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CLIVET MV6-Xmi 252T-2700T Series Manual For Installation, Use And Maintenance
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CLIVET MV6-Xmi 252T-2700T Series Manual For Installation, Use And Maintenance

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OUTDOOR UNIT
VRF
MV6-XMi 252T-2700T Series
M0VS40P17-02 -09-20

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Summary of Contents for CLIVET MV6-Xmi 252T-2700T Series

  • Page 1 OUTDOOR UNIT MV6-XMi 252T-2700T Series M0VS40P17-02 -09-20...
  • Page 2 MUST NOT be performed. WARRANTY The product CLIVET is covered by a conventional warranty, valid from the date of purchase of the appliance, the conditions of which are specified in the GENERAL CONDITIONS OF SALE available at www.clivet.com WARNING –...
  • Page 3 INDEX General Details ..........4 7 Special functions ........... 47 General warnings and safety rules Configuration of the dip-switches 1.2 Description of system components 7.1.1 Controller type 1.3 Accessories 7.1.2 Static pressure 1.4 Identification 7.1.3 Silent mode 7.1.4 Outdoor unit address 2 Preliminary indications .........
  • Page 4 WARNING – This manual is the property of CLIVET and reproduction or transfer to third parties of the contents of this document is prohibited. All rights reserved. It is an integral part of the product; make sure that it is always supplied with the appliance, even in case of sale/transfer to another owner, so that it can be consulted by the user or by personnel authorised to carry out maintenance and repairs.
  • Page 5 General Details – Install the electrical cables making sure that they are not taut. Otherwise, they could break or overheat causing smoke or fire. – The cables must be arranged so that the control board cover can close properly. If the control board cover is not closed properly, corrosion may occur and the connection points on the terminals may become hot, ignite or cause electric shock.
  • Page 6 General Details CAUTION DANGER – When connecting refrigerant piping,keep substances or gases other than the specified refrigerant from entering the unit. The presence of other gases or substances can reduce unit performance and cause an abnormal increase in pressure in the refrigeration cycle. This can lead to explosion hazards and resulting injuries. –...
  • Page 7 General Details IT IS PROHIBITED TO – Make changes and/or repair attempts to the product. Any repairs must be carried out by a qualified technician. – Touch the device with wet, damp and/or barefoot body parts. If you notice current leakage that can be detected on contact with metal parts of the appliance, disconnect the switch, unplug it from the power supply socket and contact an authorised dealer.
  • Page 8 General Details Description of system components Fig. 1 1 Air inlets 4 Air outlet 2 Door for connection of the refrigeration lines and wiring 5 Holes for handling with a fork lift truck 3 Fixed foot for securing to the ground WARNING The images in this manual are provided for illustrative purposes only.
  • Page 9 General Details Accessories The air conditioning system is provided with the following accessories. Use all specified installation components and accessories to install it. Description Aspect Quantity Flat blade screwdriver Elbow at 90° Sealed cap Connecting pipe Suitable resistance Bag of screws (accessory) Installation manual Identification The outdoor unit can be identified by the serial number label (1) that shows the technical and performance data of the...
  • Page 10 Preliminary indications 2 PRELIMINARY INDICATIONS Example of balancing with cyclical alternation of units: Cycle 1 The first unit works at full capacity, the second works at Combinations of outdoor/indoor units medium capacity and the third remains idle. The table on the next page indicates: –...
  • Page 11 Preliminary indications Single unit power (Hp) Total power 252T 280T 335T 400T 450T 500T 560T 615T 670T 730T 785T 850T 900T indoor units (Hp) 10Hp 12Hp 14Hp 16Hp 18Hp 20Hp 22Hp 24Hp 26Hp 28Hp 30Hp 32Hp ° ° ° ° °...
  • Page 12 Preliminary indications Unit dimensions 670T - 730T - 785T - 850T - 900T 252T - 280T - 335T 430 kg 1730 mm (670/730/785) 990 mm 227 kg 475 kg (850/900) Fig. 9 Fig. 6 Master and slave units 400T - 450T In systems with several outdoor units, these must be placed in descending order, from the unit with the highest power to the unit with the lowest power.
  • Page 13 Preliminary indications Model identification Dimensions of the connection pipe Model Power supply 252T - 280T - 335T (1) 252T 25.2 400V + N Three-phase 400T - 450T - 600T - 560T - 615T (2) 670T - 730T - 785T - 850T - 900T (3) 280T 400V + N Three-phase 335T...
  • Page 14 Preliminary indications Length of refrigeration piping Installation with outdoor units at the bottom In order to function correctly the system must take into account: – the total length of the pipes (1); – the maximum difference in height between the outdoor and indoor units (2) (3);...
  • Page 15 Installation 3 INSTALLATION Receiving the product The appliance is supplied packed. Handling must be carried out by appropriate means in view of the overall Preliminary warnings weight of the package. Upon receiving the appliance, check the perfect integrity CAUTION of all parts. All installation operations must be carried out Check that the model, specifications and quantity with the appliance completely stopped and...
  • Page 16 Installation IT IS PROHIBITED TO WARNING disperse the packaging material in the During all handling operations, use the environment and leave it within the reach appropriate PPE such as hard hat, gloves and of children as it can be a potential source of safety shoes.

