Mitsubishi Electric PUHY-P250YJM-A Product guide

DATA BOOK
PUHY-P250YJM-A (-BS)
PUHY-P500YSJM-A (-BS)
PQHY-P250YHM-A
PFD-P250VM-E
PFD-P500VM-E
MODEL

Safety Precautions
Before installing the unit, thoroughly read the following safety precautions.
Observe these safety precautions for your safety.
WARNING
This symbol is intended to alert the user to the presence of important instructions that must be followed to avoid
the risk of serious injury or death.
CAUTION
This symbol is intended to alert the user to the presence of important instructions that must be followed to avoid
the risk of serious injury or damage to the unit.
After reading this manual, give it to the user to retain for future reference.
Keep this manual for easy reference. When the unit is moved or repaired, give this manual to those who provide these
services.
When the user changes, make sure that the new user receives this manual.
WARNING
Ask your dealer or a qualified technician to install the
unit.
Improper installation by the user may result in water leak-
age, electric shock, smoke, and/or fire.
Properly install the unit on a surface that can with-
stand the weight of the unit.
Unit installed on an unstable surface may fall and cause in-
jury.
Only use specified cables. Securely connect each ca-
ble so that the terminals do not carry the weight of the
cable.
Improperly connected or fixed cables may produce heat
and start a fire.
Take appropriate safety measures against strong
winds and earthquakes to prevent the unit from falling.
If the unit is not installed properly, the unit may fall and
cause serious injury to the person or damage to the unit.
Do not make any modifications or alterations to the
unit. Consult your dealer for repair.
Improper repair may result in water leakage, electric shock,
smoke, and/or fire.
Do not touch the heat exchanger fins.
The fins are sharp and dangerous.
In the event of a refrigerant leak, thoroughly ventilate
the room.
If refrigerant gas leaks and comes in contact with an open
flame, poisonous gases will be produced.
Properly install the unit according to the instructions
in the installation manual.
Improper installation may result in water leakage, electric
shock, smoke, and/or fire.
Have all electrical work performed by an authorized
electrician according to the local regulations and in-
structions in this manual, and a dedicated circuit must
be used.
Insufficient capacity of the power supply circuit or improper
installation may result in malfunctions of the unit, electric
shock, smoke, and/or fire.
The water circuit should be a closed circuit.

WARNING
Securely attach the terminal block cover (panel) to the
unit.
If the terminal block cover (panel) is not installed properly,
dust and/or water may infiltrate and pose a risk of electric
shock, smoke, and/or fire.
Only use the type of refrigerant that is indicated on the
unit when installing or reinstalling the unit.
Infiltration of any other type of refrigerant or air into the unit
may adversely affect the refrigerant cycle and may cause
the pipes to burst or explode.
When installing the unit in a small room, exercise cau-
tion and take measures against leaked refrigerant
reaching the limiting concentration.
Consult your dealer with any questions regarding limiting
concentrations and for precautionary measures before in-
stalling the unit. Leaked refrigerant gas exceeding the lim-
iting concentration causes oxygen deficiency.
Consult your dealer or a specialist when moving or re-
installing the unit.
Improper installation may result in water leakage, electric
shock, and/or fire.
After completing the service work, check for a gas
leak.
If leaked refrigerant is exposed to a heat source, such as a
fan heater, stove, or electric grill, poisonous gases may be
produced.
Do not try to defeat the safety features of the unit.
Forced operation of the pressure switch or the temperature
switch by defeating the safety features of these devices, or
the use of accessories other than the ones that are recom-
mended by MITSUBISHI may result in smoke, fire, and/or
explosion.
Only use accessories recommended by MITSUBISHI.
Ask a qualified technician to install the unit. Improper instal-
lation by the user may result in water leakage, electric
shock, smoke, and/or fire.

