Mitsubishi Electric PFD-P250VM-E User manual

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 SHF Curves
2-4 Correction by refrigerant piping length
2-5 Operation limit
3. Sound Levels
3-1 Noise Level
3-2 NC Curves
3-3 Fan Characteristics Curves
4. External Dimensions
5. Electrical Wiring Diagrams
6. Refrigerant Circuit Diagram And Thermal Sensor
7. System Design
7-1 Refrigerant Piping System
7-2 Control Wiring
7-3 Types of switch settings and setting methods
7-4 Sample System Connection
7-5 External input/output specifications
8. Air Conditioning the Computer Room
8-1 Main Features of the Floor-Duct Air Conditioners
8-2 Features of air-conditioner for computer room
8-3
Step-by-Step Plan for the Implementation of the Air-Conditioning
8-4 Conditions for the Installation of Computer-Room Air Conditioners
8-5 Setting the Air conditioners
8-6 Automatic Control of the Computer Room
9. Maintenance/Inspection
9-1 Maintenance/Inspection Schedule
1
1
2
3
4
4
4
5
6
6
7
7
8
8
9
13
17
19
19
20
21
23
27
30
30
30
31
32
33
35
36
36
Close control PUHY-P-YGM-A
PFD-P-VM-E
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1. Specifications
1-1.Main Features
1
(1) List of Models
<10HP System>
<20HP System>
Single refrigerant circuit
PUHY-P250YGM-A
PUHY-P500YGM-A
10HP(Down flow): PFD-P250VM-E
20HP(Down flow): PFD-P500VM-E
✻PFD-type indoor units cannot be connected to outdoor units other than the ones specified above.
✻It is necessary to rewrite the S/W on the control circuit board of the outdoor unit connected to
the PFD-type indoor units.
✻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.
When using a PFD-P500VM-E as an indoor unit, connect an outdoor unit PUHY-P500YGM-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.
✻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-P250VM-E as an indoor unit, connect an outdoor unit PUHY-P250YGM-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.
✻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.
} Outdoor Unit
} Indoor Unit
Outdoor Unit
G-50A PUHY-P250YGM-A
Indoor Unit
PFD-P250VM-E
TB7 TB3 ✻2✻3
✻1
12V DC
M-NET
PAC-SC50KUA
UP
POWERRATING
MODEL
WEIGHT
SERIALNo. 2.11kg
POWERSUPPLYUNIT
MITSUBISHIELECTRICCORPORATION
PAC-SC50KUA
Outdoor Unit Indoor Unit
TB7 TB3 ✻2
✻1
PUHY-P500YGM-A PFD-P500VM-E
G-50A
12V DC
M-NET
PAC-SC50KUA
UP
POWERRATING
MODEL
WEIGHT
SERIALNo. 2.11kg
POWERSUPPLYUNIT
MITSUBISHIELECTRICCORPORATION
PAC-SC50KUA

2
1-2. List of Possible Combinations of Indoor and Outdoor Units
✻1: Refer to the following pages for detailed specifications of each unit.
✻2:They were measured at operation under the following conditions:
<Cooling> Indoor:27˚CDB/19˚CWB Outdoor:35˚CDB
<Heating> Indoor:20˚CDB Outdoor: 7˚CDB/6˚CWB
Pipe length:7.5m, Height difference:0m
Model Name Indoor unit
Outdoor unit
Cooling Heating
System capacity kW 28.0 31.5
System Power input kW 9.3 9.1
System current A 16.7/15.9/15.4 16.4/15.5/15.1
10HP system
PFD-P250VM-E
PUHY-P250YGM-A
Cooling Heating
56.0 63.0
18.6 18.2
32.3/30.8/29.7 31.7/30.0/29.1
20HP system
PFD-P500VM-E
PUHY-P250YGM-A x 2
or PUHY-P500YGM-A
When using a PFD-P500VM-E as an indoor unit, connect 2 PUHY-P250YGM-A outdoor units to
each indoor unit and operate with a built-in remote control for the indoor unit.
At factory shipment, this model of indoor unit is designed and set to accommodate a single refriger-
ant 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 circuits.
✻3: Indicates TB7-type transmission line that allows the unit to communicate with the controller.
Outdoor Unit
PUHY-P250YGM-A
Indoor Unit
PFD-P500VM-E
TB7 TB3 ✻2
✻1
TB3
PUHY-P250YGM-A
TB7
✻3
G-50A
12V DC
M-NET
PAC-SC50KUA
UP
POWERRATING
MODEL
WEIGHT
SERIALNo. 2.11kg
POWERSUPPLYUNIT
MITSUBISHIELECTRICCORPORATION
PAC-SC50KUA
Two refrigerant circuits

