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Mitsubishi Electric PUHY-P-YJM-A Data Book
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Mitsubishi Electric PUHY-P-YJM-A Data Book

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AIR CONDITIONING SYSTEMS
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PUHY-P-Y(S)JM-A
PFAV-P-VM-E(-F)
DATA BOOK

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Summary of Contents for Mitsubishi Electric PUHY-P-YJM-A

  • Page 1 AIR CONDITIONING SYSTEMS MODEL PUHY-P-Y(S)JM-A PFAV-P-VM-E(-F) DATA BOOK...

  • Page 3: Table Of Contents

    Contents ! . General Cautions % ! . System Design 1. Indoor Unit Line-up·········································1 1. Outdoor Installation······································59 2. Temperature range ·········································2 (1) Requirement on installation site 3. Notes on selecting equipments·····················3 (2) Spacing (1) Notes on using the Fresh Air Intake type units (3) Piping direction (4) Weather countermeasure ! ! .

  • Page 4: General Cautions

    ! . General Cautions 1. Indoor Unit Line-up Model type Standard type Model size P250 P500 P750 Nominal HP 10HP 20HP 30HP Nominal cooling cap. *1 25.0 50.0 71.0 Nominal heating cap. *2 28.0 56.0 80.0 Floor standing PFAV-P-VM-E Connectable outdoor unit type PUHY-P250YJM-A PUHY-P500YSJM-A PUHY-P750YSJM-A...

  • Page 5: Temperature Range

    2. Temperature range Standard type Cooling Heating Wet-bulb temperature Dry-bulb temperature Indoor temperature 10~25˚C [50~77˚F] (Note 1) 15~28˚C [59~82˚F] Dry-bulb temperature Wet-bulb temperature Outdoor temperature -5~43˚C [23~109˚F] -20~15.5˚C [-4~60˚F] Note 1. If units are operated for a long time at the dew point temperature of 23˚C [73˚F] or more, condensate may collect and drip from the indoor units.

  • Page 6: Notes On Selecting Equipments

    3. Notes on selecting equipments (1) Notes on using the Fresh Air Intake type units 1Fresh air intake type indoor units supply pretreated outside air into the room. This type of units are not designed to handle internal thermal load. Use other types of air conditioning units (e.g., CITY MULTI system) that are capable of handling internal thermal load in combination with the Fresh Air Intake type units.
  • Page 7 4Fan control The unit may be forced to operate in the heating mode to prevent cold draft when the return air temperature (outside air temperature sensor reading) reaches 5˚C[41˚F] or below. At the time of factory shipment, fan setting is made so that the fan will stop during the defrost cycle and when there is a problem with the entire refrigerant systems.

  • Page 8: Indoor Unit

    ! ! . Indoor Unit 1. Specifications (1) Standard type Indoor PFAV-P250VM-E PFAV-P500VM-E PFAV-P750VM-E PUHY-P250YJM-A PUHY-P750YSJM-A PUHY-P500YSJM-A Model Name (PUHY-P350YJM-A + (PUHY-P250YJM-A x 2, Outdoor CMY-Y100VBK2) PUHY-P400YJM-A, CMY-Y200VBK2) Cooling 25.0 (Maximum28.0) 50.0 (Maximum56.0) 71.0 (Maximum 80.0) System capacity 28.0 (Maximum 31.5) 56.0 (Maximum 63.0) 80.0 (Maximum 90.0) Heating...
  • Page 9 (2) Fresh air intake type Indoor PFAV-P300VM-E-F PFAV-P600VM-E-F PFAV-P900VM-E-F PUHY-P250YJM-A PUHY-P750YSJM-A PUHY-P500YSJM-A Model Name (PUHY-P250YJM-A x 2, (PUHY-P350YJM-A + Outdoor PUHY-P400YJM-A, CMY-Y100VBK2) CMY-Y200VBK2) Cooling 28.0 (Maximum 33.5) 56.0 (Maximum 67.0) 80.0 (Maximum 100.0) System capacity 26.5 (Maximum 28.0) 50.0 (Maximum 56.0) 71.0 (Maximum 80.0) Heating 6.73 / 6.72...

