Page 1
ORDER NO. MAC0210058C2
AIR CONDITIONER
CS-W50BB4P CU-V50BBP8
CS-W50BB4P CU-W50BBP8
CONTENTS
Page Page
1 SERVICE INFORMATION 3
2 FEATURES
3 SPECIFICATION (HEAT PUMP TYPE )
4 SPECIFICATION (COOLING ONLY TYPE )
5 TECHNICAL DRAWING
6 CIRCUIT DIAGRAM
7 OPERATING INSTRUCTION
8 REFRIGERATION CYCLE
9 OPERATION RANGE
10 PIPE LENGTH
11 OPERATIN G CHARACTERIS TIC 32
12 FAN PERFORMANCE
4
10
13 SAFETY DEVICE
11
14 COMPONE NT SPECIFICA TION
15 CAPACITY AND POWER CONSUMPTION
12
14
16 DISCHARG E AND SUCTION PRESSURE
26
17 SOUND DATA
18 TWIN AND TRIPLE
28
29
19 WIRING MISTAKE PREVENTI ON
30
© 2002 Matsushita Industrial Corporation. Sdn. Bhd.
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
33
34
35
36
38
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46
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20 TEST OPERATIO N AND SELF DIAGNOSI S 47
21 SETTING OF SAVE ENERGY AND THERMISTOR SWITCH
22 GROUP CONTROL
23 TROUBLE SHOOTING
24 EMERGEN CY OPERATIO N
25 CONTROL
51
52
53
58
59
26 WIRED REMOTE CONTROL INSTALLATION MANUAL
27 WIRELESS REMOTE CONTROL INSTALLATION MANUAL
28 INSTALLATION (INDOOR UNIT)
29 INSTALLATION (OUTDOOR UNIT)
30 REPLACEMENT PARTS
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91
103
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1 SERVICE INFORMATION
Caution:
O
Pb free solder has a higher melting point than standard solder; Typically the melting point is 50 - 70°F (30 - 40°C) higher. Please use
a high temperature soldering iron. In case of the soldering iron with temperature control, please set it to 700 ± 20°F (370 ± 10°C).
O
Pb free solder will tend to splash when heated too high (about 1100° F/600°C).
Notice of Address setting for NEW Cassette / NEW Outdoor Unit.
The new Cassette / new Outdoor models are possible to have address setting for twin / triple control or group control
automatically when main power supply is switched on.
(Manual address setting is also possible by using DSW1 switch on the indoor unit P.C. board.) However,
only possible when proper wiring connection is made and indoor unit must be of original unit
1.1. Example of trouble during test operation
If the below phenomenon is found during test operation, wrong address setting is possible.
Therefore, please inspect the address setting.
1. LCD display of the wired remote control is not illuminated although the main power supply switch is ‘on’.
2. LCD display had indicated as normal illumination when power supply switch is ‘on’, however outdoor unit cannot be operated.
(But, it is necessary to take 3 to 5 minutes for outdoor unit to start from the timing of remote control OFF/ON button is ‘on’.)
(For normal operation, the outdoor unit will only start its operation after 3 to 5 minutes upon pressing the OFF/ON button.)
3. P.C. board had memorized wrong setting information.
a. If main power supply is switched on with the wrong connection.
b. When changing the connection or combination of units due to re-installation etc.
•
•
When changing the system from twin to triple (triple to twin).
• •
•
•
When changing the system from group control to normal one to one system.
• •
•
•
When making the replacement of units of master and slave etc.
• •
this address setting is
.
1.2. Caution during test operation
Do not touch the remote control button and do not change any wirings for one minute when the main power supply switch is ‘on’.
(Because the unit is having automatic address setting during the first one minute.)
1.3. Caution during automatic address setting
When the main power supply switch is ‘on’, the P.C. board will automatically memorize the connecting system.
Consequently, when initial power supply is ‘on’, there mustn’t be any interchanging of units even of the same type and same
capacity unit.
Therefore, connection of the unit to another system is prohibited.
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2 FEATURES
2.1. Variety of excellent features
•
•
Compact design
• •
Compact design 290 mm height, 840 mm width and 840
mm depth.
•
•
Automatic restart function
• •
When the electric power resumes after a power failure, the
unit will automatically restarts the operation in the prefailure mode.
•
•
Auto fan mode (indoor unit)
• •
Auto fan mode is added besides HI, ME and LO.
It automatically adjusts the fan speed according to the
indoor temperature.
•
•
Dry mode function
• •
Dry mode can make a comfortable indoor environment
during wet season.
•
•
Quiet operation
• •
2.2. Low-noise outdoor units
The sound level is 50dB (A) for 50BB model during High
Fan speed and suitable for offices, shops, homes etc, when
quiet operation is essential.
•
•
Auto Swing Louvre
• •
The air flow angle can be changed automatically (or
manually) to an angle between 10° to 70° using the remote
control.
•
•
Low ambient cooling operation
• •
Cooling operation is possible at outdoor temperature of
-5°C.
•
•
Automatic changeover function (heat pump models)
• •
The unit automatically switches between cooling and
heating in accordance with operating load in order to
maintain a comfortable indoor temperature.
•
•
Hot start system (heat pump models)
• •
•
•
Pipes and drainage
• •
Built-in upward draining mechanism.
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2.2.1. Product features
•
•
Low-noise design improves comfort in surrounding
• •
areas
1. The noise-suppressing winglet fan is a result of new
research into vane design theory. The unique curved
shape suppresses the generation of vortexes, thus
reducing air flow noise.
2. The adoption of double-orifice rings reduces air
passage resistance.
3. Strengthening of the noise insulation materials in the
compressor and the sealing-in of mechanical noise
allows vibration noise to be greatly enclosed and
suppressed.
4. The heat exchanger has an L-shaped design to allow air
to flow more smoothly.
5. Noise is automatically reduced further during night-time
operation with lower outdoor air temperatures.
•
•
Additional refrigerant charging unnecessary for 30 m
• •
−
−
All models do not require any additional charging of
− −
refrigerant for 30 m of pipe length. This makes
installation much easier.
•
•
Drain water dripping-pre vention structure
• •
−
−
The base of the outdoor unit is provided with a single
− −
drain hole in order to prevent drain water from leaking
out of the unit. By connecting a drain elbow and a
discharge pipe, water leakages can be prevented even
when the unit is installed to a wall.
2.3. Greatly improved workability
increases system renewal
capability
•
•
Pipes that are one size larger can also be connected for
• •
renewal.
−
−
If renewing the system, existing refrigerant pipes can be
− −
utilized so that only the indoor and outdoor units need to
be replaced.
−
−
For example, liquid and gas pipes from 10 years ago
− −
can be connected to current pipes with the same size or
one size larger. Effective utilization of materials reduces
working time and trouble. (Adaptor sockets are not
supplied.)
•
•
Save space design allows units to be installed side-by-
• •
side continuously
−
−
Servicing after installation can be carried out by
− −
removing the front covers.
•
•
Long pipe design for refrigerant pipes
• •
−
−
Maximum piping length of 50m for all models.
− −
•
•
Internal pipe connection
• •
−
−
Pipes are connected inside the units (inside the side
− −
covers), making the final appearance more attractive.
−
−
Pipes can be diverted outward in any of four directions
− −
(forward, right, down, rear).
−
−
Small liquid pipe diameters of 9.52mm for 50BB models,
− −
making installation work much easier.
•
•
Centralized draining method
• •
−
−
Even when multiple outdoor units are installed to a wall,
− −
the drain outlets can be concentrated into a single drain
pipe. This makes installation easier and also improves
appearance.
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2.4. A brand-new control method
using the latest in technology
•
•
Easier power supply wiring connection
• •
Power supply wiring and other wiring tasks can be carried
out more easily.
−
−
Twin non-polar wires used to connect indoor and
− −
outdoor units.
−
−
Adoption of connection error prevention circuits for drive
− −
wires and signal wires. If a connection error is made, the
relay does not operate and current does not flow to the
circuit boards.
•
•
Twin and Triple operation
• •
−
−
Simultaneous air conditioning of wide spaces and
− −
corners is possible. Indoor units of different
horsepowers can even be used in combination.
−
−
Master unit and slave-units can be set automatically in
− −
twin and triple systems. No address setting is
necessary.
−
−
Multiple indoor units can be operated simultaneously
− −
with a single remote control. Note that individual
operation is not possible.
•
•
Separate indoor/outdoor unit power supplies
• •
The power supply can be connected to (1) just the outdoor
units, or (2) to both the indoor and outdoor units.
•
•
Easy test operation
• •
Test operation can be carried out for both indoor and
outdoor units.
•
•
Automatic setting initialization function
• •
and Indoor unit)
In accordance with the indoor and outdoor units connected
and the connection methods, conditions such as the
connection configuration (twin or triple format) and remote
control functions such as automatic louvre operation and
cooling or heating mode are automatically detected and set
instantly.
(Remote control
2.5. Wired Remote Control
•
•
The new design includes an easily-visible red pilot lamp.
• •
The power can be turned on and off at a single touch,
without opening the cover.
•
•
Has a built-in thermistor, allowing indoor temperature
• •
detection in accordance with indoor conditions by switching
with main unit thermistor.
•
•
Twin non-polar wires make installation work easy. (10 m
• •
cable supplied as accessory.)
2.6. Wireless Remote Control
•
•
New design with compact size. (Operation range within
• •
approximately 8 m.)