Precautions for handling units for use with R410A
CAUTION
Do not use the existing refrigerant piping.
A large amount of chlorine that may be contained in the re-
sidual refrigerant and refrigerating machine oil in the exist-
ing piping may cause the refrigerating machine oil in the
new unit to deteriorate.
R410A is a high-pressure refrigerant and can cause the
existing pipes to burst.
Use refrigerant pipes made of phosphorus deoxidized
copper. Keep the inner and outer surfaces of the pipes
clean and free of such contaminants as sulfur, oxides,
dust, dirt, shaving particles, oil, and water.
These types of contaminants inside the refrigerant pipes
may cause the refrigerant oil to deteriorate.
Store the pipes to be installed indoors, and keep both
ends of the pipes sealed until immediately before braz-
ing. (Keep elbows and other joints wrapped in plastic.)
Infiltration of dust, dirt, or water into the refrigerant system
may cause the refrigerating machine oil to deteriorate or
cause the unit to malfunction.
Use a small amount of ester oil, ether oil, or alkylben-
zene to coat flares and flanges.
Infiltration of a large amount of mineral oil may cause the re-
frigerating machine oil to deteriorate.
Charge liquid refrigerant (as opposed to gaseous re-
frigerant) into the system.
If gaseous refrigerant is charged into the system, the com-
position of the refrigerant in the cylinder will change and
may result in performance loss.
Use a vacuum pump with a reverse-flow check valve.
If a vacuum pump that is not equipped with a reverse-flow
check valve is used, the vacuum pump oil may flow into the
refrigerant cycle and cause the refrigerating machine oil to
deteriorate.
Prepare tools for exclusive use with R410A. Do not use
the following tools if they have been used with the con-
ventional refrigerant (gauge manifold, charging hose,
gas leak detector, reverse-flow check valve, refrigerant
charge base, vacuum gauge, and refrigerant recovery
equipment.).
If the refrigerant or the refrigerating machine oil left on
these tools are mixed in with R410A, it may cause the re-
frigerating machine oil to deteriorate.
Infiltration of water may cause the refrigerating machine
oil to deteriorate.
Gas leak detectors for conventional refrigerants will not
detect an R410A leak because R410A is free of chlorine.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of the refrig-
erant will change, and the unit may experience power loss.
Exercise special care when handling the tools for use
with R410A.
Infiltration of dust, dirt, or water into the refrigerant system
may cause the refrigerating machine oil to deteriorate.
Only use refrigerant R410A.
The use of other types of refrigerant that contain chlorine
(i.e. R22) may cause the refrigerating machine oil to deteri-
orate.

Before installing the unit
WARNING
Do not install the unit where a gas leak may occur.
If gaseous refrigerant leaks and piles up around the unit, it
may be ignited.
Do not use the unit to keep food items, animals, plants,
artifacts, or for other special purposes.
The unit is not designed to preserve food products.
Do not use the unit in an unusual environment.
Do not install the unit where a large amount of oil or steam
is present or where acidic or alkaline solutions or chemical
sprays are used frequently. Doing so may lead to a re-
markable drop in performance, electric shock, malfunc-
tions, smoke, and/or fire.
The presence of organic solvents or corrosive gas (i.e.
ammonia, sulfur compounds, and acid) may cause gas
leakage or water leakage.
When installing the unit in a hospital, take appropriate
measures to reduce noise interference.
High-frequency medical equipment may interfere with the
normal operation of the air conditioner or vice versa.
Do not install the unit on or over things that cannot get
wet.
When the humidity level exceeds 80% or if the drainage
system is clogged, the indoor unit may drip water. Drain wa-
ter is also discharged from the outdoor unit. Install a central-
ized drainage system if necessary.

Before installing the unit (moving and reinstalling the unit) and performing
electrical work
CAUTION
Properly ground the unit.
Do not connect the grounding wire to a gas pipe, water pipe,
lightning rod, or grounding wire from a telephone pole. Im-
proper grounding may result in electric shock, smoke, fire,
and/or malfunction due to noise interference.
Do not put tension on the power supply wires.
If tension is put on the wires, they may break and result in
excessive heat, smoke, and/or fire.
Install an earth leakage breaker to avoid the risk of
electric shock.
Failure to install an earth leakage breaker may result in
electric shock, smoke, and/or fire.
Use the kind of power supply wires that are specified
in the installation manual.
The use of wrong kind of power supply wires may result in
current leak, electric shock, and/or fire.
Use breakers and fuses (current breaker, remote
switch <switch + Type-B fuse>, moulded case circuit
breaker) with the proper current capacity.
The use of wrong capacity fuses, steel wires, or copper
wires may result in malfunctions, smoke, and/or fire.
Do not spray water on the air conditioner or immerse
the air conditioner in water.
Otherwise, electric shock and/or fire may result.
When handling units, always wear protective gloves to
protect your hands from metal parts and high-tempera-
ture parts.
Periodically check the installation base for damage.
If the unit is left on a damaged platform, it may fall and
cause injury.
Properly install the drain pipes according to the in-
structions in the installation manual. Keep them insu-
lated to avoid dew condensation.
Improper plumbing work may result in water leakage and
damage to the furnishings.
Exercise caution when transporting products.
Products weighing more than 20 kg should not be carried
alone.
Do not carry the product by the PP bands that are used on
some products.
Do not touch the heat exchanger fins. They are sharp and
dangerous.
When lifting the unit with a crane, secure all four corners
to prevent the unit from falling.
Properly dispose of the packing materials.
Nails and wood pieces in the package may pose a risk of
injury.
Plastic bags may pose a risk of choking hazard to chil-
dren. Tear plastic bags into pieces before disposing of
them.

Before the test run
CAUTION
Turn on the unit at least 12 hours before the test run.
Keep the unit turned on throughout the season. If the unit is
turned off in the middle of a season, it may result in malfunc-
tions.
To avoid the risk of electric shock or malfunction of the
unit, do not operate switches with wet hands.
Do not touch the refrigerant pipes with bare hands dur-
ing and immediately after operation.
During or immediately after operation, certain parts of the
unit such as pipes and compressor may be either very cold
or hot, depending on the state of the refrigerant in the unit
at the time. To reduce the risk of frost bites and burns, do
not touch these parts with bare hands.
Do not operate the unit without panels and safety
guards.
Rotating, high-temperature, or high-voltage parts on the unit
pose a risk of burns and/or electric shock.
Do not turn off the power immediately after stopping
the operation.
Keep the unit on for at least five minutes before turning off
the power to prevent water leakage or malfunction.
Do not operate the unit without the air filter.
Dust particles may build up in the system and cause mal-
functions.

