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
······························································
······························································
·····
·························································
·························································
·························································
·························································
·························································
····························
·························································
···································································
···································································
···································································
···········································
···········································
·································································
······················································
···
··············································
·································································
················
············································
·······························
················
···
···
·························
··········
·············································
······················
···············································
·······························

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

9
4. External Dimensions
PUHY-P250YGM-A Unit : mm
Note1.Use the opening at the bottom of the unit
when running the power supply line from the front or from the side of the unit.
Note2.Please refer to the next page for information
regarding necessary spacing around the unit and foundation work.
166
83100
44150
Y
Y
20
70
80
100
90
10
4080
135
280
134
553
494
8057
16065 768
37 117 117 37
15751840
11
235
16067
990
16
840
67 207 207 67
78
X
X
877
845(mounting pitch)16
45900(mounting pitch)45
265
ø53
12 5
Conn. pipe(Liquid) ø9.52 <Flare>
Conn. pipe(Gas) ø22.2 <Brazed>
(Mounting hole)
Air outlet
Air inlet
Air inlet
ø62 Knockout hole <Hole for power supply> Changeable to ø27,ø33 by using
attached conduit mounting plate <Accessory>
ø27 Knockout hole <Bottom hole for control wiring>
Knockout hole <Bottom piping hole>
Left side view
ø27 Knockout hole <Left side hole for control wiring>
Knockout hole <Left piping hole>
<Accessories> •Refrigerant (Gas) conn. pipe......1 pc.
(Already installed on the unit)
•Packing for conn. pipe................1 pc.
(Attached near the ball valve)
•Conduit mounting plate
ø33, ø27..............................1 pc.Each
•Tapping screw M4......................2 pcs.
Cross section Y –Y
Cross section X –X
2X2-14X20 0val hole
Top view
Front view
Knockout hole
Service panel
Refrig. service valve (Liquid) <Flare>
Refrig. service valve(Gas) <Flange>
Knockout hole <Front piping hole>
136

10
PUHY-P500YGM-A Unit : mm
Note1.Use the opening at the bottom of the unit
when running the power supply line from the front or from the side of the unit.
Note2.Please refer to the next page for information
regarding necessary spacing around the unit and foundation work.
44150
83
162
135
40
8910
37 115 115 37
134 100
280
80
80
20 70
494
145
553
1000
768
80
57
160
65
1840
1575
11
68
68 205 205
100
235
16067
78 265
45 1990 45950(mounting pitch)
877
840
16 16 845(mounting pitch)
950(mounting pitch)
512
ø53
Conn. pipe(Gas) ø28.58<Brazed> Conn. pipe(Liquid)
ø15.88<Flare>
YY YY
X
X
(Mounting hole)
Knockout hole <Bottom piping hole>
ø27 Knockout hole <Bottom hole for control wiring>
ø62 Knockout hole <Hole for power supply> Changeable to ø46,ø53 by using
attached conduit mounting plate <Accessory>
<Accessories> •Refrigerant (Gas) conn. pipe....1 pc.
(Already installed on the unit)
•Packing for conn. pipe......1 pc.
(Attached near the ball valve)
•Conduit mounting plate
ø53, ø46......1 pc.Each
•Tapping screw M4...2 pcs.