•
•
Built-in timer with ON/OFF timer setting (within 24 hours)
• •
Wired Wireless
Heat Pump CZ-RD51P CZ-RL51P
Cooling CZ-RD51P CZ-RL01P
NOTE: Both of the above remote control is packed separately
from the indoor unit.
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2.7. Group Control Equipment
2.8. New refrigerant Series [R407C]
pipe installation
2.8.1. Procedure
•
•
The new refrigerant (R407C) has a different composition to
• •
the previously-used refrigerant (R22), so some contents
and method of pipe installation and charging work are
different from before. Care should be taken when carrying
out this work.
2.8.2. Installation and precautions
2.8.2.1. Before installation
1. Determine the installation division.
2. Check the refrigerant to be used.
•
•
Check that the refrigerant is R407C.
• •
•
•
Check that the gauge pressure is at a maximum of 3.3
• •
MPa.
3. Make a drawing of the Installation.
2.8.2.2. Installation
1. Install the sleeve and the insert.
2. Install the indoor unit.
3. Install the refrigerant piping.
•
•
Pipe materials (Phosphours Deoxidization Seamless
• •
Pipe)
•
•
Refrigerant pipes which were previously used to carry
• •
R22 must not be re-used. If replacing the indoor and
outdoor units, be sure to replace all refrigerant pipes
also.
•
•
Check the pipe thickness.
• •
(1/4, 3/8, 1/2 : t = 0.8mm 5/8, 3/4 : t = 1.0mm)
•
•
Clean the inside of the pipes.
• •
•
•
When storing pipes, seal both ends of the pipes and
• •
store them indoors to prevent water, dust and other
foreign particles from getting inside.
•
•
Take care not to let any foreign particles (oxide scales,
• •
water or dirt) get inside the refrigerant lines (same as for
R22).
Q
Refrigerant pipe storing
Location Installation period Storing method
Outdoors 1 month or more Pinching
Less than 1 month Pinching or taping
Indoors Any
•
•
Pinching method
• •
Close off the ends of the pipes with pliers or similar tool
and seal the opening by brazing.
•
•
Taping method
• •
Wind PVC tape around the ends of the pipes to seal the
openings.
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•
•
Do not work for refrigerant piping on outdoor on rainy
• •
days.
•
•
Seal by brazing.
• •
•
•
Be sure to use only a non-oxidizing brazing material.
• •
(Use nitrogen. Anti-oxidants cannot be used.)
•
•
When brazing pipes together, or when brazing copper
• •
pipes and copper joints, use a brazing material (Bcup-3)
which does not require flux.
•
•
Flare processing and ester oil.
• •
•
•
Sealing can be improved by applying ester oil or mineral
• •
oil (the minimum amount necessary) to flares and flange
connections.
•
•
Due to the high hygroscopic tendency for ester oil, do
• •
not mix or use any other impurities. (This can cause
deterioration of the compressor oil and problems with
the compressor.)
•
•
After preparing the refrigerant pipes, close both ends of
• •
the pipes by brazing if not immediately connecting them.
•
•
A torque wrench must be used.
• •
4. Install the drain pipe.
5. Install the ducts.
6. Insulate against heat.
7. Carry out the electrical work.
•
•
Connecting cables and power cables.
• •
8. Make all necessary settings.
9. Prepare the outdoor unit foundation.
10. Install the outdoor unit.
11. Air-tightness test.
For the final check, there should be no pressure drop when
3.3 MPa is applied for 24 hours.
12. Vacuum drying.
Vacuum draw time 60 min. or more
* Vacuum pump capacity 60 l/min. or higher
•
•
Drawing the vacuum will remove any moisture.
• •
•
•
The pressure after vacuum drawing should be 755
• •
mmHg or less.
•
•
Use a special vacuum pump (with backflow-prevention
• •
mechanism).
•
•
Gas must never be used for air purging.
• •
13. Additional refrigerant charging.
•
•
Check that refrigerant volume is correct.
• •
•
•
Be sure to charge refrigerant in liquid state.
• •
•
•
Always charge in liquid state.
• •
When the refrigerant is charged from the cylinder, the
composition may change greatly (compounds which do
not easily evaporate may remain inside the cylinder), so
the refrigerant must always be charged in a liquid state.
(It is recommended that a manifold with sight glass be
used.)
Q
Boiling point at normal atmospheric pressure
(reference)
Refrigerant HFC32 HFC125 HFC134a
Boiling point -52°C -49°C -26°C
•
•
Use a special gauge manifold and charging hose.
• •
•
•
If refrigerant leaks occur, replace all of the refrigerant
• •
(same as for R22).
•
•
Note that a R22 leak detector cannot be use to detect
• •
leaks.
•
•
Refer to the Installation Instructions included for the
• •
correct charging amount.
•
•
Make a note of additional refrigerant charging amounts
• •
in the record table.
14. Test operation and adjustment.
15. Organize documentation before handover.
16. Handover and explanation of operation.
•
•
Ventilation of closed rooms
• •
R407C is a non-flammable refrigerant with low toxicity,
but in the gas state its specific gravity is heavier than
that of air, and so if leaks occur in a closed room,
suffocation may occur. Toxic gases may also be
generated if it comes into direct contact with flames, so
adequate ventilation must be provided.
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3 SPECIFICATION (HEAT PUMP TYPE )
CS-W50BB4P / CU-W50BBP8
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-W50BB4P CU-W50BBP8
Panel CZ-BT01P
Remote CZ-RD51P (Wired)
Control CZ-RL51P (Wireless)
Cooling Capacity kW 14.0
BTU/h 47,700
Heating Capacity kW 16.0
BTU/h 54,600
Refrigerant Charge-less m 30
Standard Air Volume for High Speed m3/min 31
cfm 1095
Outside Dimension (H x W x D) mm 290 x 840 x 840 1220 x 1100 x 320
inch 11-7/16 x 33-1/24 x 33-1/24 48-1/24 x 43-5/16 x 12-19/32
Net Weight kg 33 115
lbs 73 254
Piping
Connection
Compressor Type, Number of Set - Hermetic-1 (Scroll), 1
Fan Type, Number of Set Turbo fan Propeller fan
Air-heat Exchanger Slit-fin type X-Louvre-fin type
Refrigerant Control Cool Capillary tube -
Refrigerant Oil (Charged) litre - MMMPOE
Refrigerant (Charged) kg - R407C (4.4)
Running
Adjustment
Safety Devices Internal protector for compressor, Internal thermostat for fan motor,
Noise Level dB (A) Hi 50 Lo 45 Cooling 56, Heating 58
Refrigerant Gas mm (inch) O.D Ø 19.05 (3/4) Flared Type
Liquid mm (inch) O.D Ø 9.52 (3/8) Flared Type
Drain mm O.D Ø 32 I.D Ø 20 x 1
Starting Method - Direct on-line starting
Motor Type - 2-pole 3-phase induction motor
Rated Output kW - 4.10
Motor Type 6-pole single phase induction motor 6-pole single phase induction motor
Rated Output kW 0.095 0.055 x 2
Heat - Capillary tube
(oz) (155)
Control Switch Wireless or Wired Remote Control Room Temperature Thermostat (Main Body) -
Crankcase heater, High and heating pressure switch, Current transformer
Power level dB Cooling : Hi 65 Lo 60
Heating : Hi 65 Lo 60
Cooling 69, Heating 71
1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
2. Heating capacities are based on indoor temperature of 20°C D.B. (68°F D.B.) and outdoor air temperature of 7°C D.B.
(44.6°F D.B.), 6°C W.B. (42.8°F W.B.)
ELECTRICAL DATA (50Hz)
ITEM / MODEL CS-W50BB4P, CU-W50BBP8
Condition by JIS B 8615
Volts V 380 400 415
Phase 3N 3N 3N
Power Consumption kW Cool 5.35 5.35 5.35
Heat 5.45 5.45 5.45
Running Current A Cool 9.2 9.2 9.2
Heat 9.2 9.2 9.2
Starting Current A 69 69 69
Power Factor % Cool 88 84 81
Heat 90 86 82
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz
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4 SPECIFICATION (COOLING ONLY TYPE )
CS-W50BB4P / CU-V50BBP8
1. Cooling capacities are based on indoor temperature of 27°C D.B. (80.6°F D.B.), 19.0°C W.B. (66.2°F W.B.) and outdoor air
temperature of 35°C D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.)
ITEM / MODEL Indoor Unit Outdoor unit
Main Body CS-W50BB4P CU-V50BBP8
Panel CZ-BT01P
Remote CZ-RD51P (Wired)
Control CZ-RL01P (Wireless)
Cooling Capacity kW 14.0
BTU/h 47,700
Refrigerant Charge-less m 30
Standard Air Volume for High Speed m3/min 31
cfm 1095
Outside Dimension (H x W x D) mm 290 x 840 x 840 1220 x 1100 x 320
inch 11-7/16 x 33-1/24 x 33-1/24 48-1/24 x 43-5/16 x 12-19/32
Net Weight kg 33 112
lbs 73 245
Piping
Connection
Compressor Type, Number of Set - Hermetic-1 (Scroll), 1
Fan Type, Number of Set Turbo fan Propeller fan
Air-heat Exchanger Slit-fin type X-Louvre-fin type
Refrigerant Control Capillary tube Capillary tube
Refrigerant Oil (Charged) litre - MMMAPOE
Refrigerant (Charged) kg - R407C (4.4)
Running
Adjustment
Safety Devices Internal protector for compressor, Internal thermostat for fan motor,
Noise Level dB (A) Hi 50 Lo 45 56
Refrigerant Gas mm (inch) O.D Ø 19.05 (3/4) Flared Type
Liquid mm (inch) O.D Ø 9.52 (3/8) Flared Type
Drain mm O.D Ø 20 I.D Ø 20 x 1
Starting Method - Direct on-line starting
Motor Type - 2-pole 3-phase induction motor
Rated Output kW - 4.10
Motor Type 6-pole single phase induction motor 6-pole single phase induction motor
Rated Output kW 0.095 0.055 x 2
(oz) (155)
Control Switch Wireless or Wired Remote Control Room Temperature Thermostat (Main Body) -
Crankcase heater, High pressure switch, Current transformer
Power level dB Hi 65 Lo 60 69
ELECTRICAL DATA (50Hz)
ITEM / MODEL CS-W50BB4P, CU-V50BBP8
Condition by JIS B 8615
Volts V 380 400 415
Phase 3N 3N 3N
Power Consumption kW Cool 5.35 5.35 5.35
Running Current A Cool 9.2 9.2 9.2
Starting Current A 69 69 69
Power Factor % Cool 88 84 81
*Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor.
Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz
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5 TECHNICAL DRAWING
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13
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6 CIRCUIT DIAGRAM
1415161718192021222324
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7 OPERATING INSTRUCTION
7.1. Wired Remote Control (OPTIONAL PARTS)
NOTES:
•
•
Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.
• •
•
•
The illustration above is for explanatory purposes only. The appearance will be different during actual operation.
• •
•
•
Do not operate the remote control with wet hands. Otherwise, electric shock or malfunction may occur.
• •
•
•
Do not press the remote control buttons with sharp object as this may damage the remote control.
• •
•
•
Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same
• •
button once more to cancel the operation.
•
•
When the power resumed after power failure, the unit will restart automatically with all the previous settings preserved by the
• •
memory function. (Auto restart function)
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7.2. Wireless Remote Control (OPTIONAL PARTS)
NOTES:
•
•
Ensure that the correct button is pressed as simultaneous pressing of the multiple buttons will not make the setting correct.
• •
•
•
The illustration above is for explanatory purpose only. The appearance will be different during actual operation.
• •
•
•
If using the wireless remote control in conjunction with the wired remote control, the settings made from the wireless remote
• •
control will appear on the wired remote control display (except when making timer settings).
•
•
Buttons marked with * are not needed for normal operation. If one of these buttons is pressed by mistake, press the same
• •
button once more to cancel the operation.
•
•
When the power resumed after power failure, the unit will restart automatically with all previous settings preserved by the
• •
memory function. (Auto restart function)
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8 REFRIGERATION CYCLE
8.1. Heating Model
CS-W50BB4P / CU-W50BBP8
8.2. Cooling Only Model
CS-W50BB4P / CU-V50BBP8
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9 OPERATION RANGE
Power Supply
The applicable voltage range for each unit is given in the following table. The working voltage among the three phases must be
balanced within a 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of
the rated voltage.
Power Supply
MODEL Unit Main Power Applicable Voltage
CU- Phase, Volts Hz Max Min
W/V50BBP8 3N~380 50 418 342
3N~400 50 440 360
3N~415 50 457 374
Indoor and Outdoor Temperature
•
•
Cooling only type
• •
Model (50Hz) V50BBP8
Operating Hz Indoor Temp. (D.B./W.B.) (°C) Outdoor Temp. (D.B./W.B.) (°C)
Max Min Max Min
Cooling 50 32/23 21/15 43/- -5/-
•
•
Heat pump type
• •
Model (50Hz) W50BBP8
Operating Hz Indoor Temp. (D.B./W.B.) (°C) Outdoor Temp. (D.B./W.B.) (°C)
Cooling 50 32/23 21/15 43/- -5/Heating 50 27/- 16/- 24/18 -10/-
Max Min Max Min
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10 PIPE LENGTH
QQQQ
CORRECTION OF COOLING CAPACITY AND HEATING CAPACITIES
Correction of cooling and heating capacities according to the connecting pipe length.
The data of cooling capacities (marked on the name plate) are based on 7.5 meters connecting pipe and horizontal installation.
For other pipe length of other installation multiply by the following correction factor to determine the revised cooling capacity.
QQQQ
REFRIGERANT ADDITIONAL CHARGE
•
•
The piping length exceeds 30 metres.
• •
APPLICABLE FOR ALL MODE LS
Before shipment, this air conditioner is filled with the rated amount of refrigerant subject to 30m piping length. (The rated
amount of refrigerant is indicated on the name plate.) But when the piping length exceeds 30m, additional charge is required
according to the following table.
Outer diameter of gas side pipe mm (inch)
9.52 (3/8) 0.18
12.7 (1/2) 0.20
15.88 (5/8) 0.25
19.05 (3/4) 0.35
Model Ref. Charge
2.0~2.5HP 20g per 1m
3~6HP 50g per 1m
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QQQQ
REFRIGERANT ADDITIONAL CHARGE
Piping installation by standard piping
1.
•
•
At the time of shipment from the factory, this unit is charged with enough refrigerant for an equivalent pipe length of 30m.
• •
(Refer to the following table)
But when the piping length exceeds 30m, additional charge is required according to the following table.
Example:
CU-W50BBP8
In case of 50m long pipe (one way), the amount of refrigerant to be replenished is: (50 - 30) x 50 = 1,000g
Q
Cooling only type (50Hz)
Model Name Standard piping specification
CU- Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less length (m) Additional gas volume (g/m)
V50BBP8 9.52 19.05 30 50
Q
Heat pump type (50Hz)
Model Name Standard piping specification
CU- Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge- less length (m) Additional gas volume (g/m)
W50BBP8 9.52 19.05 30 50
Attention
•
•
Please do not decrease the gas piping size. (It causes the breakdown of the compressor).
• •
•
•
The equivalent piping length and the cooling and heating capacity change rate are same as the standard piping specification.
• •
31
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11 OPERATING CHARACTERISTIC
HEAT PUMP MODEL
Model Main Power Source Compressor Motor Indoor Unit
Voltage Frequency S.C. R.C. (A) IPT (kW) R.C. IPT R.C. IPT F.C. (A) IPT (kW)
(V) (Hz) (A) COOL /
HEAT
HEAT CS-W50BB4P 380 50 69 8.57 / 8.57 4.94 / 5.04 0.91 0.19 0.99 0.22 9.20 / 9.20 5.35 / 5.45
PUMP CU-W50BBP8 400 50 69 8.55 / 8.55 4.91 / 5.01 0.93 0.21 1.02 0.23 9.20 / 9.20 5.35 / 5.45
MODEL 415 50 69 8.53 / 8.53 4.88 / 4.98 0.96 0.22 1.04 0.25 9.20 / 9.20 5.35 / 5.45
COOL /
HEAT
Fan Motor
(A) (kW) (A) (kW) COOL /
COOLING ONLY MODEL
COOLING CS-W50BB4P 380 50 69 8.57 4.94 0.91 0.19 0.99 0.22 9.20 5.35
ONLY CU-V50BBP8 400 50 69 8.55 4.91 0.93 0.21 1.02 0.23 9.20 5.35
MODEL 415 50 69 8.53 4.88 0.96 0.22 1.04 0.25 9.20 5.35
Legend : S.C. = Starting Current, R.C. = Running Current, IPT = Power Consumption
Outdoor unit
Fan Motor
ELECTRICAL DATA
(50Hz)
HEAT
COOL /
HEAT
32
Page 33
12 FAN PERFORM ANCE
33
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13 SAFETY DEVICE
INDOOR UNIT
Heat pump model
Indoor unit CS-W50BB4P
Cooling only model
For Fan Motor Protection, OFF °C 135
Internal Protector (49F) ON °C 85
For Control Protection, Fuse CUT A 3.15
OUTDOOR UNIT
Outdoor Unit Heat pump model 50Hz CU-
Cooling
only
model 60Hz For Refrigerant Cycle, OFF MPa (*1) 3.1
High Pressure Switch (63H1) ON MPa (*1) 2.3
For OFF A 15
Compressor (Heat pump)
Over Current OFF A 15
Protection (Cooling only model) 50Hz
RESET - Automatic
Discharge Temp. Compressor °C 120
Protection, OFF
Discharge Temp.
Thermistor (Th1)
Liquid Compression Protection, Crankcase Heater Input power W 34~41
Compressor OFF °C 145
Protection, 50Hz
Internal °C Protector 60Hz
ON °C 50Hz 61
Trip time 50Hz 3-10sec/
For Fan Motor Protection, OFF °C 135
Internal Protector (49F) ON °C 85
Heating Pressure Switch (Heat OFF MPa (*1) 2.50
Pump Only) (Fan Speed) (63H2) ON MPa (*2) 2.05
Cooling Control, Control Th 30°C ----- High speed
Heat Exchanger method Th < 30°C ------5 speed step control
Outlet Temp.
