Mitsubishi Electric City Multi Series Operating manual

TECHNICAL & SERVICE MANUAL
Indoor unit
[Model Name] [Service Ref.]
PLFY-EP06NEMU-E
PLFY-EP08NEMU-E
PLFY-EP12NEMU-E
PLFY-EP15NEMU-E
PLFY-EP18NEMU-E
PLFY-EP18NEMU-E1
PLFY-EP24NEMU-E
PLFY-EP30NEMU-E
PLFY-EP36NEMU-E
PLFY-EP48NEMU-E
CONTENTS
1. SAFETY PRECAUTION.......................... 2
2. PARTS NAMES AND FUNCTIONS........4
3. SPECIFICATIONS.................................12
4. 4-WAY AIRFLOW SYSTEM..................18
5. OUTLINES AND DIMENSIONS............ 21
6. WIRING DIAGRAM...............................22
7.
REFRIGERANT SYSTEM DIAGRAM
......
23
8. MICROPROCESSOR CONTROL......... 24
9. TROUBLESHOOTING........................ 31
10. DISASSEMBLY PROCEDURE........... 39
PLFY-EP06NEMU-E
PLFY-EP08NEMU-E
PLFY-EP12NEMU-E
PLFY-EP15NEMU-E
PLFY-EP18NEMU-E
PLFY-EP18NEMU-E1
PLFY-EP24NEMU-E
PLFY-EP30NEMU-E
PLFY-EP36NEMU-E
PLFY-EP48NEMU-E
INDOOR UNIT
Model name
indication for
MAIN UNIT PARTS CATALOG (OCB610)
R410A
INDOOR UNIT FOR VRF SYSTEM
February 2019
No. OCH610
Model name
indication for
GRILLE
REVISED EDITION-G
Notes:
• Some descriptions
have been modified in
REVISED-EDITION-G.
OCH610 REVISED EDITION-F
is void.

2
OCH610G
1
CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Charge refrigerant from liquid phase of gas
cylinder.
If the refrigerant is charged from gas phase, composition
change may occur in refrigerant and the efficiency will be
lowered.
Do not use refrigerant other than R410A.
If other refrigerant (R22, etc.) is used, chlorine in refrige-
rant can cause deterioration of refrigerant oil, etc.
Use a vacuum pump with a reverse flow check
valve.
Vacuum pump oil may flow back into refrigerant cycle and
that can cause deterioration of refrigerant oil, etc.
Use the following tools specifically designed for
use with R410A refrigerant.
The following tools are necessary to use R410A refrigerant.
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigera-
nt will change and the efficiency will be lowered.
Flare tool
Electronic refrigerant
charging scale
Vacuum pump adaptor
Size adjustment gauge
Gauge manifold
Torque wrench
Gas leak detector
Charge hose
Tools for R410A
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of com-
pressor.
If large amount of mineral oil enters, that can cause deterio-
ration of refrigerant oil, etc.
Do not use the existing refrigerant piping.
The old refrigerant and lubricant in the existing piping
contains a large amount of chlorine which may cause the
lubricant deterioration of the new unit.
Use “low residual oil piping”
If there is a large amount of residual oil (hydraulic oil, etc.)
inside the piping and joints, deterioration of the lubricant
will result.
Store the piping indoors, and keep both ends of
the piping sealed until just before brazing.
(Leave elbow joints, etc. in their packaging.)
The refrigerant oil applied to flare and flange
connections must be ester oil, ether oil or
alkylbenzene oil in a small amount.
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Never use any refrigerant other than that specified.
Doing so may cause a burst, an explosion, or fire when the
unit is being used, serviced, or disposed of.
Correct refrigerant is specified in the manuals and on the
spec labels provided with our products.
We will not be held responsible for mechanical failure,
system malfunction, unit breakdown or accidents caused
by failure to follow the instructions.
Use the specified refrigerant only.
SAFETY PRECAUTION

3
OCH610G 3
[1] Cautions for service
(1) Perform service after recovering the refrigerant left in unit completely.
(2) Do not release refrigerant in the air.
(3) After completing service, charge the cycle with specified amount of refrigerant.
(4) When performing service, install a filter drier simultaneously.
Be sure to use a filter drier for new refrigerant.
[2] Additional refrigerant charge
When charging directly from cylinder
· Check that cylinder for R410A on the market is a syphon type.
· Charging should be performed with the cylinder of syphon standing vertically. (Refrigerant is charged from liquid phase.)
Electronic weighing scale
Unit
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No. Tool name Specifications
1Gauge manifold · Only for R410A
· Use the existing fitting specifications. (UNF1/2)
· Use high-tension side pressure of 768.7 PSIG [5.3MPa.G] or over.
2Charge hose · Only for R410A
· Use pressure performance of 738.2 PSIG [5.09MPa.G] or over.
3Electronic weighing scale
4Gas leak detector · Use the detector for R134a, R407C or R410A.
5Adaptor for reverse flow check · Attach on vacuum pump.
6Refrigerant charge base
7Refrigerant cylinder · Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
8Refrigerant recovery equipment