Air inlet
Air inlet
Air outlet
Cross section X –X
Cross section Y –Y
ø27 Knockout hole <Left side hole for control wiring>
Knockout hole <Left piping hole>
Left side view Front view
Knockout hole
Service panel
Knockout hole <Front piping hole>
Refrig. service valve (Liquid) <Flare>
Refrig. service valve(Gas) <Flange>
Top view
3X2-14X20 Oval hole

11
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 knook 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 knook out hole>
Air inlet
Control box 50
140
Hole for the control wiring <ø32 knook 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 knook 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
340
100
150
260
171
20
401
740

12
PFD-P500VM-E Unit : mm
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 ø9.52 braze No.1
Refrig. piping <gas> in 2 refrig. circuit system type P450:ø19.05 braze, type P560:ø22.2 braze No.1
Refrig. piping <liquid> ø15.88 braze
Refrig. piping <gas> ø28.58 braze
Hole for No.2 gas pipe connecting(ø42) in 2 refrig. circuit system
Hole for No.2 liquid pipe connecting(ø24) in 2 refrig. circuit system
Hole for liquid pipe connecting(ø34) Hole for No.1 liquid pipe connecting (ø24) in 2 refrig. circuit system
Bolt holes:8-ø18
Hole for No.1 gas pipe connecting(ø42) in 2 refrig. circuit system
Hole for gas pipe connecting(ø48)
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:ø19.05 braze, type P560:ø22.2 braze No.2
680
<2-ø32 knook out
hole>
<ø32 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(ø42) in 2 refrig. circuit system
Hole for No.2 gas side pipe connecting(ø42) 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 (ø24) in 2 refrig. circuit system
Hole for the power supply(ø60)
1950
780
Hole for gas side pipe connecting or No.2 liquid side pipe connecting(ø48)
in 2 refrig. circuit system
440
Air outlet
185
379
135
Refrig. piping <liquid> in 2 refrig. circuit system ø9.52 braze No.2
68
120
Hole for the control wiring <ø32 knook out hole>
Hole for the power supply <ø32 knook out hole>
220
150
81
Hole for the control wiring(ø60)
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

13
5. Electrical Wiring Diagrams
PUHY-P250YGM-A (Connected with PFD series)
*1
*1
–
~ ~+ ~
+ +
X01
Compressor
CN3D OPEN SHORT ON
OFF
CN3D 1-2P SHORT OPEN ON
OFF NIGHT MODE1-3P ON/OFF
Radiator panel temp. detect(Fan)
THHS5
CNCT
yellow orange red brown
A2A1
TH11
TH5
TH6
TH7
TH8
Z20
DC Current Sensor
DCCT
1 2 3 4
Power selection connector
CN41CN40 1 2 3 41 2 3 4
1 2 3 4
DCCT
5 9 1
1 2 2 3 4 1 6 5
CNINV
LED1 operation LED2 error
Compressor ON/OFF Trouble
Low pressure sensor
CNRS3A
High pressure sensor
CN3S red
CNVCC1
CN3D
SW1
Earth terminal
SW2SW3
SW4
LD1
ON ON
ONOFFOFF ONOFF ONOFF OFF
SW5
1
Radiator panel temp. detect (Compressor)
Control circuit board
10
2 1 5 6 9
13 14
SWU2
Address setting
SWU1
CN52C yellow
green
red X09
CNS2
blue CNS1
blue
3
CN20
CN21 blue
13
F02 250VAC 6.3A T
1 2 3 4 5
1 2 3
3
TB1
(Terminal Block)
Power source 3N~ 380/400/415V 50/60Hz
black red
52C1 DCL C2
red
14
DS1
(Diode stack)
white
black
10
CNDC2
N
IPM
P
C4
MC1
Gate amp board 1
ACCT
-W
9
ACCT
ACCT-U
X52
U V W
FAN control board
CNVDC
10
C1 R4
R3
R1 R2
ACNF1
(Noise Filter)
E
Filter board
CNFG
blue
L2
CNL1CNL2
CNOUT green CNIN
blue
C5
ZNR4
SWU3
0 1 2
CN15V1
CNDC1
black
CNDR1
bypass outlet temp.detect at Sub-cool coil
CNVCC1
CNAC2
MF1
CNFAN
red
SW2SW1
1 4
1 6
CNAC3
LED1 operation LED2 error
CNFG
blue
CNCT2 blue
black
CNTH
green
THHS1
red
7
CNRS1
Power circuit board 1
CNDC2 CN15V2 CNDR2
TB3
(Terminal Block)
M1 M2 S M2 M1
TB7
(Terminal Block)
1
1 2
shield
F02 700VDC 2A T
red white black blue
red white black
blue
red black
Motor
(Compressor)
F01 250VAC 2A T
Refer to the service handbook about the switch operations.
