1 SERVICE INFORMATION Notice of Address setting for NEW Cassette / NEW Outdoor Unit. The new Ceiling / New Outdoor models are possible to have address setting for twin / triple control or group control by automatic when main power supply is switched on. (Manual address setting is also possible by using Dip switch on Indoor unit P.C.
2 FEATURES 2.1. Variety of excellent features 2.1.5. Quiet operation 2.1.1. Compact design • • • • The sound level is as low as 42db (A) for 3 HP model and • • • • The height is only 29cm (2.5 HP model and 3 HP model) suitable for offices, shops, homes etc., where quiet and can be installed even where the space is limited.
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2.2. New low-noise outdoor units [Product features] 2. The adoption of double-orifice rings reduces air passage resistance. 2.2.1. Low-noise design improves in 3. Strengthening of the noise insulation materials in the surrounding areas compressor and the sealing-in of mechanical noise allows vibration noise to be greatly enclosed and suppressed.
2.3.6. Long pipe design 2.3.1. Pipes that are one size larger can also be connected for renewal Max piping length: 50 (m) 24BB~43BB Height difference/equivalent pipe length 30/50 • • • • If renewing the system, existing refrigerant pipes can be utilized so that only the indoor units need to be replaced.
2.4.2. Separate indoor/outdoor unit 2.4.3. Automatic setting initialization power supplies function (Remote control and Indoor unit) The power supply can be connected to (1) just the outdoor units, or (2) to both indoor and outdoor units. In accordance with the indoor and outdoor units connected and the connection methods, conditions such as the configuration (twin or triple format) and remote-control functions such as cooling only or heat pump model are automatically detected...
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• • • • When storing pipes, seal both ends of the pipes and 6. Insulate against heat. store them indoors to prevent water, dust and other 7. Carry out the electrical work. foreign particles from getting inside. • • • • Connecting cables and power cables. •...
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14. Test operation and adjustment. but in the gas state its specific gravity is heavier than that of air, and so if leaks occur in a closed room, 15. Organize documentation before handover. suffocation may occur. Toxic gases may also be 16.
3 SPECIFICATION (HEAT PUMP TYPE) 3.1. CS-W24BD2P / CU-W24BBP5 ITEM / MODEL Indoor Unit Outdoor unit Main Body CS-W24BD2P CU-W24BBP5 Cooling Capacity 6.30 (BTU/h) (21,500) Heating Capacity 7.10 (BTU/h) (24,200) Refrigerant Charge-less Standard Air Volume for High Speed /min Hi 18...
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D.B. (95°F D.B.), 24°C W.B. (75.2°F W.B.) 2. Heating capacities are based on indoor temp. 20°C D.B. (68.0°F D.B.) and outdoor air temp. 7°C D.B. (44.6°F D.B.), 6°C W.B. (42.8°F D.B.) ELECTRICAL DATA (50Hz) MODEL / ITEM CS-W24BD2P/CU-W28BBP5 Condition by JIS B 8615 Volts Phase Single...
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Cool 2.72 2.72 2.72 Heat 2.86 2.86 2.86 Running Current Cool Heat Starting Current Power Factor Cool Heat *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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Cool 3.88 3.88 3.88 Heat 4.07 4.07 4.07 Running Current Cool Heat Starting Current Power Factor Cool Heat *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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Cool 4.49 4.49 4.49 Heat 4.66 4.66 4.66 Running Current Cool Heat Starting Current Power Factor Cool Heat *Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor. Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz...
4 SPECIFICATION (COOLING ONLY TYPE) 4.1. CS-W24BD2P / CU-V24BBP5 ITEM / MODEL Indoor Unit Outdoor unit Main Body CS-W24BD2P CU-V24BBP5 Cooling Capacity 6.30 (BTU/h) (21,500) Refrigerant Charge-less Standard Air Volume for High Speed /min Hi 18 Hi 636 External Static Pressure...
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4.2. CS-W24BD2P / CU-V24BBP8 ITEM / MODEL Indoor Unit Outdoor unit Main Body CS-W24BD2P CU-V24BBP8 Cooling Capacity 6.30 (BTU/h) (21,500) Refrigerant Charge-less Standard Air Volume for High Speed /min Hi 18 Hi 636 External Static Pressure mmAq Hi 10 Hi 98...
