Mitsubishi Electric CITY MULTI PLFY-P12NBMU-E Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model names] [Service Ref.]
PLFY-P12NBMU-E
PLFY-P15NBMU-E
PLFY-P18NBMU-E
PLFY-P24NBMU-E
PLFY-P30NBMU-E
PLFY-P36NBMU-E
No. OCH421
REVISED EDITION-A
CONTENTS
1. TECHNICAL CHANGES.........................2
2. FEATURES............................................. 2
3. PART NAMES AND FUNCTIONS..........3
4. SPECIFICATIONS................................... 5
5. 4-WAY AIR FLOW SYSTEM...................9
6. OUTLINES AND DIMENSIONS............ 12
7. WIRING DIAGRAM...............................13
8.
REFRIGERANT SYSTEM DIAGRAM
......
14
9. MICROPROCESSOR CONTROL......... 15
10. TROUBLESHOOTING......................... 22
11. DISASSEMBLY PROCEDURE.............31
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
PLFY-P 12NBMU-E
PLFY-P 12NBMU-ER1
PLFY-P 15NBMU-E
PLFY-P 15NBMU-ER1
PLFY-P 18NBMU-E
PLFY-P 18NBMU-ER1
PLFY-P 24NBMU-E
PLFY-P 24NBMU-ER1
PLFY-P 30NBMU-E
PLFY-P 30NBMU-ER1
PLFY-P 36NBMU-E
PLFY-P 36NBMU-ER1
Note:
• This manual does not cover
outdoor units.
When servicing them, please
refer to the outdoor unit’s
service manual.
• RoHS compliant products
have <G> mark on the spec
name plate.
November 2008
INDOOR UNIT
Model name
indication
PARTS CATALOG (OCB421)
R410A / R22
Revision:
•PLFY-P12/15/18/24/30/36
NBMU-ER1 are added in
REVISED EDITION-A.
•Some descriptions have
been modified.
•Plase void OCH421.
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2
2FEATURES
4. i-see Sensor (OPTIONAL CORNER PANEL)
The i see sensor is a radiation temperature sensor originated from Mitsubishi’s new technology. In order to create a really
comfortable space in shops and offices, it is essential to control the temperature near the floor where occupants/visitors
gather. The i see sensor measures the infrared rays generated from the surrounding wall and floor surface at an angle of
360° and the infrared ray energy is computed to convert it into the value of temperature. In addition, the floor temperature
at distant spots (radiation temperature) is also measured to supply the optimum airflow to realize comfort which was never
experienced in the past.
Models Cooling capacity / Heating capacity
PLFY-P12NBMU-E 12,000 / 13,500 Btu/h
PLFY-P15NBMU-E 15,000 / 17,000 Btu/h
PLFY-P18NBMU-E 18,000 / 20,000 Btu/h
PLFY-P24NBMU-E 24,000 / 27,000 Btu/h
PLFY-P30NBMU-E 30,000 / 34,000 Btu/h
PLFY-P36NBMU-E 36,000 / 40,000 Btu/h
Indoor Unit
Operation image of "Wave Airflow"
HighLow
Automatic air
speed adjustment
Medium 2 Medium 1
1. WIDE AIRFLOW
The new wide shape vane capable of wide angle air supply provides comfort even at the corners of a room regardless
of cooling and heating operation. A reduction in the air speed by 20% compared to the conventional product eliminates
uncomfortable draft sensation for friendly air conditioning.
2. WAVE AIRFLOW SYSTEM (HEATING MODE)
The wave airflow system has 4 vanes where each vane runs independently. Repeating of horizontal and down blows with a
time lag allows the conditioned warm air to be distributed even to room corners thus preventing uneven room temperature
distribution.
3. AUTOMATIC AIR SPEED ADJUSTMENT MODE
The automatic air speed adjustment mode is provided in addition to the 4 air speed stages of "High/Medium 1/Medium 2/
Low." Air speed can be changed freely in accordance with a difference between the set temperature and the room tempera-
ture. The automatic air speed adjustment mode presents quick cooling of a room with the high mode, such as at the start-
ing up of cooling operation, for example. After the room temperature is stabilized, the low mode will be applied by automatic
switching to keep your comfort.
1TECHNICAL CHANGES
PLFY-P12NBMU-E PLFY-P12NBMU-ER1
PLFY-P15NBMU-E PLFY-P15NBMU-ER1
PLFY-P18NBMU-E PLFY-P18NBMU-ER1
PKFY-P24NBMU-E PLFY-P24NBMU-ER1
PKFY-P30NBMU-E PLFY-P30NBMU-ER1
PKFY-P36NBMU-E PLFY-P36NBMU-ER1
INDOOR CONTROLLER BOARD (I.B.) has been changed.
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3
3PART NAMES AND FUNCTIONS
Drain pipe
Filter
Vane
Gas pipe
Liquid pipe
Air outlet
i-see sensor
(option)
Air intake
(Intake grille)
Indoor unit
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
Operation Section
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
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4
●
●
°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.
“NOT AVAILABLE” 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
“One Hour Only” indicator
Room Temperature display
Shows the room temperature. The room
temperature display range is 46–102F.
