PLFY-WL04NFMU-E Split Type Heat Pump Air Conditioners
Product Information: Split-Type, Heat Pump Air
Conditioners
Specifications:
Indoor Unit Model Names: PLFY-WL04NFMU-E, PLFY-WL06NFMU-E,
PLFY-WL08NFMU-E, PLFY-WL12NFMU-E, PLFY-WL15NFMU-E
Grille Model Names: SLP-18FAU, SLP-18FAEU
Service Reference: PLFY-WL04NFMU-E.TH, PLFY-WL06NFMU-E.TH,
PLFY-WL08NFMU-E.TH, PLFY-WL12NFMU-E.TH, PLFY-WL15NFMU-E.TH
Product Usage Instructions:
1. Safety Precaution:
Before installation and performing electrical work, it is
important to read and follow the safety precautions listed
below:
Consult with the local power authority before connecting the
equipment to the power supply system.
Failure to follow the instructions exactly as stated may result
in serious injury or death.
Securely attach the control box cover to prevent dust or water
infiltration that may cause electric shock, smoke, or fire.
Use only the type of refrigerant indicated on the unit during
installation or relocation to avoid adverse effects on the
refrigerant cycle.
Consult your dealer or a qualified technician for proper
installation and relocation to prevent water leakage, electric
shock, or fire.
After completing service work, check for refrigerant leaks as
leaked refrigerant exposed to heat sources may generate toxic
gases.
Do not attempt to defeat the safety features of the unit, as it
may result in smoke, fire, or explosion.
Consult your dealer for the proper disposal method of the
unit.
Avoid using leak detection additives.
2. Parts Names and Functions:
The product consists of various parts with specific names and
functions. Please refer to the user manual for a detailed list and
description of each part.
3. 4-Way Airflow System:
The split-type, heat pump air conditioners are equipped with a
4-way airflow system that ensures efficient and uniform
cooling/heating throughout the room. The user manual provides
detailed information on how to adjust and control the airflow
direction.
4. Outlines and Dimensions:
The outlines and dimensions of the indoor unit and grille models
are provided in the user manual. Refer to these specifications to
ensure proper installation and placement of the air
conditioners.
5. Wiring Diagram:
The user manual includes a wiring diagram that illustrates the
electrical connections required for installation. Follow the
diagram carefully to ensure correct wiring.
6. Refrigerant System Diagram:
To understand the refrigerant system of the air conditioners,
refer to the refrigerant system diagram provided in the user
manual. This diagram explains the flow and components of the
refrigerant system.
7. Microprocessor Control:
The air conditioners are equipped with a microprocessor control
system that enables precise temperature control and various
operating modes. The user manual provides instructions on how to
use and customize the microprocessor control settings.
8. Troubleshooting:
If any issues or malfunctions occur with the air conditioners,
refer to the troubleshooting section of the user manual. It
provides a comprehensive list of common problems and their possible
solutions.
9. Disassembly Procedure:
In case disassembly is required for maintenance or repair
purposes, the user manual provides a step-by-step disassembly
procedure. Follow the instructions carefully to avoid damage to the
unit.
10. Remote Controller:
The air conditioners come with a remote controller for
convenient operation. The user manual includes detailed
instructions on how to use the remote controller and its various
functions.
FAQ (Frequently Asked Questions):
1. Q: Can I use a different type of refrigerant than the one
indicated on the unit?
A: No, it is recommended to use only the type of refrigerant
indicated on the unit. The use of other types of refrigerant may
adversely affect the refrigerant cycle and result in pipe bursts or
explosions.
1. Q: What should I do if I detect a refrigerant leak?
A: If you detect a refrigerant leak after completing service
work, it is important to take immediate action. Leaked refrigerant
exposed to heat sources can generate toxic gases. Consult a
qualified technician for proper handling and repair.
1. Q: Can I defeat the safety features of the unit?
A: No, it is strongly advised not to defeat the safety features
of the unit. Forced operation of pressure switches or temperature
switches, or the use of unauthorized accessories may result in
smoke, fire, or explosion. Always consult your dealer for proper
usage and maintenance.
SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS
TECHNICAL & SERVICE MANUAL
July 2023
No. TCH123
Indoor unit [Model Name] PLFY-WL04NFMU-E
PLFY-WL06NFMU-E
PLFY-WL08NFMU-E
PLFY-WL12NFMU-E
PLFY-WL15NFMU-E
Grille model [Model Name] SLP-18FAU SLP-18FAEU
CONTENTS
1. SAFETY PRECAUTION …………………… 2 2. PARTS NAMES AND FUNCTIONS …… 3 3.
SPECIFICATIONS …………………………… 4 4. 4-WAY AIRFLOW SYSTEM ……………… 7 5. OUTLINES AND
DIMENSIONS ………… 9 6. WIRING DIAGRAM ……………………….. 10 7. REFRIGERANT SYSTEM
DIAGRAM…. 11 8. MICROPROCESSOR CONTROL ……. 11 9. TROUBLESHOOTING …………………… 18
10. DISASSEMBLY PROCEDURE ……….. 25 11. REMOTE CONTROLLER……………….. 29
PARTS CATALOG (TCB123)
1 SAFETY PRECAUTION
Read before installation and performing electrical work
Thoroughly read the following safety precautions prior to installation.
Observe these safety precautions for your safety. This equipment may have
adverse effects on the equipment on the same power supply system. Contact the
local power authority before connecting to the system.
Symbol explanations
WARNING
This symbol indicates that failure to follow the instructions exactly as
stated poses the risk of serious injury or death.
CAUTION
This symbol indicates that failure to follow the instructions exactly as
stated poses the risk of serious injury or damage to the unit.
Indicates an action that must be avoided.
Indicates important instructions.
Indicates a parts that requires grounding. Indicates that caution must be
taken with rotating parts. (This symbol is on the main unit label.) <Color:
Yellow> Indicates that the parts that are marked with this symbol pose a risk
of electric shock. (This symbol is on the main unit label.)
Keep electrical parts away from water.
– Wet electrical parts pose a risk of electric shock, smoke, or fire. Securely
attach the control box cover. – If the cover is not installed properly, dust
or water may infiltrate and pose a
risk of electric shock, smoke, or fire. Only use the type of refrigerant that
is indicated on the unit when installing or relocating the unit. –
Infiltration of any other types of refrigerant or air into the unit may
adversely
affect the refrigerant cycle and may cause the pipes to burst or explode.
Consult your dealer or a qualified technician when moving or reinstalling the
unit. – Improper installation may result in water leakage, electric shock, or
fire. After completing the service work, check for a refrigerant leak. – If
leaked refrigerant is exposed to a heat source, such as a fan heater, stove,
or electric grill, toxic gases will be generated. Do not try to defeat the
safety features of the unit. – Forced operation of the pressure switch or the
temperature switch by defeat-
ing the safety features for these devices, or the use of accessories other
than the ones that are recommended by Mitsubishi Electric may result in smoke,
fire, or explosion. Consult your dealer for proper disposal method. Do not use
a leak detection additive.
Precautions for handling units for use with water
WARNING
Carefully read the labels affixed to the main unit.
WARNING
Do not use refrigerant other than the type indicated in the manuals provided
with the unit and on the nameplate. – Doing so may cause the unit or pipes to
burst, or result in explosion or fire during use, during repair, or at the
time of disposal of the unit. It may also be in violation of applicable laws.
MITSUBISHI ELECTRIC CORPORATION cannot be held responsible for malfunctions or
accidents resulting from the use of the wrong type of refrigerant. Ask your
dealer or a qualified technician to install the unit. – Improper installation
by the user may result in water leakage, electric shock, or fire. Properly
install the unit on a surface that can withstand its weight. – Unit installed
on an unstable surface may fall and cause injury. Only use specified cables.
Securely connect each cable so that the terminals do not carry the weight of
the cable. – Improperly connected cables may produce heat and start a fire.
Take appropriate safety measures against wind gusts and earthquakes to prevent
the unit from toppling over. – Improper installation may cause the unit to
topple over and cause injury or damage to the unit. Only use accessories
(i.e., air cleaners, humidifiers, electric heaters) recommended by Mitsubishi
Electric. Do not make any modifications or alterations to the unit. Consult
your dealer for repair. – Improper repair may result in water leakage,
electric shock, or fire. Do not touch the heat exchanger fins with bare hands.
– The fins are sharp and pose a risk of cuts. Properly install the unit
according to the instructions in the Installation Manual. – Improper
installation may result in water leakage, electric shock, or fire. Have all
electrical work performed by an authorized electrician accord-ing to the local
regulations and the instructions in this manual. Use a dedicated circuit. –
Insufficient power supply capacity or improper installation of the unit may
re-sult in malfunctions of the unit, electric shock, or fire.
CAUTION
Do not use the existing water piping. – Store the piping materials indoors,
and keep both ends of the pipes sealed until immediately before installation.
Keep the joints wrapped in plastic bags. If dust or dirt enters the water
circuit, it may damage the heat exchanger and cause water leakage. Only use
water. – Only use clean water as a refrigerant. The use of water outside the
specification may damage the refrigerant circuit. Install the unit so that
external force is not applied to the water pipes.
TCH123
2
2 PARTS NAMES AND FUNCTIONS
2-1. Indoor Unit
Horizontal Air Outlet Sets horizontal airflow automatically during cooling or
dehumidifying.
