Caution of test operation
Do not touch the remote control switch 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.)
Caution during automatic address setting
When main power supply switch is on, the P.C. board will automatically memorized the connecting system. Consequently, when initial power supply is on, there will not be interchangeability of units even of the same type and same capacity unit. Therefore unable to connect the unit to another system.

1.4.1.

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.
MODEL CUB24DBE5 B28DBE5 B34DBE5 B28DBE8 B34DBE8 B43DBE8 B50DBE8 Unit Main Power Phase, Volts 1~220 1~230 1~240 3N~380 3N~400 3N~415 Applicable Voltage Hz Max Min 360 374

1.4.2.

Indoor and Outdoor Temperature
Model 50Hz CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 CU-B34DBE5 CU-B34DBE8 CU-B43DBE8 CU-B50DBE8
Operating Cooling Heating Hz Indoor Temp. (D.B./W.B.) (C) Max Min 32/23 21/15 27/16/Outdoor Temp. (D.B./W.B.) (C) Max Min 43/-10/24/18 -10/-

2 Features

2.1.1.

Cassette Type features

Three Airflow Patterns for Extra Comfort
Multi-comfort air control.

2.1.2.

Low Noise and High Air Flow Rate
The cassette indoor unit is equipped with newly-develop turbo fan; the new shape produces low noise and high air flow rate.

2.1.3.

Fast, Flexible Installation
Drain hose can be elevated 750 mm from the base of the unit simply by connecting an elbow. This adds to ease of drain piping work, and flexibility in locating the indoor unit. It automatically adjusts the fan speed according to the indoor temperature.

2.2.1.

Outdoor Unit
Flexible Installation in Smaller Spaces
Spacing-saving outdoor unit with the improvement of the outdoor unit fan makes it possible to install the outdoor unit into a smaller space where the conventional model cannot be installed.
Long Pipe design with maximum piping lenght of 40m. Flexible 4-way piping.
Centralized Drain Method gathered multiple outdoor units drain pipes into a single drain pipe to makes installation easier and also improve appearance.

Safety Devices

Indoor Unit Heat Pump Model Cooling only Model CS-F24DB4E5 CS-F28DB4E5 CS-F34DB4E5 CS-F43DB4E5 CS-F50DB4E5

INDOOR UNIT

For fan motor protection
Indoor Unit Internal protector (49F) For condensation temperature protection control Heater exchanger thermistor For control protection Fuse
Heat Pump Model Cooling only Model OFF C ON C OFF RESET CUT C C A

CS-F24DB4E54 3.15

CS-F28DB4E54 3.15

CS-F34DB4E54 3.15

CS-F43DB4E54 3.15

CS-F50DB4E54 3.15

OUTDOOR UNIT
Outdoor Unit Heat pump Model 50Hz CU-B24DBE5 CU-B28DBE5 CU-B28DBE8 CU-B34DBE5 CU-B34DBE8 CU-B43DBE8 CU-B50DBE8
For refrigerant cycle High pressure OFF Mpa 4.15 switch (63H1) ON Mpa 3.05 For compressor Over current protection Heat Pump Model OFF A 19 Cooling only Model OFF A RESET Automatic Discharge temperature protection Discharge Comtemperature thermistor (Th1) pressor C 115 OFF Liquid compress protection Input W 37 Crankcase heater Power Compressor protection Internal protector OFF C 160 ON C 90 trip time 3-10sec/65A For fan motor protection Internal OFF C 135 protector (49F) ON C 85 Heating control (Heat Pump only) Pressure switch OFF Mpa _ (Fan speed) (63H2) ON Mpa _ Cooling control Heat exchanger Control method outlet temperature thermistor (Th2) For control protection Fuse CUT A 6.3

4.15 3.05

20 Automatic

7.5 Automatic

Automatic

3-10sec/78A

3-10sec/25A

135 85

135 86
Th 40C High speed 40C 5 speed step control

1Mpa=10.2kgf/cm

4 Dimensions
4.1. CS-F24DB4E5 CS-F28DB4E5 CS-F34DB4E5

CS-F43DB4E5 CS-F50DB4E5

CU-B24DBE5 CU-B28DBE5 CU-B28DBE8
CU-B34DBE5 CU-B34DBE8 CU-B43DBE8 CU-B50DBE8

5 Refrigeration Cycle

5.1. CS-F24DB4E5 CU-B24DBE5, CS-F28DB4E5 CU-B28DBE5/CU-B28DBE8
CS-F34DB4E5 CU-B34DBE5/CU-B34DBE8, CS-F43DB4E5 CU-B43DBE8, CS-F50DB4E5 CU-B50DBE8

6 Block Diagram

6.1. CS-F24DB4E5 CS-F28DB4E5 CS-F34DB4E5 CS-F43DB4E5 CS-F50DB4E5

CU-B24DBE5 CU-B28DBE5

Caution Make sure that screws of the terminal are securely tightened.
Earth lead wire shall be longer than other lead wires as shown in the figure for the electrical safety in case of the slipping out of the cord from anchorage.