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,
at which time the airflow direction
also changes.
The indicator shows the direc-
tion of the outcoming airflow.
Wired remote controller
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5
4-1. SPECIFICATIONS
4SPECIFICATIONS
*1 Nominal cooling conditionsNote: *2 Nominal heating conditions Unit converter
Indoor : 80degF D.B. / 67degF W.B. kcal/h = kW × 860
(26.7degC D.B. / 19.4degC W.B.)
70degF D.B.
(21.1degC D.B.) BTU/h = kW × 3,412
Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min × 35.31
(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg/0.4536
Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)
Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification
data is subject to
rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
1-phase 208-230V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
35
× 950 × 950
1-3/8 × 37-13/32 × 37-13/32
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6) 13 (6) 13 (6)
Cross fin
DC motor
Direct-drive
PS
PP honeycomb (long life filter, anti-bacterial type)
Fuse
LEV
R410A, R22 CITY MULTI
O.D. 1-1/4 (32) O.D. 1-1/4 (32) O.D. 1-1/4 (32)
Installation Manual, Instruction Book
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
258
× 840 × 840
10-3/16 × 33-3/32 × 33-3/32 10-3/16 × 33-3/32 × 33-3/32 10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840 258 × 840 × 840
3.5
12,000
0.03
0.22
4.0
13,500
0.02
0.14
49 (22) 49 (22) 51 (23)
PLP-40BAU PLP-40BAU PLP-40BAU
0.000 (208V) 0.000 (208V) 0.000 (208V)
0
—
—
—
—
—
—
0.000 (230V)
0
0.000 (230V)
0
0.000 (230V)
0
0.050
11.0 - 12.0 - 13.0 - 14.0
183 - 200 - 217 - 233
388 - 424 - 459 - 494
27 - 28 - 29 - 31 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
1/4 (6.35) Flare
1/4 (6.35) Flare
1/2 (12.7) Flare
1/2 (12.7) Flare
1/2 (12.7) Flare
1/2 (12.7) Flare
1/2 (12.7) Flare
5/8 (15.88) Flare
1/4 (6.35) Flare
1/4 (6.35) Flare
1/4 (6.35) Flare
3/8 (9.52) Flare
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
4.4
15,000
0.04
0.29
5.0
17,000
0.03
0.22
Turbo fan
× 1Turbo fan × 1 Turbo fan × 1
0
0.050
12.0 - 13.0 - 14.0 - 16.0
200 - 217 - 233 - 267
424 - 459 - 494 - 565
27 - 28 - 30 - 31 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
5.3
18,000
0.05
0.36
5.9
20,000
0.04
0.29
0
0.050
233 - 250 - 267 - 300
494 - 530 - 565 - 636
28 - 29 - 30- 32 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
14.0 - 15.0 - 16.0 - 18.0
Air outlet shutter plate
High efficiency filterelement
Multi-function casement
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H
× W × D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
(O.D.)
Field drain pipe size
Standard
attachment
Power input
Current input
Power input
Current input
Type x Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Optional parts
Remark
Installation
Model
External finish
Dimension
H
× W × D
Net weight
kW
BTU/h
kW
A
kcal/h
Btu/h
kW
A
mm
in.
Ibs (kg)
mm
in.
Ibs (kg)
Pa
in.WG
Pa
in.WG
kW
m3/min
L / s
cfm
dB <A>
dB <A>
dB <A>
in. (mm)
in. (mm)
in. (mm)
*1
*1
*2
*2
(R410A)
(R22)
(R22)
(R410A)
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6
*1 Nominal cooling conditionsNote: *2 Nominal heating conditions Unit converter
Indoor : 80degF D.B. / 67degF W.B. kcal/h = kW × 860
(26.7degC D.B. / 19.4degC W.B.)
70degF D.B.
(21.1degC D.B.) BTU/h = kW × 3,412
Outdoor : 95degF D.B. 47degF D.B. / 43degF W.B. cfm = m3/min × 35.31
(35degC D.B.) (8.3degC D.B. / 6.1degC W.B.) lbs = kg/0.4536
Pipe length : 25 ft. (7.6 m) 25 ft. (7.6 m)
Level difference : 0 ft. (0 m) 0 ft. (0 m) *Above specification
data is subject to
rounding variation.
*Due to continuing improvement, above specification may be subject to change without notice.
