Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E Operating manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
No. OC341
REVISED EDITION-B
INDOOR UNIT
CONTENTS
1. TECHNICAL CHANGES·······················2
2. FEATURES ···········································2
3. PART NAMES AND FUNCTIONS········3
4. SPECIFICATION···································5
5. OUTLINES AND DIMENSIONS············9
6. WIRING DIAGRAM·····························10
7. REFRIGERANT SYSTEM DIAGRAM ···12
8. MICROPROCESSOR CONTROL·······13
9. TROUBLESHOOTING························20
10. DISASSEMBLY PROCEDURE···········27
11. PARTS LIST········································30
12. RoHS PARTS LIST·····························33
July 2007
R410A / R22
NOTE:
• This manual describes only
service data of the indoor units.
• RoHS compliant products have
<G> mark on the spec name
plate.
• For servicing RoHS compliant
products, refer to the RoHS
PARTS LIST.
Revision:
• PMFY-P06/08/12/15NBMU-E1are
added in REVISED EDITION-B.
• Some descriptions have been
modified.
• Please void OC341 REVISED
EDITION-A.
PMFY-P06NBMU-E PMFY-P06NBMU-E
PMFY-P06NBMU-E1
PMFY-P08NBMU-E PMFY-P08NBMU-E
PMFY-P08NBMU-E1
PMFY-P12NBMU-E PMFY-P12NBMU-E
PMFY-P12NBMU-E1
PMFY-P15NBMU-E PMFY-P15NBMU-E
PMFY-P15NBMU-E1
Indoor unit
[Model names] [Service Ref.]
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2
2FEATURES
1. Fresh Air Intake
Air recycled indefinitely can become stale and stagnant with air quality suffering significantly. Fresh air is the
answer and it is for this reason that the PMFY- series takes in air directly from outdoors. This fresh air intake
allows you to enjoy the comfort of crisp, refreshing air in the confines of your living or working space.
2. Light and Compact
The main unit weighs only 31 lb. and the panel merely 7 lb. This makes the PMFY- series one of the lightest in the
industry. The unit size is also quite small, having been standardised to a strikingly compact 33-5/8 inch. All of
this make the chore of installation and maintenance that much simpler and easier.
Models Cooling capacity / Heating capacity
PMFY-P06NBMU-E 6,000 / 6,700 Btu/h
PMFY-P08NBMU-E 8,000 / 9,000 Btu/h
PMFY-P12NBMU-E 12,000 / 13,500 Btu/h
PMFY-P15NBMU-E 15,000 / 17,000 Btu/h
Indoor Unit
1TECHNICAL CHANGES
PMFY-P06NBMU-E ➔PMFY-P06NBMU-E1
PMFY-P08NBMU-E ➔PMFY-P08NBMU-E1
PMFY-P12NBMU-E ➔PMFY-P12NBMU-E1
PMFY-P15NBMU-E ➔PMFY-P15NBMU-E1
1. FAN MOTOR(MF) has been changed.
2. CONTROLLER BOARD(I.B) has been changed.
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3
PART NAMES AND FUNCTIONS
3
Guide vane
Air flow can be changed to horizontal
by moving the guide vane to the left or right.
Air intake
Returns air from room.
Filters
Remove dust and pollutants
from return air.
Auto Air Swing Vane
Disperses airflow up and
down and adjusts the angle
of airflow direction.
Horizontal Air Outlet
● Indoor Unit
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Temperature setting 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
lid
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 return operation
number
Ventilation button
( Operation button)
To go to next operation
number
Built-in temperature sensor
● Wired remote controller
Once the controllers are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
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4
● Wired remote controller
●
●
˚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
Note:
“PLEASE WAIT” message
This message is displayed for approximately 3 minutes when power is supplied to the indoor unit or when the unit is recovering from a power failure.
“NOTAVAILABLE” message
This message is displayed if an invalid button is pressed (to operate a function that the indoor unit does not have).
If a single remote controller is used to operate multiple indoor units simultaneously that are different types, this message will not be displayed as
far as any of the indoor units is equipped with the function.
Display Section
For purposes of this explanation,
all parts of the display are shown
as lit. During actual operation, only
the relevant items will be lit.
Identifies the current operation
Shows the operating mode, etc.
*Multilanguage display is available.
“Centrally Controlled” indicator
Indicates that operation from the
remote 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, the time to be
switched off is shown.
“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
To be displayed 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
Shows the direction of the
outcoming airflow.
“One Hour Only” indicator
Room Temperature display
Shows the room temperature. The room
temperature display range is 46~102°F.
The display blinks if the temperature
is less than
46°F or 102°F or more.
Louver display
Indicates the action of the swing louver.
