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Panasonic CS-A24BB4P Service Manual

Other manuals for CS-A24BB4P: Operating Instructions Manual
Manual is about: cassette type

Summary of CS-A24BB4P

  • Page 1

    1 service information 3 2 features 4 3 specification (heat pump type ) 8 4 specification (cooling only type ) 15 5 technical drawing 26 6 circuit diagram 32 7 operating instruction 48 8 refrigeration cycle 50 9 operation range 52 © 2001 matsushita air-conditioning corp. Sdn. Bhd. (183914d). All righ...

  • Page 2

    18 reaching distance 68 19 sound data 70 20 twin and triple 75 21 wiring mistake prevention 80 22 test operation and self diagnosis 81 23 setting of save energy and thermistor switch 85 24 group control 86 25 troubleshooting 87 26 emergency operation 92 27 control 93 28 wired remote control installa...

  • Page 3: 1  Service Information

    1 service information 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 ...

  • Page 4: 2.1.

    2.1. Variety of excellent features • • compact design compact design 240 mm height, 840 mm width and 840 mm depth. (3 hp unit body) • • automatic restart function when the electric power resumes after a power failure, the unit will automatically restarts the operation in the pre- failure mode. • • a...

  • Page 5: 2.3.

    2.2.1. Product features • • low-noise design improves comfort in surrounding areas 1. The noise-suppre ssing 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...

  • Page 6: 2.4.

    • • 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-prevention structure − − the base of the outdoor unit is provided with a single drain h...

  • Page 7: 2.5.

    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 u...

  • Page 8: 3.1.

    3 specification (heat pump type ) 3.1. Cs-a24bb4p / cu-a24bbp5 item / model indoor unit outdoor unit main body cs-a24bb4p cu-a24bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 6.3 btu/h 21,500 heating capacity kw 7.1 btu/h 24,200 refrigerant charge- less m...

  • Page 9: 3.2.

    3.2. Cs-a28bb4p / cu-a28bbp5 item / model indoor unit outdoor unit main body cs-a28bb4p cu-a28bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 7.1 btu/h 24,200 heating capacity kw 8.0 btu/h 27,300 refrigerant charge- less m 30 standard air volume for high, ...

  • Page 10: 3.3.

    3.3. Cs-a28bb4p / cu-a28bbp8 item / model indoor unit outdoor unit main body cs-a28bb4p cu-a28bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 7.1 btu/h 24,200 heating capacity kw 8.0 btu/h 27,300 refrigerant charge- less m 30 standard air volume for high, ...

  • Page 11: 3.4.

    3.4. Cs-a34bb4p / cu-a34bbp5 item / model indoor unit outdoor unit main body cs-a34bb4p cu-a34bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 10.0 btu/h 34,100 heating capacity kw 11.2 btu/h 38,200 refrigerant charge- less m 30 standard air volume for high...

  • Page 12: 3.5.

    3.5. Cs-a34bb4p / cu-a34bbp8 item / model indoor unit outdoor unit main body cs-a34bb4p cu-a34bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 10.0 btu/h 34,100 heating capacity kw 11 btu/h 38,200 refrigerant charge- less m 30 standard air volume for high, ...

  • Page 13: 3.6.

    3.6. Cs-a43bb4p / cu-a43bbp8 item / model indoor unit outdoor unit main body cs-a43bb4p cu-a43bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 12.5 btu/h 42,700 heating capacity kw 14.0 btu/h 47,800 refrigerant charge- less m 30 standard air volume for high...

  • Page 14: 3.7.

    3.7. Cs-a50bb4p / cu-a50bbp8 item / model indoor unit outdoor unit main body cs-a50bb4p cu-a50bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl51p (wireless) cooling capacity kw 14.0 btu/h 47,800 heating capacity kw 15.5 btu/h 52,900 refrigerant charge- less m 30 standard air volume for high...

  • Page 15: 4.1.

