• Outdoor controller board (C.B.) has been changed. (S/W version up)
1. DRAIN HOSE HEATER (option: PAC-SE60RA-E) is connectable.
2. The starting temperature of FLASH INJECTION is settable.
PUHZ-HRP 71VHA
PUHZ-HRP100VHA
• Pressure sensor (63HS) has been added.
• Compressor (MC) has been changed.
ANB33FJCMT
• Thermistor (Discharge / TH4) has been changed.
• Fan motors (MF1,2) have been changed.
• Fan grilles have been changed.
• Electrical parts have been changed.
Controller circuit board (C.B.), Power circuit board (P.B.),
Noise fi lter circuit board (N.F.) and Active fi lter module (ACTM) (including P.B.)
Before obtaining access to terminal, all supply circuits must be disconnected.
Preparation before the repair service.
• Prepare the proper tools.
• Prepare the proper protectors.
• Provide adequate ventilation.
• After stopping the operation of the air conditioner, turn off the power-supply breaker.
• Discharge the condenser before the work involving the electric parts.
Precautions during the repair service.
• Do not perform the work involving the electric parts with wet hands.
• Do not pour water into the electric parts.
• Do not touch the refrigerant.
• Do not touch the hot or cold areas in the refrigerating cycle.
• When the repair or the inspection of the circuit needs to be done without turning off the power,
exercise great caution not to touch the live parts.
3-2. CAUTIONS RELATED TO NEW REFRIGERANT
Cautions for units utilizing refrigerant R410A
Use new refrigerant pipes.
In case of using the existing pipes for R22, be careful with
the followings.
· Be sure to perform replacement operation before test run.
· Change flare nut to the one provided with this product.
Use a newly flared pipe.
· Avoid using thin pipes.
Make sure that the inside and outside of refrigerant piping is clean and it has no contamination
such as sulfur hazardous for use, oxides, dirt,
shaving particles, etc.
In addition, use pipes with specified thickness.
Contamination inside refrigerant piping can cause deterioration of refrigerant oil etc.
Store the piping to be used indoors during
installation, and both ends of the piping sealed
until just before brazing. (Leave elbow joints, etc.
in their packaging.)
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Use ester oil, ether oil or alkylbenzene oil (small
amount) as the refrigerant oil applied to flares
and flange connections.
If large amount of mineral oil enters, that can cause deterioration of refrigerant oil etc.
Do not use refrigerant other than R410A.
If other refrigerant (R22 etc.) is used, chlorine in refrigerant 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.
Gauge manifold
Charge hose
Gas leak detector
Torque wrench
Handle tools with care.
If dirt, dust or moisture enters into refrigerant cycle, that can
cause deterioration of refrigerant oil or malfunction of compressor.
Do not use a charging cylinder.
If a charging cylinder is used, the composition of refrigerant will change and the efficiency will be lowered.
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.
3
Ventilate the room if refrigerant leaks during
operation. If refrigerant comes into contact with
a flame, poisonous gases will be released.
Page 4
[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 syphon type.
· Charging should be performed with the cylinder of syphon stood vertically. (Refrigerant is charged from liquid phase.)
Unit
Gravimeter
[3] Service tools
Use the below service tools as exclusive tools for R410A refrigerant.
No.
Gauge manifold
1
Charge hose
2
Electronic scale
3
Gas leak detector· Use the detector for R134a, R407C or R410A.
4
Adaptor for reverse flow check· Attach on vacuum pump.
5
Refrigerant charge base
6
Refrigerant cylinder
7
Refrigerant recovery equipment
8
Tool name
Specifications
· Only for R410A
· Use the existing fitting
· Use high-tension side pressure of 5.3 MPa·G or over.
· Only for R410A
· Use pressure performance of 5.09 MPa·G or over.
· Only for R410A · Top of cylinder (Pink)
· Cylinder with syphon
specifications
—
—
—
. (UNF1/2)
[4] Refrigerant leakage detection function
This air conditioner can detect refrigerant leakage which may happen during a long period of use. In order to enable the
leakage detection, settings are required to let the unit memorize the initial conditions (initial learning).
Refer to 14-3. INITIAL SETTINGS FOR REFRIGERANT LEAKAGE DETECTION FUNCTION.
4
Page 5
3-3. PRECAUTIONS WHEN REUSING EXISTING R22 REFRIGERANT PIPES
(1) Flowchart
Measure the existing pipe thickness and check for damage.
The existing pipe thickness meets specifications and the pipes are not damaged.
Check if existing air conditioner can operate.
Existing air conditioner can
operate.
Perform cooling operation
for about 30 minutes and
then do a pump down work.
Disconnect existing air conditioner from piping.
Existing pipes can be reused.
Existing air conditioner
cannot operate.
Use a refrigerant recovery
equipment to recover the
refrigerant.
In case existing pipes were used
+
for gas or oil heat pump system,
be sure to clean the pipes.
The existing pipe thickness does not meet
specifications or the pipes are damaged.
Existing pipes cannot be
reused. Use new pipes.
In case the unit is HRP·HA2R1
Connect a new air conditioner.
In case the unit is HRP·HA(2)
Connect a new air conditioner.
Perform replacement operation.
·When performing replacement operation, make sure that DIP SW8-2 on outdoor unit controller board is
set to ON.
+Chemical compounds containing chlorine left in existing pipes are collected by replace filter.
●The air conditioner automatically performs cooling operation through replace filter for about 2 hours.
Connecting a new air conditioner
Flaring work should be done so that flare meets the dimension for R410A.
Use flare nut provided with indoor and outdoor unit.
When using gas piping of :19.05mm for HRP100, 125.
Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.
This is to keep the pressure on pipes within permissible range.
● Use different diameter joint or adjust the piping size by brazing.
When using pipes larger than specified size for HRP71.
Make sure that DIP SW8-1 on outdoor unit controller board is set to ON.
This is to prevent oil flow ratio from lowering due to the decrease in flowing refrigerant.
● Use different diameter joint or adjust the piping size by brazing.
When existing pipes are specified size.
The pipes can be reused referring to TECHNICAL DATA BOOK (OCS11).
● Use different diameter joint or adjust the piping size by brazing.
* When using existing pipes for HRP71, 100, 125HA(2).
Make sure that DIP SW8-2 on outdoor unit controller board is set to ON and perform
replacement operation.
+ Chemical compounds containing chlorine left in existing pipes are collected by replace filter.
● The air conditioner automatically performs cooling operation through replace filter for about 2 hours.
HRP·HA(2)HRP·HA2R1
5
Page 6
(2) Cautions for refrigerant piping work
New refrigerant R410A is adopted for replacement inverter series. Although the refrigerant piping work for R410A is same
as for R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working
pressure of R410A is 1.6 time higher than that of R22, their sizes of flared sections and flare nuts are different.
1 Thickness of pipes
Because the working pressure of R410A is higher compared to R22, be sure to use refrigerant piping with thickness
shown below. (Never use pipes of 0.7 mm or below.)
Diagram below: Piping diameter and thickness
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
(mm)
Thickness
R410AR22
0.8
0.8
0.8
1.0
—
(mm)
0.8
0.8
0.8
1.0
1.0
2 Dimensions of flare cutting and flare nut
The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that,
R410A is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants. Therefore, to enhance airtightness and intensity, flare cutting dimension of copper pipe for R410A have been
specified separately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R410A
also has partly been changed to increase intensity as shown below. Set copper pipe correctly referring to copper pipe
flaring dimensions for R410A below. For 1/2 and 5/8 inch, the dimension B changes.
Use torque wrench corresponding to each dimension.
Dimension A
Dimension B
Flare cutting dimensions
Nominal
dimensions(inch)
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
+0
Dimension A
R410AR22
9.1
13.2
16.6
19.7
—
( )
-0.4
9.0
13.0
16.2
19.4
23.3
Flare nut dimensions
(mm)
dimensions(inch)
Nominal
1/4
3/8
1/2
5/8
3/4
Outside
diameter
6.35
9.52
12.70
15.88
19.05
Dimension B
R410A
17.0
22.0
26.0
29.0
+
-
3 Tools for R410A (The following table shows whether conventional tools can be used or not.)
Tools and materialsUseR410A toolsCan R22 tools be used?
Gauge manifold
Bender
Pipe cutter
Welder and nitrogen gas cylinder
Refrigerant charging scale
Vacuum gauge or thermistor vacuum gauge and
vacuum valve
Charging cylinder
: Prepare a new tool. (Use the new tool as the tool exclusive for R410A.)
: Tools for other refrigerants can be used under certain conditions.
: Tools for other refrigerants can be used.
Air purge, refrigerant charge
and operation check
Gas leak check
Refrigerant recovery
Refrigerant charge
Apply to flared section
Prevent compressor malfunction
when charging refrigerant by
spraying liquid refrigerant
Prevent gas from blowing out
when detaching charge hose
Vacuum drying and air
purge
Flaring work of piping
Bend the pipes
Cut the pipes
Weld the pipes
Charge refrigerant
Check the degree of vacuum. (Vacuum
valve prevents back flow of oil and refrigerant to thermistor vacuum gauge)
Refrigerant charge
Tool exclusive for R410A
Tool exclusive for R410A
Tool for HFC refrigerant
Tool exclusive for R410A
Tool exclusive for R410A
Ester oil, ether oil and alkylbenzene oil (minimum amount)
Tool exclusive for R410A
Tool exclusive for R410A
Tools for other refrigerants can
be used if equipped with adopter for reverse flow check
Tools for other refrigerants
can be used by adjusting
flaring dimension
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants can be used
Tools for other refrigerants
can be used
Industry-first flash injection circuit is equipped, which enables to
keep the equal capacity with the rating even when outside temperature is -15:.
HIGH SPEED HEATING START UP
The performance of heating start up is improved. Compared to
RP type, Zubadan reduced the time for heating start up by about
half. After starting operation, the airflow temperature goes up to
45: quickly in 10 minutes. With industry-first shorter and less
frequent defrost, defrosting time is cut down by 15% compared
to RP type and heating operation can continuously run for maximum 150 minutes.
WIDE HEATING RANGE
The heating range is expanded to -25: compared to RP type
which is up to -20
:.
(kW)
Performance
about
15
10
Heating capacity
0
(kW)
Heating capacity(Peak)
+1 Condition
Room temp. 20(D.B.) Outdoor temp. 2(D.B.)/1(W.B.) : Unit HRP100, Hi notch
30%UP
-25-20-15-10-50
Outdoor W.B. temp.
HRP100
Outlet air temp.45
15
13kW
(Outlet air temp. 45)
10
0
0
About 10min.
5101520
+1
About 50% CUT
Elapsed time(min.)
HRP125
RP125
RP100
RP71
When stabled,
hot air of 50
It doesn’t reach 50
when outside air temp.
is too low,
Stable
About 19 min.
RP type:
Outlet air temp. 45
HRP100
HRP71
(Indoor PKA type)
Expanded
-
Up to -25
11~
-20
RP type
-
25
-25-20 -15-10-50
HRP type
Outdoor wet-bulb temperature
CHARGELESS SYSTEM
PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT.
Max.30m (PUHZ-HRP71/100/125)
The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver always control the optimal refrigerant level
regardless of the length (30 m max. and 5 m min.) of piping. The additional refrigerant charging work during installation
often causes problems. It is completely eliminated by chargelss system. This unique system improves the quality and reliability of the work done. It also helps to speed up the installation time.
REFRIGERANT LEAKAGE DETECTION FUNCTION
PUHZ-HRP·HA(2) can detect refrigerant leakage which may happen during a long period of use.
7
Page 8
5
SPECIFICATIONS
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Max. current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan Fan(drive) % No.Fan motor output
Airflow
Defrost method
OUTDOOR UNIT
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
*
/min(CFM
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
mm(in.)
mm(in.)
mm(in.)
kg(lbs)
kg(lbs)
mm(in.)
mm(in.)
kW
W
kW
dB
dB
PUHZ-HRP71/100VHA
Single 50Hz, 230V
A
Linear Expansion Valve
ANB33FJCMT ANB33FJEMT
0.086+0.086 0.074+0.074
)
52
53
330+30(13+1-3/16)
L
28
Munsell 3Y 7.8/1.1
Hermetic
2.5
Inverter
HP switch
LP switch
Discharge thermo
—
Plate fin coil
Propeller fan % 2
100(3,530)
Reverse cycle
950(37-3/8)
1,350(53-1/8)
120(265)
R410A
5.5(12.1)
1.40(FV50S)
9.52(3/8)
15.88(5/8)
Flared
Flared
Max. 30m
Max. 75m
PUHZ-HRP71/100VHA2
PUHZ-HRP71/100VHA2R1
Cooling
HeatingCoolingHeating
51
52
Service Ref.
Mode
Power supply (phase, cycle, voltage)
Max. current
External finish
Refrigerant control
Compressor
Model
Motor output
Starter type
Protection devices
Crankcase heater
Heat exchanger
Fan Fan(drive) % No.Fan motor output
Airflow
Defrost method
OUTDOOR UNIT
Noise level
Dimensions
Weight
Refrigerant
Charge
Oil (Model)
Pipe size O.D.
Connection method
Between the indoor &
outdoor unit
REFRIGERANT PIPING
/min(CFM
*
Cooling
Heating
W
D
H
Liquid
Gas
Indoor side
Outdoor side
Height difference
Piping length
Terminal Block
Connector
Connector
Connector
Switch
Switch
Switch
LED
LED
LED
LED
LED
>
NAME
<
M-NET connection>
<
Transmission>
<
Power Supply>
<
M-NET communication>
<
Status of communication>
<
Address setting : 1s digit>
<
Address setting : 10s digit>
<
Power Supply : DC5V>
<
Connection to Outdoor Unit>
<
Transmission : Sending>
<
Transmission : Receiving>
<
Power Supply : DC12V>
SW5-6 +2
ON
OFF
123456
ON
OFF
123456
+3 Setting of the starting ambient temp. of the flash injection.
The black square (■) indicates a switch position.
Ambient temp.
3°C or less
(lnitial setting)
SW9-3,4 +4
ON
OFF
1234
Ambient temp.
0°C or less
SW9-3,4 +4
ON
OFF
1234
+4. SW9-1 to 2 : Function Switch
Ambient temp.
-3°C or less
19
SW9-3,4 +4
ON
OFF
1234
Ambient temp.
-6°C or less
SW9-3,4 +4
ON
OFF
1234
Page 20
9
WIRING SPECIFICATIONS
9-1. FIELD ELECTRICAL WIRING (power wiring specifications)
Outdoor unit model
Outdoor unit power supply
Outdoor unit input capacity*1
Main switch (Breaker)
)
Outdoor unit power supply
2
. %
Indoor unit-Outdoor unit
ing
Indoor unit-Outdoor unit ear
Wir
Wire No
Remote controller-Indoor unit
size (mm
Outdoor unit L-N (single)
Outdoor unit L1-N, L2-N, L3-N (3 phase)
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
Circuit rating
Remote controller-Indoor unit
*1.
A breaker with at least 3 mm contact separation in each poles shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductor of the supply.
*2. Refer to 9-3.
*3. The 10 m wire is attached in the remote controller accessory.
*4. The figures are NOT always against the ground.
S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.
th*2
*2
*3
*4
*4
*4
*4
Caution:
Be sure to install N-Line. Without N-Line, it could cause damage to the unit.
Notes: 1. Wiring size must comply with the applicable local and national code..
2. Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.
(Design 60245 IEC 57)
3. Use an earth wire which is longer than other cables so that it wil not become disconnected when tension is applied.
HRP71V, HRP100VHA
~/N (single), 50 Hz,
230 V
32 A
3 % Min. 4
3)
% 1.5 (Polar
1 % Min. 1.5
2 %)
0.3 (Non-polar
AC 230 V
AC 230 V
DC 24 V
DC 12 V
HRP100VHA2(R1)
~/N (single), 50 Hz,
230 V
40 A
3 % Min. 6
3 % 1.5 (Polar)
1 % Min. 1.5
2 % 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
HRP100, 125Y
3N ~ (3phase), 50 Hz,
400 V
16 A
5 % Min. 1.5
3 % 1.5 (Polar)
1 % Min. 1.5
2 % 0.3 (Non-polar)
AC 230 V
AC 230 V
DC 24 V
DC 12 V
Power supply
Isolator
S1
A-Control
Outdoor Unit
S2
S3
Warning:
In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation
between power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch
the S1, S2, S3 terminals when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.
Turn on the main power when the ambient temperature is -20°C or higher.
In below -20°C condition, it needs at least 4hr standby to operate in order to warm the electrical parts.
3 poles isolator
S1
S2
S3
A-Control
Indoor Unit
1:1 system Electrical wiringSynchronized twin system Electrical wiring
• Synchronized twin
Indoor
unit
1
2
S1
S2
S3
Unit
power
supply
Earth leakage breaker
Wiring circuit breaker or
isolating switch
Outdoor
unit
L
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
Indoor
unit
S1
S2
S3
1
Remote
controller
2
Unit
power
supply
Earth leakage breaker
Wiring circuit breaker or
isolating switch
Outdoor
unit
L
N
Indoor/outdoor
unit connection
cable
S1
S2
S3
Indoor
unit
S1
S2
S3
1
Remote
controller
2
20
Page 21
9-2. SEPARATE INDOOR UNIT/ OUTDOOR UNIT POWER SUPPLIES
The following connection patterns are available.
The outdoor unit power supply patterns vary on models.
1:1 System
<For models without heater>
* The optional indoor power supply terminal kit is required.
L
N
S1
S2
S3
L
N
S1
S2
S3
1
2
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
Simultaneous twin system
<For models without heater>
* The optional indoor power supply terminal kits are required.
L
N
S1
S2
S3
1
2
L
N
S1
S2
S3
1
2
L
N
S1
S2
S3
* Affix a label B that is included with the manuals near each wiring diagram for the indoor and outdoor units.
If the indoor and outdoor units have separate power supplies, refer to the table
below. If the optional indoor power supply terminal kit is used, change the indoor
unit electrical box wiring referring to the figure in the right and the DIP switch
settings of the outdoor unit control board.
Indoor unit specifications
Indoor power supply terminal kit (option)
Indoor unit electrical box connector connection change
Label affixed near each wiring diagram
for the indoor and outdoor units
Outdoor unit DIP switch settings (when
using separate indoor unit/outdoor unit
power supplies only)
ON
OFF
Required
Required
Required
3
12(SW8)
Electric heater
(For models with
heater)
L
N
S1
S2
S3
Indoor unit power supplied from outdoor unit
(when shipped from factory)
Connectors (
BLUE
BLUE
YELLOW
YELLOW
CND
Set the SW8-3 to ON.
* There are three types of labels (labels A, B, and C). Affix the appropriate labels to
the units according to the wiring method.
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Initial setting:
for indoor unit power
supplied from outdoor unit)
ORANGE
CND
Indoor unit
control board
Indoor unit power supply
Outdoor unit power supply
Earth leakage breaker
Wiring circuit breaker or isolating switch
Outdoor unit
Indoor unit/outdoor unit connecting cords
Remote controller
Indoor unit
Option
Indoor unit power supply
Indoor unit earth
If the indoor and
outdoor units have
separate power
supplies, change the
connections of the
connectors as shown
in the following
figure.
Electric heater
(For models with
heater)
L
N
S1
S2
S3
Separate indoor unit/outdoor unit power
supplies
YELLOW
BLUE
BLUE
YELLOW
Connectors
CND
Indoor unit
control board
ORANGE
CND
Indoor unit model
Indoor unit power supply
Indoor unit input capacity
Main switch (Breaker)
Indoor unit power supply
Indoor unit power supply earth
)
2
Indoor unit-Outdoor unit
(mm
Wiring
Indoor unit-Outdoor unit earth
Wire No. % size
Remote controller-Indoor unit
Indoor unit L-N*4
Indoor unit-Outdoor unit S1-S2
Indoor unit-Outdoor unit S2-S3
rating
Circuit
Remote controller-Indoor unit
*1
*2
*3
*4
*4
*4
RP35~125
~/N (single), 50 Hz, 230 V
16 A
2 % Min. 1.5
1 % Min. 1.5
2 % Min. 0.3
–
2 % 0.3 (Non-polar)
AC 230 V
–
DC24 V
DC12 V
*1. A breaker with at least 3 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).
The breaker shall be provided to ensure disconnection of all active phase conductor of the supply.
*2. Max. 120 m
*3.The 10 m wire is attached in the remote controller accessory. Max. 500 m
*4.The figures are NOT always against the ground.
Notes: 1. Wiring size must comply with the applicable local and national code.
2. Power supply cables and indoor unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.
(Design 60245 IEC 57)
3. Install an earth longer than other cables.
21
Page 22
9-3. INDOOR – OUTDOOR CONNECTING CABLE
The cable shall not be lighter than design 60245 IEC or 60227 IEC.
Wire No. % Size ($)
Outdoor power supply
Max. 45m
Max. 50m
Max. 80m
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
+ The max. cable length may vary depending on the condition of installation, humidity or materials, etc.
Indoor/Outdoor separate
power supply
Indoor unit-Outdoor unit
Indoor unit-Outdoor unit earth
+ The optional indoor power supply terminal kit is necessary.
Be sure to connect the indoor-outdoor connecting cables directly to the units (no intermediate connections).
Intermediate connections can lead to communication errors if water enters the cables and causes insufficient
insulation to ground or a poor electrical contact at the intermediate connection point.
3 % 1.5 (polar)
1 % Min. 1.5
3 % 2.5 (polar)
1 % Min. 2.5
Wire No. % Size ($)
Max. 120m
2 % Min. 0.3
3 % 2.5 (polar) and S3 separated
1 % Min. 2.5
—
22
Page 23
9-4. M-NET WIRING METHOD
(Points to notice)
(1) Outside the unit, transmission wires should stay away from electric wires in order to prevent electromagnetic noise from
making an influence on the signal communication. Place them at intervals of more than 5 cm. Do not put them in the same
conduit tube.
(2) Terminal block (TB7) for transmission wires should never be connected to 220~240V power supply. If it is connected,
electronic parts on M-NET P.C. board may burn out.
(3) Use 2-core x 1.25mm2 shield wire (CVVS, CPEVS) for the transmission wire. Transmission signals may not be sent or
received normally if different types of transmission wires are put together in the same multi-conductor cable. Never do this
because this may cause a malfunction.
Group
remote
controller
It would be ok if M-NET wire (non-polar, 2-cores) is arranged in addition to the wiring for A-control.
(4) Ground only one of any appliances through M-NET transmission wire (shield wire). Communication error may occur due to
the influence of electromagnetic noise.