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840
51 (23)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
5/8 (15.88) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
7.0
24,000
0.06
0.43
7.9
27,000
0.05
0.36
Turbo fan × 1Turbo fan × 1Turbo fan × 1
0
0.050
15.0 - 16.0 - 18.0 -20.0
250 - 267 - 300 - 333
530 - 565 - 636 - 706
28 - 30 - 32 - 34 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840
51 (23)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
5/8 (15.88) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
8.8
30,000
0.07
0.51
10.0
34,000
0.06
0.43
0
0.050
16.0 - 18.0 - 20.0 - 22.0
267 - 300 - 333 - 367
565 - 636 - 706 - 777
30 - 32 - 35 - 37 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
35 × 950 × 950
1-3/8 × 37-13/32 × 37-13/32
13 (6)
O.D. 1-1/4 (32)
11-3/4 × 33-3/32 × 33-3/32
298 × 840 × 840
60 (27)
PLP-40BAU
0.000 (208V)
—
—
0.000 (230V)
0
3/4 (19.05) Flare
5/8 (15.88) Flare
3/8 (9.52) Flare
3/8 (9.52) Flare
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
10.5
36,000
0.16
1.07
11.7
40,000
0.15
1.00
0
0.120
22.0 - 25.0 - 28.0 - 30.0
367 - 417 - 467 - 500
777 - 883 - 989 - 1,059
35 - 38 - 41 - 43 (208-230V)
PAC-SH51SP-E
PAC-SH59KF-E
PAC-SH53TM-E
Air outlet shutter plate
High efficiency filterelement
Multi-function casement
Model
Power source
Cooling capacity
(Nominal)
Heating capacity
(Nominal )
External finish
External dimension H × W × D
Net weight
Decoration panel
Heat exchanger
FAN
Noise level (Low-Mid2-Mid1-High)
(measured in anechoic room)
Insulation material
Air filter
Protection device
Refrigerant control device
Connectable outdoor unit
Diameter of
refrigerant pipe
(O.D.)
Field drain pipe size
Standard
attachment
Power input
Current input
Power input
Current input
Type × Quantity
External
static press.
Motor type
Motor output
Driving mechanism
Airflow rate
(Low-Mid2-
Mid1-High)
Liquid
Gas
Document
Accessory
Optional parts
Remark
Installation
Model
External finish
Dimension
H × W × D
Net weight
kW
BTU/h
kW
A
kcal/h
Btu/h
kW
A
mm
in.
Ibs (kg)
mm
in.
Ibs (kg)
Pa
in.WG
Pa
in.WG
kW
m3/min
L/s
cfm
dB <A>
dB <A>
dB <A>
in. (mm)
in. (mm)
in. (mm)
*1
*1
*2
*2
(R410A)
(R22)
(R22)
(R410A)
1-phase 208-230V 60Hz
Galvanized steel sheet
MUNSELL (6.4Y 8.9/0.4)
Cross fin
DC motor
Direct-drive
PS
PP honeycomb (long life filter, anti-bacterial type)
Fuse
LEV
R410A, R22 CITY MULTI
Installation Manual, Instruction Book
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7
4-2. SOUND LEVEL
* Measured in anechoic room.
PLFY-P-NBMU-E
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
27-28-29-31
27-28-30-31
28-29-30-32
28-30-32-34
30-32-35-37
35-38-41-43
Sound level dB (A)
Sound level at anechoic room : Low-Mid2-Mid1-High
5 ft (1.5m)
Measurement location
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
External static pressure : 0Pa
Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
External static pressure : 0Pa
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
External static pressure : 0Pa
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
External static pressure : 0Pa
Power source : 208,230V, 60Hz
Power source : 208,230V, 60Hz Power source : 208,230V, 60Hz
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
External static pressure : 0Pa
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
External static pressure : 0Pa
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
Middle2 60Hz
High 60Hz
Low 60Hz
Middle1 60Hz
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
10.0
15.0
20.0
25.0
30.0
35.0
40.0
45.0
50.0
55.0
60.0
65.0
70.0
63 125 250 500 1k 2k 4k 8k
NC-60
NC-50
NC-40
NC-20
NC-30
Octave band pressure level (dB) 0dB=20Pa
Octave band center frequencies (Hz)
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
Approximate minimum
audible limit on
continuous noise
4-3. NC CURVES
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8
4-4. ELECTRICAL PARTS SPECIFICATIONS
Parts name
Service Ref.
Symbol
TH21
TH22
TH23
FUSE
MF
MV
DP
FS
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 6.3A
(L1, L2, GR) 330V 30A
(M1, M2, S) 250V 20A
(1, 2) 250V 10A
Liquid pipe thermistor
Gas pipe thermistor
Vane motor
Drain-up mechanism
Drain float swich
Linear expansion valve
PLFY-P12NBMU-E
PLFY-P12NBMU-ER1
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
PLFY-P15NBMU-E
PLFY-P15NBMU-ER1
PLFY-P24NBMU-E
PLFY-P24NBMU-ER1
PLFY-P30NBMU-E
PLFY-P30NBMU-ER1
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
Room temperature
thermistor
Fuse
(Indoor controller board)
Fan motor
Power supply terminal
block
Transmission terminal
block
MA remote controller
terminal block
8-pole OUTPUT 50W 8-pole OUTPUT,
120W
MSBPC20M04
DC12V 300
 /phase
PLD-12230ME-1
INPUT 12/10.8W 241/Hr
Open/short detection
DC12V Stepping motor drive port dimension :3.2 (0~2000pulse)
EDM-40YGME
DC12V Stepping motor drive port
dimension :
5.2 (0~2000pulse)
EDM-80YGME
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9
54-WAY AIR FLOW SYSTEM
5-1. PLACEMENT OF THE AIR OUTLETS
• For this grille, the blowout direction comes in 11 patterns.
Also, by setting the remote controller to the appropriate settings, you can adjust the air flow and speed. Select the settings
from Table1 according to the location in which you want to install the unit.
