Mitsubishi Electric PKFY-P63VFM-E Operating manual

TECHNICAL & SERVICE MANUAL
CONTENTS
1. SAFETY PRECAUTION····························2
2. PART NAMES AND FUNCTIONS ············6
3. SPECIFICATIONS·····································8
4. OUTLINES AND DIMENSIONS··············11
5. WIRING DIAGRAM·································13
6. REFRIGERANT SYSTEM DIAGRAM ····14
7. TROUBLE SHOOTING···························15
8. DISASSEMBLY PROCEDURE···············22
9. PARTS LIST············································25
10. RoHS PARTS LIST·································28
<Indoor unit>
[Model names] [Service Ref.]
PKFY-P63VFM-E PKFY-P63VFM-E
PKFY-P100VFM-E PKFY-P100VFM-E
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
No. OC356
REVISED EDITION-A
Indoor unit
July 2006
Note:
•This manual describes only
service data of the indoor
units.
•RoHS compliant products
have <G> mark on the spec
name plate.
•For servicing of RoHS com-
pliant products, refer to the
RoHS Parts List.
Revision:
• RoHS PARTS LIST is added.
•Some descriptions have
been modified.
•Please void OC356.
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2
1SAFETY PRECAUTION
[2] Refrigerant recharging
(1) Refrigerant recharging process
1Direct charging from the cylinder.
·R407C cylinder are available on the market has a syphon pipe.
·Leave the syphon pipe cylinder standing and recharge it.
(By liquid refrigerant)
(2) Recharge in refrigerant leakage case
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release the refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
[1] Cautions for service
·After recovering the all refrigerant in the unit, proceed to working.
·Do not release refrigerant in the air.
·After completing the repair service, recharge the cycle with the specified amount of
liquid refrigerant.
Cautions for units utilizing refrigerant R407C
CAUTIONS RELATED TO NEW REFRIGERANT
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Use ESTR , ETHER or HAB as the lubricant to
coat flares and flange connection parts.
If large amount of mineral oil enter, that can cause
deterioration of refrigerant oil etc.
Use liquid refrigerant to seal the system.
If gas refrigerant is used to seal the system, the composition
of the refrigerant in the cylinder will change and performance
may drop.
Do not use a refrigerant other than R407C.
If another refrigerant (R22, etc.) is used, the chlorine in the
refrigerant may cause the lubricant deterioration.
Use a vacuum pump with a reverse flow check valve.
The vacuum pump oil may flow back into the refrigerant
cycle and cause the lubricant deterioration.
Store the piping to be used during installation
indoors with keep both ends sealed until just
before brazing.
(Store elbows and other joints in a plastic bag.)
If dust, dirt, or water enters the refrigerant cycle,
deterioration of the oil and compressor trouble may result. Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Gravimeter
Unit
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3
[3] Service tools
Use the below service tools as exclusive tools for R407C refrigerant.
No. Tool name Specifications
1Gauge manifold ·Only for R407C.
·Use the existing fitting SPECIFICATIONS. (UNF7/16)
·Use high-tension side pressure of 3.43MPa·G or over.
2Charge hose ·Only for R407C.
·Use pressure performance of 5.10MPa·G or over.
3Electronic scale
—
4Gas leak detector ·Use the detector for R134a or R407C.
5Adapter for reverse flow check. ·Attach on vacuum pump.
6Refrigerant charge base.
—
7Refrigerant cylinder. ·For R407C ·Top of cylinder (Brown)
·Cylinder with syphon
8Refrigerant recovery equipment. —
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4
Cautions for units utilizing refrigerant R410A
Store the piping to be used during installation
indoors and keep both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Keep the tools with care.
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
If dirt, dust or moisture enter into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enter, that can cause deterio-
ration of refrigerant oil etc.
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
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5
[1] Cautions for service
(1) Perform service after collecting the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Gravimeter
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Specifications
1Gauge manifold ·Only for R410A
·Use the existing fitting specifications. (UNF1/2)
·Use high-tension side pressure of 5.3MPa·G or over.
2Charge hose ·Only for R410A
·Use pressure performance of 5.09MPa·G or over.