4
OCH610G
2PARTS NAMES AND FUNCTIONS
Drain pipe
Filter
Vane
Gas pipe
Liquid pipe
Air outlet
i-see Sensor
Air intake
(Intake grille)
2-1. Indoor Unit
2-2. Wired Remote Controller <PAR-40MAA> <PAC-YT53CRAU>
: Supported : Unsupported
Function PAR-40MAA PAC-YT53CRAU
Slim CITY MULTI
Body Product size H × W × D (mm) 120 × 120 × 14.5 120 × 70 × 14.5
LCD Full Dot LCD Partial Dot LCD
Backlight
Energy saving Energy saving operation schedule
Automatic return to the preset temperature
Restriction Setting the temperature range restriction
Function* Operation lock function
Weekly timer
ON/OFF timer
High Power
Manual vane angle
*Some functions may not be available depending on model types.
Wired remote controller function
The functions which can be used are restricted according to each model.

5
OCH610G 5
2-2-1. Wired Remote Controller <PAR-40MAA>
Function buttons
MENU
ON
OFF
RETURN SELECT
HOLD
When the backlight is off, pressing any button turns the backlight on
and does not perform its function. (except for the [ON/OFF] button)
The functions of the function buttons change depending on the
screen.
Refer to the button function guide that appears at the bottom of
the LCD for the functions they serve on a given screen.
When the system is centrally controlled, the button function
guide that corresponds to the locked button will not appear.
Press to turn ON/OFF the indoor unit.
This lamp lights up in green while the unit is in operation. It blinks
while the remote controller is starting up or when there is an error.
1[ON/OFF] button 6ON/OFF lamp
Press to save the setting.
When the Main menu is displayed, pressing this button will
enable/disable the HOLD function. Main display: Press to change the operation mode.
Menu screen: The button function varies with the screen.
2[SELECT/HOLD] button
7Function button [F1]
Press to return to the previous screen. Main display: Press to decrease temperature.
Main menu: Press to move the cursor left.
Menu screen: The button function varies with the screen.
3[RETURN] button 8Function button [F2]
4[MENU] button
9Function button [F3]
Press to bring up the Main menu.
Main display: Press to increase temperature.
Main menu: Press to move the cursor right.
Menu screen: The button function varies with the screen.
Operation settings will appear.
When the backlight is off, pressing any button turns the
backlight on and it will stay lit for a certain period of time de-
pending on the screen. Main display: Press to change the fan speed.
Menu screen: The button function varies with the screen.
5Backlit LCD
0Function button [F4]
83
83
Fri
Room
Set temp.
Mode Temp. Fan
Cool Auto
Main Main menu
Energy saving
Main display:
Cursor
Operation
Vane·Louver·Vent. (Lossnay)
High power
Comfort
Main menuMain display
Menu screen
7890
7890
7890
Function guide
Controller interface

6
OCH610G
The main display can be displayed in two different modes: “Full” and “Basic”. The initial setting is “Full”. To switch to the “Basic”
mode, change the setting on the Main display setting. (Refer to operation manual included with remote controller.)
<Full mode> <Basic mode>
All icons are displayed for explanation.
Most settings (except ON/OFF, mode, fan speed, temperature) can be made from the Main menu. (Refer to Page 7.)
1Operation mode
2Preset temperature
3Clock
4Fan speed
Functions of the corresponding buttons appear here.
5Button function guide
Appears when the ON/OFF operation is centrally controlled.
Appears when the operation mode is centrally controlled.
Appears when the preset temperature is centrally controlled.
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1Room temperature
Appears when the buttons are locked.
Appears when the Weekly timer is enabled.
Appears while the units are operated in the energy saving
mode. (Will not appear on some models of indoor units)
Appears when the built-in thermistor on the remote control-
ler is activated to monitor the room temperature (1).
appears when the thermistor on the indoor unit is acti-
vated to monitor the room temperature.
Appears when an energy saving operation is performed us-
ing a “3D i-see Sensor” function.
Indicates the louver setting.
Indicates the ventilation setting.
Appears when the preset temperature range is restricted.
Indicates the vane setting.
6
7
8
9
0
2
4
5
7
8
9
)
!
Fri
Mode Temp. Fan
Room
Cool Set temp. Auto
83
83
1
2
3
4
5
6
78
90
1
2345 6 7 8
9
)
@
!
#
$
Fri
Cool
Mode Temp. Fan
Set temp. Auto
$
83
5
4
3
2
1
#
Display
Appears when the On/Off timer orAuto-off timer function is enabled.
3
appears when the timer is disabled by the centralized control system.
appears when the HOLD function is enable.
6
Appears while the outdoor units are operated in the silent mode.
@
Appears for a certain period of time when a centrally-con-
trolled item is operated.
#Centrally controlled
An error code appears during the preliminary error.
$Preliminary error display

7
OCH610G
Not all functions are available on all models of indoor units.
Energy saving
Main menu Press the MENU button.
Move the cursor to the desired item with the F1 and F2 buttons, and press the SELECT button.
Operation
Initial setting menu
Manual vane angle
ON/OFF timer
Auto return
Clock
Main/Sub
Temp. range
Auto-OFF timer
Schedule
Daylight saving time
Clock
Administrator password
Operation locked
3D i-see Sensor
High power
Vane · Louver · Vent. (Lossnay)
Comfort
Timer
Energy saving
Basic setting
Display setting
Operation setting
Restriction
Weekly timer
OU silent mode
Black and white inversion setting
Timer menu
Main display
Display details
Contrast • Brightness
Language selection
Auto mode
Setback mode
Continue to the next page.