Thermistor (Th2)
For Control Protection, Fuse CUT A 6.3
50Hz CU-
A -
60Hz
°C 60Hz -
60Hz -
W50BBP8
V50BBP8
48A
(*1) MPa = 10.2 kgf/cm2(*2) Head Thermostat only for CU-A28BBP8 / CU-C28BBP8
34
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14 COMPONENT SPECIFICATION
Compressor
Models Heat pump model 50Hz CU-W50BBP8
Cooling only 50Hz CU-V50BBP8
model
60Hz -
Compressor Model single-phase -
3-phase R68KCE-TFD
Compressor Type SCROLL
No. of Cylinders 1
Revolution r/min 2,900
Piston Diplacement m3/h 16.18
Motor Type Starting Method Direct on-line Starting
Rated Output kW 4.1
Poles 2
Insulation Class E
Oil Type MMMAPOE
Charge L 1.8
Evaporator
Models CS-W50BB4P
Tube Material Copper tube
Outer Diameter mm 7.0
Thickness mm 0.27
Row 3
No. of Tubes/Row 12
Fin Material Aluminium
Thickness mm 0.105
Fin Pitch NO./inch 19
Fin Surface Z Slit fin
Total Face Area m
Fan Type Turbo fan
No. of /Unit 1
Fan Motor Starting Method Direct on-line Starting
Rated Output kW 0.095
Poles 6
Phase Single-Phase
Insulation Class E
2
0.464
Condenser
Models Heat pump model CU-W50BBP8
Cooling only model CU-V50SBBP8
Tube Material Copper tube
Outer Diameter mm 9.52
Thickness mm 0.3
Row 2
No. of Tubes/Row 46
Fin Material Aluminium
Thickness mm 0.105
Fin Pitch NO./inch 14
Fin Surface X-Louvre fin
Total Face Area m
Fan Type Propeller Fan
No.of /Unit 2
Fan Starting Method Direct on-line Starting
Motor Rated Output kW 0.055 x 2
Poles 6
Phase Single-Phase
Insulation Class E
2
1.05
35
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15 CAPACITY AND POWER CONSUMP TION
15.1. HEATING PERFORMANCE
Model Heating capacities are based on conditions below.
CS-W50BB4P
CU-W50BBP8
Heating capacity 14.0 kW
External Static Presser
(Pa) Air Volume (m
31m3/min 20 11.04 4.03 13.20 4.63 16.0 5.45 19.2 6.32
H.C.= Heating Capacity
IPT= Power Consumption
Inlet Air Outdoor Temperature(°C W.B.T.)
/min)
Entering Air
D.B.T. (°C)
3
O 3 phase, 50Hz, 400V
O Indoor temperature 20°C D.B.T.
O Outdoor temperature 7°C D.B. 6°C W.B.T.
O Standard air volume 31m
-6°C 0°C 6°C 12°C
H.C. IPT H.C. IPT H.C. IPT H.C. IPT
15 11.68 3.82 14.00 4.36 16.8 5.18 19.5 6.10
25 10.40 4.25 12.48 4.91 15.2 5.72 18.4 6.52
3
/min
36
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15.2. COOLING PERFORMANCE
CS-W50BB4P
Model Cooling capacities are based on conditions below.
CS-W50BB4P
Cooling capacity 14.0 kW
Cooling capacity Cooling power consumption
Indoor Air Temp. Outdoor Temperature (°C D.B.T.) Indoor Air Temp. Outdoor Temperature (°C D.B.T.)
25 30 35 40 43 25 30 35 40 43
TC TC TC TC TC IPT IPT IPT IPT IPT
D.B.T W.B.T kW kW kW kW kW D.B.T. W.B.T. kW kW kW kW kW
17 14.57 14.00 13.17 12.18 11.47 17 4.26 4.61 5.02 5.51 5.84
23 19 15.39 14.91 14.15 13.19 12.52 23 19 4.51 4.89 5.33 5.84 6.19
22 16.81 16.36 15.61 14.60 13.91 22 4.88 5.28 5.75 6.31 6.69
17 14.40 13.84 13.04 12.09 11.41 17 4.26 4.61 5.01 5.48 5.80
25 19 15.41 14.88 14.07 13.11 12.42 25 19 4.54 4.90 5.34 5.83 6.18
22 16.80 16.29 15.49 14.43 13.78 22 4.90 5.29 5.76 6.29 6.67
17 14.22 13.68 12.91 12.00 11.36 17 4.27 4.60 5.01 5.44 5.77
27 19 15.43 14.84 14.00 13.02 12.32 27 19 4.56 4.92 6.35 5.82 6.16
22 16.79 16.22 15.37 14.28 13.65 22 4.93 5.31 5.78 6.28 6.66
17 14.19 13.68 12.88 12.10 11.50 17 4.24 4.59 4.95 5.31 5.54
29 19 15.40 14.84 14.01 13.12 12.47 29 19 4.53 4.91 5.29 5.68 5.92
22 16.72 16.15 15.27 14.30 13.64 22 5.00 5.40 5.82 6.25 6.51
17 14.17 13.69 11.97 12.16 11.59 17 4.23 4.58 4.91 5.23 5.38
32 19 15.37 14.84 14.01 13.19 12.57 32 19 4.52 4.90 5.24 5.58 5.75
22 16.67 16.10 15.26 14.31 13.64 22 5.04 5.47 5.85 6.23 6.57
O 3 phase, 50Hz, 400V
O Indoor temperature 27°C D.B.T., 19°C W.B.T.
O Outdoor temperature 35°C D.B.T.
O Standard air volume 31m
3
/min
37
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16 DISCHARGE AND SUCTION PRESSURE
16.1. SATURATION TEMPERATURE OF DISCHARGE AND SUCTION
PRESSURE
OOOO
Commonness TO ALL THE MODELS
OOOO
SATURATION TEMPERATURE OF DISCHARGE AND SUCTION PRESSURE
For intake temperature, consult the pressure - Enthalpy Table (R407C) at the end.
*
38
Page 39
17 SOUND DATA
39
Page 40
40
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18 TWIN AND TRIPLE
18.1. Twin and Triple Operation
•
•
Simultaneous air conditioning of wide spaces and corners is
• •
possible. Indoor units with different horsepowers can even
be used in combination.
•
•
Master unit and slave-units can be set automatically in twin
• •
and triple systems. No address setting is necessary.
•
•
Multiple indoor units can be operated simultaneously with a
• •
single remote control unit. Note that individual operation is
not possible.
18.1.1. Twin and triple operation setting
•
•
The master unit and slave units are set automatically when
• •
the power is turned on. At this time, the indoor unit which is
connected to the remote control unit becom es the master
unit.
(If automatic setting is not possible, carry out the settings
manually.)
•
•
No distinction is made between master unit and slave units
• •
(slave unit 1 and slave unit 2) at the indoor unit or remote
control.
•
•
Install the remote control to the master unit. (It cannot be
• •
connected to slave units.)
If indoor unit models with louvres and models without
louvres have been connected together, use an indoor unit
with louvres as the master unit.
•
•
The remote control termostat can also be set.
• •
•
•
Optional circuit boards can only be installed to the master
• •
unit.
•
•
Setting the master unit and slave units can also be carried
• •
out manually by using DIP switches. However, manual
settings will always take priority. If you have made manual
settings but would like to return to using automatic settings,
set all slave unit DIP switches (refer to the table below) to
the OFF position, and then press the ADDRESS RESET
button on the outdoor unit (SW3 on the outdoor unit printed
circuit board).
(Do not mix manual settings and automatic settings.)
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18.1.2. Automatic address setting for twin
and triple systems
Procedure: Turn on the power supply for the indoor
and outdoor units.
Operation: Automatic address setting will start 10 to
30 seconds after the power supply is
turned on, and will be completed after
about 1 minute.
If the power supplies for the indoor unit and outdoor unit cannot be
turned on at the same time, turn on the power supply for the outdoor
unit, the indoor unit which is connected to the remote control, and then
the other indoor units in that order.
If the order of turning on the power supply is incorrect, the master unit
setting may overlap. In such a case, turn on the power supplies for all
units in the correct order as given above, or carry out a twin/triple
automatic address reset (press dip switch 3 on the outdoor unit
continuously for 4 seconds or longer).
•
•
The indoor unit which is connected to the remote control will
• •
have priority for becoming the master unit.
•
•
The master unit thermostat will be used as the indoor
• •
temperature thermostat. If the master unit thermostat is
turned on, the slave unit thermostats cannot be adjusted
even if they happen to be on.
•
•
If address setting using the DIP switches is carried out after
• •
automatic address setting has been carried out, use DIP
switch No. 3 (SW3) on the outdoor unit to carry out
automatic address resetting.
•
•
If you would like to designate a particular indoor unit as the
• •
master unit because no master unit has been set, use the
DIP switches on the slave units to make setting.
If automatic address setting is carried out once and then the slave unit
address are set, the address will then be stored inside the EEPROM.
Thus it is not necessary to repeat automatic address setting if the
power is turned off and back on again.
18.1.3. DIP switch settings for twin/triple
slave unit addresses
Procedure: Turn off the power supply, and then set
DIP switch 1-8 to ON.
The unit will become slave unit 1.
(Set DIP switches 1-1 and 1-8 both to
ON.
The unit will become slave unit 2.)
Turn on the power supply.
Operation: The unit will operate as slave unit 1.
Automatic address setting is not carried
out at this time.
If the setting is made while the power is still turned on, it is easier to
mis-combine the setting with group settings. So, the setting should be
made while the power is turned off.
•
•
Only slave unit addresses can be set in this way. Master
• •
unit setting is not possible.
•
•
If you make the DIP switch settings after the power has
• •
been turned on, carry out twin/triple automatic address
resetting.
•
•
Be sure to set DIP switch 1-8 to ON when setting twin/triple
• •
addresses. If DIP switch 1-1 is set to ON without setting 18 to ON, group addresses will be set instead, and the
remote control open circuit error code (F26) will be
displayed.
