Related Manuals for REMKO MVD 702
Summary of Contents for REMKO MVD 702
- Page 1 Operating and installation instructions REMKO MVD series Ceiling cassettes for cooling or heating MVD 702, MVD 1002 0214-2020-01 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 R410A 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
10.3 Resistances of the temperature probes..................41 Care and maintenance........................42 Shut-down............................44 Exploded view of the unit and spare parts list................. 45 13.1 Exploded view of the unit MVD 702-1002................... 45 13.2 Spare parts list MVD 702-1002....................46 Index..............................47... -
Page 4: Safety And Usage Instructions
REMKO MVD series Safety and usage instructions CAUTION! This combination of symbol and signal word 1.1 General safety notes warns of a potentially hazardous situation, which if not avoided may cause injury or mate- Carefully read the operating manual before com- rial and environmental damage. -
Page 5: Safety Notes For The Operator
"certificate of warranty" to conditions stipulated in this manual and comply REMKO GmbH & Co. KG at the time when the with all applicable regional regulations. units are purchased and commissioned. -
Page 6: Transport And Packaging
REMKO MVD series 1.11 Transport and packaging The devices are supplied in a sturdy shipping con- tainer. 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. -
Page 7: Technical Data
Technical data 2.1 Unit data Series MVD 702 MVD 1002 Ceiling cassette for inverter multisplit outdoor units Operating mode for cooling or heating 7.10 10.00 Nominal cooling output Electrical rated power consumption, cooling 8.00 11.00 Nominal heat capacity Electrical rated power consumption, heating Application area (room volume), approx. -
Page 8: Unit Dimensions
REMKO MVD series 2.2 Unit dimensions d = 32 d = 75 Fig. 1: Dimensions MVD 702-1002 (all measurements in mm) 1: Suction gas pipe connection 3: Fresh air connection 2: Injection pipe connection 4: Condensate drainage connection Unit type... -
Page 9: Design And Function
The indoor unit consists of a fin evaporator, evapo- rator fan, controller and condensate tray. The Fig. 2: System layout indoor unit can be combined with REMKO outdoor units from the MVV range that provide sufficient Outdoor area combination options. The outdoor unit is controlled Indoor area by the regulation of the indoor unit. -
Page 10: Combinations
REMKO MVD series 3.2 Combinations The MVD 222-452 indoor units can be used together with the MVV series outdoor units. Selection of the indoor units to be connected takes place solely according to the maximum refrigerating capacity of all indoor units to be connected. Max. 130 %. - Page 11 Fig. 5: Connection possibilities on multiple levels A: Outdoor area 3: Distributor B: Indoor area 4: Y-distributor 1: Outdoor unit 5: Main line 2: Indoor units of the series MVW, MVD or MXV 6: Ancillary line...
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Page 12: Operation
REMKO MVD series Operation NOTICE! 4.1 General notes Immediately replace flat batteries with a new The indoor unit is easily operated using the set, otherwise there is a risk of leakage. It is standard infrared remote control. The indoor unit... -
Page 13: Keys On The Remote Control
4.3 Keys on the remote control “Mode” key Operating mode selection (Auto ⇒ Cooling ⇒ Heating ⇒ Dehumidification ⇒Recirculation) “Arrow down” key Decreases the selected temperature or timer set- tings. "On/Off" key Switches the unit on or off. "Display" key Switches the display of the indoor unit on or off (if fitted). - Page 14 REMKO MVD series “Swing” key Low-noise operating mode Switches the automatic upward and downward Appears when the Low-noise operating mode is movement of the air discharge fin on and off. active. “Eco” key Unit status Turns the power save mode on (if fitted).
- Page 15 Select the operating mode and temperature Individually adjusting the air discharge fin Press the key several times to select the Use the key to move the air discharge desired operating mode. The selection fin to 5 different positions. appears on the display of the IR remote con- trol.
- Page 16 REMKO MVD series Switching the indoor unit display off Energy saving function This function enables the display illumination of the If the unit is in the cooling or heating mode, the indoor unit to be switched off. energy saving function can be activated with the IR...
- Page 17 Activate/deactivate delayed switching on and Activating the “Cooling only” function The IR remote control is factory programmed for The unit switch-on delay can be activated the cooling and heating functions. The “Cooling only” function can be activated or deactivated by with the key.