Does not appear if the louver is not
running.
(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.
Displayed if the airflow is set to
low or downward during COOL
or DRY mode. (Operation varies
according to model.)
The indicator goes off in one hour,
when the airflow direction also
changes.
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5
4SPECIFICATION
4-1. SPECIFICATIONS
Note 1. Rating conditions
Cooling: Indoor: D.B. 80°F W.B. 67°F
outdoor: D.B. 95°F W.B. 75°F
Heating: Indoor: D.B. 70°F
outdoor: D.B. 47°F W.B. 43°F
Note 2. The number indicated in < > is for the grille.
W3. Air flow and the noise level are indicated as Low - Medium2 - Medium1 - High.
Item
V·Hz
Btu/h
Btu/h
kW
kW
A
A
—
in.
in.
in.
—
—
CFM
in W.G.
kW
—
—
[in.
[in.
[in.
dB
lb.
Cooling capacity
Power
Heat exchanger
Insulator
Air filter
Fan ✕No
Air flow W3
Pipe
dimensions
Field drain pipe size
Noise level W3
Product weight
Exterior
(munsell symbol)
Fan motor
output
External
static pressure
Liquid
side
Gas
side
Heating capacity
Dimensions
Height
Width
Depth
Electric characteristic
Input
Cooling
Heating
Cooling
Heating
Current
PMFY-P06NBMU-E
PMFY-P06NBMU-E1PMFY-P08NBMU-E PMFY-P08NBMU-E1PMFY-P12NBMU-E PMFY-P12NBMU-E1PMFY-P15NBMU-E PMFY-P15NBMU-E1
Single phase 208-230V 60Hz
6,000
6,700
0.042
0.042
0.20
0.20
8,000
9,000
0.042
0.042
0.20
0.20
12,000
13,500
0.044
0.044
0.21
0.21
15,000
17,000
0.054
0.054
0.26
0.26
250-280-300-320
32-34-36-37
230-250-280-300
27-30-33-35
270-300-340-370
33-35-37-39
Unit : Galvanized sheets · Standard grilles : ABS resin acrylic coating Munsell<6.4Y 8.9/0.4>
9-1/16<1-3/16>
31-15/16<39-3/8>
15-9/16<18-1/2>
Cross fin
Line flow fan ✕1
0
0.028
Polyethylene sheet
PP honey comb fabric
1/2"
1/4"
1" O.D. (PVC pipe VP-20 connectable)
31<7>
F a n
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6
4-2. ELECTRICAL PARTS SPECIFICATIONS
Parts name
Service Ref. Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
DS
LEV
TB2
TB5
TB15
Resistance 30˚F/15.8k", 50˚F/9.6k", 70˚F/6.0k", 80˚F/4.8k", 90˚F/3.9k", 100˚F/3.2k"
Resistance 30˚F/15.8k", 50˚F/9.6k", 70˚F/6.0k", 80˚F/4.8k", 90˚F/3.9k", 100˚F/3.2k"
Resistance 30˚F/15.8k", 50˚F/9.6k", 70˚F/6.0k", 80˚F/4.8k", 90˚F/3.9k", 100˚F/3.2k"
250V 6A
Thermistor resistance 30_F/6.3k", 50_F/3.9k", 70_F/2.5k", 80_F/2.0k", 90_F/1.6k", 100_F/1.3k"
(L1, L2, GR) Rated to 330V 30A
(M1, M2, S) Rated to 250V 20A
(1,2) Rated to 250V 10A
Liquid pipe thermistor
Gas pipe thermistor
Drain pump
Drain sensor
Linear expansion valve
PMFY-P06NBMU-E
PMFY-P06NBMU-E1PMFY-P08NBMU-E
PMFY-P08NBMU-E1PMFY-P12NBMU-E PMFY-P12NBMU-E1PMFY-P15NBMU-E PMFY-P15NBMU-E1
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Vane motor
Power supply
terminal block
Transmission
terminal block
DC Brushless Motor
8-pole OUTPUT 28W
PN0H28-MB
MSFJC 20M23
12V/380
"
PJV-1063
208-240V 50/60Hz
DC12V Stepping motor drive
port dimension [
3.2 (0~2000pulse)
EDM-40YGME
MA-remote controller
terminal block
wNote : Refer to WIRING DIAGRAM for the supplied voltage.
w
w
w
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7
4-3. AIR CAPACITY TAKEN FROM OUTSIDE
PMFY-P·NBMU-E series are capable of taking air from outside. When taking air from outside, the duct fan is used.
The air capacity should be 20% or less of the airflow SPEC(Hi).