    4 specification (cooling only type ) 4.1. Cs-a24bb4p / cu-c24bbp5 item / model indoor unit outdoor unit main body cs-a24bb4p cu-c24bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 6.3 btu/h 21,500 refrigerant charge- less m 30 standard air volume for high, ...

  • Page 16: 4.2.

    4.2. Cs-a28bb4p / cu-c28bbp5 item / model indoor unit outdoor unit main body cs-a28bb4p cu-c28bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 7.1 btu/h 24,200 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 20 me 18 lo 16 hi 43 medi...

  • Page 17: 4.3.

    4.3. Cs-a28bb4p / cu-c28bbp6 item / model indoor unit outdoor unit main body cs-a28bb4p cu-c28bbp6 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 7.6 btu/h 25,900 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 20 me 18 lo 16 hi 43 medi...

  • Page 18: 4.4.

    4.4. Cs-a28bb4p / cu-c28bbp8 item / model indoor unit outdoor unit main body cs-a28bb4p cu-c28bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 7.1 btu/h 24,200 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 20 me 18 lo 16 hi 43 medi...

  • Page 19: 4.5.

    4.5. Cs-a34bb4p / cu-c34bbp5 item / model indoor unit outdoor unit main body cs-a34bb4p cu-c34bbp5 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 10.0 btu/h 34,100 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 26 me 23 lo 20 hi 70 med...

  • Page 20: 4.6.

    4.6. Cs-a34bb4p / cu-c34bbp7 item / model indoor unit outdoor unit main body cs-a34bb4p cu-c34bbp7 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 10.0 btu/h 34,100 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 26 me 23 lo 20 hi 70 med...

  • Page 21: 4.7.

    4.7. Cs-a34bb4p / cu-c34bbp8 item / model indoor unit outdoor unit main body cs-a34bb4p cu-c34bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 10.0 btu/h 34,100 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 26 me 23 lo 20 hi 70 med...

  • Page 22: 4.8.

    4.8. Cs-a43bb4p / cu-c43bbp7 item / model indoor unit outdoor unit main body cs-a43bb4p cu-c43bbp7 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 13.5 btu/h 46,100 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 30 me 27 lo 24 hi 80 med...

  • Page 23: 4.9.

    4.9. Cs-a43bb4p / cu-c43bbp8 item / model indoor unit outdoor unit main body cs-a43bb4p cu-c43bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 12.5 btu/h 42,700 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 30 me 27 lo 24 hi 82 med...

  • Page 24

    4.10. Cs-a50bb4p / cu-c50bbp7 item / model indoor unit outdoor unit main body cs-a50bb4p cu-c50bbp7 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 15.1 btu/h 51,500 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 31 me 26 lo 22 hi 86 me...

  • Page 25

    4.11. Cs-a50bb4p / cu-c50bbp8 item / model indoor unit outdoor unit main body cs-a50bb4p cu-c50bbp8 panel cz-bt01p remote cz-rd51p (wired) control cz-rl01p (wireless) cooling capacity kw 14.0 btu/h 47,800 refrigerant charge- less m 30 standard air volume for high, m 3 /min hi 30 me 27 lo 24 hi 86 me...

  • Page 26: 5  Technical Drawing

    5 technical drawing 26 cassette type.

  • Page 27

    27 cassette type.

  • Page 28

    28 cassette type.

  • Page 29

    29 cassette type.

  • Page 30

    30 cassette type.

  • Page 31

    31 cassette type.

  • Page 32: 6  Circuit Diagram

    6 circuit diagram 32 cassette type.

  • Page 33

    33 cassette type.

  • Page 34

    34 cassette type.

  • Page 35

    35 cassette type.

  • Page 36

    36 cassette type.

  • Page 37

    37 cassette type.

  • Page 38

    38 cassette type.

  • Page 39

    39 cassette type.

  • Page 40

    40 cassette type.

  • Page 41

    41 cassette type.

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    42 cassette type.

  • Page 43

    43 cassette type.

  • Page 44

    44 cassette type.