- Page 18 REMKO MVD series Manual unit addressing 2. Assigning the unit address The MVV series outdoor units automatically assign If the addressing mode (see above) is active, the addresses to the indoor units during commis- signal transmission must be activated by pressing sioning.
- Page 19 Changing the parameters for fan functions Selectable parameters Pressing the keys simultaneously Parameter Definition for 5 seconds displays the parameter level on the IR remote control. 7 fan stages, temperature incre- ments of 0.5 °C 3 fan stages, temperature incre- ments of 1.0 °C 7 fan stages, temperature incre- ments of 1.0 °C (factory setting)
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Page 20: Installation Instructions For Qualified Personnel
Only use the union nuts supplied with the Fig. 9: Minimum clearances MVD 702-1002 refrigerant piping and remove these shortly (all measurements in mm) before connecting the refrigerant piping. -
Page 21: Installation
A: Distance from the suspended ceiling indoor unit as described below. MVD 702 = 230 mm Check again that the unit is level. MVD 1002 = 300 mm The final task is to tighten the counter nuts and attach the cover. - Page 22 REMKO MVD series Fresh air connection The fan should be connected to a separately protected electrical supply that is to be pro- The unit is prepared for the intake of fresh air. vided by the customer. In addition, the polystyrene partition wall that is framed in the following illustration must be removed with a knife (Fig.
- Page 23 Calculation of the supplementary refrigerant to be added The refrigerant quantity to be added is dependent on the dimensioning and length of all liquid pipes, as well as the number of Y-pieces and distribution units used. In the following you will find an example and a blank drawing for calculating the refrigerant quantity to be added.
- Page 24 REMKO MVD series The following sketch and the empty table are provided for calculating the refrigerant quantity to be added and must be completed by the installer. Fig. 17: Sketch for determining the refrigerant quantity to be added Component Number...
- Page 25 NOTICE! When configuring and topping up the system with refrigerant, observe the practical limit value for refrigerants according to DIN EN 378-1! Practical limit value R410A: 0.44 kg/m room volume of the smallest room. If this is exceeded, implement suitable measures for reducing the possible refrigerant concentration per DIN EN 378-1.
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Page 26: Condensate Drainage Connection And Safe Drainage
REMKO MVD series Condensate drainage connection and safe NOTICE! drainage If condensate is removed via a duct in accord- ance with DIN EN 1717, ensure that any micro- The condensate drainage line should have an biological contamination present on the waste- incline of min. -
Page 27: Electrical Wiring
Electrical wiring 8.1 General connection and safety 8.2 Unit connection instructions Make the connection as follows: The units require a protected power supply cable Open the air inlet grill. connected to the outdoor unit and indoor unit, as Loosen the switch cabinet's cover (Fig. 21). well as a four-core control line connected from the outdoor unit to the indoor unit. -
Page 28: Electrical Wiring Diagram
REMKO MVD series 1: Infeed for the power supply and control line 2: Terminal block Check all plugged and clamped terminals to verify that they are seated correctly and make permanent contact. Tighten as required. Fig. 21: Unit connection 8.3 Electrical wiring diagram... - Page 29 Minimum cross section Line configuration Indoor unit supply 3 x 1.5 mm Outdoor unit supply 5 x 2.5 mm Communication line 3 x 0.75 mm shielded Central remote control 3 x 0.75 mm shielded The control lines require continuous lubrication. Additional clamping points (such as branch boxes) must therefore not be used! The control is always connected with the indoor units and outdoor units in series.
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Page 30: Electrical Drawings
REMKO MVD series 8.4 Electrical drawings MVD 702-1002 WHITE BLACK A: Control board Fan motor B: Connection for wired remote control Evaporator package temperature sensor C: Control line Suction gas temperature sensor D: Power supply Room temperature sensor E: Connection for wired remote control... -
Page 31: Dip Switch, Functions
8.5 DIP switch, functions Switch Function Setting Description S W1 The cooling request is terminated when the measured tempera- ture actual value is equal to the set temperature setpoint value (factory setting Control behav- SW1_1 iour in cooling S W1 mode Cooling request is terminated when measured temperature actual value is 2 °C lower than the set temperature setpoint... - Page 32 REMKO MVD series DIP switch functions (continued) Switch Function Setting Description S W5 The fan does not run when the heat exchanger fluid tempera- ture is 15 °C or colder (factory setting) S W5 The fan does not run when the heat exchanger fluid tempera- ture is 20 °C or colder...