PMFY-P06NBMU-E
PMFY-P06NBMU-E1
PMFY-P08NBMU-E
PMFY-P08NBMU-E1
PMFY-P12NBMU-E
PMFY-P12NBMU-E1
PMFY-P15NBMU-E
PMFY-P15NBMU-E1
300 CFM
320 CFM
320 CFM
370 CFM
60 CFM
64 CFM
64 CFM
74 CFM
Air flow (Hi) Air capacity taken from outsideService Ref.
(Knockout)
4-{1/8
Fresh air intake hole (Knockout)
Fresh air intake hole
90-
{4-
13/16
{
3-15/16
4-1/4
9-13/16 11-3/8
(Unit:inch)
~
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 33 feet.
Be sure to secure insulation
material by tape, etc.
5Green
Yellow
Orange
Connector (5P)
Indoor unit side Multiple remote
controller adapter
PAC-SA88HA-E Be sure to secure insulation
material by tape, etc.
CN51
on
indoor unit
board Red
Brown
MB
1
Installation at site
Q
0
BA
C
1
2
3
Curve in the
right graphs
Duct characteristics
at site
Q
A
EC
Q
Qa
AD
Operation in conjunction with duct fan (Booster fan)
●Whenever the indoor unit is operating, the duct fan
operates.
(1)Connect the optional multiple remote controller
adaptor (PAC-SA88HA-E) to the connector CN51
on the indoor controller board.
(2)Drive the relay after connecting the 12V DC relay
between the Yellow and Orange connector lines.
(w)Use a relay of 1W or smaller.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (12V DC LY-1F)
How to read curves
0.2
Static pressure (in.W.G.)
0.1
00
-0.1
-0.2
-0.3
-0.4 010
Air flow (CFM)
20
Characteristic diagram of air capacity taken from outside of PMFY-P·NBMU-E
30 40 50 60 70 80
2 intake
1 intake
Q…Designed amount of fresh air
intake <CFM>
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q <in. W.G>
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
<in. W.G>
C…Static pressure of booster fan with
air flow amount Q <in. W.G>
D…Static pressure loss increase
amount of fresh air intake duct
system for air flow amount Q
<in. W.G>
E…Static pressure of indoor unit with
air flow amount Q <in. W.G>
Qa…Estimated amount of fresh air
intake without D <CFM>
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8
4-4. NOISE CRITERION CURVES
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE THRESHOLD OF HEARING
FOR CONTINUOUS NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PMFY-P06NBMU-E
PMFY-P06NBMU-E1High
NOTCH
Medium1
Medium2
Low
35
SPL(dB)
33
30
27
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P08NBMU-E1
PMFY-P12NBMU-E1
High
NOTCH
Medium1
Medium2
Low
37
SPL(dB)
36
34
32
LINE
90
80
70
60
50
40
30
20
10 63 125 250 500 1000 2000 4000 8000
APPROXIMATE
THRESHOLD OF
HEARING FOR
CONTINUOUS
NOISE
NC-60
NC-50
NC-40
NC-30
NC-20
NC-70
OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)
BAND CENTER FREQUENCIES, Hz
PMFY-P15NBMU-E
PMFY-P15NBMU-E1High
NOTCH
Medium1
Medium2
Low
39
SPL(dB)
37
35
33
LINE
UNIT
5ft
MICROPHONE
CEILING
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9
5OUTLINES AND DIMENSIONS
Details of fresh air intake hole
Knockout
4-{1/8(2.8) Burring hole
Fresh air intake hole
4-5/16 (110)
9-1/16(230)
9-1/2
(235) or more
4-5/16
(110)
Suspension bolt(M10 or W 3/8)
Panel(grille):PMP-16BMU
Installation space required around indoor unit
Mounting plate
6-15/16(176)
Panel(grille):PMP-16BMU
Lower view
2-3/8(60) 1-9/16(40)
7-7/8(200)
23-5/8(600)
7-7/8(200)
Top
Air outlet(lower)
1-13/18(46)
1-11/16(43)
13/16(20) 13/16(20)
2-1/16(53)
2-11/16(69)
9-3/8(247)
1-3/16(30)
Right side
Outer line of grille
Center line of unit
29-7/8(759)
1-1/32(26) 31-15/18(811)suspension bolt pitch2-15/18(74.5) 37-13-16(960) ceiling opening13/16(20)
1-1/32(26)
2-15/18(74.5)
13/16(20)
39-3/8(1000)outer side of grille
11/16(17.5) 11/16(17.5)
1-25/32(45)