Filter Removes dust and pollutants drawn from the air.
Grille
Auto Air Swing Vane Disperses airflow up and down and adjusts the angle of
airflow direction.
Air Intake Draws in air from room.
2-2. Wired Remote Controller
The functions which can be used are restricted according to each model.
: Supported : Unsupported
Function
PAR-41MAA
Slim
CITY MULTI
PAC-YT53CRAU
Body
Product size H × W × D
(mm) (inch)
(120 × 120 × 14.5) (4-3/4 × 4-3/4 × 9/16)
(120 × 70 × 14.5) (4-3/4 × 2-3/4 × 9/16)
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.
Refer to “10-1. REMOTE CONTROLLER FUNCTIONS” for details.
Installation Manual, Instruction Book Insulation template, Washer, Drain
socket, Tie band
Optional Decoration panel
parts
3D i-see Sensor panel
SLP-18FAU SLP-18FAEU
3D i-see Sensor corner panel
PAC-SF1ME-E
Wireless signal receiver
PAR-SF9FA-E
Remark
Details on foundation work, duct work, insulation work, electrical wiring, power source switch, and other items shall be referred to the Installation Manual.
Due to continuing improvement, above specifications may be subject to change without notice.
Notes: 1. Norminal cooling conditions
Indoor: 80°FD.B./67°FW.B. (26.7°D.B./19.4°CW.B.), Outdoor: 95°FD.B. (35°CD.B.)
Pipe length: 25 ft. (7.6 m), Level difference: 0 ft. (0 m) 2. Norminal heating
conditions Indoor: 70°FD.B. (21.1°C.B.), Outdoor: 47°FD.B./43°FW.B.
(8.3°CD.B./6.1°CW.B.) Pipe length: 25 ft. (7.6 m), Level difference: 0 ft. (0
m) 3. Be sure to install a valve on the water inlet/outlet. 4. Install a
strainer (40 mesh or more) on the pipe next to the valve to remove the foreign
matters.
Unit converter
Btu/h = kW × 3,412 cfm = m³/min × 35.31 lb = kg/0.4536 *Above specification
data is subject to rounding variation.
TCH123
4
3-2. ELECTRICAL PARTS SPECIFICATIONS
Service ref.
Parts name
Symbol PLFY-WL04NFMU-E.TH PLFY-WL06NFMU-E.TH PLFY-WL08NFMU-E.TH PLFY-
WL12NFMU-E.TH PLFY-WL15NFMU-E.TH
Thermistor (Room temperature detection)
Thermistor (Pipe temperature detection/inlet)
Thermistor (Pipe temperature detection/outlet)
MSBPC20M32 (green label)/MSBPC20M33 (blue label) DC12 V 300 “/phase
PMD-12D13ME INPUT 3 W (DC 13 V) 24R/Hr
Drain float switch
FS
Open/short detection
Power supply terminal block
TB2
Transmission terminal block
TB5
MA remote controller terminal block
TB15
Refer to WIRING DIAGRAM for the supplied voltage.
(L1, L2) Rated to 330 V 30 A (M1, M2, S) Rated to 250 V 20 A
(1, 2) Rated to 250 V 10 A*
3-3. SOUND PRESSURE LEVEL
TPLFYW·FM1W0A
Sound pressure level at anechoic room : Low-Mid-High
Service Ref. TPLFYW04FM1W0A
Sound pressure level dB (A) 25-26-27
TPLFYW06FM1W0A
27-29-31
TPLFYW08FM1W0A
27-30-34
TPLFYW12FM1W0A
27-33-41
TPLFYW15FM1W0A
27-40-43
1.5 m
Measurement location
Note: Measured in anechoic room.
TCH123
5
3-4. NOISE CRITERION CURVES
TPLFYW04FM1W0A
FAN SPL(dB) LINE
High
27
Medium 26
Low
25
90
TPLFYW06FM1W0A
FAN SPL(dB) LINE
High
31
Medium 29
Low
27
90
80
80
OCTAVE BAND SOUND PRESSURE LEVEL, dB0dB=0.0002bar)
OCTAVE BAND SOUND PRESSURE LEVEL, dB0dB=0.0002bar)
70 NC-70
60 NC-60
50 NC-50
40 NC-40
30 NC-30
20 Approximate minimum audible limit on continuous noise
NC-20
10 63
125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz
70 NC-70
60 NC-60
50 NC-50
40 NC-40
30 NC-30
20 Approximate minimum audible limit on continuous noise
NC-20
10 63
125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB0dB=0.0002bar)
TPLFYW08FM1W0A
FAN SPL(dB) LINE
High
34
Medium 30
Low
27
90
80
70 NC-70
60 NC-60
50 NC-50
40 NC-40
30 NC-30
20 Approximate minimum audible limit on continuous noise
NC-20
10 63
125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB0dB=0.0002bar)
TPLFYW12FM1W0A
FAN SPL(dB) LINE
High
41
Medium 33
Low
27
90
80
70 NC-70
60 NC-60
50 NC-50
40 NC-40
30 NC-30
20 Approximate minimum audible limit on continuous noise
NC-20
10 63
125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz
OCTAVE BAND SOUND PRESSURE LEVEL, dB0dB=0.0002bar)
TPLFYW15FM1W0A
FAN SPL(dB) LINE
High
43
Medium 40
Low
27
90
80
70 NC-70
60 NC-60
50 NC-50
40 NC-40
30 NC-30
20 Approximate minimum audible limit on continuous noise
NC-20
10 63
125 250 500 1000 2000 4000 8000 BAND CENTER FREQUENCIES, Hz
TCH123
6
4 4-WAY AIRFLOW SYSTEM
4-1. FRESH AIR INTAKE (Location for installation)
At the time of installation, use the duct holes (cut out) located at the
positions shown in following diagram, as and when required.
Fresh air intake
Detail drawing of fresh air intake
Burring hole
5-1/2 120°
Cut out hole
Ø3-15/16 120°
7-5/16 8-3/16
1-5/32+3/016
Ceiling surface
Water pipe
Electrical Box Drain pipe
4-2. FRESH AIR INTAKE AMOUNT & STATIC PRESSURE CHARACTERISTICS
Taking air into the unit
0
Static pressure [Pa(in.W.G.×10-2)]
-30(-12)
-60(-24)
-90(-36)
-120(-48)
-150(-60) 0 0
0.3
0.6
0.9
1.2
1.5 [CMM]
10
20
30
40
50 [CFM]
Airflow rate
NOTE: Fresh air intake amount should be 10% or less of whole air amount to
prevent dew dripping.
How to read curves
Duct characteristics
1
Curve in the left graphs
at site
0
BA C
Q
2
EC A
Q 3
D
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 conditioner
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)>
A
Q Qa
4-3. OPERATION IN CONJUNCTION WITH DUCT FAN (Booster fan)
· Whenever the indoor unit operates, 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 VDC relay between the Yellow and Orange connector wires.
MB: Electromagnetic switch power relay for duct fan. X: Auxiliary relay (For
12 VDC, coil rating: 1.0 W or below)
Be sure to secure insulation material by tape, etc.
CN51
5
Green
on indoor unit
Yellow –
board
1
Orange +
MB
Connector (5P)
Red
Indoor unit side
Brown Multiple remote
Installation at site
controller adapter
PAC-SA88HA-E
Be sure to secure insulation
material by tape, etc.
CN51
Multiple remote controller adapter PAC-SA88HA-E
Distance between indoor controller board and relay must be within 10 m.
TCH123
Indoor controller board
7
4-4. FIXING HORIZONTAL VANE
Horizontal vane of each air outlet can be fixed according to the environment
where it is installed.
Setting procedures 1) Turn off a main power supply (Turn off a breaker). 2)
Disconnect the vane motor connector of the direction of the arrow with
pressing the unlocking button as shown in figure
below. Insulate the disconnected connector with the plastic tape.
Vane motor
Vane motor
Horizontal vane
Connector Unlocking button
Set the vertical vane of the air outlet by hand slowly within the range in
the table below.
Measured standard position of the grille
A
Standard of horizontal position Dimension A inch (mm)
Angle = 21° (Horizontal)
1-17/32 (39)
Horizontal vane
Angle = 24° 1-39/64 (41)
Angle = 39° 1-27/32 (47)
Angle = 42° 1-57/64 (48)
Note: Dimension between 1-17/32 (39) and 1-57/64 (49) can be arbitrarily set.
Angle = 45° (Downward)
1-57/64 (49)
Caution
.
Do not set the dimension out of the range. Erroneous setting could cause dew
drips or malfunction of unit.
TCH123
8
5 OUTLINES AND DIMENSIONS
Unit: inch(mm)
TCH123
9
6 WIRING DIAGRAM
GRILLE
Detail of SW11, SW12 and SW14
SW14
SW12
MV
MV
MV
MV
MMMM
5
5
5
5
SW11
i-see Sensor CORNER PANEL (OPTION PART)
5
5
MT
i-see
M Sensor
4
4
*2 TB2
BU L2 RD L1
TO NEXT INDOOR UNIT
PULL BOX
BRANCH No.
10s DIGIT
1s DIGIT
I.B
Switches in the picture show “0”.