3Electronic scale
4Gas leak detector ·Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check ·Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder ·Only for R410A Top of cylinder (Pink)
Cylinder with syphon
8Refrigerant recovery equipment
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6
PART NAMES AND FUNCTIONS
2
● Indoor Unit
PKFY-P63VFM-E
PKFY-P100VFM-E
Air intake
Room air is suctioned
in here. (Removes dust and dirt from the intake air.)
Filter Air intake grille
Air outletAir outlet
Auto vane
Air flow can be changed to horizontally
by moving the Guide vane to the left or
right.
Guide vane
● Operation buttons
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Set Temperature buttons
Down
Up
Timer Menu button
(Monitor/Set button)
Mode button (Return button)
Set Time buttons
Back
Ahead
Timer On/Off button
(Set Day button)
Opening the
door.
ON/OFF button
Fan Speed button
Filter button
(<Enter> button)
Test Run button
Check button (Clear button)
Airflow Up/Down button
Louver button
( Operation button)
To preceding operation
number.
Ventilation button
(Operation button)
To next operation number.
On the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Wired remote controller
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7
●Display
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
˚F˚C
˚F˚C
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
Identifies the current operation
Shows the operating mode, etc.
* Multilanguage display is sup-
ported.
“Centrally Controlled” indicator
Indicates that operation of the re-
mote controller has been prohib-
ited by a master controller.
“Timer Is Off” indicator
Indicates that the timer is off.
Temperature Setting
Shows the target temperature.
Day-of-Week
Shows the current day of the week.
Time/Timer Display
Shows the current time, unless the simple or Auto Off
timer is set.
If the simple or Auto Off timer is set, shows the time
remaining.
“Sensor” indication
Displayed when the remote controller
sensor is used.
“Locked” indicator
Indicates that remote controller but-
tons have been locked.
“Clean The Filter” indicator
Comes on when it is time to clean the
filter.
Timer indicators
The indicator comes on if the corre-
sponding timer is set.
Up/Down Air Direction indica-
tor
The indicator shows the direc-
tion of the outcoming airflow.
“One Hour Only” indicator
Displayed if the airflow is set to
weak and downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off after one
hour, at which time the airflow di-
rection also changes.
Room Temperature display
Shows the room temperature.
Louver display
Indicates the action of the swing
louver. Does not appear if the
louver is stationary.
(Power On indicator)
Indicates that the power is on.
Fan Speed indicator
Shows the selected fan speed.
Ventilation indicator
Appears when the unit is running in
Ventilation mode.
Caution
●Only the Power on indicator lights when the unit is stopped and power supplied to the unit.
●If you press a button for a feature that is not installed at the indoor unit, the remote controller will display the “Not Available”
message.
If you are using the remote controller to drive multiple indoor units, this message will appear only if he feature is not
present at the parent unit.
●When power is turned ON for the first time, it is normal that “PLEASE WAIT” is displayed on the room temperature indica-
tion (For max. 2minutes). Please wait until this “PLEASE WAIT” indication disappear then start the operation.
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8
SPECIFICATIONS
3
3-1. SPECIFICATION
Input
Current
Type ✕ No.
Air flow High - Low
External static pressure
Fan motor output
Item
Power source
Cooling capacity
Heating capacity
Exterior <munsell symbol>
Dimensions
Heat exchanger
Fan
Insulator
Air filter
Pipe dimensions
Drain pipe dimension
Noise level High - Low
Product weight
Unit
[,V,Hz
kW
kW
kW
kW
A
A
—
mm
mm
mm
—
—
k/min
Pa
kW
—
—
[mm(in.)
[mm(in.)