CENTRAL CONTROL TRANSMISSION LINE
CNRS2
Inverter controller box
Function device
liquid outlet temp.detect at Sub-cool coil Discharge pipe temp. detect OA temp.detect Pipe temp.detect(Hex outlet)
Choke coil(Transmission) Thermistor High pressure switch 4-way valve Electronic expansion valve (SC coil) Solenoid valve (Heat exchanger capacity control) Solenoid valve (Discharge-suction bypass) Magnetic contactor (Inverter main circuit) Crank case heater(Compressor)
Z20 L1,L2 63LS
DC reactor (Power factor improvement)
63HS 63H1 THHS1 TH5
CN35
<Symbol explanation>
TH11 TH8 LEV1
1THHS5
L3 L2
CNTH
green
1 2
2
3 2
1
1 2
ON OFF
4
ON OFF
1 2
4
8
3
L1
1
1
L3 L2 L1
2
1
1
2
2
1 2
3
1 2 3 4 5
1
9
1
N
1 2 3 4 1 2 3 4 1 9
2
1 3 2
1
CNRS3B
CNTR
Symbol
CN38
black
SV5b 21S4a,b CH11 MF1 52C1 DCL SV1 ACCT
1
Name
3
63H1
INDOOR/OUTDOOR TRANSMISSION LINE
CN04
AC Current Sensor
1
12V
CN51
2
1
W
3
2
V
Function setting
5
1
2
3
1 2 3
4
3
CH11
X03 X08
CN32
X02
CN33
CN36
SV 5b
2 1
21S 4a 21S
4b
2 7 1 7 8 1 3 1
1
10
1
10
1
10
1
1
10
3 2
N
L3
F01 250VAC 6.3A T
red
white
black
CNTYP5
CNH CNTYP4
CN01 CNL
black
CNTYP1
red CN02
1
R23
63HS
R22
63LS
7
2 1 632 1 3 2 12 1
2 1
U
CNLVB
red
detection
circuit
LEV1
7
L1
5412
2
332
1
black
white
red
Function setting
detection
circuit
6 5 4 1 3
LD2
Maintenance setting
8
N
red
white
blue
4
2
4 3 2
3
1
8 7 6 5
white
detection
circuit
MF
Fan motor
(Heat exchanger)
W
1 3 2
TH7
SV1
shield
PE
L1
SW4-7:OFF (Compressor ON/OFF and NIGHT MODE)
TH6
8
1
1
V U
X11
123
NOTE:The broken lines indicate field wiring.
X01
*1: Function according to switch operation. (SW4-7,CN3D 1-2P,and CN3D 1-3P)
1
52 C1
2
Fan motor (Radiator panel)
T01
(Transformer)
black
Compressor ON/OFF NIGHT MODE
SNOW
1
L2
1

14
PUHY-P500YGM-A (Connected with PFD series)
*1
*1
black
white
red
LEV1
NOTE:The broken lines indicate field wiring.
ON/OFF Compressor
SHORT CN3D 1-2P1-3P CN3D OPEN ON
OFF OPEN
SHORT ON
OFF NIGHT MODE
*1: Function according to switch operation. (SW4-7,CN3D 1-2P,and CN3D 1-3P)
SW4-7:OFF (Compressor ON/OFF and NIGHT MODE)
Gas pipe temp.detect (Hex outlet)
TH2
Magnetic contactor(Fan motor)
52F
Overload relay(No.2Compressor)
51C2
Magnetic contactor(No.2Compressor)
52C2
DC Current Sensor
DCCT
<Symbol explanation>
Symbol Name
ACCT DCL 52C1 MF3 CH11,12 21S4a,b,c SV1,3 SV5b,c LEV1 TH11,12 TH5 TH6 TH7 TH8 THHS1 63H1,2 63HS 63LS L1,L2 Z20
AC Current Sensor DC reactor (Power factor improvement) Magnetic contactor (Inverter main circuit) Solenoid valve (Discharge-suction bypass) Solenoid valve (Heat exchanger capacity control) Electronic expansion valve (SC coil) Fan motor (Radiator panel) Crank case heater(Compressor) 4-way valve Thermistor Discharge pipe temp. detect
Pipe temp.detect(Hex outlet)
OA temp.detect
liquid outlet temp.detect at Sub-cool coil bypass outlet temp.detect at Sub-cool coil
Radiator panel temp. detect (Compressor)
High pressure switch High pressure sensor Low pressure sensor Choke coil(Transmission) Function device Earth terminal
THHS5
Radiator panel temp. detect(Fan)
Motor
(Compressor)
Fan motor (Heat exchanger) Fan motor (Heat exchanger)
black white red
Motor
(Compressor)
black white red
white
blue
white
red
power selection connector
detection
circuit
detection
circuit
detection
circuit
Inverter controller box
red
white
black
CNHCNL
black
163HS
63LS
332
black
white
red
2
2
3
1
123
1
black
red
DS
(Diode stack)
black
white
red
Function setting
LED1 operation LED2 error
Power circuit board
Gate amp board
Filter board
T01
(Transfomer)
LED1 operation LED2 error
FAN control board
Compressor ON/OFF Trouble
Compressor ON/OFF NIGHT MODE SNOW
Refer to the service handbook about the switch operations.
