Mark MISTRAL MDX 56 Technical Manual
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Mark MISTRAL MDX 56 Technical Manual

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Summary of Contents for Mark MISTRAL MDX 56

  • Page 1 Technical manual...
  • Page 3 General Application Appliance type MISTRAL MDX 56 is solely suitable for the free and direct intake of the air to be heated and the free discharge of heated air into the room. If areas are to be heated in which corrosive vapours are present (chlorinated hydrocarbons in particular),...

  • Page 4: Technical Specifications

    Technical specifications Technical specifications Type MDX 56 Power Nominal capacity Absorbed power Nominal capacity 63,0 Absorbed power 19,21 Nominal capacity 51,6 Absorbed power 22,83 SCOP 3,65 Electrical data Power supply Ph/V/Hz 3/380-415/50 Maximum current Fuse Refrigerant features Refrigerant R410A Quantity refrigerant pre-load DC Inverter compressor no.

  • Page 5: Heating Capacities

    Heating capacities Outdoor air Indoor air temp. ºC DB temp. ≤ 16 ºC DB ºC WB -25.4 49.31 22.83 49.11 23.06 48.91 23.19 48.91 23.45 48.91 23.59 48.71 23.89 -19.8 51.60 22.83 51.40 23.08 51.20 23.34 51.20 23.47 51.20 23.61 51.00 23.73 -18.8...
  • Page 6 Unit Placement and Installation Acceptance and unpacking When units are delivered check whether any damage occurred during shipment. » If there is damage to the surface or outside of a unit, submit a written report to the shipping company. Check that the model, specifications and quantity of the units delivered are as »...
  • Page 7 Figure 3.1 Single unit installation Figure 3.2 Single row installation (unit: mm) (unit: mm) Figure 3.3 Multi-row installation (unit: mm) 3.2.3 Base structures Outdoor unit base structure design should take account of the following considerations: A solid base prevents excess vibration and noise. Outdoor unit bases should be »...

  • Page 8: Indoor Units

    Figure 3.4 Outdoor unit typical concrete base structure design (unit: mm) Expansion bolt spacings (mm) Figure 3.5 Expansion bolt positioning 1090 1340 Indoor units For placement of indoor units please see the technical manual of the indoor unit Mistral MDX.

  • Page 9: Ducting Requirements

    Outdoor Unit Ducting and Shielding Ducting Requirements Depending on the height of adjacent walls relative to the height of the units, ducting may be required to ensure proper air discharge. In the situation depicted in Figure 4.1, the vertical section of ducting should be at least H-h high. Figure 4.1 Top of unit below top of adjacent wall Design Considerations...
  • Page 10 Ducting 4.3.1 Option A - Transverse ducting Figure 4.2 Top of unit below top of adjacent wall Duct dimensions External static pressure Dimensions (mm) ESP (Pa) Remarks A > 300 Factory default B > 250 0 - 20 Remove steel mesh and connect to duct <...
  • Page 11 Duct dimensions External static pressure Dimensions (mm) ESP (Pa) Remarks A > 300 Factory default B > 250 0 - 20 Remove steel mesh and connect to duct < 3m long C < 3000 D > 1290 > 20 Customization option E = A + 1290 Ø...

  • Page 12: Refrigerant Piping Design

    Refrigerant Piping Design Design Considerations Refrigerant piping design should take account of the following considerations: The amount of brazing required should be kept to a minimum. » Material Specification Only seamless phosphorus-deoxidized copper piping that complies with all applicable legislation should be used. Temper grades and minimum thicknesses for different diameters of piping are specified in the tables below.
  • Page 13 5.3.1 Permitted refrigerant piping length and level difference requirements for connecting to one indoor unit The max height drop (m) The length of refrigerant pipe (m) The number Outdoor unit is Outdoor unit is of bends min (incl. level max (incl. level above below difference)