See Fig.*1
BK
FUSE(15A)
10
10
20 19 21
CNV
SW21 ON
SW14 SW12
OFF 123456
BRANCH 10s No. DIGIT
SW11 CN32
1s 3
1
DIGIT
SW22 ON OFF
1234
SW1
SW2
ON
ON
SW3 ON
OFF
OFF
OFF
1 23 45 6 7 89 0 1 23 45 6 1 23 45 67 89 0
4
1 SWE 5
CN4Z ON OFF
31 CND
1 CN105 5
F1
*3
POWER SUPPLY ~/N 208/230V 60Hz
TO OUTDOOR UNIT BC CONTROLLER M-NET REMOTE CONTROLLER 24-30V DC
TB5 S
3 CN3M 1
M2
M1
CN8A
1
8
1 CN5Y 5
CN44
4
1
LED1
CN90
CN20
1
2
CN24
1
9
TO MA-REMOTE CONTROLLER 8.7-13V DC
TB15 2 1
2 CN2A 1 LED2 CN52
CN51
CNSA
CNSB
12
CN4F
CNP
CNMF
1
51
5
1
61 3
1
4
1
37
41
9
3
Notes:
t° TH23
t° TH22
t° TH21
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 ME-Remote controller, please connect to TB5. (Transmission
line is non-polar.)
4.Symbol [S]of TB5 is the shield wire connection.
5.Symbols used in wiring diagram above are,
: terminal block,
: connector.
6.The setting of the SW2 differs in the capacity. For the detail, refer to the
Fig.*1.
7.Make sure to turn off the indoor and the outdoor units before replacing
indoor controller board.
8. is the switch position.
1
10
9
FS
W.B
CNB 9
RU
1 BZ
SW2
LED1 LED2 SW1
MS
MS
3~
3~
DP
MF
<Fig.*1> SW2 (CAPACITY CODE)
MODELS
SW2
MODELS
SW2
WL04
ON OFF
123456
WL12
ON OFF
123456
WL06
ON OFF
123456
WL15
ON OFF
123456
WL08
ON OFF
123456
[LEGEND]
SYMBOL NAME
I.B
INDOOR CONTROLLER BOARD
CN24 EXTERNAL HEATER
CN32 REMOTE SWITCH
CN51 CENTRALLY CONTROL
CN52 REMOTE INDICATION
CN105 IT TERMINAL
F1
FUSE(T6.3AL 250V)
LED1 POWER SUPPLY (I.B)
LED2 POWER SUPPLY (MA-REMOTE CONTROLLER)
SW1 MODE SELECTION
SW2 CAPACITY CODE
SW3 MODE SELECTION
SW11 ADDRESS SETTING 1s DIGIT
SW12 ADDRESS SETTING 10s DIGIT
SW14 BRANCH No.
SW21 CEILING HEIGHT SELECTOR
SW22 PAIR NO. SETTING
SWE DRAIN PUMP (TEST MODE)
DP
DRAIN PUMP
MF
FAN MOTOR
MV
VANE MOTOR
FS
FLOAT SWITCH
TB2
TERMINAL POWER SUPPLY
TB5
BLOCK TRANSMISSION
TB15
MA-REMOTE CONTROLLER
TH21
ROOM TEMP. THERMISTOR
TH22
PIPE TEMP. THERMISTOR (INLET)
TH23
PIPE TEMP. THERMISTOR (OUTLET)
OPTION PART
W.B WIRELESS REMOTE CONTROLLER BOARD
BZ BUZZER
LED1 OPERATION (GREEN)
LED2 STAND BY (ORANGE)
RU RECEIVING UNIT
SW1 EMERGENCY OPERATION(HEAT)
SW2 EMERGENCY OPERATION(COOL)
MT
i-see Sensor MOTOR
TCH123
10
7 REFRIGERANT SYSTEM DIAGRAM
Heat exchanger
Pipe temperature detection
thermistor/ inlet
TH22
Water inlet
Water flow
connection
Manual air purge valve
Pipe temperature detection thermistor/ outlet TH23
Water outlet connection
Water flow
Room temperature detection thermistor TH21
WATER PIPE CONNECTION SIZE
Unit: inch (mm)
Service Ref. Item
TPLFYW04/06/08/12/15FM1W0A
Water outlet
Min. I.D. 25/32 (20)
Water inlet
Min. I.D. 25/32 (20)
8 MICROPROCESSOR CONTROL
INDOOR UNIT CONTROL 8-1. COOL OPERATION
MENU
RETURN
SELECT HOLD
ON OFF
Press ON/OFF button. Press [F1] button to display COOL. Press
[F2] [F3] button to set the set temperature. NOTE: The settable temperature
range varies with the model of outdoor units and remote controller.
Press POWER ON/OFF button. Press the operation MODE button to
display COOL. Press the TEMP. button to set the set temperature. NOTE: The set
temperature changes 1°F when the or button is pressed one time. Cooling 67 to
87°F
.
TCH123
11
Control Mode 1. Temperature
adjustment function
2. Fan
Control Details
Remarks
1-1. Determining temperature adjustment function
· The ON/OFF commands
(Function to prevent restarting for 3 minutes) · Room temperature Set
temperature + 2°F ···Thermo-ON · Room temperature Set temperature ···Thermo-
OFF
by the indoor unit thermostatic control are not an ON/OFF commands to the
1-2. Anti-freeze control Condition to detect When the pipe temperature
detection thermistor/liquid (TH22) detects 32°F or less in 16 minutes
compressor but an open/close commands to the linear expansion valve. (The
compressor
from thermo-ON, the anti-freeze control initiates, and the unit enters to the
thermo-OFF.
stops only when the
Condition to release
thermostatic control for all the indoor units
The timer which prevents reactivating is set for 3 minutes, and anti-freeze
control is
connected to the same outdoor unit turns OFF.)
Pipe temperature detection thermistor/liquid (TH22) reaches 50°F or above. The
condition of thermo-OFF has been completed by the thermostat. The operation
has changed to a mode other than COOLING.
By the remote controller setting (switch of 3 speeds+Auto)
Type 3 speeds + Auto type
Fan speed notch
Auto
3. Drain pump
When [Auto] is set, fan speed is changed depending on the value of: T = Room
temperature – Set temperature
High Med2 Med1 Low
1.8°F
3.15°F
5.4°F
T
3-1. Drain pump control · The drain pump will always run when the unit is in
COOL or DRYING mode. (Regardless of the thermo ON/OFF) · Whenever the
operation is changed over to the other modes (including Stop), the drain pump
will stop pumping after approximately 3 minutes.
Float switch control · Float switch control judges whether the sensor is in
the air or in the water by turning the
Float SW ON
OFF
15 s
15 s
15 s 1 min 30 s 1 min 30 s
4. Vane (up/down vane change)
In the water In the air
In the water
Error
Drain pump
postponement abnormal
(1) The initial vane setting for COOL mode will be the horizontal position.
(2) Vane position:
Horizontal Downward A Downward B Downward CDownward DSwingAuto
· “1h” appears on the wired remote controller.
(3) Restriction of the downward vane setting If the vane position is set to
Downward A/B/C/D in [Med1], [Med2], or [Low], the vane will return to the
horizontal position after 1 hour has passed.
TCH123
12
8-2. DRYING OPERATION
MENU
RETURN
SELECT HOLD
ON OFF
.
Press ON/OFF button. Press [F1] button to display DRYING.
Press [F2] [F3] button to set the set temperature.
Press POWER ON/OFF button. Press the operation MODE button to
display DRYING. Press the TEMP. button to set the set temperature. NOTE: The
set temperature changes 1°F when the or button is pressed one time. Dry 67 to
87°F
Control Mode
1. Temperature adjustment function
Control Details
1-1. Determining temperature adjustment function (Function to prevent
restarting for 3 minutes) Setting the Dry thermo by the thermostat signal and
the room temperature (TH21). Dry thermo-ON Room temperature Set temperature +
2°F Dry thermo-OFF Room temperature Set temperature
3 minutes passed since
Dry thermo-
Room temperature
starting operation
ON time
Thermostat signal Room temperature (T1)
(min)
T1 83°F
9
Over 64°F
ON
83°F > T1 79°F
7
79°F > T1 75°F
5
75°F > T1
3
OFF
Unconditional
3
Below 64°F
Dry thermo OFF
Dry thermoOFF time (min)
3 3 3 3 10
2. Fan
1-2. Anti-freeze control No control function
Indoor fan operation controlled depends on the compressor conditions.
Dry thermo
Fan speed notch
ON
[Low]
OFF
Excluding the following
Room temp. < 64°F
Note: Fan speed change is not allowed during DRYING operation.
Stop [Low]
3. Drain pump
4. Vane (up/down vane change)
Operates as it would in COOL operation. Settings are the same in DRYING
operation as they are in COOL operation.
Remarks
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13
8-3. FAN OPERATION
MENU
RETURN
SELECT HOLD
ON OFF
.
Press ON/OFF button. Press [F1] button to display FAN.
Press POWER ON/OFF button. Press the operation MODE button to
display FAN.
Control Mode
1. Temperature adjustment function
Set by remote controller. Type
3 speeds + Auto type
Control Details
Fan speed notch
Auto
Remarks
2. Drain pump
When [Auto] is set, fan speed becomes [Low]. 2-1. Drain pump control
ON for 3 minutes after the operation mode is switched from COOL or DRYING to
another operation mode (FAN).
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
· Operates as it would in COOL operation.