  • Page 10: External Dimensions

    2. External dimensions (1) Standard type Unit:mm •PFAV-P250VM-E...
  • Page 11 •PFAV-P500VM-E Unit:mm...
  • Page 12 •PFAV-P750VM-E Unit:mm...
  • Page 13 (2) Fresh air intake type •PFAV-P300VM-E-F Unit:mm...
  • Page 14 •PFAV-P600VM-E-F Unit:mm...
  • Page 15 •PFAV-P900VM-E-F Unit:mm...

  • Page 16: Center Of Gravity

    3. Center of gravity •PFAV-P250,P500 (P300-F, P600-F) Unit:mm Model PFAV-P250VM-E 1234 PFAV-P500VM-E 1450 1144 PFAV-P300VM-E-F 1234 PFAV-P600VM-E-F 1450 1113 •PFAV-P750 (P900-F) 1774 Unit:mm Model PFAV-P750VM-E 1020 PFAV-P900VM-E-F...

  • Page 17: Electrical Wiring Diagram

    4. Electrical wiring diagram (1) Standard type •PFAV-P250, 500VM-E...
  • Page 18 •PFAV-P750VM-E...
  • Page 19 (2) Fresh air intake type •PFAV-P300, 600VM-E-F...
  • Page 20 •PFAV-P900VM-E-F...

  • Page 21: Sound Pressure Levels

    5. Sound Pressure Levels (1) Standard type •PFAV-P250VM-E Power sorce : 3N 380/400/415V 50/60Hz Measurement location 50Hz, 60Hz NC Curve NC-70 NC-60 NC-50 NC-40 NC-30 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz dB(A) 50Hz 46.5 45.5 NC-20 ·Approximate minimum 60Hz 58.5 47.5...
  • Page 22 •PFAV-P750VM-E Power sorce : 3N 380/400/415V 50/60Hz Measurement location 50Hz/60Hz NC Curve NC-70 NC-60 NC-50 NC-40 NC-30 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz dB(A) 72.5 63.5 62.5 62.5 44.5 50Hz NC-20 ·Approximate minimum 60Hz 72.5 63.5 62.5 62.5 44.5 audible limit on continuous noise.
  • Page 23 •PFAV-P600VM-E-F Power sorce : 3N 380/400/415V 50/60Hz Measurement location 50Hz, 60Hz NC Curve NC-70 NC-60 NC-50 NC-40 NC-30 63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz dB(A) 50Hz 60.5 45.5 34.5 27.5 NC-20 ·Approximate minimum 60Hz 69.5 61.5 54.5 46.5 34.5 audible limit on continuous noise.

  • Page 24: Vibration Levels

    6. Vibration levels •PFAV indoor unit PFAV Unit Measurement Concrete location 20cm Model Vibration Levels [dBA] PFAV-P250,500,750VM-E 40 or less PFAV-P300,600,900VM-E-F...

