply is established on the outdoor unit. The indoor unit is supplied via the control line from the outdoor unit. - Page 36 REMKO ATY series Connection of optional condensate pump KP-6/KP-8 W 1(L) 2(N) W 1(L) 2(N) L N PE Fig. 42: Electrical wiring diagram Outdoor unit Condensate pump power supply Indoor unit Condensate pump fault contact KP-6/KP-8 condensate pump BK: black...
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Page 37: Electrical Drawings
8.5 Electrical drawings Indoor units ATY 266-356 DC IT Weiß/ White Rot/ Blau/ Yellow/ Blue Gelb W 1(L) 2(N) S N-IN Cn31 Fig. 43: Electrical drawings A: Control board 3: Fin motor, vertical B: Display circuit board 4: Fin motor, horizontal C: Control line from outdoor unit 5: Temperature probe, evaporator T2 1: DC fan motor... - Page 38 REMKO ATY series Outdoor units ATY 266-356 DC AT CN 17 CN 15 CN 60 Fig. 44: Electrical drawings A: Control board 4: Condenser/DC fan B: Mains cable 5: Temperature probe for condenser air inlet T4 C: Lines to indoor unit...
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Page 39: Before Commissioning
Before commissioning Commissioning After leak testing has been successfully com- pleted, connect the vacuum pump via the pressure NOTICE! gauge station to the valve connections on the out- door unit (see chapter "Leak testing") and create a Commissioning should only be performed by vacuum. - Page 40 REMKO ATY series Function test of cooling operating mode Remove the protective caps from the valves. Start the commissioning procedure by briefly opening the shut-off valves on the outdoor unit until the pressure gauge indicates a pressure of approx. 2 bar.
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Page 41: Troubleshooting And Customer Service
Troubleshooting and customer service 11.1 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"... - Page 42 REMKO ATY series Malfunction Possible causes Checks Remedial measures Windows and doors Have structural / usage Close windows and open. Heating / cooling modifications been doors / install additional load has increased made? units Cooling mode is not set Does the cooling symbol...
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Page 43: Indoor Unit Fault Analysis
Fault display on the indoor unit Display 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... - Page 44 REMKO ATY series Error code: Reason: The indoor unit does not receive a signal from the outdoor unit within 110 seconds. Cause: Electrical connection not configured correctly Control boards outdoor unit or indoor unit defective Switch off voltage, switch on again 2 minutes later.
- Page 45 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: Electrical connection faulty Evaporator fan wheel defective Evaporator fan motor defective Control board faulty Switch off voltage, switch on again 2...
- Page 46 REMKO ATY series 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.
- Page 47 Error code: Reason: The evaporator probe T2 measures the actual value with the compressor start and takes this as the reference value T . If, 5 minutes after the compressor start, the value T Start Start has not dropped by 2 °C for at least 4 seconds then the system assumes that the refrig- erant is low.
- Page 48 REMKO ATY series 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.
- Page 49 Error code: Reason: Safety shutdown due to overly high current consumption of individual unit components Cause: Faulty power supply Cooling circuit blocked Faulty control board Electrical connections faulty Compressor defective Switch the unit off and ensure correct supply Check the supply voltage. Is this correct? voltage.
- Page 50 REMKO ATY series Error code: Reason: If the power supply to the compressor controller is faulty, the display shows the error code “P0” and the unit switches off Cause: Electrical connection faulty Faulty control board Condenser fan motor defective or blocked...
- Page 51 Error code: Reason: Overvoltage or undervoltage protection has tripped Cause: Faulty supply voltage Refrigerant low or cooling circuit blocked Faulty control board Check the power supply. Is the supply voltage Switch the unit off and have the power supply correct? checked/corrected.
- Page 52 REMKO ATY series Error code: P2 (with units with a thermal contact) Reason: If the test voltage of the thermal contact does not lie at 5 V, then the display shows the error message “P2” Cause: Faulty supply voltage Refrigerant low or cooling circuit blocked...