13-3/8(340) Suspension bolt pitch
1-25/32(45)
16-15/16(430) Ceiling opening
18-1/2(470) Outer side of grille
13/16(20)
13/16(20)
Terminal block for power supply
Terminal block for transmission
31-15/16(812)
3-3/8(96)
Left side
Front drain pan
Electrical box
Drainage pipe
PVC pipe: VP-20[O.D.{1"(26)]
Refrigerant pipe(gas) O.D.{1/2"(12.7)
Refrigerant pipe(liquid) O.D.{1/4"(6.35)
Ceiling panel
Drain pan Ceiling
panel
O.D.{1/2"({12.7)
PVC pipe:VP-20[I.D.{31/32"({25)]
O.D.{1/4"({6.35)
O.D.{1-11/16({43)
Drainage pipingGas pipe
Liquid pipe Pipe cover
Refrigerant piping
39-3/8(1000) outer side of grille
18-1/2(470) Outer side of grille
{1-31/32(50)
2-3/16(56)
9-1/16(230)
3-3/8(96)
13/16(20)
13/32(10)
11-7/8(302)
10(254)
7-13/16(198)
5-9/16(141)
29-7/8(759)
15-9/16(395)
90-
{4-
13/6(122)
{3-15/16(
100)
4-1/4
(108)
9-13/16(250) 11-3/8(288.5)
Same line
Terminal block for remote controller
PMFY-P06NBMU-E PMFY-P06NBMU-E1
PMFY-P08NBMU-E PMFY-P08NBMU-E1
PMFY-P12NBMU-E PMFY-P12NBMU-E1
PMFY-P15NBMU-E PMFY-P15NBMU-E1
Unit : in. (mm)
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10
6WIRING DIAGRAM
Note 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. (Transmission wire 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, SW3 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.
CN51 CN52 SW2 SW3 SW4
A.B Address board
SW1 SW5 SW11 SW12
Mode selection Voltage selection Address setting 1st digit Address setting 2nd digit
SW14 Connection No.
Centrally control Remote Indication
Switch Switch
Capacity code Mode selection Model selection
ZNR Varistor
X1 Aux.relay Drain pump
FUSE Fuse (6A / 250V)
LED1 Power supply (I.B) LED2 Power supply (I.B) T Transformer TH21
MF MV
Thermistor Room temp. detection
(32
°
F
/15k", 77
°
F
/5.4k")
Pipe temp. detection / Liquid (32
°
F
/15k", 77
°
F
/5.4k")
Pipe temp. detection / Gas (32
°
F
1/15k", 77
°
F
/5.4k")
LEV Linear expansion valve
TH22 TH23
Fan motor (with inner thermo) Vane motor
TB15 MA-Remote Controller
[Legend]
Symbol Name
I.B Indoor controller board
CN25 CN27 CN32
Connector Humidifier
Damper Remote switch
Symbol Name Symbol Name
DS DP Drain sensor
Drain water lifting-up mech.
TB2 TB5 Transmission
Terminal block Power supply
Models
P06 P08 P12 P15
SW2
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
SW3
1234567
ON
OFF
1234567
ON
OFF
123456
ON
OFF
123456
7 7
8 8 8 8
9 9 9 9
10 10 10 10
ON
OFF
<fig : w1>
Mark Meaning Function
Power supply for MA-Remote controller
Main power supply (Indoor unit:208-230V) Power on ➝Lamp is lit.
LED on indoor board for service
LED1
Main power supply
Power supply for MA-Remote controller on ➝Lamp is lit.
LED2
1 2 3 4 5
56
MF FAN
(
WHT
)
LED2
LED1
2 1(BLU)
(M-NET)
CN2M
BLU BLU
TB5
M1
M2
TB2
PULL BOX FUSE(15A) BREAKER (15A)
L1 L2
S
(
SHIELD)
TO OUTDOOR UNIT BC CONTROLLER REMOTE CONTROLLER DC24-30V
2 3 1CN3A
(BLU)
ORN ORN
TB15
1
2
TO MA-REMOTE CONTROLLER DC8.7-13V
POWER SUPPLY ~ / N 208—230V 60Hz
TO NEXT INDOOR UNIT
3 2 1 (BLK)
GAS
CN29
2 1 (WHT)
LIQUID
CN21
2 1
DS TH23 TH22
(RED)
INTAKE
CN20
(WHT)
LEV
CN60
(GRN)
REMOTE
INDICATION
CN52
2 1 6 5 4 3 2 1
15
(GRN)
VANE
CN6V
6 5 4 3 2 1 2 1
1 2 3 4 5
TH21
(WHT)
DRAIN
CN31
6
LEV MV
CN25 2 1
CN27 8
7 6 5 4 3
4 3
3
2 1
1
2 1
12345678910
SW3
123456
SW2
12345
SW4
ON
OFF
ON
OFF
ON
OFF
(RED)
ADDRESS
CN81
(RED)
ADDRESS
CN42
(WHT)
REMOTE
SWITCH
CN32
3212 13
DP
X1
X1
(WHT)
CNP
CND
(RED)
FUSE
250V
6A
T
BRN
RED
ORN
YLW
GRN
BLU
BRN
ORN
YLW
RED
WHT
(WHT)
CENTRALLY
CONTROL
CN51
15
RED BLU GRN / YLW See fig : w1
8 7 6 5 4 3 2 1
4321
8
4
0
SW14SWC
2
1
CONNECTION
No.