  • Page 25: Fan Characteristic Curves

    7. Fan characteristic curves (1) Standard type •PFAV-P250VM-E 50Hz ······Standard 2.2kW Internal resistance Airflow rate < m / min > 60Hz ······Standard 2.2kW Internal resistance Airflow rate < m / min >...
  • Page 26 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Pitch diameter Nominal (Fan motor) <mm / in> Bore (E) <ø> Bore (E) <ø> (Changeability) <PCø> diameter (B) <ø> 2.2kW 140.2 1423 / 56 5.0A Motor 2.2kW,1450rpm <50Hz>...
  • Page 27 Variable-width pulley PC ø table Number of Pulley distance PC ø of variable-width turns to apply (mm) pulleys for 2.2kW motor Pulley 150.0 (0.4) 148.8 (0.8) 147.5 (1.1) 146.3 (1.5) 145.1 1·1/4 (1.9) 143.9 1·1/2 (2.3) 142.6 1·3/4 (2.6) 141.4 (3.0) 140.2 2·1/4...
  • Page 28 •PFAV-P500VM-E 50Hz ······Standard 5.5KW Internal resistance Airflow rate < m / min > 60Hz ······Standard 5.5KW Internal resistance Airflow rate < m / min >...
  • Page 29 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Nominal Nominal (Fan motor) <mm / in> Bore (E) <ø> Bore (E) <ø> diameter (B) <ø> diameter (B) <ø> 5.5kW 1042 / 41 Motor 5.5kW,1450rpm <50Hz>...
  • Page 30 Shape of the pulley (unit:mm) 12.5 (keyway) 12.5 Rz 6.3 Rz 6.3 Rz 6.3 Rz 3.2 :Pulley nominal diameter 34˚ Belt 161 < d 36˚ 201 < d 38˚ 16.5 40˚ H (outer center) * See p.40 for "How to choose the pulley."...
  • Page 31 •PFAV-P750VM-E 50Hz ······Standard 1100 1000 7.5kW Internal resistance Airflow rate < m / min > 60Hz ······Standard 1100 1000 7.5kW Internal resistance Airflow rate < m / min >...
  • Page 32 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Nominal Nominal (Fan motor) <mm / in> Bore (E) <ø> Bore (E) <ø> diameter (B) <ø> diameter (B) <ø> 7.5kW 1347 / 53 Motor 7.5kW,1450rpm <50Hz>...
  • Page 33 Shape of the pulley (unit:mm) 12.5 (keyway) 12.5 Rz 6.3 Rz 6.3 Rz 6.3 Rz 3.2 :Pulley nominal diameter 34˚ Belt 161 < d 36˚ 201 < d 38˚ 16.5 40˚ H (outer center) * See p.40 for "How to choose the pulley."...
  • Page 34 (2) Fresh air intake type •PFAV-P300VM-E-F 50Hz ······Standard 1.5kW Internal resistance Airflow rate < m / min > 60Hz ······Standard 1.5kW Internal resistance Airflow rate < m / min >...
  • Page 35 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Pitch diameter Nominal (Fan motor) <mm / in> Bore <ø> Bore (E) <ø> (Changeability) <PCø> diameter (B) <ø> 1.5kW 1499 / 59 3.6A Motor 1.5kW,1450rpm <50Hz>...
  • Page 36 Variable-width pulley PC ø table Number of Pulley distance PC ø of variable-width turns to apply (mm) pulleys for 2.2kW motor Pulley 140.0 (0.4) 138.8 (0.8) 137.5 (1.1) 136.3 (1.5) 135.1 1·1/4 (1.9) 133.9 1·1/2 (2.3) 132.6 1·3/4 (2.6) 131.4 (3.0) 130.2 2·1/4...
  • Page 37 •PFAV-P600VM-E-F 50Hz ······Standard 2.2KW Internal resistance Airflow rate < m / min > 60Hz ······Standard 2.2KW Internal resistance Airflow rate < m / min >...
  • Page 38 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Nominal Nominal (Fan motor) <mm / in> Bore (E) <ø> Bore (E) <ø> diameter (B) <ø> diameter (B) <ø> 2.2kW 1194 / 47 5.0A Motor 2.2kW,1450rpm <50Hz>...
  • Page 39 Shape of the pulley (unit:mm) (keyway) Rz 6.3 Rz 6.3 Rz 12.5 Rz 3.2 :Pulley nominal diameter 34˚ Belt 161 < d 36˚ 12.5 12.5 201 < d 38˚ 16.5 40˚ H (outer center) * See p.40 for "How to choose the pulley."...
  • Page 40 •PFAV-P900VM-E-F 50Hz 60Hz ······Standard ······Standard 1000 1000 3.7kW 3.7kW Internal Internal resistance resistance Airflow rate < m / min > Airflow rate < m / min >...
  • Page 41 Specification(Pulley , Belt ) Standard(Factory set) <50Hz> Motor pulley Fan pulley Over current relay V-belt (H) Motor Nominal Nominal (Fan motor) <mm / in> Bore (E) <ø> Bore (E) <ø> diameter (B) <ø> diameter (B) <ø> 3.7kW 1423 / 56 7.5A Motor 3.7kW,1450rpm <50Hz>...
  • Page 42 Shape of the pulley (unit:mm) 12.5 (keyway) 12.5 Rz 6.3 Rz 6.3 Rz 6.3 Rz 3.2 :Pulley nominal diameter 34˚ Belt 161 < d 36˚ 201 < d 38˚ 16.5 40˚ H (outer center) * See p.40 for "How to choose the pulley."...
  • Page 43 1347 / 53 35.5 Note1. Use two V-belts for P750 indoor unit. Note 1. When replacing the motor on site, reset the thermal relay accordingly. Note 2. Mitsubishi Electric shall not be held responsible for the pulley or motor modified on site.

  • Page 44: Optional Parts

    8. Optional parts (1) Plenum chamber PAC -CC83PL-E For P250 indoor unit 1200 10- 3 Holes Branch duct hole (Knockout) Air outlet PAC -CC85PL-E For P500 indoor unit 1420 10- 3 Holes Branch duct hole (Knockout) Side air outlet Air outlet PAC -CC87PL-E For P750 indoor unit 1750...

