Midea MDV-D252W/CS Installation Manual

Midea MDV-D252W/CS Installation Manual

Digital scroll central air conditioner outdoor unit

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MDV[D] Series
Digital Scroll Central Air Conditioner Outdoor Unit
INSTALLATION MANUAL
MDV-D252W/CS
Model:
MDV-D280W/CS
MDV-D335W/CS
MDV-D400W/CS
MDV-D450W/CS

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Summary of Contents for Midea MDV-D252W/CS

  • Page 1: Installation Manual

    MDV[D] Series Digital Scroll Central Air Conditioner Outdoor Unit INSTALLATION MANUAL MDV-D252W/CS Model: MDV-D280W/CS MDV-D335W/CS MDV-D400W/CS MDV-D450W/CS...
  • Page 2 PRECAUTIONS INSTALLATION LOCATION 1. This installation manual is for the outdoor unit. CAUTION 2. Refer to the indoor unit installation manual for indoor parts installation. 1. Please keep away from the following place, or 3. Please read the power source unit installation manual to malfunction of the machine may be caused: install the power source unit .
  • Page 3 INSTALLATION SPACE 5. If through the front, please remove the clapboard at corresponding place first. 1. Leave enough space for maintenance (see following picture) and install power unit on the side of outdoor unit. Refer to power unit installation manual. CAUTION 2.
  • Page 4 <Module installation chart> Three modules Single module 32HP capacity 48HP Liquid pipe 25.0 Liquid pipe 12.7( 15.9) 19.0( Gas pipe 28.6( 38.0) 38.0( 45.0) Gas pipe 54.0 NOTE: Pipe size of model 8HP, 10HP and 12HP: NOTE: The size of Y-shaped pipes A and B on liquid liquid side 12.7, gas side 28.6.
  • Page 5 Pipe size and connection of outdoor unit Indoor Unit Liquid side Model Gas side Max Piping Equivalent Length L 125m 28.6(welding) MDV-D252W/CS 12.7(flaring nut) (From the first branch) Max piping Equivalent Length l 40m 28.6(welding) MDV-D280W/CS 12.7(flaring nut) MDV-D335W/CS 28.6(welding) 12.7(flaring nut)
  • Page 7 QUERY DESCRIPTION (Chart 2) Function description Discharge temp detecting point, No.2 fixed compressor SW4 query instructions: Discharge temp detecting point, No.1 fixed compressor Display content Note Discharge temp detecting point, digital compressor Phase detecting point Normal display Normal display ADDR of outdoor unit C-phase power supply Cap.
  • Page 8 Brown Red White Blue Black White Blue Yellow/green...
  • Page 9 5, the diameter is the same as that of main wire (a); Model Size Size wire if more than6, there will be 2 electric control boxes, and the MDV-D252W/CS diameter of wiring depends on the total horsepower of 380V 3N~ 25 (46) 100mA...
  • Page 10 Indoor power supply <20m <50m <20m <50m Total Hp Total Hp Single-phase 220V~ 50Hz Leakage protector Manual switch Branch box Indoor unit CAUTION 1. Set refrigerant piping system, signal wires between indoor-indoor unit, and that between outdoor-outdoor unit into one system. 2.
  • Page 11 Leakage detector alarming device FILL THE NAME OF CONNECTED SYSTEM related to mechanical ventilator To clearly identify the connected systems between two or more indoor units and outdoor unit, select Indoor unit names for every system and record them on the nameplate on the outdoor electric control box cover.

Table of Contents