  • Page 45

    45 cassette type.

  • Page 46

    46 cassette type.

  • Page 47

    47 cassette type.

  • Page 48: 7  Operating Instruction

    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 du...

  • Page 49: 7.2.

    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....

  • Page 50: 8  Refrigeration Cycle

    8 refrigeration cycle cs-a24bb4p/cu-a24bbp5, cs-a28bb4p/cu-a28bbp5, cs-a28bb4p/cu-a28bbp8, cs-a34bb4p/cu-a34bbp5, cs-a34bb4p/cu-a34bbp8, cs-a43bb4p/cu-a43bbp8, cs-a50bb4p/cu-a50bbp8 50 cassette type.

  • Page 51

    Cs-a24bb4p/cu-c24bbp5, cs-a28bb4p/cu-c28bbp5, cs-a28bb4p/cu-c28bbp6, cs-a28bb4p/cu-c28bbp8, cs-a34bb4p/cu-c34bbp5, cs-a34bb4p/cu-c34bbp7, cs-a34bb4p/cu-c34bbp8, cs-a43bb4p/cu-c43bbp7, cs-a43bb4p/cu-c43bbp8, cs-a50bb4p/cu-c50bbp7, cs-a50bb4p/cu-c50bbp8 51 cassette type.

  • Page 52: 9  Operation Range

    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 voltag...

  • Page 53: 10 Pipe Length

    10 pipe length n n 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 5 meters connecting pipe and horizontal installation. For other pipe l...

  • Page 54

    1. Piping installation by standard piping • • 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 t...

  • Page 55

    11 operating characteristic model main power source compressor motor indoor unit fan motor outdoor unit fan motor voltage frequency s.C. R.C. (a) ipt (kw) r.C. Ipt r.C. Ipt (v) (hz) (a) cool/heat cool/heat (a) (kw) (a) (kw) cs-a24bb4p 220 50 49 10.6 2.31 0.40 0.08 0.50 0.11 cu-c24bbp5 230 50 51 10.2...

  • Page 56: 12 Fan Performance

    Cs-a24bb4p item / model indoor unit outdoor unit cs-a24bb4p cu-a24bbp5, cu-c24bbp5 mode hi me lo hi air volume m 3 /min 17 15 14 43 running current a 0.38 0.31 0.27 0.50 power consumption kw 0.08 0.07 0.06 0.11 fan speed r/min 425 385 335 660 cs-a28bb4p item / model indoor unit outdoor unit cs-a28bb...

  • Page 57

    Cs-a43bb4p item / model indoor unit outdoor unit cs-a43b4p cu-a43bbp5, cu-c43bbp7, cu-c34bbp8 mode hi me lo hi air volume m 3 /min 30 27 24 82 running current a 0.90 0.80 0.70 1.10 power consumption kw 0.20 0.17 0.14 0.23 fan speed r/min 725 655 575 660 cs-a50bb4p item / model indoor unit outdoor un...

  • Page 58: 13 Safety Device

    13 safety device indoor unit heat pump model indoor unit cs-a24bb4p cs-a28bb4p cs-a34bb4p cs-a43bb4p cs-a50bb4p cooling only model for fan motor protection, off °c 135 135 135 135 135 internal protector (49f) on °c 85 85 85 85 85 for control protection, fuse cut a 3.15 3.15 3.15 3.15 3.15 outdoor un...

  • Page 59: 14 Component Specification

    14 component specification compressor model heat pump model 50hz cu-a24bbp5 cu-a28bbp5 cu-a34bbp5 cu-a43bbp8 cu-a50bbp8 cu-a28bbp8 cu-a34bbp8 cooling only 50hz cu-c24bbp5 cu-c28bbp5 cu-c34bbp5 cu-c43bbp8 cu-c50bbp8 model cu-c28bbp8 cu-c34bbp8 60hz cu-c28bbp6 cu-c34bbp7 cu-c43bbp7 cu-c50bbp7 compress...