18.1.4. Automatic address resetting for
twin/triple systems
•
Function:
Procedure: Press the ADDRESS RESET button SW3
Operations: The outdoor unit will reset the addresses
If an indoor unit has had its address set by the DIP switch (DIP switch
1-8 is ON), or if the remote control unit is connected to one of the
indoor unit, then the addresses for those indoor units cannot be reset.
•
This reset the current twin/triple
• •
addresses which have been set
automatically, and result in the
reoccurance of automatic twin/triple
address settings.
(push button switch) on the outdoor unit
circuit board continuously until LEDs 2 to
8 on the outdoor unit circuit board are all
illuminated (takes approximately 3.5
seconds).
for the indoor units which it is connected
to, and will send an instruction to carry
out automatic address setting again. If
the indoor unit DIP switch have not been
manually set for twin/triple address
setting, the indoor units receive this
command and clear their existing settings
and carry out automatic address setting.
42
Page 43
•
•
•
The indoor units will not run for approximately 1 minute
• •
while automatic twin/triple address resetting is being carried
•
Do not turn off the power supply for at least 1 minute after
• •
automatic twin/triple address resetting has been carried out.
out.
18.2. Piping connections
•
•
The following table shows the pipe diameters for a twin-type system.
• •
Outdoor unit main pipe diameter (mm) Indoor unit combinations
3HP Indoor unit capacity (HP) 1.5 1.5
Liquid side: ø 9.52 Branch pipe
Gas side: ø 15.88 Gas side ø 12.7 ø 12.7
4HP Indoor unit capacity (HP) 2.0 2.0 1.5 2.5
Liquid side: ø 9.52 Branch pipe
Gas side: ø 19.05 Gas side ø 12.7 ø 12.7 ø 12.7 ø 15.88
5HP Indoor unit capacity (HP) 2.5 2.5 2.0 3.0
Liquid side: ø 9.52 Branch pipe
Gas side: ø 19.05 Gas side ø 15.88 ø 15.88 ø 12.7 ø 15.88
6HP Indoor unit capacity (HP) 3.0 3.0 2.0 4.0
Liquid side: ø 9.52 Branch pipe
Gas side: ø 19.05 Gas side ø 15.88 ø 15.88 ø 12.7 ø 19.05
•
•
The following table shows the pipe diameters for a triple-type system.
• •
Outdoor unit main pipe diameter (mm) Indoor unit combinations
6HP Indoor unit capacity (HP) 2.0 2.0 2.0 1.5 1.5 3.0
Liquid side: ø 9.52 Branch pipe
Gas side: ø 19.05 Gas side ø 12.7 ø 12.7 ø 12.7 ø 12.7 ø 12.7 ø 15.88
diameter
diameter
diameter
diameter
diameter
Liquid side ø 6.35 ø 6.35
Liquid side ø 6.35 ø 6.35 ø 6.35 ø 6.35
Liquid side ø 6.35 ø 6.35 ø 6.35 ø 9.52
Liquid side ø 9.52 ø 9.52 ø 6.35 ø 9.52
Liquid side ø 6.35 ø 6.35 ø 6.35 ø 6.35 ø 6.35 ø 9.52
•
•
The following table shows the equivalent pipe lengths and height differences for twin- and triple-type systems.
• •
Equivalent length L + la + lb + lc Within 50 m
Branch pipe diameter la, lb, (lc) Within 15 m
Branch pipe difference la - lb, lb - (lc), la - (lc) Within 10 m
Height difference H1 Within 30 m Height difference between indoor units H2 Within 1 m
Note:
1. Use the main pipe to gain any rise or fall required for the pipes.
2. The number of bends should be 8 or less in a single system (L + la, L + lb, L + lc), and 15 or less overall.
3. Branch pipes should be position horizontally.
•
•
The branch pipe shoud be horizontal to or perpendicular to the indoor unit.
• •
43
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18.3. Refrigerant charging
•
•
For twin and triple-type systems
• •
The pipe length is the total of the branch pipe (L) and the junction pipes (la→lb→lc in order from the thickest diameter). At
the point where the pipe length exceeds 30 m, determine the amount of refrigerant for the remaining liquid-side pipe diameters
and pipe lengths from the following table in order to charge the system.
44
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18.4. Wiring
45
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19 WIRING MISTAKE PREVENT ION
Improved quality of installation work through adoption of an “Connection error prevention” circuit which prevents wiring
mistakes
Connection errors with the control wires and the power supply wires will not only contribute to burning-out of the control circuit
board, but can also cause large-scale working losses and affect reliability. If a circuit board with a “Connection error prevention”
circuit is used, the relay will not operate if the wires have been connected incorrectly, so that current will not flow to the control
circuit board. This is designed principally to conpensate human error during installation.
Prevention of connection errors
These units are equipped with connection error prevention circuits. If the units do not operate, it is possible that the connection error
prevention circuits have been operated. In such cases, check that the power supply wires (connected to terminals 1
the control wires (connected to terminals 3
correctly. Normal operation should then commence.
•
•
Do not short the remote control wires to each other. (The protection circuit will be activated and the units will not operate.) Once
• •
the cause of the short is eliminated, normal operation will then be possible.
NOTE:
•
•
Wait one minute after turning on the indoor unit power supply before operating the remote control.
• •
•
•
If nothing at all appears in the remote control LCD, check the power supply for the indoor unit.
• •
Refer to “TROUBLESHOOTING” chapter.
and 4 ) are connected correctly. If they are connected incorrectly, connect them
and 2 and
NOTE:
Do not allow any of the following connection, as such connection may damage the printed circuit board.
•
•
Do not connect anything except a relay to the timer input or fan speed output (connector CNT1 on printed circuit board).
• •
•
•
Do not connect U-NET transmission wires to terminals 3 and 4 of the indoor and outdoor units. (*1)
• •
•
•
Do not connect U-NET transmission wires to terminals A and B of the remote control.
• •
(1*) U-NET transmission wires are the communication wires used for the central control.
46
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20 TEST OPERATION AND SELF DIAGNOSIS
20.1. Test operation
•
•
Always use a properly-insulated tool to operate the switch
• •
on the circuit board. (Do not use your finger or any metallic
object).
•
•
Never turn on the power supply until all installation work has
• •
been completed.
•
•
Turn on the circuit breaker before test operation extends
• •
past 12 hours.
(The crankcase heater will be energized, which will warm
the compressor and prevent liquid compression.)
•
•
For three-phase models, check that the phase is not
• •
reversed.
(If the phase is reversed, the LED on the printed circuit
board will flash.)
•
•
Check that the voltage is 198 V or higher when starting the
• •
unit. (The unit will not operate if the voltage is less than
198V.)
•
•
Carry out test operation for 5 minutes or more, using the
• •
remote control or the switch on the outdoor unit printed
circuit board.
•
•
Always carry out cooling operation first during test
• •
operation, even during the warm season.
(If heating is carried out first, problems with operation of the
compressor will result.)
20.2. Test operation from the
outdoor unit
20.3. Test operation using the wired
remote control
1. Check that “COOL” is displayed on the operation mode
display, and then press the OFF/ON button to start test
operation.
2. Within 1 minute of pressing the OFF/ON button, press the
TEST RUN button.
3. The pipe temperature (gas pipe) will then be displayed in
the temperature setting display of the remote control.
During outdoor unit emergency operation or test operation, the
LEDs on the printed circuit board will flash.
To cancel test operation, press the TEST RUN button once
more while test operation is being carried out.
(Test operation will stop automatically after 30 minutes have
passed.)
•
•
During group control, the number appearing in the timer
• •
display will change each time the air conditioner No.
button is pressed, and the pipe temperature for the
indoor unit corresponding to the number displayed will
appear in the temperature setting display.
4. Check that the temperature in the pipe temperature display
starts dropping after operation has been continuing for
some time.
47
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20.4. Test operation using the
wireless remote control
<Air conditioner No.>
−
−
The air conditioner No. “01” appears during normal
− −
installation and use. When using group control, a
different number may appear. The air conditioner No.
can be displayed by pressing the air conditioner No.
button.
1. Within 1 minute of pressing the OFF/ON button, press to
cooling operation and then press the TEST RUN button.
•
•
If more than 1 minute passes, test operation cannot be
• •
started. In this case, press the OFF/ON button once
more to repeat the operation.
•
•
Use the OPERATION button to change the operation.
• •
The current operation mode will appear in the operation
mode display.
2. When test operation starts, “TEST RUN” will appear in the
timer display of the LCD, and operation will be carried out in
accordance with the operation mode display (COOL or
HEAT) appearing at that time.
However, the number in the temperature setting display will
not change.
(Cancelling test operation)
•
•
Press the OFF/ON button, the TEMP (UP/DOWN) button,
• •
the OPERATION button, the FAN SPEED button or the
TEST RUN button to cancel test operation.
20.5. Self-diagnosis function
•
•
The wired remote control display and the self-diagnosis
• •
LEDs (red) on the outdoor unit printed circuit board indicate
where the abnormality has occurred.
•
•
Recalling the error display.
• •
When an abnormality occurs at this unit, “CHECK” flashes
in the display.
Press the CHECK button while the display is flashing.
The timer display will change and an error code from F15 to
F49 will appear in place of the time. (The temperature
setting display will also change to show the air conditioner
No.)
Press the TIMER SELECT/SET button while the error is
displayed.
The F15 - F49 display will change to the detail display.
•
•
After checking the error display and the detail display, refer
• •
to the self-diagnosis error code table on the following page
and check the location of the problem.
•
•
If the problem is repaired and operation returns to normal,
• •
the CHECK display on the remote control will be eliminated,
but the self-diagnosis LED will remain illuminated until the
operation starts again.