0
SW11
1ST
DIGIT
0
SW12
2ND
DIGIT
3RD
DIGIT
12345678910
SW1
SW5 230V208V
(RED)
ADDRESS
CN82
(RED)
ADDRESS
CN43
A.B
I.B
G
<w2>
(w2)Use copper supply wire.
PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E
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11
Note 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. (Transmission line is non-polar.) 4.Symbol [S]of TB5 is the shield wire connection. 5.Symbols used in wiring diagram above are, : terminal block, :connector. 6.The setting of the SW2, SW3 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.
CN51 CN52 SW2 SW3 SW4
A.B Address board
SW1 SW5 SW11 SW12
Mode selection Voltage selection Address setting 1st digit Address setting 2nd digit
SW14 Connection No.
Centrally control Remote Indication
Switch Switch
Capacity code Mode selection Model selection
ZNR Varistor
X1 Aux.relay Drain pump
FUSE Fuse (6A / 250V)
LED1 Power supply(I.B) LED2 Power supply(I.B) T Transformer TH21
MF MV
Thermistor Room temp. detection
(32°F/15k
Ω,
77°F/5.4k
Ω)
Pipe temp. detection / Liquid (32°F/15k
Ω,
77°F/5.4k
Ω)
Pipe temp. detection / Gas (32°F/15k
Ω,
77°F/5.4k
Ω)
LEV Linear expansion valve
TH22 TH23
Fan motor Vane motor
TB15 MA-Remote Controller
[Legend]
Symbol Name
I.B Indoor controller board
CN25 CN27 CN32
Connector Humidifier
Damper Remote switch
Symbol Name Symbol Name
DS DP Drain sensor
Drain water lifting-up mech.
TB2 TB5 Transmission
Terminal block Power supply
Models
P06 P08 P12 P15
SW2
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
SW3
1234567
ON
OFF
1234567
ON
OFF
123456
ON
OFF
123456
7 7
8 8 8 8
9 9 9 9
10 10 10 10
ON
OFF
<fig:w1>
Mark Meaning Function
Power supply for MA-Remote controller
Main power supply (Indoor unit:208-230V) Power on Lamp is lit.
LED on indoor board for service
LED1
Main power supply
Power supply for MA-Remote controller on Lamp is lit.
LED2
6 1 3
MS
3~
MF FAN
(WHT)
LED2
LED1
2 1(BLU)
(M-NET)
CN2M
BLU BLU
TB5
TB2
PULL BOX
FUSE
(15A)
BREAKER
(15A)
(SHIELD)
TO OUTDOOR UNIT BC CONTROLLER REMOTE CONTROLLER DC24-30V
CN3A
(BLU)
ORN ORN
TB15
TO MA-REMOTE CONTROLLER DC8.7-13V
POWER SUPPLY ~ / N 208-230V 60Hz
TO NEXT INDOOR UNIT
(BLK)
GAS
CN29
(WHT)
LIQUID
CN21
DS TH23 TH22
(RED)
INTAKE
CN20
(WHT)LEV
CN60
(GRN)
REMOTE
INDICATION
CN52
15
(GRN)VANE
CN6V
6161
15
2121212131
TH21
(WHT)
DRAIN
CN31
LEV
MM
MV
CN25 21
CN27 8
4 1 1
12345678910
SW3
123456
SW2
12345
SW4
ON
OFF
ON
OFF
ON
OFF
(RED)
ADDRESS
CN81
(RED)
ADDRESS
CN42
(WHT)
REMOTE
SWITCH
CN32
M
1~
DP
X1
(WHT)
CNP
CND
(RED)
FUSE
T
BRN
RED
ORN
YLW
GRN
BLU
BRN
ORN
YLW
RED
WHT
(WHT)
CENTRALLY
CONTROL
CN51
15
RED BLU GRN / YLW See fig : w1
81
41
8
4
SW14SWC
2
1
CONNECTION
No.
