Mitsubishi Electric PUHY-P250YHM-A Data Book
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Mitsubishi Electric PUHY-P250YHM-A Data Book

Mitsubishi Electric PUHY-P250YHM-A Data Book

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AIR CONDITIONERS
Model PUHY-P250YHM-A
PFD-P250VM-E
PFD-P500VM-E
DATA BOOK

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Summary of Contents for Mitsubishi Electric PUHY-P250YHM-A

  • Page 1 AIR CONDITIONERS Model PUHY-P250YHM-A PFD-P250VM-E PFD-P500VM-E DATA BOOK...

  • Page 3: Table Of Contents

    PUHY-P-YHM-A PFD-P-VM-E Close control CONTENTS 1. Specifications ······························································ ······························································ 1-1 Main Features 1-2 List of Possible Combinations of Indoor and Outdoor Units ····· 1-3 Unit Specifications ························································· 2. Capacity Curves ························································· ························································· 2-1 Cooling Capacity ························································· 2-2 Cooling Input ················································· 2-3 Part Load Performance 2-4 SHF Curves ·························································...

  • Page 5: Specifications

    MITSUBISHI ELECTRIC CORPORATION PAC-SC50KUA When using a PFD-P250VM-E as an indoor unit, connect an outdoor unit PUHY-P250YHM-A to each indoor unit and operate with a built-in remote control for the indoor unit. ✻1: Bold line indicates refrigerant piping (gas/liquid). This system consists of single refrigerant circuit.

  • Page 6: List Of Possible Combinations Of Indoor And Outdoor Units

    1-2. List of Possible Combinations of Indoor and Outdoor Units 10HP system 20HP system Model Name Indoor unit PFD-P250VM-E PFD-P500VM-E Outdoor unit PUHY-P250YHM-A PUHY-P250YHM-A x 2 Cooling Heating Cooling Heating System capacity 28.0 31.5 56.0 63.0 System Power input 18.6 18.2...

  • Page 7: Unit Specifications

    1-3. Unit Specifications (1) Outdoor Unit Model name PUHY-P250YHM-A (-BS) connected with PFD series Cooling Heating ✻ 1 Capacity 28.0 31.5 Power source 3N ~ 380/400/415V 50/60Hz Power input Current 11.4/10.9/10.5 11.1/10.5/10.2 Type ✕ Quantity Propeller fan x 1 Airflow rate...

  • Page 8: Capacity Curves

    2. Capacity Curves 2-1. Cooling Capacity Indoor unit inlet temperature (˚CWB) Outdoor unit inlet temperature (˚CDB) 2-2. Cooling Input Indoor unit inlet temperature (˚CWB) Outdoor unit inlet temperature (˚CDB) ✻ The correction curves indicate the values measured at the point where the compressor was operated at its maximum capacity.

  • Page 9: Part Load Performance

    2-3. Part Load Performance 10HP System Indoor Unit : PFD-P250VM-E Outdoor Unit : PUHY-P250YHM-A System Power input (kW) Outdoor unit inlet Cooling 100% temp. (˚CDB) Capacity (kW) Capacity Capacity Capacity Capacity Capacity Capacity Capacity 40 ˚C 26.6 10.05 8.75 7.68 6.79...

  • Page 10: Shf Curves

    2-4. SHF Curves Standard Capacity Ratio 130% 120%110%100% 90% Indoor Temperature 27˚CDB 0.93 RH (%) Standard Capacity Ratio 130% 120%110%100% 90% Indoor Temperature 24˚CDB RH (%) Operation Temparature Range : Indoor : 12˚CWB~24˚CWB Outdoor : -15˚CDB~43˚CDB (RH : 30~80%) Standard Point " "...
  • Page 11 Standard Capacity Ratio 120% 110% 100% 90% Indoor Temperature 22˚CDB RH (%) Standard Capacity Ratio 120% 110%100% 90% Indoor Temperature 20˚CDB RH (%) Operation Temparature Range: Indoor: 12˚CWB~24˚CWB Outdoor: -15˚CDB~43˚CDB (RH: 30~80%)

  • Page 12: Correction By Refrigerant Piping Length

    2-5. Correction by refrigerant piping length To obtain a decrease in cooling/heating capacity due to refrigerant piping extension, multiply by the capacity correction factor based on the refrigerant piping equivalent length in the table below. Piping equivalent length (m) • How to obtain piping equivalent length Equivalent length = (Actual piping length to the farthest indoor unit) + (0.50 ✕...

  • Page 13: Sound Levels

    3. Sound Levels 3-1. Noise Level (1) Outdoor Unit Measurement location Noise Level Series (dB [Type A]) PUHY-P250YHM-A (2) Indoor Unit Noise Level Series (dB [Type A]) PFD-P250VM-E Measurement location PFD-P500VM-E...