10.4.8. Settings

Do not operate the remote controller within 1 minute after turning on the power of the indoor unit. When using group control with the standard type, at least 1 unit must be set at No.1 at the indoor unit. Check the settings of the indoor unit in a case where there are no display at remote controller. If there is no problem to the settings, either group control or standard type should be set at No.16 at the indoor unit before turning the power on again.
All sets in the group which uses the same remote controller thermistor settings can be controlled by the same remote controller thermistor. Up to a maximum of 16 indoor units can be connected at the time of group control. (Do not connect heat pump unit with cooling only unit.) Indoor unit No. will be set automatically at the time of group control. However, which indoor unit uses which number is unknown. Indoor unit No. is also possible to be set manually with DIP switches. Since manual address setting has priority to automatic address setting. To perform automatic address settings after doing manual setting, turn off all DIP switches from No.1 to No.4, and then stop the operation. Then press three switches such as [AIR SWING AUTO]. [MODE]. [A/C No.] at the same time. (Do not use manual address setting and automatic address setting together.) Centralized control is possible for master unit and slave unit at the time of group control.
10.4.9. Installation of decorative panel
The decorative panel has its installation direction. Confirm the direction by displaying of the piping side. Before installing the decorative panel, always remove the paper template.
1. Remove the air inlet grill from the decorative panel.
2. Remove the corner cover in 4 corner places. Pull hook of corner cover as direction , at same time remove it by sliding out in direction.
3. Fix the hanger (2 pieces) of the decorative panel to the indoor unit. There is direction information at decorative panel [PIPING SIDE] indication meaning the direction of piping side.
4. Adjust between decorative panel fixing hole and indoor unit screw hole. 5. Fix decorative panel with 4 screws with already fix at paper model for installation.

In either case, important descriptions regarding the safety are listed, then observe them without fail. As to indications with illustration
After installation work has been completed, do not only make sure that the unit is free from any abnormal condition through the execution of try run but also explain how to use and how to perform maintenance of this unit to the customer according to the instruction manual. In addition, request the customer to keep this manual for installation work together with instruction manual.
Warnings Wiring shall be connected securely using specified cables and fix them securely so that external force of the cables may not transfer to the terminal connection section. Imperfect connection and fixing leads to fire, etc. As to installation, request the distributor or vendor to perform it. If installing inside a small room, measures should be taken to Imperfection in installation caused by that having been carried prevent refrigerant levels from building up to critical out by the customer himself may lead to water leakage, electric concentrations in the event of a refrigerant leak occurring. Please shock, fire, etc. discuss with the place of purchase for advice on what measures may be necessary to prevent critical concentrations being exceeded. If the refrigerant leaks and reaches critical concentration levels, there is the danger that death from suffocation may result. Carry out the installation work with reliability according to this Securely attach the protective covers for the outdoor unit manual for installation work. connection cables and power cord so that they do not lift up after Imperfection in installation leads to water leakage, electric installation. If the covers are not properly attached and installed, shock, fire, etc. the terminal connections may overheat, and fire or electric shock may result. Carry out the installation work with reliability on the place that Switch off all supplies before accessing any electrical part. can bear the weight of this unit sufficiently. Insufficient strength leads to injury due to falling of the unit. Carry out predetermined installation work in preparation for If refrigerant gas escapes during installation, ventilate the strong wind such as typhoon, earthquake. affected area. If the refrigerant gas comes into contact with Imperfection in installation work may lead to accidents arisen sparks or naked flames, it will cause toxic gases to be from overturn, etc. generated. The unit must be installed in accordance with applicable national Once installation work is completed, check that there are no and local regulations. refrigerant gas in the room that can come into contact with Any electrical work should only be carried out by qualified sparks or flames from a fan heater, stove or kitchen range, which technician and use exclusive circuits without fail. will cause toxic gases to be generated. Presence of insufficient capacity in power circuit or imperfection in execution leads to electric shock, fire, etc. The appliance must be installed by technician, who takes into account the requirements given by ISO5149 or eventual equivalent requirements.