SW11
1ST
DIGIT
SW12
2ND
DIGIT
3RD
DIGIT
12345678910
SW1
SW5 230V208V
(RED)ADDRESS
CN82
(RED)
ADDRESS
CN43
A.B
I.B
<w2>
<w2>Use Copper Supply Wire.
t°t°t°t°
3 1
3 1
31
31
1 2
L1 L2
GR
U
M1 M2
S
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
PMFY-P06NBMU-E1PMFY-P08NBMU-E1PMFY-P12NBMU-E1PMFY-P15NBMU-E1
OC341B--1.qxp 07.7.11 1:29 PM Page 11

12
REFRIGERANT SYSTEM DIAGRAM7
Strainer (#100mesh)
Strainer pipe (#100mesh)
Strainer
(#100mesh)
Strainer
(#50mesh)
Heat exchanger
Thermistor TH21
<Room temperature detection>
Thermistor TH23
<Gas pipe temperature
detection>
Thermistor TH22
<Liquid pipe temperature
detection>
Linear expansion valve
w1w2
Gas pipe
Liquid pipe
Flare connection
Gas pipe
Liquid pipe
[1/2"(12.7)
[1/4"(6.35)
Item Service Ref.
Capillary tube w1
Capillary tube w2
O.D.[4.6 oI.D.[3.4 oR200 O.D.[3.6 oI.D.[2.4 oR200
O.D.[3.6 oI.D.[2.4 oR80
PMFY-P06/ P08/ P12/ P15NBMU-E
PMFY-P06/ P08/ P12/ P15NBMU-E1
PMFY-P06/ P08NBMU-E
PMFY-P06/ P08NBMU-E1PMFY-P12/ P15NBMU-E PMFY-P12/ P15NBMU-E1
Unit:in.(mm)
Unit:mm
PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E
PMFY-P06NBMU-E1PMFY-P08NBMU-E1PMFY-P12NBMU-E1PMFY-P15NBMU-E1
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13
8 MICROPROCESSOR CONTROL
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
˚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
INDOOR UNIT CONTROL
8-1. COOL OPERATION
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display COOL.
3Press the TEMP. button to set the desired temperature.
NOTE: The set temperature changes 2°F when the or button is
pressed once. Cooling 67 to 87°F.
Control modes Control details
1-1. Functions regulated by temperature
• Room temperature ]desired temperature + 2°F ···Thermo ON
• Room temperature [desired temperature ···Thermo OFF
1-2. Anti-freezing control
Detected condition : When the liquid pipe temp. (TH22) is 32°F or less in 16
minutes from compressors start up, anti-freezing control
starts and the thermo
stat OFF.
Released condition : The timer which prevents reactivating is set for 3 minutes,
and anti-freezing control is cancelled when any one of the
following conditions is satisfied.
1Liquid pipe temp. (TH22) turns to be 50°F or above.
2The condition of the thermostat OFF becomes
complete by thermoregulating, etc.
3The operation mode becomes a mode other than COOL.
4The operation stops.
1-3. Compressor time delay
• 3 minutes minimum off cycle.
By the remote controller setting (switch of 4 speeds)
2. Fan
1. Functions regulated
by temperature
Remarks
Type Fan speed notch
[Low], [Medium2], [Medium1], [High]
4 speeds
To be continued to the next page
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14
→
3
2
1
→
Control modes Control details
3-1. Drain pump control
• Always drain pump ON during the COOL and DRY mode operation.
(Regardless of the thermostat ON/ OFF)
• When the operation mode is changed from COOL or DRY to any other mode
(including Stop), the drain pump continues to run for 3 minutes.
Drain sensor function
• The indoor circuit board energizes the drain sensor at a fixed voltage for a fixed
duration. After energizing, the circuit board then compares the drain sensor’s
temperature to the one before energizing, and judges whether the sensor is in
the air or in the water.
Basic control system
• While drain pump is turned on, it will repeat the following control system and judge
whether the sensor is in the air or in the water.
•Drain sensor temperature rise (∆t)
•Temperature of drain sensor before current is applied (T0)
•Temperature of drain sensor after current is applied (T1)
[ ∆t = T1– T0]
(1)Initial setting : Start at COOL mode and horizontal vane.
(2)Vane position : Horizontal →Downward A →Downward B →Downward C→Swing
(3)Restriction of the downward vane setting
When setting the downward vane A, B or C in [Medium1], [Medium2] or [Low] of
the fan speed notch, the vane changes to horizontal position after 1 hour has
passed.
4. Vane
(up/ down vane change)
3. Drain pump
Remarks
✻1
Drain sensor
Indoor controller
board
CN31
✻1
"Only 1 Hr"
appears on the
wired remote
controller.
Timing of
energizing
drain sensor
From the preceding page
ON
OFF Stand by for
a minute 30 sec. 30 sec.
Detect the
temperature
before
energizing.