In the air
3. Vane (up/down vane change)
Same as the control performed during the COOL operation, but with no
restriction on the vane’s downward blow setting
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14
8-4. HEAT OPERATION
MENU
RETURN
SELECT HOLD
ON OFF
.
Press ON/OFF button. Press [F1] button to display HEAT. Press
[F2] [F3] button to set the set temperature. NOTE: The settable temperature
range varies with the model of outdoor units and remote controller.
Press POWER ON/OFF button. Press the operation MODE button to
display HEAT. Press the TEMP. button to set the set temperature. NOTE: The set
temperature changes 1°F when the or button is pressed one time. Heating 63 to
83°F
Control Mode
1. Temperature adjustment function
Control Details
1-1. Determining temperature adjustment function (Function to prevent
restarting for 3 minutes) · Room temperature Set temperature -2°F ···Thermo-ON
· Room temperature Set temperature ···Thermo-OFF
Remarks
2. Fan
By the remote controller setting (switch of 3 speeds+Auto)
Type 3 speeds + Auto type
Fan speed notch
Auto
When [Auto] is set, fan speed is changed depending on the value of: T = Set
temperature – Room temperature
Give priority to under-mentioned controlled mode 2-1. Hot adjust mode 2-2.
Residual heat exclusion mode 2-3. 2-4. Cool air prevention mode (Defrosting
mode)
stment function)
TCH123
Continue to the next page.
15
Control Mode
Control Details
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 temperature
adjustment function changes from OFF to ON. When release the HEAT defrosting
operation
Hot adjust mode1
Set fan speed by the remote controller [Low]3 [Extra Low]*3
1 “Heat Standby” will be displayed during the hot adjust mode. 2 The step change of A to B will not be
thermo-ON mode since the HEAT operation has started.
[OFF]*2
*3 The fan speed varies
A
B
C
D
according to the setting
A: Hot adjust mode starts. B: 5 minutes have passed since the condition A or
the indoor liquid pipe temperature reached 86°F or more. C: 5 minutes have
passed since the condition A or the indoor liquid pipe temperature reached
95°F or more.
of DIP SW1-7 and 1-8 as shown in the table below.
D: 2minutes have passed since the condition C. (Terminating the hot adjust
mode)
ON DIP SW
1-7 OFF
DIP SW 1-8
ON
OFF
B to C [Extra Low] C to D [Low]
B to C [Low] C to D [Low]
B to C [Extra Low] C to D [Low]
Note: Initial setting
2-2. Residual heat exclusion mode When the condition changes the auxiliary
heater ON to OFF (temperature adjustment function, or operation stop, etc.),
the indoor fan operates in [Low] mode for 1 minute.
· This control is same for the model without auxiliary heater.
3. Drain pump
2-3. Thermo-OFF mode When the temperature adjustment function changes to OFF,
the indoor fan operates in [Extra low].
2-4. Heat defrosting mode The indoor fan stops.
3-1. Drain pump control
ON for 3 minutes after the operation mode is switched from COOL or DRYING to
another operation mode (FAN).
control judges the sensor is in the water.
3-2. Float switch control
· Operates as it would in
· Float switch control judges whether the sensor is in the air or in the water
by turning the COOL operation.
4. Vane control (Up/down vane change)
(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 CDownward DSwingAuto
(3) Restriction of vane position
(The control by the remote controller is temporally invalidated and control by
the unit.) · Thermo-OFF · Hot adjust [Extra low] mode · Heat defrost mode
TCH123
16
8-5. AUTO OPERATION [AUTOMATIC COOL/HEAT CHANGE OVER OPERATION]
MENU
RETURN
SELECT HOLD
ON OFF
.
Press ON/OFF button. Press [F1] button to display AUTO. Press
[F2] [F3] button to set the set temperature. NOTE: The settable temperature
range varies with the model of outdoor units and remote controller.
Press POWER ON/OFF button. Press the operation MODE button to
display AUTO. Press the TEMP. button to set the set temperature. NOTE: The set
temperature changes 1°F when the or button is pressed one time. Automatic 67
to 83°F
Control Mode 1. Initial value of operation mode 2. Mode change
3. COOL mode 4. HEAT mode
Control Details
HEAT mode for room temperature < Set temperature COOL mode for room
temperature Set temperature
(1) HEAT mode COOL mode Room temperature Set temperature + 3°F or 3 minutes
have passed.
(2) COOL mode HEAT mode Room temperature Set temperature – 3°F or 3 minutes
have passed.
Operates as it would in COOL operation.
Operates as it would in HEAT operation.
Remarks
8-6. WHEN UNIT IS STOPPED CONTROL MODE
Control Mode
Control Details
1. Drain pump
1-1. Drain pump control
Remarks
ON for 3 minutes after the operation mode is switched from COOL or DRYING to
another operation mode (FAN).
control judges the sensor is in the water.
1-2. Float switch control · Float switch control judges whether the sensor is
in the air or in the water by
· Operates as it would in COOL operation.
In the air
TCH123
17
9 TROUBLESHOOTING
9-1. HOW TO CHECK THE PARTS
Parts name
Checkpoints
Thermistor (TH21)
Disconnect the connector then measure the resistance with a multimeter.
(Room temperature detection) (At the ambient temperature 50°F ~ 86°F)
Thermistor (TH22)
(Pipe temperature detection/inlet)
Normal
Abnormal
Thermistor (TH23) (Pipe temperature detection/outlet)
4.3 to 9.6 k
Open or short
Refer to “9-2-1. Thermistor Characteristic Graph”.
Vane motor (MV)
White
Orange Red
M
Blue Yellow
Measure the resistance between the terminals with a multimeter. (At the
ambient temperature 68°F ~ 86°F)
Normal
Abnormal
RedYellow
RedBlue RedOrange RedWhite 300 ± 7%
Open or short
Fan motor (MF) Drain pump (DP)
1 Red 2 Purple 3 Black
Drain float switch (FS)
Refer to “9-1-4. DC Fan motor (fan motor/indoor controller board)”.
Check if the drain float switch works properly.
Check if the drain pump works and drains water properly in cooling operation.
If no water drains, confirm that the check code 2502 will not be displayed 10
minutes after the operation starts.
Note: The drain pump for this model is driven by the internal DC motor, so it
is not possible to measure the resistance between the terminals.
Normal RedBlack: Input 13 VDC The fan starts to rotate. PurpleBlack:
Abnormal (check code 2502) if it outputs 013 V square wave (5
pulses/rotation), and
the number of rotation is not normal.
Measure the resistance between the terminals with a multimeter.
Moving part 1 2 3 4
State of moving part UP
DOWN
Normal Short Open
Abnormal Other than short Other than open
Switch Magnet
Moving Part
i-see Sensor *
Turn the power ON while the i-see Sensor connector is connected to the CN4Z on
indoor controller board. A communication between the indoor controller board
and i-see Sensor board is made to detect the connection.
Normal: When the operation starts, the motor for i-see Sensor is driven to
rotate the i-see Sensor. Abnormal: The motor for i-see Sensor is not driven
when the operation starts.
1 2 34
Note: The voltage between the terminals cannot be measured accurately since it
is pulse output.
1 2 34
Black Black Black Black 65432 1 32 1
i-see Sensor motor *
White
M
Orange
Red Blue Yellow
Measure the resistance between the terminals with a multimeter. (At the
ambient temperature 68°F ~ 86°F)
RedYellow
Normal RedBlue RedOrange
250 ± 7%
RedWhite
Abnormal Open or short
Pressure sensor (Optional parts)
Pressure sensor (inner water) PS1 Pressure sensor (outlet water) PS2 1. Check
that the pressure sensor is connected. 2. Check the pressure sensor wiring for
breakage.
Pressure 0-1.0 MPa [145 psi] Vout 0.5-4.5 V 0.392 V/ 0.098 MPa [14 psi]
Pressure [MPa] = 0.25 × Vout [V] – 0.125 Pressure [psi] = (0.25 × Vout [V] –
0.125) × 145
PS1
GND(RED) Vout(Brown) Vcc(DC5V)(Orange)
i-see Sensor is available with optional “i-see Sensor corner panel” (SLP-18FAEU).
PS2
Connector CNSA (White)
GND(Blue) Vout(White) Vcc(DC5V)(Yellow)
Connector CNSB (Black)
TCH123
18
Parts name
Flow control valve
(FCV)
M FCV (Optional parts)
CN8A Yellow 1 Orange 2 Red 3 Green 4 Blue 5 Purple 6 White 7
Gray 8
Checkpoints
Disconnect the connector then measure the resistance between terminals with a
multimeter. Refer to “8-1-2. Flow control valve”.
Normal
Abnormal
1-5
2-5
3-5
4-5
Purple-Brown Orange-Brown Blue-Brown Green-Brown Open or short
55 ± 5.6 (at 77°F
9-1-1. Thermistor Characteristic Graph
Thermistor for lower temperature
thermistor (TH21) (Room temperature detection) thermistor (TH22) (Pipe
temperature detection/ inlet) thermistor (TH23) (Pipe temperature detection/
outlet)
Thermistor R0=15 k” ± 3% Fixed number of B=3480 ± 2%
Rt=15exp { 3480(
1
273+(t-32)/1.8
30°F 50°F 70°F 80°F 90°F 100°F
15.8k 9.6k 6.0k 4.8k 3.9k 3.2k
1 )} 273
Resistance (k)
< Thermistor for lower temperature > 50
40
30
20
10
0 -20 0
20 40 60 80 100 120 Temperature (°F)
TCH123
19
9-1-2. Flow control valve
Summary of flow control valve (FCV) operation The FCV is operated by a
stepping motor, which operates by receiving a pulse signal from the indoor
control board. The FCV position changes in response to the pulse signal.
