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 ! ! .
! . 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-P250YHM-A PUHY-P500YSHM-A PUHY-P750YSHM-A...
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.
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.
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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.
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...
7. Fan characteristic curves •PFAV-P250VM-E 50Hz ······Standard 2.2kW Internal resistance Airflow rate < m / min > 60Hz ······Standard 2.2kW Internal resistance Airflow rate < m / min >...
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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>...
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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...
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•PFAV-P500VM-E 50Hz ······Standard 5.5KW Internal resistance Airflow rate < m / min > 60Hz ······Standard 5.5KW Internal resistance Airflow rate < m / min >...
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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>...
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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."...
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•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 >...
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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>...
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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."...
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•PFAV-P300VM-E-F 50Hz ······Standard 1.5kW Internal resistance Airflow rate < m / min > 60Hz ······Standard 1.5kW Internal resistance Airflow rate < m / min >...
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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>...
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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...
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•PFAV-P600VM-E-F 50Hz ······Standard 2.2KW Internal resistance Airflow rate < m / min > 60Hz ······Standard 2.2KW Internal resistance Airflow rate < m / min >...
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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>...
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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."...
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•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 >...
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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>...
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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."...
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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.
8. Optional parts (1) Plenum chamber -CC83PL-E For P250 indoor unit 1200 10- 3 Holes Branch duct hole (Knockout) Air outlet -CC85PL-E For P500 indoor unit 1420 10- 3 Holes Branch duct hole (Knockout) Side air outlet Air outlet -CC87PL-E For P750 indoor unit 1750 Air outlet...
6. Optional parts (1) Outdoor twinning kit For PUHY-P-YSHM, following optional Outdoor Twinning Kit is needed to use to combine to refrigerant flows of its PUHY-P- YHM. Details of selecting the proper kit should be referred to the System Design Section. CMY-Y100VBK2 For Gas pipe: For Liquid pipe:...
! %. Capacity Tables (1) Correction by temperature 1Cooling • P250 • P500 • Cooling capacity • Cooling capacity Indoor Temperature (˚CWB) Indoor Temperature (˚CWB) Outdoor temperature (˚CDB) Outdoor temperature (˚CDB) • Cooling input • Cooling input Indoor Temperature (˚CWB) Indoor Temperature (˚CWB) Outdoor temperature (˚CDB) Outdoor temperature (˚CDB)
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2Heating • P250 • P500 • Heating capacity • Heating capacity Indoor Temperature [˚CDB] Indoor Temperature [˚CDB] Outdoor temperature (˚CWB) Outdoor temperature (˚CWB) • Heating input • Heating input Indoor Temperature [˚CDB] Indoor Temperature [˚CDB] Outdoor temperature (˚CWB) Outdoor temperature (˚CWB) •...
%. 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.
% ! . 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.
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(3) Piping direction a) 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 or less, so as to avoid compressing fan guard.
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b) 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. ·...
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d) 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. ·...
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f ) 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 ground. Tilting the twinning pipe more than specified will cause damage to the unit. •...
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g) Twinning on the outdoor unit side See the following drawing for connecting the pipes between the outdoor units. <PUHY-P500YSHM-A> Field piping Twinning kit Field piping CAUTION The length of the straight pipe must be 500mm or longer. If not, it may cause improper operation.
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(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. Even in the other areas, full consideration is required for installation of unit in order to prevent abnormal operations caused by wind or snow. When rain and snow directly fall on unit in the case of air-conditioning operations in 10 or less degrees centigrade outdoor air, mount inlet and outlet ducts on unit for assuring stable operations.
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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.
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.
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(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 100 or more...
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• 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.
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(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. •...
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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.
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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. 1Loosen the setscrew holding the fixed and the sliding discs in place. 2Turn the sliding disc counter-clockwise until no gap is left (0 mm) between the fixed and the sliding discs.
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• 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 ! !-7.
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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...
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• 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 ✻...
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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.
The maximum operation pressure of R410A air conditioner is 4.30 MPa. 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.
2. Piping Design 1-2-1. PUHY-P250 Piping Note1. "-" Note2. If the A/C system is designed to use cooling mode under outdoor temperature 0˚C, H’<=15m. Note3. 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"...
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1-2-2. PUHY-P500, 750 Piping Note1. "-" Note2. If the A/C system is designed to use cooling mode under outdoor temperature 0˚C, H’<=15m. Note3. 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"...
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1-2-3. PUHY-P-YHM's refrigerant charging calculation Sample connection (with PFAV-P600VM-E-F) Note1. "-" Note2. If the A/C system is designed to use Cooling-mode under Outside temperature 0˚C, H’<=15m. Note3. 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.
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.
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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.
2. Electrical work (1) Power cable specifications Thickness of wire for main power supply, capacities of the switch and system impedance Minimum wire thickness (mm Local swtich (A) Breaker for Model Breaker for current leakage Main cable Branch Capacity Fuse Ground wiring (NFB) (A) PUHY-P250...
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.
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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...
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 Function Operation recovery after power failure Indoor unit will go into operation within approximately five minutes of Power reset power restoration regardless of its operation status before power off...
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(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.
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.
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DATA BOOK PUHY-P-Y(S)HM-A PFAV-P-VM-E(-F) Issued in Jul. 2009 MEE08K100 New publication effective Jul. 2009. Printed in Japan Specifications subject to change without notice.