CONTENTS
Safety Precautions
I General Equipment Descriptions
1. Unit configuration table.................................................................................................................................. 1
2. Operable temperature range .......................................................................................................................... 3
II Product Specifications
1. Specifications .................................................................................................................................................. 4
(1) Indoor unit
(2) Outdoor unit/Heat source unit
2. External Dimensions ....................................................................................................................................... 6
(1) Indoor unit
(2) Outdoor unit/Heat source unit
3. Center of Gravity............................................................................................................................................ 11
(1) Indoor unit
(2) Outdoor unit/Heat source unit
4. Electrical Wiring Diagrams ........................................................................................................................... 13
(1) Indoor unit
(2) Outdoor unit/Heat source unit
5. Optional Parts ................................................................................................................................................ 17
(1) Outdoor unit
III Product Data
1. Capacity Curves ............................................................................................................................................ 18
(1) Correction by temperature
(2) Part Load Performance
(3) Correction by refrigerant piping length
(4) Correction by indoor unit airflow rate
(5) SHF Curves
2. Sound Levels ................................................................................................................................................. 22
(1) Measurement condition
(2) NC Curves
3. Fan Characteristics Curves .......................................................................................................................... 24
IV System Design
1. Piping Design ................................................................................................................................................ 27
(1) PFD-P250VM-E
(2) PFD-P500VM-E (two refrigerant circuit system)
(3) PFD-P500VM-E (single refrigerant circuit system)
(4) Refrigerant charging calculation
2. Designing of water circuit system ............................................................................................................... 31
(1) Example of basic water circuit
(2) Cooling tower
(3) Auxiliary heat source and heat storage tank
(4) Piping system
(5) Practical System Examples and Circulation Water Control
(6) Pump interlock circuit
3. Water piping work.......................................................................................................................................... 42
(1) Items to be observed on installation work
(2) Thermal insulation work
(3) Water treatment and water quality control
4. Control Wiring ................................................................................................................................................ 43
(1) Specifications of control wiring and maximum length of wiring
5. Types of switch settings and setting methods ........................................................................................... 44
(1) Address settings
(2) Power supply switch connector connection on the outdoor unit
(3) Choosing the temperature detection spot by indoor unit (Factory Setting: SWC “Standard”)
(4) Setting the MA “Sub” controller
(5) Connection of two refrigerant circuits
6. Sample System Connection ......................................................................................................................... 46
(1) System with MA remote controller
(2) System with MA remote controller and AG-150A

CONTENTS
7. External input/output specifications ........................................................................................................... 51
(1) Input/output specifications
(2) Wiring
(3) Wiring Method
(4) Switch setting
(5) Dehumidification priority control
(6) Normal/Local switching switch (SW9)
8. System Rotation Control............................................................................................................................... 56
9. Notes on the use of optional accessories ................................................................................................... 56
10. Caution for refrigerant leakage................................................................................................................... 57
(1) Refrigerant property
(2) Confirm the Critical concentration and take countermeasure
V Air Conditioning the Computer Room
1. Main Features of the Floor-Duct Air Conditioners...................................................................................... 58
2. Features of air-conditioner for computer room .......................................................................................... 58
3. Step-by-Step Plan for the Implementation of the Air-Conditioning .......................................................... 59
4. Conditions for the Installation of Computer-Room Air Conditioners ....................................................... 60
(1) Outdoor Temperature and Humidity
(2) Indoor Temperature and Humidity
(3) Matching the Volume of Air Flow
(4) Considering a Back-up Air Conditioning System
5. Setting the Air conditioners ......................................................................................................................... 61
(1) Air-Conditioning Load
(2) Sample Selection of Air Conditioners
6. Automatic Control of the Computer Room.................................................................................................. 63
VI Maintenance/Inspection
1. Maintenance/Inspection Schedule ............................................................................................................... 64
(1) Approximate Longevity of Various Parts
(2) Notes
(3) Details of Maintenance/Inspection