“Ed” error will appear on the LED display of outdoor unit.
“0403” error will appear on the central-control remote controller.
M-NET transmission wire
Power
supply
unit for
transmission
wire
A-control
remote
controller
Bad example (Multi spot grounding of shield wire)
Central
remote
controller
Power
supply
appliance
Refrigerant
address 00
M-NET
address 01
M-NET type
outdoor unit
A-control
remote
controller
M-NET type
outdoor unit
Refrigerant
address 00
M-NET
address 02
M-NET type
outdoor unit
Refrigerant
address 00
M-NET
address 03
A-control
remote
controller
Good example 1 (Single spot grounding of shield wire)
Central
remote
controller
M-NET transmission wire
Good example 2 (Single spot grounding of shield wire)
Central
remote
controller
M-NET transmission wire
If there are more than 2 grounding spots on the shield wire, noise may enter into the shield wire because the ground wire
and shield wire form one circuit and the electric potential difference occurs due to the impedance difference among ground-
ing spots. In case of single spot grounding, noise does not enter into the shield wire because the ground wire and shield
wire do not form one circuit.
To avoid communication errors caused by noise, make sure to observe the single spot grounding method described in the
installation manual.
Power
supply
appliance
Power
supply
appliance
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
M-NET type
outdoor unit
23
Page 24
M-NET wiring
2
(1) Use 2-core × 1.25mm
shield wire for electric wires.
(Excluding the case connecting to system controller.)
(2) Connect the wire to the M-NET terminal block. Connect one core of the
transmission wire (non-polar) to A(M1) terminal and the other to B(M2). Peel the
shield wire, twist the shield part to a string and connect it to S terminal.
(3) In the system which several outdoor units are being connected, the terminal
(A(M1), B(M2), S) on M-NET terminal block should be individually wired to the other
M-NET
terminal
block
ABS
Transmission
wire
Ground
wire
Shield
part
outdoor unit’s terminal, i.e. A(M1) to A(M1), B(M2) to B(M2) and S to S. In this case, choose one of those outdoor units
and drive a screw to fix an ground wire on the plate as shown on the right figure.
9-4-1. M-NET address setting
In A-control models, M-NET address and refrigerant address should be set only for the outdoor unit. Similar to CITY MULTI
system, there is no need to set the address of outdoor unit and remote controller. To construct a central control system, the
setting of M-NET address should be conducted only upon the outdoor unit. The setting range should be 1 to 50 (the same as
that of the indoor unit in CITY MULTI system), and the address number should be consecutively set in a same group.
Address number can be set by using rotary switches
(SW11 for ones digit and SW12 for tens digit), which
is located on the M-NET board of outdoor unit.
(Initial setting: all addresses are set to “0”.)
<Setting example>
M-NET Address No.
SW11
Switch
setting
ones
digit
SW12
tens
digit
12
3
3
4
2
1
0
2
1
0
4
2
5
5
1
6
6
0
7
7
9
9
8
8
3
3
4
4
2
5
5
1
6
6
0
7
7
9
9
8
8
50
3
4
2
5
1
6
0
7
9
8
~
3
4
2
5
1
6
0
7
9
8
9-4-2. Refrigerant address setting
In case of multiple grouping system (multiple refrigerant circuits in one group), indoor units should be connected by remote
controller wiring (TB5) and the refrigerant address needs to be set. Leave the refrigerant addresses to “00” if the group setting is not conducted. Set the refrigerant address by using DIP SW1-3 to -6 on the outdoor controller board. [Initial setting: all
switches are OFF. (All refrigerant addresses are “00”.)]
Refrigerant
address
ON
OFF
1
ON
OFF
1
ON
OFF
1
3
4
5
2
6
0
ON
OFF
1
3
4
5
2
6
8
ON
OFF
1
3
4
5
2
6
1
ON
OFF
1
3
4
5
2
6
9
ON
OFF
1
3
4
5
2
6
2
ON
OFF
1
3
4
5
2
6
10
ON
OFF
1
3
4
5
2
6
3
ON
OFF
1
3
4
5
2
6
11
ON
OFF
1
3
4
5
2
6
4
ON
OFF
1
3
4
5
2
6
12
ON
OFF
1
3
4
5
2
6
5
ON
OFF
1
3
4
5
2
6
13
ON
OFF
1
3
4
2
6
3
4
2
14
3
5
5
4
5
2
6
OFF
6
6
7
ON
1
3
4
5
2
6
15
9-4-3. Regulations in address settings
In case of multiple grouping system, M-NET and refrigerant address settings should be done as explained in the above section. Set the lowest number in the group for the outdoor unit whose refrigerant address is “00” as its M-NET address.
Group AGroup BGroup C
System
controller
Power
supply
unit for
transmission
wire
Refrigerant
address 00
M-NET
address 01
A-control
remote
controller
Refrigerant
address 00
M-NET
address 02
A-control
remote
controller
TB5
w Refrigerant addresses can be overlapped if they are in the different group.
Group AGroup B
System
controller
Power
supply
unit for
transmission
wire
Refrigerant
address 00
M-NET
address 01
A-control
remote
controller
Refrigerant
address 01
M-NET
address 02
TB5
Refrigerant
address 01
M-NET
address 03
Refrigerant
address 00
M-NET
address 04
A-control
remote
controller
Refrigerant
address 00
M-NET
address 04
A-control
remote
controller
Refrigerant
address 01
M-NET
address 03
Refrigerant
address 02
M-NET
address 05
w In group B, M-NET address of the outdoor unit whose refrigerant address is “00” is not set to the minimum in the group. As
“3” is right for this situation, the setting is wrong. Taking group A as a good sample, set the minimum M-NET address in the
group for the outdoor unit whose refrigerant address is “00”.
Refrigerant flow in cooling
Refrigerant flow in heating
Thermistor TH7
(Outdoor)
Thermistor
TH6
(Outdoor
2-phase pipe)
Thermistor TH3
(Outdoor pipe)
Distributor
Thermistor TH33
(Outdoor pipe)
25
Page 26
10-1. Refrigerant recovering (pump down)
Perform the following procedures to recover the refrigerant when moving the indoor unit or the outdoor unit.
1 Turn on the power supply (circuit breaker).
w When power is supplied, make sure that “CENTRALLY CONTROLLED” is not displayed on the remote controller. If
“CENTRALLY CONTROLLED” is displayed, the refrigerant recovering (pump down) cannot be completed normally.
2 After the liquid stop valve is closed, set the SWP switch on the control board of the outdoor unit to ON. The compressor
(outdoor unit) and fans (indoor and outdoor units) start operating and refrigerant recovering operation begins. LED1 and
LED2 on the control board of the outdoor unit are lit.
Set the SWP switch (push-button type) to ON in order to perform refrigerant recovering operation only when the unit is
w
stopped. However, refrigerant recovering operation cannot be performed until compressor stops even if the unit is stopped.
Wait 3 minutes until compressor stops and set the SWP switch to ON again.
3 Because the unit automatically stops in about 2 to 3 minutes after the refrigerant recovering operation (LED1 is not lit and
LED2 is lit), be sure to quickly close the gas stop valve.
w In case the outdoor unit is stopped when LED1 is lit and LED2 is not lit, open the liquid stop valve completely, and then
repeat step 2 3 minutes later.
w If the refrigerant collecting operation has been completed normally (LED1 is not lit and LED2 is lit), the unit will remain
stopped until the power supply is turned off.
4 Turn off the power supply (circuit breaker).
10-2. Unit replacement operation (except for PUHZ-HRP·HA2R1)
When reusing the existing pipes that carried R22 refrigerant for the HRP71, HRP100 and HRP125 models, replacement
operation must be performed before performing a test run.
1 If new pipes are used, these procedures are not necessary.
2 During replacement operation, “C5” is displayed on “A-Control Service Tool (PAC-SK52ST)”.
Replacement operation procedures
1 Turn on the power supply.
2 Set DIP switch SW8-2 on the control board of the outdoor unit to ON to start replacement operation.
• The replacement operation is performed using the cooling system. Cool air will flow from the indoor unit during the replacement operation.
• During the replacement operation,
control board of the outdoor unit blink together.
3 Replacement operation requires at least 2 hours to complete.
• After setting switch SW8-2 to ON, the unit automatically stops after 2 hours.
• Replacement operation can be performed repeatedly by setting switch SW8-2 from OFF to ON. Make sure to perform
the operation more than 2 hours. (If the operation is performed less than 2 hours, the existing pipes cannot be cleaned
enough and the unit may be damaged.)
• If replacement operation is performed over 2 hours, this action is recorded into nonvolatile memory of control board.
4 Set switch SW8-2 to OFF. (Replacement operation is completed.)
w The unit can be operated normally by remote controller even if SW8-2 remains ON.
w If the indoor temperature is less than 15:, the compressor will operate intermittently but the unit is not faulty.
TEST RUN
is displayed on the remote controller and LED1 (green) and LED2 (red) on the
10-3. Start and finish of test run
• Operation from the indoor unit
Execute the test run using the installation manual for the indoor unit.
• Operation from the outdoor unit
By using the DIP switch SW4 on the control board of outdoor unit, test run can be started and finished, and its operation
mode (cooling/heating) can be set up.
1 Set the operation mode (cooling/heating) using SW4-2.
2 Turn on SW4-1 to start test run with the operation mode set by SW4-2.
3 Turn off SW4-1 to finish the test run.
• There may be a faint knocking sound around the machine room after power is supplied, but this is
no problem with product because the linear expansion pipe is just moving to adjust opening pulse.
• There may be a knocking sound around the machine room for several seconds after compressor
starts operating, but this is no problem with product because the check valve itself generates the
sound because pressure difference is small in the refrigerant circuit.
<SW4>
ON
OFF
12
Stop Operation
Cooling Heating
Note:
The operation mode cannot be changed by SW4-2 during test run. (To change test run mode, stop the unit by SW4-1,
change the operation mode and restart the test run by SW4-1.)
26
Page 27
11TROUBLESHOOTING
11-1. TROUBLESHOOTING
<Error code display by self-diagnosis and actions to be taken for service (summary)>
Present and past error codes are logged and displayed on the wired remote controller and control board of outdoor unit.
Actions to be taken for service, which depends on whether or not the trouble is reoccurring at service, are summarized in the
table below. Check the contents below before investigating details.
Unit conditions at service
The trouble is reoccurring.
The trouble is not reoccurring.
Error code
Displayed
Not displayed
Logged
Not logged
Actions to be taken for service (summary)
Judge what is wrong and take a corrective action according
to “11-4. Self-diagnosis action table”.
Conduct troubleshooting and ascertain the cause of the
trouble according to “11-5. Troubleshooting by inferior
phenomena”.
Consider the temporary defects such as the work of
protection devices in the refrigerant circuit including
compressor, poor connection of wiring, noise and etc.
Re-check the symptom, and check the installation
environment, refrigerant amount, weather when the
trouble occurred, matters related to wiring and etc.
Reset error code logs and restart the unit after finishing
service.
There is no abnormality in electrical component,
controller board, remote controller and etc.
Re-check the abnormal symptom.
Conduct trouble shooting and ascertain the cause of the
trouble
according to “11-5. Troubleshooting
by inferior
phenomena”.
Continue to operate unit for the time being if the cause
is not ascertained.
There is no abnormality concerning of parts such as
electrical component, controller board, remote controller
and etc.
11-2. CHECK POINT UNDER TEST RUN
(1) Before test run
• After installation of indoor and outdoor units, piping work and electric wiring work, re-check that there is no refrigerant leak-
age, loosened connections and incorrect polarity.
• Measure impedance between the ground and the power supply terminal block (L, N) on the outdoor unit by 500V Megger
and check that it is 1.0M" or over.
Do not use 500V Megger to indoor/outdoor connecting wire terminal block (S1, S2, S3) and remote controller terminal block
w
(1, 2). This may cause malfunction.
• Make sure that test run switch (SW4) is set to OFF before turning on power supply.
• Turn on power supply 12 hours before test run in order to protect compressor.
• For specific models which requires higher ceiling settings or power failure automatic recovery, make proper changes of set-
tings referring to the description of “Selection of Functions through Remote Controller”.
Make sure to read operation manual before test run. (Especially items to secure safety.)
27
Page 28
"TEST RUN" and the currently selected
operation mode are displayed altemately.
Displays the remaining
test run time.
[TEST] button
Operating procedures
1. Turn on the main power supply.
2. Press TEST button twice.
3. Press OPERATION SWITCH
button.
4. Press AIR DIRECTION button.
5. Check the outdoor unit fan for
correct running.
While the room temperature display on the remote
controller is “PLEASE WAIT”, the remote controller is disabled.
Wait until “PLEASE WAIT” disappears before using remote controller.
“PLEASE WAIT” appears for about 2 minutes after power
supply is turned on. +1
The TEST RUN appears on the screen.
Cooling mode:
Heating mode: Check if warm air blows. (It takes a little
while until warm air blows.)
Check for correct motion of auto-vanes.
The outdoor unit features automatic capacity control to
provide optimum fan speeds. Therefore, the fan keeps
running at a low speed to meet the current outside air
condition unless it exceeds its available maximum power.
Then, in actuality, the fan may stop or run in the reverse
direction depending on the outside air, but this does not
mean malfunction.
Check if cool air blows and water is drained.
6. Press the ON/OFF button to reset the test run in progress.
Pipe (liquid) temperature
7. Register the contact number.
• In case of test run, the OFF timer will be activated, and the test run will automatically stop after 2 hours.
• The room temperature display section shows the pipe temperature of indoor units during the test run.
• Check that all the indoor units are running properly in case of simultaneous twin operation. Malfunctions may not be displayed regardless of incorrect wiring.
w1 After turning on the power supply, the system will go into startup mode, “PLEASE WAIT” will blink on the display section
of the room temperature, and lamp (green) of the remote controller will flash.
As to INDOOR BOARD LED, LED1 will be lit up, LED2 will either be lit up in case the address is 0 or turned off in case
the address is not 0. LED3 will blink.
As to OUTDOOR BOARD LED, LED1 (green) and LED2 (red) will be lit up. (After the startup mode of the system finishes, LED2 (red) will be turned off.)
In case OUTDOOR BOARD LED is digital display, — and — will be displayed alternately every second.
• If one of the above operations doesn’t function correctly, the causes written below should be considered. Find causes from
the symptoms.
The below symptoms are under test run mode. “startup” in the table means the display status of w1 written above.
Symptoms in test run mode
Remote Controller Display
Remote controller displays “PLEASE
WAIT”, and
cannot be operated.
After power is turned on, “PLEASE WAIT”
is displayed for 3 minutes, then error code
is displayed.
OUTDOOR BOARD LED Display
< > indicates digital display.
After “startup” is displayed, only
green lights up. <00>
After “startup” is displayed,
green(once) and red(once) blink
alternately. <F1>
After “startup” is displayed,
green(once) and red(twice) blink
• After power is turned on, “PLEASE WAIT” is displayed for 2
minutes during
• Outdoor unit’s protection device connector is open.
Cause
1, L2, L3 and
alternately. <F3, F5, F9>
• Incorrect wiring between the indoor and outdoor unit (Polarity
is wrong for S1, S2, S3.)
• Remote controller transmission wire is short.
• There is no outdoor unit of address 0.
(Address is other than 0.)
• Remote controller transmission wire is open.
• After canceling function selection, operation is not possible for
about 30 seconds. (Normal)
No display appears even when remote
controller operation switch is turned on.
(Operation lamp does not light up.)
Display appears but soon disappears
even when remote controller is operated.
After “startup” is displayed,
green(twice) and red(once) blink
alternately. <EA. Eb>
After “startup” is displayed, only
green lights up. <00>
After “startup” is displayed, only
green lights up. <00>
w Press the remote controller’s CHECK button twice to perform self-diagnosis. See the table below for the contents of LCD display.
LCD
Abnormality of room temperature thermistor
P1
Abnormality of pipe temperature thermistor/Liquid
P2
Abnormality of drain sensor/ Float switch connector open
P4
Drain overflow protection is operating.
P5
Freezing/overheating protection is operating.
P6
Abnormality of pipe temperature
P8
Abnormality of pipe temperature thermistor/Cond./Eva
P9
Fb
Abnormality of indoor controller board
Contents of inferior phenomena
LCD
Malfunction outdoor unit
U1~UP
Malfunction
F3~F9
E0~E5
Remote controller transmitting error
Indoor/outdoor unit communication error
E6~EF
No error history
---No applied unit
FFFF
Forced compressor stop(due to water leakage abnormality)
PA
Contents of inferior phenomena
outdoor unit
See the table below for details of the LED display (LED 1, 2, 3) on the indoor controller board.
(microprocessor power supply)
LED1
(remote controller)
LED2
(indoor/outdoor communication)
LED3
Lits when power is supplied.
Lits when power is supplied for wired remote controller.
The indoor unit should be connected to the outdoor unit with address “0” setting.
Blinks when indoor and outdoor unit are communicating.
28
Page 29
,
ON/OFF
MODE
CHECK
TEST RUN
SET
TEST RUN
FAN
VAN E
LOUVER
RESET
CLOCK
TEMP
AUTO STOP
AUTO START
h
min
Test run [for wireless remote controller]
Measure an impedance between the power supply terminal block on
the outdoor unit and ground with a 500V Megger and check that it is
equal to or greater than 1.0M".
1 Turn on the main power to the unit.
2 Press the
(Start this operation from the status of remote controller display
turned off.)
TEST RUN
A
3 Press the
check whether cool air is blown out from the unit.
4 Press the
check whether warm air is blown out from the unit.
5 Press the
from the unit.
6 Press the
properly.
7 Press the ON/OFF button to stop the test run.
Note:
• Point the remote controller towards the indoor unit receiver
while following steps 2 to 7.
• It is not possible to run in FAN, DRY or AUTO mode.
TEST RUN
button twice continuously.
and current operation mode are displayed.
MODE
( ) button to activate
MODE
( ) button to activate
FAN
button and check whether strong air is blown out
VANE
button and check whether the auto vane operates
COOL
HEAT
mode, then
mode, then
29
Page 30
11-3. HOW TO PROCEED “SELF-DIAGNOSIS”
11-3-1. When a Problem Occurs During Operation
If a problem occurs in the air conditioner, the indoor and outdoor units will stop,
and the problem is shown in the remote controller display.
[CHECK] and the refrigerant address are displayed on the
temperature display, and the error code and unit number are
displayed alternately as shown below. (If the outdoor unit is
malfunctioning, the unit number will be “00”.)
In the case of group control, for which one remote controller controls
multiple refrigerant systems, the refrigerant address and error code of
the unit that first experienced trouble (i.e., the unit that transmitted
the error code) will be displayed.
To clear the error code, press the button.
ON/OFF
Error code (2 or 4 digits)
(Alternating Display)
Address (3 digits) or unit number (2 digits)
When using remote-/local-controller combined operation, cancel the error code after turning off remote operation. During
central control by a MELANS controller, cancel the error code by pressing the
ON/OFF
button.
11-3-2. Self-Diagnosis During Maintenance or Service
Since each unit has a function that stores error codes, the latest check code can be recalled even if it is cancelled by the remote
controller or power is turned off.
Check the error code history for each unit using the remote controller.
Switch to self-diagnosis mode.
Press the
will change as shown below.
CHECK
button twice within 3 seconds. The display content
Unit number or refrigerant address
to be diagnosed
Set the unit number or refrigerant address you want to diagnose.
Press the [TEMP] buttons ( and ) to select the desired number
or address. The number (address) changes between [01] and [50] or [00]
and
[15].
The refrigerant address will begin to blink
approximately 3 seconds after being
selected and the self-diagnosis process will begin.
Display self-diagnosis results.
<When there is error code history>
(For the definition of each error code, refer to the indoor unit's installation manual or service handbook.)
(Alternating Display)
Error code (2 or 4 digits)
<When there is no error code history><When there is no corresponding unit>
Reset the error history.
Display the error history in the diagnosis result display screen (see step
Address (3 digits) or unit number (2 digits)
).
30
Page 31
Press the
address or refrigerant address will blink.
Cancel self-diagnosis.
Self-diagnosis can be cancelled by the following 2 methods.
Press the
Press the
ON/OFF
CHECK
ON/OFF
button twice within 3 seconds. The self-diagnosis
button twice within 3 seconds. Self-diagnosis will be cancelled and the screen will return to the previous state in effect before the
button. Self-diagnosis will be cancelled and the indoor unit will stop.
start of self-diagnosis.
When the error history is reset, the display will look like the one shown below.
However, if you fail to reset the error history, the error content will be displayed
again.
11-3-3. Remote Controller Diagnosis
If the air conditioner cannot be operated from the remote controller, diagnose the remote controller as explained below.
First, check that the power-on indicator is lit.
If the correct voltage (DC12 V) is not supplied to the remote controller, the
indicator will not light.
If this occurs, check the remote controller's wiring and the indoor unit.
Power on indicator
Switch to the remote controller self-diagnosis mode.
Press the
change as shown below.
CHECK
button for 5 seconds or more. The display content will
Press the
FILTER
button to start self-diagnosis.
Remote controller self-diagnosis result
[When the remote controller is functioning correctly]
Check for other possible causes, as there is no problem with the remote
controller.
There might be noise or interference on the transmission path, or the indoor
unit or other remote controllers are defective. Check the transmission path
and other controllers.
The remote controller must be replaced with a new one.
(Error display 3)
The number of data errors is the difference between the number of bits sent
from the remote controller and the number actually transmitted through the
transmission path. If such a problem is occurring, the transmitted data is
affected by noise, etc. Check the transmission path.
approximately 30 seconds, the state in effect before the diagnosis will be restored.
CHECK
button for 5 seconds or more. Remote controller diagnosis will be cancelled, "PLEASE WAIT" and operation lamp will blink. After
31
Page 32
11-3-4. Malfunction-diagnosis method by wireless remote controller
<In case of trouble during operation>
When a malfunction occurs to air conditioner, both indoor unit and outdoor unit will stop and operation lamp blinks to inform
unusual stop.
<Malfunction-diagnosis method at maintenance service>
[Procedure]
CHECK
display
ON/OFF
button
CHECK
button
ON/OFF
MODE
CHECK
TEST RUN
SET
CHECK
FAN
VAN E
LOUVER
RESET
TEMP
AUTO STOP
AUTO START
CLOCK
h
min
Refrigerant
address
display
Temperature
button
HOUR
button
1. Press the CHECK button twice.
2. Press the temperature
buttons.
3. Point the remote controller at the
sensor on the indoor unit and
press the HOUR button.