8
OCH610G
Maintenance menu
Service menu
Drain pump test run
Serial No. input
Lossnay
Diagnosis
Initialize remote controller
Remote controller information
Initialize maintenance info.
Test run
Model name input
Function setting
Error history
Maintenance password
Dealer information input
Error information
Test run menu
Maintenance information
Filter information
Cleaning
Settings menu
Check menu
Other menu
Auto descending panel
Descending operation
Self check
Descending adjustment
Remote controller check
Continue from the previous page.
Not all functions are available on all models of indoor units.

9
OCH610G
Main
menu Setting and display items Setting details
Operation Vane · Louver · Vent.
(Lossnay) Use to set the vane angle. • Select a desired vane setting from 5 different settings.
Use to turn ON/OFF the louver.
• Select a desired setting from "ON" and "OFF."
Use to set the amount of ventilation.
• Select a desired setting from "Off," "Low," and "High."
High power Use to reach the comfortable room temperature quickly.
• Units can be operated in the High-power mode for up to 30 minutes.
Comfort Manual
vane angle 8VHWR¿[HDFKYDQHDQJOH
3D i-see Sensor Use to set the following functions for 3D i-see Sensor.
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Timer Timer ON/OFF timer *1Use to set the operation ON/OFF times.
• Time can be set in 5-minute increments.
Auto-Off
timer Use to set the Auto-Off time. • Time can be set to a value from 30 to 240 in 10-minute increments.
Weekly timer *1, *2Use to set the weekly operation ON/OFF times.
• Up to 8 operation patterns can be set for each day.
(Not valid when the ON/OFF timer is enabled.)
OU silent mode *1Use to set the time periods in which priority is given to quiet operation of
outdoor units over temperature control. Set the Start/Stop times for each day
of the week.
•Select the desired silent level from "Normal," "Middle," and "Quiet."
Energy
saving
Restriction Temp. range *2Use to restrict the preset temperature range.
• Different temperature ranges can be set for different operation modes.
Operation lock Use to lock selected functions.
• The locked functions cannot be operated.
Energy
saving Auto return *2Use to get the units to operate at the preset temperature after performing
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• Time can be set to a value from 30 and 120 in 10-minute increments.
(This function will not be valid when the preset temperature ranges are restricted.)
Schedule *1Set the start/stop times to operate the units in the energy saving mode for
each day of the week, and set the energy saving rate.
• Up to 4 energy saving operation patterns can be set for each day.
• Time can be set in 5-minute increments.
• Energy saving rate can be set to a value from 0% or 50 to 90% in 10% increments.
Main menu list
Continue to the next page.
*1Clock setting is required.
*233.8°F (1°C) increments.

10
OCH610G
Main
menu Setting and display items Setting details
Initial
setting Basic setting Main/Sub When connecting 2 remote controllers, one of them needs to be designated as a sub controller.
Clock Use to set the current time.
Daylight
saving time Set the daylight saving time.
Administrator
password
The administrator password is required to make the settings for the following
items.
• Timer setting • Energy saving setting • Weekly timer setting
• Restriction setting • Outdoor unit silent mode setting • Night set back
Display
setting Main display Use to switch between "Full" and "Basic" modes for the Main display. • The initial setting is "Full."
Black and white
inversion setting Use to invert the colors of the display, turning white background to black and black characters to white.
Display details Make the settings for the remote controller related items as necessary.
Clock: The initial settings are "Yes" and "24h" format.
Temperature: Set either Celsius (°C) or Fahrenheit (°F).
Room temp. : Set Show or Hide.
Auto mode: Set the Auto mode display or Only Auto display.
Contrast •
Brightness Use to adjust screen contrast and brightness.
Language
selection Use to select the desired language.
Operation
setting
Auto mode Whether or not to use the Auto mode can be selected by using the button.
This setting is valid only when indoor units with the Auto mode function are
connected.
Setback mode Whether or not to use the Setback mode can be selected by using the button.
This setting is valid only when indoor units with the Setback mode function
are connected.
Mainte-
nance Error information Use to check error information when an error occurs. • Check code, error source, refrigerant address, unit model, manufacturing number,
contact information (dealer's phone number) can be displayed.
(The unit model, manufacturing number, and contact information need to be
registered in advance to be displayed.)
Filter information 8VHWRFKHFNWKH¿OWHUVWDWXV
7KH¿OWHUVLJQFDQEHUHVHW
Cleaning Auto
descending
panel
Use to lift and lower the auto descending panel (Optional parts).
Service Test run Select "Test run" from the Service menu to bring up the Test run menu.
• Test run • Drain pump test run
Input maintenance Select "Input maintenance Info." from the Service menu to bring up the
Maintenance information screen.
The following settings can be made from the Maintenance Information screen.
• Model name input • Serial No. input • Dealer information input • Initialize
maintenance info.
Settings Function setting Make the settings for the indoor unit functions via the remote controller as
necessary.
LOSSNAY setting This setting is required only when the operation of CITY MULTI units is
interlocked with LOSSNAY units.
Check
Error history
Display the error history and execute "delete error history".
Diagnosis Self check: Error history of each unit can be checked via the remote controller.
Remote controller check: When the remote controller does not work properly, use
the remote controller checking function to troubleshoot the problem.
Other Maintenance
password Use to change the maintenance password.
Initialize remote
controller Use to initialize the remote controller to the factory shipment status.
remote controller
information
Use to display the remote controller model name, software version, and serial
number.