(T0) Detect the
temperature
after
energizing.
(T1)
Judge whether
the sensor is in
the air or in the
water.
Stand by for
a minute
·······Repeat
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15
Control modes Control details
1-1. Dry mode temperature is controlled by TH21.
Dry mode ON Room temperature ] desired temperature + 2°F
Dry mode OFF Room temperature [ desired temperature
1-2. Frozen prevention control
No control function
Indoor fan operation control depends on the compressor conditions.
3. Drain pump
1. Functions regulated
by temperature
Remarks
Room
temperature 3 min. passed since starting operation
Call
Room temperature (Ta)
Dry mode
ON
time (min)
Dry mode
OFF
time (min)
Less than 64°F
Over 64°FON
OFF
Ta ] 83°F
83°F > Ta ] 79°F
79°F > Ta ] 75°F
75°F > Ta
Unconditional
93
73
53
33
10
3
Dry mode OFF
2. Fan
Note: Remote controller setting is not acceptable.
Dry mode Fan speed notch
ON
OFF
[Low]
Stop
4. Vane
(up/ down vane change)
Same control as COOL operation
Same control as COOL operation
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
˚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
8-2. DRY OPERATION
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display DRY.
3Press the TEMP. button to set the desired temperature.
NOTE: The set temperature changes 2°F when the or button is
pressed once. Dry 67 to 87°F.
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16
Control modes Control details
Set by remote controller.
2. Drain pump
Remarks
1. Fan Type Fan speed notch
4 speeds type [Low], [Medium2], [Medium1], [High]
3. Vane
(up/ down vane change)
2-1. Drain pump control
The drain pump turns ON for the specified amount of time when any of the
following conditions is satisfied:
1ON for 3 minutes after the operation mode is switched from COOL or DRY to
another operation mode (FAN).
2ON for 6 minutes after the drain sensor is determined to be submerged
using the liquid level detection method given below.
3ON for 6 minutes after indoor piping (liquid piping) temperature – indoor
room temperature [-18°F, AND the drain sensor input is at the short or
open level.
(If condition 2or 3is still being met after the drain pump has been turned ON
for 6 minutes, the drain pump is kept ON for a further 6 minutes.)
2-2. Liquid level detection method
The liquid level is detected by determining whether or not the drain sensor is
submerged, based on the amount the temperature rises after self-heating the
sensor. This process is performed if any of the following conditions is satisfied:
1Drain pump is ON.
2Indoor piping (liquid piping) temperature – indoor room temperature [-18°F
3Indoor piping (liquid piping) temperature or indoor room temperature is at
the short or open level temperature.
4Every 1 hour after the drain pump has been switched from ON to OFF.
Same as the control performed during the COOL operation, but with no restriction
on the vane's downward blow setting.
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
˚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
8-3. FAN OPERATION
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display FAN.
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17
Control modes Control details
1-1. Minimum compressor off cycle is 3 minutes.
• Room temperature [ desired temperature -2°F ···Thermo ON
• Room temperature ] desired temperature ···Thermo OFF
1. Functions
regulated by
temperature
Remarks
Controlled by the remote controller (4-speed)
Priority is given to below-mentioned control mode
2-1. Stand by (hot adjust) mode
2-2. Preheating exclusion mode
2-3. Thermo OFF mode (When the compressor off by the thermoregulating)
2-4. Cool air prevention mode (Defrosting mode)
2-1. Stand by (hot adjust) mode
The fan controller becomes the stand by (hot adjust) mode for the following
conditions.
1When starting the HEAT operation
2When the thermoregulating function changes from OFF to ON.
3When releasing the HEAT defrosting operation
2. Fan
A: Stand by (hot adjust) mode start
B: 5 minutes have passed since the condition A or the indoor liquid pipe
temperature turned 95°F or more
C: 2 minutes have passed since the condition A
(Terminating the stand by (hot adjust) mode)
ACB
[Extra Low]
[Low]
Set fan speed by the remote controller
Hot adjust mode ✻1
2-2. Preheating exclusion mode
When the condition changes the auxiliary heater ON to OFF
(thermoregulating or operation stop, etc), the indoor fan operates in [Low] mode for
1 minute.
✻1
"STAND BY"
will be displayed
during the stand
by (hot adjust)
mode.
To be continued to the next page
✻1
This control is
same for the
model without
auxiliary heater.
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
˚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
8-4. HEAT OPERATION
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display HEAT.
3Press the TEMP. button to set the desired temperature.
NOTE: The set temperature changes 2°F when the or button is
pressed once. Heating 63 to 83°F.
<Display in HEAT operation>
[DEFROST]
The [DEFROST] symbol is only displayed during the defrost operation.