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Page 33: Commissioning
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. Function test of the operating modes Switch the power supply on. -
Page 34: Troubleshooting And Customer Service
REMKO MVD series Troubleshooting and customer service 10.1 Troubleshooting The unit and components are manufactured using state-of-the-art production methods and tested several times to verify that they function correctly. However, if malfunctions 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 "Trouble- shooting and customer service"... - Page 35 Malfunction Possible causes Checks Remedial measures Filter is dirty/air inlet/ Have the filters been Clean the filters outlet opening is blocked cleaned? by debris Windows and doors Have structural/usage Close windows and open. Heating/cooling modifications been doors/install additional load has increased made? units Neither cooling nor...
- Page 36 REMKO MVD series Malfunction indicated by display Error Description Cause Details Addressing conflict Addressing was changed / deleted Ä on page 37 Indoor units are set in various oper- Ä on page 37 Mode conflict ating modes Communication error between indoor Power supply defective, communica- Ä...
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Page 37: Fault Analysis
10.2 Fault analysis Error code FE: Addressing conflict The DIP switch set- ting was changed Switch off the power on the outdoor unit supply to the Outdoor unit Outdoor unit system, switch the MVV 1200 DC MVV 1600-2000 DC DIP switch setting on the outdoor unit back to factory set- Has manual... - Page 38 REMKO MVD series Error code E1: Communication error between indoor unit and outdoor unit Switch off power to the system for 1 minute, re- establish power supply, start system Is the communication line correctly wired? Correctly wire communication line Has shielded cable been used?
- Page 39 Error code E3: Fault with T2 probe, evaporator centre Is the probe correctly mounted on the circuit Correctly mount the probe on the circuit board board? Is the probe visibly damaged? Replace probe Are the probe resistance values OK? Replace probe Ä...
- Page 40 REMKO MVD series Error code E6/EC: Fault with DC motor output Fault description: No motor recognised by control board, specific speed difference between actual speed and target speed. Possible causes: The connection between the control board and motor is defective...
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Page 41: Resistances Of The Temperature Probes
10.3 Resistances of the Temp. Resistance Temp. Resistance temperature probes (°C) (kW) (°C) (kW) 4.05 1.14 Temp. Resistance Temp. Resistance 3.89 1.10 (°C) (kW) (°C) (kW) 3.73 1.06 115.27 17.80 3.59 1.03 108.15 16.93 3.45 1.00 101.52 16.12 3.32 0.97 96.34 15.34 3.19... -
Page 42: Care And Maintenance
REMKO MVD series Care and maintenance Temp. Resistance Temp. Resistance (°C) (kW) (°C) (kW) Regular care and observation of some basic points will ensure trouble-free operation and a long 0.40 0.29 service life. 0.39 0.28 0.38 0.28 0.37 0.27 DANGER! 0.36... - Page 43 Type of task Commis- Monthly Half- Yearly sioning yearly 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 see note Cleaning the filter NOTICE! Disconnect the power supply to the unit.
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Page 44: Shut-Down
REMKO GmbH & Co. KG or your contractual partner will be pleased to provide a list of certified firms near you. -
Page 45: Exploded View Of The Unit And Spare Parts List
Exploded view of the unit and spare parts list 13.1 Exploded view of the unit MVD 702-1002 We reserve the right to modify the dimensions and design as part of the ongoing technical development process. -
Page 46: Spare Parts List Mvd 702-1002
REMKO MVD series 13.2 Spare parts list MVD 702-1002 No. Designation MVD 702 MVD 1002 Control board Condensate tray Fan wheel Evaporator Evaporator fan motor Protection grid On request by providing the serial number Condensate pump Liquid level switch Condensate hose... -
Page 47: Index
Index Possible causes ..... . 34 Remedial measures ....34 Care and maintenance . - Page 48 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...