- 1 -
I General Eq uipment Des criptions (PE FY-AF1200C FMR)
I General Equipment Descriptions
1. Unit configuration table
*PFD-type indoor units cannot be connected to outdoor units and heat source unit other than the ones specified above.
*PFD-type indoor units and other types of indoor units cannot coexist in the same refrigerant system.
*It is necessary to change pulley and V-belt when using it by the power supply frequency 60Hz.
*For restrictions when the PFD-type indoor units are connected (related to the system), see IV System Design.
*20HP system of the heat source unit cannot be connected to a single refrigerant circuit.
When using a PFD-P250VM-E as an indoor unit, connect an outdoor unit PUHY-P250YJM-A/PQHY-P250YHM-A to each
indoor unit and operate with a built-in remote controller for the indoor unit.
*1: Bold line indicates refrigerant piping (gas/liquid). This system consists of single refrigerant circuit.
*2: Indicates TB3-type transmission line that connects the indoor and outdoor units.
This system consists of single refrigerant circuit.
*3: Indicates TB7-type transmission line that allows the unit to communicate with the controller.
When using a PFD-P500VM-E as an indoor unit, connect 1 PUHY-P500YSJM-A outdoor unit to each indoor unit and operate
with a built-in remote controller for the indoor unit.
*1: Bold line indicates refrigerant piping (gas/liquid). This system consists of single refrigerant circuit.
*2: Indicates TB3-type transmission line that connects the indoor and outdoor units.
This system consists of single refrigerant circuit.
*3: Indicates TB7-type transmission line that allows the unit to communicate with the controller.
10HP system 20HP system
Model Name
Indoor unit PFD-P250VM-E PFD-P500VM-E
Outdoor unit PUHY-P250YJM-A PUHY-P250YJM-A × 2
PUHY-P500YSJM-A
Heat source unit PQHY-P250YHM-A PQHY-P250YHM-A × 2
<10HP System>
24V DC
M-NET
PAC-SC51KUA
Outdoor Unit/Heat source unit
AG-150A
PUHY-P250YJM-A
PQHY-P250YHM-A
Indoor Unit
Transmission
line
Refrigerant pipe
PFD-P250VM-E
TB7 TB3 *2
*3
*1
CENTRALIZEDCONTROLLER AG-150A
<20HP System>
Single refrigerant circuit
24V DC
M-NET
PAC-SC51KUA
Outdoor Unit
AG-150A
PUHY-P500YSJM-A
Indoor Unit
PFD-P500VM-E
TB7 *2
*3
*1
TB3 Transmission
line
Refrigerant pipe
CENTRALIZEDCONTROLLER AG-150A
TB3

- 2 -
When using a PFD-P500VM-E as an indoor unit, connect 2 PUHY-P250YJM-A/PQHY-P250YHM-A outdoor units to an
indoor unit and operate with a built-in remote controller for the indoor unit.
At the factory settings, this model of indoor unit is designed and set to accommodate a single refrigerant circuit.
Connection of two refrigerant circuits to the indoor unit requires setting change and pipe work.
*1: Bold line indicates refrigerant piping (gas/liquid). This system consists of two refrigerant circuits.
*2: Indicates TB3-type transmission line that connects the indoor and outdoor units.
This system consists of two refrigerant circuit.
*3: Indicates TB7-type transmission line that allows the unit to communicate with the controller.
Two refrigerant circuits
24V DC
M-NET
PAC-SC51KUA
Outdoor Unit/Heat source unit
AG-150A
PUHY-P250YJM-A
PQHY-P250YHM-A
PUHY-P250YJM-A
PQHY-P250YHM-A
Indoor Unit
PFD-P500VM-E
TB7 TB3 *2
*1
CENTRALIZEDCONTROLLER AG-150A
TB3TB7
*3
Transmission
line
Refrigerant
pipe
Transmission line
Refrigerant pipe

- 3 -
2. Operable temperature range
PFD unit + PUHY-P250YJM-A, PUHY-P500YSJM-A
PFD unit + PQHY-P250YHM-A
* The height between the Outdoor PUHY-P-YJM-A and Indoor could make the operation
temperature range narrow. For details, refer to IV 1. Piping Design (P27).
30
25
20
15
10
5
-10 -5 0 5 10 15 20 25 30 35 40 45 50
Indoor temperature(°CWB)
Circulating water temperature(°C)
30
25
20
15
10
5
-10 -5 0 5 10 15 20 25 30 35 40 45 50
Indoor temperature(°CDB)
Circulating water temperature(°C)
30
25
20
15
10
-10-15 -5 0 5 10 15 20 25 30 35 40 45
Indoor temperature(°CWB)
Outdoor temperature (°CDB)
30
25
20
15
10
5
-10-15-20 -5 0 5 10 15 20 25 30 35 40
Indoor temperature(°CDB)
Outdoor temperature (°CWB)
• Cooling
• Heating
• Cooling
• Heating