  • Page 14: Refrigerant Piping Installation

    Figure 5.1 Potential refrigerant leak scenario MISTRAL MDX MISTRAL MDX outdoor unit indoorunit Figure 5.2 Mechanical ventilator controlled by refrigerant leak detector OUTSIDE AIR AIR VENT LEAKAGE DETECTOR CONNECTED TO MECHANICAL VENTILATOR Refrigerant Piping Installation Procedure and Principles 6.1.1 Installation procedure Installation of the refrigerant piping system should proceed in the following order: Pipe Pipe brazing and...
  • Page 15 6.1.2 Three principles for refrigerant piping Reasons Measures Particles such as oxide produced Seal piping during storage » during brazing and/or building Flow nitrogen during brazing » CLEAN dust can lead to compressor Pipe flushing » malfunction Moisture can lead to ice formation Pipe flushing »...
  • Page 16 Insert the expanding head of the pipe expander into the pipe. After completing » pipe expansion, rotate the copper pipe a few degrees to rectify the straight line mark left by the expanding head. CAUTION! Ensure that the expanded section of piping is smooth and even. Remove »...
  • Page 17 surfaces of the flared opening to facilitate the connection and rotation of the flare nut, ensure firm connection between the sealing surface and the bearing surface, and avoid the pipe becoming deformed. 6.3.5 Bending piping Piping bending methods Hand bending is suitable for thin copper piping ( 6.
  • Page 18 expansion and shrinkage of the refrigerant piping. Piping should therefore not be fixed too tightly, otherwise stress concentrations may occur in the piping, with the potential for rupturing. Brazing Care must be taken to prevent oxide forming on the inside of copper piping during brazing.
  • Page 19 Figure 6.5 Flowing nitrogen from shorter side during brazing Piping orientation during brazing Brazing should be conducted downwards or horizontally to avoid filler leakage. Figure 6.6 Piping orientation during brazing Piping overlap during brazing The table below specifies the minimum permissible piping overlap and the range of permissible gap sizes for brazed joints on piping of different diameters.
  • Page 20 Filler Use a copper/phosphorus brazing alloy (BCuP) filler that does not require flux. » Do not use flux. Flux can cause corrosion of piping and can affect the performance » of compressor oil. Do not use anti-oxidants when brazing. Residue can clog piping and damage »...
  • Page 21 9. Once flushing is complete, seal all openings to prevent dust and moisture from entering. Figure 6.8 Pipe flushing using nitrogen liquid pipe gas pipe Outdoor unit Indoor unit A Gas tightness test 6.7.1 Purpose To prevent faults caused by refrigerant leakage, a gas tightness test should be performed before system commissioning.

  • Page 22: Leak Detection

    temperature difference. Adjusted reference pressure = Pressure at pressurization + (temperature at observation – temperature at pressurization) x 0.01MPa. Compare the observed pressure with the adjusted reference pressure. If they are the same, the piping has passed the gastightness test. If the observed pressure is lower than the adjusted reference pressure, the piping has a micro leakage.
  • Page 23 of copper piping or other internal components. The presence of ice particles in the system would cause abnormal operation, whilst particles of oxidized copper can cause compressor damage. The presence of non-condensable gases in the system would lead to pressure fluctuations and poor heat exchange performance. Vacuum drying also provides additional leak detection (in addition to the gas tightness test).

  • Page 24: Drain Piping

    After 1 hour, check the pressure gauge. If the pressure in the piping has not increased, » the procedure is finished. If the pressure has increased, check for leakages. After vacuum drying, keep the blue and red hoses connected to the pressure gauge »...
  • Page 25 Figure 7.2 Drain piping joints – correct and incorrect configurations Branch drain piping should join main drain piping from the top, as shown in Figure » 7.3. Recommended support/hanger spacing is 0.8 – 1.0m for horizontal piping and 1.5 – 2.0m for vertical piping. Each vertical section should be fitted with at least two supports.
  • Page 26 Figure 7.5 Drain piping water traps Selecting Piping Diameters Select branch drainage piping (the drain piping connection to each unit) diameters according to indoor unit flow volume and select main drainage piping diameters according to the combined flow volume of the upstream indoor units. Use a design assumption of 2 liters of condensate per horsepower per hour.
  • Page 27 considerations: A downward sloping section should immediately follow the vertically rising section » adjacent to the unit, otherwise a water pump error will occur. Refer to Figure 7.6. Air vents should not be installed on vertically rising sections of drain piping, »...

  • Page 28: Refrigerant Piping Insulation

    Slowly fill the drainage pan of each indoor unit with at least 600ml of water through » the inspection port and check that the water is discharged through the outlet of the drain piping. CAUTION! The drain plug in the drainage pan is for removing accumulated water prior to »...
  • Page 29 8.1.4 Installation of piping insulation With the exception of joint insulation, insulation should be applied to piping before fixing the piping in place. Insulation at joints in refrigerant piping should be applied after the gas tightness test has been completed. Installation of insulation should be carried out in a manner suited to the type of »...

  • Page 30: Charging Refrigerant

    Ducting Insulation Suitable insulation should be added to ducting in according with all applicable » legislation. Charging Refrigerant Calculating Additional Refrigerant Charge The additional refrigerant charge required depends on the lengths and diameters of the outdoor and indoor liquid pipes. The table below shows the additional refrigerant charge required per meter of equivalent pipe length for different diameters of pipe.
  • Page 31 Step 2 Place a tank of R410A refrigerant on a weighing scale. Turn the tank upside down » to ensure refrigerant is charged in a liquid state. (R410A is a blend of two different chemicals compounds. Charging gaseous R410A into the system could mean that the refrigerant charged is not of the correct composition).