  • Page 14: Nc Curves

    3-2. NC Curves (External static PUHY-P250YHM-A pressure 0Pa) 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz dB(A) Standard 50/60Hz 59.0 62.0 60.0 54.0 50.5 46.0 41.0 35.0 57.0 58.0 53.5 44.0 39.0 36.5 32.5 31.0 24.5 NightMode 50/60Hz 44.0 When Night Mode is set,the A/C system's capacity is limited. The system could return to normal operation from ht Mode automaticall in the case that the operation condition is severe.

  • Page 15: Fan Characteristics Curves

    3-3. Fan Characteristics Curves PFD-P250VM-E : 50/60Hz, standard 1000 Output 3.7kW Fan rotation speed 1200rpm 1100rpm 1000rpm 900rpm 800rpm Internal resistance Air volume (m /min) 50Hz 60Hz Rotational Motor pulley Fan pulley V-belte Motor pulley Fan pulley V-belte speed (rpm) 1170 ø160-B-2-28 ø200-B-2-42...

  • Page 16: External Dimensions

    4. External Dimensions PUHY-P250YHM-A(-BS) Unit : mm...
  • Page 17 PFD-P250VM-E Unit : mm...
  • Page 18 PFD-P500VM-E Unit : mm...

  • Page 19: Electrical Wiring Diagrams

    5. Electrical Wiring Diagrams PUHY-P250YHM-A...
  • Page 20 PFD-P250VM-E...
  • Page 21 PFD-P500VM-E...

  • Page 22: Refrigerant Circuit Diagram And Thermal Sensor

    6. Refrigerant Circuit Diagram And Thermal Sensor Outdoor Unit : PUHY-P250YHM-A Indoor Unit : PFD-P250VM-E...
  • Page 23 Outdoor Unit : PUHY-P250YHM-A x 2 Indoor Unit : PFD-P500VM-E 21S4b 21S4a 63H1 63HS1 63LS SV1a COMP TH23-1 TH23-2 SV5b LEV1 LEV2a (HIC circuit) LEV2b 21S4b 21S4a TH22-1 TH22-2 63H1 63HS1 63LS SV1a COMP SV5b LEV1 LEV2a (HIC circuit) LEV2b...

  • Page 24: System Design

    7. System Design 7-1.Refrigerant Piping System ■ Sample connection <Refrigerant system with one outdoor unit> <Refrigerant system with two outdoor units> Outdoor unit Outdoor unit Indoor unit Indoor unit Allowable piping Farthest piping length(L) 165 m or less in actual length length Allowable height Height difference between indoor...

  • Page 25: Control Wiring

    7-2.Control Wiring Restrictions when the PFD-type indoor units are connected (related to the system) (1) The PFD-type indoor units cannot be connected to the ME remote controller. (2) The address settings must be made on this system. (3) The following functions cannot be selected on the PFD-type indoor units. 1) Switching between automatic power recovery Enabled/Disabled (Fixed to "Enabled"...

  • Page 26: Types Of Switch Settings And Setting Methods

    2 Remote control wiring ✻ MA remote controller Cable type VCTF · VCTFK · · · · · No. of cable 2-core cable Wiring specifications ✻ 0.3~1.25mm Diameter ✻ (0.75~1.25mm Total Length Maximum length: 200 m ✻ 1: “MA remote controller” includes MA remote controller, Simple MA controller, and wireless remote controller. ✻...
  • Page 27 (2) Power supply switch connector connection on the outdoor unit (Factory setting: The male power supply switch connector is connected to CN41.) Grouping the indoor Connection to Power supply unit System units connected to the system for transmission Power supply switch connector connection configuration different outdoor controller...

  • Page 28: Sample System Connection

    7-4.Sample System Connection (1) An example of a system to which an MA remote controller is connected 1 System connected to one outdoor unit Control Wiring Diagram Leave the male connector on CN41 as it is. ✻ One indoor controller (controller circuit board) is equipped in the indoor unit (10HP), and two indoor controllers (controller circuit boards) TB5-1...
  • Page 29 (1) An example of a system to which an MA remote controller is connected 2 System connected to two outdoor units Control Wiring Diagram Disconnect the male power supply connector from CN40 and connect it to CN41. ✻ One indoor controller (controller circuit board) is equipped in the indoor unit (10HP), and two indoor controllers (controller circuit boards) TB5-1...
  • Page 30 (1) An example of a system to which an MA remote controller is connected 3 System in which two MA remote controllers are connected to one indoor unit Control Wiring Diagram Leave the male connector on CN41 as it is. ✻...
  • Page 31 (1) An example of a system to which an MA remote controller is connected 4 System in which two indoor units are grouped with the MA remote controller Control Wiring Diagram Leave the male connector Leave the male connector on CN41 as it is. on CN41 as it is.
  • Page 32 (2) System with MA remote controller and G-50A 1 System with multiple indoor units (10HP, 20HP) Control Wiring Diagram ✻There is one indoor controller ✻There are two indoor controller board inside indoor unit. boards inside indoor unit. Use CN41 as is. Use CN41 as is.