• "CHECK" lights, and refrigerant
address "00" blinks.
• Check that the remote controller's
display has stopped before continuing.
• Select the refrigerant address of the
indoor unit for the self-diagnosis.
Note: Set refrigerant address using the
outdoor unit’s DIP switch (SW1).
(For more information, see the
outdoor unit installation manual.)
• If an air conditioner error occurs, the
indoor unit's sensor emits an intermit tent buzzer sound, the operation lamp
blinks, and the error code is output.
(It takes 3 seconds at most for error
code to appear.)
4. Point the remote controller at the
sensor on the indoor unit and
press the ON/OFF button.
• The check mode is cancelled.
32
Page 33
• Refer to the following tables for details on the check codes.
[Output pattern A]
Beeper sounds
OPERATION
INDICATOR
lamp blink
pattern
Beep
Self-check
starts.
(Start signal
received)
Beep Beep BeepBeepBeep Beep
1st2nd3
Off
Approx. 2.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.
Number of blinks/beeps in pattern indicates the check
code in the following table. (i.e., n=5 for “P5”)
rd
n
On
0.5 sec.
th
Approx. 2.5 sec.On0.5 sec.On0.5 sec.
[Output pattern B]
Beeper sounds
OPERATION
INDICATOR
lamp blink
pattern
BeepBeep Beep BeepBeep
1st2nd3
Off
Self-check
starts.
(Start signal
received)
Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.On0.5 sec.On0.5 sec.
Number of blinks/beeps in pattern indicates the check
code in the following table. (i.e., n=5 for “U2”)
PAForced compressor stop(due to water leakage abnormality)
6P6Freezing/Overheating protection operation
7EECommunication error between indoor and outdoor units
8P8Pipe temperature error
9E4, E5Remote controller signal receiving error
10
11
–
–
–
–
12FbIndoor unit control system error (memory error, etc.)
–
E0, E3
Remote controller transmission error
–E1, E2Remote controller control board error
nd
1st2
Off
Number of blinks/beeps in pattern indicates
the check code in the following table.
rd
th
n
· · · Repeated
Beep Beep
nd
1st2
Off
Approx. 2.5 sec.OnApprox. 3 sec.On0.5 sec.On0.5 sec.
Number of blinks/beeps in pattern indicates
the check code in the following table.
· · · Repeated
SymptomRemark
As for indoor
unit, refer to
indoor unit's
service manual.
[Output pattern B]
Wireless remote controller
Beeper sounds/OPERATION
INDICATOR lamp blinksCheck code
Errors detected by unit other than indoor unit (outdoor unit, etc.)
Wired remote controller
SymptomRemark
(Number of times)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
E9
UP
U3,U4
UF
U2
U1,Ud
U5
U8
U6
U7
U9,UH
–
–
Others
*1 If the beeper does not sound again after the initial
the OPERATION INDICATOR lamp does not come on,
Indoor/outdoor unit communication error
(Transmitting error) (Outdoor unit)
Compressor overcurrent interruption
Open/short of outdoor unit thermistors
Compressor overcurrent interruption (When compressor locked)
Abnormal high discharging temperature/insufficient refrigerant
Abnormal high pressure (63H operated)/Overheating
protection operation
Abnormal temperature of heatsink
Outdoor unit fan protection stop
Compressor overcurrent interruption/Abnormal of power module
Abnormality of superheat due to low discharge temperature
Abnormality such as overvoltage or voltage shortage and
abnormal synchronous signal to main circuit/Current sensor error
–
–
Other errors (Refer to the technical manual for the outdoor unit.)
2 beeps to confirm the self-check start signal was received and
there are no error records.
For details, check
the LED display
of the outdoor
controller board.
*2 If the beeper sounds 3 times continuously “beep, beep, beep (0.4 + 0.4 + 0.4 sec.)” after the initial 2 beeps to confirm
the self-check start signal was received, the specified refrigerant address is incorrect.
33
Page 34
11-4. SELF-DIAGNOSIS ACTION TABLE
<Abnormalities detected when the power is turned on>
Error Code
None—
Abnormal point and detection method
1 No voltage is supplied to termi-
nal block (TB1) of outdoor unit.
a) Power supply breaker is
turned off.
b) Contact failure or disconnec-
tion of power supply
terminal
c) Open phase (L or N phase)
2 Electric power is not charged to
power supply terminal of outdoor power circuit board.
a) Contact failure of power
supply terminal
b) Open phase on the outdoor
power circuit board
HRP71, 100VHA :
Disconnection of connector
TABT or TABS
3 Electric power is not supplied
to outdoor controller circuit
board.
a) Disconnection of connector
(CNDC)
4 Disconnection of reactor (DCL
or ACL)
5 Disconnection of outdoor noise
filter circuit board or parts failure in outdoor noise filter circuit
board
As for HRP71, 100VHA, it is
especially needed to check the
resistance RS1 on the noise
filter circuit board.
6 Defective outdoor power circuit
board
(Note 1) Refer to indoor unit section for code P and code E.
Case
HRP71, 100VHA2 :
Disconnection of connector
LI or NI
Judgment and action
1 Check following items.
a) Power supply breaker
b) Connection of power supply terminal block
(TB1)
c) Connection of power supply terminal block
(TB1)
2 Check following items.
a) Connection of power supply terminal block
(TB1)
b) Connection of terminal on outdoor power
circuit board
HRP71, 100VHA : Check connection of
HRP71, 100VHA2 :
3 Check connection of the connector (CNDC)
on the outdoor controller circuit board.
Check connection of the connector, CNDC on
the outdoor power circuit board(V)/the noise
filter(Y). Refer to 11-9.
4 Check connection of reactor. (DCL or ACL)
HRP71, 100VHA :
HRP71, 100VHA2 : Check connection of
5 a) Check connection of outdoor noise filter
circuit board.
b) Replace outdoor noise filter circuit board.
Refer to 11-9.
6 Replace outdoor power circuit board.
the connector TABT or
TABS. Refer to 11-9.
Check connection of
the connector LI or NI.
Refer to 11-9.
Check connection of “L1”
and “L2” on the active filter
module.(ACTM)
Refer to 11-9.
"DCL1" and "DCL2" on
the outdoor power circuit
board. Refer to 11-9.
F3
(5202)
F5
(5201)
63L connector open
Abnormal if 63L connector circuit is open for
3 minutes continuously after power supply.
63L: Low-pressure switch
63H connector open
Abnormal if 63H connector circuit is open for
3 minutes continuously after power supply.
63H: High-pressure switch
7 Defective outdoor controller cir-
cuit board
1 Disconnection or contact failure
of 63L connector on outdoor
controller circuit board
2 Disconnection or contact failure
of 63L
3 63L is working due to refriger-
ant leakage or defective parts.
4 Defective outdoor controller
circuit board
1 Disconnection or contact failure
of 63H connector on outdoor
controller circuit board
of connector (63H,63L) on
outdoor controller circuit board.
2 Disconnection or contact failure
of 63H, 63L
3 63H and 63L are working due
to defective parts.
4 Defective outdoor controller
board.
Case
1 Check connection of connector (63H,63L) on
outdoor controller circuit board.
Refer to 11-9.
2 Check the 63H and 63L side of connecting
wire.
3 Check continuity by tester.
Replace the parts if the parts are defective.
4 Replace outdoor controller circuit board.
EA
(6844)
Eb
(6845)
Indoor/outdoor unit connector
miswiring, excessive number of units (4
units or more)
1. Outdoor controller circuit board can
automatically check the number of
connected indoor units. Abnormal if the
number cannot be checked automatically
due to miswiring of indoor/outdoor unit
connecting wire and etc. after power is
turned on for 4 minutes.
2. Abnormal if outdoor controller circuit
board recognizes the number of
connected indoor units as “4 units or
more”.
Miswiring of indoor/outdoor unit
connecting wire (converse wiring or disconnection)
Outdoor controller circuit board can
automatically set the unit number of indoor
units.
Abnormal if the indoor unit number can
not be set within 4 minutes after power on
because of miswiring (converse wiring or
disconnection) of indoor/outdoor unit connecting wire.
1 Contact failure or miswiring of
indoor/outdoor unit connecting
wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
3 4 or more indoor units are
connected to one outdoor unit.
4 Defective transmitting receiving
circuit of outdoor controller
circuit board
5 Defective transmitting receiving
circuit of indoor controller board
6 Defective indoor power board
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor / outdoor unit
connecting wire.
1 Contact failure or miswiring of
indoor/outdoor unit connecting
wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
4 Defective transmitting receiving
circuit of outdoor controller circuit
board
5 Defective transmitting receiving
circuit of indoor controller board
6 Defective indoor power board
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor/outdoor unit
connecting wire.
1 Check disconnection or looseness or polar-
ity of indoor/outdoor unit connecting wire of
indoor and outdoor units.
2 Check diameter and length of indoor/outdoor
unit connecting wire.
Total wiring length: 80m
(including wiring connecting each indoor unit
and between indoor and outdoor unit)
Also check if the connection order of flat
cable is S1, S2, S3.
3 Check the number of indoor units that are
connected to one outdoor unit. (If EA is
detected)
4~6 Turn the power off once, and on again to
check.
Replace outdoor controller circuit board,
indoor controller board or indoor power
board if abnormality occurs again.
7
Check if refrigerant addresses (SW1-3 to
SW1-6 on outdoor controller circuit board) are
overlapping in case of group control system.
8 Check transmission path, and remove the
cause.
w The descriptions above, 1-8, are for EA, Eb
and EC.
EC
(6846)
Start-up time over
The unit cannot finish start-up process
within 4 minutes after power on.
1 Contact failure of indoor/
outdoor unit connecting wire
2 Diameter or length of indoor/
outdoor unit connecting wire is
out of specified capacity.
7 2 or more outdoor units have
refrigerant address “0” .
(In case of group control)
8 Noise has entered into power
supply or indoor/outdoor unit
connecting wire.
35
Page 36
<Abnormalities detected while unit is operating>
<Abnormalities detected while unit is operating>
Error Code
U1
(1302)
Abnormal point and detection method Judgment and action
High pressure (High-pressure switch
63H operated)
Abnormal if high-pressure switch 63H operated ( w ) during compressor operation.
w 4.15 MPa
63H: High-pressure switch
Case
1 Short cycle of indoor unit
2 Clogged filter of indoor unit
3 Decreased airflow caused by
dirt of indoor fan
4 Dirt of indoor heat exchanger
5 Locked indoor fan motor
6 Malfunction of indoor fan motor
7 Defective operation of stop
valve (Not full open)
8 Clogged or broken pipe
9 Locked outdoor fan motor
0 Malfunction of outdoor fan
motor
1 Short cycle of outdoor unit
2 Dirt of outdoor heat exchanger
3 Decreased airflow caused by
defective inspection of outside
temperature thermistor
(It detects lower temperature
than actual temperature.)
4 Disconnection or contact failure
of connector (63H) on outdoor
controller board
5 Disconnection or contact failure
of 63H connection
6 Defective outdoor controller
board
7 Defective action of linear
expansion valve
8 Malfunction of fan driving circuit
1~6 Check indoor unit and repair defect.
7 Check if stop valve is fully open.
8 Check piping and repair defect.
9~2 Check outdoor unit and repair defect.
3 Check the detected temperature of outside
temperature thermistor on LED display.
(SW2 on A-Control Service Tool : Refer to
11-10.)
4~6 Turn the power off and check F5 is
displayed when the power is turned again.
When F5 is displayed, refer to “Judgment
and action” for F5.
7 Check linear expansion valve.
Refer to 11-6.
8 Replace outdoor controller board.
U2
(1102)
U3
(5104)
High discharging temperature
(1) Abnormal if discharge temperature ther-
mistor (TH4) exceeds 125: or 110:
continuously for 5 minutes.
Abnormal if discharge temperature ther-
mistor (TH4) exceeds 110: or more
continuously for 30 seconds after 90
seconds have passed since the defrosting operation started.
Open/short circuit of discharge
temperature thermistor (TH4)
Abnormal if open (3: or less) or short
(217: or more) is detected during
compressor operation.
(Detection is inoperative for 10 minutes
of compressor starting process and for 10
minutes after and during defrosting.)
2 Check if stop valve is fully open.
34 Turn the power off and check if U3 is dis-
played when the power is turned on again.
When U3 is displayed, refer to “Judgement
and action” for U3.
5 Check linear expansion valve.
Refer to 11-6.
6 After recovering refrigerant, remove water
from entire refrigerant circuit under vacuum
more than 1 hour.
1 Check connection of connector (TH4) on the
outdoor controller circuit board.
Check breaking of the lead wire for
thermistor (TH4). Refer to 11-9.
2 Check resistance value of thermistor (TH4)
or temperature by microprocessor.
(Thermistor/TH4: Refer to 11-6.)
(SW2 on A-Control Service Tool: Refer to 11-10.)
3 Replace outdoor controller board.
36
Page 37
Error Code
U4
(TH3:5105)
(TH6:5107)
(TH7:5106)
(TH8:5110)
(TH32:5105)
(TH33:5105)
Abnormal point and detection method
Open/short of outdoor unit thermistors
(TH3, TH32, TH33, TH6, TH7, and TH8)
Abnormal if open or short is detected
during compressor operation.
Open detection of thermistors TH3, TH32,
TH33 and TH6 is inoperative for 10 seconds to 10 minutes after compressor
starting and 10 minutes after and during
defrosting.
W Check which unit has abnormality in
its thermistor by switching the mode of
SW2. (PAC-SK52ST)
(Refer to 11-10.)
W HRP100, 125Y
Heatsink thermistor(TH8) is in the power
module.
Thermistors
SymbolName
Case
1 Disconnection or contact failure
of connectors
Outdoor controller circuit board
TH3, TH32, TH33, TH7/6
TH33, TH7/6) on the outdoor controller circuit
board.
Check connection of connector (CN3) on the
outdoor power circuit board.
Check breaking of the lead wire for thermistor
(TH3, TH32, TH33, TH6,TH7,TH8).
Refer to 11-9.
2 Check resistance value of thermistor (TH3,
TH32, TH33, TH6,TH7,TH8) or check temperature by microcomputer.
(Thermistor/TH3,TH6,TH7,TH8:
Refer to 11-6.)
(SW2 on A-Control Service Tool: Refer to
11-10.)
3 Replace outdoor controller circuit board.
W Emergency operation is available in case
Judgment and action
of abnormalities of TH3, TH32, TH33, TH6
and TH7.
Refer to 11-8.
Open detectionShort detection
TH3,TH32,TH33Thermistor <Outdoor pipe>- 40 °C or below 90 °C or above
TH6Thermistor <Outdoor 2-phasepipe>- 40 °C or below 90 °C or above
TH7Thermistor <Outdoor>- 40 °C or below 90 °C or above
TH8Thermistor <Heatsink> HRP71,100VHA- 27 °C or below 102 °C or above
Abnormal if heatsink thermistor(TH8)
detects temperature indicated below.
HRP71V ·········································84:
HRP100V ·········································84:
HRP100Y ·········································95:
HRP125Y ·········································95:
Power module
Check abnormality by driving power module
in case overcurrent is detected.
(UF or UP error condition)
Too low superheat due to low discharge
temperature
Abnormal if discharge superheat is
continuously detected less than or equal
to -15: for 3 minutes even though linear
expansion valve has minimum open pulse
after compressor starts operating for 10
minutes.
1 The outdoor fan motor is
locked.
2 Failure of outdoor fan motor
3 Air flow path is clogged.
4 Rise of ambient temperature
5 Defective thermistor
6 Defective input circuit of
outdoor power circuit board
7 Failure of outdoor fan drive
circuit
1 Outdoor stop valve is closed.
2 Decrease of power supply voltage
3 Looseness, disconnection or
converse of compressor wiring
connection
4 Defective compressor
5 Defective outdoor power circuit
board
1 Disconnection or loose
connection of discharge
temperature thermistor (TH4)
2 Defective holder of discharge
temperature thermistor
3 Disconnection or loose connection
of linear expansion valve’s coil
4 Disconnection or loose
connection of linear expansion
valve’s connector
5 Defective linear expansion valve
12 Check outdoor fan.
3 Check air flow path for cooling.
4 Check if there is something which causes
temperature rise around outdoor unit.
(Upper limit of ambient temperature is 46:.)
Turn off power, and on again to check if U5 is
displayed within 30 minutes.
If U4 is displayed instead of U5, follow the
action to be taken for U4.
1 Open stop valve.
2 Check facility of power supply.
3 Correct the wiring (U•V•W phase) to
compressor. Refer to 11-9 (Outdoor power
circuit board).
4 Check compressor referring to 11-6.
5 Replace outdoor power circuit board.
12 Check the installation conditions of
discharge temperature thermistor (TH4).
3 Check the coil of linear expansion valve.
Refer to 11-7.
4 Check the connection or contact of LEV-A and
LEV-B on outdoor controller circuit board.
5 Check linear expansion valve.
Refer to 11-6.
37
Page 38
Error Code
U8
(4400)
U9
(4220)
Ud
(1504)
UE
(1302)
Abnormal point and detection method
Outdoor fan motor
Abnormal if rotational frequency of the fan
motor is not detected during DC fan motor
operation.
Fan motor rotational frequency is abnormal if;
• 100 rpm or below detected continuously
for 15 seconds at 20: or more outside
air temperature.
• 50 rpm or below or 1500 rpm or more
detected continuously for 1 minute.
Overvoltage or voltage shortage and
synchronous signal to main circuit
Abnormal if any of followings are detected
during compressor operation;
• Decrease of DC bus voltage to 310V
(HRP71, 100V only)
• Instantaneous decrease of DC bus voltage
HRP71, 100V : 200V,
HRP100, 125Y : 350V
• Increase of DC bus voltage to
HRP71, 100V : 400V
HRP100, 125Y : 760V
• Decrease of input current of outdoor unit
to 0.1A only if operation frequency is more
than or equal to 40Hz or compressor
current is more than or equal to 6A.
* Check U9 error detail (SW2 all ON).
Refer to 11-10.
Overheat protection
Abnormal if outdoor pipe thermistor (TH3),
condensing temperature T
63HS (only V/
YHA2(R1)) detects 70: or more during
compressor operation.
Abnormal pressure of pressure sensor
(63HS) (Only for HRP·HA2(R1))
Abnormal if pressure sensor (63HS)
detects 0.1 MPa or less.
Detection is inoperative for 3 minutes after
compressor starting and 3 minutes after
and during defrosting.
Case
1 Failure in the operation of
the DC fan motor
2 Failure in the outdoor circuit
controller board
1 Decrease of power supply
voltage
2 Disconnection of compressor
wiring
3 Defective noise filter circuit
board (HRP71, 100VHA)
4 Disconnection or loose connec-
tion of CN52C (HRP71, 100V)
5 Defective ACT module (HRP71,
100VHA)
6 Defective ACT module drive
circuit of outdoor power circuit
board (HRP71, 100V)
7 Disconnection or loose connec-
tion of CNAF
(HRP71, 100VHA)
8 Disconnection or loose
connection of CN5 on the
outdoor power circuit board
9 Defective 52C drive circuit of
outdoor power circuit board
(HRP100, 125Y)
0 Disconnection or loose
connection of CN2 on the
outdoor power circuit board
1 Defective outdoor converter cir-
cuit board (HRP100, 125Y)
Defective outdoor fan (fan
1
motor) or short cycle of outdoor
unit during cooling operation
2 Defective outdoor pipe
thermistor (TH3), condens-
ing temperature T63HS (only
V/YHA2(R1))
3
Defective outdoor controller board
1 Disconnection or contact fail-
ure of connector (63HS) on the
outdoor controller circuit board
Abnormal if overcurrent of DC bus or
compressor is detected within 30 seconds
after compressor starts operating.
1 Stop valve is closed.
2 Decrease of power supply
voltage
3 Looseness, disconnection or
converse of compressor wiring
connection
4 Defective compressor
5 Defective outdoor power board
38
1 Open stop valve.
2 Check facility of power supply.
3 Correct the wiring (U
compressor.
•V•
W phase) to
Refer to 11-9 (Outdoor power circuit board).
4 Check compressor.
Refer to 11-6.
5 Replace outdoor power circuit board.
Page 39
Error Code
UH
(5300)
UL
(1300)
Abnormal point and detection methodJudgment and action
Current sensor error or input current error
• Abnormal if current sensor detects –1.0A
to 1.0A during compressor operation. (This
error is ignored in case of test run mode.)
• Abnormal if 38A (HRP71, 100VHA)/40A
(HRP71, 100VHA2) of input current is
detected or 34A (HRP71, 100VHA)/37A
(HRP71, 100VHA2) or more of input current is detected for 10 seconds continuously.
Low pressure (63L operated)
Abnormal if 63L is operated (under
-0.03MPa) during compressor operation.
63L: Low-pressure switch
1 Disconnection of compressor
wiring
2 Defective circuit of current
sensor on outdoor power
circuit board
3 Decrease of power supply volt-
age
1 Stop valve of outdoor unit is
closed during operation.
2 Disconnection or loose con-
nection of connector (63L) on
outdoor controller board
3 Disconnection or loose connec-
tion of 63L
4 Defective outdoor controller
board
5 Leakage or shortage of refriger-
ant
6 Malfunction of linear expansion
valve
Case
1 Correct the wiring (U
compressor. Refer to 11-9 ( Outdoor power
circuit board).
2 Replace outdoor power circuit board.
3 Check the facility of power supply.
1 Check stop valve.
2~4 Turn the power off and on again to check
if F3 is displayed on restarting.
If F3 is displayed, follow the F3 processing
direction.
5 Correct to proper amount of refrigerant.
6 Check linear expansion valve.
Refer to 11-6.
•V•
W phase) to
UP
(4210)
E0
or
E4
Compressor overcurrent interruption
Abnormal if overcurrent DC bus or compressor is detected after compressor starts
operating for 30 seconds.
Remote controller transmission error (E0)/
signal receiving error (E4)
1 Abnormal if main or sub remote control-
ler cannot receive normally any transmission from indoor unit of refrigerant
address “0” for 3 minutes.
(Error code : E0)
2 Abnormal if sub remote controller could
not receive any signal for 2 minutes.
(Error code: E0)
1 Abnormal if indoor controller board can
7 Defective compressor
8 Defective outdoor power circuit
board
9 Dip switch setting difference of
outdoor controller circuit board
1 Contact failure at transmission
wire of remote controller
2 All remote controllers are set
as “sub” remote controller.
In this case, E0 is displayed
on remote controller, and E4
is displayed at LED (LED1,
LED2) on the outdoor controller
circuit board.
