Mitsubishi Electric CITY MULTI PMFY-P06NBMU-E Operating manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
[Models] PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
No. OC341
INDOOR UNIT
CONTENTS
1. FEATURES ···········································2
2. PART NAMES AND FUNCTIONS········3
3. SPECIFICATION···································5
4. OUTLINES AND DIMENSIONS············9
5. WIRING DIAGRAM·····························10
6. REFRIGERANT SYSTEM DIAGRAM ····11
7. MICROPROCESSOR CONTROL·······12
8. TROUBLESHOOTING························19
9. DISASSEMBLY PROCEDURE···········26
10. PARTS LIST········································29
L
I
S
T
E
D
CUS
June 2005
R410A / R22
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2
1FEATURES
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 a measly 31 lb. and the panel a mere 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
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3
PART NAMES AND FUNCTIONS
2
● Remote controller
Once the controls are set, the same operation mode can be repeated by simply pressing the ON/OFF button.
● Operation buttons
Guide vane
Air flow can be changed horizontally
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
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.
Note : This figure is PAR-21MAA. Refer to each remote controller manual for the details.
● Indoor Unit
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4
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.
●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.
●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.
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5
3SPECIFICATION
3-1. Specification
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 just 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
Unit drain pipe size
Noise level W3
Product weight
Exterior
(munsell symbol)
Fan motor
output
External
static pressure
Liquid
side
Gas
side
Heating capacity
F
a
n
Dimensions
Height
Width
Depth
Electric characteristic
Input
Cooling
Heating
Cooling
Heating
Current
PMFY-P06NBMU-E PMFY-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E
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 grills : ABS resin acrylic coating Munsell<0.98Y 8.99/0.63>
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" I.D. (PVC pipe VP-20 connectable)
31<7>
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6
3-2. Electrical parts specifications
Parts name
Model 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-P08NBMU-E PMFY-P12NBMU-E PMFY-P15NBMU-E
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 [ 3.2 (0~2000pulse)
EDM-40YGME
MA-remote controller
terminal block
Note : Refer to WIRING DIAGRAM for the supplied voltage.
w
w
w
w
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7
3-3. Air capacity taken from outside
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
300 CFM
320 CFM
320 CFM
370 CFM
60 CFM
64 CFM
64 CFM
74 CFM
Air flow
(Hi) Air capacity taken from outside
Service Ref.
PMFY-P·NBMU-E series are capable of taking air from outside.
When taking air from outside, the duct fan must be used.
The air capacity should be 20% or less of the air flow SPEC(Hi).
Q…Planned amount of fresh air intake
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
C…Static pressure of booster fan with
air flow amount Q
D…Static pressure loss increase
amount of fresh air intake dust
system for air flow amount Q
<in. W.G>
E…Static pressure of indoor unit with
air flow amount Q
Qa…Estimated amount of fresh air
intake with out D <CFM>
<CFM>
<in. W.G>
<in. W.G>
<in. W.G>
<in. W.G>
(Knock out)
4-{1/8
Fresh air intake hole (Knock out)
Fresh air intake hole
90-
{4-
13/16
{
3-15/16
4-1/4
9-13/16 11-3/8
(Unit:inch)
Installation at site
1
~
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 and such
5Green
Yellow
Orange
Connector (5P)
Package side Multiple remote
controller adapter
PAC-SA88HA-E Be sure to secure insulation
material by tape and such
CN51
on
indoor unit
board Red
Brown
MB
Q
0
BA
C
1
2
3
Curve in the
right graphs.
Duct characteristics
at site
Q
A
EC
Q
Qa
AD
Interlocking operation method with duct fan
(Booster fan)
●Whenever the indoor unit is operating, the duct fan must
also operate.
(1)Connect the optional multiple remote controller adaptor
(PAC-SA88HA-E) to the connector CN51 on the indoor
controller board.
(2)Power the relay by connecting the 12V DC coil terminals
from the Yellow and Orange connector lines.
(w)Use a relay under 1W.
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
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3-4. 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 High
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 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 High
NOTCH
Medium1
Medium2
Low
39
SPL(dB)
37
35
33
LINE
UNIT
5ft
MICROPHONE
CEILING
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9
4OUTLINES AND DIMENSIONS
Details of fresh air intake hole
Knock out
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-40BM
Installation space required around indoor unit
mounting plate
6-15/16(176)
Panel(grille):PMP-40BM
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 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
elect box
Drainage pipe
PVC pipe: VP-20[I.D.{31/32"(25)]
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-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
Unit : in. (mm)
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10
5WIRING 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 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, 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 TH23Fan 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 ➝Iamp is lit
LED on indoor board for service
LED1
Main power supply
Power supply for MA-Remote controller on ➝Iamp 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
REFRIGERANT SYSTEM DIAGRAM6
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
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
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/ P08NBMU-E PMFY-P12/ P15NBMU-E
Unit:in.(mm)
Unit:mm
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12
7 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
7-1. 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 one time Cooling 67 to 87°F.
Control modes Control details
1-1. Functions regulated by temperature
• Room temperature ]desired temperature + 2°F ···Thermostat ON
• Room temperature [desired temperature ···Thermostat 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) turn 50°F or above.