Flow control valve
Control board
Limit signal (Opening “0” signal)
Ø1 M
Ø3 Ø2 Ø4
Connector 1
2
3 4 5 6 7
8
Gray
8
White 7
Purple 6
Blue
5
Ø4 Green 4
Ø3 Red
3
Ø2 Orange 2
Ø1 Yellow 1
GND
Microprocessor
12V
Drive circuit Ø4 Ø3 Ø2 Ø1
Connector (CN8A)
Pulse signal output and valve operation
Output (phase) number
Ø1 Ø2 Ø3 Ø4
1 OFF ON ON OFF
Output status
2
3
ON
ON
ON
OFF
OFF
OFF
OFF
ON
4 OFF OFF ON ON
The output pulse changes in the following order: When the valve closes 1 -> 2
-> 3 -> 4 -> 1 When the valve opens 4 -> 3 -> 2 -> 1 -> 4
FCV operation
(a) (f)
(a) Close (b) Open (c) Fully open valve (85 pulses) (d) Fully close valve (770
pulses) (e) No. of pulses (f) Valve opening degree
(b)
(c)
(d)
(e)
TCH123
20
9-1-3. Drain pump
1 Red 2 Purple 3 Black
1. Check if the drain float switch works properly. 2. Check if the drain pump
works and drains water properly in cooling operation. 3. If no water drains,
confirm that the check code 2502 will not be displayed 10 minutes after the
operation starts. Note: The drain pump for this model is driven by the
internal DC motor, so it is not possible to measure
the resistance between the terminals.
Normal RedBlack: Input 13 VDC The fan starts to rotate. PurpleBlack:
Abnormal (check code 2502) if it outputs 013 V square wave (5
pulses/rotation), and
the number of rotation is not normal.
9-1-4. DC Fan Motor (Fan Motor/Indoor Controller Board)
Check method of indoor fan motor (fan motor/indoor controller board) Notes ·
High voltage is applied to the connector (CNMF) for the fan motor. Pay
attention to the service. · Do not pull out the connector (CNMF) for the motor
with the power supply on. (It causes trouble of the indoor controller board
and fan motor) Self check Conditions : The indoor fan cannot turn around.
Indoor controller board fuse check
Is the fuse normal?
No
Yes
Wiring contact check Contact of fan motor connector (CNMF)
Is the resistance between the terminals of
Yes
drain pump normal?
No Replace the drain pump.
Replace the defective fan motor. Replace the indoor controller board.
Is there contact failure?
Yes
Fix the connection
No
Power supply check (Remove the connector (CNMF)) Measure the voltage in the
indoor controller circuit board. TEST POINT : VDC (between 1 (+) and 4 (-) of
the fan connector): VDC 294325 VDC TEST POINT : VCC (between 5 (+) and 4 (-)
of the fan connector): VCC 15 VDC
Is the voltage normal? No
Replace the indoor controller board.
Check the operation. Fail
Yes
Replace the defective fan motor.
Check the operation of fan. Fail
OK COMPLETE
Replace the indoor controller board. OK
COMPLETE
Replace the defective fan motor.
TCH123
21
9-2. FUNCTION OF DIP SWITCH
Switch SW1 Function Selection
Pole
1
2 3 4 5 6 7 8 9 0
Function
Operation by switch
ON
OFF
Thermistor position
Built-in remote controller
Indoor unit
Filter clogging detection
Provided
Not provided
Filter cleaning
2,500h
100h
Fresh air intake
Effective
Not effective
Remote indication switching
Thermo ON signal indication
Fan output indication
—
—
—
Airflow set in the case Low 1 of Heat thermo OFF Setting airflow 1
Address setting should be done when M-NET remote controller is being used.
This is the switch to be used when the indoor unit is operated with R2 series
outdoor unit as a set.
Before power supply
ON
Rotary switch
*1 Refer to the
below.
SW1-7 OFF ON OFF ON
SW1-8 OFF OFF ON ON
Extra low Low Setting airflow stop
Remarks
Indoor controller board
ON OFF
1234567 8 90
Indoor controller board
Set for each capacity.
Indoor controller board
Set for each capacity. ON OFF
1234567 8 90
Indoor controller board
SW12 SW11
90 1
90 1
78 BCD
78
45 6
45 6
23
345 23
This figure means “0”. Indoor controller board
SW14
EF 0 12
6789A
This figure means “0”.
TCH123
Continue to the next page
22
Switch
SW21 Function selection
SW22 Function selection
Pole
1 2 3 4 5 6
Function
Operation by switch
ON
OFF
Setting ceiling height Depends on SW21-1, SW21-2
—
—
—
—
—
—
—
—
Effective timing
Under operation
or suspension
Remarks
ON OFF
1 234 56
Silent Standard High
SW21-1
OFF ON
SW21-2 ON OFF OFF
Height 8.2 ft. [2.5 m] 8.9 ft. [2.7 m] (default setting) 9.8 ft. [3.0 m]
Function
1
2
3 Pair No. of wireless remote controller
4 Pair No. of wireless remote controller
ON
OFF
Depends on SW22-3, 22-4
· To operate each indoor unit by each remote controller when
installed 2 indoor units or more are near, Pair No. setting is
1
necessary.
Pair No. setting is available with the 4 patterns (Setting patterns A to D).
Make setting for J41, J42 of indoor controller board and the Pair
No. of wireless remote controller.
2
4
· Pair No. setting is not set necessarily when operating it by one
3
remote controller. Setting for indoor unit
Cut jumper wire J41, J42 on the indoor controller board
according to the table below.
Wireless remote controller pair number: Setting operation (Fig. 1 A)
Under operation
1. Press the
button 1 to stop the air conditioner.
or
2. Press the
button 2.
suspension
3. Check that function No.”1″ is displayed, and then press the
button 3. The Screen display setting screen will be displayed. (Fig. 2.)
A
Pair No. changing operation (Fig. 2 B) 1. Press the button 4.
2. Each time the button 4 is pressed, the pair No.03 changes.
3. Press the
button 3 to check the setting.
4. Press the
button 2.
Fig. 1
Jumper
Indoor unit SW22
SW22-3 SW22-4
ON
ON
OFF
ON
ON
OFF
OFF
OFF
Pair No. of wireless remote controller
0
1 2 39
Initial setting
B
Fig. 2
SWE Test run for Drain
pump
Connector
Drain pump and fan are activated simultaneously after the connector SWE is set
to ON and turn on the power.
Note: The voltage range of 12 VDC in this page is between 11.5 to 13.7 VDC.
TCH123
24
CN3M M-NET transmission connecting wire 24-30 VDC (non polar)
CNV Vane motor (MV) 12 V pulse output SW21 Number of air outlets and height
of the ceiling SW14 Branch No. SW12 Address setting 10s digit SW11 Address
setting 1s digit CN32 Remote switch SW22 Pair No.setting for wireless remote
controller SW1 Function setting SW2 Capacity setting
SW3 Function setting CN4Z i-see Sensor (Sensor)
SWE Jumper switch (Emergency operation)
CN90 Connect to the wireless remote controller board (CNB)
Main power supply (Indoor unit: 208/230 V)
F1 FUSE (6.3 A/250 V)
CND Power supply for indoor controller board
: 208/230 VAC
10 DISASSEMBLY PROCEDURE
: Indicates the visible parts in the photos/figures.
Be careful when removing heavy parts.
OPERATING PROCEDURE
1. Removing the air intake grille and air filter (1) Slide the knob of air
intake grille to the direction of the arrow 1 to open the air intake grille.
(2) Remove the grille hook from the panel to prevent the grille from dropping.
(3) Slide the hinge of the intake grille to the direction of the arrow 2 and
remove the air filter.
PHOTOS/ FIGURES
Figure 1 Air intake grille
Grille hook Air filter
1
1
2
Grille
Air intake grille knobs
2. Removing the panel (1) Remove the air intake grille. (Refer to procedure
Photo 1
Screw
Fastener*
Connector box (See Photo 1) (2) Remove the screw of the connector cover. (3)
Slide the connector cover to the direction of the arrow to
open the cover. (4) Disconnect all the connectors, then pull out the
connectors
that are coming from panel side from the connector box.
Connector box Fastener*
Corner panel (See Figure 2 and Photo 2) (5) Loosen the screw from the corner
of the corner panel. (6) Slide the corner panel as indicated by the arrow. (7)
Remove the safety strap from the hook, then remove the cor-
ner panel from the panel. (The safety strap is not equipped for the signal
receiver panel and i-see Sensor corner panel.) (8) Remove the fastener (*),
then remove the corner panel.
Figure 2
Connector cover Screw
Grille
Panel (See Photo 3) (9) Remove the 4 screws. (10) Unlatch the 2 hooks.
Fastener is only for the signal receiver and i-see Sensor corner panel.