  • Page 45: Outdoor Unit

    ! ! ! . Outdoor Unit 1. Specifications Model PUHY-P250YJM-A(-BS) PUHY-P500YSJM-A(-BS) PUHY-P750YSJM-A(-BS) Power source 3-phase 4-wire 380-400-415V 50/60Hz 3-phase 4-wire 380-400-415V 50/60Hz 3-phase 4-wire 380-400-415V 50/60Hz Sound pressure level (measured in anechoic room) dB <A> 63.5 Power pressure level (measured in anechoic room) dB <A>...

  • Page 46: External Dimensions

    2. External dimensions •PUHY-P250YJM-A(-BS) Unit:mm...
  • Page 47 •PUHY-P350,400YJM-A(-BS) Unit:mm...
  • Page 48 •PUHY-P500YSJM-A(-BS) Unit:mm...
  • Page 49 •PUHY-P750YSJM-A(-BS) Unit:mm...

  • Page 50: Center Of Gravity

    3. Center of gravity • PUHY-P250YJM-A(-BS) Unit:mm Model PUHY-P250YJM-A (-BS) • PUHY-P350, P400YJM-A(-BS) 1220 Unit:mm Model PUHY-P350YJM-A (-BS) PUHY-P400YJM-A (-BS) 1060...

  • Page 51: Electrical Wiring Diagram

    4. Electrical wiring diagram •PUHY-P250, 350, 400YJM-A(-BS)

  • Page 52: Sound Pressure Levels

    5. Sound Pressure Levels •PUHY-P250YJM-A(-BS) Measurement location Stand 50/60Hz 50/60Hz NC-70 NC-60 NC-50 NC-40 NC-30 Approximate minimum dB(A) audible limit on NC-20 Standard 50/60Hz 60.0 63.0 61.0 55.0 52.0 47.5 42.5 36.5 58.0 continuous noise Low noise mode 50/60Hz 58.0 54.0 44.0 39.5 37.0 33.0 31.5 25.0 44.0...
  • Page 53 •PUHY-P750YSJM-A(-BS) Measurement location Stand 50/60Hz 50/60Hz NC-70 NC-60 NC-50 NC-40 NC-30 Approximate minimum audible limit on dB(A) NC-20 continuous noise Standard 50/60Hz 75.5 68.5 65.0 60.5 57.0 54.0 50.5 44.0 63.5 Low noise mode 50/60Hz 56.0 57.0 52.0 48.0 48.0 49.0 47.0 43.5 55.0...

  • Page 54: Optional Parts

    6. Optional parts (1) Outdoor twinning kit For PUHY-P-YSJM, following optional Outdoor Twinning Kit is needed to use to combine to refrigerant flows of its PUHY-P-YJM. Details of selecting the proper kit should be referred to the VII.Piping Design. CMY-Y100VBK2 For Gas pipe: For Liquid pipe: <Deformed pipe(Accessory)>...

  • Page 55: Capacity Tables

    ! %. Capacity Tables (1) Correction by temperature 1Cooling • P250 • P500 • Cooling capacity • Cooling capacity • Cooling input • Cooling input • P750 • Fresh air intake type • Cooling capacity • Cooling capacity • Cooling input •...
  • Page 56 2Heating • P250 • P500 • Heating capacity • Heating capacity • Heating input • Heating input • P750 • Fresh air intake type • Heating capacity • Heating capacity • Heating input • Heating input...

  • Page 57: Correction At Frost And Defrost

    (2) Correction at frost and defrost Due to frost at the outdoor heat exchanger and the automatic defrost operation, the heating capacity of the outdoor unit can be calculated by multiplying the correction factor shown in the table below. Table of correction factor at frost and defrost Outdoor inlet air temp.

  • Page 58: (Cooling) (Heating)

    (4) Correction by indoor unit airflow rate • P250 • P500 • Cooling • Cooling 1.10 1.10 1.00 1.00 0.90 0.90 Airflow rate (m /min) Airflow rate (m /min) • Heating • Heating 1.10 1.10 1.00 1.00 0.90 0.90 Airflow rate (m /min) Airflow rate (m /min)

  • Page 59: Input Correction By Capacity

    (5) Input correction by capacity • P250 • P300-E-F • Cooling • Cooling 1.00 1.00 0.90 0.90 0.80 0.80 0.70 0.70 0.60 0.60 0.50 0.50 0.40 0.40 100% 100% Ratio of cooling capacity (*1) Ratio of cooling capacity (*1) • Heating •...