11
OCH610G
2-2-2. Wired Remote Controller <PAC-YT53CRAU>
.
Backlit LCD
ON/OFF lamp
ON/OFF button
FAN button
VANE button
Note: To set the functions that are not available on this controller (PAC-YT53CRAU) such as Louver,
use the centralized controller.
The lamp will light up in green when
turned on, and blink during startup
and when an error occurs.
Pressing this button starts and
stops the operation.
TEMP. button
MODE button
Note:
The phrase "Wired remote controller" in this manual refers only to the PAC-YT53CRAU.
If you need any information for the other remote controller, please refer to either the installation manual or initial setting manual which are included in
remote controller's box.
GB
Display section
*2 icon
For CITY MULTI, when an error occurs, power indicator will blink, and unit address (3 digits) and check code (4
digits) will blink.
Check the error status, stop the operation, and consult your dealer.
icon appears while the unit is operated in the
energy-saving mode
Note: All icons are displayed for explanation purpose
icon appears when Operation lock setting is
effective.
icon appears when indoorunit functions are setup.
(Refer to the Installation Manual.)
Fan speed icon
Vane icon
icon appears when the power is on.
Indoor temperature
Operation modes
CENTRAL icon *1
CHECK icon *2
Preset temperature *3
*1 icon
Appears when one of the following local operations is prohibited: ON/OFF; operation mode; preset temperature;
fan speed; vane.
CENTRAL
*3 Preset temperature
* Centigrade or Fahrenheit is selectable. Refer to the Installation Manual for details.
In COOL, DRYING, HEAT, or
AUTO (single set point) modes In AUTO (dual set point) or SETBACK modes
Room Setto
AUTO COOL HEATFAN
DRYINGVENTI.SETBACK
Preset
temperature
Room Setto
AUTO COOLHEATFAN
DRYINGVENTI.SETBACK
Heatingpreset
temperature
Cooling preset
temperature