Connect the power supply wiring and indoor/outdoor unit connection wiring according to the electrical circuit diagram instructions. Clamp the wires securely to the terminal connections using cord clamps so that no undue force is placed on the wires. Once all wiring work has been completed, tie the wires and cords together with the binding strap so that they do not touch other parts such as the compressor and pipes.
1. 2. Connect the power supply line to a 3-phase/380-415V (or single-phase 220240V) power supply. The equipment shall be connected to a suitable mains network with a main impedance less than the valve indicated in the table of power supply specifications. Be sure to connect the wires correctly to terminal board with connecting the crimp type ring terminal to the wires. The binding screws inside the power supply box may become loosened due to vibration during transportation, so check that they are tightened securely. Tighten the binding screws to the specified torque while referring to the table below. If connecting two separate wires to a single crimped terminal, place the two crimped terminal wires together as shown in Fig. A. (If the arrangement shown in Fig. B is used, poor contacts or contact damage may result.) If momentarily turning on the power supply for both the indoor and outdoor units, do not turn the power off again until at least 1 minute has passed (except when a reversed phase has been detected).

3. 4. 5. 6.

Use only the specified cables for wiring connections. Connect the cable securely, and secure them properly so that no undue force will be applied to the terminal connections. If the terminals are loose or if the wires are not connected securely, fire may result. Tightening torque N.cm {kgf.cm} 69 ~ 98 {7 ~ 10} 157 ~ 196 {16 ~ 20} 196 ~ 245 {20 ~ 25}

Terminal screw M3 M4 M5

Earth lead wire shall be longer than other lead wires as shown in the figure for the electrical safety in case of the slipping out of the

cord from the anchorage.

Power supply specifications
Leakage current breaker (A) 220V-240V~ 380V-415V 3N~ 220V-240V~ 380V-415V 3N~ 220V-240V~ 380V-415V 3N~ 380V-415V 3N~ 380V-415V 3N~ Circuit breaker (Minimum Capacity) Switch Fuse (A) (A) Minimum power supply cables 4mm2 Maximum Indoor/outdoor cable permissible unit connection based on impedance () power cables length (m) , (terminals , , ) 16 0.0.1017 2.5 mm16 0.0.0.0.0.0.1017

11 Installation and Servicing Air Conditioner Using R410A

11.1. Outline

11.1.1. About R410A refrigerant
1. Converting air conditioners to R410A Since it was declared in1974 that chlorofluorocarbons (CFC), hydro chlorofluorocarbons (HCFC) and other substances pose a destructive danger to the ozone layer in the earths upper stratosphere (20 to 40 km above the earth), measures have been taken around the world to prevent this destruction. The R22 refrigerant which has conventionally been used in ACs is an HCFC refrigerant and, therefore, possesses this ozonedestroying potential. International regulations (the Montreal Protocol on Ozone-Damaging Substances) and the domestic laws of various countries call for the early substitution of R22 by a refrigerant which will not harm the ozone layer. In ACs, the HFC refrigerant which has become the mainstream alternative is called R410A. Compared with R22, the pressure of R410A is approximately 1.6 times as high at the same refrigerant temperature, but the energy efficiency is about the same. Consisting of hydrogen (H), fluorine (F) and carbon (C), R410A is an HFC refrigerant. Another typical HFC refrigerant is R407C. While the energy efficiency of R407C is somewhat inferior to that of R410A, it offers the advantage of having pressure characteristics which are about the same as those of R22, and is used mainly in packaged ACs. 2. The characteristics of HFC (R410A) refrigerants a. Chemical characteristics The chemical characteristics of R410A are similar to those of R22 in that both are chemically stable, non-flammable refrigerants with low toxicity. However, just like R22, the specific gravity of R410A gas is heavier than that of air. Because of this, it can cause an oxygen deficiency if it leaks into a closed room since it collects in the lower area of the room. It also generates toxic gas when it is directly exposed to a flame, so it must be used in a well ventilated environment where it will not collect.