  • Page 60: Bypass Factor

    (6) Bypass factor • P250 • P750 0.40 0.40 0.30 0.30 0.20 0.20 0.10 0.10 0.00 0.00 Airflow rate (m /min) Airflow rate (m /min) • P500 • P300-E-F 0.50 0.30 0.40 0.20 0.30 0.20 0.10 0.10 0.00 0.00 Airflow rate (m /min) Airflow rate (m /min)

  • Page 61: Controller

    %. Controller 1. Local remote controller (1) MA Remote controller PAR-21MAA : built-in the indoor unit. Functions :Each unit :Each group :Each block :Each floor :Collective :Not available Description Operations Display Item ON/OFF Run and stop operation for a single group TIME SUN MON TUE WED THU FRI SAT TIMER Switches between Cool / Fan / Heat.

  • Page 62: System Design

    % ! . System Design 1. Outdoor Installation (1) Requirement on installation site 1 No direct thermal radiation to the unit; 2 No possibility of annoying the neighbors by the sound of the unit; 3 Avoid the sites where strong winds blow. 4 With strength to bear the weight of the unit;...
  • Page 63 (2) Spacing • PUHY-P250YJM-A(-BS) Unit : mm...
  • Page 64 • PUHY-P350, 400YJM-A(-BS) Unit : mm...
  • Page 65 (3) Piping direction 1 1 Lifting method When lifting the unit with ropes, run the ropes under the unit and use the lifting hole. Support the unit at four points with two ropes, and avoid giving mechanical shock. Suspension rope angle must be 40û or less, so as to avoid compressing fan guard. Use two ropes, each at least 8m [26 ft.] in length Use ropes strong enough to support the weight of the unit.
  • Page 66 2 2 IInstallation <Outdoor Unit> When the pipes and/or cables are routed at the bottom of the unit, make sure that the through hole at the base of the unit does not get blocked with the installation base. When the pipes are routed at the bottom of the unit, the base should be at least 100 mm [3-15/16 in.] in height. ·...
  • Page 67 4 4 Installation ¥ Secure the unit with anchor bolts as shown in the figure below so that the unit will not topple over with strong wind or during an earthquake. ¥ Install the unit on a durable base made of such materials as concrete or angle steel. ¥...
  • Page 68 6 6 Twinning on the outdoor unit side • The tilt angle of the twinning pipe The tilt angle of the twinning pipe must be within ±15 ° with the horizontal plane. Tilting the twinning pipe more than specified will cause damage to the unit. •...
  • Page 69 7 7 Twinning on the outdoor unit side See the following drawing for connecting the pipes between the outdoor units. <PUHY-P500YSJM-A> Field piping Twinning kit Field piping CAUTION The length of the straight pipe must be 500mm [19 in.] or longer. If not, it may cause improper operation.
  • Page 70 (4) Weather countermeasure In cold and/or snowy areas, sufficient countermeasures to wind and snow damages should be taken for operating unit in normal and good condition in winter time. Surround the units with snow nets or fences to protect them from snow. Even in the other areas, full consideration is required for installation of unit in order to prevent abnormal operations caused by wind or snow.
  • Page 71 Countermeasure to wind Referring to the figure shown below, take appropriate measures which will suit the actual situation of the place for installation. A unit installed alone is vulnerable to strong winds. Select the installation site carefully to minimize the effect of winds.