  • Page 32: Electrical Wiring

    10 Electrical Wiring 10.1 General CAUTION! All installation and wiring must be carried out by competent and suitably qualified, » certified and accredited professionals and in accordance with all applicable legislation. Electrical systems should be grounded in accordance with all applicable legislation. »...

  • Page 33: Wiring Example

    Figure 10.4 Outdoor unit communication terminals Terminals Connection P Q E Connect between indoor unit and outdoor unit 10.4 Wiring example Figure 10.5 System power and communication wiring example For the electrical diagram of the indoor unit, please see the technical manual of the indoor unit Mistral MDX.

  • Page 34: Placement And Installation

    Installation in Areas of High Salinity 11.1 Caution Do not install outdoor units where they could be directly exposed to sea air. Corrosion, particularly on the condenser and evaporator fins, could cause product malfunction or inefficient performance. Outdoor units installed in seaside locations should be placed such as to avoid direct exposure to the sea air and additional anticorrosion treatment options should be selected, otherwise the service life of the outdoor units will be seriously affected.

  • Page 35: Pre-Commissioning Checks

    repaired immediately. The units should be regularly cleaned using (non-salty) water to remove any salt » that has accumulated. Areas cleaned should include the condenser, the refrigerant piping system, the outside surface of the unit casing and the outside surface of the electric control box.
  • Page 36 12.2 PCB Switches and Switch Settings 12.2.1 Outdoor unit main PCB switch settings Switch Factory setting Switch Setting Description positions MDX 56 External Static Pressure is 0Pa (default) External Static Pressure is 20Pa (customize) External Static Pressure is 40Pa (customize) Static pressure External Static Pressure is 60Pa (customize) External Static Pressure is 80Pa (customize)
  • Page 37 Reserved Reserved S8-1 S8-2 Start-up time S6-3 mode Start-up time is 7 minutes Manual addressing Start-up time is 12 minutes (default) S8-2 Start-up time S8-3 Reserved Reserved Reserved Reserved S8-1 Start-up time is 7 minutes Reserved Reserved Reserved Reserved Start-up time is 12 minutes (default) S8-3 Reserved Reserved...
  • Page 38 12.3 Modes Set on Main PCB 12.3.1 Priority mode setting Priority mode can only be set on the master unit. When an indoor unit is in mode conflict with the outdoor units the unit displays the mode conflict error. The digital display on indoor main PCB will display error code E0.
  • Page 39 b. During cooling operation: If an indoor unit requests heating, the outdoor units ignore the request and continue to run in cooling mode. The indoor unit requesting heating displays the mode conflict error. If all the indoor units requesting cooling are later turned off and one or more indoor units are still HCYUM (4006, 4506, 5006, 5606, 6156, 6706, 7306, 7856, 8506, 9006) XRV- I requesting heating, the outdoor unit restarts in heating mode after 5 minutes and any indoor units requesting heating then start in heating mode.
  • Page 40 oling mode; indoor units in fan only mode operate in fan only mode. Indoor units requesting heating display mode conflict error. 12.3.2.2 Silent mode setting nt time setting In silent mode 1 / 2 / 3 and night silent mode, the outdoor fan speed decreases gradually. Night silent time setting In super silent mode 1 / 2 / 3 / 4, not only the fan speed decreases gradually, but also nt mode is activated X hours after the peak daytime temperature, and is deactivated after Y hours, where X and Y...
  • Page 41 12.4 Commissioning Trial Runs 12.4.1 Commissioning test run of single refrigerant system Once all the pre-commissioning checks in 12.1 “Pre-commissioning Checks” have been completed, a test run should be performed as described below. Note: When running the system for commissioning test runs, if the combination ratio is 100% or less, run all the indoor units and if the combination ratio is more than 100%, run indoor units with total capacity equal to the capacity of the outdoor unit.

  • Page 42: Error Code Table

    13 Error Code Table Error Remarks Manual Content code restart Phase sequence error Displayed on the unit with the error Communication error between indoor and Displayed on the unit with the error outdoor units Outdoor heat exchanger temperature sensor (T3) Displayed on the unit with the error error or outdoor ambient temperature sensor (T4) error...
  • Page 43 lnverter module protection Displayed on the unit with the error DC bus low voltage protection Displayed on the unit with the error DC bus high voltage protection Displayed on the unit with the error MCE error Displayed on the unit with the error Zero speed protection Displayed on the unit with the error Phase sequence error...
  • Page 44 FAX +31 (0)598 624584 TELEFAX +49 (0)2822 97728-10 info@mark.nl info@mark.de www.mark.nl www.mark.de MARK EIRE BV MARK POLSKA Sp. z o.o COOLEA, MACROOM UL. JASNOGÓRSKA 27 CO. CORK 42-202 CZĘSTOCHOWA (POLSKA) P12 W660 (IRELAND) PHONE +48 34 3683443 PHONE +353 (0)26 45334...

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