Address setting
Function setting Maintenance
setting
Control circuit board
TB3
(Terminal Block)
TB7
(Terminal Block)
TB1
(Terminal Block) ACNF
(Noise Filter)
M2 M1 M2 M1
shield
shield
CENTRAL CONTROL TRANSMISSION LINE INDOOR/OUTDOOR TRANSMISSION LINE Power source 3N~ 380/400/415V 50/60Hz
L3
N
L1 L2
blue black white red
blue
N
1 9 2 19
1
5 6
10
9
14 13 10
14 13
9 6 5 1 2
black red red
black
10
1
SW5
OFFOFF ONOFF ON
OFF OFF ON ON
ON
LD1
SW4 SW3 SW2 SW1
10
1
10
1
10
1
10
1
DCCT
L3
L2
1 2
S
F12 AC660V 50A F
F11 AC660V 50A F
red white black
U
17
WV
MC2
11
321
F01 250VAC 2A T
CNAC2CNCT
12
N
R2
C1 C2
R1
R4 R3 CNDC1
black
CN15V1
CNDR1
CNDC2
ACCT-W
ACCT-U
ACCT
CNDR2 F02 700VDC 2A T CN15V2
THHS1
CNTH green
CNFG
blue
CNDC2
CNCT2
blue CNVCC1
CNFAN
red
CNRS1
CNL1CNL2
CNFG
blue
CNIN
blue
CN41
CNOUT green
CNINV
CN21
blue
CNS1
blue
CN20
F02 250VAC 6.3A T
CN40
F01 250VAC 6.3A T
CNVDC
CNS2
blue
CNRS3B
CNVCC1
CNRS3A
CN51
CN3S
red
8
2 1 0
SWU3 SWU1SWU2
CN52C yellow
CN32 CN33 CN34 red CN36 CN35 green
CNTYP5
CNTYP4
R23
R22
CN01
TH11
CNTYP1
red
black
CNTR
CNRS2
4
Z20
L3
3 2
8 11
8
51C2
6 4 2
red
3412
U
43
MF2
3
X09
L1
52C1 DCL N
IPM
P
C4
MC1
V
X52
U
E
C5
ZNR4
X01
1 8
W
2
3 2
X07
1
CNRT1
1
CN13
TH12
52
C1
5 1 3 2
1 7
321456
12V
4
3 1
2132121
2
7
154312 321
1
L3 L2
4
4 5 3 1 2
CN3D
2 3 1
3 1
X03
1 3 2 1 2 3
X02 X08
W V
L1 U
L2 L3
63H1
52F
51C2
2 3 4 1 3 2
L1
12
12 1
8
5 6 1
X05 X06
9 4 6
314
2
1
14 4
SW1
OFF
2 4 3
1
ON 6
3412
2
W
SW2
OFF 1
ON 4
V
1
253412
2
1
3
4 1
1
4
L2
3
CN02
21
78
CNOUT2
56
3 2
CNRT2
CNCH
CN52F
CN51C2
4 5 3 2 1
5432
2
11
7
6
X2
X3
5 4
X1
1
1
1 3 2
2
7
CN52C2
blue
3
5 43
2
52
C2
1
3 1 2
52C2
TH5
TH6
TH7
21S 4a
SV1
SV3
PE
A1 A2
gray yellow
CH12
A2 A1
13 14
brown purple red
orange
63H2
red
95 96
white black
52C2
21S 4c
V W
6
CNOUT1
yellow
2 1 3 2 1 3
3 2 1
CN05
SV 5c
CN04
52F
blue
A2
L1 L2
3
21
Relay board
orange yellow red brown
THHS5
4
A1
7 4 1
CNTH
green
4
2 1
3 2 1
X01
+ +
~ ~
–
~
+
black
MF3
CNLVB
red
SV 5b
CNAC3
2 1
TH8
red white
21S 4b
CH11
3 2 1
MF1
W V U
3 2 1
1
3 2
LD2
1U
CN38
5
3
black
2
2
yellow
L1

15
PFD-P250VM-E
Note:1. The dotted lines show field wiring.