48
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How to display the past error message
If the “CHECK” display on the wired remote control is not
flashing, press the CHECK button continuously for 5 seconds
or more to display the problem details for the last problem or
the problem before that. You can then switch between the
displays for the previous problem and the problem before that
by pressing the TIMER FORWARD or BACK buttons.
(Last problem display: 1F15 - 1F49
Second-last problem display: 2F15 - 2F49)
Press the CHECK button once more to return to the normal
display.
An error code from 1F15 to 1F49 will be displayed.
(The temperature setting display will also change to show the
air conditioner No.)
If the TIMER SELECT/SET button is pressed while the error
code from 1F15 to 1F49 is being displayed, the display screen
will change to show the details of the last problem display.
(If 2F15 to 2F49 is being displayed, the details of the secondlast problem display will appear.)
49
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50
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21 SETTING OF SAVE ENERGY AND THERMIST OR SWITCH
21.1. Energy save setting
•
•
Upper and lower limit can be set for the setting temperature
• •
during cooling and heating operation. (The factory shipment
setting has an upper limit of 31°C and a lower limit of 16°C.)
1. While operation is stopped, press the TEMP UP and TEMP
DOWN buttons simultaneously.
21.2. Switching to the remote
control thermistor
•
•
The temperature detection thermistor used for detecting the
• •
indoor temperature can be switched between the thermistor
at the indoor unit and the thermistor at the remote control
unit. (The factory shipment setting is at the indoor unit side.)
2. To set an upper limit
Press the OPERATION button until HEAT is displayed.
↓
Press the TEMP UP or TEMP DOWN button to set the
temperature.
↓
Press the SET button to complete the upper limit setting.
Example:
If the heating display is set to 28°C, setting the temperature
to higher than 28°C will not be possible.
* Upper and lower limits cannot be set at the same time.
3. To set a lower limit
Press the OPERATION button until COOL is displayed.
↓
Press the TEMP UP or TEMP DOWN button to set the
temperature.
↓
Press the SET button to complete the lower limit setting.
Example:
If the cooling display is set to 22°C, setting the temperature
to lower than 22°C will not be possible.
* Press the CANCEL button to cancel the setting.
1. While operation is stopped, press and hold the TEST RUN
button, TEMP UP button and TEMP DOWN button
simultaneously.
Press the FORWARD or BACK timer button to change the
temperature detection setting.
2. Press the SET button to complete the setting.
To change the setting, repeat the above operation.
51
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22 GROUP CONTROL
Setting group for 1 remote control unit
•
•
When using a remote control thermostat, the thermostat
• •
setting is used for all indoor units in the group.
•
•
During group control, up to a maximum of 16 indoor units
• •
can be connected. (Do not mix heat pump units and
cooling-only units.)
•
•
Do not mix manual settings and automatic settings. (Manual
• •
settings take priority.)
•
•
The master unit and slave units can be centralized
• •
controlled during group control.
Automatic setting for group control
•
•
If the power supplies for indoor units which are connected
• •
are turned on simultaneously, the indoor unit numbers will
be determined automatically after approximately 1 minute.
(DIP switch settings are not necessary.)
NOTE:
•
•
Correct wiring connections are a basic requirement for
• •
automatic setting. If the wires are connected incorrectly
when the power is turned on, the settings will not be made
correctly and operation will not be possible.
•
•
When address numbers are set automatically, you will not
• •
know which address number corresponds to which indoor
unit.
•
•
Do not turn off the power supply for at least 1 minute during
• •
automatic address setting, otherwise the settings will not be
made correctly.
Automatic address resetting for group control
Set the DIP switches 1 to 4 to OFF and stop the operation.
Then press the “AIR SWING AUTO”, “OPERATION” and “Air
conditioner No.” buttons simultaneously. Then addresses will
be momentarily reset, and then automatic address setting will
be carried out once more.
Note with regard to the Mini-cassette
When carrying out group control of a Mini-cassette system
using a single wireless remote control, be sure to disconnect
the connectors for all receptor circuit boards except the one for
indoor unit. No. 1, before turning on the power. (The same
action as for the slave units in twin and triple systems is
necessary.)
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23 TROUBLESHOOTING
If test operation does not proceed correctly
Carry out test operation after approximately 12 hours have passed
since the power was turned on (crankcase heater is energized). If
operation is started by using the remote control within 1 minute of
turning on the power, the outdoor unit settings will not be made
correctly and correct operation will not be possible.
If the following symptoms occur after turning on the power,
check the wiring connections once more.
•
•
For standard installation
• •
(System example)
section C)
Symptom:
Remote control unit... Display of “No power supply”
NOTE:
Indoor unit... LED1 on printed circuit board stays
illuminated
Outdoor unit... LED1 on printed circuit board stays
illuminated
(When remote control display shows “Power supply”)
(When remote control display shows “No power supply”)
1. The main power is turned on while the indoor-outdoor
transmission wires are not connected (open circuit at
section A)
Symptom:
Remote control unit... “CHECK” flashes
NOTE:
Indoor unit... LED2 on printed circuit board flashes
Outdoor unit... LED3 and LED7 on printed circuit board
flash
2. The main power is turned on while the indoor-outdoor
power supply wires are not connected (open circuit at
section B)
Symptom:
Remote control unit... Display of “No power supply”
NOTE:
Indoor unit... No display
Outdoor unit... LED3 and LED7 on printed circuit board
flash
3. The main power is turned on while the remote control
unit connection cord is not connected (open circuit at
Remedy
1. Turn off the main power.
↓
2. Connect the disconnected wire correctly.
↓
3. Turn on the main power.
↓
4. After 1 minute, start the operation using the remote
control.
(Indoor unit operation will start according to the remote
control setting.)
(Outdoor unit operation will start after 3-5 minutes.)
NOTE:
The “CHECK” display on the remote control and the
flashing of LEDs on the printed circuit boards will not occur
immediately. They will appear 3-6 minutes after the main
power is turned on.
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1. The main power is turned on while the transmission
wires between the indoor unit(s) are not connected
(open circuit at section A)
Symptom:
Nothing abnormal appears on the remote control
display. If operation is started in this condition, the
combination of the 50BB outdoor unit and the 14BB4
indoor unit (master unit) will result in abnormal
operation.
↓
If operation continues, an abnormality will occur on the
refrigeration cycle and operation will stop.
−
−
Remote control... “CHECK” flashes
− −
−
−
Indoor unit (master)... The LEDs on the printed
− −
circuit board flash and operation stops
−
−
Indoor unit (slave)... LED1 on the printed circuit
− −
board illuminates and the unit does not operate at all
−
−
Outdoor unit... The LEDs on the printed circuit board
− −
flash and operation stops
2. The main power is turned on while the power supply
wires between the indoor unit(s) are not connected
(open circuit at section B)
Symptom:
Same as above. If operation continues, an abnormality
will occur on the refrigeration cycle and operation will
stop.
↓
−
−
Remote control... “CHECK” flashes
− −
−
−
Indoor unit (master)... The LEDs on the printed
− −
circuit board flash
−
−
Indoor unit (slave)... The LEDs on the printed circuit
− −
board do not illuminate and the unit does not
operate at all
−
−
Outdoor unit... The LEDs on the printed circuit board
− −
flash and operation stops
3. The main power is turned on while the remote control
connection cord is not connected (open circuit at section
C)
Symptom:
−
−
Remote control unit.. . Display of “No power supply”
− −
−
−
Indoor unit (master)... LED1 on the printed circuit
− −
board stays illuminated and the unit does not
operate
−
−
Indoor unit (slave)... LED1 on the printed circuit
− −
board stays illuminated and the unit does not
operate
−
−
Outdoor unit... LED1 on the printed circuit board
− −
stays illuminated and the unit does not operate
Remedy
1. Turn off the main power.
↓
2. Connect the disconnected wires correctly.
↓
3. Turn on the main power.
↓
4. After 1 minute, start the operation using the remote
control.
(Indoor units’ operation will start according to the remote
control setting.)
(Outdoor unit operation will start after 3-5 minutes.)
If slave units do not operate even after the wiring has been
corrected (automatic addressing is not possible)
1. Check that DIP switches 1 to 4 and DIP switch 8 are all
set to OFF, and then stop operation.
↓
2. Press the ADDRESS RESET button (SW3) at the
outdoor unit for approximately 4 seconds
(The self-diagnosis LEDs 2 to 8 will illuminate in order,
and the system is reset once they are all illuminated.)
The above procedure cannot be used to carry out automatic
address resetting during group control.
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1. The main power is turned on while the transmission
wires between the indoor unit and the outdoor unit are
not connected (open circuit at section A)
Symptom:
Operation of indoor unit No. 1 and indoor unit No. 3 is
possible.
However, “CHECK” flashes in the remote control display
for 3-5 minutes after the main power is turned on.
−
−
Remote control... “CHECK” flashes
− −
−
−
Indoor unit No. 2... LED2 on the printed circuit board
− −
flashes (both master and slave units)
−
−
Outdoor unit No. 2... LED3 and LED7 on the printed
− −
circuit board flash
2. The main power is turned on while the power supply
wires between the indoor units are not connected (open
circuit at section B)
Symptom:
Operation of indoor unit No. 1 and indoor unit No. 3 is
possible
However, if operation is then started in this condition,
the combination of the 28BB outdoor unit and the
14BB4 indoor unit (master unit) will result in abnorm al
operation of indoor unit No. 2.