- 4 -
II Product Specifications (PEF Y-AF1200CFMR)
II Product Specifications
1. Specifications
(1) Indoor unit
(2) Outdoor unit/Heat source unit
3N~380/400/415V(50Hz), 400/415V(60Hz)
PFD-P500VM-E
5.00
Power source
kW
-
Power input
System capacity
A
m
3
/min
Pa
kg
dB(A)
m
mm
Current
Heat exchanger
Fan
Refrigerant
External finish
Type x Quantity
Airflow rate
External static pressure
kW
Motor Output
Air filter
Refrigerant
piping diameter
*2
Refrigerant piping allowable length
Gas pipe
Liquid pipe
Cross fin (Aluminum plate fin and copper tube)
Sirocco fan x 2Sirocco fan x 1
ø 9.52 Brazed (ø 12.7 for over 90m)
ø 22.2 Brazed
Single refrigerant
circuit
Two refrigerant
circuit
320
1,950 x 1,380 x 780
9.5/9.0/8.7
PFD-P250VM-E
2.50
kW 28.0 31.5 56.0 63.0
5.3/5.0/4.9
160
120120
4.42.2
380
59
165
Gas pipe
Liquid pipe ø 15.88 Brazed
ø 28.58 Brazed
Gas pipe
Liquid pipe
ø 9.52 Brazed (ø 12.7 for over 90m)
ø 22.2 Brazed
520
63
165
R410A
Galvanized steel plate (with polyester coating)
<MUNSEL 2.9GY 8.6/0.3(White) 7.2GB 3.2/5.3(Blue) or similar>
PP Honeycomb fabric (washable)
Thermal switch
1,950 x 1,980 x 780
Protection devices (Fan)
External dimensions
HxWxD
Model name
Sound pressure level
Net weight
Cooling Heating *1 *1Cooling Heating
Note: *1. Heating can be used only by the indoor warming-up.
*2. At the factory settings, this model of indoor unit is designed and set to accommodate a single refrigerant circuit.
Connection of two refrigerant circuits to the indoor unit requires setting change and pipe work.
** Installation/foundation work, electric connection work, duct work, insulation work, power source switch and other items are
not specified in the specifications.
28.0 31.5
3N ~ 380/400/415V 50/60Hz
Capacity
Model name
kW
Power source
*1
*2
kW
A
m3/min
kW
kW
kW
mm
dB(A)
kg
Power input
Current
Fan
Airflow rate
Type
x Quantity
Motor output
Type
Motor output
Crankcase heater
Compressor
Refrigerant/Lubricant
External finish
High pressure protection
Inverter circuit (COMP./FAN)
Compressor
Fan
External dimension H
x W x D
Protection
devices
Refrigerant
piping diameter
Liquid pipe
Gas pipe
Sound pressure level
Net weight
1,710 (without legs 1,650) x 920 x 760
Propeller fan x 1
170
0.46
x
1
Inverter scroll hermetic compressor
6.8
0.035
R410A/MEL32
Heat exchanger Salt-resistant cross fin & copper tube
Over-heat protection, Over-current protection
ø9.52 Brazed (ø12.7 for over 90m)
ø22.2 Brazed
Pre-coated galvanized steel sheets (+ powder coating for -BS type) <MUNSEL 5Y 8/1 or similar>
High pres. Sensor & High pres. Switch at 4.15MPa
200
6.606.80
11.1/10.5/10.211.4/10.9/10.5
PUHY-P250YJM-A (-BS)
connected with PFD series
Over-heat protection
Thermal switch
58
Cooling Heating
Note: *1. Cooling/Heating capacity indicates the maximum value at operation under the following condition.
*2. It is measured in anechoic room.
** Installation/foundation work, electrical connection work, duct work, insulation work, power source switch,
and other items shall be referred to the Installation Manual.
Indoor: 27°CDB/19°CWB
Indoor: 20°CDB
Pipe length: 7.5m
Outdoor: 35°CDB
Outdoor: 7°CDB/6°CWB
Level difference: 0m
<Cooling>
<Heating>