  • Page 72: Indoor Installation

    2. Indoor Installation (1) Requirement on installation site 1 In the way that the supply air is evenly distributed throughout the room, 2 In a place where the intruding air does not affect the unit's performance, 3 In a place where the flow of supply or return air is not obstructed, 4 In a place where airborne flammable oil droplets or steam are not present, 5 In a place where the risk of flammable gas leakage, migration, and/or accumulation is absent, 6 In a place where no high-frequency emitting devices are used,...
  • Page 73 (2) Spacing • PFAV-P250,500VM-E (Unit mm) Optional plenum chamber P250: 800 or more P500: 1000 or more (Front space) Through hole for the remote controller Refrigerant pipes wiring to outdoor unit Drain pipe Power cable hole (380V or more) Wire hole for the device power supply P250: 500 or more 50 or more...
  • Page 74 • PFAV-P750VM-E (Unit mm) • PFAV-P900VM-E-F 1000 or more A (Front space) B Remote controller cable hole (to outdoor unit) Power cable Refrigerant pipe hole (380V (liquid) ormore) 750 or more 500 or more 400 or more Wood base • Select a solid surface, and install the unit on a wood base at least 8.5 cm in thickness to allow for proper discharge of drain water and to prevent vibration from the air conditioning units from being transmitted to the floor.
  • Page 75 (3) Installing the Indoor Unit WARNING Install the unit on a level surface. • If the unit is installed on an incline, water leakage or malfunctions may result. Check for straightness with a level. WARNING Do not stand on the unit. •...
  • Page 76 Notes on when an optional plenum chamber is installed The unit described in this manual is designed to be used with a duct. When an Optional plenum chamber is used, an adjustment of the pulley is required. • Refer to the manual that came with the plenum chamber for how to install it. Notes on how to remove the top front panel on the unit (P250, P500, P300-F,P600-F models) Before removing the top front panel (panel with a built-in remote controller) to adjust or replace the pulley or belt, or to install optional parts, remote controller cables need to be disconnected.
  • Page 77 Important notes on pulleys and pulley belts • Adjusting the variable-width pulley Adjust the PC ø of variable-width pulley according to the procedures described below. 1) Loosen the setscrew holding the fixed and the sliding discs in place. 2) Turn the sliding disc counter-clockwise until no gap is left (0 mm) between the fixed and the sliding discs.
  • Page 78 • Horizontal pulley alignment and proper belt tension 1) The fan pulley and the motor pulley must be aligned to meet the criteria shown in Figure 1 and Table 1. 2) Set the tension for the V-belt so that the deflection force falls within the range as shown in the table in! !- 3) After the belt has been broken in on the pulley (after 24 to 28 hours of operation), check the belt for looseness and adjust the belt tension as specified in step (2) above as necessary.
  • Page 79 Separating the indoor unit to allow for easy transportation Instructions for separating the indoor unit into parts P500, P600-F The indoor unit can be separated into the base block, fan block, and other parts. Place the unit on a level surface before separating the unit. Base block net weight The dimension of the base block after it is separated from the other parts is Net weight...
  • Page 80 • Instructions for separating the P750, P900-F indoor unit into parts The heat exchanger block can be separated from the main body of indoor unit (Brazing is required). Place the unit on a level surface before separating the unit. indicates the surface to split up. The dimensions of the base block after being separated from the heat exchanger block are marked with ✻...
  • Page 81 f. Remove supporting plates on both sides of the drain pan B This is the separation process. Use caution not to damage or scratch the unit during transportation. Take extra precautions when transporting the heat exchanger to prevent damaging its fin or heat transfer tube from shock.
  • Page 82 (5) Internal diagram • PFAV-P250VM-E • PFAV-P300VM-E-F Outlet Material: Material: Hot-dip galvanized steel sheet Hot-dip galvanized steel sheet Siroccofan Rear panel Material: Front panel (Upper) Hot-dip galvanized Material: steel sheet Alloyed hot-dip galvanized steel sheet Pulley Materials: Gray cast iron Fan motor Material: Hot-rolled mild...
  • Page 83 • PFAV-P750VM-E • PFAV-P900VM-E-F Front panel (upper) Fan motor Material: Pulley Heat exchanger Material: Alloyed hot-dip Material: Material: Hot-dip galvanized Material: galvanized steel Hot-rolled mild steel Gray cast iron steel sheet Coil phosphorus deoxidized sheet sheet copper Scroll dumper Fins aluminum Air filter Material: PP Honeycomb...

  • Page 84: Piping Design

    The maximum operation pressure of R410A air conditioner is 4.30 MPa [623psi]. The refrigerant piping should ensure the safety under the maximum operation pressure. MITSUBISHI ELECTRIC recommends pipe size as Table 1-1, or You shall follow the local industrial standard. Pipes of radical thickness 0.7mm or less shall not be used.