- Page 53 Error code: Reason: Safety shutdown of inverter controller. Internal system monitoring triggered (e.g. communi- cation problem between board and compressor, the compressor speed is not OK) Cause: Faulty electrical connections Inverter regulation on board defective Condenser fan motor defective Compressor defective Control board defective Check the electrical connection between the control board and compressor.
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Page 54: Resistances Of The Temperature Probes
REMKO ATY series 11.3 Resistances of the Temp. Resistance Temp. Resistance temperature probes (°C) (kW) (°C) (kW) 4.39 1.21 Probe T1, T2, T3 and T4 4.21 1.17 Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) 4.05 1.14 115.27 18.72 3.89 1.10... - Page 55 Temp. Resistance Temp. Resistance Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) (°C) (kW) (°C) (kW) 0.42 0.30 82.54 18.96 0.41 0.29 78.79 18.26 0.40 0.28 75.24 17.58 0.39 0.28 71.86 16.94 0.38 0.27 68.66 16.32 0.37 0.26 65.62 15.73 0.36 0.26 62.73...
- Page 56 REMKO ATY series Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) 5.66 2.86 5.49 2.78 5.32 2.70 5.16 2.63 5.00 2.56 4.85 2.49 4.70 2.42 4.56 2.36 4.43 2.29 4.29 2.23 4.17 2.17 4.05 2.12 3.93 2.06 3.81 2.01 3.70 1.96...
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Page 57: Care And Maintenance
Care and maintenance Maintenance It is recommended that you take out a mainte- Regular care and observation of some basic points nance contract with an annual service from an will ensure trouble-free operation and a long appropriate specialist firm. service life. DANGER! This enables you to ensure the operational reli- Prior to performing any work, ensure the equip-... - Page 58 REMKO ATY series Dirt can also be removed by carefully Cleaning the condensate pump (accessories) cleaning with lukewarm water and mild The indoor unit may contain an optional integrated cleaning agents. To do so, turn the dirty side or separate condensate pump, which pumps out so it is facing down (Fig.
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Page 59: Shut-Down
REMKO GmbH & Co. KGor your contractual partner will be pleased to provide a list of certified firms near you. -
Page 60: Exploded View And Spare Parts Lists
REMKO ATY series Exploded view and spare parts lists 14.1 Exploded view - Indoor unit Fig. 50: Exploded view of the ondoor unit We reserve the right to modify the dimensions and design as part of the ongoing technical development... -
Page 61: Spare Parts List - Indoor Unit
14.2 Spare parts list - Indoor unit IMPORTANT! To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate) No. Designation Unit trim Air filter, set Fine dust filter Unit trim, bracket Servo motor, LED light indicator Servo motor, LED light indicator Housing front... -
Page 62: Exploded View - Outdoor Unit
REMKO ATY series 14.3 Exploded view - Outdoor unit Fig. 51: Exploded view of the outdoor unit We reserve the right to modify the dimensions and design as part of the ongoing technical development process. -
Page 63: Spare Parts List - Outdoor Unit
14.4 Spare parts list - Outdoor unit IMPORTANT! To ensure the correct delivery of spare parts, please always the device type with the corresponding serial number (see type plate) No. Designation Front panel, left Protection grid, front plate Fan blade Fan motor Fan motor bracket Corner panel... -
Page 64: Index
REMKO ATY series Index Alarms Oil return measures ..... . 27 Checks ......41 Ordering spare parts . - Page 66 REMKO ATY series...
- Page 68 REMKO QUALITY WITH SYSTEMS Air-Conditioning | Heating | New Energies Telephone +49 (0) 5232 606-0 REMKO GmbH & Co. KG Hotline within Germany +49 (0) 5232 606-0 Klima- und Wärmetechnik Telefax +49 (0) 5232 606-260 Im Seelenkamp 12 E-mail info@remko.de...
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