3 Miswiring of remote controller
4 Defective transmitting receiving
circuit of remote controller
5 Defective transmitting receiv-
ing circuit of indoor controller
board of refrigerant address “0”
6 Noise has entered into the
transmission wire of remote
controller.
1 Open stop valve.
2 Check facility of power supply.
troller circuit board, disconnect the wiring to
compressor from the outdoor power circuit
board and check the output voltage among
phases, U, V, W, during test run.
No defect on board if voltage among phases
(U-V, V-W and W-U) is same. Make sure to
perform the voltage check with same performing frequency.
7 Check compressor. Refer to 11-6.
8 Replace outdoor power circuit board.
9 Check the dip switch setting of outdoor con-
troller circuit board.
1 Check disconnection or looseness of indoor
unit or transmission wire of remote controller.
2 Set one of the remote controllers “main” if
there is no problem with the action above.
3 Check wiring of remote controller.
• Total wiring length: Max. 500m
(Do not use cable o 3 or more.)
• The number of connecting indoor units:
Max. 16 units
• The number of connecting remote controller: Max. 2 units
When it is not the above-mentioned problem of
1~3
4 Diagnose remote controllers.
a) When “RC OK” is displayed,
Remote controllers have no problem.
Turn the power off, and on again to check.
If abnormality generates again, replace
indoor controller board.
b) When “RC NG” is displayed,
Replace remote controller.
c) When "RCE3" or "ERC00-66" is displayed,
noise may be causing abnormality.
* If the unit is not normal after replacing
indoor controller board in group control,
indoor controller board of address “0”
may be abnormal.
39
Page 40
Error Code
E1
or
E2
E3
or
E5
Abnormal point and detection method
Remote controller control board
1 Abnormal if data cannot be normally
read from the nonvolatile memory of the
remote controller control board.
(Error code: E1)
2 Abnormal if the clock function of remote
controller cannot be normally operated.
(Error code: E2)
Remote controller transmission error (E3)/
signal receiving error (E5)
1 Abnormal if remote controller could not
find blank of transmission path for 6 seconds and could not transmit.
(Error code: E3)
2 Remote controller receives transmitted
data at the same time, compares the
data, and when detecting it, judges
different data to be abnormal 30
continuous times. (Error code: E3)
1 Abnormal if indoor controller board could
not find blank of transmission path.
(Error code: E5)
2 Indoor controller board receives trans-
mitted data at the same time, compares
the data, and when detecting it, judges
different data to be abnormal 30
continuous times. (Error code: E5)
Case
1 Defective remote controller
1 2 remote controller are set as
“main.”
(In case of 2 remote con trollers)
2 Remote controller is connected
with 2 indoor units or more.
3 Repetition of refrigerant
address
4 Defective transmitting receiving
circuit of remote controller
5 Defective transmitting receiving
circuit of indoor controller board
6 Noise has entered into trans-
mission wire of remote control-
ler.
Judgment and action
1 Replace remote controller.
1 Set a remote controller to main, and the
other to sub.
2 Remote controller is connected with only one
indoor unit.
3 The address changes to a separate setting.
4~6 Diagnose remote controller.
a) When “RC OK” is displayed, remote con-
trollers have no problem.
Turn the power off, and on again to check.
When becoming abnormal again, replace
indoor controller board.
b) When “RC NG” is displayed, replace
remote controller.
c)
When “RC E3” or “ERC 00-66” is displayed, noise may be causing abnormality.
E8
(6840)
E9
(6841)
EF
(6607
or
6608)
Ed
(0403)
Indoor/outdoor unit communication error
(Signal receiving error) (Outdoor unit)
Abnormal if outdoor controller circuit board
could not receive anything normally for 3
minutes.
Indoor/outdoor unit communication error
(Transmitting error) (Outdoor unit)
1 Abnormal if “0” receiving is detected 30
times continuously though outdoor controller circuit board has transmitted “1”.
2 Abnormal if outdoor controller circuit
board could not find blank of transmission path for 3 minutes.
Non defined error code
This code is displayed when non defined
error code is received.
Serial communication error
1
Abnormal if serial communication between
outdoor controller circuit board and outdoor power circuit board is defective.
2 Abnormal if communication between out-
door controller circuit board and M-NET
board is not available.
1 Contact failure of indoor/out-
door unit connecting wire
2 Defective communication circuit
of outdoor controller circuit board
3 Defective communication circuit
of indoor controller board
4 Noise has entered into indoor/
outdoor unit connecting wire.
1 Indoor/ outdoor unit connecting
wire has contact failure.
2 Defective communication circuit
of outdoor controller circuit board
3 Noise has entered power supply.
4 Noise has entered indoor/ out-
door unit connecting wire.
1 Noise has entered transmission
wire of remote controller.
2 Noise has entered indoor/ out-
door unit connecting wire.
3 Outdoor unit is not inverter
models.
4 Model name of remote control-
ler is PAR-S25A.
1 Breaking of wire or contact
failure of connector CN2
between the outdoor controller
circuit board and the outdoor
power circuit board
2 Breaking of wire or contact
failure of connector CN4
between the outdoor controller
circuit board and the outdoor
power circuit board
3 Defective communication circuit
of outdoor power circuit board
4 Defective communication circuit
of outdoor controller circuit board
for outdoor power circuit board
1 Breaking of wire or contact
failure of connector between
outdoor controller circuit board
and M-NET board
2 Contact failure of M-NET board
power supply line
3 Noise has entered into M-NET
transmission wire.
1 Check disconnection or looseness of indoor/
outdoor unit connecting wire of indoor or outdoor units.
2~4 Turn the power off, and on again to
check. Replace indoor controller board or
outdoor controller circuit board if abnormality is displayed again.
1 Check disconnection or looseness of indoor/
outdoor unit connecting wire.
2~4 Turn the power off, and on again to
check. Replace outdoor controller circuit
board if abnormality is displayed again.
12 Turn the power off, and on again to check.
Replace indoor controller board or outdoor
controller circuit board if abnormality is displayed again.
3 Replace outdoor unit with inverter type out-
door unit.
4 Replace remote controller with MA remote
controller.
12 Check connection of each connector CN2
and CN4 between the outdoor controller
circuit board and the outdoor power circuit
board.
connection wire between outdoor controller circuit board (CNMNT) and M-NET board (CN5).
2 Check disconnection, looseness, or breaking of
connection wire between outdoor controller circuit board (CNMNT) and M-NET board (CND).
3 Check M-NET transmission wiring method.
40
Page 41
Error Code
t
P6
Abnormal point and detection methodJudgment and action
Freezing/overheating protection is working
Overheating protection <Heating mode>
Abnormal if condensing temperature of
pressure sensor (63HS) detects
Tcond. : or more and compressor operation frequency is less than or equal to
25 Hz. Detection is inoperative during
defrosting.
1 Overcharge of refrigerant
2 Defective refrigerant circuit
(clogs)
3
Malfunction of linear expansion valve
4 Reduced water flow
· Clogged filter
· Leakage of water
5 High temperature
Case
12 Check operating condition of refrigerant
circuit.
3 Check linear expansion valve.
45 Check water piping.
<Cooling mode>
Detected as abnormal when the pipe temperature is not in the cooling range 3 minutes after compressor start and 6 minutes
after the liquid or condenser/evaporator pipe
is out of cooling range.
Note 1)
It takes at least 9 minutes to detect.
Note 2) Abnormality P8 is not detected in
drying mode.
Cooling range : Indoor pipe temperature
(TH2 or TH5) – room temperature
(TH1) [ -3 :
TH: Lower temperature between liquid pipe
temperature and condenser/evaporator
temperature
<Heating mode>
When 10 seconds have passed after the
compressor starts operation and the hot
adjustment mode has finished, the unit is
detected as abnormal when condenser/
evaporator pipe temperature is not in heating range within 20 minutes.
between indoor room temperature
and pipe <liquid or condenser /
evaporator> temperature thermistor
• Shortage of refrigerant
• Disconnected holder of pipe
<liquid or condenser /
1~4
Check pipe <liquid or condenser/evaporator>
temperature with room temperature display
on remote controller and outdoor controller
circuit board.
Pipe <liquid or condenser / evaporator>
temperature display is indicated by setting
SW2 of outdoor controller circuit board as
follows.
evaporator> thermistor
• Defective refrigerant circuit
2 Converse connection of
extension pipe (on plural units
connection)
3 Converse wiring of indoor/
outdoor unit connecting wire (on
Conduct temperature check with outdoor
controller circuit board after connecting
(
‘A-Control Service Tool (PAC-SK52ST)’.
Temperature display of indoor liquid pipe
Indoor 1
1234 56
plural units connection)
4 Defective detection of indoor
room temperature and pipe
<condenser / evaporator>
temperature thermistor
Temperature display of indoor liquid pipe
Indoor 2
1234 56
5 Stop valve is not opened
completely.
A-Control Service Tool SW2 setting
23 Check converse connection of extension
pipe or converse wiring of indoor/outdoor
unit connecting wire.
[ ]
Temperature display of indoor condenser/
evaporator pipe Indoor 1
ON
OFF
ON
OFF
123456
Temperature display of indoor condenser/
evaporator pipe Indoor 2
123456
)
ON
OFF
ON
OFF
41
Page 42
<M-NET communication error>
Error CodeAbnormal point and detection methodCaseJudgment and action
A0
(6600)
Address duplicate definition
This error is displayed when transmission
from the units of same address is detected.
Note) The address and attribute displayed
at remote controller indicate the controller that detected abnormality.
1 There are 2 or more same
address of controller of outdoor unit, indoor unit, FRESH
MASTER, or LOSSNAY.
2 Noise has entered into trans-
mission signal and signal was
transformed.
(Note) “Indoor unit” in the text indicates M-NET board in outdoor unit.
Search the unit with same address as abnormality occurred. If the same address is found,
turn off the power supply of outdoor unit and
indoor unit and FRESH MASTER or LOSSNAY
at the same time for 2 minutes or more after
the address is corrected, and turn the power on
again.
Check transmission waveform or noise on
transmission wire.
A2
(6602)
A3
(6603)
Hard ware error of transmission processor
Transmission processor intended to transmit “0”, but “1” appeared on transmission
wire.
Note) The address and attribute display at
remote controller indicate the controller that detected abnormality.
BUS BUSY
1.
Overtime error by signal collision damage
Abnormal if transmitting signal is not
possible for 8-10 minutes continuously
because of collision of transmission.
2. Data could not reach transmission wire
for 8-10 minutes continuously because
of noise or etc.
Note) The address and attribute displayed
at remote controller indicate the controller that detected abnormality.
1 Error is detected if waveform is
transformed when wiring works
of transmission wire of outdoor unit, indoor unit, FRESH
MASTER or LOSSNAY are
done, or polarity is changed
with the power on and transmission data collides each other.
Defective transmitting receiving
2
circuit of transmission processor
3 Transmission data is changed
by the noise on transmission.
1 Transmission processor could
not transmit signal because
short cycle voltage of noise
and the like have entered into
transmission wire continuously.
2 Transmission quantity has
increased and transmission of
signal is not possible because
there was wiring mistake of
terminal block for transmission
wire (TB3) and terminal block
for central control (TB7) in out-
door unit.
3 Transmission are mixed with
others and occupation rate
on transmission wire rose
because of defective repeater
(a function to connector or dis-
connect transmission of control
and central control system) of
outdoor unit, then abnormality
is detected.
1 If the works of transmission wire is done
with the power on, turn off the power supply
of outdoor unit and indoor unit and FRESH
MASTER or LOSSNAY at the same time for
2 minutes or more, and turn the power on
again.
2 Check transmission waveform or noise on
transmission wire.
1 Check if transmission wire of indoor unit,
FRESH MASTER, LOSSNAY, or remote controller is not connected to terminal block for
central control (TB7) of outdoor unit.
2 Check if transmission wire of indoor unit,
FRESH MASTER or LOSSNAY is not connected to terminal block for transmission wire
of outdoor unit.
3 Check if terminal block for transmission wire
(TB3) and terminal block for central control
(TB7) is not connected.
4 Check transmission waveform or noise on
transmission wire.
A6
(6606)
Communication error with communication processor
Defective communication between unit
processor and transmission processor
Note) The address and attribute display at
remote controller indicate the controller that detected abnormality.
1 Data of transmission proces-
sor or unit processor is not
transmitted normally because
of accidental trouble such as
noise or thunder surge.
2 Address forwarding from unit
processor is not transmitted
normally because of defective
transmission processor hardware.
42
Turn off the power supply of outdoor unit, indoor
unit and FRESH MASTER or LOSSNAY at the
same time for 2 minutes or more, and turn the
power on again. System returns normally if
abnormality was accidental malfunction. If the
same abnormality generates again, abnormalitygenerated controller may be defective.
Page 43
Error CodeAbnormal point and detection methodCaseJudgment and action
NO ACK signal
1. Transmitting side controller detects
abnormal if a message was transmitted
but there is no reply (ACK) that a message was received. Transmitting side
detects abnormality every 30 seconds, 6
times continuously.
Note) The address and attribute displayed
at remote controller indicate the controller that did not reply (ACK).
A7
(6607)
2. If displayed address or attribute is outdoor unit, indoor unit detects abnormality
when indoor unit transmits signal to outdoor unit and there was no reply (ACK).
3. If displayed address or attribute is indoor
unit, remote controller detects abnormality when remote controller transmits signal to indoor unit and there was no reply
(ACK).
Common factor that has no relation with abnormality source
1 The unit of former address
does not exist as address
switch has changed while the
unit was energized.
2 Extinction of transmission wire
voltage and signal is caused by
over-range transmission wire.
• Maximum distance
•
Remote controller line
3 Extinction of transmission wire
voltage and signal is caused by
type-unmatched transmission
wire.
.....
Type
With shield wire CVVS, CPEVS
With normal wire (no shield) VCTF, VCTFK, CVV
CVS, VVR, VVF, VCT
Diameter
4 Extinction of transmission wire
voltage and signal is caused
by over-numbered units.
indoor unit of multi-refrigerant
system, if remote controller
transmits signal to indoor unit
while outdoor unit power supply of one refrigerant system is
turned off or within 2 minutes of
restart, abnormality is detected.
2 Contact failure of transmission
wire of remote controller or
indoor unit
3 Disconnection of transmission
connector (CN2M) of indoor unit
4 Defective transmitting receiving
circuit of indoor unit or remote
controller
.....
.....
200m
(12m)
1.25mm2 or more
Always try the followings when the error
“A7” occurs.
1 Turn off the power supply of outdoor
unit, indoor unit and FRESH MASTER or
LOSSNAY at the same time for 2 minutes or
more, and turn the power on again. If malfunction was accidental, the unit returns to
normal.
2 Check address switch of abnormality-gener-
ated address.
3 Check disconnection or looseness of abnor-
mality-generated or abnormality-detected
transmission wire (terminal block and connector)
4 Check if tolerance range of transmission wire
is not exceeded.
5 Check if type of transmission wire is correct
or not.
If there were some trouble of 1-5 above,
repair the defect, then turn off the power supply of outdoor unit, indoor unit and FRESH
MASTER or LOSSNAY at the same time for 2
minutes or more, and turn the power on again.
• If there was no trouble with 1-5 above in
single refrigerant system (1 outdoor unit),
controller of displayed address or attribute is
defective.
• If there was no trouble with 1-5 above in different refrigerant system (2 or more outdoor
units), judge with 6.
6 If address of abnormality source is the
address that should not exist, there is the
unit that memorizes nonexistent address
information. Delete useless address information with manual setting function of remote
controller.
Only the system FRESH MASTER or
LOSSNAY are connected to, or the system
that is equipped with group setting of different refrigerant system.
If there was no trouble with 1-6 above, replace
the controller board of displayed address or
attribute.
If the unit does not return normally, multi-controller board of outdoor unit may be defective
(repeater circuit).
Replace multi-controller board one by one to
check if the unit returns normally.
43
Continued to the next page.
Page 44
From the previous page.
Error CodeAbnormal point and detection methodCaseJudgment and action
4. If displayed address or attribute is
remote controller, indoor unit detects
abnormality when indoor unit transmits
signal to remote controller and there
was no reply (ACK).
1 During group operation with
indoor unit of multi-refrigerant
system, if indoor unit transmit
signal to remote controller
while outdoor unit power supply of one refrigerant system
is turned off or within 2 minutes of restart, abnormality is
detected.
2 Contact failure of transmission
wire of remote controller or
indoor unit
3 Disconnection of transmission
connector (CN2M) of indoor
unit
4 Defective transmitting receiving
circuit of indoor unit or remote
controller
Same as mentioned in “A7” of the previous
page.
A7
(6607)
5. If displayed address or attribute is
FRESH MASTER, indoor unit detects
abnormality when indoor unit transmits
signal to FRESH MASTER and there
was no reply (ACK).
6. If displayed address or attribute is
LOSSNAY, indoor unit detects abnormality when indoor unit transmits signal to
LOSSNAY and there was no reply (ACK).
1 During sequential operation
of indoor unit and FRESH
MASTER of other refrigerant
system, if indoor unit transmits
signal to FRESH MASTER
while outdoor unit power supply of same refrigerant system with FRESH MASTER is
turned off or within 2 minutes
of restart, abnormality is
detected.
2 Contact failure of transmission
wire of indoor unit or FRESH
MASTER
3 Disconnection of transmission
connector (CN2M) of indoor
unit or FRESH MASTER
4 Defective transmitting receiving
circuit of indoor unit or FRESH
MASTER
1 If the power supply of
LOSSNAY is off, indoor unit
detects abnormality when it
transmits signal to LOSSNAY.
2 During sequential operation
of indoor unit and LOSSNAY
of other refrigerant system, if
indoor unit transmits signal to
LOSSNAY while outdoor unit
power supply of same refrigerant system with LOSSNAY
is turned off or within 2 minutes of restart, abnormality is
detected.
3 Contact failure of transmis-
sion wire of indoor unit of
LOSSNAY
4 Disconnection of transmission
connector (CN2M) of indoor
unit
5 Defective transmitting receiv-
ing circuit of indoor unit or
LOSSNAY
7. If displayed address or attribute is nonexistent.
1 The unit of former address
does not exist as address
switch has changed while the
unit was energized.
2 Abnormality is detected
when indoor unit transmits
signal because the address
of FRESH MASTER and
LOSSNAY are changed after
sequential operation of FRESH
MASTER and LOSSNAY by
remote controller.
44
Page 45
Error CodeAbnormal point and detection methodCase
M-NET NO RESPONSE
Abnormal if a message was transmitted
and there were reply (ACK) that message
was received, but response command
does not return. Transmitting side detects
abnormality every 30 seconds, 6 times
continuously.
Note) The address and attribute displayed
at remote controller indicate the controller that did not reply (ACK).
A8
(6608)
1 Transmitting condition is
repeated fault because of
noise and the like.
2 Extinction of transmission wire
voltage and signal is caused
by over-range transmission
wire.
• Maximum distance
•
Remote controller line
3 Extinction of transmission wire
voltage and signal is caused
by type-unmatched transmission wire.
....
Type
With shield wire CVVS, CPEVS
With normal wire (no shield) VCTF, VCTFK, CVV
CVS, VVR, VVF, VCT
Diameter
4 Accidental malfunction of
abnormality-generated
controller
....
1.25mm2 or more
....
200m
(12m)
11-5. TROUBLESHOOTING BY INFERIOR PHENOMENA
Phenomena
1. Remote controller display does not
work.
1 DC12V is not supplied to remote controller.
(Power supply display
2 DC12~15V is supplied to remote controller, however,
no display is indicated.
• “PLEASE WAIT” is not displayed.
• “PLEASE WAIT” is displayed.
FactorCountermeasure
is not indicated on LCD.)
Judgment and action
1 Check transmission waveform or noise on
transmission wire.
2 Turn off the power supply of outdoor unit
and indoor unit and FRESH MASTER or
LOSSNAY at the same time for 2 minutes or
more, and turn the power on again. If malfunction was accidental, the unit returns to
normal. If the same abnormality generates
again, controller of displayed address and
attribute may be defective.
1 Check LED2 on indoor controller board.
(1) When LED2 is lit.
Check the remote controller wiring for
breaking or contact failure.
(2) When LED2 is blinking.
Check short circuit of remote controller
wiring.
(3) When LED2 is not lit.
Refer to No.3 below.
2 Check the following.
• Failure of remote controller if “PLEASE
WAIT” is not displayed
• Refer to No.2 below if “PLEASE WAIT”
is displayed.
2. “PLEASE WAIT” display is remained
on the remote controller.
3. When pressing the remote controller
operation switch, the OPERATION
display is appeared but it will be
turned off soon.
1 At longest 2 minutes after the power supply “PLEASE
WAIT” is displayed to start up.
2 Communication error between the remote controller
and indoor unit
3 Communication error between the indoor and outdoor
unit
4 Outdoor unit protection device connector is open.
1 After cancelling to select function from the remote
controller, the remote controller operation switch will
be not accepted for approx. 30 seconds.
45
1 Normal operation
2 Self-diagnosis of remote controller
3
”PLEASE WAIT” is displayed for 6 minutes
at most in case of indoor/outdoor unit
communication error. Check LED3 on
indoor controller board.
(1) When LED3 is not blinking.
Check indoor/outdoor connecting wire
for miswiring.
(Converse wiring of S1 and S2, or
break of S3 wiring.)
(2) When LED3 is blinking.
Indoor/outdoor connecting wire is normal.
4 Check LED display on outdoor controller
circuit board. Refer to 11-10.
Check protection device connector (63L
and 63H) for contact failure.
Refer to 11-9.
1 Normal operation
Page 46
Phenomena
4. Even controlling by the wireless
remote controller, no beep is heard
and the unit does not start operating. Operation display is indicated
on wireless remote controller.
5. When operating by the wireless
remote controller, beep sound is
heard, however, unit does not start
operating.
6. Remote controller display works
normally and the unit performs cool-
ing operation, however, the capacity
cannot be fully obtained. (The air
does not cool well.)
7. Remote controller display works
normally and the unit performs heating operation, however, the capacity
cannot be fully obtained.
Factor
1 The pair number settings of the wireless remote
controller and indoor controller board are mismatched.
1 No operation for 2 minutes at most after the power
supply ON.
2 Local remote controller operation is prohibited.
• Remote controlling adaptor is connected to CN32
on the indoor controller board.
• Local remote controller operation is prohibited by
centralised controller etc. since it is connected to
MELANS.