↓
If operation continues, an abnormality will occur on the
refrigeration cycle and operation will stop
−
−
Remote control... “CHECK” flashes (indoor unit No.
− −
2 abnormality)
−
−
Indoor unit No. 2... LED2 on the printed circuit board
− −
flashes (both master and slave units)
−
−
Outdoor unit No. 2... The LEDs on the printed circuit
− −
board flash
3. The main power is turned on while the remote control
connection cord is not connected (open circuit at section
C)
Symptom:
Nothing abnormal appears on the remote control
display, and operation of indoor unit. No. 1 and indoor
unit No. 2 is possible.
However, indoor unit No. 3 cannot be operated.
•
•
Remedy
• •
1. Turn off the main power.
↓
2. Connect the disconnected wires correctly.
↓
3. Turn on the main power.
↓
4. After 1 minute, start the operation using the remote
control.
(Indoor units’ operation will start according to the remote
control setting.)
(Outdoor units’ operation will start after 3-5 minutes.)
If slave units do not operate even after the wiring has been
corrected (automatic addressing is not possible)
1. Check that DIP switches 1 to 4 and DIP switch 8 are all
set to OFF, and then stop operation.
↓
2. Press the “AIR SWING AUTO”, “OPERATION” and “A/C
No.” buttons simultaneously.
The addresses will be momentarily reset, and then
automatic address setting will be carried out once more.
The above procedure cannot be used to carry out automatic
address resetting of twin/triple control.
(Note on automatic address setting)
The printed circuit boards automatically store the connected
system configuration when power is supplied. As a result,
once the power has been turned on for these printed circuit
boards, the units can not be changed about within the
system, even if the units are of the same model and have
same capacity.
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1. Automatic address setting (don’t need to set dip-switch)
If the wiring is connected properly as above example, the
address is set automatically by the main power supply. An
indoor unit with remote control will be set as the master. If
the power source is installed to indoor units and outdoor
units separately, turn on the switch by following the
procedure: outdoor unit, then indoor unit with control, and
finally other indoor units.
When the slave units do not operate (when address cannot
be set)
Reset the address by following the procedure:
a. After making sure that dip-switches No. 1 to 4 and No.
8 are OFF, stop the operation.
b. Push address reset button (SW3) on the outdoor unit
PC board for 4 seconds. Self-diagnosis LED No. 2 to 8
will start blinking in order. And when all 7 pieces of LEDs
(No. 2 ~ 8) are illuminated, the address for the slave unit
has been reset.
Important: The address for the group control cannot be
reset, using the above mentioned procedure.
2. Manual address setting (by dip-switch DSW1)
When setting the address manually, set the dip-switch of
the PC board of the indoor unit as follows:
1. Automatic address setting (don’t need to set dip-switch)
If the wiring is connected properly as above example, the
AC numbers are set automatically by the main power
supply. An indoor unit with remote control will be set as the
master.
If the power source is installed to indoor units and outdoor
units separately, turn on the switch by following the
procedure: outdoor unit, then indoor unit with control, and
finally other indoor units. The AC number will be set at
random.
When the slave units do not operate (when address cannot
be set)
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Reset the address by following the procedure:
a. Make sure that dip-switches No. 1 to 4 and No. 8 are
OFF, stop the operation.
b. Simultaneously, push buttons “AIR SWING AUTO”,
“OPERATION” and “A/C No.”. The address will be reset
and new address will be set.
Important: The address for the Twin/Triple control cannot
be reset, using the above mentioned
procedure.
2. Manual address setting (by dip-switch DSW1)
When setting the address manually, set the dip-switch of
the PC board of the indoor unit as follows:
Procedures of deleting memory for twin/triple control
system
1. Switch off the main power supply.
2. Set the No. 8 pin of dip switch (DSW1) at the indoor unit’s
P.C. board to “ON” position.
3. Switch on the main power supply for a minute and then turn
it off.
4. Set the No. 8 pin of dip switch (DSW1) to “OFF” position.
Procedures of deleting memory for group control system
1. Switch off the main power supply.
2. Set the No. 1 until No. 4 pin of dip switch (DSW1) at the
indoor unit’s P.C. board to “ON” position.
(Make sure No. 8 pin of dip switch (DSW1) is at “OFF”
position)
3. Switch on the main power supply for a minute and then turn
it off.
4. Set the No. 1 pin until No. 4 pin of dip switch (DSW1) to
“OFF” position.
(Important notice)
Above procedures are meant for deleting memory on indoor
unit’s P.C. board. And it is not for Address reset.
Indoor unit P.C. board layout
Below drawing shows the location of dip switch 1 (DSW1) on
the indoor unit P.C. board.
3. Manual address setting (by dip-switch DSW1)
When setting the address manually, set the dip-switch of
the PC board in the indoor unit as follows:
Dip switch 1 (DSW1). [to be used for manual setting]
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24 EMERGENCY OPERATION
Emergency operation
•
•
Emergency operation of outdoor unit
• •
Emergency operation can be carried out by setting the
DSW1 switch on the printed circuit board of the outdoor
unit to the EMERGENCY position. However, emergency
operation is only carried out when an abnormality is
detected by the indoor/outdoor temperature thermistors.
The resistance values of each thermistor are measured
as shown in the table below to determine if there is an
abnormality.
Thermistor resistance table
Temperature Resistance value (kΩ)±5%
Room temperature
thermistor
-20°C 205.8 197.8
-10°C 114.6 111.9
-5°C 87.3 85.4
0°C 67.0 65.8
5°C 51.8 51.0
10°C 40.4 39.9
15°C 31.7 30.7
20°C 25.1 25.0
25°C 20.0 20.0
30°C 16.1 16.0
40°C 10.4 10.6
50°C 6.9 7.1
60°C 4.7 4.9
70°C ---- 3.5
80°C ---- 2.5
90°C ---- 1.8
100°C ---- 1.4
Pipe temperature
thermistor
The pipe temperature thermistor resistance value are
the same for the indoor and outdoor units.
<When a thermistor abnormality is judged to have
occurred>
−
−
Set only the thermistor which shows an abnormality
− −
to the condition as shown in the table below to carry
out emergency operation.
Thermistor Cooling mode Heating mode
Indoor unit Room temperature Fixed at 25°C
Pipe temperature Shorted Open
Thermistor Cooling mode Heating mode
Outdoor unit Discharge temperature Open Shorted
Heat exchanger outlet
temperature
−
−
Refer to the circuit diagram for the connection
− −
Shorted Open
locations for each thermistor.
−
−
If there is an abnormality in the room temperature
− −
thermistor, the temperature will be fixed at 25°C
regardless of the remote control display.
NOTE:
−
−
Any abnormalities detected by the temperature
− −
thermistors are ignored during emergency operation,
therefore, long-term operation in this mode should
be avoided.
−
−
After emergency mode operation has been
− −
completed and normal operation is to be resumed,
turn off the power supplies for the indoor and
outdoor units and set the DSW1 switch to NORMAL
position.
−
−
Self-diagnosis LEDs 4 to 6 will flash during
− −
emergency operation.
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25 CONTROL
Description of basic Functions
25.1. Cooling mode operation time chart
(*1)
Outdoor unit fan start control during cooling
At the start of cooling mode and drying mode operation, the outdoor unit heat exchanger outlet temperature is detected in order
to set the fan speed.
Operation is carried out at the fan speed detected for 30 seconds.
After 30 seconds, the heat exchanger outlet temperature is detected and the outdoor unit fan speed is changed automatically.
(*2)
Cooling low outdoor temperature protection
When the outlet temperature of the heat exchanger drops to less than 12°C for a continuous period of 10 minutes, the outdoor unit
stops.
This is cancelled after 3 minutes (re-start prevention)
•
•
Remote control displays and indoor unit operation continue during this time.
• •
•
•
The 10 minutes countdown is cleared if the compressor stops or if the temperature at the outdoor unit outlet rises to 13.5°C or
• •
higher.
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25.2. Drain pump control
1. Basic operation
During cooling mode, dry mode or defrost mode operation, the drain pump turns on when the compressor turns on. (The drain
pump turns on during freezing prevention control.)
•
•
When the compressor turns off, the drain pump will still continue its operation for 6 more minutes.
• •
•
•
If the drain pump is running when operation stops or when the operating mode is changed, the drain pump will still continue
• •
its operation for 6 more minutes.
2. Drain water problems
a. Starting
If it is detected that the float switch is off, the drain pump turns on for 5 minutes. If the float switch is still found to be off after
these 5 minutes have passed, or if the float switch is found to turn off twice during another 30 minutes period, a drain water
error will be generated.
b. Normal operation
After extension control (louvre initialization and pre-heating cancel), the indoor units and outdoor units stop running. LED2
on the indoor unit self-diagnosis LED panel will flash, and “CHECK” will appear on the wired remote control display.
The error code (F15-01) can be displayed by pressing the CHECK button.
When the wireless remote control is being used, the OPERATION indicator on the ray receiver will flash.
<If the float switch does not operate again after turning off>
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(When float switch is continuously off)
<If the float switch operates again after turning off>
<If the float switch continues to be off>
25.3. Freezing prevention control
1. Operation
During cooling mode operation, after 9 minutes have passed since the compressor turned on, the outdoor unit will stop its
operation when the temperature detected by the indoor unit pipe temperature sensor is 2°C or lower.
The indoor unit continues operating at the fan speed set by the remote control. (The remote control display does not change.)
2. Cancelling
This control is cancelled when the temperature detected by the indoor unit pipe temperature sensor is 15°C or higher, however
3 minutes waiting of prevention control is necessary.