Corner panel
Photo 2 Safety strap
Hook
TCH123
Photo 3
Screws
Hook
Screws
25
Turbo fan
Nut and washer for turbo fan
Hook
OPERATING PROCEDURE
3. Removing the electrical parts (1) Loosen the 2 screws on the control box
cover. (2) Slide the control box cover as indicated by the arrow to remove.
4. Removing the room temperature thermistor (TH21) (1) Remove the panel.
(Refer to procedure 2)
Photo 6
Room temperature thermistor (TH21) (See Photo 6) (2) Remove the 2 lead wire
cover fixing screws. (See Photo 6) (3) Open the lead wire cover, then remove
the connector cover from the connector box. (4) Remove the band that fixes the
room temperature thermistor (TH21) to the connector box. (5) Remove the room
temperature thermistor (TH21) from the connector box. (6) Remove the connector
(CN20) from the indoor controller board, and disconnect the room temperature
thermistor (TH21).
Lead wire cover
Lead wire cover fixing screws
Note: When fixing the thermistor, make sure to fix it to the connector box
using a band.
Room temperature thermistor (TH21)
Connector cover
5. Removing the drain pan (1) Remove the panel. (Refer to procedure 2) (2)
Remove the room temperature thermistor (TH21). (Refer to procedure 4)
Photo 7
Connector box (See Photo 7) (3) Remove the connector box fixing screw. (4)
Slide the connector box as indicated by the arrow 1, then
remove the claw from bell mouth.
Bell mouth (See Photo 7) (5) Remove the 4 bell mouth fixing screws, then
remove the bell
mouth.
Connector box fixing screw
Drain pan (See Photo 7) (6) Remove the 4 drain pan fixing screws, then remove
the
drain pan.
Drain pan fixing screws
1 Bell mouth fixing screws
TCH123
Drain pan fixing screws
26
OPERATING PROCEDURE
6. Removing the pipe temperature thermistor/ inlet (TH22) and pipe
temperature thermistor/ outlet (TH23) (1) Remove the panel. (Refer to
procedure 2) (2) Remove the room temperature thermistor (TH21). (Refer to
procedure 4) (3) Remove the drain pan. (Refer to procedure 5)
PHOTOS/ FIGURES
Photo 8 Pipe temperature thermistor/ outlet (TH23)
Pipe temperature thermistor/ inlet (TH22) and pipe temperature thermistor/
outlet (TH23) (See Photo 8)
(4) Remove the control box cover. (Refer to procedure 3) (5) Disconnect the
thermistor connectors from the CN44 on the
indoor controller board. (6) Cut the band fixing the thermistor connectors to
the fan
motor cable. (7) Remove the thermistors from the holders on heat exchanger.
Note: When re-attaching the thermistor connectors to the fan motor cable, make
sure to put the fixed band into the groove. (See Photo 8-1)
Pipe temperature thermistor/ inlet (TH22) Photo 8-1
Band
Band Fan motor cable
Fan motor cable
7. Removing the fan motor (MF) (1) Remove the panel. (Refer to procedure 2)
(2) Remove the room temperature thermistor (TH21). (Refer to procedure 4) (3)
Remove the drain pan. (Refer to procedure 5)
Turbo fan (See Photo 3) (4) Remove the nut and washer from the turbo fan. (5)
Remove the turbo fan from the motor shaft.
Notes:
· When assembling, make sure that the protrusions on the
turbo fan fit into the holes on the washer.
· Tightening torque for the nut: 4.5 ± 0.5 Nm, 3.3±0.4 ft·lbs.
Turbo fan
Washer
Photo 9 Band
Motor lead cover
Motor lead cover fixing screws
Clamps
Motor lead cover fixing screws
Nuts and washers
Protrusions
Holes
Fan motor (See Photo 9)
(6) Remove the control box cover. (Refer to procedure 3)
(7) Disconnect the fan motor cable from the CNMF on the indoor controller
board.
(8) Remove the 2 motor lead cover fixing screws, then remove the motor lead
cover.
(9) Loosen the 3 clamps fixing the fan motor cable. (10) Cut the band. (11)
Remove the 3 nuts and washers, then remove the fan motor. (12) Remove the 3
motor mounts.
Notes: 1. When re-attaching the motor mount, make sure that the
thicker end faces the motor shaft. (See Photo 10-1)
2. When re-attaching the turbo fan, make sure that the tightening torque for
nuts is 5 N·m, 3.7 ft·lbs or lower.
Nut and washer
Fan motor
Photo 10
Fan motor
Photo 10-1 Fan motor
Motor mounts
Thicker end Motor mount
TCH123
27
OPERATING PROCEDURE
8. Removing the drain pump (DP) and float switch (FS) (1) Remove the panel.
(Refer to procedure 2) (2) Remove the room temperature thermistor (TH21).
(Refer to procedure 4) (3) Remove the control box cover. (Refer to procedure
3) (4) Remove the drain pan. (Refer to procedure 5)
Drain pump (See Photo 11 and 12) (5) Disconnect the drain pump connector from
the CNP and
float switch connector from CN4F on the indoor controller board. (6) Loosen
the clamp fixing the connectors on the side of the control box. (7) Cut the
hose band and release the hose. (8) Remove the 2 screws fixing the drain pump
and float switch to the inner cover. (9) Slide the base plate of the drain
pump and float switch as indicated by the arrow 1 to remove. (10) Cut the
band. (See Photo 12) (11) Remove the 3 drain pump fixing screws, then remove
the drain pump. (See Photo 12)
PHOTOS/ FIGURES
Photo 11 Screw
Clamp Inner cover
1
Drain pump (DP)
Screw
Hose
Hose band
Photo 12 Drain pump (DP)
Float switch (FS)
Drain pump fixing screws
Notes: 1. When re-attaching the drain pump, make sure to use a band
to fix the connector to the base plate. 2. Do not give a shock to the float
switch. Otherwise it can
cause damage or malfunction.
Drain pump fixing screws
Band
Base plate
9. Removing the heat exchanger (1) Remove the panel. (Refer to procedure 2)
(2) Remove the room temperature thermistor (TH21). (Refer to procedure 4) (3)
Remove the drain pan. (Refer to procedure 5) (4) Remove the turbo fan and fan
motor. (Refer to procedure 7)
Photo 13 Pipe cover
Heat exchanger (See Photo 13 and 14) (5) Remove the 3 pipe cover fixing screws
to remove the pipe
cover. (6) Remove the 2 coil plate fixing screws. (7) Remove the coil support
fixing screw, then remove the coil
support. (8) Remove the heat exchanger.
Pipe cover fixing screws
Photo 14 Coil plate
Float switch (FS)
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Coil plate fixing screws Heat exchanger
28
Coil support Coil support fixing screw
11 REMOTE CONTROLLER
11-1. REMOTE CONTROLLER FUNCTIONS
Controller interface
MENU
RETURN
SELECT HOLD
ON OFF
Function buttons
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.
Main display
Fri
Cool
Mode
Room 83
Set temp.
83
Temp.
Auto
Fan
Main menu
Main Main menu
Energy saving
7 890
Menu screen
Operation Vane·Louver·Vent. (Lossnay) High power Comfort
Main menu: RETURN Cursor
7 890
Function guide
7 890
[ON/OFF] button Press to turn ON/OFF the indoor unit.
[SELECT/HOLD] button Press to save the setting. When the Main menu is
displayed, pressing this button will enable/disable the HOLD function.
[RETURN] button Press to return to the previous screen.
[MENU] button Press to bring up the Main menu.
Backlit LCD 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 depending on the screen.
When the backlight is off, pressing any button turns the backlight on and does
not perform its function. (except for the [ON/OFF] button)
ON/OFF lamp 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.
Function button [F1] Main display: Press to change the operation mode. Menu
screen: The button function varies with the screen.
Function button [F2] Main display: Press to decrease temperature. Main menu:
Press to move the cursor left. Menu screen: The button function varies with
the screen.
Function button [F3] Main display: Press to increase temperature. Main menu:
Press to move the cursor right. Menu screen: The button function varies with
the screen.
Function button [F4] Main display: Press to change the fan speed. Menu screen:
The button function varies with the screen.
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Display
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.)
All icons are displayed for explanation.
$
2345 6 7
8
$
2
6
7
8 90
Room 83
Cool Set temp.
1
83
1
Mode
Temp.
Fri 3 9 @ )
Auto
4
Fan
Fri 3
Cool Set temp. Auto
1 83
4
Mode
Temp.
Fan
!
2
5 Operation mode
Preset temperature
5
Appears when the Weekly timer is enabled.
Clock Fan speed Button function guide Functions of the corresponding buttons
appear here.
Appears when the ON/OFF operation is centrally controlled.
Appears while the units are operated in the energy saving mode. (Will not
appear on some models of indoor units)
Appears while the outdoor units are operated in the silent mode.
Appears when the built-in thermistor on the remote controller is activated to
monitor the room temperature (1).
appears when the thermistor on the indoor unit is activated to monitor the
room temperature.
Appears when the operation mode is centrally controlled.
Indicates the vane setting.
Appears when the preset temperature is centrally controlled. Indicates the
louver setting.
Appears when the filter reset function is centrally controlled.
Indicates the ventilation setting.
Indicates when filter needs maintenance. Room temperature
Appears when the preset temperature range is restricted.
Appears when the buttons are locked.
Appears when the On/Off timer or Auto-off timer function is enabled. appears
when the timer is disabled by the centralized control system. appears when the
HOLD function is enable.