3 Factor of No.2.
1 Refrigerant shortage
2 Filter clogging
3 Heat exchanger clogging
4 Air duct short cycle
1 Linear expansion valve fault
Opening cannot be adjusted well due to linear expansion valve fault.
2 Refrigerant shortage
3 Lack of insulation for refrigerant piping
4 Filter clogging
5 Heat exchanger clogging
6 Air duct short cycle
7 Bypass circuit of outdoor unit fault
Countermeasure
1 Check the pair number settings.
1 Normal operation
2 Normal operation
3 Check the phenomena of No.2.
1 If refrigerant leaks, discharging tempera-
ture rises and LEV opening increases.
Inspect leakage by checking the temperature and opening.
Check pipe connections for gas leakage.
2 Open suction grille and check the filter.
Clean the filter by removing dirt or dust on
it.
3 If the filter is clogged, indoor pipe tem-
perature rises and discharging pressure
increases. Check if heat exchanger is
clogged by inspecting discharging pressure.
• Clean the heat exchanger.
4 Remove the blockage.
1 Discharging temperature and indoor heat
exchanger temperature does not rise.
Inspect the failure by checking discharging
pressure.
Replace linear expansion valve.
2 If refrigerant leaks, discharging tempera-
ture rises and LEV opening increases.
Inspect leakage by checking the temperature and opening.
Check pipe connections for gas leakage.
3 Check the insulation.
4 Open suction grille and check the filter.
Clean the filter by removing dirt or dust on
it.
5 If the filter is clogged, indoor pipe tem-
perature rises and discharging pressure
increases. Check if heat exchanger is
clogged by inspecting discharging pressure.
Clean the heat exchanger.
6 Remove the blockage.
7 Check refrigerant system during operation.
8. 1 For 3 minutes after temperature
adjuster turns off, the compressor will not start operating even
if temperature adjuster is turned
on.
2
For 3 minutes after temperature
adjuster turns on, the compressor will not stop operating even if
temperature adjuster is turned off.
(Compressor stops operating
immediately when turning off by
the remote controller.)
12 Normal operation
(For protection of compressor)
12 Normal operation
46
Page 47
Symptoms: “PLEASE WAIT” is kept being displayed on the remote controller.
Diagnosis flowCause
Check the display time of “PLEASE WAIT”
after turning on the main power.
6 minutes
or more
Check the LED display of the
outdoor controller circuit board.
2 minutes
How long is “PLEASE WAIT”
kept being displayed on the
remote controller?
2 to 6
minutes
Are any error codes
displayed on the
remote controller?
YES
or less
NO
“PLEASE WAIT”
•
will be displayed
during the start-up
diagnosis after turning
on the main power.
Inspection method and
troubleshooting
• Normal.
The start-up diagnosis will
be over in around 2 minutes.
Are any error codes
displayed on the LED?
NO
YES
• Miswiring of indoor/
outdoor connecting
wire
• Breaking of indoor/
outdoor connecting
wire (S3)
• Defective indoor
controller board
• Defective outdoor
controller circuit
board
• Defective indoor
controller board
• Defective remote
controller
• Refer to “Self-diagnosis
action table” in order to
solve the trouble.
• In case of communication
errors, the display of
remote controller may not
match the LED display of
the outdoor unit.
47
Page 48
Symptoms: Nothing is displayed on the remote controller
LED display of the indoor
controller board
LED1 :
LED2 :
LED3 :
Diagnosis flowCause
Check the voltage between S1
and S2 on the terminal block
(TB4) of the indoor unit which
is used to connect the indoor
unit and the outdoor unit.
AC 198V to AC 264V?
YES
NO
Check the voltage among L(L3) and
N on the terminal block (TB1) of the
outdoor power circuit board.
AC 198V to AC 264V?
NO
YES
Check the voltage between S1
and S2 on the terminal block
(TB1) of the outdoor unit which
is used to connect the indoor
unit and the outdoor unit.
Troubles concerning
•
power supply
Inspection method and
troubleshooting
• Check the power wiring
to the outdoor unit.
• Check the breaker.
Check the voltage of indoor
controller board (CN2D).
DC 12V to DC 16V?
YES
NO
Check the voltage of the unit after
removing the indoor power board
(CN2S).
DC 12V to DC 16V?
YES
NO
AC 198V to AC 264V?
YES
NO
• Bad wiring of the
outdoor controller
board
• The fuses on the
outdoor controller
circuit board are
blown.
• Bad wiring of the
outdoor controller
board
• The fuses on the
outdoor controller
circuit board are
blown.
• Defective indoor
controller board
• Miswiring, breaking
or poor connection of
in door/outdoor
connecting wire
• Check the wiring of the
outdoor unit.
• Check if the wiring is bad.
Check if the fuses are blown.
The fuses on the outdoor
controller circuit board will
be blown when the indoor
/outdoor connecting wire
short-circuits.
• Check if miswiring, breaking
or poor contact is causing this
problem. Indoor/outdoor
connecting wire is polarized
3-core type. Connect the
indoor unit and the outdoor
unit by wiring each pair of
S1, S2 and S3 on the both
side of indoor/outdoor
terminal blocks.
• Replace the indoor
controller board.
Check if there is miswiring
•
or breaking of wire.
48
• Defective indoor
power board
• Replace the indoor
power board.
Page 49
Symptoms: Nothing is displayed on the remote controller
LED display of the indoor
controller board
LED1 :
LED2 :
LED3 : or
Diagnosis flowCause
Check the voltage between S1 and
indoor unit which is used to connect the indoor unit and the
of the
outdoor unit.
AC 198V to AC 264V?
YES
Check the status
of the indoor controller
board LED3 display.
Blinking.
Check the refrigerant address of
the outdoor unit. (SW1-3 to 1-6)
Is the refrigerant
address “0”?
YES
Check the LED display of the
outdoor unit after turning on the
main power again.
S2 on the terminal block (TB4)
NO
Not lighting.
Check the looseness or disconnection
of the indoor/outdoor connecting wire.
Are there looseness or
disconnection of the indoor/
outdoor connecting wire?
NO
NO
YES
• Breaking or poor
contact of the indoor/
outdoor connecting
wire
• Normal
Only the unit which
has the refrigerant
address “0” supplies
power to the remote
controller
Inspection method and
troubleshooting
• Fix the breaking or poor
contact of the indoor/outdoor
connecting wire.
• Set the refrigerant
address to “0”. In case of
the multiple grouping
system, recheck the
refrigerant address again.
Is anything displayed?
Displayed.
Is “EA” or “Eb”
displayed?
YES
Check the voltage between S2
and S3 on the terminal block of
the outdoor unit.
DC 17V to DC 28V?
YES
NO
Not displayed.
NO
Is “E8” displayed?
Can the unit be restarted?
Can all the indoor
unit be operated?
NO
YES
• Defective outdoor
controller circuit
board
YES
• Defective outdoor
controller circuit
board
NO
• Defective indoor
controller board
• Influence of
electromagnetic
noise
• Defective outdoor
power circuit board
• Defective indoor
power board
• Replace the outdoor
controller circuit board.
• Replace the outdoor
controller circuit board.
Replace the indoor controller
•
board of the indoor unit which
doesn’t operate.
• Not abnormal.
There may be the influence
of electromagnetic noise.
Check the transmission wire
and get rid of the causes.
• Replace the outdoor
power circuit board.
• Replace the indoor
power board.
49
Page 50
Symptoms: Nothing is displayed on the remote controller
LED display of the indoor
controller board
LED1 :
LED2 : or
LED3 : —
Diagnosis flowCause
Check the voltage of the
terminal block (TB6) of
the remote controller.
DC 10V to DC 16V?
NO
Check the status
of the LED2.
Blinking
Check the status of the LED2
after disconnecting the remote
controller wire from the terminal
block (TB5) of the indoor unit.
YES
Lighting
• Defective
remote controller
• Breaking or poor
contact of the remote
controller wire
Inspection method and
troubleshooting
• Replace the
remote controller.
• Check if there is breaking
or poor contact of the
remote controller wire.
Check the voltage of the
terminal block (TB5)
connecting the remote
controller wire.
If it is not between DC 10V
and DC16V, the indoor
controller board must be
defective.
Check the status
of the LED2.
Blinking
Lighting
50
• The remote controller
wire short-circuits
• Defective indoor
controller board
• Check if the remote
controller wire is
short-circuited.
• Replace the indoor
controller board.
Page 51
• Before repair
Frequent calling from customers
Phone Calls From CustomersHow to Respond Note
Unit does
not operate
at all.
The operating display of remote
controller does not come on.
Unit cannot be restarted for a
while after it has stopped.
Check if power is supplied to air conditioner.
Nothing appears on the display unless power is
supplied.
Wait around 3 minutes to restart unit.
The air conditioner is in a state of being protected
by the microcomputer’s directive. Once the
compressor is stopped, the unit cannot be
restarted for 3 minutes. This control is also applied
when the unit is turned on and off by remote
controller.
Remote
controller
Error code appears and blinks
on the display of remote
controller.
“PLEASE WAIT” is displayed
on the screen.
“FILTER” is displayed on the
screen.
“STANDBY” is displayed on the
screen.
“DEFROST” is displayed on
the screen. (No air comes out of
the unit.)
Error code will be displayed if any protection
devices of the air conditioner are actuated.
What is error code?
Wait around 2 minutes.
An automatic startup test will be conducted for
2 minutes when power is supplied to the air
conditioner. “PLEASE WAIT” will be kept being
displayed while that time.
This indicates that it is time to clean the air filters.
Clean the air filters. Press the FILTER button on
the remote controller twice to clear “FILTER” from
the display.
See the operation manual that came with the
product for how to clean the filters.
This is displayed when the unit starts HEAT
operation, when the thermostat puts the
compressor in operation mode, or when the
outdoor unit ends DEFROST operation and
returns to HEAT operation.
The display will automatically disappear around
10 minutes later.
While “STANDBY” is displayed on the remote
controller, the airflow amount will be restricted
because the indoor unit’s heat exchanger is not
fully heated up. In addition to that, the up/down
vane will be automatically set to horizontal blow
in order to prevent cold air from directly blowing
out to human body. The up/down vane will return
to the setting specified by the remote controller
when “STANDBY” is released.
The outdoor unit gets frosted when the outside
temperature is low and the humidity is high.
“DEFROST” indicates the DEFROST
operation is being performed to melt this frost. The
DEFROST operation ends in around 10 minutes
(at most 15 minutes).
During the DEFROST operation, the indoor unit’s
heat exchanger becomes cold, so the fan is
stopped. The up/down vane will be automatically
set to horizontal blow in order to prevent cold air
from directly blowing out to human body. The
display will turn into “STANDBY” when DEFROST
operation ends.
Refer to “SELF-DIAGNOSIS
ACTION TABLE”.
Check if servicing is
required for the error.
Display time of “FILTER”
depends on the model.
Long life filter: 2500 hrs.
Regular filter: 100 hrs.
51
Page 52
Phone Calls From CustomersHow to RespondNote
The room cannot be cooled or heated sufficiently.
Sound
comes out
from the air
conditioner.
Something
is wrong
with the
blower…..
A gas escaping sound is heard
sometimes.
A cracking sound is heard
sometimes.
A buzzing sound is heard
sometimes.
A ticking sound is heard from
the outdoor unit sometimes.
A sound, similar to water
flowing, is heard from the unit.
The fan speed does not match
the setting of the remote
controller during DRY
operation.(No air comes out
sometimes during DRY
operation.)
The fan speed does not match
the setting of the remote
controller in HEAT operation.
Check the set temperature of remote controller.
The outdoor unit cannot be operated if the set
temperature is not appropriate.
The outdoor unit operates in the following modes.
COOL: When the set temperature is lower
than the room temperature.
HEAT: When the set temperature is higher
than the room temperature.
Check if filters are not dirty and clogged. If filters
are clogged, the airflow amount will be reduced
and the unit capacity will be lowered. See the
instruction manual that came with the product for
how to clean the filters.
Check there is enough space around the air
conditioner.
If there are any obstacles in the air intake or air
outlet of indoor/outdoor units, they block the
airflow direction so that the unit capacity will be
lowered.
This is not a malfunction.
This is the sound which is heard when the flow of
refrigerant in the air conditioner is switched.
This is not a malfunction.
This is the sound which is heard when internal
parts of units expand or contract when the
temperature changes.
This is not a malfunction.
This is the sound which is heard when the outdoor
unit starts operating.
This is not a malfunction.
This is the sound which is heard when the fan of
the outdoor unit is controlling the airflow amount
in order to keep the optimum operating condition.
This is not a malfunction.
This is the sound which is heard when the
refrigerant is flowing inside the indoor unit.
This is not a malfunction.
During the DRY operation, the blower’s ON/OFF is
controlled by the microcomputer to prevent
overcooling and to ensure efficient dehumidification.
The fan speed cannot be set by the remote
controller during DRY operation.
This is not a malfunction.
1) When the HEAT operation starts, to prevent the
unit from blowing cold air, the fan speed is
gradually increased from zero to the set speed,
in proportion to the temperature rise of the
discharged air.
2) When the room temperature reaches the set
temperature and the outdoor unit stops,
the unit starts the LOW AIR operation.
3) During the HEAT operation, the DEFROST
operation is performed to defrost the outdoor
unit. During the DEFROST operation, the
blower is stopped to prevent cold air coming
out of the indoor unit.
The up/down vane will be
automatically set to
horizontal blow in these
cases listed up on the left
(1)~3)). After a while, the
up/down vane will be
automatically moved
according to the setting of
the remote controller.
52
Page 53
Phone Calls From CustomersHow to RespondNote
Something
is wrong
with the
blower…..
Something
is wrong
with the
airflow
direction….
Air blows out for a while after
HEAT operation is stopped.
The airflow direction is changed
during COOL operation.
The airflow direction is changed
during HEAT operation.
(The airflow direction cannot be
set by remote controller.)
The airflow direction does not
change.
(Up/down vane, left/right louver)
This is not a malfunction.
The blower is operating just for cooling down the
heated-up air conditioner. This will be done within
1 minute.
This control is conducted only when the HEAT
operation is stopped with the electric heater ON.
If the up/down vane is set to downward in COOL
operation, it will be automatically set to horizontal
blow by the microcomputer in order to prevent
water from dropping down.
“1 Hr.” will be displayed on the remote controller if
the up/down vane is set to downward with the fan
speed set to be less than “LOW”.
In HEAT operation, the up/down vane is
automatically controlled according to the
temperature of the indoor unit’s heat exchanger.
In the following cases written below, the up/down
vane will be set to horizontal blow, and the setting
cannot be changed by remote controller.
1) At the beginning of the HEAT operation
2) While the outdoor unit is being stopped by
thermostat or when the outdoor unit gets started
to operate.
3) During DEFROST operation
The airflow direction will be back to the setting of
remote controller when the above situations are
released.
1) Check if the vane is set to a fixed position.
(Check if the vane motor connector is
removed.)
2) Check if the air conditioner has a function for
switching the air direction.
3) If the air conditioner does not have that
function, “NOT AVAILABLE” will be displayed
on the remote controller when “AIR
DIRECTION” or “LOUVER” button is pressed.
However, this control is also
applied to the models which
has no electric heater.
“STANDBY” will be displayed
on the remote controller in
case of 1) and 2).
“DEFROST” will be
displayed on the screen in
case of 3).
The air conditioner starts operating even though
any buttons on the remote controller are not
pressed.
The air conditioner stops even though any
buttons on the remote controller are not pressed.
Check if you set ON/OFF timer.
The air conditioner starts operating at the time
designated if ON timer has been set before.
Check if any operations are ordered by distant
control system or the central remote controller.
While “CENTRALLY CONTROLLED INDICATOR”
is displayed on the remote controller, the air
Check if power is recovered from power failure
(black out).
The units will automatically start operating when
power is recovered after power failure (black out)
occurs. This function is called “power failure
automatic recovery ”.
Check if you set ON/OFF timer.
The air conditioner stops operating at the time
designated if OFF timer has been set before.
control system or the central remote controller.
While “CENTRALLY CONTROLLED INDICATOR” is
displayed on the remote controller, the air conditioner is
under the control of external directive.
conditioner is under the control of external directive.
Check if any operations are ordered by distant
There might be a case that
“CENTRALLY CONTROLLED
INDICATOR
displayed.
There might be a case that
“CENTRALLY
CONTROLLED INDICATOR”
will not be displayed.
” will not be
53
Page 54
Phone Calls From CustomersHow to Respond Note
A white mist is expelled from the indoor unit.
Water or moisture is expelled from the outdoor
unit.
The display of wireless remote controller gets dim
or does not come on.
The indoor unit doesn’t receive a signal from
remote controller at a long distance.
This is not a malfunction.
This may occur when the operation gets started in
the room of high humidity.
Cooling: when pipes or piping joints are cooled, they
get sweated and water drips down.
Heating: water drips down from the heat exchanger.
* Make use of optional parts “Drain Socket” and
“Drain pan” if these water needs to be recovered and
drained out for once.
Batteries are being exhausted. Replace them and
press the reset button of remote controller.
54
Page 55
11-6. HOW TO CHECK THE PARTS
PUHZ-HRP71VHA PUHZ-HRP100VHA PUHZ-HRP100YHA PUHZ-HRP125YHA
PUHZ-HRP71VHA2 PUHZ-HRP100VHA2 PUHZ-HRP100YHA2 PUHZ-HRP125YHA2
PUHZ-HRP71VHA2R1 PUHZ-HRP100VHA2R1 PUHZ-HRP100YHA2R1 PUHZ-HRP125YHA2R1
Parts name
Thermistor (TH3)
<Outdoor pipe>
Thermistor (TH4)
<Discharge>
Thermistor (TH6)
<Outdoor
2-phase pipe>
Thermistor (TH7)
<Outdoor>
Thermistor (TH8)
<Heatsink>
Thermistor (TH32)
<Outdoor pipe>
Thermistor (TH33)
<Outdoor pipe>
Fan motor(MF1,MF2)
Solenoid valve coil
<Four-way valve>
(21S4)
Check points
Disconnect the connector then measure the resistance with a tester.
(At the ambient temperature 10~30)
TH4
Normal
160k~410k
Abnormal
TH3
TH6
TH7
4.3k~9.6k
Open or short
TH32
TH33
TH8
39k~105k
Refer to next page.
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20
Normal
)
Abnormal
Motor for compressor
(MC)
U
V
W
Linear expansion valve
(LEV-A/LEV-B/LEV-C)
M
Gray
Orange
Red
Yellow
Black
1
2
3
4
5
6
Solenoid valve coil
<Bypass valve>
(SV)
1435$150
Open or short
Measure the resistance between the terminals with a tester.
(Winding temperature 20
Normal
)
Abnormal
HRP100, 125YHRP71, 100V
Open or short
0.188 0.302
Disconnect the connector then measure the resistance with a tester.
(Winding temperature 20)
Normal
Gray - BlackGray - Red
Gray - Yellow
Gray - Orange
46$3
Measure the resistance between the terminals with a tester.
(At the ambient temperature 20)
Normal
1197$10
Abnormal
Open or short
Abnormal
Open or short
55
Page 56
Check method of DC fan motor (fan motor / outdoor controller circuit board)
Notes
· High voltage is applied to the connecter (CNF1, 2) for the fan motor. Pay attention to the service.
· Do not pull out the connector (CNF1, 2) for the motor with the power supply on.
(It causes trouble of the outdoor controller circuit
Self check
Symptom : The outdoor fan cannot turn around.
Fuse check
Check the fuse (F5) on outdoor
controller board.
board and fan motor.)
Did the fuse blow?
No
Wiring contact check
Contact of fan motor connector (CNF1, 2)
Is there contact failure?
No
Power supply check (Remove the connector (CNF1, 2))
Measure the voltage in the outdoor controller circuit
TEST POINT
: VDC (between 1 (+) and 4 (-) of the fan connector): VDC DC280~380V
Yes
Yes
Replace outdoor controller board (C.B)
and fan motor (MF1, 2).
Recover wiring.
board.
TEST POINT : VCC (between 5 (+) and 4 (-) of the fan connector): VCC DC15V
B constant = 4057 ± 2%
Rt =7.465exp{4057(
20: 250k'
30: 160k'
40: 104k'
50: 70k'
60: 48k'
11
273+t – 393
70: 34k'
80: 24k'
90: 17.5k'
100: 13.0k'
110: 9.8k'
200
150
100
Resistance (k)
50
0
500
400
)}
Resistance (k)
300
200
255075100125
Temperature ()
57
100
0
25
5075100120
Temperature ()
Page 58
Linear expansion valve
(1) Operation summary of the linear expansion valve
• Linear expansion valve opens/closes through stepping motor after receiving the pulse signal from the outdoor controller board.
• Valve position can be changed in proportion to the number of pulse signal.
<Connection between the outdoor controller board and the linear expansion valve>
· When linear expansion valve operation stops, all output phase
become OFF.
· When the switch is turned on, 700 pulse closing valve signal will
be sent till it goes to
A point in order to define the valve position.
(The pulse signal is being sent for about 20 seconds.)
When the valve moves smoothly, there is no sound or vibration
occurring from the linear expansion valve : however, when the
pulse number moves from B to A or when the valve is locked,
sound can be heard.
No sound is heard when the pulse number moves from
B to A in
case coil is burnt out or motor is locked by open-phase.
Valve position (capacity)
Extra tightening (about 32 pulse)
Close
· Sound can be detected by placing the ear against the screw driver
handle while putting the screw driver to the linear expansion
valve.
Open
500 pulse
Opening a valve
all the way
Pulse number
58
Page 59
(3) How to attach and detach the coil of linear expansion valve
<Composition>
Linear expansion valve is separable into the main body and the coil as shown in the diagram below.
Stopper
Coil
Lead wire
<How to detach the coil>
Hold the lower part of the main body (shown as A) firmly so that
the main body does not move and detach the coil by pulling it
upward.
Be sure to detach the coil holding main body firmly. Otherwise
pipes can bend due to pressure.
Main body
<How to attach the coil>
Hold the lower part of the main body (shown as A) firmly so that
the main body does not move and attach the coil by inserting it
downward into the main body. Then securely attach the coil stopper to main body. (At this time, be careful that stress is not added
to lead wire and main body is not wound by lead wire.)
If the stopper is not firmly attached to main body, coil may be
detached from the main body and that can cause defective operation of linear expansion valve.
To prevent piping stress, be sure to attach the coil holding the
main body of linear expansion valve firmly. Otherwise pipe may
break.
A
Be sure to attach
the stopper.