11.1.2. Safety measures when installing/servicing refrigerant piping
Cause the gas pressure of R410A is approximately 1.6 times as high as that of R22, a mistake in installation or servicing could result in a major accident. It is essential that you use R410A tools and materials, and that you observe the following precautions to ensure safety. 1. Do not use any refrigerant other than R410A in ACs that have been used with R410A. 2. If any refrigerant gas leaks while you are working, ventilate the room. Toxic gas may be generated if refrigerant gas is exposed to a direct flame. 3. When installing or transferring an AC, do not allow any air or substance other than R410A to mix into the refrigeration cycle. If it does, the pressure in the refrigeration cycle can become abnormally high, possibly causing an explosion and/or injury. 4. After finishing the installation, check to make sure there is no refrigerant gas leaking. 5. When installing or transferring an AC, follow the instructions in the installation instructions carefully. Incorrect installation can result in an abnormal refrigeration cycle or water leakage, electric shock, fire, etc. 6. Do not perform any alterations on the AC unit under any circumstances. Have all repair work done by a specialist. Incorrect repairs can result in a water leakage, electric shock, fire, etc.
11.2. Tools for installing/servicing refrigerant piping

11.2.1. Necessary tools

In order to prevent an R410A AC from mistakenly being charged with any other refrigerant, the diameter of the 3-way valve service port on the outdoor unit has been changed. Also, to increase its ability to withstand pressure, the opposing dimensions have been changed for the refrigerant pipe flaring size and flare nut. Accordingly, when installing or servicing refrigerant piping, you must have both the R410A and ordinary tools listed below.
Type of work Flaring Bending, connecting pipes Table 3 Tools for installation, transferring or replacement Ordinary tools R410A tools Flaring tool (clutch type), pipe cutter, Copper pipe gauge for clearance reamer Adjustment, flaring tool (clutch type)*1) Torque wrench (nominal diameter 1/4, 3/8,1/2). Fixed spanner (opposing sides 12 mm, 17 mm, 19 mm). Adjustable wrench, Spring bender Vacuum pump. Hexagonal wrench Manifold gauge, charging hose, vacuum (opposing sides 4 mm) pump adaptor Gas leak inspection fluid or soapy water Electric gas leak detector for HFC refrigerant*2)
Air purging Gas leak inspection
*1) You can use the conventional (R22) flaring tool. If you need to buy a new tool, buy the R410A type. *2) Use when it is necessary to detect small gas leaks. For other installation work, you should have the usual tools, such as screwdrivers (+,-), a metal-cutting saw, an electrical drill, a hole core drill (65 or 70 dia.), a tape measure, a level, a thermometer, a clamp meter, an insulation tester, a voltmeter, etc.

Type of work Refrigerant charging Table 4 Tools for serving Ordinary tools R410A tools Electronic scale for refrigerant charging. Refrigerant cylinder. Charging orifice and packing for refrigerant cylinder

Brazing part*1)

(Replacing

refrigerating

cycle Nitrogen blow set (be sure to use nitrogen blowing for all brazing), and brazing machine
*1) Always replace the dryer of the outdoor unit at the same time. The replacement dryer is wrapped in a vacuum pack. Replace it last among the refrigerating cycle parts. Start brazing as soon as you have opened the vacuum pack, and begin the vacuuming operation within 2 hours.

11.2.2. R410A tools

1. Copper tube gauge for clearance adjustment (used when flaring with the conventional flaring tool (clutch type)) This gauge makes it easy to set the clearance for the copper tube to 1.0-1.5 mm from the clamp bar of the flaring tool.
Fig. 1 Copper tube gauge for clearance adjustment
2. Flaring tool (clutch type) In the R410A flaring tool, the receiving hole for the clamp bar is enlarged so the clearance from the clamp bar can be set to 0-0.5 mm, and the spring inside the tool is strengthened to increase the strength of the pipeexpanding torque. This flaring tools can also be used with R22 piping, so we recommend that you select it if you are buying a new flaring tool.
Fig. 2 Flaring tool (clutch type)

3. Torque wrenches

Fig. 3 Torque wrenches Table 5 Conventional wrenches mm x 18 N.m (180 kgf.cm) mm x 42 N.m (420 kgf.cm) mm x 55 N.m (550 kgf.cm) mm x 65 N.m (650 kgf.cm) R410A wrenches mm x 18 N.m (180 kgf.cm) mm x 42 N.m (420 kgf.cm) mm x 55 N.m (550 kgf.cm) mm x 65 N.m (650 kgf.cm)