2The condition of the thermostat OFF has become
complete by thermoregulating, etc.
3The operation mode becomes a mode other than COOL.
4The operation stopped.
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 type
To be continued on the next page.
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13
→
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 "SET FOR 1 HOUR"
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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14
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
7-2. 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 one time. Dry 67 to 87°F.
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15
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 are met:
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 met:
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 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
7-3. FAN operation
<How to operate>
1Press POWER ON/OFF button.
2Press the operation MODE button to display FAN.
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16
Control modes Control details
1-1. Minimum compressor off cycle is 3 minutes.
•
Room temperature [ desired temperature -2°F ···Thermostat ON
• Room temperature ] desired temperature ···Thermostat OFF
1. Functions
regulated by
temperature
Remarks
Controlled by the remote controller (4-speed)
Give priority to under-mentioned controlled mode
2-1. Stand by (hot adjuster) mode
2-2. Preheating exclusion mode
2-3. Thermostat OFF mode (When the compressor off by the
thermoregulating)
2-4. Cool air prevention mode (Defrosting mode)
2-1. Stand by (hot adjuster) mode
The fan controller becomes the stand by (hot adjuster) mode
for the following conditions.
1When starting the HEAT operation
2
When the thermoregulating function changes from OFF to ON.
3When release the HEAT defrosting operation
2. Fan
A: Stand by (hot adjuster) 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 adjuster) mode)
ACB
[Extra Low]
[Low]
Set fan speed by the remote controller
Hot adjuster 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 This control is same for the model
without auxiliary heater.
✻1 "STAND BY" will be displayed
during the stand by (hot adjuster)
mode.
To be continued on the next page.
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
7-4. 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 one time. 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 from the time the heating operation
starts until the heated air begins to blow.
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17
→
Control modes Control details
2. Fan
Remarks
2-3. Thermostat 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 temporally invalidated
and controlled by the unit.)
•Thermostat OFF
•Stand by (hot adjuster) [Extra low] mode
•Heat defrost mode
3. Drain pump
4. Vane control
(Up/ down vane
change)
From the preceding page.
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18
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 min. has passed
(2) COOL mode →HEAT mode
Room temperature [Desired temperature - 3°F. or 3 min. 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 are met (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 met:
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 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
7-5. 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 one time. Automatic 67 to 83°F.
When in AUTO mode, the unit will switch from either heat or cool
automatically to maintain the set temperature.
7-6. When unit is stopped Control mode
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19
8TROUBLE SHOOTING
8-1. How to check the parts
PMFY-P06NBMU-E
PMFY-P08NBMU-E
PMFY-P12NBMU-E
PMFY-P15NBMU-E
Parts name Check points
Disconnect the connector then measure the resistance using a tester.
(Surrounding temperature 50°F~86°F)
Disconnect the connector then measure the resistance using a tester.
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68°F~86°F)
Measure the resistance between the terminals using a tester.
(Surrounding temperature 68°F)
Measure the resistance after 3 minutes have passed since the power supply was turned off.
(Surrounding temperature 32°F~140°F
Vane motor
Linear expansion
valve
Drain pump
Drain sensor
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
Orange
Red
White
Blue
Brown
Yellow
MV
M
Orange
Red
Brown
Brown — Yellow
Brown — Red
Brown — Orange
Brown — Green
Green
Yellow
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20
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
Linear expansion valve
①Operation summary of the linear expansion valve.
• Linear expansion valves open/close through the use of a stepping motor after receiving the pulse signal from the indoor
controller board.
• Valve position can be changed in proportion to the number of pulse signals.
<Connection between the indoor controller board and the linear expansion valve>
Note : Since the number of the connector at the controller board side and the relay connector are different, follow the color of
the lead wire.
<Thermistor characteristic graph>
Thermistor <Room temperature detection> (TH21)
Thermistor <Liquid pipe temperature detection> (TH22)
Thermistor <Gas pipe temperature detection> (TH23)
Thermistor R0=15k' ±3%
Fixed number of B=3480K ± 2%
Rt=15exp { 3480( ) }
30_F 15.8k'
50_F 9.6k'
70_F 6.0k'
80_F 4.8k'
90_F 3.9k'
100_F 3.2k'
Drain sensor (DS)
Thermistor R0=6.0k ±5%
Fixed number of B=3390K ±2%
Rt=6exp { 3390( ) }
30_F 6.3k'
50_F 3.9k'
70_F 2.5k'
80_F 2.0k'
90_F 1.6k'
100_F 1.3k'
140_F 0.6k'
Thermistor for
lower temperature
1
273+(t-32)/1.8 1
273
1
273+(t-32)/1.8 1
273
Thermistor for
drain sensor
0
10
20
30
40
50
0-20 20 40 60 80 100 120
< Thermistor for lower temperature >
Temperature (°F)
Resistance (K")
20 40 60
80
100 120 140 170
< Thermistor for drain sensor >
Temperature (°F)
0
1
2
3
4
5
6
7
8
9
10
Resistance (K")
OC341--1new.qxp 05.6.1 5:16 PM Page 20