A
59
Page 60
11-8. EMERGENCY OPERATION
(1) When the error codes shown below are displayed on outdoor unit or microcomputer for wired remote controller or indoor
unit has a failure, but no other problems are found, emergency operation will be available by setting the emergency operation switch (SWE) on indoor controller board to ON and short-circuiting the connector (CN31) on outdoor controller board.
LWhen following abnormalities occur, emergency operation will be available.
Error code
U4
UE
E8
E9
E0 ~ E7
Ed
(2) Check the following items and cautions for emergency operation
1 Make sure that there is no abnormality in outdoor unit other than the above abnormalities. (Emergency operation will not
be available when error code other than the above are indicated.)
2 For emergency operation, it is necessary to set the emergency operation switch (SWE) on indoor controller board. Refer
to the electrical wiring diagram of indoor unit for how to set the indoor unit.
3 During emergency operation, the air-conditioner will continuously be operated by supplying power and stopping it: It can
not be turned on or off by remote control, and temperature control is not possible.
4 Do not perform emergency heating operation for an extended period of time: If the outdoor unit starts defrosting during
this period, cold air will blow out from the indoor unit.
5 Do not perform emergency cooling operation for more than 10 hours: Neglecting this could result in freezing the heat
exchanger in indoor unit.
Inspected content
Open/short of pipe thermistor (TH3/TH6/TH7/TH32/TH33/TH8)
Open of pressure sensor (T63HS) (only V/YHA2)
Indoor/outdoor unit communication error •Signal receiving error (Outdoor unit)
Indoor/outdoor unit communication error •Transmitting error (Indoor unit)
Communication error other than outdoor unit
Communicaiton error between outdoor controller board and M-NET board (Serial communication error)
(3) Emergency operation procedure
1 Turn the main power supply off.
2 Turn on the emergency operation switch (SWE) on indoor controller board.
3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller board to ON.
4 Use SW4-2 on outdoor controller board to set the operation mode (cooling or heating). (SW4-1 is not used.)
ON
OFF
CN31
Shorting pins
SW4
ON
12Cooling
Heating
5 Turning the main power supply on will start the emergency operation.
(4) Releasing emergency operation
1 Turn the main power supply off.
SW4
ON
2 Set the emergency operation switch (SWE) on indoor controller board to OFF.
3 Set the shorting pins of emergency operation connector (CN31) on outdoor controller
board to OFF.
4 Set SW4-2 on outdoor controller board as shown in the right.
12Cooling
w If shorting pins are not set on emergency operation connector (CN31), the setting remains OFF.
Heating
60
Page 61
(5) Operation data during emergency operation
During emergency operation, no communication is performed with the indoor unit, so the data items needed for operation
are set to the following values:
Operation mode
Operation data
COOL
Intake temperature (TH1)
Indoor pipe temperature (TH2)
Indoor 2-phase pipe temperature (TH5)
Set temperature
63HS
Pressure saturation temperature (T
)
Outdoor pipe temperature (TH3)
Outdoor discharge pipe temperature (TH4)
Outdoor 2-phase pipe temperature (TH6)
Outdoor air temperature (TH7)
Temperature difference code (intake temperature - set temperature) (Tj)
Discharge superheat (SHd)
Sub-cool (SC)
27
5
5
25
50
45
80
50
35
5
30deg
5deg
HEAT
20.5
45
50
22
50
5
80
5
7
5
30deg
5deg
(+1, +3)
(+1)
(+1)
(+1)
(+1)
(+2)
(+2)
Remarks
—
—
—
—
—
+1: If the thermistor temperature data is normal (not open/short), that data is loaded into the control as valid data.
When the unit enters emergency operation and TH values are mismatched, set the thermistors
to open/short. And the unit runs emegency operation with the values listed above.
+2: If one thermistor is set to open/short, the values for each will be different from the list above.
+3: Only for VHA2, YHA2
[Example] When pipe temperature thermistor (TH3) has an open or short circuit.
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
7(+)-4(-))
(CNF1
VSP
(Voltage between pins
of C5A, C5B):
DC 0V(when stopped),
DC 1– 6.5V
(when operated)
CNF1, CNF2
Connect to the fan motor
1-4: 280 - 380V DC
5-4: 15V DC
6-4: 0-6.5V DC
7-4: 15V DC(When stopped)
7.5V DC(When operated)
(0V-15V pulse)
SW1
Forced defrost, detect history record reset,
refrigerant address
CNDC
280 - 380V DC (1+, 3-)
(Outdoor power circuit
board for HRP71, 100V)
(Noise filter circuit board
for HRP100, 125Y)
+ -
Communication power supply
D71 Voltage
24V DC
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CNDM
1 to 2:
Input of low-level
sound priority mode
1 to 3:
Input of external contact point
CN52C
Connect to the noise filter circuit board (CN52C)
(HRP71,100V)
CN4
Transmission to outdoor power circuit
board (CN4)
SV2
Bypass valve
21S4
Four-way valve
CN2
Connect to the outdoor
power circuit board (CN2)
1-5: Reception from
power circuit board
2-5: Zero cross signal
(0-5V DC)
3-4: Not used
(HRP100, 125Y)
18V DC
(HRP71, 100V)
6-5: 16V DC
7-5: 16V DC
CNAC
2 to 4:
Power supply for outdoor
controller circuit board
(220V-240V AC)
1 to 3:
Power supply for indoor
and outdoor unit connection wire
(220-240V AC)
(Voltage between
right pins of PC5C
and PC5D, pin 3
and pin 4)
(Same as
(CNF1
7(+)-4(-))
VSP
(Voltage between pins
of C5A, C5B):
DC 0V(when stopped),
DC 1– 6.5V
(when operated)
SW9
Function switch
CNF1, CNF2
Connect to the fan motor
1-4: 280 - 380V DC
5-4: 15V DC
6-4: 0-6.5V DC
7-4: 15V DC(When stopped)
7.5V DC(When operated)
(0V-15V pulse)
SW1
Manual defrost, detect history record reset,
refrigerant address
CNDC
280V - 380 DC (1+, 3-)
(Outdoor power circuit
board for HRP71, 100V)
(Noise filter circuit board
for HRP100, 125Y)
+ -
Communication power supply
D71 Voltage
24V DC
CN51
External signal output
• Compressor operating signal
• Abnormal signal
CNDM
1 to 2:
Input of low-level
sound priority mode
1 to 3:
Input of external contact point
CN52C
Connect to the
power circuit board
(HRP71,100V)
CN4
Transmission to outdoor power circuit
board (CN4)
SV1
Drain hose heater output
(Only PUHZ-HRP·V/YHA2R1)
SV2
Bypass valve
21S4
Four-way valve
63H
High pressure
switch
CN2
Connect to the outdoor
power circuit board (CN2)
1-5: Reception from
power circuit board
2-5: Zero cross signal
(0-5V DC)
3-4: Not used
(HRP100, 125Y)
18V DC
(HRP71, 100V)
6-5: 16V DC
7-5: 16V DC
CNAC
2 to 4:
Power supply for outdoor
controller circuit board
(220V-240V AC)
1 to 3:
Power supply for indoor
and outdoor unit connection wire
(220-240V AC)
LI1-LI2/LI-LI3/LI3-LI1 : AC380/400/415V input
LI1-NI/LI2-NI/LI3-NI : AC220/230/240V input
(Connect to the terminal block (TB1))
CNAC1, CNAC2
AC220/230/240V
(Connect to the
outdoor controller
circuit board (CNAC))
CNDC
(Connect to the
outdoor controller
circuit board
(CNDC))
GD3
Connect to the earth
CNCT
Primary current
(Connect to the
outdoor power
circuit board (CN5))
CNL
Connect to the ACL4
NO
Connect to the outdoor
converter circuit board
(N-IN)
LO1, LO2, LO3
POWER SUPPLY
LO1-LO2/LO2-LO3/LO3-LO1 : AC380/400/415V OUTPUT
(Connect to the outdoor power circuit board (TB-L1, L2, L3))
65
Page 66
Outdoor power circuit board
PUHZ-HRP71VHA
PUHZ-HRP100VHA
Brief Check of POWER MODULE
W Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
1. Check of diode bridge
TABP1-TABS, TABN1-TABS, TABP1-TABT,TABN1-TABT
2. Check of DIP-IPM
P-U, P-V, P-W, N-U, N-V, N-W
CN2
Connect to the outdoor controller circuit board
(CN2)
1-5:Transmitting signal to the outdoor
controller circuit board (0~5V DC)
2-5:Zero cross signal (0~5V DC)
3,4:18V DC
6-5:16V DC
7-5:16V DC
CN3
Thermistor (TH8)
<Heatsink>
CN5
Detection of primary
current
Connect to the
outdoor noise filter
circuit board (CN5)
CN4
Connect to the
outdoor controller
circuit board (CN4)
CNAF
Connect to ACTM
DIP-IPM
CNDC
280-380V DC (1+, 3–)
Connect to the outdoor
controller circuit board
TABS/TABT
Connect to the
outdoor noise
filter circuit
board
Voltage among
phases:220240V AC
TABP1
Connect to
52C
TABN1
Connect to
ACTM
TABP2/SC-P2
Connect to the
ACTM
TABN
Connect to the
smoothing capacitor
CB –
TABP
Connect to the
smoothing capacitor CB +
TABU/V/W
Connect to the compressor (MC)
Voltage among phases:10V~180V AC
66
TABN2
Connect to ACTM
Page 67
Outdoor power circuit board
PUHZ-HRP71VHA2
PUHZ-HRP100VHA2
PUHZ-HRP71VHA2R1
PUHZ-HRP100VHA2R1
CN2
Connect to the outdoor controller circuit board (CN2)
CN4
Connect to the outdoor
controller circuit board (CN4)
N2
Connect to the smoothing
capacitor CB -
1-5: Transmitting signal to outdoor controller circuit
board (0-5 V DC)
2-5: Zero cross signal (0-5 V DC)
3-4: 18 V DC
6-5: 16 V DC
7-5: 16 V DC
CN52C
52C driving signal
Connect to the outdoor
controller circuit board
(CN52C)
CNDC
280-380 V DC (1+, 3-)
Connect to the outdoor
controller circuit board
(CNDC)
E2, E3
Connect to the earth
U/V/W
Connect to the compressor (MC) Voltage among
phases: 10 V-180 V AC
P2
Connect to the smoothing capacitor CB +
DCL1, DCL2
Connect to DCL
67
EI, E4
Connect to the
earth
CNAC1, CNAC2
220-240 V AC
Connect to the outdoor controller circuit
board (CNAC)
NI, LI
Voltage of 220-240 V AC
is input (Connect to the
terminal block (TB1))
Page 68
Outdoor power circuit board
PUHZ-HRP100YHA
PUHZ-HRP125YHA
PUHZ-HRP100YHA2
PUHZ-HRP125YHA2
PUHZ-HRP100YHA2R1
PUHZ-HRP125YHA2R1
CN5
Detection of
primary current
(Connect to the
outdoor noise filter
circuit board (CNCT))
CN4
Connect to the
outdoor controller
circuit board
(CN4)
Brief Check of POWER MODULE
W Usually, they are in a state of being short-circuited if they are broken.
Measure the resistance in the following points (connectors, etc.).
If they are short-circuited, it means that they are broken.
P2 - U , P2 - V , P2 - W , N2 - U , N2 - V , N2 - W
Note:The marks, L1 , L2 , L3 , N1 , N2 , P1 , P2 , U , V and W
shown in the diagram are not actually printed on the board.
CN7
Connect to the
outdoor converter
circuit board
(CN7)
CN2
Connect to the outdoor controller circuit
board (CN2)
1-5: Power circuit board Transmitting
signal to the controller board (0-5V DC)
2-5: Zero cross signal (0-5V DC)
–
3-4: Not used [ 5 :
1, 2, 6, 7 : + ]
6-5: 16V DC
7-5: 16V DC
TAB connecter
on X52A
Connect to the
RS resistor
R22
E
W
W
V
W
U
L3
L2
P1
L1
N2N1P2
TB-U, TB-V,
TB-W
Connect to the
compressor (MC)
Voltage among
phases:
10V-400V AC
TB-L1, TB-L2, TB-L3
Connect to the
outdoor noise filter
circuit board
(L1-L01, L2-L02,
L3-L03)
380V-415V AC
Connect to the noise filter
circuit board (LO1, No)
L1-A1
Connect to the ACL1
CN7
Connect to the
outdoor power
circuit board
(CN7)
L1-A2, L2-A2, L3-A2
Connect to the ACL1, ACL2, ACL3
69
L1-OU, L2-OU, L3-OU
Connect to the outdoor power circuit board
(TB-L1, L2, L3)
Page 70
Active filter module
PUHZ-HRP71VHA
PUHZ-HRP100VHA
P
Connect to the outdoor power
circuit board (TABP2)
L1, L2
Connect to the
DCL (Reactor)
Upper
side
+
Connect to the
outdoor power
circuit board
(TABP1)
Connect to the outdoor
–
power circuit board (TABN1)
Connect to the outdoor
power circuit board (CNAF)
1 : GND
2-1 : 15 V DC
3-1 : Control signal
4, 5 : Not used
6-1 : Control signal
N1
Non-connect
Lower
side
N2
Non-connect
lo
Connect to the outdoor
power circuit board (TABN2)
Connection and internal circuit diagram
(+)
(- )
Tester check points of Active fi lter module
Error condition Normal value (reference)
(–) and Ioopenless than 1
(–) and L2
P and L2
P and Io
L2 and Io
1. The symptom when the unit is in open error condition is described to determine open error by tester check.
W
2. SW2 setting
W
short100k" ~ 1M
open
short100k" ~ 1M
open
short100k" ~ 1M
open
short100k" ~ 1M
open
ON
: Code "20" display
16
OFF
"
"
1
W
"
1
W
"
1
W
"
1
W
DCL
L1L2
The unit does not operate (can not be switched ON)
1
The breaker operates
1
The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)
1
The breaker operates
1
The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)
1
The breaker operates
1
The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)
1
The breaker operates
1
The unit does not operate (can not be switched ON) 2U9 Abnormal stop (W2)
1
ACTM
P
+
N1
N2
Io
Symptom when the unit is in trouble
Load
70
Page 71
11-10. FUNCTION OF SWITCHES, CONNECTORS AND JUMPERS
(1) Function of switches
Typ e
of
switch
Dip
switch
Push
switch
Switch
SW1
SW4
SW8
SWP
No.
FunctionEffective timing
Action by the switch operation
ONOFF
1
Forced defrost
2
Abnormal history clear
3
4
Refrigerant address
+
1StartNormal
ClearNormaloff or operating
123
456ON123456ON123456ON123456
012 3
123
456ON123456ON123456ON123456
456 7
setting
5
6
1
2
1
2
Replacement operation +2
Separate indoor/outdoor
3
Test runOperatingOFF
Test run mode settingHeatingCooling
Use of existing pipeUsedNot used
unit power supplies
123
456ON123456ON123456ON123456
891011
123
456ON123456ON123456ON123456
12131415
Start
UsedNot used
Pump downStartNormal
ON
ON
ON
ON
Normal
When compressor is working
in heating operation. +1
When power supply ON
Under suspension
Always
Under suspension
When power supply ON
Under suspension
w1 Forced defrost should be done as follows.
1 Change the DIP SW1-1 on the outdoor controller board from OFF to ON.
2 Forced defrost will start by the above operation 1 if all these conditions written below are satisfied.
• Heat mode setting
• 10 minutes have passed since compressor started operating or previous forced defrost finished.
• Pipe temperature is less than or equal to 8:.
Forced defrost will finish if certain conditions are satisfied.
Forced defrost can be done if above conditions are satisfied when DIP SW1-1 is changed from OFF to ON.
After DIP SW1-1 is changed from OFF to ON, there is no problem if DIP SW1-1 is left ON or changed to OFF again. This
depends on the service conditions.
w2 In case of HRP·VHA2R1 and HRP·YHA2R1, SW8-2 is NO FUNCTION.
(If SW8-2 is switched ON, it could cause failure.)
71
Page 72
Type of
Switch
Dip
switch
Switch
SW5
SW7
+4
No.
1
2
3,4,5
6
1
FunctionEffective timing
No function
Power failure
automatic recovery +2
No function
Model select
Setting of demand
control
+3
2
<V/YHA>Max Hz setting (cooling)
3
<V/YHA2>Defrost Hz setting
Max Hz setting (heating)
4
Breaker capacity setting
5
6
1
2
Defrost setting
No function
Function switch
Auto recovery
Max Hz(cooling)
Defrost Hz
Max Hz(heating)
+5
For high humidity
Action by the switch operation
ONOFF
—
No auto recovery
—
Following SW5-6 reference
SW7-1SW7-2
OFF
ON
OFF
%
OFF
OFF
ON
%
0.54
%
Power consumption
(Demand switch ON)
0% (Operation stop)
0.8
0.8
50%
75%
32A
—
Valid
—
—
Normal
Normal
Normal
40A
Normal
—
Normal
—
When power supply ON
—
Always
Always
Always
Always
When power supply ON
Always
—
Always
SW9
Starting Ambient temp.
3,4
of flash injection
(only HA2R1)
SW9-3SW9-4
OFF
OFF
ON
ON
OFF
ON
OFF
ON
Ambient temp.
≤ 3 °C (Initial setting)
≤ 0 °C
≤ -3 °C
≤ -6 °C
Always
1
2
SW6
3
4
5
Model select
6
MODEL
71V
100V
SW6
ON
OFF
123647458
ON
OFF
123647458
SW5-6
ON
OFF
123456
ON
OFF
123456
MODEL
100Y
125Y
ON
OFF
123647458
ON
OFF
123647458
SW6
ON
OFF
123456
ON
OFF
123456
SW5-6
7
8
SW5
6
w2 “Power failure automatic recovery” can be set by either remote controller or this DIP SW. If one of them is set to ON,
“Auto recovery” activates. Please set “Auto recovery” basically by remote controller because all units do not have DIP SW.
Please refer to the indoor unit installation manual.
w3 SW7-1,2 are used for demand control. SW7-1,2 are effective only at the demand control.
(Refer to next page : Special function (b))
w4Please do not use SW7-3, 4 ,6 usually. Trouble might be caused by the usage condition.
w5Only for HRP100VHA2(R1) [For HRP71VHA/71VHA2(R1)/100VHA model, breaker capacity should be 32A regardless of
SW7-5 setting.]
(2) Function of connector
TypesConnectorFunction
Action by open/short operation
ShortOpen
Effective timing
ConnectorCN31Emergency operationStartNormalWhen power supply ON
72
Page 73
Special function
(a) Low-level sound priority mode (Local wiring)
Unit enters into Low-level sound priority mode by external signal input setting.
Inputting external signals to the outdoor unit decreases the outdoor unit operation sound 3 to 4 dB lower than that of usual.
Adding a commercial timer or on-off switch contactor setting to the CNDM connector which is optional contactor for demand
input located on the outdoor controller board enables to control compressor operation frequency.
W The performance depends on the load of conditioned outdoor temperature.
NOTE: When the Dip SW 9-1 on the control board of the outdoor unit is ON, set Dip SW9-1 to OFF.
How to wire
<Low-level sound priority mode circuit>
Purchased locally
Relay
supply
~
SW1
Insulate this point securely as
this is not used.
X
X
Adapter for external
signal input
(PAC-SC36NA)
Red 3
Brown 2
Orange 1
Outdoor unit
controller board
CNDM
SW1 : Switch
X : Relay (Contact spec. : DC1mA)
Max. 10 m including local wiring
1) Make the circuit as shown above with adapter for external signal input (PAC-SC36NA).
2) Turn SW1 to on for Low-level sound priority mode.
Turn SW1 to off to release Low-level sound priority mode and normal operation.
(b) On demand control (Local wiring)
Demand control is available by external input. In this mode, power consumption is decreased within the range of usual 0~100%.
How to wire
Basically, the wiring is same with (a).
Connect an SW 1 which is procured locally between Orange and Red (1 and 3) of the adapter for external signal input (PAC-SC36NA),
and insulate the tip of the brown lead wire.
It is possible to set it to the following power consumption (compared with ratings) by setting the SW7-1, 2.
SW7-1SW7-2
Power consumptopn
(SW1 ON)
OFFOFF0 % (Operation stop)
ONOFF50 %
OFFON75 %
73
Page 74
<Display function of inspection for outdoor unit>
The blinking patterns of both LED1 (green) and LED2 (red) indicate the types of abnormality when it occurs. Types of abnormality can be indicated in details by connecting an optional part “A-Control Service Tool (PAC-SK52ST)” to connector CNM on
outdoor controller board.
[Display]
(1)Normal condition
Unit condition
When the power is turned on
When unit stops
When compressor is warming up
When unit operates
(2)Abnormal condition
IndicationError
Outdoor controller board
LED1 (Green) LED2 (Red)
1 blinking 2 blinking
2 blinking 1 blinking
2 blinking
3 blinking
4 blinking
5 blinking
1.Error code displayed on remote controller
2.Refer to service manual for indoor unit.
Connector(63L) is open.
Connector(63H) is open.
2 connectors are open.
Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor
units (4 units or more)
Miswiring of indoor/outdoor unit connecting wire (converse wiring or disconnection)
Startup time over
Indoor/outdoor unit communication error
(signal receiving error) is detected by indoor unit.
Indoor/outdoor unit communication error
(transmitting error) is detected by indoor
unit.
Indoor/outdoor unit communication error
(signal receiving error) is detected by
outdoor unit.
Indoor/outdoor unit communication error
(transmitting error) is detected by outdoor
unit.
Remote controller signal receiving
error is detected by remote controller.
Remote controller transmitting error
is detected by remote controller.
Remote controller signal receiving
error is detected by indoor unit.
Remote controller transmitting error
is detected by indoor unit.
Error code is not defined.
Serial communication error
<Communication between outdoor
controller board and outdoor power
board>
<Communication between outdoor
controller board and M-NET P.C. board>
Communication error of M-NET
system
Outdoor controller boardA-Control Service Tool
LED1 (Green)LED2 (Red)Error code
LightedLighted
Lighted
Lighted
Lighted
ContentsInspection method
Not lighted
Not lighted
Lighted
Error
code
+1
F3
Check if connector (63H or 63L) on the outdoor controller
board is not disconnected.
F5
Check continuity of pressure switch (63H or 63L) by tester.
F9
—
Check if indoor/outdoor connecting wire is connected correctly.
Check if 4 or more indoor units are connected to outdoor unit.
Check if noise entered into indoor/outdoor connecting wire
—
or power supply.
Re-check error by turning off power, and on again.
00, etc.
08, etc.
C5, H7 etc.
—
Check if indoor/outdoor connecting wire is connected correctly.