[mm
dB
kg
Cooling
Heating
Cooling
Heating
Height
Width
Depth
Gas side
Liquid side
7.1
8.0
340
1,400
235
20 - 15
0.04
15.88(5/8")
9.52(3/8")
45 - 39
24
PKFY-P63VFM-E
PKFY-P100VFM-E
0.14
0.14
0.64
0.64
0.12
0.12
0.55
0.55
11.2
12.5
340
1,680
235
28 - 22
0.07
15.88(5/8") : R410A / 19.05(3/4") : R407C/ R22
9.52(3/8")
46 - 41
28
Electric
characteristic
Single phase, 220-230-240V, 50Hz / 220V, 60Hz
Plastic , white : <3.4Y 7.7/0.8>
Cross fin(Aluminum plate fin and copper tube)
Line flow fan ✕2
0
Polyethylene sheet
PP Honeycomb fabric
Drain socket (Accessory) O.D. 20 <PVC pipe VP-20 connectable>
Note : Rating conditions (JIS B8616)
Cooling : Indoor D.B. 27°C W.B. 19.0°C
Outdoor D.B. 35°C W.B. 24°C
Heating : Indoor D.B. 20°C
Outdoor D.B. 7°C W.B. 6°C
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9
3-2. ELECTRICAL PARTS SPECIFICATIONS
Room temperature thermistor
Liquid pipe temperature thermistor
Gas pipe temperature thermistor
Fuse
(Indoor controller board)
Fan motor
(with inner-thermostat)
Fan motor capacitor
Vane motor
Linear expansion valve
Power supply terminal block
Transmission terminal block
MA remote controller
terminal block
Dew prevention heater
Symbol
TH21
TH22
TH23
FUSE
MF
C1
MV
LEV
TB2
TB5
TB15
H2
PKFY-P63VFM-E
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
Resistance 0°C/15kΩ, 10°C/9.6kΩ, 20°C/6.3kΩ, 25°C/5.2kΩ, 30°C/4.3kΩ, 40°C/3.0kΩ
250V 6.3A
OFF 130±5;
MP 35 EA DC12V
(L, N, ;) 330V 30A
(M1, M2, S) 250V 20A
(1,2) 250V 10A
28.8W / 240V
Service Ref.
Parts name PKFY-P100VFM-E
Inner-thermostat
DC12V Stepping motor drive
Port dimension [5.2 (0 ~ 2,000pulse)
DC12V Stepping motor drive
Port dimension [3.2 (0 ~ 2,000pulse)
D10A4P70MS
220-230-240V / 50Hz , 220V / 60Hz
4pole Output 70W
D094P40MS
220-230-240V / 50Hz, 220V / 60Hz
4pole Output 40W
2.0= 440V 3.0= 440V
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10
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PKFY-P63VFM-E High
Low 45
SPL(dB)
39
LINE
NOTCH
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
TERESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB(0dB=0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PKFY-P100VFM-E High
NOTCH
Low 46
SPL(dB)
41
LINE
UNIT WALL
1m
1m
MICROPHONE
3-3. NOISE CRITERION CURVES
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11
OUTLINES AND DIMENSIONS4
Unit : mm
235
45
235
45
235
45
235
62.5
13
58
42
340
197
Top
Front Right side
Left side 1400
1090 Air intake 235
C
Knock out hole for right piping Refrigerant pipe. Drain pipe
Knock out hole for left piping
Drain hose for left-hand side piping Drain hose
Lower side Auto vane
(Gas pipe) Drain hose
Bolt
Gas pipe
15 or less
(Liquid pipe)
Liquid pipe 9.52(3/8F) Gas pipe 15.88(5/8F)
Liquid pipe
A
30
32
39 98
37
74
439
100
30 37
74
4
2980
280
3030
18430
60
10
39
37
65
100
AB C
Knock out hole for piping
25
1110 183
240
B
1120 552
55 120 107
111
Air outlet
552 Air outlet
Change vane (manual)
Under panel Removable at left-hand side piping Knock out hole for under-piping
Refrigerant pipe. Drain pipe
Rear piping opening
Range for left rear piping opening
12-ø6 hole for tapping screw
66-ø6 hole for tapping screw
Wall fixture
Unit center
32-ø12 hole for bolt 225
18 18 91
900
990 455 285
245
19
240 280 314
610 90
Drainage range on left-hand side Drainage range
on right-hand side
10 91=(910)
180
PKFY-P63VFM-E
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12
Unit : mm
45
235
45
235
45
235
45
235 235
62.5
13
58
42
340
197
Top
Front Right side
Left side 1680
1370 Air intake 235
C
Knock out hole for right piping
Knock out hole for left piping
Drain hose for left-hand side piping Drain hose
Drain hose
Lower side
Auto vane
(Gas pipe)
Bolt
Gas pipe
15 or less
(Liquid pipe)
Gas pipe [15.88(5/8F)or [19.05(3/4F)
Liquid pipe [9.52(3/8F)
Liquid pipe
A
30
32
39 98
37
74
439
100
30 37
74
4
2980
280
3030
18430
60
10
39
37
65
100
AB C
Knock out hole for wiring
25
1110 183
240
B
1400
55 120 102
111
694 Air outlet 694 Air outlet
Change vane (manual)
Under panel
(Removable at left-hand side piping)
Knock out hole for under-piping Refrigerant pipe. Drain pipe
Rear piping opening
Range for left rear piping openingRange for left rear piping opening
12-ø6 hole for tapping screw
84-ø6 hole for tapping screw
Wall fixture
Unit out line Unit center
41-ø12 hole for bolt 295 225
18 18 91
900
1270 595 285
245
19
240 280 314
750 90
Drainage range on right-hand side
13 91=(1183)
180
Drainage range on left-hand side
PKFY-P100VFM-E
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13
WIRING DIAGRAM
5
Mode selection
A.B
SW12
SW11
SW1
SW14
SW5
SWC Option selector
Connection No.