12
OCH610G
3-1. SPECIFICATIONS
3SPECIFICATIONS
Service Ref. PLFY-EP06NEMU-E PLFY-EP08NEMU-E PLFY-EP12NEMU-E PLFY-EP15NEMU-E
Power source 1-Phase 208–230 V, 60 HZ
Cooling capacity
(Nominal) *1
*1 Btu/h 6,000
1.8 8,000 2.4 12,000 3.5 15,000 4.4
kW
Power input kW 0.02 0.03 0.03 0.03
Current input A 0.19 0.31 0.31 0.31
Heating capacity
(Nominal) *2
*2 Btu/h 6,700
2.0 9,000 2.7 13,500 4.0 17,000 5.0
kW
Power input kW 0.02 0.02 0.02 0.02
Current input A 0.14 0.26 0.26 0.26
([WHUQDO¿QLVK Galvanized steel sheet
External dimension H × W × D in 10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840 10-3/16 × 33-3/32 × 33-3/32 258 × 840 × 840 10-3/16 × 33-3/32 × 33-3/32 258 × 840 × 840 10-3/16 × 33-3/32 × 33-3/32 258 × 840 × 840
mm
Net weight lbs [kg] 46 [21] 46 [21] 46 [21] 46 [21]
Grille Model PLP-40EAEU PLP-40EAEU PLP-40EAEU PLP-40EAEU
([WHUQDO¿QLVK MUNSELL (6.4Y 8.9/0.4)
Dimension
H × W × D in 1-9/16 × 37-13/32 × 37-13/32
40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950
mm
Net weight lbs [kg] 11 [5] 11 [5] 11 [5] 11 [5]
Heat exchanger &URVV¿Q
FAN Type × Quantity Turbo fan × 1 Turbo fan × 1 Turbo fan × 1 Turbo fan × 1
External static
press. in. WG 0.000 (208 V)
0 0.000 (208 V) 0 0.000 (208 V) 0 0.000 (208 V) 0
Pa
in. WG 0.000 (230 V)
0 0.000 (230 V) 0 0.000 (230 V) 0 0.000 (230 V) 0
Pa
Motor type DC motor
Motor output kW 0.050 0.050 0.050 0.050
Driving mechanism Direct drive
$LUÀRZUDWH
(Low-Mid2-
Mid1-High)
cfm 300-424-459-494
8.5-12.0-13.0-14.0
142-200-217-233
494-530-565-600
14.0-15.0-16.0-17.0
233-250-267-283
494-530-565-600
14.0-15.0-16.0-17.0
233-250-267-283
530-547-565-600
15.0-15.5-16.0-17.0
250-258-267-283
m³/min
L/s
Sound pressure level
(Low-Mid2-Mid1-High)
(measure in anechoic room)
dB <A> 19-23-25-27 (208-230 V)
ʊ
ʊ
27-29-30-31 (208–230 V)
ʊ
ʊ
27-29-30-31 (208–230 V)
ʊ
ʊ
28-29-30-31 (208–230 V)
ʊ
ʊ
dB <A>
dB <A>
Insulation material PS
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Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410, CITY MULTI
Diameter of refrigerant
pipe (O.D.)
Liquid in [mm] 1/4 [6.35] Flare 1/4 [6.35] Flare 1/4 [6.35] Flare 1/4 [6.35] Flare
Gas in [mm] 1/2 [12.7] Flare 1/2 [12.7] Flare 1/2 [12.7] Flare 1/2 [12.7] Flare
Field drain pipe size in [mm] O.D 1-1/4 [32] O.D 1-1/4 [32] O.D 1-1/4 [32] O.D 1-1/4 [32]
Standard attachment Document, accessory Installation Manual, Instruction Book
Optional parts Air outlet shutter plate PAC-SJ37SP-E PAC-SJ37SP-E PAC-SJ37SP-E PAC-SJ37SP-E
+LJKHI¿FLHQF\¿OWHUHOHPHQW PAC-SH59KF-E PAC-SH59KF-E PAC-SH59KF-E PAC-SH59KF-E
Multi-function casement PAC-SJ41TM-E PAC-SJ41TM-E PAC-SJ41TM-E PAC-SJ41TM-E
Remarks Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
*1 Nominal cooling conditions *2 Nominal heating conditions
Indoor: 80°F D.B./67°F W.B 70°F D.B.
[26.7°C D.B./19.4°C W.B ] [21.1°C D.B.]
Outdoor: 95°F D.B. 47°F D.B./43°F W.B
[35°C D.B.] [8.3°C D.B./6.1°C W.B]
Pipe length: 25 ft [7.6m] 25 ft [7.6m]
Level difference: 0 ft [0 m] 0 ft [0 m]
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Unit converter
kcal/h = kW × 860
Btu/h = kW × 3,412
cfm = m3/min x 35.31
lb = kg/0.4536
$ERYHVSHFL¿FDWLRQGDWDLV
subject to rounding variation
.