- 5 -
56.0 63.0
3N ~ 380/400/415V 50/60Hz
Capacity
Model name
kW
Power source
*1
*2
kW
A
m3/min
kW
kW
kW
mm
dB(A)
kg
Power input
Current
Set Model
Fan
Airflow rate
Type
x Quantity
Motor output
Type
Motor output
Crankcase heater
Compressor
Refrigerant/Lubricant
External finish
High pressure protection
Inverter circuit (COMP./FAN)
Compressor
Fan
External dimension H
x W x D
Protection
devices
Refrigerant
piping diameter
Liquid pipe
Gas pipe
Sound pressure level
Net weight
1,710 (without legs 1,650) x 920 x 7601,710 (without legs 1,650) x 920 x 760
Heat exchanger
Propeller fan x 1
PUHY-P250YJM-A(-BS)
170
0.46
x
1
Inverter scroll hermetic compressor
6.8
0.035
R410A/MEL32
Salt-resistant cross fin & copper tube
Propeller fan x 1
PUHY-P250YJM-A(-BS)
170
0.46
x
1
Inverter scroll hermetic compressor
6.8
0.035
R410A/MEL32
Salt-resistant cross fin & copper tube
Over-heat protection, Over-current protection
ø9.52 Brazed
ø22.2 Brazed
Pre-coated galvanized steel sheets (+ powder coating for -BS type) <MUNSEL 5Y 8/1 or similar>
High pres. Sensor & High pres. Switch at 4.15MPa
200
13.2013.60
22.2/21.0/20.422.8/21.8/21.0
PUHY-P500YSJM-A (-BS)
connected with PFD series
Over-heat protection
Thermal switch
61
ø9.52 Brazed
ø22.2 Brazed
200
Cooling Heating
Note: *1. Cooling/Heating capacity indicates the maximum value at operation under the following condition.
*2. It is measured in anechoic room.
** Installation/foundation work, electrical connection work, duct work, insulation work, power source switch,
and other items shall be referred to the Installation Manual.
Indoor: 27°CDB/19°CWB
Indoor: 20°CDB
Pipe length: 7.5m
Outdoor: 35°CDB
Outdoor: 7°CDB/6°CWB
Level difference: 0m
<Cooling>
<Heating>
Capacity
Model name
Power source
Power input
Current
Type
Motor output
Compressor
Refrigerant/Lubricant
External finish
External dimension
Heat exchanger
Protection
devices
High pressure protection
Compressor
Inverter circuit (COMP./FAN)
Refrigerant
piping diameter
Liquid pipe
Gas pipe
Sound pressure level
Net weight
Crankcase heater
kW
kW
A
kW
kW
mm
dB(A)
kg
28.0 31.5
3N ~ 380/400/415V 50/60Hz
5.515.45
9.3/8.8/8.59.2/8.7/8.4
Cooling Heating
Inverter scroll hermetic compressor
6.3
0.035 (240V)
R410A/MEL32
Plate type
Acrylic painted steel plate
Over-heat protection, Over-current protection
Over-heat protection
ø9.52 Brazed (ø12.7 for over 90m)
ø22.2 Brazed
195
49
PQHY-P250YHM-A
connected with PFD series
Note:
Indoor: 27°CDB/19°CWB
Indoor: 20°CDB
Pipe length: 7.5m
Water temperature: 30°C
Water temperature: 20°C
Level difference: 0m
<Cooling>
<Heating>
*2. It is measured in anechoic room.
** Installation/foundation work, electrical connection work, duct work, insulation work, power source switch,
and other items shall be referred to the Installation Manual.
*1. Cooling/Heating capacity indicates the maximum value at operation under the following condition.
HxWxD 1,160 (1,100 without legs) x 880 x 550
High pres. Sensor & High pres. Switch at 4.15MPa
*1
*2

- 6 -
2. External Dimensions
(1) Indoor unit
PFD-P250VM-E
Unit : mm
390
50
50
100
Note1. Be sure to set up a trap for Emergency drain piping. (Trap height:beyond 100mm) (Trap is not necessary for main drain piping.) 2. Approve this figure because it is refused for the improvement and specification subject to change without notice. 3. Amputate a gas pipe/liquid pipe in the fixed height at the time of 2 refrigerant circuit connection, and connect it with the local pipe.
Drain piping connection for humidifier
Air inlet
500 or more200 or more
400 or more
800 or more
Indoor unit
Service space
Unit surface figure
Pipe execution space
Unit front figure
Indoor unit
Service space
Hole for the control wiring
Lifting bolts
<2-ø32 knock out
hole>
Hole for the power supply(Body)
<Nomal/Local>
1380
Remote controller
A
Refrig. piping <gas> ø22.2 braze
Power supply:White Operating :Green Check :Yellow Failure :Red
(Accessory)
Filter
Lamp
<view from A>
320
220
1950
20
100
462
580
Panel
<ø32 knock out hole>
Air inlet
Control box
50
140
Hole for the control wiring <ø32 knock out hole>
Main drain piping connection <Rp1-1/4>
<Accessory> · Lifting bolts ······4pc. · Front panel opening and closing key ······1pc.
100
Air outlet
Refrig. piping <liquid> ø9.52 braze
Hole for the power supply <ø32 knock out hole>
260
68
100
1180
780
1340
Hole for the control wiring(ø60)
410
68
Hole for the power supply(ø60)
321
220
Hole for gas pipe connecting(ø42)
Air outlet
20
Bolt holes:8-ø18
140
305
100
518
Hole for liquid pipe connecting(ø24)
65
<Rp1-1/4>
Hole for liquid pipe connecting(ø24)
87
186
20
Emergency drain piping connection <Rp1-1/4>
Hole for gas pipe connecting(ø42)
Changeover switch (SW9)
340
100
150
260
171
20
401
740