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Single Input Power Cool 2.86 2.86 2.86 Running Current Cool 13.1 12.5 12.5 Starting Current Power Factor Cool *Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor. Panasonic Power source AC, 1~220V, 230V, 240V 50Hz...
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Phase Input Power Cool 2.72 2.72 2.72 Running Current Cool 4.60 4.60 4.60 Starting Current Power Factor Cool *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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Condition by JIS B 8615 Volts Phase Input Power Cool 3.88 3.88 3.88 Running Current Cool Starting Current Power Factor Cool *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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Condition by JIS B 8615 Volts Phase Input Power Cool 4.49 4.49 4.49 Running Current Cool Starting Current Power Factor Cool *Power Factor means total figure of compressor, indoor fan motor and outdoor fan motor. Panasonic Power source AC, 3N~380V, 400V, 415V 50Hz...
9 OPERATION RANGE The applicable voltage range for each unit is given in “the following table”. The working voltage among the three phases must be balanced within 3% deviation from each voltage at the compressor terminals. The starting voltage must be higher than 85% of the rated voltage.
ELO: equivalent length of oil trap. 2.5HP 20g per 1m 3~5HP 50g per 1m Example: CS-W24BD2P 10.2. REFRIGERANT ADDITIONAL In case of 30 m long pipe (one-way), the CHARGE amount of refrigerant to be replenished is: (30 - 30) x 20 = 0g •...
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10.3. Piping installation by existing piping Cooling only type (50Hz) Model Name Standard piping specification Liquid piping (dia.mm) Gas piping (dia.mm) Gas charge-less length Additional gas volume (g/m) CU-V24BBP5 6.35 15.88 CU-V24BBP8 6.35 15.88 CU-V28BBP5 9.52 15.88 CU-V28BBP8 9.52 15.88 CU-V34BBP8 9.52 19.05...
13 SAFETY DEVICE • • • • INDOOR UNIT Indoor unit Model W24BD3P W24BD3P W28BD3P W28BD3P W34BD3P W43BD3P For fan motor protection Internal °C Protector (49F) °C For control protection Fuse 3.15 3.15 3.15 3.15 • • • • OUTDOOR UNIT Outdoor unit Heat 50Hz...
15 CAPACITY AND POWER CONSUMPTION PERFORMANCE DATA COOLING PERFORMANCE Model Cooling capacities are based conditions CS-W24BD2P Indoor temp. 27°C D.B. 19°C W.B. Outdoor temp. 35°C D.B. Standard air volume 18 m /min Cooling capacity External Static Pressure (98Pa) 6.3kW Entering Temperature Air Entering Condenser (°C D.B.)
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Model Cooling capacities are based conditions CS-W34BD2P Indoor temp. 27°C D.B. 19°C W.B. Outdoor temp. 35°C D.B. Standard air volume 33 m /min Cooling capacity External Static Pressure (147Pa) 10.0kW Entering Temperature Air Entering Condenser (°C D.B.) 25°C 30°C 35°C 40°C 43°C Temperature...
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HEATING PERFORMANCE Model Heating capacities are based conditions CS-W24BD2P Indoor temp. 20°C D.B. Outdoor temp. 7°C D.B. 6°C W.B. Standard air volume 18 m /min Heating capacity External Static Pressure (98Pa) 7.1kW Inlet Air Outdoor Temperature (°C W.B.) External Static Pressure (Pa) Entering Air -6°C...
16 DISCHARGE AND SUCTION PRESSURE 16.1. SATURATION TEMPERATURE OF DISCHARGE AND SUCTION PRESSURE Commonness TO ALL THE MODELS SATURATION TEMPERATURE OF DISCHARGE AND SUCTION PRESSURE * For intake temperature, consult the pressure - Enthalpy Table (R407C) at the end.
18 TWIN OPERATION 18.1. TWIN 18.1.1. Operation • • • • Simultaneous air conditioning of wide spaces and corners is possible. • • • • Master units and slave-units can be set automatically in twin and triple systems. No address setting is necessary. •...
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Automatic address setting for twin system 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.