(2) Indoor Unit
3
1-3. Unit 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 ✕Quantity
Motor output
Type
Motor output
Crankcase heater
Compressor
Refrigerant / Lubricant
External finish
High pressure protection
Inverter
Compressor
Fan
External dimension HxWxD
Protection
devices
Refrigerant
piping diameter High press. pipe
Low press. pipe
Noise level
Net weight
1,840 x 990 x 840
Propeller fan x 1
200
0.38 Hermetic
6.7
0.045 x 1
R410A/MEL32
Heat exchanger Salt resistant fin
Over current protection / Thermal protection
ø9.52 Flare (ø12.7 for over 90m)
ø22.2 Brazed
Pre-coated galvanized sheets (+ powder coating for -BS type) <MUNSEL 5Y 8/1 or similar>
4.15MPa
233
6.66.8 11.1/10.5/10.211.4/10.9/10.5
PUHY-P250YGM-A (-BS)
connected with PFD series PUHY-P500YGM-A (-BS) connected with PFD series
Over current protection / Over heat protection
Thermal switch
57/57
56.0 63.0
Cooling Heating Cooling Heating
1,840 x 1,990 x 840
Propeller fan x 2
400
0.38 x 2
8.2+5.3
0.045 x 2
ø15.88 Flare
ø28.58 Brazed
455
13.6 13.2
22.2/21.0/20.422.8/21.8/21.0
60/61
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 :
Outdoor :
Height difference : 0m
35˚CDB
7˚CDB/ 6˚CWB
<Cooling>
<Heating>
3N~380/400/415V(50Hz), 400/415V(60Hz)
PFD-P500VM-E
5.0
Power source kW
-
Power input
System capacity
A
m3/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
2.5
kW 28.0 31.5 56.0 63.0
5.3/5.0/4.9
160 120120 4.42.2
380
59
150
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
150
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
Noise level
Net weight
Cooling Heating ✻1✻1Cooling Heating
Note: *1. Heating can be used only by the indoor warming-up.
*2. At factory shipment, 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.
(1) Outdoor Unit

4
2. Capacity Curves
2-1. Cooling Capacity
0.7
0.8
0.9
1.0
1.1
1.2
1.3
1.4
-15 -10 -5 0 5 10 15 20 25 30 35 40 45
Indoor unit inlet temperature (˚CWB)
Indoor unit inlet temperature (˚CWB)
19
15
12
24
0.7
0.8
0.9
1.0
1.1
1.2
1.3
19
24
15
12
-15 -10 -5 0 5 10 15 20 25 30 35 40 45
Capacity correction coefficientInput Correction Coefficient
Outdoor unit inlet temperature (˚CDB)
Outdoor unit inlet temperature (˚CDB)
2-2. Cooling Input
✻The correction curves indicate the values measured at the point where the compressor was
operated at its maximum capacity.
✻indicates the standard value.

5
2-3. SHF Curves
Operation Temparature Range: Indoor : 12˚CWB~24˚CWB
Outdoor: -15˚CDB~43˚CDB
(RH : 30~80%)
Standard Point " " : Indoor : 27˚CDB/19˚CWB
Outdoor: 35˚CDB/-
0.4
0.5
0.6
0.7
0.8
0.9
1
30 40 50 60 70 80
RH (%)
SHF
130% 120%110%100% 90% 80% 70%
Standard Capacity Ratio
Standard Capacity Ratio
0.93
0.4
0.5
0.6
0.7
0.8
0.9
1
30 40 50 60 70 80
RH (%)
SHF
130% 120%110%100% 90% 80% 70%
35 45 55 65 75
Indoor Temperature 27˚CDB
35 45 55 65 75
Indoor Temperature 24˚CDB