  • Page 60

    Model heating capacities are based on conditions below. Cs-a24bb4p heating capacity 7.1 kw 1 phase, 50hz, 230v indoor temperature 20°c d.B. Outdoor temperature 7°c d.B. 6°c w.B. Standard air volume 17m 3 /min inlet air outdoor temperature (°c w.B.) external static pressure (pa) air volume (m 3 /min)...

  • Page 61

    Model heating capacities are based on conditions below. Cs-a34bb4p heating capacity 11.2 kw 1 phase, 50hz, 230v indoor temperature 20°c d.B. Outdoor temperature 7°c d.B. 6°c w.B. Standard air volume 27m 3 /min inlet air outdoor temperature (°c w.B.) external static pressure (pa) air volume (m 3 /min...

  • Page 62

    Model heating capacities are based on conditions below. Cs-a43bb4p heating capacity 14.0 kw 3 phase, 50hz, 400v indoor temperature 20°c d.B. Outdoor temperature 7°c d.B. 6°c w.B. Standard air volume 30m 3 /min inlet air outdoor temperature (°c w.B.) external static pressure (pa) air volume (m 3 /min...

  • Page 63

    Model cooling capacities are based on conditions below. Cs-a24bb4p cooling capacity 6.3 kw 1 phase, 50hz, 230v indoor temperature 27°c d.B. 19°c w.B. Outdoor temperature 35°c d.B. Standard air volume 17m 3 /min entering temperature air entering condenser (°c d.B.) air 25 30 35 40 43 temperature tc t...

  • Page 64

    Model cooling capacities are based on conditions below. Cs-a34bb4p cooling capacity 10.0 kw 1 phase, 50hz, 230v indoor temperature 27°c d.B. 19°c w.B. Outdoor temperature 35°c d.B. Standard air volume 27m 3 /min entering temperature air entering condenser (°c d.B.) air 25 30 35 40 43 temperature tc ...

  • Page 65

    Model cooling capacities are based on conditions below. Cs-a43bb4p cooling capacity 12.5 kw 3 phase, 50hz, 400v indoor temperature 27°c d.B. 19°c w.B. Outdoor temperature 35°c d.B. Standard air volume 30m 3 /min entering temperature air entering condenser (°c d.B.) air 25 30 35 40 43 temperature tc ...

  • Page 66

    16 discharge and suction pressure 66 cassette type.

  • Page 67

    17 position of the center gravity model name outside dimensions net weight centre of gravity width (mm) depth (mm) height (mm) kg x (mm) y (mm) z (mm) cu-a24bbp5 900 900 320 81 560 160 360 cu-c24bbp5 900 900 320 80 560 160 360 cu-a28bbp5 900 900 320 82 580 160 340 cu-a28bbp8 900 900 320 82 580 160 3...

  • Page 68: 18 Reaching Distance

    18 reaching distance 68 cassette type.

  • Page 69

    69 cassette type.

  • Page 70: 19 Sound Data

    19 sound data 70 cassette type.

  • Page 71

    71 cassette type.

  • Page 72

    72 cassette type.

  • Page 73

    73 cassette type.

  • Page 74

    74 cassette type.

  • Page 75: 20 Twin And Triple

    20.1. 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. • • the master unit and slave units are set automatically when the power is turned on. At this time, the indoor unit whic...

  • Page 76

    20.1.2. 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 ...

  • Page 77: 20.2.  Piping Connections

    • • the indoor units will not run for approximatel y 1 minute while automatic twin/triple address resetting is being carried out. Note: • • do not turn off the power supply for at least 1 minute after automatic twin/triple address resetting has been carried out. 20.2. Piping connections • • the foll...

  • Page 78

    20.3. 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...

  • Page 79: 20.4.  Wiring

    20.4. Wiring 79 cassette type.

  • Page 80

    21 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...