E6
Check if noise entered into indoor/outdoor connecting wire or
power supply.
E7
Check if noise entered into indoor/outdoor controller board.
Re-check error by turning off power, and on again.
—
—
Check if connecting wire of indoor unit or remote controller
E0
is connected correctly.
Check if noise entered into transmission wire of remote
E3
controller.
Re-check error by turning off power, and on again.
E4
E5
Check if remote controller is MA remote controller(PAR-21MAA).
EF
Check if noise entered into transmission wire of remote controller.
Check if noise entered into indoor/outdoor connecting wire.
Re-check error by turning off power, and on again.
Check if connector (CN4) on outdoor controller board and
Ed
outdoor power board is not disconnected.
Check if there is poor connection of connector on outdoor
controller board(CNMNT and CNVMNT).
Check M-NET communication signal.
A0~A8
Indication of the display
Alternately blinking display
Operation mode
Detailed
reference
page
P. 3 4
P. 3 4
P. 3 5
P. 3 5
(EA)
P. 3 5
(Eb)
P. 3 5
(EC)
P. 4 0
(E8)
P. 4 0
(E9)
P. 3 9
P. 4 0
P. 3 9
P. 4 0
P. 4 0
P. 4 0
P.42~
P. 4 5
+2
+2
74
Page 75
IndicationError
Outdoor controller board
LED1 (Green)
3 blinking 1 blinking
LED2 (Red)
Abnormality of shell thermostat
and discharging temperature (TH4)
Abnormality of superheat due
to low discharge temperature
Check if connectors (TH4, LEV-A, and LEV-B) on outdoor controller
board are not disconnected.
Check if unit is filled with specified amount of refrigerant.
U7
Measure resistance values among terminals on indoor valve and
outdoor linear expansion valve using a tester.
Check if indoor/outdoor units have a short cycle on their air ducts.
U1
Check if connector
Check if heat exchanger and filter is not dirty.
Measure resistance values among terminals on linear expansion valve
UL
using a tester.
Check the outdoor fan motor.
U8
Check if connector (TH3) (63HS) on outdoor controller board is disconnected.
Ud
(T63HS : only V/YHA2)
4 blinking
5 blinking
Compressor overcurrent
breaking(Start-up locked)
Compressor overcurrent breaking
Abnormality of current sensor (P.B.)
Abnormality of power module
Open/short of discharge thermistor (TH4)
Open/short of outdoor thermistors
(TH3, TH32, TH33, TH6, TH7
Check if stop valves are open.
UF
Check looseness, disconnection, and converse connection of
compressor wiring.
Measure resistance values among terminals on compressor using a tester.
UP
Check if outdoor unit has a short cycle on its air duct.
UH
U6
Check if connectors
U3
controller board and connector
U4
disconnected.
Measure resistance value of outdoor thermistors.
and TH8)
Check if indoor/outdoor units have a short cycle on their air ducts.
U5
Measure resistance value of outdoor thermistor(TH8).
U9
compressor wiring.
Measure resistance value among terminals on compressor using a tester
Check if power supply voltage decreases.
Check the wiring of CN52C.
Check the wiring of CNAF.
Check if connectors (CN20, CN21, CN29 and CN44) on indoor
P1
controller board are not disconnected.
P2
Measure resistance value of indoor thermistors.
P9
4 blinking
6 blinking
7 blinking
1 blinking
Abnormality of heatsink
temperature
Abnormality of voltageCheck looseness, disconnection, and converse connection of
Abnormality of room temperature thermistor (TH1)
Abnormality of pipe temperature thermistor /Liquid (TH2)
Abnormality of pipe temperature
thermistor/Condenser-Evaporator
2 blinking
3 blinking
4 blinking
Abnormality of drain sensor (DS)
Float switch connector open (FS)
Check if connector (CN31)(CN4F) on indoor controller board is not
P4
disconnected.
Measure resistance value of indoor thermistors.
Measure resistance value among terminals on drain pump using
P5
a tester.
Check if drain pump works.
Check drain function.
Check if indoor unit has a short cycle on its air duct.
P6
Check if heat exchanger and filter is not dirty.
Measure resistance value on indoor and outdoor fan motors.
Check if the inside of refrigerant piping is not clogged.
Check if indoor thermistors(TH2 and TH5) are not disconnected from holder.
P8
Check if stop valve is open.
Check converse connection of extension pipe. (on plural units connection)
Check if indoor/outdoor connecting wire is connected correctly.
(on plural units connection)
1 Error code displayed on remote controller
2 Refer to service manual for indoor unit.
(63H)(63L)
(TH3,TH32,TH33,TH4, and TH7/6)
on outdoor controller board is not disconnected.
(CN3)
on outdoor power board are not
on outdoor
Detailed
reference
page
P. 3 6
P. 3 7
P. 3 6
P. 3 9
P. 3 8
P. 3 8
P. 3 9
P. 3 8
P. 3 7
P. 3 6
P. 3 7
P. 3 7
P. 3 8
.
2
2
2
2
P. 4 1
P. 4 1
75
Page 76
<Outdoor unit operation monitor function>
[When optional part “A-Control Service Tool (PAC-SK52ST)” is connected to outdoor controller board (CNM)]
Digital indicator LED1 displays 2 digit number or code to inform operation condition and the meaning of error code by controlling
DIP SW2 on “A-Control Service Tool”.
Operation indicator SW2 : Indicator change of self diagnosis
SW2 setting
1ON23456
Display detail
Explanation for displayUnit
<Digital indicator LED1 working details>
(Be sure that 1 to 6 in the SW2 are set to OFF.)
(1) Display when the power supply ON
When the power supply ON, blinking displays by turns.
1 second
interval
Wait for 4 minutes at the longest.
(2) When the display lights (Normal operation)
1 Operation mode display.
(Lighting)
LED1
The tens digit : Operation mode
DisplayOperation Model
O
C
H
d
OFF / FAN
COOLING / DRY +
HEATING
DEFROSTING
w C5 is displayed during replacement operation.
2 Display during error postponement
Postponement code is displayed when
compressor stops due to the work of
protection device.
Postponement code is displayed while
error is being postponed.
(3) When the display blinks
Inspection code is displayed when compressor stops due to the work of protection devices.
DisplayContents to be inspected (During operation)
Abnormal high pressure (63H operated)
U1
Abnormal high discharging temperature, shortage of refrigerant
U2
Open/short circuit of discharging thermistor(TH4)
U3
Open/short of outdoor unit thermistors(TH3, TH32, TH33, TH6, TH7 and TH8)
U4
Abnormal temperature of heatsink
U5
Abnormality of power module
U6
Abnormality of superheat due to low discharge temperature
Display Contents to be inspected (When power is turned on)
63L connector(red) is open.
F3
63H connector(yellow) is open.
F5
2 connectors(63H/63L) are open.
F9
Indoor/outdoor communication error (Signal receiving error) (Outdoor unit)
E8
Indoor/outdoor communication error (Transmitting error) (Outdoor unit)
E9
Miswiring of indoor/outdoor unit connecting wire, excessive number of indoor units (4 units or more)
EA
Miswiring of indoor/outdoor unit connecting wire(converse wiring or disconnection)
Eb
Startup time over
EC
Communication error except for outdoor unit
E0~E7
76
Page 77
SW2 setting
1ON23456
Display detail
Pipe temperature / Liquid (TH3)
– 40~90
Explanation for displayUnit
– 40~90
(When the coil thermistor detects 0: or below, “–”
and temperature are displayed by turns.)
(Example) When -10:;
0.5 secs. 0.5secs. 2 secs.
10
:
1ON23456
1ON23456
1ON23456
1ON23456
1ON23456
Discharge temperature (TH4)
3~217
Output step of outdoor FAN
0~10
The number of ON / OFF times of compressor
0~9999
Compressor integrating operation times
0~9999
Compressor operating current
0~50
3~217
(When the discharge thermistor detects 100: or
more, hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 105:;
0.5 secs. 0.5secs. 2 secs.
1
05
0~10
0~9999
(When the number of times is 100 or more,
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 42500 times (425 ✕100 times);
0.5 secs. 0.5secs. 2 secs.
4
25
0~9999
(When it is 100 hours or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 2450 hours (245 ✕10 hours);
0.5 secs. 0.5secs. 2 secs.
2
45
0~50
w Value after the decimal point will be truncated.
:
Step
100 times
10 hours
A
1ON23456
1ON23456
1ON23456
1ON23456
Compressor operating frequency
0~225
0~255
(When it is 100Hz or more, hundreds digit, tens
digit and ones digit are displayed by turns.
(Example) When 125Hz;
0.5 secs. 0.5secs. 2 secs.
LEV-A opening pulse
0~480
1
0~480
(When it is 100 pulse or more, hundreds digit, tens
25
digit and ones digit are displayed by turns.
(Example) When 150 pulse;
0.5 secs. 0.5secs. 2 secs.
Error postponement code history (1)
of outdoor unit
1
Postponement code display
Blinking: During postponement
50
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
Operation mode on error occurringOperation mode of when operation stops due to
error is displayed by setting SW2 like below.
(SW2)
1ON23456
Hz
Pulse
Code
display
Code
display
77
Page 78
SW2 setting
1ON23456
Display detail
Pipe temperature / Liquid (TH3) on error
occurring
– 40~90
Explanation for displayUnit
– 40~90
(When the coil thermistor detects 0: or below, “–”
and temperature are displayed by turns.)
(Example) When –15:;
0.5 secs. 0.5secs. 2 secs.
15
:
1ON23456
1ON23456
1ON23456
1ON23456
Compressor temperature (TH4) or
discharge temperature (TH4) on error
occurring
3~217
Compressor operating current on error
occurring
0~20
Error code history (1) (latest)
Alternate display of abnormal unit
number and code
Error code history (2)
Alternate display of error unit number
and code
3~217
(When the temperature is 100: or more, the
hundreds digit, tens digit and ones digit are
displayed by turns.)
(Example) When 130:;
0.5 secs. 0.5secs. 2 secs.
1
30
0~20
When no error history,
“ 0 ” and “– –” are displayed by turns.
When no error history,
“ 0 ” and “– –” are displayed by turns.
:
A
Code
display
Code
display
1ON23456
Thermo ON time
0~999
Test run elapsed time
0~120
0~999
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example) When 245 minutes;
0.5 secs. 0.5secs. 2 secs.
2
45
0~120
(When it is 100 minutes or more, the hundreds digit,
tens digit and ones digit are displayed by turns.)
(Example) When 105 minutes;
0.5 secs. 0.5secs. 2 secs.
1
05
78
Minute
Minute
Page 79
SW2 setting
1ON23456
Display detail
The number of connected indoor units
Explanation for display
0~3
(The number of connected indoor units are displayed.)
Unit
Unit
1ON23456
1ON23456
1ON23456
Capacity setting display
Outdoor unit setting information
Indoor pipe temperature / Liquid (TH2(1))
Indoor 1
– 39~88
Displayed as an outdoor capacity code.
Capacity
HRP71V
HRP100V, 100Y
HRP125Y
Code
14
20
25
• The tens digit (Total display for applied setting)
Setting details
H·P /
Cooling only
Single phase / 3 phase
0 : H·P 1 : Cooling only
0 :
Display details
Single phase
2 : 3 phase
• The ones digit
Setting details
Defrosting switch
(Example) When heat pump, 3 phase and
defrosting (normal) are set up, “20” is
displayed.
– 39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
– 39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
– 39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
– 39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
8~39
:
:
:
:
79
Page 80
SW2 setting
1ON23456
Display detail
Indoor setting temperature
17~30
Explanation for displayUnit
17~30
:
1ON23456
1ON23456
1ON23456
1ON23456
1ON23456
1ON23456
Outdoor pipe temperature / Cond./ Eva.
(TH6) (V/YHA)
-39~88
Pressure saturation temperature (T63HS)
(V/YHA2)
-39~88
Outdoor outside temperature (TH7)
-39~88
Outdoor heatsink temperature (TH8)
-40~200
Discharge superheat SHd
0~255
Cooling = TH4-TH6
Heating = TH4-TH5
Cooling = TH4-T
Heating = TH4-T63HS
63HS
(V/YHA)
(V/YHA2)
Sub cool. SC
0~130
Cooling = TH6-TH3
Heating = TH5-TH2
Cooling = T63HS-TH3
Heating = T63HS-TH2
(V/YHA)
(V/YHA2)
Input current of outdoor unit
-39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
-39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
-40~200
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
(When the thermistor detects 100: or more,
hundreds digit, tens digit and ones digit are
displayed by turns.)
0~255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by turns.)
0~500
(When it is 100 or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
:
:
:
°C
°C
0.1 A
1ON23456
1ON23456
1ON23456
LEV-B opening pulse
0~480
Targeted operation frequency
0~255
DC bus voltage
180~370
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
0~255
(When it is 100Hz or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
180~370
(When it is 100V or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
80
Pulse
Hz
V
Page 81
SW2 setting
1ON23456
1ON23456
Display detail
Capacity save
0~255
When air conditioner is connected to
M-NET and capacity save mode is
demanded, “0”~”100” is displayed.
When there is no setting
of capacity save “100” is
displayed.
Error postponement code history (2)
of outdoor unit
Explanation for displayUnit
0~255
(When the capacity is 100% hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 100%;
0.5 secs. 0.5secs. 2 secs.
1
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
00
%
Code
display
1ON23456
1ON23456
1ON23456
1ON23456
Error postponement code history (3)
of outdoor unit
Error code history (3) (Oldest)
Alternate display of abnormal unit
number and code
Error thermistor display
When there is no error thermistor,
“–“ is displayed.
Operation frequency on error occurring
0~255
Postponement code display
Blinking: During postponement
Lighting: Cancellation of postponement
“00” is displayed in case of no postponement.
When no error history, “0” and “– –“ are displayed by
turns.
3: Outdoor pipe temperature /Liquid (TH3, TH32)
6: Outdoor pipe temperature /2-phase (TH6)
7: Outdoor outside temperature (TH7)
8: Outdoor heatsink (TH8)
0~255
(When it is 100Hz or more, hundreds digit, tens digit
and ones digit are displayed by turns.)
(Example) When 125Hz;
0.5 secs. 0.5secs. 2 secs.
1
25
Code
display
Code
display
Code
display
Hz
1ON23456
1ON23456
Fan step on error occurring
0~10
Outdoor pipe temperature (TH33)
-39~88
0~10
-39~88
(When the temperature is 0: or less, “–” and
temperature are displayed by turns.)
81
Step
:
Page 82
SW2 setting
1ON23456
Display detail
LEV-A opening pulse on error occurring
0~480
Explanation for displayUnit
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 130 pulse;
0.5 secs. 0.5secs. 2 secs.
1
30
Pulse
1ON23456
1ON23456
1ON23456
1ON23456
Indoor room temperature (TH1) on error
occurring
8~39
Indoor pipe temperature / Liquid (TH2)
on error occurring
-39~88
Indoor pipe temperature / Cond./ Eva.
(TH5) on error occurring (V/YHA)
-39~88
Pressure saturation temperature (T
63HS)
on error occurring (V/YHA2)
-39~88
Outdoor pipe temperature / Cond./ Eva.
(TH6) on error occurring
-39~88
8~39
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 secs. 0.5secs. 2 secs.
15
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 secs. 0.5secs. 2 secs.
15
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 secs. 0.5secs. 2 secs.
15
:
:
:
:
1ON23456
1ON23456
Outdoor outside temperature (TH7) on
error occurring
-39~88
Outdoor heatsink temperature (TH8) on
error occurring
-40~200
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(Example) When –15°C;
0.5 secs. 0.5secs. 2 secs.
15
-40~200
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
82
:
:
Page 83
SW2 setting
1ON23456
Display detail
Discharge superheat on error occurring
SHd
0~255
Cooling = TH4-TH6
Heating = TH4-TH5
Cooling = TH4-T
Heating = TH4-T63HS
63HS
(V/YHA)
(V/YHA2)
Explanation for displayUnit
0~255
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 150°C;
0.5 secs. 0.5secs. 2 secs.
1
50
:
1ON23456
1ON23456
1ON23456
1ON23456
Sub cool on error occurring SC
0~130
Cooling = TH6-TH3
Heating = TH5-TH2
Cooling = T
63HS-TH3
Heating = T63HS-TH2
(V/YHA)
(V/YHA2)
Thermo-on time until error stops
0~999
Indoor pipe temperature / Liquid
(TH2 (3))
Indoor 3
-39~88
Indoor pipe temperature / Cond./ Eva.
(TH5 (3))
Indoor 3
-39~88
0~130
(When the temperature is 100°C or more, hundreds
digit, tens digit and ones digit are displayed by
turns.)
(Example) When 115°C;
0.5 secs. 0.5secs. 2 secs.
1
15
0~999
(When it is 100 minutes or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(Example) When 415 minutes;
0.5 secs. 0.5secs. 2 secs.
4
15
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
-39~88
(When the temperature is 0°C or less, “–” and
temperature are displayed by turns.)
When there is no indoor unit, “00” is displayed.
:
Minute
:
:
1ON23456
1ON23456
Replacement operation
W If replacement operation is conducted
even once, “1” is displayed.
If replacement operation time is less
than 2 hrs. “0” is displayed.
U9 Error status during the Error
postponement period
83
1: Conducted.
0: Not yet.
DescriptionDetection pointDisplay
Normal
Overvoltage error
Undervoltage error
Input current sensor error
L
1-phase open error
Abnormal power synchronous signal
ACTM error (HRP71, 100V)
Undervoltage
Power circuit board
Check CNAF wiring.
Defective ACTM/ P.B.
–
00
01
02
04
08
20
Code
display
Page 84
SW2 setting
Display detail
Controlling status of compressor
operating frequency
Explanation for display
The following code will be a help to know the
operating status of unit.
•
The tens digit
Display
Compressor operating frequency control
Primary current control
1
Secondary current control
2
Unit
1ON23456
1ON23456
LEV-C opening pulse
0~480
•The ones digit
activated control is displayed.)
Display
1
2
4
8
(Example)
The following controls are activated.
• Primary current control
• Preventive control for excessive tempe rature rise of condensing temperature
• Preventive control for excessive tempe rature rise of heatsink
0~480
(When it is 100 pulse or more, hundreds digit, tens
digit and ones digit are displayed by turns.)
(In this digit, the total number of
Compressor operating frequency control
Preventive control for excessive temperature rise of discharge temperature
Preventive control for excessive temperature rise of condensing temperature
Frosting preventing control
Preventive control for excessive temperature rise of radiator panel
LED
Code
display
Pulse
84
Page 85
12FUNCTION SETTING
12-1. UNIT FUNCTION SETTING BY THE REMOTE CONTROLLER
Each function can be set according to necessity using the remote controller. The setting of function for each unit can only be
done by the remote controller. Select function available from the table 1.
<Table 1> Function selections
(1) Functions are available when setting the unit number to 00 (Select 00 referring to 4 setting the indoor unit number.)
W1 The functions below are available only when the wired remote controller is used. The functions are not available for
floor standing models.
Function
Power failure
automatic recovery
Indoor temperature
detecting 1
LOSSNAY
connectivity
Power supply
voltage
Frost prevention
temperature
Humidifier control
(Heating mode)
Change of defrosting
control
Refrigerant leakage
setting (%)
OFF
ON
Average data from each indoor unit
Data from the indoor unit with remote controller
Data from main remote controller
Not supported
Supported
Supported
240V
220V, 230V
2 (Normal)
3
When the compressor operates, the humidifier also operates.
When the fan operates, the humidifier also operates.
Standard
For high humidity
80%
60%
(Indoor unit does not intake outdoor air through LOSSNAY
(Indoor unit intakes outdoor air through LOSSNAY)
Meaning of "Function setting"
Mode02:indoor temperature detecting
OUTDOOR
Settings
OUTDOOR
)
Mode No.
01
02
03
04
15
16
17
21
Setting No.
1
2
1
2
3
1
2
3
1
2
1
2
1
2
1
2
1
2
OUTDOOR
: Initial setting
(when sent from the factory)
Remarks
The setting is
applied to all
the units in the
same
refrigerant
system.
OUTDOOR
No.
Indoor temperature(ta)=
No.1
Average data of the
sensor on all the
indoor units
No.2
Data of the sensor
on the indoor unit that
connected
with remote controller
No.3
Data of the sensor
on main remote
controller.
INDOOR
REMOTE
(MAIN)
Initial
ta=(A+B)/2ta=(A+B)/2ta=Ata=A
INDOOR
REMOTE
(SUB)
INDOOR
REMOTE
(MAIN)
INDOOR
REMOTE
(SUB)
INDOOR
REMOTE
(MAIN)
REMOTE
(SUB)
setting
ta=Ata=Bta=Ata=A
ta=Cta=Cta=Cta=C
INDOOR
REMOTE
(MAIN)
85
Page 86
(2) Functions are available when setting the unit number to 01-03 or AL (07 in case of wireless remote controller)
• When setting functions for an indoor unit in an independent system, set the unit number to 01 referring to 4 Set the
indoor unit number of Operating Procedure.
• When setting functions for a simultaneous twin indoor unit system, set the unit number to 01 to 02 for each indoor
case of selecting different functions for each unit referring to 4 setting the indoor unit number of Operating Procedure.
• When setting the same functions for an entire simultaneous twin indoor unit system, set refrigerant address to AL (07 in
case of wireless remote controller) referring to 4 setting the indoor unit number of Operating Procedure.
)
PKA-HAL
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Mode
FunctionSettings
Filter sign100h1
Air flow
(
Fan speed
No.of air outlets4 directions1
Optional high efficiency
filter
Vane setting
Energy saving airDisabled
flow(Heating mode
Optional humidifier
(
PLA only
Vane differential setting
in heating mode
(
cold wind prevention
SwingNot available Swing
Set temperature in heating
mode(4 deg up
Fan speed when theExtra low1
heating thermostat is OFF
Fan speed when the
cooling thermostat is OFF
Detection of abnormality of
the pipe temperature (P8)Not available
)
)
)
+1
2500h072
No filter sign indicator
Quiet
Standard
High ceiling
3 directions092
2 directions
Not supported
Supported
No vanes
Vane No.1 setting
Vane No.2 setting
)
Enabled
Not supported
Supported
No.1 setting (TH5: 24-28
No.2 setting (Standard,TH5:28-32
)
No.3 setting (TH5: 32-38
Available Wave air flow
Available
Not available
Stop
Set fan speed
Set fan speed
Stop
Available
(
Vane No.3 setting : PLA only
)
)
PLA
}
Temperature correction: Valid
Temperature correction: Invalid
)
)
}
PLA
No.