1) Decide on the pattern of the airflow direction.
Blowout direction
pattern
4-direction<Table 1> 3-direction 2-direction
Note: For 3 and 2-direction settings, please use the air outlet shutter plate (option).
Pattern 1 Initial setting Pattern 4 One air outlet
fully closed
Pattern 6 2 air outlet
fully closed

Silent
2.5m, 8.2ft
2.7m, 8.9ft
3.0m, 9.8ft

Standard
2.7m, 8.9ft
3.0m, 9.8ft
3.3m, 10.8ft

High ceiling
3.5m, 11.5ft
3.5m, 11.5ft
3.5m, 11.5ft
4 direction
3 direction
2 direction
SWA
SWB
PLFY-P12·P15·P18·P24·P30NBMU-E(R1)
PLFY-P36NBMU-E(R1)




Silent
2.7m, 8.9ft
3.0m, 9.8ft
3.3m, 10.8ft

Standard
3.2m, 10.5ft
3.6m, 11.8ft
4.0m, 13.1ft

High ceiling
4.5m, 14.8ft
4.5m, 14.8ft
4.5m, 14.8ft
4 direction
3 direction
2 direction
SWA
SWB



2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set up the switches
(SWA, SWB) on the address board to the appropriate setting.
• Correspondence of ceiling heights to numbers of air outlets
SW14
SW11
SW12
12345678910
ON
OFF
SW1
SWC
CN82
CN43
3
2
SWA
1
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
(10ths DIGIT) (1s DIGIT)
./ .
(BRANCH No.)
2
3
SWB
4
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10
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 10m (33ft).
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.
Installation at site
CN51
on
indoor
controller
board Red
Brown
1
~
CN51
MB
5-3. OPERATION IN CONJUNCTION WITH
DUCT FAN (Booster fan)
• Whenever the indoor unit is operating, the duct fan also
operates.
(1) Connect the optional multiple remote controller adapter
(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.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (For DC 12V, coil rating: 1.0W or smaller)
Branch duct hole



14-:1/8 (:2.8) burring hole
Indoor unit
:5-29/32 (:150) cut out hole
Fresh air intake hole
:6-7/8 (:175) burring hole pitch
Drain pipe
Fresh air intake hole diagram
Unit : inch(mm)
Refrigerant pipe
3-:1/8 (:2.8) burring hole
Branch duct hole diagram
(view from either side)
:4-29/32 (:125) burring hole pitch
3-:15/16 (:100) cut out hole
Ceiling
6-7/32
(*158)
120
120
13-25/32 (350)
3-17/32
(90)
3-15/16
(100)
3-15/16
(90)
3-17/32
(90)
70
3-15/16 (100) 5-1/8 (130)
*6-3/32 (155)
*6-9/16 (167)
5-2. BRANCH DUCT HOLE AND FRESH AIR INTAKE HOLE
At the time of installation, use the duct holes (cut out) located at the positions shown in following diagram, as and when
required.
• A fresh air intake hole for the optional multi function casement can also be made.
Note:
The figures marked with * in the drawing below represent the dimensions of the main unit excluding those of the optional
multi function casement.
When installing the optional multi function casement, add 5-5/16” (135 mm) to the dimensions marked on the figure.
When installing the branch ducts, be sure to insulate adequately.
Otherwise, condensation and dripping may occur.
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11
2 - inlet
1 - inlet
2 - inlet
1 - inlet
2 - inlet
1 - inlet
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
012
50 100 150 200
[CFM]
3456
[CMM]
2 - inlet
1 - inlet
Air flow rate
Static pressure [Pa(in.W.G.%10-2)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
012
50 100 150 200
[CFM]
3456
[CMM]
Static pressure [Pa(in.W.G.%10-2)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
012
50 100 150 200
[CFM]
3456 [CMM]
Air flow rate
Static pressure [Pa(in.W.G.%10-2)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0
50(20)
02
50 100 150 200 250
[CFM]
48 [CMM] 6
Air flow rate
Static pressure [Pa(in.W.G.%10-2)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
0 0
50(20)
02
50 100 150 200 250
[CFM]
48 [CMM] 6
Air flow rate
Static pressure [Pa(in.W.G.%10-2)]
-200(-80)
-150(-60)
-100(-40)
-50(-20)
50(20)
02
50 100 150 200 250
[CFM]
48 [CMM] 6
Air flow rate
Static pressure [Pa(in.W.G.%10-2)]
2PLFY-P36NBMU-E(R1)
Multifunction casement + Standard filter Multifunction casement + High efficiency filter
Taking air into the unit
Taking air into the unit
5-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
1PLFY-P12 · P18 · P24 · P30NBMU-E(R1)
Multifunction casement + High efficiency filter Multifunction casement + Standard filter
Q
0
BA
C
1Curve in the
graphs.