Address setting 2nd digit
Address setting 1st digit
Voltage selection
Switch
Circuit board
X1
H2
(WHT)
DRAIN
CN31
(BLU)
CNP
X1
OFF 109876
ON
OFF 12345
P100
P63 109876
ON
OFF 12345
654321
ON
ON
OFF 123456
5321
OFF
ON
ON
OFF 12345
4
SW4
Power supply for MA-Remote controller
on → lamp is lit
Main power supply (Indoor unit : 220-240V)
power on → lamp is lit
LED on indoor board for service
Power supply for
MA-Remote controller
Function
Main power supply
Meaning
LED2
LED1
Mark
240V
220V SW5
1
~ 220V 60Hz
POWER SUPPLY
~ 220-240V 50Hz
FUSE(15A)
BREAKER
(15A)
PULL BOX
TO NEXT INDOOR UNIT
<fig : w1>
CONTROLLER
TO MA-REMOTE
Models SW2 SW3
TH21
54321
12345678910
6
LEV
4
123456
8
ON
OFF12345678910
SW1
SW12 SW11
A.B
00
MV
P.B
TRANS CN2S
DC13.1V
(WHT)
(RED)
AC220-240V
CNSK
X4
41
3
5151
X4
ON
SW4
ON SW3SW2
FAN
F.C
CND
FUSE
250V
6.3A
ZNR
CN6V CN42
CN81 OFF OFF
I.B C1
TB151
2
{
(WHT)
DC8.7-13V
(RED)
BLK WHT RED
BLU RED
BLK WHT
ORN
YLW
BLU
PIN
RED
BRN
VANE
(GRN) ADDRESS
(RED) (RED)
ADDRESS
CN52
(GRN)
REMOTE
INDICATION CN51
CENTRALLY
CONTROL
(WHT)
See fig : w1
BLU
RED
BRN
YLW
WHT
ORN
(WHT)
REMOTE
SWITCH
CN32
(WHT)
HA
CN41
(BLK)
GAS
CN29
(RED)
CN20
INTAKE (WHT)
LIQUID
CN21
TH23TH22
(WHT)
LEV
CN60
CN2M
CNDK
(RED) LED1
LED2
(BLU)
CN3A
CN2D
(WHT)
(BLU)
(M-NET)
BLK
WHT
BLU
BLU
ORN
ORN
M1
M2
S(SHIELD)
{
REMOTE CONTROLLER
DC24-30V
BC CONTROLLER
TO OUTDOOR UNIT
TB5
3RD
DIGIT 2ND DIGIT 1ST
DIGIT
0
SW14
CONNECTION
NO.
SWC
(RED)
ADDRESS
CN82
(RED)
ADDRESS
CN43
RED
BLU N
TB2
L
GRN/YLW
321
31
I.B Connector
H2
D.Heater
Aux. Relay (D.Heater)
Dew prevention heater
CNP
X1
Thermistor
TH23
(0°C/15t,25°C/5.4t)
Pipe temp.detection/Gas
Indoor power board
P.B
MA-Remote Controller
TB15
12
1221
4
3
2
18
7
6
5
4
3
2
1
2
1
3
2
1
13
2
1
3
1
2
31
1
2
123456
513
132
MF
1234
12345678
561234
MV
MF
C1
Vane motor
Terminal
block
TB5
TB2
Fan motor (with inner thermo)
Power supply
Transmission
LEV Linear expansion valve
Capacitor (fan motor)
( 0 °C/15t,25°C/5.4t)
Pipe temp.detection/Liquid
( 0 °C/15t,25°C/5.4t)
Room temp.detection
TH22
TH21
Thermistor
1.At servicing for outdoor unit, always follow the wiring diagram of outdoor unit.