Appears when an energy saving operation is performed using a “3D i-See sensor”
function.
Centrally controlled
Appears for a certain period of time when a centrally-controlled item is
operated.
Preliminary error display
A check code appears during the preliminary error.
Most settings (except ON/OFF, mode, fan speed, temperature) can be made from
the Main menu.
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Menu structure Main menu
Press the [MENU] button. Move the cursor to the desired item with the F1 and
F2 buttons, and press the [SELECT/HOLD] button.
Operation
Vane · Louver · Vent. (Lossnay) High power Comfort Manual vane angle 3D i-see
Sensor
Timer menu
Timer ON/OFF timer Auto-OFF timer Weekly timer OU silent mode
Energy saving
Restriction Temp. range Operation locked
Energy saving Auto return Schedule
Initial setting menu
Basic setting Main/Sub Clock Clock Daylight saving time Administrator password
Continue to the next page.
Display setting Main display Display details Contrast · Brightness Language
selection
Operation setting Auto mode Setback mode
Not all functions are available on all models of indoor units.
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31
Continue from the previous page.
Maintenance menu
Error information Filter information
Cleaning Auto descending panel Descending operation Descending adjustment
Service menu Test run menu Test run Drain pump test run
Maintenance information Model name input Serial No. input Dealer information
input Initialize maintenance info.
Settings menu Function setting Lossnay
Check menu Error history Diagnosis Self check Remote controller check
Other menu Maintenance password Initialize remote controller Remote controller
information
Not all functions are available on all models of indoor units.
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32
Main menu list
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 *3
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
Use to fix each vane angle.
Timer
Timer
3D i-see Sensor ON/OFF timer *1
Use to set the following functions for 3D i-see Sensor. · Air distribution ·
Energy saving option · Seasonal airflow
Use to set the operation ON/OFF times. · Time can be set in 5-minute
increments.
Energy saving
Auto-OFF timer Weekly timer 1, 2
OU silent mode 1, 3
Restriction Temp. range *2
Use to set the Auto-OFF time. · Time can be set to a value from 30 to 240 in
10-minute increments.
Use 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.)
Use 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.
Use to restrict the preset temperature range. · Different temperature ranges
can be set for different operation modes.
Energy saving
Operation lock Auto return 2
Schedule 1
Use to lock selected functions. · The locked functions cannot be operated.
Use to get the units to operate at the preset temperature after performing
energy saving operation for a specified time period. · 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.)
Set 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.
1 Clock setting is required. 2 1°C (2°F) increments. *3 This function can only be set when certain outdoor units are connected.
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Main menu Initial setting
Maintenance
Service
Setting and display items
Setting details
Basic Main/Sub setting
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 Main display setting
Use to switch between Full and Basic modes for the Main display, and use to
change the background colors of the display to black.
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
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 Auto mode setting
Whether or not to use Auto mode can be selected by using the button. This
setting is valid only when indoor units with 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.
Error information
Use to check error information when an error occurs. · Check code, error
source, refrigerant address, model name, manufacturing
number, contact information (dealer’s phone number) can be displayed. (The
model name, manufacturing number, and contact information need to be
registered in advance to be displayed.)
Filter information
Use to check the filter status. · The filter sign can be reset.
Cleaning Auto descending Use to lift and lower the auto descending panel
(Optional parts). panel
Test run
Select Test run from the Service menu to bring up the Test run menu. · Test
run · Drain pump test run
Input maintenance info.
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.
Others Maintenance password
Use to change the maintenance password.
Initialize remote Use to initialize the remote controller to the factory
shipment status. controller
Remote control- Use to display the remote controller model name, software
version, and serial ler information number.
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Note: The phrase “Wired remote controller” in this manual refers only to the
TAC-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.
Backlit LCD
TEMP. button
.
MODE button
ON/OFF lamp
The lamp will light up in green when turned on, and blink during startup and
when an error occurs.
ON/OFF button
Pressing this button starts and stops the operation.
FAN button
VANE button
Note: To set the functions that are not available on this controller (TAC-
YT53CRAU) such as Louver, use the centralized controller.
Display section
CENTRAL icon *1
Note: All icons are displayed for explanation purpose.
CHECK icon 2 Preset temperature 3
icon appears while the unit is operated in the energy-save mode
icon appears when Operation lock setting is effective.
icon appears when indoor unit functions are set up. (Refer to the Installation
Manual.)
Fan speed icon Vane icon
icon appears when the power is on.
Indoor temperature Operation modes
*1 CENTRAL icon
Appears when one of the following local operations is prohibited: ON/OFF;
operation mode; preset temperature; fan speed; vane.
*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.
*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 COOLHEATFAN DRYING VENTI. SETBACK
Preset temperature
Room Set to
AUTO COOLHEATFAN DRYING VENTI. SETBACK
Cooling preset temperature
Heating preset temperature
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35
Controller interface
Set Temperature buttons
Mode button (Changes operation mode) Airflow button (Changes up/ down airflow
direction) Timer ON button Timer OFF button
Weekly timer ON/OFF button*
Set Time button (Sets the time)
Display
Operation mode Cool Fan
Heat
Dry
Auto (single set point)
Auto (dual set point)
Temperature setting The units of temperature can be changed. For details,
refer to the Installation Manual.
Vane setting Step 1 Step 2 Step 3 Step 4 Step 5 Swing Auto
Transmission area Remote controller display
OFF/ON button
Fan Speed button (Changes fan speed) i-see button Menu button SET/SEND button
CANCEL button Up/Down buttons
Reset button Note: This button is enabled or disabled depending on the
model of the indoor unit.
Not available Appears when a non-supported function is selected.
Battery replacement indicator Appears when the remaining battery power is low.
Fan speed setting Auto
3D i-see Sensor (Air distribution)
Default
Direct
Indirect When Direct or In-
direct is selected,
the vane setting is
set to Auto.
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36
11-2. ERROR INFORMATION
When an error occurs, the following screen will appear. Check the error
status, stop the operation, and consult your dealer. 1. Check code, error
unit, refrigerant address, model name, and serial number will appear. The
model name and serial number will appear only if the information has been
registered. Press the F1 or F2 button to go to the next page.
Contact information (dealer’s phone number) will appear if the information has
been registered.
2. Press the F4 button or the [ON/OFF] button to reset the error that is
occurring. Errors cannot be reset while the ON/OFF operation is prohibited.
Select “OK” with the F4 button.
Navigating through the screens · To go back to the Service menu ………. [MENU]
button
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37
Error information
Error code A3
Error unit IU
Unit#1
Time Occurred 2/ 1 4:48
Model name
Serial No.
Reset error: Reset button
Page
Reset
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4 blinks
ON OFF
Error information
Contact information Dealer
Tel
Reset error: Reset button
Page
Reset
Error information
Error code A3
Error unit IU
Unit#1
Time Occurred 2/ 1 4:48
Model name
Serial No.
Reset error: Reset button
Page
Reset
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4 blinks
ON OFF
Error reset Reset current error?
Cancel OK
F1 F2 F3 F4
Error reset Error reset Main menu: MENU
· Checking the error information
While no errors are occurring, page 2/2 of the error information can be viewed
by selecting “Error information” from the Maintenance menu. Errors cannot be
reset from this screen.
Maintenance menu Error information Filter information Cleaning
Main menu: RETURN Cursor
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
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11-3. SERVICE MENU
Maintenance password is required 1. Select “Service” from the Main menu, and
press the [SELECT/HOLD] button.
*At the main display, the menu button and select “Service” to make the maintenance setting.
Main Main menu Service
2. When the Service menu is selected, a window will appear asking for the
password. To enter the current maintenance password (4 numerical digits), move
the cursor to the digit you want to change with the F1 or F2 button.
Set each number (0 through 9) with the F3 or F4 button.
Then, press the [SELECT/HOLD] button.
Note: The initial maintenance password is “9999”. Change the default password
as necessary to prevent unauthorized access. Have the password available for
those who need it.
: If you forget your maintenance password, you can initialize the password to
the default password “9999” by pressing and holding the F1 button for 10
seconds on the maintenance password setting screen.
3. If the password matches, the Service menu will appear. The type of menu
that appears depends on the connected indoor units’ type.
Note: Air conditioning units may need to be stopped to make only at
“Settings”. There may be some settings that cannot be made when the system is
centrally controlled.
A screen will appear that indicates the setting has been saved.
Navigating through the screens · To go back to the Service menu ………….. [MENU]
button · To return to the previous screen…………… [RETURN] button
Service menu Enter maintenance password
Select: SELECT Cursor
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4
ON OFF
Service menu Test run Input maintenance info. Settings Check Others Main menu:
RETURN
Cursor
Service menu
Not available. Please stop the unit.
Service menu: RETURN
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11-4. TEST RUN
11-4-1. PAR-41MAA 1. Select “Service” from the Main menu, and press the
[SELECT/HOLD] button.
Select “Test run” with the F1 or F2 button, and press the [SELECT/HOLD]
button.
2. Select “Test run” with the F1 or F2 button, and press the [SELECT/HOLD]
button.
Test run operation Press the F1 button to go through the operation modes in
the order of “Cool and Heat”.
Cool mode: Check the cold air blows out. Heat mode: Check the heat blows out.
Check the operation of the outdoor unit’s fan. Press the [SELECT/HOLD] button
and open the Vane setting screen.