Duct characteristics
at site
Q
A
EC
2
Q
Qa
AD
3
Q…Designed amount of fresh air intake
<CMM (CFM)>
A…Static pressure loss of fresh air
intake duct system with air flow
amount Q <Pa (in.W.G.o10-2)>
B…Forced static pressure at air condi-
tioner inlet with air flow amount Q
<Pa (in.W.G.o10-2)>
C…Static pressure of booster fan with air
flow amount Q <Pa (in.W.G.o10-2)>
D…Static pressure loss increase amount
of fresh air intake duct system for air
flow amount Q <Pa (in.W.G.o10-2)>
E…Static pressure of indoor unit with air
flow amount Q <Pa (in.W.G.o10-2)>
Qa…Estimated amount of fresh air
intake without D <CMM (CFM)>
How to read curves
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12
6OUTLINES AND DIMENSIONS
14-27/3211-3/16
2-3/8
+5 0
+35 -5
(187.5) (160)
(160)
(7.5)
(950)
(500)
Keep 25/64(10) to 19/32(15)
between unit ceiling
and ceiling slab.
Note:
1. Please choose the Grille from a standard grille.
2. As for drain pipe, please use VP-25 (O.D. :1-1/4(:32) PVC TUBE.)
Drain pump is included.
Max. lifting height is 70-7/18 (850mm) from the ceiling.
3. As for suspension bolt, please use M10 or W3/8. (Procured at local site)
4. Electrical box may be removed for the service purpose.
Make sure to slack the electrical wire little bit for control/power wires connection.
5. The height of the indoor unit is able to be adjusted with the grille attached.
6. For the installation of the optional high efficiency filter or optional multi-functional
casement.
1) Add 5-5/16"(135mm) to the dimensions marked on the figure.
2) The optional high efficiency filter becomes optional multi-functional casement
and concomitant use.
7. When installing the branch ducts, be sure to insulate adequately.
Otherwise condensation and dripping may occur.
(It becomes the cause of dew drops/water dew.)
8. As for necessary installation/service space, please refer to the left figure.
Grille
Indoor unit
Ceiling
Floor
Min.94-1/2(2400)
from floor
Min.19-11/16(500)
Entire
periphery
(36)
(83)
(36) (83)
(500)
(950)
(597)
(597)
(+158)
(ø175) (350)
(130)
(100)
(90)
(100)
(90)
(100)
(77)
3-1/32
(85)
3-11/32
(298)
11-3/4
11-1/16
(281)
(74)(80)(258)(241)
2-29/32
3-5/32
10-3/16
PLFY-P36NBMU-E
PLFY-P24NBMU-E
PLFY-P30NBMU-E
(35)
(17 )
+3/16 0
(190)
(156)
(50~70)
(140)
(170)
(377)
(284)
(60)
(24)
(840)
(160)
(20~45)
to 1-25/32
(620)
(605 )
-3/16 +1-3/8
(90)
(150)
(160)
(7.5)
(20~45)
1-25/32
Corner pocket
In case of wireless remote controller
In case of standard grille
9-1/2
Drain hole
Drain pump clean hole
and Drain emergency
drainage hole
For MA-Remote controller
terminal block
Emergency operation switch <Cooling>
and Emergency Up/Down switch <Up>
Emergency operation switch <Heating>
and Emegency Up/Down switch <Down>
Ceiling
Cut out hole
Burring hole pitch
3-ø1/8(3-ø2.8)
Burring hole
Detail drawing of fresh air intake hole
Burring hole
14-ø1/8(14-ø2.8)
Cut out hole
Burring hole pitch
Cut out hole
Detail connecting of branch duct (Both aspects)
Refrigerant pipe ø15.88 / ø19.05
Flared connection 5/8F / 3/4F
(compatible)
DCBA
Refrigerant pipe ø12.7 / ø15.88
Flared connection 1/2F / 5/8F
(compatible)
Refrigerant pipe ···ø15.88
Flared connection ···5/8F
Refrigerant pipe ···ø12.7
Flared connection ···1/2F
Refrigerant pipe
···ø6.35
Flared connection
···1/4F
Refrigerant pipe
ø6.35 / ø9.52
Flared connection
1/4F / 3/8F
(compatible)
PLFY-P18NBMU-E
Refrigerant pipe
···ø9.52
Flared connection
···3/8F
Models
PLFY-P12NBMU-E
PLFY-P15NBMU-E
PLFY-P18NBMU-ER1
Suspension bolt
lower edge
Vane motor
Air intake
grille
Air outlet hole
Air outlet hole
Auto vane
(Air outlet)
Air intake hole
Air intake hole
Grille
Ceiling
)(
Connected the attached
flexible pipe or socket.