2. The address setting of the indoor unit should always be odd. 3. The outdoor unit to which the indoor unit is connected with the transmission line,
the address of the outdoor unit should be the indoor unit +50.
4. Mark indicates terminal bed, connector, board insertion connector
or fastening connector of control board.
5. Use a contactor for low voltage. (with voltage of DC12V maximum current is 1mA)
0
F
E
D
C
B
A
9
0
9
8
7
6
5
4
3
2
1
9
1
2
3
4
5
6
7
8
0
8
7
6
5
4
3
2
1
2121
7123456
CN7V
CN24 CN25
X11
SW8
SW4
SW11
(1st digit)
SW12
(2nd digit)
SW14
SW7 SW2 SW1SW3
SWC SW5
Address (odd)
1234561232121212112
T
CN3T
3
CN28 CN31CN29CN20 CN21 CN60CN22
Z3
33P1
97513131311
CNT CND
CN90CN33
CNP
5432
165432CN51
1
CN52
Dehumidify
ZNR901
DSA1
CN3A
ZNR1
F901 X06 X05 X04
3 2 1 2
CN32
3 2 1
X01
CN2M
I.B.
1
X07
Z1
Inside section of control box
RC
2 12
1
TB15
Failure output Distant location on/off <no voltage or current> Status output Distant location on/off <with voltage and current> Power supply DC30V, AC100/200V
Switch(normal/local)
Power supply DC12~24V
Power supply 380/400/415V(50Hz) 400/415V(60Hz)
DC24~30V Indoor unit Control wiring
LED display(failure)
LED display(status)
LED display(power supply)
3N~
LED display(check)
SW9
2 3 4 5 1 5 4 3 2 1
B2 B1 BC A2 A1 AC
5 4 3 2 1
C
IFB
3
L3
A1
S
B1
L2
L1
X11 1
2 2 1 6 5 1 2
PE
N
F1
3 4 5 6
3 1
ZNR1
3 1CN1
DSA1
PE
TB23 TB21
L
L
TB22
CN53
TB2
S.B.
CN54
L3
TB5
SHIELD
L2 L1 L4
FAN over current detection
51F
Z1
ZNR2
52F Z3
51F 52F
MF
TH24 TH21 TH22 TH23
6 5 4 3 2 1
LEV
SYMBOL NAME
DSA1 Surge absorber
LED display (power supply)
F901 ZNR1, ZNR2, ZNR901 MF I.B. S.B. IFB TB2 TB5 TB15 TB21 TB22 TB23 F1 T LEV 52F 51F 33P1 RC L4 L3 L2 L1 Z3 Z1 X11 SWC(I.B.) SW14(I.B.) SW12(I.B.) SW11(I.B.) SW9 SW4(I.B.) SW3(I.B.) SW2(I.B.) SW1(I.B.)
Surge absorber board Switch (outlet/inlet temp.control) Float switch Fuse<6-3/6A> Varistor Transformer Electronic linear expan.valve Contactor(fan I/D) Over current relay (fan I/D) Fuse<5A> Thermistor (inlet temp.detection) Switch (connection No.set) Switch (for mode selection) Switch (for capacity code) Switch (for mode selection) Switch (for model selection) Auxiliary relay(check) LED display (failure) LED display (status) LED display (check) Switch (normal/local)
TH24 TH23 TH22 TH21
Switch (1st digit address set) Switch (2nd digit address set) Fan motor Indoor controller board Power source terminal bed Transmission terminal bed External input/output board Transmission terminal bed MA Remote controller Terminal bed for distant location on/off <With voltage and current> Terminal bed for distant location on/off <No voltage or current> Auxiliary relay(fan failure detection) Auxiliary relay(fan) Thermistor (piping temp.detection/gas) Thermistor (piping temp.detection/liquid) Thermistor (outlet temp.detection) Terminal bed for distant location display
External input adapter (PAC-SA88HA)
CN52 5(green)
1(brown) Z
Indoor unit contorol board Relay circuit
The signal input of the dehumidify order is to connect wiring referring to the bottom figure.