Auto vane check Check the auto vane with the F1 F2 buttons. Press the [RETURN]
button to return to “Test run operation”. Press the [ON/OFF] button. When the
test run is completed, the “Test run menu” screen will appear. The test run
will automatically stop after 2 hours. *The function is available only for the
model with vanes.
Service menu
Test run Input maintenance info. Settings Check Others
Main menu: RETURN Cursor
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4
ON OFF
Test run menu
Test run Drain pump test run
Service menu: MENU Cursor
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4
ON OFF
Test run
Remain
Cool Mode
Pipe 83°F
Switch disp. SELECT
Auto Fan
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4
ON OFF
Test run
Remain
Vane
F1 F2 F3
MENU
RETURN
SELECT HOLD
F4
ON OFF
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11-4-2. PAR-SL101A-E
1. Press the
button 1 to stop the air conditioner.
· If the weekly timer is enabled ( is on), press the
button 3 to disable it ( is off).
2. Press the
button 2 for 5 seconds.
B
· comes on and the unit enters the service mode.
3. Press the
button 2.
· B comes on and the unit enters the test run mode.
4. Press the following buttons to start the test run.
A
: Switch the operation mode between cooling and heating
and start the test run.
1
: Switch the fan speed and start the test run.
: Switch the airflow direction and start the test run.
: Switch the louver and start the test run.
: Start the test run.
2
5. Stop the test run.
· Press the
button 1 to stop the test run.
3
· After 2 hours, the stop signal is transmitted.
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11-5. FUNCTION SETTING
11-5-1. PAR-41MAA 1. Select Service from the Main menu, and press the
[SELECT/HOLD] button.
Select Setting from the Service menu, and press the [SELECT/HOLD] button.
Select Function setting, and press the [SELECT/HOLD] button.
2. The Function setting screen will appear. Press the F1 or F2 button to move
the cursor to one of the following: M-NET address, function setting number, or
setting value. Then, press the F3 or F4 button to change the settings to the
desired settings.
Once the settings have been completed, press the [SELECT/HOLD] button. A
screen will appear indicating that the settings information is being sent. To
check the current settings of a given unit, enter the setting for its M-NET
address and function setting number, select Conf for the Function, and press
the [SELECT/HOLD] button. A screen will appear indicating that the settings
are being searched for. When the search is done, the current settings will
appear.
When the settings information has been sent, a screen will appear indicating
its completion. To make additional settings, press the [RETURN] button to
return to the screen shown in the above step. Set the function numbers for
other indoor units by following the same steps.
Settings menu
Function setting Lossnay
Service menu: MENU Cursor
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
Function setting
M-NET address 3
Function No.
32
Data
2
Function
Set /Conf
Select: SELECT
Cursor
Address
Function setting
M-NET address 3
Function No.
32
Data
2
Sending data
Function setting
M-NET address 3
Function No.
32
Data
2
Setting completed
Return: RETURN
Note: · Refer to the indoor unit Installation Manual for information about the
factory settings
of indoor units, function setting numbers, and setting values. · Be sure to
write down the settings for all functions if any of the initial settings has
been changed after the completion of installation work.
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11-5-2. PAR-SL101A-E
Fig. 11-1
A
Fig. 11-2
B
Fig. 11-3
C
Fig. 11-4
1. Going to the function select mode
Press the
button between of 5 seconds.
(Start this operation from the status of remote controller display turned
off.)
[CHECK] is lit and 00 blinks. (Fig. 11-1)
Press the button to set the 50.
Direct the wireless remote controller toward the receiver of the indoor unit
and press the
button.
2. Setting the unit number
Press the button to set unit number A. (Fig. 11-2)
Direct the wireless remote controller toward the receiver of the indoor unit
and press the
button.
3. Select a mode
Press the button to set Mode number B. (Fig. 11-3)
Direct the wireless remote controller toward the receiver of the indoor unit
and press the
button.
Current setting number:
1=1 beep (1 second)
2=2 beep (1 second each)
3=3 beep (1 second each)
4. Selecting the setting number
Use the button to change the Setting number C. (Fig. 11-4)
Direct the wireless remote controller toward the receiver of the indoor unit
and press the
button.
5. To select multiple functions continuously
Repeat select 3 and 4 to change multiple function settings continuously.
6. Complete function selection
Direct the wireless remote controller toward the sensor of the indoor unit
and press the
button.
Note: Make the above settings on Indoor units as necessary. · Be sure to write
down the settings for all functions if any of the initial
settings has been changed after the completion of installation work.
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11-6. ERROR HISTORY
1. Select Service from the Main menu, and press the [SELECT/HOLD] button.
Select Check with the F1 or F2 button, and press the [SELECT/HOLD] button.
2. Select Error history with the F1 or F2 button, and press the [SELECT/HOLD]
button.
3. 16 error history records will appear. 4 records are shown per page, and
the top record on the first page indicates the latest error record.
Service menu
Test run Input maintenance info. Settings Check Others
Main menu: RETURN Cursor
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
Check menu Error history Diagnosis
Service menu: MENU Cursor
Error history
Error Unt# dd/mm/yy
6831 6831 6831
6831
Check menu: RETURN
Page
Delete
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
4. Deleting the error history To delete the error history, press the F4
button (Delete) on the screen that shows error history. A confirmation screen
will appear asking if you want to delete the error history.
Press the F4 button (OK) to delete the history.
Error history deleted will appear on the screen. Press the [RETURN] button to
go back to the Check menu screen.
Error history Delete error history?
Cancel OK
Error history Error history deleted Check menu: RETURN
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11-7. SELF-DIAGNOSIS
11-7-1. PAR-41MAA
1. Select Service from the Main menu, and press the [SELECT/HOLD] button.
Select Check from the Service menu, and press the [SELECT/HOLD] button.
Select Diagnosis from the Check menu, and press the [SELECT/HOLD] button.
Select Self check with the F1 or F2 button, and press the [SELECT/HOLD]
button.
Diagnosis Self check Remote controller check
Service menu: MENU Cursor
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
2. Select “Self check” from the Diagnosis menu, and press the [SELECT/HOLD]
button to view the Self check screen.
With the F1 or F2 button, enter the M-NET address, and press the [SELECT/HOLD]
button.
Self check M-NET address
Check code, unit number, attribute, and indoor unit demand signal ON/OFF
status at the contact will appear. “-” will appear if no error history is
available.
Self check M-NET address
Error Contact Off
Grp. IC
Return: RETURN
Reset
Select: SELECT Address
When there is no error history
Self check M-NET address
Error —-
– Grp. —
Contact Off
Return: RETURN
Reset
3. Resetting the error history
Press the F4 button (Reset) on the screen that shows the error history. A
confirmation screen will appear asking if you want to delete the error
history.
Press the F4 button (OK) to delete the error history. If deletion fails,
“Request rejected” will appear, and “Unit not exist” will appear if indoor
units that are correspond to the entered address are not found.
Self check M-NET address
Delete error history?
Cancel OK
Self check M-NET address
Error history deleted Return: RETURN
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11-7-2. PAR-SL101A-E
B
3 5
1. Press the
button 1 to stop the air conditioner.
is on), press the
button 3
A
to disable it ( is off).
2. Press the A
button 2 for 5 seconds.
3. Press the button 5 to select the refrigerant address (M-NET address) B of
the indoor
4. Press the
button 4.
1
f
indoor unit and the number of blinks of the OPERATION
INDICATOR lamp.
5. Press the
button 1.
A and the refrigerant address (M-NET address) B
2
check is completed.
4
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11-8. REMOTE CONTROLLER CHECK
If operations cannot be completed with the remote controller, diagnose the
remote controller with this function.
1. Select “Service” from the Main menu, and press the [SELECT/HOLD] button.
Select “Check” from the Service menu, and press the [SELECT/HOLD] button.
Select “Diagnosis” from the Check menu, and press the [SELECT/HOLD] button.
Select “Remote controller check” with the F1 or F2 button, and press the
[SELECT/HOLD] button.
Diagnosis
Self check Remote controller check
Service menu: MENU Cursor
F1 F2 F3 F4
MENU
RETURN
SELECT HOLD
ON OFF
2. Select “Remote controller check” from the Diagnosis menu, and press the
[SELECT/HOLD] button to start the remote controller check and see the check
results.
To cancel the remote controller check and exit the “Remote controller check”
menu screen, press the [MENU] or the [RETURN] button.
The remote controller will not reboot itself.
No problems are found with the remote controller. Check other parts
for problems.
E3, 6832: There is noise on the transmission line, or the indoor unit or
another
remote controller is faulty. Check the transmission line and the other
remote controllers.
NG (ALL0, ALL1): Send-receive circuit fault. The remote controller needs
replac-
ing.
ERC: The number of data errors is the discrepancy between the number of bits
in the data transmitted from the remote controller and that of the data
that was actually transmitted over the transmission line. If data errors are
found, check the transmission line for external noise interference.
If the [SELECT/HOLD] button is pressed after the remote controller check
results are displayed, remote controller check will end, and the remote
controller will automatically reboot itself.
Check the remote controller display and see if anything is displayed
(including lines). Nothing will appear on the remote controller display if the
correct voltage (8.512 VDC) is not supplied to the remote controller. If this
is the case, check the remote controller wiring and indoor units.