  • Page 81: 22.1.  Test Operation

    22.1. Test operation • • always use a properly-insu lated 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...

  • Page 82: Wireless Remote Control

    22.4. Test operation using the wireless remote control 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 op...

  • Page 83

    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 previou...

  • Page 84

    84 cassette type.

  • Page 85: Control Thermistor

    23.1. 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 simultaneous ly...

  • Page 86: 24 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 man...

  • Page 87: 25 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 no...

  • Page 88

    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 indo...

  • Page 89

    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 aft...

  • Page 90

    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 unit...

  • Page 91

    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. Simultaneou sly, 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/trip...

  • Page 92: 26 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/out...

  • Page 93: 27 Control

    27 control description of basic functions 27.1. 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 carr...

  • Page 94

    • • 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. 27.2. Drain pump control 1. Basic operation during cooling mode, dry mode or de...

  • Page 95

    (when float switch is continuously off) 27.3. 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 o...

  • Page 96

    27.4. 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) i...

  • Page 97: 27.5.  Hot Starting

    27.5. 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 s...

  • Page 98: Operation

    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 ...

  • Page 99

    27.7. 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 heatin...

  • Page 100

    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. 2....

  • Page 101

    3. Thermostat characteristic s 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 characteristic s given in the table below. B. Thermostat character...

  • Page 102

    27.10. 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 temperatur...

  • Page 103: 27.15. Emergency Operation

    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 operat...

  • Page 104

    28 wired remote control installation manual 104 cassette type.

  • Page 105

    105 cassette type.

  • Page 106

    106 cassette type.

  • Page 107

    107 cassette type.

  • Page 108

    108 cassette type.

  • Page 109

    29 wireless remote control installation manual 109 cassette type.

  • Page 110

    110 cassette type.

  • Page 111

    111 cassette type.

  • Page 112

    112 cassette type.

  • Page 113

    113 cassette type.

  • Page 114

    114 cassette type.

  • Page 115

    115 cassette type.

  • Page 116

    30 installation (indoor unit) 116 cassette type.

  • Page 117

    117 cassette type.

  • Page 118

    118 cassette type.

  • Page 119

    119 cassette type.

  • Page 120

    120 cassette type.

  • Page 121

    121 cassette type.

  • Page 122

    122 cassette type.

  • Page 123

    123 cassette type.

  • Page 124

    124 cassette type.

  • Page 125

    31 installation (outdoor unit) 125 cassette type.

  • Page 126

    126 cassette type.

  • Page 127

    127 cassette type.

  • Page 128

    128 cassette type.

  • Page 129

    129 cassette type.

  • Page 130

    130 cassette type.

  • Page 131

    131 cassette type.

  • Page 132

    132 cassette type.

  • Page 133

    133 cassette type.

  • Page 134: 32 Replacement Parts

    32 replacement parts 32.1. Indoor unit 134 cassette type.

  • Page 135

    135 cassette type.

  • Page 136

    No. Part description qty. Cs-a24bb4p cs-a28bb4p cs-a34bb4p cs-a43bb4p cs-a50bb4p 1 base pan ass’y 1 cwd52k1034 ← ← ← ← ← ← ← ← 2 inner polystyrene (top) 1 cwg071049 ← ← cwg071057 ← ← ← ← 3 inner polystyrene (side) 1 cwg07c1016 ← ← cwg07c1017 ← ← ← ← 4 cabinet side plate ass’y 1 cwe04k1001 ← ← cwe04k...

  • Page 137

    137 cassette type.

  • Page 138

    No. Part description part no. Qty. 1 front grille cwe121026 1 2 cover- air swing motor cwh811013 1 3 connector- shaft cwh081002 1 4 connector- shaft cwh081003 6 5 connector- shaft cwh081004 6 6 bearing cwh641006 8 7 vane cwe241103 4 8 connector- shaft cwh081005 2 9 connector- shaft cwh081006 2 10 ai...

  • Page 139: 32.2.  Outdoor Unit

    32.2. Outdoor unit 139 cassette type.

  • Page 140

    140 cassette type.