SW
Power
Distant control panel
SW:Defumidify order
Z:Relay <Note5>
(field supply and construction)
Z

16
PFD-P500VM-E
1.The dotted lines show field wiring. 2.It is wiring for 1 refrigerant system at the time of shipping.
Change wiring and SW2, 3, 4 (No.1&No.2) as this figure in field when you change it to 2 refrigerant circuit
3.Set up the address of No.1 board in the odd number, and set up the
address of No.2 board in the even number. But, set up the address of the No.2 board in the No.1 board +1.
4.The outdoor unit to which the indoor unit is connected with the
transmission line, the address of the outdoor unit should be the indoor unit +50.
5.Set up the zone No. (SW14) from 1 to 5 when you connect a concentration
controller. (Install an indoor unit within 20 units in the all 5 zone.)
6.Mark indicates terminal bed, connector, board insertion connector
or fastening connector of control board.
7.Use a contactor for low voltage. (with voltage of DC12V maximum current is 1mA)
Note:
SW8
SW4 SW7 SW2
SWC SW5
0
F
E
D
C
B
A
9
0
9
8
7
6
5
4
3
2
1
9
1
2
3
4
5
6
7
8
0
8
7
6
5
4
3
2
1
6574321CN24 CN25
122
1
X11
CN7V
Address (odd)
SW11
(1st digit)
SW12
(2nd digit)
SW14
No.1
CN51
CN52
Dehumidify
13
45
12345 2
ZNR901
DSA1
ZNR1
F901 X06 X05 X04X01 X07
CN3A
CN32
CN2M
I.B.1
3 2 1 2 3 2 1 1
591513731
CNT CND CN90
13
CN33CNP
31
Z1
T
CN3T
31
CN28
21 CN31
12321
CN29 3222
1
11
CN20 CN21 CN60
CN22
21 654
Z3
33P1
SW1SW3
TH24-1 TH21-1 TH22-1 TH23-1
LEV2 LEV1
1 2 3 4 5 6 6 5 4 3 2 1
AD.B.
6543 126543 12
6543 12
LEV1A
LEV1B
LEV1
2 1
Inside section of control box
RC
2 1
TB15
A1
S
B1
2 1 6 5
DC24~30V No.1 Indoor unit Control wiring
LED display(No.1 failure) LED display(status)
TB5-1
SHIELD
L3 L1
1 3
ZNR1
3 1
CN1
DSA1
S.B.
3
L3 L2
L1
1 2
N
F1
Power supply 3N~ 380/400/415V(50Hz) 400/415V(60Hz)
LED display(power supply)
PE
TB2
L5
3 4 5 6
Switch(normal/local) SW9
No1.Failure output Distant location on/off <no voltage or current> No1.Status output Distant location on/off <with voltage and current> No2.Status output No2.Failure output Power supply DC30V, AC100/200V Power supply DC12~24V
LED display(No.2 failure)
DC24~30V No.2 Indoor unit Control wiring
LED display(check)
L4 L2
L
L
LL
5 4 3 2 1
S
A2 B2
B2 B1 BC A2 A1 AC
5 4 3 2 1
C
IFB
CN54 TB22 CN53 TB21
TB23
SHIELD
TB5-2
3 4
X11 1
2
PE
X12
<note2>
CN3A
1
CN2M
1 2 3
CN32
2 1 3 2
1 2 3 1
I.B.2
54321 CN52 54321 CN51
Dehumidify
ZNR901
F901
ZNR1
DSA1
X01 X07 X04X05X06
CNP CN33 CN90
CND
CNT
CN3T
12
CN22 CN21CN20
1122CN29
12321
CN31
12
CN28 531
CN60 1234563113 731 51139
Z2
<note2>
33P2
T
Z3
CN25CN24
12 CN7V
1234567
21
X12
SW5
SWC SW12
(2nd digit) SW11
(1st digit)
SW8
Address (odd)
SW3 SW1SW2SW7SW4
SW14
0
F
E
D
C
B
A
9
0
9
8
7
6
5
4
3
2
1
9
1
2
3
4
5
6
7
8
0
8
7
6
5
4
3
2
1
No.2
FAN over current detection
51F
Z1
ZNR2