  • Page 85: Piping Design

    2. Piping Design (1) PUHY-P250 Piping Note1. If the A/C system is designed to use cooling mode under outdoor temperature 0˚C, H’<=15m. Note2. As bents cause pressure loss on transportation of refrigerant, fewer bents design is better; Piping length needs to consider the actual length and equivalent length which bents are counted. Equivalent piping length (m)=Actual piping length+"M"...
  • Page 86 (2) PUHY-P500, 750 Piping Note1. If the A/C system is designed to use cooling mode under outdoor temperature 0˚C, H’<=15m. Note2. As bents cause pressure loss on transportation of refrigerant, fewer bents design is better; Piping length needs to consider the actual length and equivalent length which bents are counted. Equivalent piping length (m)=Actual piping length+"M"...
  • Page 87 (3) PUHY-P-Y(S)JM's refrigerant charging calculation Sample connection (with PFAV-P600VM-E-F) Note1. If the A/C system is designed to use Cooling-mode under Outside temperature 0˚C, H’<=15m. Note2. As bents cause pressure loss on transportation of refrigerant, fewer bents design is better; Piping length needs to consider the actual length and equivalent length which bents are counted. Equivalent piping length (m)=Actual piping length+"M"...

  • Page 88: Wiring Design

    Over-current protector Wiring breaker Non-fuse breaker Outdoor unit *1 The Ground-fault interrupter should support Inverter circuit. (e.g. Mitsubishi Electric's NV-C series or equivalent). Indoor unit *2 Ground-fault interrupter should combine using of local switch or wiring breaker. System controller *3 It shows data for B-type fuse of the breaker for current leakage.
  • Page 89 Over-current protector Wiring breaker Non-fuse breaker Outdoor unit *1 The Ground-fault interrupter should support Inverter circuit. (e.g. Mitsubishi Electric's NV-C series or equivalent). Indoor unit *2 Ground-fault interrupter should combine using of local switch or wiring breaker. System controller *3 It shows data for B-type fuse of the breaker for current leakage.

  • Page 90: Electrical Work

    2. Electrical work (1) Power cable specifications Thickness of wire for main power supply, capacities of the switch and system impedance Local swtich (A) Minimum wire thickness (mm Breaker for Max. Permissive Model Breaker for current leakage wiring (NFB) (A) System Impedance Main cable Branch...

  • Page 91: M-Net Control

    3. M-NET control Control wiring depends on system configurations. Be sure to read the section "4. An Example of a System to which an MA Remote Controller is connected" before starting wiring work. (1) Types and maximum allowable length of cables Control lines are categorized into two types: transmission line and remote controller line.
  • Page 92 1Address Setting The need for address settings and the address setting range depend on the system configuration. See "4. An Example of a System to which an MA Remote Controller is connected" for details. Address set at Address setting Unit or controller Mark Setting procedure time of shipment...

  • Page 93: An Example Of A System To Which An Ma Remote Controller Is Connected

    4. An Example of a System to which an MA Remote Controller is connected (1) Sample control wiring ❈ P750,P900-F models only < > < > < > Refer to the section 3.(2)1 "Address Setting."...
  • Page 94 (2) Sample control wiring (Different refrigerant group operation) < > < > < > efer to the section 3.(2) "Address Setting."...
  • Page 95 (3) Sample control wiring (connect the system controller to the transmission cable for the centralized control) < > < > < > (* L2 + L31 + L4 + L32 200m [656ft]) efer to the section 3.(2) "Address Setting."...

  • Page 96: System Control

    5. System control (1) System control for the indoor units 1 Various start/stop control (Indoor unit setting) 1) The restart setting for the indoor unit can be set with the DIP SW (SW1-9, 10) on the unit. Setting(SW1)(Note 4) Function Operation recovery after power failure Indoor unit will go into operation within approximately five minutes of Power reset...
  • Page 97 3) Emergency Operation Mode...
  • Page 99 (2) System control for the outdoor units 1 Various types of control using input-output signal connector on the outdoor unit (various connection options) Take out signals from the outdoor unit that is designated as OC if multiple outdoor units exist in a single system.

  • Page 102: Caution For Refrigerant Leakage

    Note 1. Countermeasure 3 should be done in a proper way in which the fresh air supply shall be on whenever the leakage happens. Note 2. In principle, MITSUBISHI ELECTRIC requires proper piping design, installation and air-tight testing after installation to avoid leakage happening.
  • Page 104 DATA BOOK PUHY-P-Y(S)JM-A PFAV-P-VM-E(-F) HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN http://Global.MitsubishiElectric.com New publication effective Mar.2011 Specifications subject to change without notice MEE10K032...

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