[STANDBY]
The [STANDBY] symbol is only displayed during hot adjust mode.
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18
→
Control modes Control details
2. Fan
Remarks
2-3. Thermo OFF mode
When the thermoregulating function changes to OFF, the indoor fan operates in
[Extra low].
2-4. Heat defrosting mode
The indoor fan stops.
No drain pump operation
However, when the control changes from COOL or DRY operation, the drain pump
operates for 3 minutes.
(1) Initial setting : OFF → HEAT···[last setting]
When changing the mode from exception of HEAT to HEAT
operation ···[Downward C]
(2) Vane position :
Horizontal →Downward A →Downward B →Downward C→Swing
(3) Restriction of vane position
1The vane is horizontally fixed for the following modes.
(The control by the remote controller is temporarily invalidated and controlled by
the unit.)
• Thermo OFF
• Stand by (hot adjust) [Extra low] mode
• Heat defrost mode
3. Drain pump
4. Vane control
(Up/ down vane
change)
From the preceding page
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19
1. Drain pump
Control modes Control details
HEAT mode for room temperature < Desired temperature
COOL mode for room temperature ]Desired temperature
(1) HEAT mode →COOL mode
Room temperature ]Desired temperature + 3°F or 3 minutes has passed
(2) COOL mode →HEAT mode
Room temperature [Desired temperature - 3°F or 3 minutes has passed
1. Initial value of
operation mode
Remarks
2. Mode change
Same control as cool operation
3. COOL mode
Same control as heat operation
4. HEAT mode
Control modes Control details
1-1. Drain pump control
The drain pump turns ON for the specified amount of time when any of the
following conditions is satisfied.
(regardless of whether the compressor is ON or OFF)
1ON for 3 minutes after the operation mode is switched from COOL or DRY to
another operation mode (HEAT mode).
2ON for 6 minutes after the drain sensor is determined to be submerged using the
liquid level detection method given below.
3ON for 6 minutes after indoor piping (liquid piping) temperature – indoor room
temperature [14°F, and the drain sensor input is at the short or open level.
(If condition 2or 3is still being met after the drain pump has been turned ON for 6
minutes, the drain pump is kept ON for a further 6 minutes.)
1-2. Liquid level detection method
The liquid level is detected by determining whether or not the drain sensor is
submerged, based on the amount the temperature rises after self-heating the
sensor.
This process is performed if any of the following conditions is satisfied:
1Drain pump is ON.
2Indoor piping (liquid piping) temperature – indoor room temperature [14°F
(except during defrosting)
3Indoor piping (liquid piping) temperature or indoor room temperature is at the
short or open level temperature.
4Every 1 hour after the drain pump has been switched from ON to OFF.
Remarks
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
˚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
8-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION]
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display AUTO.
3Press the TEMP. button to set the desired temperature.
NOTE: The set temperature changes 2°F when the or button is
pressed once. Automatic 67 to 83°F.
When in AUTO mode, the unit will switch from either heat or cool
automatically to maintain the set temperature.
8-6. WHEN UNIT IS STOPPED
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20
9TROUBLE SHOOTING
9-1. HOW TO CHECK THE PARTS
PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E
PMFY-P06NBMU-E1PMFY-P08NBMU-E1PMFY-P12NBMU-E1PMFY-P15NBMU-E1
Parts name Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 50°F~86°F)
Disconnect the connector then measure the resistance with a tester.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68°F~86°F)
Measure the resistance between the terminals with a tester.
(At the ambient temperature 68°F)
Measure the resistance after 3 minutes have passed since the power supply was turned off.
(At the ambient temperature 32°F~140°F
Vane motor (MV)
Linear expansion
valve (LEV)
Drain pump (DP)
Drain sensor (DS)
Refer to the next page for the details.
Refer to the next page for the details.
Refer to the next
page for the details.
Thermistor (TH21)
<Room temperature
detection>
Thermistor (TH22)
<Liquid pipe temperature
detection>
Thermistor (TH23)
<Gas pipe temperature
detection>
1
2
Blue
Blue
1
2
3
Normal
4.3k"~9.6k"
Abnormal
Open or short
Abnormal
Open or short
Normal
0.6k"~6.0k"
Abnormal
Open or short
Normal
150k"i10%
White-Red Yellow-Brown Orange-Red Blue-Brown
NormalConnector Abnormal
380"i7% Open or short
Normal Abnormal
400"~480"Open or short
Brown — Yellow
Brown — Red
Brown — Orange
Brown — Green
Orange
Red
White
Blue
Brown
Yellow
3
6
15
4
2
MV
M
Orange
Red
Brown
Green
Yellow
31
5
4
2
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