For For For For

1/4 3/8 1/2 5/8
(opposite (opposite (opposite (opposite

side side side side

x x x x
torque) torque) torque) torque)
4. Manifold gauge Because the pressure is higher for the R410A type, the conventional type cannot be used.
Table 6 Difference between R410A and conventional high/low-pressure gauges Conventional gauges R410A gauges High-pressure gauge (red) -76 cmHg - 35 kgf/cm 3 -0.1 - 5.3 MPa -76 cmHg - 53 kgf/cm 3 Low-pressure gauge (blue) -76 cmHg - 17 kgf/cm 3 -0.1 - 3.8 MPa -76 cmHg - 38 kgf/cm 3
The shape of the manifold ports has been changed to prevent the possibility of mistakenly charging with another type of refrigerant.
Table 7 Difference between R410A and conventional manifold port size Conventional gauges R410A gauges 7/16 UNF 20 threads 1/2 UNF 20 threads

Port size

b. Copper pipes Use only copper pipes with the thickness given in table 10, and with minimal impurities. Because the surface of the pipe is exposed, you should take special care, and also take measures such as marking the pipes to make sure they are easily distinguished from other piping materials, to prevent mistaken use. 3. Precautions during refrigerant piping work Take the following precautions on-site when connecting pipes. (Keep in mind that the need to control the entry of moisture and dust is even more important that in conventional piping). a. Keep the open ends of all pipes sealed until connection with AC equipment is complete. b. Take special care when doing piping work on rainy days. The entering of moisture will degrade the refrigerating machine oil, and lead to malfunctions in the equipment. c. Complete all pipe connections in as short a time as possible. If the pipe must be left standing for a long time after removing the seal, it must be thoroughly purged with nitrogen, or dried with a vacuum pump.
11.4. Installation, transferring, servicing
11.4.1. Inspecting gas leaks with a vacuum pump for new installations (Using new refrigerant piping)
1. From the viewpoint of protecting the global environment, please do not release refrigerant into the atmosphere. a. Connect the projecting side (pin-pushing side) of the charging hose for the manifold gauge to the service port of the 3-way valve. (1) b. Fully open the handle Lo of the manifold gauge and run the vacuum pump. (2) (If the needle of the low-pressure gauge instantly reaches vacuum, re-check step a).) c. Continue the vacuum process for at least 15 minutes, then check to make sure the low-pressure gauge has reached -0.1 MPa (-76 cmHg). Once the vacuum process has finished, fully close the handle Lo of the manifold gauge and stop the vacuum pump operation, then remove the charging hose that is connected to the vacuum pump adaptor. (Leave the unit in that condition for 1-2 minutes, and make sure that the needle of the manifold gauge does not return.) (2) and (3) d. Turn the valve stem of the 2-way valve 90 counter-clockwise to open it, then, after 10 seconds, close it and inspect for a gas leak (4) e. Remove the charging hose from the 3-way valve service port, then open both the 2-way valve and 3-way valve. (1) (4) (Turn the valve stem in the counter-clockwise direction until it gently makes contact. Do not turn it forcefully). f. Tighten the service port cap with a torque wrench (18 N.m (1.8 kgf.m)). (5) Then tighten the 2-way valve and 3-way valve caps with a torque wrench (42 N.m (4.2 kgf.m)) or (55 N.m (5.5 kgf.m)). (6) g. After attaching each of the caps, inspect for a gas leak around the cap area. (5) (6) Precautions Be sure to read the instructions for the vacuum pump, vacuum pump adaptor and manifold gauge prior to use, and follow the instructions carefully. Make sure that the vacuum pump is filled with oil up to the designated line on the oil gauge. The gas pressure back flow prevention valve on the charging hose is generally open during use. When you are removing the charging hose from the service port, it will come off more easily if you close this valve.