  • Page 141

    141 cassette type.

  • Page 142

    142 cassette type.

  • Page 143

    No. Part description qty. Cu-a24bbp5 cu-a28bbp5 cu-a28bbp8 1 base pan ass’y 1 cwd52k1038a ← ← ← ← 2 compressor 1 nh41vndt nh44vndt nh44ydet 3 anti-vibration bushing 4 cwh501018 ← ← ← ← 4 nut for comp. Mount. 3 xng8 ← ← ← ← 4a washer for compressor 3 xwa8 ← ← ← ← 4b sp washer 3 cwh571018 ← ← ← ← 5 cr...

  • Page 144

    No. Part description qty. Cu-c24bbp5 cu-c28bbp5 cu-c28bbp6 cu-c28bbp8 1 base pan ass’y 1 cwd52k1038a ← ← ← ← ← ← 2 compressor 1 nh41vndt nh44vndt nh44nadt nh44ydet 3 anti-vibration bushing 4 cwh501018 ← ← ← ← ← ← 4 nut for comp. Mount. 3 xng8 ← ← ← ← ← ← 4a washer for compressor 3 xwa8 ← ← ← ← ← ← 4...

  • Page 145

    145 cassette type.

  • Page 146

    146 cassette type.

  • Page 147

    147 cassette type.

  • Page 148

    148 cassette type.

  • Page 149

    No. Part description qty. Cu-a34bbp5 cu-a34bbp8 cu-a43bbp8 cu-a50bbp8 1 base pan ass’y 1 cwd52k1039a ← ← cwd52k1040a ← ← 2 compressor 1 zr47k3pfj522 zr45kctfd522 zr57kctfd599 zr68kctfd599 3 anti-vibration bushing 4 cwh501020 ← ← ← ← ← ← 4 nut for comp. Mount. 3 4582065 ← ← ← ← ← ← 5 crankcase heater...

  • Page 150

    No. Part description qty. Cu-c34bbp5 cu-c34bbp7 cu-c34bbp8 cu-c43bbp7 cu-c43bbp8 cu-c50bbp7 cu-c50bbp8 1 base pan ass’y 1 cwd52k1039a ← ← ← ← cwd52k1040a ← ← ← ← ← ← 2 compressor 1 zr47k3pfj522 zr45kctf5522 zr45kctfd522 zr57kctf5599 zr57kctfd599 zr68kctf5599 zr68kctfd599 3 anti-vibration bushing 4 c...

  • Page 151

    33 heating capacity performance data model power source inlet air outdoor temperature (°c w. B.) (cs-) external static pressure (pa) entering air -6 °c 0 °c 6 °c 12 °c air volume (m 3 /min) dry bulb (°c) h.C. Ipt h.C. Ipt h.C. Ipt h.C. Ipt a24bb4p 230v, 15 5.18 1.74 6.21 1.99 7.46 2.37 8.66 2.79 50h...

  • Page 152

    34 cooling capacity performance data model power source entering temperature air entering condeser (°c d.B.) (cs-) air 25 °c 30 °c 35 °c 40 °c 43 °c temperature tc shc ipt tc shc ipt tc shc ipt tc shc ipt tc shc ipt d.B. W.B. Kw kw kw kw kw kw kw kw kw kw kw kw kw kw kw a24bb4p 230v, 17 6.30 4.13 1....

  • Page 153

    A43bb4p 400v, 17 12.6 8.27 3.32 12.0 8.10 3.57 11.4 7.91 3.95 10.8 7.74 4.29 10.0 7.40 4.55 50hz, 23 19 13.3 6.80 3.48 12.7 6.74 3.75 12.1 6.63 4.11 11.5 6.56 4.42 10.8 6.37 4.77 three phase 22 14.6 5.24 3.65 14.0 5.30 3.94 13.3 5.32 4.23 12.7 5.35 4.60 12.0 5.28 4.92 17 12.7 9.69 3.35 12.0 9.45 3.6...