2.In case of using MA-Remote controller, please connect to TB15.
(Remote controller wire is non-polar.)
3.In case of using M-NET, please connect to TB5.
(Transmisson line is non-polar.)
4.Symbol[S] of TB5 is the shield wire connection.
5.Symbols used in wiring diagram above are, :terminal block, :connecter.
6.The setting of the SW2 dip switches differs in the capacity for the detail, refer to the fig : w1.
7.Please set the switch SW5 according to the power supply voltage.
Set SW5 to 240V side when the power supply is 230 and 240 volts.
When the power supply is 220 volts, set SW5 to 220V side.
Note
Symbol Name Symbol Name
Name
Symbol
FUSE
F.C Fuse (6.3A/ 250V)
Fan phase control
I.B
ZNR
X4
SW3
SW4
SW2
CN52
CN51
CN41
CN32 Indoor controller board
Connector
Aux.Relay (Fan motor)
Varistor
Mode selection
Capacity code
Remote indication
Centrally control
Remote switch
HA terminal-A
Switch
Model selection
PKFY-P63VFM-E PKFY-P100VFM-E
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14
REFRIGERANT SYSTEM DIAGRAM6
Strainer (#50mesh)
Strainer (#100mesh)
Strainer (#100mesh)
Heat exchanger
Room temperature thermistor
TH21
Gas pipe temperature
thermistor TH23
Liquid pipe temperature
thermistor TH22
Linear expansion valve
Gas pipe
Liquid pipe
Flare connection
PKFY-P63VFM-E PKFY-P100VFM-E
Gas pipe
Item Capacity
Liquid pipe
{15.88 (5/8")
{9.52 (5/8")
{15.88 (5/8") or {19.05 (3/4")
{9.52 (3/8")
PKFY-P63VFM-E
PKFY-P100VFM-E
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15
7TROUBLE SHOOTING
7-1. HOW TO CHECK
PKFY-P63VFM-E PKFY-P100VFM-E
Parts name Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 10:~30:)
Disconnect the connector then measure the resistance using a tester.
Disconnect the connector then measure the resistance valve using a tester.
(Surrounding temperature 20:)
Linear expansion
valve (LEV)
(Refer to the next page for a detail.)
Room temperature
thermistor (TH21)
Liquid pipe temperature
thermistor (TH22)
Gas pipe temperature
thermistor (TH23)
Normal
4.3k"~9.6k"
Abnormal
Open or short
Abnormal
Open or short
Normal
2k"i5%
Abnormal
Open or short
Normal
200k"i10%
(1)-(5)
White-Red (2)-(6) Yellow-Brown (3)-(5) Orange-Red (4)-(6) Blue-Brown
Orange
Red
White
Blue
Brown
Yellow
3
6
15
4
2
M
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20:)
Fan motor (MF)
1
3
3
2
5
1
Red
White
Black
FAN
Protector
PKFY-P63VFM-E
99.5"i10%
103.5"i10%
PKFY-P100VFM-E
62.6"i10%
74.0"i10%
Abnormal
Open or short
Red-Black
White-Black
Motor terminal or
Relay connector Normal
Measure the resistance between the terminals using a tester.
(Surrounding temperature 20:~30:)
Vane motor (MV)
Dew prevention
heater (H2)
NormalConnector Abnormal
186~214"Open or short
Brown — Yellow
Brown — Blue
Red — Orange
Red — Pink
(Refer to the next
page for a detail.)
BlueYellow Brown
Orange
Red
Pink 2
3
4
5
61
M
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16
0
10
20
30
40
50
-20 -10 0 10 20 30 40 50
< Thermistor for lower temperature >
Temperature (:)
Resistance (K")
4[4
3
6
5
[3
2[2
1[1
[4
[3
[2
[1
Controller board
Drive circuit
Connector(CN60)
DC12V
Brown
Red
Blue
Orange
Yellow
White
M
4
6
2
3
5
1
Blue
Brown
Yellow
Orange
Red
White
Linear expansion valve
<Thermistor Characteristic graph>
Room temperature thermistor(TH21)
Liquid pipe temperature thermistor (TH22)
Gas pipe temperature thermistor (TH23)
Thermistor R0=15k' ±3%
Fixed number of B=3480 ± 2%
Rt=15exp { 3480( ) }
0:15k'
10:9.6k'
20:6.3k'
25:5.2k'
30:4.3k'
40:3.0k'
Thermistor for
lower temperature
Linear expansion valve
①Operation summary of the linear expansion valve.