- 7 -
PFD-P500VM-E
50100
140
50
50390
100
68
124
135
Note1. Be sure to set up a trap for Emergency drain piping. (Trap height:beyond 100mm) (Trap is not necessary for main drain piping.) 2. Approve this figure because it is refused for the improvement and specification subject to change without notice. 3. Amputate a gas pipe/liquid pipe in the fixed height at the time of 2 refrigerant circuit connection, and connect it with the local pipe.
Refrig. piping <liquid> in 2 refrig. circuit system ø 9.52 braze No.1
Refrig. piping <gas> in 2 refrig. circuit system type P450:ø 19.05 braze, type P560:ø 22.2 braze No.1
Refrig. piping <liquid> ø 15.88 braze
Refrig. piping <gas> ø 28.58 braze
Hole for No.2 gas pipe connecting(ø 42) in 2 refrig. circuit system
Hole for No.2 liquid pipe connecting(ø 24) in 2 refrig. circuit system
Hole for liquid pipe connecting(ø 34) Hole for No.1 liquid pipe connecting (ø 24) in 2 refrig. circuit system
Bolt holes:8-ø 18
Hole for No.1 gas pipe connecting(ø 42) in 2 refrig. circuit system
Hole for gas pipe connecting(ø 48)
Main drain piping connecting<Rp1-1/4>
Drain piping connection for humidifier
<Accessory> · Lifting bolts ······4pc. · Front panel opening and closing key ······1pc.
Air inlet
Service space
Indoor unit
Pipe execution space
Panel opening and closing dimension
Indoor unit
Unit surface figure
Service space
400 or more
Unit front figure
1000 or more *1
200 or more
*1. It is necessary for the removal
of the panel beyond 600mm.
500 or more
710
Refrig. piping <gas> in 2 refrig. circuit system type P450:ø 19.05 braze, type P560:ø 22.2 braze No.2
680
<2-ø 32 knook out
hole>
<ø 32 knook out hole>
Air outlet
Air inlet
Power supply:White Operating :Green Check :Yellow Failure1 :Red Failure2 :Red
<Normal/Local>
(Accessory)
<view from A>
<Rp1-1/4>
Air outlet
Hole for liquid side pipe connecting or No.1 gas side pipe connecting(ø 42) in 2 refrig. circuit system
Hole for No.2 gas side pipe connecting(ø 42) in 2 refrig. circuit system
100 1001780
1940
100
2020
20
65
321
100
410
359 241
740
359
580
305
320
220
370
20
Emergency drain piping connection <Rp1-1/4>
Hole for No.1 liquid side pipe connecting (ø 24) in 2 refrig. circuit system
Hole for the power supply(ø 60)
1950
780
Hole for gas side pipe connecting or No.2 liquid side pipe connecting(ø 48) in 2 refrig. circuit system
440
Air outlet
185
379
135
Refrig. piping <liquid> in 2 refrig. circuit system ø 9.52 braze No.2
68
120
Hole for the control wiring <ø 32 knook out hole>
Hole for the power supply <ø 32 knook out hole>
220
150
81
Hole for the control wiring(ø 60)
Panel
68
Lifting bolts
171
A
Control box
Lamp
Filter
Remote controller
838
Hole for the control wiring
1980
124
68
Hole for the power supply(Body)
Changeover switch (SW9)
Unit : mm

- 8 -
(2) Outdoor unit/Heat source unit
PUHY-P250YJM-A(-BS)
Unit : mm
For transmission cables
For wires
For pipes
Specifications
Usage
NO.
<Accessories>
Connecting pipe
<Gas>
•
Elbow(IDø25.4XODø25.4)
•
Pipe (IDø25.4XODø22.2)
Note1. Please refer to the Data book (G8 or later) for information
regarding necessary spacing around the unit and foundation work.
2. The detachable leg can be removed at site.
At brazing of pipes,wrap the refrigerant service valve with wet cloth and keep the temperature of refrigerant service valve under 120°C
3.
1pc. 1pc.
<Liquid>
•
Pipe (IDø9.52XODø9.52) 1pc.
1 2 3 4 5 6
Front through hole Bottom through hole Front through hole Front through hole Bottom through hole Front through hole
102X72 Knockout hole 150X92 Knockout hole ø65 or ø40 Knockout hole ø52 or ø27 Knockout hole ø52 Knockout hole ø34 Knockout hole
2X5-
ø
4.6 Hole
(Make hole at the plastic fan guard for snow hood attachment)
15015015015080
18884
18
760
920
<Snow hood attachment hole>
Top view
1710
1410
1650
240
Intake air
Service panel
Control box
Intake air
(60)
7290
102
98
204
251
132 88
2X2-14X20 Oval hole
(front and back,2 points) Note 2*
Detachable leg
6
4
3
1
Front view
221 150
83
251
186
145
760
18 18
86
80 80
92
Refrigerant service valve <gas>
5
2
131
C
Refrigerant service valve <liquid>
(Mounting pitch)
Bottom view
(Mounting pitch)
(760)
724(721
~ 727)
Discharge air
Intake air
Refrigerant service valve <gas>
Refrigerant service valve <liquid>
A
B(60)
55
60
25
760
25
55
60
54
Left side view
Connecting pipe specifications
145
C
172142
BA
GasLiquid
PUHY-P250YJM
Model
Position dimensions for the refrigerant service valve
Connection specifications for the refrigerant service valve*1
GasLiquid
ø22.2 Brazed
ø9.52 Brazed
(ø12.7 Brazed) *2
*1 Connect by using the connecting pipes (for bottom piping and front piping) that are supplied. *2 Total length>=90m