Drain pipe
connected to VP-25
Suspension bolt
M10 or W3/8
Branch duct hole
Fresh air
intake hole
Branch
duct hole
Ceiling hole
Suspension bolt pitch
Suspension bolt pitch
Ceiling hole
(5/16)(5/16) 23-13/16
24-13/32
DEFROST/STAND BY lamp
Receiver
Operation lamp
6-5/16
6-16/5
1
2
3-15/16
5-1/8
13-25/32
3-17/32
3-15/16 3-15/16
3-17/32
70
+6-9/16(167)
+6-3/32(155)
ø5-29/32(ø150)
6-7/8
19-11/16
19-11/16
23-1/2
M
M
M
M
3-17/64
1-27/64
37-3/8
3-17/64
1-27/64
37-3/8 23-1/2
1-31/32 to 2-3/4
+5-1/2
+6-11/16
1-3/8
11/16
+4-1/8(105)
+6-9/64
+7-15/32
A
+B
6-5/16
33-1/16(840)
5-29/32
3-17/32
C
D
33-1/16
7-3/8
25/32~1-25/32(20~45) 33-27/32 to 35-13/16(860~910) 25/32 to 1-25/32(20~45)
31-7/8(810)
25/32 to
33-27/32 to 35-13/16(860~910)25/32
15/16
6-5/16
Indoor unit/Outdoor unit
connecting terminal block
ø4-29/32(ø125)
ø3-15/16(ø100)
6-7/32
120
120

PLFY-P36NBMU-ER1
Refrigerant pipe ···ø15.88
Flared connection ···5/8F
For wiring replacement kit
terminal block
PLFY-P12NBMU-E(R1) PLFY-P15NBMU-E(R1) PLFY-P18NBMU-E(R1) Unit : inch (mm)
PLFY-P24NBMU-E(R1) PLFY-P30NBMU-E(R1) PLFY-P36NBMU-E(R1)
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13
WIRING DIAGRAM
7
PLFY-P12NBMU-E(R1) PLFY-P15NBMU-E(R1) PLFY-P18NBMU-E(R1)
PLFY-P24NBMU-E(R1) PLFY-P30NBMU-E(R1) PLFY-P36NBMU-E(R1)
CN27
CN32
CN51
CN52
SW2
SW3
SW4
SWE
ZNR01,02
DSA
FUSE
X1
LED1
LED2
MF
MV
DP
FS
TB2
TB5
TB15
TH21
TH22
TH23
LEV
SW1
SW11
SW12
SW14
SWA
SWB
SWC
W.B
RU
BZ
LED1
LED2
SW1
SW2
POWER SUPPLY
TRANSMISSION
MA-REMOTE CONTROLLER
ROOM TEMP. DETECTION
(0/15k, 25/5.4k)
PIPE TEMP. DETECTION / LIQUID
(0/15k, 25/5.4k)
PIPE TEMP. DETECTION / GAS
(0/15k, 25/5.4k)
FAN MOTOR
VANE MOTOR
DRAIN-UP MACHINE
DRAIN FLOAT SWITCH
TERMINAL
BLOCK
THERMISTOR
LINEAR EXPANSION VALVE
I. B
Mark
LED1
Main power supply
Power supply for
MA-Remote controller
Main Power supply (Indoor unit:208-230V)
power on lamp is lit.
Power supply for MA-Remote controller
on lamp is lit.
LED2
Meaning Function
INDOOR CONTROLLER BOARD
CONNECTOR DAMPER
REMOTE SWITCH
CENTRALLY CONTROL
REMOTE INDICATION
CAPACITY CODE
MODE SELECTION
MODEL SELECTION
DRAIN-UP MACHINE (TEST MODE)
SWITCH
VARISTOR
SURGE ABSORBER
FUSE (T6.3AL250V)
AUX. RELAY
POWER SUPPLY (I. B)
POWER SUPPLY (I. B)
DRAIN WATER LIFTING-UP MACH.
SYMBOL
A. B
OPTION PART
ADDRESS BOARD
SWITCH
MODE SELECTION
ADDRESS SETTING 1s DIGIT
ADDRESS SETTING 10ths DIGIT
BRANCH NO.
CEILING HEIGHT SELECTOR
DISCHARGE OUTLET NUMBER
SELECTOR
OPTION SELECTOR
PCB FOR WIRELESS REMOTE CONTROLLER
RECEIVING UNIT
BUZZER
LED (OPERATION INDICATION: GREEN)
LED (PREPARATION FOR HEATING: ORANGE)
EMERGENCY OPERATION (HEAT/DOWN)
EMERGENCY OPERATION (COOL/UP)
SYMBOLNAME SYMBOL NAME NAME
NOTES:
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 dip switches differs in the capacity. For the detail, refer to fig.<+1>.
[LEGEND]
LED on indoor board for service
+2.Use copper supply wires.
+2
ADDRESS
CN81
(RED)
ADDRESS
CN42
(RED)
BZ
WHT
YLW
ORN
BLU
RED BRN
LEV
LED2
SW1
CNB
54
MT
I-SEE SENSOR CORNER PANEL
(OPTION PART)
I-SEE
SENSOR
TO MA-REMOTE
CONTROLLER
DC8.7-13V
TB15
1
BLU
BLU
2
SW2 LED1
RU
W.B
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
VANE CNV
(WHT)
5555
MMMM
MVMVMV
MV
GRILLE
Pair No.
J41J42
13
CN32
(WHT)
1
16
3
LED2
81 41
4
18
8
1
A.B
I.B
4
(RED)
ADDRESS
CN43
(RED)
ADDRESS
CN82
SWBSWA
SWC
10ths DIGIT 1s DIGIT
SW14
BRANCH
No.