• Linear expansion valve open/close through stepping motor after receiving the pulse signal from the indoor controller board.
• Valve position can be changed in proportion to the number of pulse signal.
1
273+t 1
273
<Connection between the indoor controller board and the linear expansion valve>
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17
Output
(Phase)
Output
{1
1
ON
{2ON
{3OFF
{4OFF
2
OFF
ON
ON
OFF
3
OFF
OFF
ON
ON
4
ON
OFF
OFF
ON
<Output pulse signal and the valve operation>
➁Linear expansion valve operation
➂Trouble shooting
D
A
E
B
C
Open
Extra tightning (80~100pulse)
Pulse number
2000 pulse
Opening a valve
all the way
Close
Valve position (capacity)
6
5
4
3
2
1
LED1T
Symptom Check points
Operation circuit
failure of the
micro processor.
Disconnect the connector on the controller board,
then connect LED for checking.
Pulse signal will be sent out for 10 seconds as soon as
the main switch is turned on. If there is LED with lights
on or lights off, it means the operation circuit is abnormal.
Countermeasures
Exchange the indoor
controller board at drive
circuit failure.
Linear expansion
valve mechanism
is locked.
Valve doesn't
close completely.
Wrong connection
of the connector
or contact failure.
To check the linear expansion valve, operate the indoor unit
in fan mode and at the same time operate other indoor units
in cooling mode, then check the pipe temperature <liquid
pipe temperature> of the indoor unit by the
outdoor multi controller board operation
monitor. During fan operation, linear
expansion valve is closed completely and if
there are some leaking, detecting tempera-
ture of the thermistor will go lower. If the
detected temperature is much lower than
the temperature indicated in the remote
controller, it means the valve is not closed all the way. It is
not necessary to exchange the linear expansion valve, if the
leakage is small and not making any trouble.
Liquid pipe
thermistor
Linear
expansion
valve
Motor will idle and make ticking noise when motor is
operated while the linear expansion valve is locked. This
ticking sound is the sign of the abnormality.
Check the color of lead wire and missing terminal of
the connector.
Exchange the linear
expansion vale.
Exchange the linear
expansion valve.
If large amount of ther-
mistor is leaked,
exchange the linear
expansion valve.
Disconnect the connec-
tor at the controller
board, then check the
continuity.
Measure the resistance between the each coil (red-white,
red-orange, brown-yellow, brown-blue) using a tester. It
is normal if the resistance is in the range of 150'+10%.
Short or breakage of
the motor coil of the
linear expansion
valve.
Closing a valve : 1 → 2 → 3 → 4 → 1
Opening a valve : 4 → 3 → 2 → 1 → 4
The output pulse shifts in above order.
❈ 1. When linear expansion valve operation stops, all output phase
become OFF.
2. At phase interruption or when phase does not shift in order,
motor does not rotate smoothly and motor locks and vibrates.
❈ When the switch is turned on, 2200 pulse closing valve signal will
be send till it goes to ⁄
Apoint in order to define the valve posi-
tion.
When the valve move smoothly, there is no noise or vibration
occurring from the linear expansion valve : however, when the
pulse number moves from ⁄
Eto ⁄ Aor when the valve is locked,
more noise can be heard than normal situation.
❈ Noise can be detected by placing the ear against the screw dri-
ver handle while putting the screw driver to the linear expansion
valve.