- 9 -
PUHY-P500YSJM-A(-BS)
Unit : mm
ø9.52 ø22.2
(60) 1650
1710
Intake air
Outdoor unit 2Outdoor unit 1
Intake air Intake
air
Left view
To indoor unit
Front view
c
db
a
f
e
Gas Twinning Kit <optional parts> Liquid Twinning Kit <optional parts>
To indoor unit
Twinning Kit connection size
PUHY-P500YSJM-A(-BS)
PUHY-P250YJM-A(-BS) PUHY-P250YJM-A(-BS)
Package unit name
Component unit name
Outdoor Twinning Kit (optional parts)
Indoor unit~Twinning Kit
Outdoor unit 1
CMY-Y100VBK2
P250
Note 1.Connect the pipes as shown in the figure above. Refer to the table above for the pipe size.
2.The detachable leg can be removed at site. 3.Twinning Kit should not be tilted more than 15 degrees from the horizontal plane.
Be sure to see the Installation Manual for details of Twinning Kit installation.
4.The pipe section before the Twinning Kit (sections "a" and "b" in the figure) must have at least 500mm of straight section
(*including the straight pipe that is supplied with the Twinning Kit).
5.Only use the Twinning Kit by Mitsubishi (optional parts).
760 920920 30
Twinning Kit~Outdoor unit
Unit model Liquid Gas
c or e d or f
b
Detachable leg
Note 2*
a
Gas
Liquid
Outdoor unit 2
Discharge air
ø15.88 ø28.58

- 10 -
PQHY-P250YHM-A
Unit : mm
Service space (front side)
Service space
(front side)
Top view
The space for control box replacement
450
600
170
350
725
600
450
170
1100
550
(530)
(102)
(53)
608
563
584
121 226
234
18
78
168
433
548
Control box
Service panel
8
7
3
2
880
Fig. BFig. A
Connection specifications for the refrigerant service valve
Model
Note 1. Close a hole of the water piping, the refrigerant piping,
the power supply, and the control wiring and unused knockout holes with the putty etc. so as not to infiltrate rain water etc. (field erection work)
Note 2. At the time of product shipment, the front side piping
specification serves as the local drainage connection. When connecting on the rear side, please remove the rear side plug sealing corks, and attach a front side. Ensure there is no leak after the attachment has been fitted.
Note 3. Take notice of service space as Fig. A. (In case of single
installation, 600mm or more of back space as front space makes easier access when servicing the unit from rear side)
Note 4. If water pipes or refrigerant pipes stretch upward,
required space for service and maintenance due to replacement of control box is shown in Fig. B.
Note 5. Environmental condition for installation; -20~40°C (DB)
as indoor installation.
Note 6. In case the temperature around the heat source unit has
possibility to drop under 0°C, be careful for the following point to prevent the pipe burst by the water pipe freeze-up. · Circulate the water all the time even if the heat source unit is not in operation. · Drain the water from inside of the heat source unit when the heat source unit will not operate for a long term.
Note 7. Ensure that the drain piping is downward with a pitch of
more than 1/100.
Note 8. The detachable leg can be removed at site. Note 9. At brazing of pipes, wrap the refrigerant service valve
with wet cloth and keep the temperature of refrigerant service valve under 120°C.
Connecting pipe specifications <Accessories> · Refrigerant (Liquid) conn. pipe ·····1 pc. (P250 ; Packaged in the accessory kit) · Refrigerant (Gas) conn. pipe ·····1 pc. (P250 ; Packaged in the accessory kit)
PQHY-P250YHM-A
*1. Connect by using the connecting pipes that are supplied.
ø22.2 Brazed *1
ø9.52 Brazed *1
GasLiquid
550
60
20
74
1160
(60) 1100
141
213
240
2 x 2-14 x 20 Oval hole
140
75
58
22
40
2 x 2-14 x 20 Oval hole (Installation support hole)
5 4
Refrigerant service valve <Gas> Refrigerant service valve <Liquid>
1
83
(front and back, 2 points) Note 8* Detachable leg
506 (503~509)
470 (467~473)
(550)
22
40
80
23
(Installation support
hole pitch)
(Mounting pitch)
834
720 (Mounting pitch)
(880)
80
23 (Installation support hole pitch)
550
880
6
60 8
ø45 Knockout hole ø34 Knockout hole ø52 or ø27 Knockout hole
Front through hole Front through hole Front through hole Front through hole
140 x 77 Knockout hole ø65 or ø40 Knockout hole
Front through hole inlet outlet
Rc1-1/2 Screw Rc1-1/2 Screw
Rc3/4 Screw
Specifications
Usage
For pipes
For wires
For transmission cables
Water pipe
Drain pipe
NO.

- 11 -
3. Center of Gravity
(1) Indoor unit
PFD-P250VM-E
PFD-P500VM-E
Y
L
X
Z
Y
L
X
Z
Model L X Y Z
PFD-P500VM-E 580 967 270 714
Model L X Y Z
PFD-P250VM-E 580 581 222 739
Unit : mm
Unit : mm