  • Page 17: Model Kw

    Installation Dimensions of the installation area In the case of several rows of appliances, there must be a distance of at least 1m between each row. The appliance must be installed in such a way that a sufficient amount of air can flow through the unit itself. If there is a side wall adjacent to the appliance, the latter must be at least 800mm higher than the side wall.
  • Page 18 Installation In the case of forced installation less than one metre Specifications for fixing from a higher wall of the appliance, it is recommended to For correct installation of the unit on the base, the latter must: make a duct for the correct discharge of air. The vertical section of the duct must extend higher than the wall.

  • Page 19: 252T

    Installation – The location of the fixing holes in the appliance is Ducting of outdoor unit indicated in the table below If it is necessary to duct the outdoor unit, the following Model instructions must be observed: 400T 670T – Remove the fan protection grille (1), otherwise the 252T 450T 730T...

  • Page 20: 252T - 280T - 335T

    Installation 500T - 560T - 615T Static pressure Note 0 Pa Factory conditions (without ducting) Remove the grille and connect to 0 - 20 Pa the duct Remove the grille and configure 20 - 40 Pa at the dip switches (see “7.1.2 Static pressure”...
  • Page 21 Installation 3.6.1 Transverse ducting 3.6.2 Longitudinal ducting Fig. 30 Fig. 29 Ref. Description Value (mm) Ref. Description Value (mm) 252T - 280T - 335T 252T - 280T - 335T ≥ 300 Radius of inner curve ≥ 300 Radius of inner curve ≥...
  • Page 22 Installation Use self-tapping screws ST3.9 (1) to fasten the duct to the panels (6) and (7). appliance Fig. 31 Fig. 33 The number of fixing screws depends on the model. Disassembly of panels the panels are fixed with clips to the right and left The panels must be removed in order to connect the uprights (8) and to the central upright (9) and with hooks refrigerant piping, make the electrical connections and...
  • Page 23 Refrigerant piping 4 REFRIGERANT PIPING In systems with several outdoor units, these must be placed in descending order, from the unit with the highest power to the unit with the lowest power. The unit with the highest power must be placed in the Installation of the refrigerant piping first branch and must be set as the master unit, while the others must be set as the slave units.
  • Page 24 Refrigerant piping To install the lines, use copper pipes for air conditioning. Eliminate residual moisture lines. Keep the ends of the pipes sealed until installation to Copper plating, formation of acid sludge, freezing of prevent the ingress of polluting agents such as dust, the laminating devices, formation of acids that corrode water and dirt.
  • Page 25 Refrigerant piping Welding must be done in a neutral atmosphere (nitrogen). An inert atmosphere (free of moisture and oxygen) must be created inside the pipeline. In this way, no oxide formations are created during welding Fig. 40 Fig. 38 CAUTION Do not use or integrate existing pipes.
  • Page 26 Refrigerant piping 4.1.1 Sizing of the refrigerant piping Allowed value Piping + 2x ( L Total length of pipes (Total extended length) 1000m + (a, b, c, d, e, f, 16,) g, h, i, j, k, l, m, n, o, p, q) Effective length 175m Pipe length...
  • Page 27 Refrigerant piping The maximum length of the connection pipes between CAUTION the branch joint and the furthest indoor unit must not In case of exceeding 40m, increase the diameter exceed 175m (200m of equivalent length). of the internal main pipes by one measure. Perform this operation only on pipes that are (140) (71)
  • Page 28 Refrigerant piping Selection of main pipe (L1) and first internal branch joint (A) CAUTION If the equivalent length of all liquid pipes is less than 90m, If the outdoor unit is installed higher than the use only the measurements of the main pipe and of the indoor units and the difference in height is internal main pipes indicated in the following table.
  • Page 29 Refrigerant piping Selection of the external branch pipe Selection of internal auxiliary pipes The internal auxiliary pipes (a ... q) must respect the diameter indicated in the table, based on the overall 335T 615T 335T 615T 900T power of the indoor units. (14) (7,1) (14)
  • Page 30 Refrigerant piping EXAMPLE OF SIZING OF REFRIGERANT PIPING The example below illustrates the piping selection procedure for a system consisting of three outdoor units (32HP + 22HP + 12HP) and 17 indoor units. The total equivalent length of the liquid piping of the system is greater than 90m; the length of the piping between the furthest indoor unit and the first internal branch joint is less than 40m and the length of each internal auxiliary pipe (from each indoor unit to its closest branch joint) is less than 10m .