6
2-4. 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.
•Cooling
Equivalent length = (Actual piping length to the farthest indoor unit) + (0.50 ✕number of bent on the piping)m
• How to obtain piping equivalent length
Piping equivalent length (m)
Capacity correction coefficient
0.7
0.8
0.9
1
0 20 40 60 80 100 120 140 160 180
2-5. Operation limit
Indoor temperature (˚CWB)
-15 0-5-10 5 1015202530354045
10
12
15
20
25
30
* The height between the Outdoor PUHY-P-YGM-A and Indoor could make the running
temperature range narrow. For details refer to P19, 7-1 Refrigerant Piping System.
Outdoor temperature (˚CDB)
•Heating
Outdoor temperature (˚CWB)
Indoor temperature (˚CDB)
30
25
20
15
10
5-20 -15 -10 -5 0 5 10 15 20 25 30 35 40 45 50

3. Sound Levels
3-1. Noise Level
7
1m
1m
Measured
point
Series Noise Level
(dB [Type A])
PFD-P250VM-E 59
PFD-P500VM-E 63
(1) Outdoor Unit
(2) Indoor Unit
Measured
point
1m
1m
Series Noise Level
(dB [Type A])
PUHY-P250YGM-A 57
PUHY-P500YGM-A 60/61
(50Hz/60Hz)

8
3-2. NC Curves
3-3. Fan Characteristics Curves
PFD-P250VM-E PFD-P500VM-E
: 50/60Hz, standard : 50/60Hz, standard
0
100
200
300
400
500
600
700
800
900
1000
130 140 150 160 170 180 190
Total static pressure (Pa)
Fan rotation speed
Internal
resistance
1200rpm
1100rpm
1000rpm
900rpm
800rpm
Output 3.7kW
( Output 2.2kW)
136
Internal resistance
(middle-high efficient filter )
184
Air volume (m3/min)
0
100
200
300
400
500
600
700
800
900
1000
250 270 290 310 330 350 370
Total static pressure (Pa)
255 272 318 345 368
Air volume (m3/min)
1100rpm
1200rpm
Fan rotation speed
Output 7.5kW
Output 5.5kW
1300rpm Internal resistance
(middle-high efficient filter )
800rpm
900rpm 1000rpm
Internal resistance
Standard
With a middle-high efficient filter
PUHY-P250YGM-A (External static
pressure 0Pa) PUHY-P500YGM-A (External static pressure 0Pa)
PFD-P250VM-E (External static
pressure 120Pa) PFD-P500VM-E (External static pressure 120Pa)
63Hz 125Hz 250Hz 500Hz 2000Hz1000Hz 4000Hz 8000Hz dB(A)
82.8 70.5 65.6 57,0 55.1 51.1 44.7 37.9 63
63Hz 125Hz 250Hz 500Hz 2000Hz1000Hz 4000Hz 8000Hz dB(A)
70.6 62.7 60.5 56.1 54.8 45.7 39.7 32.9 59
10
20
30
40
50
60
70
80
90
63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz
10
20
30
40
50
60
70
80
90
63Hz 125Hz 250Hz 500Hz 1000Hz 2000Hz 4000Hz 8000Hz
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
OCTAVE BAND PRESSURE LEVEL (dB) 0dB = 20µPaOCTAVE BAND PRESSURE LEVEL (dB) 0dB = 20µPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
OCTAVE BAND CENTER FREQUENCIES (Hz)
63 125 250 500 1000 2000 4000 8000
10
20
30
40
50
60
70
80
90
Approximate minimum
audible limit on
continuous noise
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
63Hz 125Hz 250Hz 500Hz 2000Hz1000Hz 4000Hz 8000Hz
dB(A)
62.5 58.5 55.5 53 49.5 49 49 43 57
50Hz 60Hz
OCTAVE BAND PRESSURE LEVEL (dB) 0dB = 20µPaOCTAVE BAND PRESSURE LEVEL (dB) 0dB = 20µPa
OCTAVE BAND CENTER FREQUENCIES (Hz)
OCTAVE BAND CENTER FREQUENCIES (Hz)
63 125 250 500 1000 2000 4000 8000
10
20
30
40
50
60
70
80
90
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
NC-70
NC-60
NC-50
NC-40
NC-30
NC-20
63Hz 125Hz 250Hz 500Hz 2000Hz1000Hz 4000Hz 8000Hz dB(A)
67
50Hz
60Hz
61.5 60.5 58 53.5 50.5 48 43 60
68 65 60.5 59 54 51.5 49 43.5 61