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18
7-2. FUNCTION OF DIP SWITCH
1
2
3
4
5
6
7
8
9
10
1~6
1
2
3
4
5
6
7
8
9
10
1~5
Thermistor<Intake temperature
detection>position
ON OFF
Filter clogging detection Provided Not provided
Filter cleaning sign 2500hr 100hr
Air intake Effective Not effective
Remote indication switching Thermostat ON signal indication Fan output indication
Humidifier control w1w2
Air flow set in case of Fix to LOW w3 Fix to EXTRA LOW w3
Heat thermostat OFF w3 Depends on SW1-7
Auto restart Effective Not effective
Power source ON/OFF Effective Not effective
Heat pump/Cooling only Cooling only model Heat pump model
Louver Available Not available
Vane Available Not available
Vane swing function Available Not available
Vane horizontal angle Second setting First setting
Vane cooling limit angle setting w4 Horizontal angle Down B,C
Effective Not effective
Heater 4degrees up Not effective Effective
Target Superheat setting w5 9degrees 6degrees
Target Sub cool setting 15degrees 10degrees
ON
OFF 12345
ON
OFF 12345678910
ON
OFF 123456
MODELS SW2 MODELS SW2
PKFY-
P63VFM-E PKFY- P100VFM-E
Address board
<At delivery>
Indoor controller board
Indoor controller board
Indoor controller board
<At delivery>
SW4
Unit
Selection
SW3
Function
Selection
SW2
Capacity
code
setting
SW1
Mode
Selection
Switch Pole Function
Operation by switch Remarks
Built-in remote controller Indoor unit
Indoor linear expansion
valve opening
NOTE:
w1 At Heating mode, fan
operating.
w2 At Heating mode, operat-
ing heat thermostat ON.
w3 SW1-7=OFF, SW1-8=ON
→Setting air flow.
SW1-7=ON, SW1-8=ON
→Indoor fan stop.
Set while the unit is off.
<At delivery>
Set for each capacity.
Set while the unit is off.
NOTE:
w4 At cooling mode, each
angle can be used only 1
hour.
w5 sw3-9 setting
PKFY-P63VFM-E = ON
PKFY-P100VFM-E = OFF
Set while the unit is off.
ON
OFF 123456
ON
OFF 12345678910
<At delivery>
ON
OFF 12345
Operated depends
on the condition
Always operated while
the heating mode
Depends on setting
remote controller
PKFY-P63VFM-E
PKFY-P100VFM-E
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19
0
5
9
4
8
3
7
2
6
1
SW12 0
5
9
4
8
3
7
2
6
1
SW11
0
8
F
7
E
6
D
5
C
4
B
3
A
2
9
1
SW14
0
5
9
4
8
3
7
2
6
1
SW12 0
5
9
4
8
3
7
2
6
1
SW11
0
8
F
7
E
6
D
5
C
4
B
3
A
2
9
1
SW14
Address board
Address board
Operation by switchSwitch Pole Remarks
<At delivery>
<At delivery>
SW11
1st digit
address
setting
SW12
2nd digit
address
setting
Rotary switch
SW14
Connect
ion No.
setting
Rotary switch
Address setting should be done when M-NET
remote controller is being used.
This is the switch to be used when the indoor
unit is operated with R2 series outdoor unit
as a set.
220V 240V
220V 240V
Address board
<At delivery>
2
SW5
Voltage
Selection
If the unit is used at the 230V or 240V area,
set the voltage to 240V.
If the unit is used at the 220V, set the voltage
to 220V.
Address can be set while the
unit is stopped.
10 1
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20
7-3. TEST POINT DIAGRAM
7-3-1. Indoor controller board
PKFY-P63VFM-E
PKFY-P100VFM-E
LED1
Main power supply
(Indoor unit : 220-240V)
CND
Power supply for
indoor controller board
Between 11to 33220-240V AC
CNP
Dew prevention heater (H2)
Between 11to 33220-240V AC
FUSE
6.3A 250V
CNDK
Connect to the indoor power
board (CNSK)
Between 11to 33220-240V AC
FAN
Fan motor output (MF)
CN2D
Connect to the indoor
power board (CN2S)
12.5-13.7V DC (Pin11(+))
CN2M
Connect to the terminal block (TB5)
(M-NET transmission connecting wire)
24-30V DC (non-polar)
CN3A
Connect to the terminal block (TB15)
(MA-Remote controller connecting wire)
Between 11to 338.7-13V DC (Pin11(+))
CN29
Pipe temperature
thermistor/Gas (TH23)
CN21
Pipe temperature
thermistor/Liquid (TH22)
LED2
Power supply for
MA-Remote controller
CN32
Connector
(Remote switch)
SW4
Model selection
CN60
Linear expansion valve
output (LEV)
SW3
Mode selection
CN51
Centrally control
SW2
Capacity setting
CN52
Remote indication
CN6V
Vane motor output (MV)
CN20
Room temperature
thermistor (TH21)
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