Z2
52F Z3
TH24-2 TH21-2 TH22-2 TH23-2
51F 52F
MF
NAME
SYMBOL
Surge absorber
DSA1 L5
ZNR1, ZNR2, ZNR901
LED display (No.2 failure) LED display (status) LED display (check) LED display (power supply) MA Remote controller
RC TB21 TB15 TB5-1, -2 TB2 IFB S.B. AD.B. I.B.1, I.B.2 MF
Surge absorber board Switch (outlet/inlet temp.control) Float switch Varistor Transformer Electronic linear expan.valve Contactor(fan I/D) Over current relay (fan I/D) Thermistor (inlet temp.detection) Switch (connection No.set) Switch (for mode selection) Switch (for capacity code) Switch (for mode selection) Switch (for model selection) Auxiliary relay(check) LED display (No.1 failure) Switch (normal/local)
TH24-1, TH24-2 SW1(I.B.) SW2(I.B.) SW3(I.B.) SW4(I.B.) SW11(I.B.) SW12(I.B.) SW14(I.B.) SWC(I.B.) X11, X12 Z1, Z2 Z3 L1 L2 L3 L4 SW9 TH23-1, TH23-2 TH22-1, TH22-2 TH21-1, TH21-2 33P1, 33P2 51F 52F LEV1, 2 T F1 F901 TB23 TB22
Switch (1st digit address set) Switch (2nd digit address set) Fan motor Indoor controller board Adapter board Power source terminal bed Transmission terminal bed External input/output board Transmission terminal bed Terminal bed for distant location on/off <With voltage and current> Terminal bed for distant location on/off <No voltage or current> Auxiliary relay(fan failure detection) Auxiliary relay(fan) Thermistor (piping temp.detection/gas) Thermistor (piping temp.detection/liquid) Thermistor (outlet temp.detection) Terminal bed for distant location display Fuse <6.3/6A> Fuse <5A>
(field supply and construction)
Power
SW
Indoor unit contorol board
Z
1(brown) 5(green)
CN52
The signal input of the dehumidify order is to connect wiring referring to the bottom figure.
Relay circuit
External input adapter (PAC-SA88HA)
SW:Defumidify order
Z:Relay <Note7>
Distant control panel
Z
How to connect in case of 2 refrigerant circuit.
Remove the LEV1B connector from AD.B. board, and connect it to CN60 of I.B.2 board.
Connect a connector to CN3A, CN2M of I.B.2 board.
<note2>
6 5 4 3 2 1
CN60
654321
CN3A CN2M
I.B. 2
1 2 3 2 1
LEV2
<note2>
How to set up to SW2, 3, 4. (In case of 2 refrigerant circuit)
PFD-P500VM-E
(at the time of shipping)
ON
654321
ON
65432110987
ON
54321
ON
5432110987
ON
654321
ON
654321
2 refrigerant circuit 1 refrigerant circuit
SW2 SW3 SW4

17
6. Refrigerant Circuit Diagram And Thermal Sensor
PUHY-P250YGM-A
21S4a
21S4b
COMP
O/S
CJ1
CJ2
63HS
63LS
63H
SV1
HEX F HEX B
SV5b
TH8
TH11
TH5
TH6
TH7
CP2 ST8
LEV1
SCC ST4
ST3
CP1
Drier
ST7 ST6
ACC
BV1
BV2
ST1 ST2

18
PUHY-P500YGM-A
21S4a21S4c21S4b
TH6
CP2 CP1
TH11 TH12
COMP
2
Oil
Tank
COMP
1
O/S O/S
CJ3
CJ1
63H2
63H1
63HS
ST7
ST6
ST5
SV1
SV3
CV1 CV2
HEX2b
(B)
HEX1b
(F)
TH5
TH8
SCC
CP3
TH7
ST9 Drier
LEV1 ST8
SV5c
SV5b
HEX2a
(B)
HEX1a
(F)
ST2
ST13 ST12 ST11 ST10
CJ2
63LS
BV2
ACC
BV1
ST1