13
OCH610G 13
Service Ref. PLFY-EP18NEMU-E PLFY-EP18NEMU-E1 PLFY-EP24NEMU-E PLFY-EP30NEMU-E
Power source 1-Phase 208–230 V, 60 HZ
Cooling capacity
(Nominal) *1
*1 Btu/h 18,000
5.3 18,000 5.3 24,000 7.0 30,000 8.8
kW
Power input kW 0.03 0.04 0.04 0.04
Current input A 0.34 0.43 0.43 0.45
Heating capacity
(Nominal) *2
*2 Btu/h 20,000
5.9 20,000 5.9 27,000 7.9 34,000 10.0
kW
Power input kW 0.02 0.04 0.04 0.04
Current input A 0.29 0.38 0.38 0.40
([WHUQDO¿QLVK Galvanized steel sheet
External dimension H × W × D in 10-3/16 × 33-3/32 × 33-3/32
258 × 840 × 840 11-3/4 × 33-3/32 × 33-3/32 298 × 840 × 840 11-3/4 × 33-3/32 × 33-3/32 298 × 840 × 840 11-3/4 × 33-3/32 × 33-3/32 298 × 840 × 840
mm
Net weight lbs [kg] 46 [21] 55 [25] 55 [25] 55 [25]
Grille Model PLP-40EAEU PLP-40EAEU PLP-40EAEU PLP-40EAEU
([WHUQDO¿QLVK MUNSELL (6.4Y 8.9/0.4)
Dimension
H × W × D in 1-9/16 × 37-13/32 × 37-13/32
40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950
mm
Net weight lbs [kg] 11 [5] 11 [5] 11 [5] 11 [5]
Heat exchanger &URVV¿Q
FAN Type × Quantity Turbo fan × 1 Turbo fan × 1 Turbo fan × 1 Turbo fan × 1
External static
press. in. WG 0.000 (208 V)
0 0.000 (208 V) 0 0.000 (208 V) 0 0.000 (208 V) 0
Pa
in. WG 0.000 (230 V)
0 0.000 (230 V) 0 0.000 (230 V) 0 0.000 (230 V) 0
Pa
Motor type DC motor
Motor output kW 0.050 0.120 0.120 0.120
Driving mechanism Direct drive
$LUÀRZUDWH
(Low-Mid2-
Mid1-High)
cfm 530-565-600-636
15.0-16.0-17.0-18.0
250-267-283-300
636-671-742-812
18.0-19.0-21.0-23.0
300-317-350-383
636-671-742-812
18.0-19.0-21.0-23.0
300-317-350-383
636-706-777-812
18.0-20.0-22.0-23.0
300-333-367-383
m³/min
L/s
Sound pressure level
(Low-Mid2-Mid1-High)
(measure in anechoic room)
dB <A> 28-30-31-32 (208–230 V)
ʊ
ʊ
28-30-32-34 (208–230 V)
ʊ
ʊ
28-30-32-34 (208–230 V)
ʊ
ʊ
28-31-33-35 (208–230 V)
ʊ
ʊ
dB <A>
dB <A>
Insulation material PS
$LU¿OWHU 33KRQH\FRPEORQJOLIH¿OWHUDQWLEDFWHULDOW\SH
Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410, CITY MULTI
Diameter of refrigerant
pipe (O.D.)
Liquid in [mm] 1/4 [6.35] Flare 1/4 [6.35] Flare 3/8 [9.52] Flare 3/8 [9.52] Flare
Gas in [mm] 1/2 [12.7] Flare 1/2 [12.7] Flare 5/8 [15.88] Flare 5/8 [15.88] Flare
Field drain pipe size in [mm] O.D 1-1/4 [32] O.D 1-1/4 [32] O.D 1-1/4 [32] O.D 1-1/4 [32]
Standard attachment Document, accessory Installation Manual, Instruction Book
Optional parts Air outlet shutter plate PAC-SJ37SP-E PAC-SJ37SP-E PAC-SJ37SP-E PAC-SJ37SP-E
+LJKHI¿FLHQF\¿OWHUHOHPHQW PAC-SH59KF-E PAC-SH59KF-E PAC-SH59KF-E PAC-SH59KF-E
Multi-function casement PAC-SJ41TM-E PAC-SJ41TM-E PAC-SJ41TM-E PAC-SJ41TM-E
Remarks Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
*1 Nominal cooling conditions *2 Nominal heating conditions
Indoor: 80°F D.B./67°F W.B 70°F D.B.
[26.7°C D.B./19.4°C W.B ] [21.1°C D.B.]
Outdoor: 95°F D.B. 47°F D.B./43°F W.B
[35°C D.B.] [8.3°C D.B./6.1°C W.B]
Pipe length: 25 ft [7.6m] 25 ft [7.6m]
Level difference: 0 ft [0 m] 0 ft [0 m]
1RWH6SHFL¿FDWLRQVDUHVXEMHFWWRFKDQJHZLWKRXWQRWLFH
Unit converter
kcal/h = kW × 860
Btu/h = kW × 3,412
cfm = m3/min x 35.31
lb = kg/0.4536
$ERYHVSHFL¿FDWLRQGDWDLV
subject to rounding variation
.

14
OCH610G
Service Ref. PLFY-EP36NEMU-E PLFY-EP48NEMU-E
Power source 1-Phase 208–230 V, 60 HZ
Cooling capacity
(Nominal) *1
*1 Btu/h 36,000
10.5 48,000 14.1
kW
Power input kW 0.07 0.11
Current input A 0.73 1.01
Heating capacity
(Nominal) *2
*2 Btu/h 40,000
11.7 54,000 15.8
kW
Power input kW 0.07 0.11
Current input A 0.68 0.96
([WHUQDO¿QLVK Galvanized steel sheet
External dimension H × W × D in 11-3/4 × 33-3/32 × 33-3/32
298 × 840 × 840 11-3/4 × 33-3/32 × 33-3/32 298 × 840 × 840
mm
Net weight lbs [kg] 55 [25] 55 [25]
Grille Model PLP-40EAEU PLP-40EAEU
([WHUQDO¿QLVK MUNSELL (6.4Y 8.9/0.4)
Dimension
H × W × D in 1-9/16 × 37-13/32 × 37-13/32
40 × 950 × 950 1-9/16 × 37-13/32 × 37-13/32 40 × 950 × 950
mm
Net weight lbs [kg] 11 [5] 11 [5]
Heat exchanger &URVV¿Q
FAN Type × Quantity Turbo fan × 1 Turbo fan × 1
External static
press. in. WG 0.000 (208 V)
0 0.000 (208 V) 0
Pa
in. WG 0.000 (230 V)
0 0.000 (230 V) 0
Pa
Motor type DC motor
Motor output kW 0.120 0.120
Driving mechanism Direct drive
$LUÀRZUDWH
(Low-Mid2-
Mid1-High)
cfm 777-883-989-1,095
22.0-25.0-28.0-31.0
367-417-467-517
777-953-1,059-1,236
22.0-27.0-31.0-35.0
367-450-517-584
m³/min
L/s
Sound pressure level
(Low-Mid2-Mid1-High)
(measure in anechoic room)
dB <A> 35-37-39-41 (208–230 V)
ʊ
ʊ
36-39-42-45 (208–230 V)
ʊ
ʊ
dB <A>
dB <A>
Insulation material PS
$LU¿OWHU 33KRQH\FRPEORQJOLIH¿OWHUDQWLEDFWHULDOW\SH
Protection device Fuse
Refrigerant control device LEV
Connectable outdoor unit R410, CITY MULTI
Diameter of refrigerant
pipe (O.D.)
Liquid in [mm] 3/8 [9.52] Flare 3/8 [9.52] Flare
Gas in [mm] 5/8 [15.88] Flare 5/8 [15.88] Flare
Field drain pipe size in [mm] O.D 1-1/4 [32] O.D 1-1/4 [32]
Standard attachment Document, accessory Installation Manual, Instruction Book
Optional parts Air outlet shutter plate PAC-SJ37SP-E PAC-SJ37SP-E
+LJKHI¿FLHQF\¿OWHUHOHPHQW PAC-SH59KF-E PAC-SH59KF-E
Multi-function casement PAC-SJ41TM-E PAC-SJ41TM-E
Remarks Installation Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items
shall be referred to the Installation Manual.
*1 Nominal cooling conditions *2 Nominal heating conditions
Indoor: 80°F D.B./67°F W.B 70°F D.B.
[26.7°C D.B./19.4°C W.B ] [21.1°C D.B.]
Outdoor: 95°F D.B. 47°F D.B./43°F W.B
[35°C D.B.] [8.3°C D.B./6.1°C W.B]
Pipe length: 25 ft [7.6m] 25 ft [7.6m]
Level difference: 0 ft [0 m] 0 ft [0 m]
1RWH6SHFL¿FDWLRQVDUHVXEMHFWWRFKDQJHZLWKRXWQRWLFH
Unit converter
kcal/h = kW × 860
Btu/h = kW × 3,412
cfm = m3/min x 35.31
lb = kg/0.4536
$ERYHVSHFL¿FDWLRQGDWDLV
subject to rounding variation
.