082
10
112
12
13
142
23
24
252
27
28
Setting
No.
+1 PKA-HAL/KAL : 2 deg up
3
1
3
3
1
2
1
3
1
2
1
2
1
3
1
2
1
2
3
1
2
1
2
4-Way
cassette
PLA-BA(2)(3)
-
-
: Initial setting (Factory setting
- : Not available
Ceiling
concealed
PEAD-EA(2)
PEAD-GA
PKA-GAL
PKA-FAL(2)
--
--
--
--
--
--
--
--
--
--
--
--
-
--
--
-
-
-
-
-
Wall mounted
-
unit in
PKA-KAL
-
-
-
-
-
-
-
-
-
-
-
-
-
-
Mode No.11
Setting No.SettingsPLA-BA(2)(3)
1
Vane No.3 setting
No Vanes
2Vane No.1 settingStandard
3Vane No.2 setting
* Be careful of the smudge on ceiling.
PEAD-RP•JA(L)
FunctionSettings
Filter sign100h1
External static pressure
External static pressure
Set temperature in heating
mode(4 deg up
Fan speed during the
heating thermo OFF
Fan speed during the
cooling thermo OFF
Detection of abnormality
of the pipe temperature (P8)
)
2500h072
No filter sign indicator
35/50/70/100/150Pa
35/50/70/100/150Pa
Available
Not available
Extra low
Stop
Set fan speed
Set fan speed
Stop
Available
Not available
Less smudging
(
Downward position than the standard
Less draft *
(
Upward position than the standard
Setting
Mode
No.
No.
3
Refer to the right table
08
Refer to the right table
10
1
24
2
1
25
2
3
1
27
2
1
28
2
)
: Initial setting
(
Factory setting
86
)
)
External static
pressure
35Pa
50Pa
70Pa
100Pa
150Pa
Setting No.
Mode No. 08 Mode No. 10
2
3
1
2
3
1
1
2
2
2
Initial setting
(
Factory setting
)
Page 87
12-1-1. Selecting functions using the wired remote controller
First, try to familiarize yourself with the flow of the function selection procedure. In this section, an example of setting the room
temperature detection position is given.
For actual operations, refer to steps to .
Setting number
Mode number
Refrigerant addressUnit number
Selecting functions using the wired remote controller
Check the function selection setting.
Switch to function setting mode.
(Press
and at the same time
For modes 15 and higher,
press
with the remote controller stopped.)
Specify refrigerant address 00 (outdoor unit).
Specify unit No. 00. (indoor unit)
(Use
and .)
Enter the setting.
(Press
Select mode No. 02
.)
(Specified indoor unit:
FAN operation)
(room temperature detection position).
Select setting No. 03 (remote controller fixed).
(Use
and .)
and at the same time.
NO
Modes 01 to 14 can be activated
by pressing buttons
and
simultaneously, and modes 15 to
28 by pressing buttons
and .
YES
Change refrigerant
address or unit No.
Enter the setting.
(Press
.)
Example:
Selecting room temperature
detection position
NO
Finished
YES
End function display.
(Press
and at the same time.)
The above procedure must be carried out only if changes are necessary.
87
Page 88
[Operating Procedure]
Check the function selection settings.
Changing the function selection settings for each mode will change its relevant mode function. Perform steps through to check all the function selection settings,
and then change the settings as necessary.
For the initial settings, refer to the <Table 1> in the chapter 12-1. The following is the procedure to operate the remote controller internal sensor.
Turn off the remote controller.Set the outdoor address.
Hold down 2 buttons simultaneously for 2 seconds: the
and buttons to set the modes 01 through 14, and the
and buttons to set the modes 15 through 28.
FUNCTION
The “ ” will flash for a while and show “--” as below.
SELECTION
Refrigerant address
display section
FUNCTION
*If the and temperature displays flash “” for 2 seconds and stop flashing, this seems to be an error. Check for noise source or interference around the
SELECTION
transmission path.
Note: If the operation is made incorrectly before completion, finish operation by going to the step and restart from the step .
Press the [buttons ( and ) to select the desired
refrigerant address. The refrigerant address changes from "00" to "15".
(This operation is not possible for single refrigerant systems.)
CLOCK]
.
Set the indoor unit number.
Press the
area.
Confirm the refrigerant address and unit number.
Press the
number.
After a while, "- - " will start to blink in the mode number display area.
* "88" will blink in the room temperature display area if the selected refrigerant
address does not exist in the system.
Furthermore, if
refrigerant address display area also blinks, there are no units that correspond to the selected unit number. In this case, the refrigerant address and unit
number may be incorrect, so repeat steps and to set the correct ones.
When the refrigerant address and unit number are confirmed by pressing the
MODE
Select the mode number.
Press the [
number.
(Only the selectable mode numbers can be selected.)
Select the setting content for the selected mode.
Press the
blink, so check the currently set content.
ON/OFF
MODE
Mode number
display section
button, the corresponding indoor unit will start fan operation. This
TEMP] buttons ( and ) to set the desired mode
button so that "- -" blinks in the unit number display
Unit number
display section
button to confirm the refrigerant address and unit
"F"
appears and blinks in the unit number display area and the
button. The currently selected setting number will
MENU
Pr ess the but ton s( a nd )
No. in turn such as 00 → 02 → 03 → 04 → AL.
Select the unit No. to which the function selection applies.
* To set modes 01 to 06 or 15 to 22, select unit number "00".
* To set modes 07 to 14 or 23 to 28, carry out as follows:
• To set each indoor unit individually, select "01" to "04".
• To set all the indoor units collectively, select "AL".
helps you find the location of the indoor unit for which you want to perform function
selection. However, if "00" or "AL" is selected as the unit number, all the indoor
units corresponding to the specified refrigerant address will start fan operation.
Example) When the refrigerant address is set to 00 and the unit number is 02.
00 refrigerant address
Outdoor unit
Indoor unit
When grouping different refrigerant systems, if an indoor unit other than the
*
one to which the refrigerant address has been set to perform fan operation,
there may be another refrigerant address that is the same as the specified one.
In this case, check the DIP switch of the outdoor unit to see whether such a
refrigerant address exists.
Mode number
display section
Press the [
number.
Unit number 01
Confirm
TEMP] buttons ( and ) to select the desired setting
Remote controller
Mode number 02 = Indoor temperature detection
) to indicate the indoor unit
Unit number 02
Fan mode
Setting number display section
Register the settings you have made in steps to .
Press the
to blink and registration starts.
* If " - - - " is displayed for both the mode number and setting number and "
Check to see if there are any sources of noise or interference near the transmission path.
If you wish to continue to select other functions, repeat steps to .
Complete function selection.
Hold down the ( mode is 15 to 28) and buttons
simultaneously for at least 2 seconds.
After a while, the function selection screen will disappear and the air condi-
tioner OFF screen will reappear.
Note
If a function of an indoor unit is changed by function selection after installation is complete, make sure that a " " mark, etc. of Table 1 to indicate the change.
button. The mode number and setting number will start
MODE
FILTER
Setting number 1 = Indoor unit operating average
The mode number and setting number will stop blinking and remain lit, indicating the
end of registration.
" blinks in the room temperature display area, a transmission error may have occurred.
TEST
* Do not operate the remote controller for at least 30 seconds after completing
function selection. (No operations will be accepted even if they are made.)
Setting number 3 = Remote controller built-in sensor
88
Page 89
12-1-2. Selecting functions using the wireless remote controller (Type C)
Kmi
Functions can be selected with the wireless remote controller. Function selection using wireless remote controller is available only for refrigerant system with wireless function. Refrigerant address cannot be specified by the wireless remote controller.
[Flow of function selection procedure]
CHECK
SET
FAN
VAN E
LOUVER
RESET
TEMP
AUTO STOP
AUTO START
CLOCK
h
min
HOUR button
MINUTE button
ON/OFF button
Check button
ON/OFF
MODE
CHECK
TEST RUN
[Operating instructions]
1 Check the function settings.
2 Press the button twice continuously. CHECK is lit and “00” blinks.
Press the temp button once to set “50”. Direct the wireless remote controller toward the receiver of the indoor unit and press
the button.
CHEC
h
3 Set the unit number.
Press the temp button to set the unit number. (Press “01” to specify the indoor unit whose unit number is 01.)
Direct the wireless remote controller toward the receiver of the indoor unit and press the button.
By setting unit number with the button, specified indoor unit starts performing fan operation.
min
Detect which unit is assigned to which number using this function. If unit number is set to AL, all the indoor units in same
refrigerant system start performing fan operation simultaneously.
* If a unit number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Reenter the unit number
setting.
* If the signal was not received by the sensor, you will not hear a beep or a “double ping sound” may be heard. Reenter the unit number
setting.
4 Select a mode.
Press the temp button to set a mode. Press “24” to turn on the function that raises the set temperature by 4 degree
during heat operation. Direct the wireless remote controller toward the sensor of the indoor unit and press the button.
The sensor-operation indicator will blink and beeps will be heard to indicate the current setting number.
Current setting number: 1 = 1 beep (one second)
2 = 2 beeps (one second each)
3 = 3 beeps (one second each)
* If a mode number that cannot be recognized by the unit is entered, 3 beeps of 0.4 seconds will be heard. Reenter the mode
number.
* If the signal was not received by the sensor, you will not hear a beep or, a “double ping sound” may be heard. Reenter the mode
number.
5 Select the setting number.
Press the temp button to select the setting number. (02: Not available)
Direct the wireless remote controller toward the receiver of the indoor unit and press the button.
The sensor-operation indicator will blink and beeps will be heard to indicate the the setting number.
Setting number: 1 = 2 beeps (0.4 seconds each)
2 = 2 beeps (0.4 seconds each, repeated twice)
3 = 2 beeps (0.4 seconds each, repeated 3 times)
* If a setting number that cannot be recognized by the unit is entered, the setting will turn back to the original setting.
*
If the signal was not received by the sensor, you will not hear a beep or a “double ping sound” may be heard. Reenter the setting number.
6 Repeat steps 4 and 5 to make an additional setting without changing unit number.
7 Repeat steps 3 to 5 to change unit number and make function settings on it.
8 Complete the function settings.
Press button.
* Do not use the wireless remote controller for 30 seconds after completing the function setting.
Flow of function selection procedure
The flow of the function selection procedure is shown below. This example shows how to turn
off the function that raises the set temperature by 4 degrees during HEAT operation.
The procedure is given after the flow chart.
Check the function selection setting.
Switch to function selection mode.
(Enter address "50" in troubleshooting
mode, then press the HOUR button.)
Troubleshooting mode is the mode entered when
you press the CHECK button twice to display
"CHECK".
Specify unit No. "01" (since the function applies to unit 01).
(Set address "01" while still in troubleshooting mode, then press the MINUTE button.)
Note: You cannot specify the refrigerant address.
Select mode No. "24" (function that raises set temperature by 4 degrees during HEAT operation).
NO
(Set address "24" while still in troubleshooting mode, then press the HOUR button.)
Select setting No. "02" (OFF).
(Set address "02" while still in troubleshooting mode, then press the HOUR button.)
NO
Finished
YES
End function selection mode.
(End troubleshooting mode.)
Note: When you switch to function selection mode
on the wireless remote controller's operation
area, the unit ends function selection mode
automatically if nothing is input for 10 minutes
or longer.
n
h
h
YES
Change
unit No.
89
Page 90
12-2. FUNCTION SELECTION OF REMOTE CONTROLLER
The setting of the following remote controller functions can be changed using the remote controller function selection mode.
Change the setting when needed.
Item 1
1.Change language
("CHANGE LANGUAGE")
2.Function limit
("FUNCTION SELECTION")
3.Mode selection
("MODE SELECTION")
4.Display change
("DISP MODE SETTING")
Language setting to display
Operation function limit setting (operation lock) ("LOCKING FUNCTION")
(1)
(2)
Use of automatic mode setting ("SELECT AUTO MODE")
(3)
Temperature range limit setting ("LIMIT TEMP FUNCTION")
[Function selection flowchart] Refer to next page.
[1] Stop the air conditioner to start remote controller function selection mode. [2] Select from item1. [3] Select from item2. [4] Make the setting.
(Details are specified in item3) [5] Setting completed. [6] Change the display to the normal one. (End)
[Detailed setting]
[4] -1. CHANGE LANGUAGE setting
The language that appears on the dot display can be selected.
• Press the [
MENU] button to change the language.
Japanese (JP), English (GB), German (D), Spanish (E),
Russian (RU), Italian (I), Chinese (CH),
[4] -2. Function limit
(1) Operation function limit setting (operation lock)
• To switch the setting, press the [ ON/OFF] button.
no1 : Operation lock setting is made on all buttons other than
the [
ON/OFF] button.
no2 : Operation lock setting is made on all buttons.
OFF (Initial setting value) : Operation lock setting is not made
* To make the operation lock setting valid on the normal screen, it is
necessary to press buttons (Press and hold down the [FILTER]
and [ ON/OFF] buttons at the same time for 2 seconds.) on
the normal screen after the above setting is made..
(2) Use of automatic mode setting
When the remote controller is connected to the unit that has automatic operation mode, the following settings can be made.
• To switch the setting, press the [ ON/OFF] button.
ON (Initial setting value) : The automatic mode is displayed when
the operation mode is selected.
OFF: The automatic mode is not displayed
when the operation mode is selected.
(3) Temperature range limit setting
After this setting is made, the temperature can be changed within the
set range.
• To switch the setting, press the [ ON/OFF] button.
LIMIT TEMP COOL MODE :
The temperature range can be changed on cooling/dry mode.
LIMIT TEMP HEAT MODE :
The temperature range can be changed on heating mode.
LIMIT TEMP AUTO MODE :
The temperature range can be changed on automatic mode.
OFF (initial setting) : The temperature range limit is not active.
*
When the setting, other than OFF, is made, the temperature range limit setting
on cooling, heating and automatic mode is made at the same time. However
the range cannot be limited when the set temperature range has not changed.
•
To increase or decrease the temperature, press the [ TEMP ( ) or ( )] button.
•
To switch the upper limit setting and the lower limit setting, press the
button. The selected setting will flash and the temperature can be set.
Not necessary to set this mode. Refer to OPERATION MANUAL of
Optional Parts (Panel) for details on operation.
Fixed air flow direction mode
Not necessary to set this mode. Refer to OPERATION MANUAL of
indoor unit for details on operation.
The remote controller will be the main controller. (Initial setting value)
The remote controller will be the sub controller.
The clock function can be used. (Initial setting value)
The clock function cannot be used.
Weekly timer can be used. (Initial setting value)
Auto off timer can be used.
Simple timer can be used.
Timer mode cannot be used.
The set contact numbers are not displayed in case of error.
(Initial setting value)
The set contact numbers are displayed in case of error.
The temperature unit °C is used. (Initial setting value)
The temperature unit °F is used.
Room air temperature is displayed. (Initial setting value)
Room air temperature is not displayed.
One of “Automatic cooling” and “Automatic heating” is displayed
under the automatic mode is running. (Initial setting value)
Only “Automatic” is displayed under the automatic mode.
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13
MONITORING THE OPERA TION DA T A BY THE REMOTE CONTROLLER
13-1. HOW TO "MONITOR THE OPERATION DATA"
• Turn on the [Monitoring the operation data]
(3)
Example) Request code "004"
Discharge temperature 69
Refrigerant address "00"
(7)
(5)
(1)
(2)
(4)
(1) Press the
(2) Press the
Note)
Operating the service inspection monitor
- - - ] appears on the screen (at
[
(The display (at
(3) Press the [TEMP] buttons (
[Screen]
(4) Press the [CLOCK] buttons ( and ) to set the desired request code No.
(5) Press the
(The requested data will be displayed at in the same way as in maintenance mode.)
Data collected during operation of the remote controller will be displayed.
The collected data such as temperature data will not be updated automatically even if the data changes.
To display the updated data, carry out step (4) again.
TEST
CHECK
It is not possible to switch to [Maintenance monitor] during data request in maintenance mode (i.e., while "
since no buttons are operative.
FILTER
button for 3 seconds so that [ Maintenance mode] appears on the screen (at ).
button for 3 seconds to switch to [Maintenance monitor].
) when [Maintenance monitor] is activated.
) now allows you to set a request code No.)
and ) to select the desired refrigerant address.
button to perform data request.
(6)
A: Maintenance mode
B: Refrigerant address
C: Data display area
D: Request code display area
- - - -"
is blinking)
Canceling the Monitoring the operation data
(6) While [Maintenance monitor] is displayed, press the
(7) To return to normal mode, press the
ON/OFF
CHECK
button.
button for 3 seconds to return to maintenance mode.
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13-2. REQUEST CODE LIST
* Certain indoor/outdoor combinations do not have the request code function; therefore, no request codes are displayed.
Request content
Request code
Operation state
0
Compressor-Operating current (rms)
1
Compressor-Accumulated operating time
2
Compressor-Number of operation times
3
Discharge temperature (TH4)
4
Outdoor unit - Liquid pipe 1 temperature (TH3)
5
Outdoor unit - Liquid pipe 2 temperature
6
Outdoor unit-2-phase pipe temperature (TH6)
7
8
Outdoor unit-Suction pipe temperature (TH32)
Outdoor unit-Outside air temperature (TH7)
9
Outdoor unit-Heatsink temperature (TH8)
10
11
Discharge superheat (SHd)
12
Sub-cool (SC)
13
14
Pressure saturation temperature (T63HS)
15
Compressor-Operating frequency
16
Compressor-Target operating frequency
17
Outdoor unit-Fan output step
18
Outdoor unit-Fan 1 speed
19
(Only for air conditioners with DC fan motor)
Outdoor unit-Fan 2 speed
20
(Only for air conditioners with DC fan motor)
21
LEV (A) opening
22
LEV (B) opening
23
24
LEV (C) opening
Primary current
25
DC bus voltage
26
27
28
Number of connected indoor units
29
Indoor unit-Setting temperature
30
Indoor unit-Intake air temperature <Thermo judge temperature>
31
Indoor unit-Intake air temperature (Unit No. 1)
32
<Heat mode-4-deg correction>
Indoor unit-Intake air temperature (Unit No. 2)
33
<Heat mode-4-deg correction>
Indoor unit-Intake air temperature (Unit No. 3)
34
<Heat mode-4-deg correction>
Indoor unit-Intake air temperature (Unit No. 4)
35
<Heat mode-4-deg correction>
36
Indoor unit - Liquid pipe temperature (Unit No. 1)
37
Indoor unit - Liquid pipe temperature (Unit No. 2)
38
Indoor unit - Liquid pipe temperature (Unit No. 3)
39
Indoor unit - Liquid pipe temperature (Unit No. 4)
40
41
Indoor unit-Cond./Eva. pipe temperature (Unit No. 1)
42
Indoor unit-Cond./Eva. pipe temperature (Unit No. 2)
43
Indoor unit-Cond./Eva. pipe temperature (Unit No. 3)
44
Indoor unit-Cond./Eva. pipe temperature (Unit No. 4)
45
46
47
Thermostat ON operating time
48
Test run elapsed time
49
Description
(Display range)
Refer to 13-2-1. Detail Contents in Request Code.
0 – 50
0 – 9999
0 – 9999
3 – 217
-40 – 90
-40 – 90
-39 – 88
-39 – 88
-39 – 88
-40 – 200
0 – 255
0 – 130
-39 – 88
0– 255
0– 255
0– 10
0 – 9999
0 – 9999
0– 500
0– 500
0– 500
0– 50
180 – 370
0– 4
17 – 30
8– 39
8– 39
8– 39
8– 39
8– 39
-39 – 88
-39 – 88
-39 – 88
-39 – 88
-39 – 88
-39 – 88
-39 – 88
-39 – 88
0 – 999
0– 120
UnitRemarks
–
A
10 hours
100 times
Hz
Hz
Step
rpm
rpm
Pulses
Pulses
Pulses
A
V
Units
Minutes
Minutes
"0" is displayed if the air conditioner is a single-fan
type.
"0" is displayed if the target unit is not present.
is displayed if the target unit is not present.
"0"
is displayed if the target unit is not present.
"0"
Not possible to activate maintenance mode during the test run.
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Request content
Request code
Indoor unit-Control state
50
Outdoor unit-Control state
51
Compressor-Frequency control state
52
Outdoor unit-Fan control state
53
Actuator output state
54
Error content (U9)
55
56
57
58
59
Signal transmission demand capacity
60
Contact demand capacity
61
External input state (silent mode, etc.)
62
63
64
65
66
67
68
69
Outdoor unit-Capacity setting display
70
Outdoor unit-Setting information
71
72
Outdoor unit-SW1 setting information
73
Outdoor unit-SW2 setting information
74
75
Outdoor unit-SW4 setting information
76
Outdoor unit-SW5 setting information
77
Outdoor unit-SW6 setting information
78
Outdoor unit-SW7 setting information
79
Outdoor unit-SW8 setting information
80
Outdoor unit-SW9 setting information
81
Outdoor unit-SW10 setting information
82
83
M-NET adapter connection (presence/absence)
84
85
86
87
88
89
Display of execution of replace/wash operation
Outdoor unit-Microprocessor version information
90
Outdoor unit-Microprocessor version information (sub No.)
91
92
93
94
95
96
97
98
99
Outdoor unit - Error postponement history 1 (latest)
100
Outdoor unit - Error postponement history 2 (previous)
101
Outdoor unit - Error postponement history 3 (last but one)
This request code is not provided to collect data. It is used to fix the operation state.
This request code is not provided to collect data. It is used to fix the operation state.
This request code is not provided to collect data. It is used to cancel the operation state that has been
fixed by request codes "765" and "766".
UnitRemarks
1 hour
10 hours
For indoor fan phase control
–
For indoor fan pulsation control
–
For indoor DC brushless motor control
–
–
–
–
–
–
Ver
–
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13-2-1. Detail Contents in Request Code
[Operation state] (Request code ":0")
Data display
C4
Relay output state
Operation mode
Operation mode
DisplayOperation mode
0STOP • FAN
CCOOL • DRY
HHEAT
dDEFROST
[Indoor unit – Control state] (Request code :" 50 ")
Data display
Unit No. 4 state
Unit No. 3 state
Unit No. 2 state
Unit No. 1 state
Relay output state
Display
0
1
2
3
4
5
6
7
8
A
DisplayState
0Normal
1Preparing for heat operation
2–
3–
4Heater is ON.
5Anti-freeze protection is ON.
6Overheat protection is ON.
7Requesting compressor to turn OFF
FThere are no corresponding units.