3
2
1
12345678910
2
3
4
SW12 SW11
SW1
ON
OFF
91
WIRELESS
CN90
(WHT)
1
9
4
LIQUID/PIPE
CN44
(WHT)
TH23TH22
tt
14
FS
12
INTAKE
CN20
(RED)
t
12
FLOAT SW
CN4F
(WHT)
CN27
(RED)
12 12
13
LED1
CN25
(WHT)
CN24
(YLW) CN3G
(BLK)
714
FAN
CNMF
(WHT)
MF
MS
3~
31
DP
M
1~
M
M
D.U.M
CNP
(BLU)
31
CNAC
(WHT)
U
U
ZNR02
ZNR01
DSA
135
FUSE
CND
DC311~339V
RECTIFICATION
X1
21
M-NET
CN2M
(BLU)
BLU
BLU
M1
M2
TB5
(SHIELD)
TO OUTDOOR UNIT
BC CONTROLLER
REMOTE CONTROLLER
DC24-30V
S
L1
L2
GR
TB2
RED
BLU
GRN/YLW TO NEXT
INDOOR UNIT
PULL BOX
FUSE(16A)
BREAKER
(16A)
POWER SUPPLY
~/N 208-230V 60Hz
+Be sure to turn off the source power
and then disconnect fan motor connector.
(Failure to do so will cause trouble in Fan motor)
TH21
SW3 SW4
SWE
SW2
ON
OFF
ON
OFF
ONOFF
12345678910 12345612345
See fig:+1
16
6
14
141515
LEV
CN60
(WHT)
MA REMOCON
CN3A
(BLU)
I-SEE SENSOR
CN4Y
(WHT)
CN41
(WHT)
CN51
(WHT)
CN52
(GRN)
I-SEE SENSOR MOTOR
CN6Y
(RED)
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
ON
OFF
123456
P12
MODELS MODELS
<+1>
SW2 SW2
P15
P18
P24
P30
P36
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
0
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
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14
8 REFRIGERANT SYSTEM DIAGRAM
Refrigerant flow in cooling
Refrigerant flow in heating
Strainer (#100mesh)
Strainer (#100mesh)
Strainer1 (#50mesh)
Strainer2 (#100mesh)
Heat exchanger
Room temparature thermistor TH21
Gas pipe thermistor TH23
Liquid pipe thermistor TH22
Linear expansion valve
Gas pipe
Liquid pipe
Flare connection
Gas pipe
Liquid pipe
PLFY-P12/P15NBMU-E
PLFY-P12/P15NBMU-ER1
:12.7 (1/2'')
:6.35 (1/4'')
PLFY-P18NBMU-E
PLFY-P18NBMU-ER1
:12.7 (1/2'')/:15.88 (5/8'')
:6.35 (1/4'')/:9.52 (3/8'')
PLFY-P24/P30NBMU-E
PLFY-P24/P30NBMU-ER1
:15.88 (5/8'')
:9.52 (3/8'')
PLFY-P36NBMU-E
PLFY-P36NBMU-ER1
:15.88 (5/8'')/:19.05 (3/4'')
:9.52 (3/8'')
Item
Model
Unit : mm (inch)
PLFY-P12NBMU-E(R1) PLFY-P15NBMU-E(R1) PLFY-P18NBMU-E(R1)
PLFY-P24NBMU-E(R1) PLFY-P30NBMU-E(R1) PLFY-P36NBMU-E(R1)
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15
MICROPROCESSOR CONTROL9
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
ûF ûC
ûF ûC
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
9-1. COOL OPERATION
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display COOL.
3 Press 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. Thermoregulating function (Function to prevent restarting for 3 minutes)
• 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 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.
 Liquid pipe temp. (TH22) turns 50°F or above.
 The condition of the thermo OFF has become complete
by thermoregulating, etc.
 The operation modes became mode other than COOL.
The operation stopped.
By the remote controller setting (switch of 4 speeds+Auto)
When [Auto] is set, fan speed is changed depending on the value of:
Room temperature - Desired temperature
2. Fan
1. Thermoregulating
function
Remarks
Type Fan speed notch
[Low], [Med2], [Med1], [High], [Auto]
4 speeds + Auto type
To be continued on the next page.
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16
→
Control modes Control details
3-1. Drain pump control
•Always drain pump ON during the COOL and DRY mode operation.
(Regardless of the thermo ON/OFF)
•When the operation mode has changed from the COOL or DRY to the others
(including Stop), OFF the control after the drain pump ON for 3 minutes.
Float switch control
• Float switch control judges whether the sensor is in the air or in the water by
turning the float switch ON/OFF.
In the water: Detected that the float switch is ON for 15 seconds.
In the air : Detected that the float switch is OFF for 15 seconds.
(1)Initial setting: Start at COOL mode and horizontal vane.
(2)Vane position:
Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto
(3)Restriction of the downward vane setting
When setting the downward vane A, B, C or D in [Med1], [Med2] or [Low] of the
fan speed notch, the vane changes to horizontal position after 1 hour have passed.
4. Vane
(up/down vane change)
3. Drain pump
Remarks
· "ONLY 1 Hr"
appears on the
wired remote
controller.