  • Page 33: External Input/Output Specifications

    7-5.External input/output specifications (1) Input/output specifications Input Usage Signals Function Start/stop Turning · Pulse [Factory setting: Dip SW1-9 ON] ON/OFF (a-contact with voltage/without voltage) ✻1 the indoor unit <With voltage> Power Source: DC12~24V Electrical Current: Approximately 10mA (DC12V) <Standard Pulse> over 200ms over 200ms (Pulse powering time)
  • Page 34 (2) Wiring External input/output board Input with voltage TB23 External power source SW12 Stop/Start (*1) Short circuit plate Input without voltage TB21 CN53 Common SW11 Stop/Start (*1) Short circuit plate Relay Contact Point Output TB22 Power Source for Display No.1 Operation Status CN54 No.1 Error Status ✻...
  • Page 35 ● Caution on using the external input function (20HP only) Caution When using the external input function on the indoor unit that is connected to a two-refrigerant circuit, connect the short-circuit plate that is supplied with the unit to the appropriate terminals on the external input-output board. Without the short-circuit plate, the unit will not function properly.
  • Page 36 (3) Wiring Method 1 Check the indoor unit setting (Refer to 7-5.(2) Wiring ) 2 When using the external output function, connect each signal line to External output Terminal (TB22) on the unit, depending on the usage. 3 When using external input function, peal the outer layer of the signal line off, and connect it to external input terminal (TB21 or TB23) on the unit, depending on the usage.
  • Page 37 (4) Switch setting ● The suction/discharge temperature control of the indoor unit. Either suction temperature control or discharge temperature control can be selected . The suction/discharge temperature control can be switched by the switches (SWC) on the controller circuit board inside the controller of the indoor unit. The discharge temperature control is selected at factory shipment.

  • Page 38: System Rotation Control

    Figure 1 Sample 20HP system group 7-7.Notes on the use of optional accessories WARNING Only use optional parts recommended by Mitsubishi Electric. These parts should only be installed by a qualified technician. Improper installation may result in water leakage, electric shock, or fire.

  • Page 39: Air Conditioning The Computer Room

    8. Air Conditioning the Computer Room 8-1 Main Features of the Floor-Duct Air Conditioners This system is installed by building a floor over an existing floor and using the space between these two floors as an air-conditioning duct. This system has the following characteristics: 1 The temperature and humidity can efficiently and reliably be controlled, since the air-conditioned air is sent directly to the machine.

  • Page 40: Step-By-Step Plan For The Implementation Of The Air-Conditioning

    8-3 Step-by-Step Plan for the Implementation of the Air-Conditioning Purpose Making decisions on the computer system Basic Accommodates possible future expansion (ensuring the acquisition route) Conditions Operation schedule Back-up system (in case of breakdowns, power outage, water-supply cut offs etc.) Air conditioning methods (continuous, floor-duct type etc.) Securing Computer room, CVCF room, MT Disk Storage room...

  • Page 41: Conditions For The Installation Of Computer-Room Air Conditioners

    8-4 Conditions for the Installation of Computer-Room Air Conditioners (1) Outdoor Temperature and Humidity Generally the values set for general air conditioners are used, although the value higher than the maxi- mum outdoor temperature and humidity may be set for devices like computer-room air conditioners that must keep the air temperature and humidity under predetermined levels.

  • Page 42: Setting The Air Conditioners

    8-5 Setting the Air conditioners (1) Air-Conditioning Load 1 Once the floor plan is made and the conditions for the air-conditioning system are set, air conditioning capacity has to be determined by calculating the load. 2 Unlike the outdoor air, computer load remains constant throughout the year. However, it is possible that there are considerable fluctuations within a day.
  • Page 43 Indoor ˚CDB 24˚C / Indoor ˚CWB 17˚C outdoor ˚CDB 32˚C Capacity of the Moment 54.3kW SHF = 0.92 Capacity of Sensible Heat 54.3 ✕ 0.92 = 49.9/kW /min can be accommodated with PUHY-P250YHM-A ✕ 2 and PFD-P500VM-E. Standard Air-Flow Volume: 320m...

  • Page 44: Automatic Control Of The Computer Room

    8-6 Automatic Control of the Computer Room Example PFD-P500VM-E automatically controls the cooling temperature with a built-in controller. (suction temperature or discharge temperature control) This unit is designed for high sensible-heat specifications, and it does not include a humidifier or a dehumidi- fier.

  • Page 45: Maintenance/Inspection

    9. Maintenance/Inspection 9-1. Maintenance/Inspection Schedule Having the units inspected by a specialist on a regular basis, in addition to regular maintenance such as changing the filters, will allow the users to use them safely and in good condition for an extended period of time.
  • Page 46 (3) Details of Maintenance/Inspection Inspection Unit Parts Check points Assessment What to do Cycle . Check for unusual noise . Free of unusual noise Fan motor Replace when insulation . Measure the insulation . Insulation resistance over 1M resistance is under 1M resistance .
  • Page 48 DATA BOOK PUHY-P250YHM-A PFD-P250VM-E PFD-P500VM-E HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN Issued in June 2008 MEE07K622 New publication effective June 2008. Printed in Japan Specifications subject to change without notice.

This manual is also suitable for:

Pfd-p250vm-ePfd-p500vm-e

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