15
OCH610G
3-2. SOUND PRESSURE LEVEL
Note: Measured in anechoic room.
PLFY-EP•NEMU-E
5 ft (1.5m)
Measurement location
Sound pressure level in anechoic room: Low-Mid2-Mid1-High
Sound pressure level dB (A)
PLFY-EP06NEMU-E 19-23-25-27
PLFY-EP08NEMU-E
PLFY-EP12NEMU-E 27-29-30-31
PLFY-EP15NEMU-E 28-29-30-31
PLFY-EP18NEMU-E 28-30-31-32
PLFY-EP18NEMU-E1
PLFY-EP24NEMU-E 28-30-32-34
PLFY-EP30NEMU-E 28-31-33-35
PLFY-EP36NEMU-E 35-37-39-41
PLFY-EP48NEMU-E 36-39-42-45

16
OCH610G
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP08,12NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
PLFY-EP06NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP15NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP18NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle2 60Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP24NEMU-E
PLFY-EP18NEMU-E1
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP30NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP36NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
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
NC-60
NC-50
2FWDYHEDQGSUHVVXUHOHYHOG%G% ȝ3D
Approximate minimum
audible limit on
continuous noise
NC-40
NC-30
NC-20
High
Middle 60Hz
Middle260Hz
Low 60Hz
60Hz
63 125 250 500 1k 2k 4k 8k
Octave band center frequencies (Hz)
PLFY-EP48NEMU-E
([WHUQDO6WDWLF3UHVVXUH3D>LQ:*@
3RZHU6RXUFH9+]
3-3. NC CURVES

17
OCH610G
3-4. ELECTRICAL PARTS SPECIFICATIONS
Service Ref.
Parts name
Symbol
PLFY-EP06NEMU-E
PLFY-EP08NEMU-E
PLFY-EP12NEMU-E PLFY-EP15NEMU-E PLFY-EP18NEMU-E
PLFY-EP18NEMU-E1
PLFY-EP24NEMU-E PLFY-EP30NEMU-E PLFY-EP36NEMU-E
PLFY-EP48NEMU-E
Room temperature
thermistor TH21
5HVLVWDQFH)N)N)N)N)N)N
Liquid pipe thermistor TH22 5HVLVWDQFH)N)N)N)N)N)N
Gas pipe thermistor TH23 5HVLVWDQFH)N)N)N)N)N)N
Fuse
(Indoor controller board) FUSE UL 6.3A 250 V AC
Fan motor MF 8-pole OUTPUT 50W
8-pole OUTPUT, 120W
Vane motor MV MSBPC20M04
9'&SKDVH
Drain pump DP PLD-12230ME-1
INPUT 12/10.8W 24R/Hr
'UDLQÀRDWVZLWFK FS Open/short detection
Linear expansion valve LEV
12 V DC Stepping motor drive port dimension ø3.2 (0–2000pulse)
EDM-40YGME
12 V DC Stepping motor drive
port dimension
ø 5.2 (0–2000pulse)
EDM-80YGME
Power supply terminal
block TB2 (L1, L2, GR) 330 V, 30 A
Transmission terminal
block TB5 (M1, M2, S) 250 V, 20 A
MA remote controller
terminal block TB15 (1, 2) 250 V, 10 A