ON
OFF
15sec. 15sec. 15sec. 1min.30sec. 1min.30sec.
From the preceding page.
Float SW
In the water In the air In the water Error
postponement
Drain pump
abnormal
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17
Control modes Control details
1-1. Thermo regulating function (Function to prevent restarting for 3 minutes)
Setting the Dry thermo by the thermo regulating signal and the room
temperature (TH21).
Dry thermo ON Room temperature  desired temperature + 2°F
Dry thermo OFF Room temperature desired temperature
1-2. Frozen prevention control
No control function
Indoor fan operation controlled depends on the compressor conditions.
3. Drain pump
1. Thermo regulating
function
Remarks
Room
temperature
3 min. passed since starting operation
Thermo regulating signal
Room temperature (T1)
Dry thermo
ON
time (min)
Dry thermo
OFF
time (min)
Less than 64F
Over 64F
ON
OFF
T1 83°F
83°F > T1 79°F
79°F > T1 75°F
75°F > T1
Unconditional
93
73
53
33
10
3
Dry thermo OFF
2. Fan
Note: Remote controller setting is not acceptable.
Dry thermo Fan speed notch
Excluding the following
Room temp. < 64°F
ON
OFF
[Low]
[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
ûF ûC
ûF ûC
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
9-2. DRY OPERATION
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display DRY.
3 Press 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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18
Control modes Control details
Set by remote controller.
When [Auto] is set, fan speed becomes [Low].
2. Drain pump
Remarks
1. Fan
Type Fan speed notch
4 speeds + Auto type [Low], [Med2], [Med1], [High], [Auto]
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 met:
ON for 3 minutes after the operation mode is switched from COOL or DRY to
another operation mode (FAN).
ON for 6 minutes after the float switch is submerged in the water when the
float swich control judges the sensor is in the water.
2-2. Float switch control
• Float switch control judges whether the sensor is in the air or in the water by
turning the float switch ON/OFF.
In the water : Detected that the float switch is ON for 15 seconds.
In the air : Detected that the float switch is OFF for 15 seconds.
Same as the control performed during the COOL operation, but with no restriction
on the vane's downward blow setting
· Same control
as COOL
operation
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
ûF ûC
ûF ûC
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
9-3. FAN OPERATION
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display FAN.
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19
Control modes Control details
1-1. Thermoregulating function (Function to prevent restarting for 3 minutes)
•
Room temperature desired temperature -2°F ···Thermo ON
•
Room temperature  desired temperature ···Thermo OFF
1. Thermoregulating
function
Remarks
2-1. Hot adjust mode
The fan controller becomes the hot adjuster mode for the following conditions.
When starting the HEAT operation

When the thermoregulating function changes from OFF to ON.
When release the HEAT defrosting operation
2. Fan
A: Hot adjust mode starts.
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 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.
· This control is
same for the
model without
auxiliary heater.
*1
"STAND BY"
will be displayed
during the hot
adjust mode.
To be continued on the next page.
By the remote controller setting (switch of 4 speeds+Auto)
When [Auto] is set, fan speed is changed depending on the value of:
Desired temperature - Room temperature
Give priority to under-mentioned controlled mode
2-1. 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)
Type Fan speed notch
[Low], [Med2], [Med1], [High], [Auto]
4 speeds + Auto type
PAR-21MAA
ON/OFF
FILTER
CHECK
OPERATION
CLEAR
TEST
TEMP.
MENU
BACK DAY
MONITOR/SET
CLOCK
ON/OFF
ûF ûC
ûF ûC
ERROR CODE
AFTER
TIMER
TIME SUN MON TUE WED THU FRI SAT
ON
OFF
Hr
AFTER
FILTER
FUNCTION
ONLY1Hr.
WEEKLY
SIMPLE
AUTO OFF
9-4. HEAT OPERATION
<How to operate>
1 Press POWER ON/OFF button.
2 Press the operation MODE button to display HEAT.
3 Press 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 during the hot adjust mode.
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20
→
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.
(1) Initial setting: OFF →HEAT···[last setting]
When the last setting is [Swing] ··· [Downward D]
When changing the mode from exception of HEAT to HEAT operation
···[Downward D]
(2) Vane position:
Horizontal →Downward A →Downward B →Downward C→Downward D→Swing→Auto
(3) Restriction of vane position
The vane is horizontally fixed for the following modes.
(The control by the remote controller is temporally invalidated and control by
the unit.)
•Thermo OFF
•Hot adjust [Extra low] mode
•Heat defrost mode
3. Drain pump
4. Vane control
(Up/down vane
change)
From the preceding page
3-1. Drain pump control
The drain pump turns ON for the specified amount of time when any of the following
conditions is met:
ON for 3 minutes after the operation mode is switched from COOL or DRY to
another operation mode (FAN).
ON for 6 minutes after the float switch is submerged in the water when the
float swich control judges the sensor is in the water.
3-2. Float switch control
• Float switch control judges whether the sensor is in the air or in the water by
turning the float switch ON/OFF.
In the water: Detected that the float switch is ON for 15 seconds.
In the air : Detected that the float switch is OFF for 15 seconds.
· Same control as
COOL operation
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