  • Page 31 Refrigerant piping CONNECTION BETWEEN OUTDOOR UNITS The pipes connecting the outdoor units must be horizontal and must not be placed higher than the refrigerant outlets. If necessary, the piping can be moved vertically below the Pipes from multiple outdoor units must be installed so outlets to avoid obstacles.
  • Page 32 Refrigerant piping USE OF BRANCH JOINTS USE OF MANIFOLDS To install the refrigeration lines it is possible to use 4 or 8 branch manifolds. For more information, refer to the – The branch joints must be installed at a maximum relevant manual.
  • Page 33 Refrigerant piping Thermal insulation of the pipes Make sure that the pipe connections are completely isolated from the indoor unit. Insulate the refrigerant and gas piping separately with insulating polyethylene foam materials. Incorrect or missing insulation causes condensation and subsequent dripping. WARNING Pipes laid in ceilings are particularly sensitive to condensation.
  • Page 34 Refrigerant piping Waterproof floor Fig. 63 Roof pipe Fig. 64 Protections of parts that penetrate an area with combustible material or a partition wall Fig. 65 1 Insulating sheath 2 Insulating material 3 Coating 4 Grouting material 5 Tape 6 Waterproof layer 7 Sleeve with a flange 8 Grouting with a non-flammable material (e.g.
  • Page 35 Electrical connections 5 ELECTRICAL CONNECTIONS In order to make the electrical connections, the cover of the electrical panel must be removed. Loosen the screws (1), lift the cover (2) and remove it by Preliminary information pulling it towards you. ATTENTION ELECTRIC DANGER –...
  • Page 36 Electrical connections CAUTION The refrigerant piping, power cables and communication cables are usually laid in parallel. The power and communication cables must be laid in separate conduits to avoid signal interference. If the power supply is less than 10A, the two conduits must be at least 300mm apart.
  • Page 37 Electrical connections This appliance complies with EN/IEC 61000-3-12 (electromagnetic compatibility EMC) if the following condition is met: – the short-circuit power Ssc at the point at which the customer's system is connected to the mains is greater than or equal to the minimum value Ssc; Model Minimum value Ssc (KWA) 252 T...
  • Page 38 Electrical connections Power supply line The lower part of the clip (1) is fixed on the electrical panel, under the terminals. The upper part (2) is supplied The cable must be connected to the terminal block using together with the other accessories. Secure the top with only crimped cables with eyelet wire terminals.
  • Page 39 Electrical connections Calibration of the power cable and automatic switch of the outdoor unit must be selected according to the regulations in force and the table below Outdoor unit Power supply Compressor Model Min / Max Voltage (V) MCA (A) TOCA (A) MFA (A) MSC (A) RLA (A) FLA (A) 252 T...
  • Page 40 Electrical connections Communication bus network Connecting the shield – For the bus network, use 0.75 mm 3-pole shielded The cables of the bus network (transmission line) must be cables. Using other types of cables may result in laid in such a way as to avoid electromagnetic interference. interference or malfunctions.
  • Page 41 Electrical connections CAUTION CAUTION Earth only at one point in the system since Within a group, connect only indoor units of multiple points can generate transmission noise. the same type (wall, ducted, recessed). Connect the various indoor and outdoor units as shown in the diagram below.
  • Page 42 Electrical connections L2 N A B CN A B CN A B CN A B CN H1 H2 E P Q E H1 H2 E P Q E H1 H2 E P Q E P Q E A B C D E P Q E A B C D E P Q E...
  • Page 43 Starting up the system 6 STARTING UP THE SYSTEM Flushing the pipes. The refrigerant piping must be flushed with nitrogen to remove dust, moisture and other particles that could cause the compressor to malfunction if not eliminated before the system is put into operation. Flushing should be carried out after completing connection of the piping, with the exception of final connections to indoor units.
  • Page 44 Starting up the system – Perform vacuum drying. See paragraph “6.3 Vacuum To perform drying, a vacuum pump is used to lower operation” page 44 the pressure in the pipes until all the moisture present evaporates. If drying cannot be carried out immediately, reduce the It is necessary to use a vacuum pump capable of maintaining pressure to 0.5-0.8MPa until drying is possible.
  • Page 45 Starting up the system Charging with refrigerant The outdoor unit is supplied with a basic refrigerant charge. Factory pre-charge equivalent Model (Kg) (tons) CAUTION 252T 22.97 Charge the refrigerant only after having done 280T 22.97 “6.2 Gas leak test” page 43 and “6.3 Vacuum 335T 22.97 operation”...