18
OCH610G
44-WAY AIRFLOW SYSTEM
4-1. 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 airflow 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
2) According to the number of air outlets and height of the ceiling to install the unit, be sure to set up the switch (SW21) on
the indoor controller board to the appropriate setting.
• Correspondence of ceiling heights to numbers of air outlets
PLFY-EP06/08/12/15/18/24/30NEMU-E
PLFY-EP18NEMU-E1 PLFY-EP36/48NEMU-E
Silent Standard High ceiling Silent Standard High ceiling
SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2 SW21-1 SW21-2
OFF ON OFF OFF ON OFF OFF ON OFF OFF ON OFF
4 direction
SW21-3 OFF 8.2 ft [2.5 m] 8.9 ft [2.7 m] 11.5 ft [3.5 m] 8.9 ft [2.7 m] 10.5 ft [3.2 m] 14.8 ft [4.5 m]
SW21-4 ON
3 direction
SW21-3 OFF 8.9 ft [2.7 m] 9.8 ft [3.0 m] 11.5 ft [3.5 m] 9.8 ft [3.0 m] 11.8 ft [3.6 m] 14.8 ft [4.5 m]
SW21-4 OFF
2 direction
SW21-3 ON 9.8 ft [3.0 m] 10.8 ft [3.3 m] 11.5 ft [3.5 m] 10.8 ft [3.3 m] 13.1 ft [4.0 m] 14.8 ft [4.5 m]
SW21-4 OFF

19
OCH610G 19
CN51
Multiple remote
controller adapter
PAC-SA88HA-E
Indoor controller board
Distance between indoor
controller board and relay
must be within 33 ft [10 m].
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
-
+
4-3. 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 12 V DC relay
between the Yellow and Orange connector lines.
MB: Electromagnetic switch power relay for duct fan.
X: Auxiliary relay (For 12 V DC, coil rating: 1.0W or
smaller)
Unit : in (mm)
Branch duct hole
A
A
A
Drain pipe
Fresh air intake hole diagram
Refrigerant pipe
Branch duct hole diagram
(view from either side)
13-25/32 × 3-15/16
(350×100) cutout hole ø5-29/32 (ø150) cutout hole
ø6-7/8 (ø175) burring hole pitch
ø4-29/32
(ø125) burring hole pitch
ø3-15/16
(ø100) cutout hole
Ceiling
Fresh air intake hole
A
A
6-7/32 (158)
15-11/32
(390)
13-25/32
(350)
3-15/16
(100)
3-15/16 (100)
6-3/32 (155)
6-9/16 (167)
3-15/16
(100)
5-1/8 (130)
3-17/32
(90)
3-17/32
(90)
4-2. 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:
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.

Static pressure [
Pa(in.W.G.o10-2)
]
Airflow rate
Static pressure [
Pa(in.W.G.o10-2)
]Static pressure [
Pa(in.W.G.o10-2)
] Static pressure [
Pa(in.W.G.o10-2)
] Static pressure [
Pa(in.W.G.o10-2)
]
Static pressure [
Pa(in.W.G.o10-2)
]
Airflow rate
Airflow rate
0 0.2 0.4 0.6 0.8 1 1.2 1.4 0123456
0123456
-150 (-60)
-200 (-80)
-100 (-40)
-50 (-20)
0
50 (20)
-150 (-60)
-200 (-80)
-100 (-40)
-50 (-20)
0
50 (20)
-150 (-60)
-200 (-80)
-100 (-40)
-50 (-20)
0
50 (20)
-150 (-60)
-100 (-40)
-50 (-20)
0
50 (20)
-150 (-60)
-200 (-80)
-100 (-40)
-50 (-20)
0
50 (20)
-150 (-60)
-200 (-80)
-100 (-40)
-50 (-20)
0
50 (20)
0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8
01234567
012345 76
2 - inlet
2 - inlet
2 - inlet
1 - inlet
1 - inlet
1 - inlet
2 - inlet
1 - inlet
10 20 30 40 [CFM]
Airflow rate
50 100 150 200
Airflow rate
10 20 30 40 50 60 50 100 150 200
[CMM]
[CFM]
[CMM]
[CFM]
[CMM] [CFM]
[CMM]
50 100 150 200
Airflow rate
[CFM]
[CMM]
50 100 150 200 [CFM]
[CMM]
20
OCH610G
2PLFY-EP18NEMU-E1
PLFY-EP24/30/36/48NEMU-E
Taking air into the unit
Multifunction casement + High efficiency filter
Multifunction casement + High efficiency filter
4-4. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
1PLFY-EP06/08/12/15/18NEMU-E
Taking air into the unit 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 airflow amount Q
<Pa (in.W.G.o10-2)>
B…Forced static pressure at air condi-
tioner inlet with airflow amount Q
<Pa (in.W.G.o10-2)>
C… Static pressure of booster fan with
airflow amount Q <Pa (in.W.G.o10
-2
)>
D… Static pressure loss increase amount of
fresh air intake duct system for airflow
amount Q <Pa (in.W.G.o10
-2
)>
E… Static pressure of indoor unit with
airflow amount Q <Pa (in.W.G.o10
-2
)>
Qa…Estimated amount of fresh air intake
without D <CMM (CFM)>
How to read curves
Multifunction casement + Standard filter