Automatic address resetting for twin systems Function • • • • This clears the current twin addresses which have been set automatically, and causes automatic twin address setting to be carried out once more. Procedure: Press the ADDRESS RESET switch SW3 (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 approx.
• • • • The branch pipe should be horizontal to or perpendicular to the indoor unit. • • • • Installing branch pipes 18.3. Refrigerant charging • • • • For twin systems The pipe length is the total of the branch pipe (L) and the junction pipes (Ia→t Ib→t Ic 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.
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18.4. Wiring When both indoor and outdoor unit draw power (Example: 3 Phase power supply model) When only the outdoor unit draws power...
19 WIRING MISTAKE PREVENTION 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.
20 TEST OPERATION AND SELF DIAGNOSIS 20.1. Test operation (If the phase is reversed, the LED on the printed circuit board will flash.) • • • • Always be sure to use a properly-insulated tool to operate • • • • Check that the voltage is 198 V or higher when starting the the switch on the circuit board.
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20.3. Test operation using the wired remote control...
21 SETTING OF SAVE ENERGY AND THERMISTOR SWITCH 21.1. Energy save setting Open the cover remote control unit and confirm the presence of the [RP1] marking. Energy save setting method should be different for with [RP1] marking and without [RP1] marking.
22 GROUP CONTROL 1 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.) •...
23 TROUBLE SHOOTING If test operation does not proceed correctly Symptom: Remote control unit... Display of “No power supply” Carry out test operation after approximately 6 hours have passed NOTE: since the power was turned on (crankcase heater is energized). If operation is started by using the remote control within 1 minute of Indoor unit...
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1. The main power is turned on while the transmission wires Symptom: between the indoor unit(s) are not connected (open circuit • • • • Remote control unit... Display of “No power supply” at section A) • • • • Indoor unit (master)... LED1 on the printed circuit board Symptom: stays illuminated and the unit does not operate Nothing abnormal appears on the remote control display.
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Symptom: 1. The main power is turned on while the transmission wires between the indoor unit and the outdoor unit are not Nothing abnormal appears on the remote control display, connected (open circuit at section A) and operation of indoor unit. No. 1 and indoor unit No. 2 is Symptom: possible.
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1. Automatic address setting (no need to have dip-switch set) If the wiring 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 separately, turn on the switch as the following procedure: outdoor unit, indoor unit with control, and other indoor units.
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1. Automatic address setting (no need to have dip-switch set) If the wiring 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 separately, turn on the switch as the following procedure: outdoor unit, indoor unit with controller, and other indoor units.
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Procedures of deleting memory at twin control system 1. Set the “OFF” position for main power supply switch. 2. Set the “ON” position for No. 8 pin of dip switch (DSW1) on indoor unit P.C. board. 3. Take main power supply switch “ON” for one minute, and then main power supply switch off. 4.
24 EMERGENCY OPERATION • • • • Set only the thermistor which shows an abnormality to the Emergency operation • • • • Emergency operation of outdoor unit condition shown in the table below to carry out emergency operation Emergency operation can be carried out by setting the DSW1 switch on the printed circuit board inside the outdoor unit to the EMERGENCY position.
25 CONTROL 25.1. Description of basic Functions 25.1.1. 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.
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25.2. Freezing prevention control 1. Operation During cooling mode operation, after 9 minutes have passed since the compressor turned on, the outdoor units stops operating 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 unit.
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25.3. Heating mode operation time chart (Heat pump type only) (*2) Outdoor unit fan control during heating mode operation Under conditions 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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25.4. Hot starting 1. When heating mode operation starts 1. Start Hot start control commences heating mode operation starts. 2. Operation “PREHEAT” appears on the remote control display. (Other displays remain unchanged.) At the indoor unit, the indoor unit fan stops. In addition, during hot starting, the louvre stays at the horizontal position (angle 0°).
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3. Cancelling Hot starting is 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.
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25.6. Excess heat dissipation for indoor unit The indoor unit fan continues operating for 30 seconds after heating mode operation turns off in order to dissipate excess heat. 1. When heating mode operation has stopped (LOW operation for 30 seconds) 2.
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25.8. Indoor thermostat characteristic 1. Thermostat characteristic during cooling and heating modes...
25.9. 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. 25.10.