  • Page 46 Starting up the system Once the value has been obtained, proceed as follows: CAUTION Before starting the system, make sure to – Place a tank of R410A refrigerant on a scale. In this complete all the checks/controls required way the refrigerant will be charged in the liquid state. before initial start-up (see paragraph “8.1 Start- up preparations”...
  • Page 47 Special functions 7 SPECIAL FUNCTIONS Legend Dip-switch ON (1) Configuration of the dip-switches Dip-switch OFF (0) The dip-switches can be configured in various ways at the switches on the main control board of the outdoor unit. 7.1.1 Controller type Switch Settings Description Use the new centralised...
  • Page 48 Special functions 7.1.3 Silent mode This function allows you to limit operation of the compressor and cooling fan to reduce noise. 100% By specifying the number of hours that must elapse between the daily heat peak and activation, and the number of hours before reactivation, it is possible to set both activation and deactivation of silent mode.
  • Page 49 Special functions 7.1.4 Outdoor unit address 7.1.6 Priority mode With this configuration, the operation of the outdoor unit Switch Settings Description can be changed according to the command received Set the address of the outdoor from the indoor unit. unit. Switch Settings Description...
  • Page 50 Special functions Cooling priority 7.1.7 Addressing mode with system in heating mode: Switch Settings Description – if an indoor unit is started in cooling mode, the outdoor unit stops and restarts in cooling Reserved 1 2 3 mode after 5 minutes. All units started in cooling mode are started.
  • Page 51 Special functions Digital display To enter the operating mode menu, press and hold the button (3) for 5 seconds. Specific functions can be accessed by pressing the buttons on the main control board of the outdoor unit To return to the previous menu, press the button (3) The complete range of functions is only available for the Master outdoor unit.
  • Page 52 Special functions 7.2.1 Menu mode Notes 1 Only for master unit. (All indoor units work in cooling Menu 1 Description Note mode. Debug mode 1 H. 1.4. 2 Only for master unit. (If all indoor units are second H. 1.5. Debug mode 2 generation they will operate in heating mode.
  • Page 53 Special functions 7.2.2 System control mode Exit the operating mode menu and press buttons (4) and (5) to enter the system control mode. Display 1 Parameters shown on Display 2 Unit address. 0 = master unit Capacity of outdoor unit. 0 = 8Hp ... C = 32Hp Number of outdoor units Number of indoor units (as set on PCB) Total capacity of outdoor unit Displayed on the master unit only.
  • Page 54 Special functions 7.2.3 Output digital display Code Description Slave unit malfunction (1HD indicates 1 slave The parameters visible on the two displays according to unit error) the status of the outdoor unit are listed below 3 cases of PL protection in 100 minutes Display 1 Display 2 Status of outdoor unit...
  • Page 55 Start-up 8 START-UP Commissioning Start-up preparations WARNING It is necessary to fill in the commissioning report as a record the of operating status of the system once the procedure is completed. CAUTION Make sure that the insulation resistance is at least 1 M Ω...
  • Page 56 Start-up VRF system addressing procedure in AUTOMATIC mode Carry out the following procedure: – Turn off all outdoor units (ODUs) and all indoor units (IDUs); – Set, on the Master outdoor unit only, the number of indoor units using the ENC3 rotary-switch and the S12 dip-switch and following the instructions in the description of the diagram on the cover of the electrical panel or in this manual.
  • Page 57 Maintenance 9 MAINTENANCE Below are some things that do not represent malfunctions The outdoor unit makes a hissing noise . It can be caused: It is good practice to periodically clean both the internal and external parts of the appliance. This guarantees its –...
  • Page 58 Disposal 10 DISPOSAL The manufacturer is registered on the National EEE Professional WEEE: all WEEE which comes from Register, in compliance with implementation of Directive something other than private households. 2012/19/EU and pertinent national regulations on This equipment may contain: electrical and electronic equipment waste.
  • Page 59 Disposal...
  • Page 60 COMFORT AND THE WELL-BEING OF PEOPLE AND THE ENVIRONMENT www.clivet.com sales and service HELLO CLIVET DEDICATED ASSISTANCE: HELLO CLIVET Clivet SPLIT Assistance (Italy only): Tel +041/5099169 Mon-Fri 09:00-20:00, Sat 09:00-12:00 (excluding public holidays) split@clivet.support CLIVET SPA Via Camp Lonc 25, Z.I. Villapaiera 32032 Feltre (BL) - Italy Tel.