(The 9 minutes countdown is cleared while the compressor is stopped.)
(The above illustration only shows the operation stops due to freezing prevention control of the indoor pipe temperature sensor.)
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25.4. Heating mode operation time chart (Heat pump type)
(*2)
Outdoor unit fan control during heating mode operation
When the compressor is on during heating mode operation (except during defrosting and when the liquid bypass valve is on), the
outdoor unit fan is controlled by means of input (CN2) indicating whether the contact of the heating pressure switch on the outdoor
unit circuit board is open or closed.
(At the start of heating mode operation, the fan operates at HI speed.)
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25.5. Hot starting
1. When heating mode operation starts
a. Start
Hot start control commences when heating mode operation starts.
b. Operation
“PREHEAT” appears on the remote control display. (Other displays remain unchanged.)
The indoor unit fan stops. In addition, during hot starting, the louvre stays at the horizontal position (angle 0°).
c. Cancelling
Hot starting will be cancelled when the compressor is turned on or the indoor unit pipe temperature sensor is 18°C or higher
or after 1 minute of operation.
After cancellation, the “PREHEAT” display on the remote control disappears and the louvre operation returns to the previous
setting.
(However, for 2 minutes after cancellation, the indoor unit fan operates at LOW speed, and then returns to the previous
setting.)
<When hot start operation is cancelled by temperature>
<When hot start operation is cancelled by time>
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2. When defrosting is completed
a. Start
Hot start control commences when defrosting is completed.
b. Operation
“PREHEAT” appears on the remote control display. (Other displays remain unchanged)
The indoor unit fan stops. In addition, during hot starting, the louvre stays at the horizontal position (angle 0°C).
c. Cancelling
Hot starting will be cancelled when the temperature detected by the indoor unit pipe temperature sensor is 18°C or higher,
or after a maximum 1 minute has passed since defrosting was completed.
After cancellation, the “PREHEAT” display on the remote control disappears and the louvre operation returns to the previous
setting.
(However, the indoor unit fan operates at LOW speed for 2 minutes after cancellation, and then returns to the previous
setting.)
<When hot start operation is cancelled by temperature>
<When hot start operation is cancelled by time>
25.6. Indoor unit fan control when thermostat is off during heating mode
operation
When the thermostat of the indoor unit turns off during heating mode operation, the indoor unit fan operates for 2 minutes at LOW
and then stops. In addition, 5 minutes after the thermostat of the indoor unit turns off, the indoor unit fan operates at LOW for 10
seconds, and at 3 minutes interval after that, it switches back to LOW operation for another 10 seconds.
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25.7. Excess heat dissipation for indoor unit
The indoor unit fan continue its operation for 30 seconds after heating mode operation turns off in order to dissipate excess heat.
1. When heating mode operation has stopped
(LOW speed for 30 seconds)
2. When operation is set to a mode other than heating by means of the OPERATION button
3. If operation starts again during the 30 seconds mentioned at (1)
(The fan operates at LOW speed for the remainder of the 30 seconds and then hot start commences.)
25.8. Defrost mode operation time chart
1. Start and completion of defrosting
a. Start
During heating mode operation (including automatic heating), after the 45 minutes of defrosting cycle time has passed,
defrosting starts if the temperature detected by the outdoor unit heat exchanger outlet sensor is 2°C or lower continuously
for 5 minutes.
However, if the outdoor unit fan is stopped, the start of defrosting will be delayed by 5 minutes.
Then, the defrosting cycle will be 50 minutes from the start of heating mode operation.
b. Completion
Defrosting mode operation will stop if the outdoor unit heat exchanger outlet sensor is 25°C or higher or after 12 minutes
of operation.
c. Forced defrosting
If P8 on the outdoor unit circuit board is shorted while the compressor is on during heating mode operation and the
temperature detected by the outdoor unit heat exchanger outlet sensor is 25°C or lower, defrosting is carried out regardless
of the current starting conditions.
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2. Operation
a. During defrosting, the outdoor unit turns on the compressor and turns off the outdoor unit fan and the reversing valve.
b. The indoor unit fan operates at LOW speed for 30 seconds upon defrosting starts, After this, the indoor unit fan turns off until
defrosting is completed.
(During defrosting, the louvre of the indoor unit stays at horizontal position).
25.9. Indoor thermostat characteristics
1. Thermostat characteristics during cooling and heating modes.
Operation mode Setting temperature (To) Room temperature (°C)
Operation Differential
2.0K 4.0K
Cooling 16 ON 18.0 ____
OFF 16.0 ____
31 ON 33.0 ____
OFF 31.0 ____
Heating *1 16 ON 18.0 20.0
OFF 20.0 22.0
29~31 ON 31.0 31.0
*1 (27~31) OFF 33.0 33.0
1* If jumper wire J3 on the indoor unit circuit board is disconnected, the thermostat characteristics
during heating become 2K or higher.
NOTE: If the remote control display setting temperature (To) is 29°C or higher, the heating thermostat turns
on when the room temperature is 31°C.
2. Thermostat characteristics during dry mode.
During dry mode operation, cooling mode operation is carried out in accordance with the indoor temperature as shown in the
table below.
* When modes (2) and (3) are active, dry mode operation starts when the cooling thermostat turns on.
When modes (2) and (3) have been stopped, the 10 min./5 min. times have no relevance. However, if the indoor temperature
is less than or equal to the remote control unit setting temperature, mode (4) is forcibly activated.
3. Thermostat characteristics during automatic changeover operation
a. Settings at the start of automatic changeover operation
When operation changes from other modes to automatic changeover mode, operation starts at the temperature
characteristics given in the table below.
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b. Thermostat characteristic when switching between cooling and heating mode operation
Switching between cooling mode and heating mode operation is carried out as shown in the table below.
However, during automatic changeover operation, the operation will not change within 10 minutes after the thermostat has
switched off, either cooling mode or heating mode.
(The 10 minutes timer will be cancelled when operation is changed to other modes (manually) or when operation stops and
the thermostat turns on.)
c. Thermostat characteristics during cooling mode and heating operation
The thermostat on/off characteristics in both operation modes are given in the table below.
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25.10. Indoor unit fan control
1. Fixing at LO, MED or HI
When LO, MED or HI is set, the relay switches and operation is carried out at that setting.
2. Automatic fan speed
When set to AUTO, the indoor unit fan operation changes as shown in the table below.
(Indoor temperature) - (Setting temperature) (Units: K)
Mode / Fan Speed HI MED LO
Cooling +3 or higher +1.5 ~ 3 Less than +1.5
Heating -3 or lower -1.6 ~ - 3 More than -1.5
Fan MED irrespective of temperature
25.11. Forced operation during restart
The compressor will not stop operating for 3 minutes after cooling mode operation starts, even if the indoor unit thermostat turns
off.
(However, the compressor will stop operating during this time if the indoor unit air intake temperature drops to 16°C and below
during cooling mode operation.)
25.12. Louvre control (models with louvre)
1. When main power is turned on
When the power is turned on, indoor unit louvre position detection is carried out twice and then the indoor unit louvre stops.
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2. During initial operation
When the OFF/ON button is pressed to start the operation, the louvre moves through one full cycle, and then swings
automatically (if AUTO has been set using the remote control) or moves to the setting angle (if MANUAL has been set using
the remote control).
3. When operation stops
When the OFF/ON button is pressed to stop the operation, the louvre moves through one full cycle, and then stops in the down
position, regardless of the remote control setting.
4. When thermostat is off
When operation is stopped by the indoor thermostat, the louvre moves through one full cycle, and then stops in the horizontal
position, regardless of the remote control setting.
25.13. Outdoor unit fan excess heat dissipation control
1. When the operation is stopped while the compressor is in operation, the outdoor fan will run at SUPER HI fan speed for
approximately 60 seconds and then stops.
25.14. Discharge temperature control
1. Operation
When the discharge temperature sensor detects a temperature of 100°C or higher during cooling mode operation, the liquid
bypass valve will be turned on.
2. Cancelling
When the discharge temperature sensor detects a temperature of 70°C or lower, the liquid bypass valve will be turned off.
25.15. Emergency operation
When the emergency operation switch (DSW1) on the outdoor unit printed circuit board is set to emergency, the emergency
operation is enabled. This allows normal operation to continue, with all abnormalities other than a discharge temperature
abnormality, high pressure abnormality or overcurrent abnormality being ignored.
25.16. DIP switch settings
•
•
Indoor unit printed circuit board (DSW1)
• •
No. Setting type Factory shipment Remarks
1 Group address setting
(twin/triple address setting)
2 OFF
3 OFF
4 OFF
5 Automatic restart ON When set toON, operation after a power outage resumes at the settings which were
6 Filter sign time OFF When set to ON, the filter sign times can be set to 2,500 times.
7 Louvre control ON When set to OFF, louvre control is disabled.
8 Twin/triple slave unit setting OFF When set to ON, the unit is designated as a slave unit.
OFF When group operation is being carried out using the remote control, this address is
set in order to control the order of starting for the indoor units. (If No. 8 is ON,
twin/triple address setting is carried out.)
in effect before the outage. (The backup time is semipermanent.)
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26 WIRED REMOTE CONTROL INSTALLATION MANUAL
7071727374
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27 WIRELESS REMOTE CONTROL INSTALLATION MANUAL
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28 INSTALLATION (INDOOR UNIT)
828384858687888990
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29 INSTALLATION (OUTDOOR UNIT)
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