Location or problem

Check location

F17 F20

-02 -01 -02

F21 F26 F27

-01 -01 -01

-05 -01

-05 F30 -01

-01 -02 -06 -10 -05 -06

-21 -51

-02 -12 -11

Drain level Float switch problem Drain pump and drain pipe, indoor unit connectors CN-DRMTR&CN-TH2 Louver switch problem Louver motor, decorative panel connection terminal, or indoor unit louver motor connectors D.C. Fan motor problem Indoor unit D.C.Fan motor or connection terminals Indoor temperature sensor Indoor temperature sensor lead wire or problem indoor unit connector or CN-TH2 Remote control thermistor Remote control thermistor problem Pipe temp. sensor problem Pipe temperature sensor lead wire or indoor (indoor unit) unit connector CN-TH1 Remote control transmission Remote control unit cable and connection problem terminals Indoor/outdoor unit Indoor/outdoor unit connection cable and disconnection problem connection terminals, or indoor unit and outdoor unit power supplies (indoor side) Indoor/outdoor unit connection Indoor/outdoor unit connection wire (indoor error problem side) Indoor/outdoor unit Indoor/outdoor unit connection cable and disconnection problem connection terminals, or indoor unit and outdoor unit power supplies (outdoor side) Indoor/outdoor unit connection Indoor/outdoor unit connection wire (outdoor problem side) System problem Total capacity for the number of indoor units is insufficient, or over check the total capacity and the number of indoor units Open phase, or reversed phase Check the main power supply terminal board of supply connections, or switch over any two of the power supply wires. Suction pressure protection Insufficient refrigerant High-pressure cut-off Check the Refrigeration system 4 way valve information Check the 4 way valve or lead wire Refrigerant system problem Insufficient refrigerant or valve operation (closed) Compressor overcurrent Open phase or lock in compressor protection Compressor discharge temp. Insufficient refrigerant protection Heat exchanger outlet Heat exchanger outlet temperature sensor temperature sensor problem (COND TEMP) lead wire, connector CN-TH1 Compressor discharge Compressor discharge temperature sensor temperature sensor problem (DIS T. TEMP) lead wire, connector CN-DIS High pressure switch open High-pressure switch lead wire, connector circuit problem CN-PSW1 Low pressure sensor problem Low pressure sensor lead wire, connector Current detector open circuit Outdoor unit P.C. B (NOISE FILTER) fault or connector ACN2

Temperature -6C HC kW 10.22 9.66 9.10
Model CS-F50DB4E5 Heating capacity 15.0kW
Heating capacities are based on conditions 3 phase, 50Hz 400V Indoor temp. 20C D.B. Outdoor temp. 7C D.B. 6C W.B. Standard air volume 30.3 m3/min Air Entering 0C HC kW 13.13 12.38 11.70 Condenser (C D.B.) 6C 12C HC HC kW kW 15.75 18.30 15.00 18.00 14.25 17.25 Ambient Return Air D.B. 25 Temperature -6C IPT kW 3.52 3.72 3.92 Air Entering 0C IPT kW 4.02 4.28 4.53 Condenser (C D.B.) 6C 12C IPT IPT kW kW 4.78 5.63 5.03 5.83 5.28 5.96
Temperature -6C HC kW 10.95 10.35 9.75

13.4. Reaching distance

Cooling Mode CS-F24DB4E5

CS-F28DB4E5

CS-F34DB4E5

CS-F43DB4E5

CS-F50DB4E5

Heating Mode CS-F24DB4E5

13.5. Sound data
13.6. Sound measuring point

13.6.1. Indoor Unit

13.6.2. Outdoor Unit

13.7. Fan performance

CS-F24DB4E5 (220/230/240V)
ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 18 0.17 0.Indoor Unit CS-F24DB4E5 Me 16 0.15 0.Outdoor Unit CU-B24DBE5 Hi 60 0.61/0.62/0.63 0.13/0.14/0.15 660/685/705

m3/min A kW r/min

Lo 15 0.12 0.02 330
CS-F28DB4E5 (220/230/240V)
ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 20 0.20 0.Indoor Unit CS-F28DB4E5 Me 18 0.17 0.Outdoor Unit CU-B28DBE5 Hi 63 0.64/0.65/0.66 0.14/0.15/0.16 690/710/730

Lo 16 0.15 0.025 370

ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 20 0.20 0.Indoor Unit CS-F28DB4E5 Me 18 0.17 0.Outdoor Unit CU-B28DBE8 Hi 63 0.64/0.65/0.66 0.14/0.15/0.16 690/710/730
ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 26 0.15 75.Indoor Unit CS-F34DB4E5 Me 24 0.12 58.Outdoor Unit CU-B34DBE5/8 Hi 90 1.03 223.30 781/774

Lo 22 0.10 47.00 456

ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 30 0.21 109.Indoor Unit CS-F43DB4E5 Me 27 0.17 83.Outdoor Unit CU-B43DBE8 Hi 96 1.06 228.79 769/763

Lo 24 0.12 57.00 496

ITEM/MODEL MODE Air Volume Running Current Power Consumption Fan Speed Hi 30 0.24 100.Indoor Unit CS-F50DB4B5 Me 27 0.17 83.Outdoor Unit CU-B50DBE8 Hi 103 1.16 266.00 808/818

Lo 24 0.12 57.00 509

13.8. Discharge and suction pressure
SATURATION TEMPERATURE OF DISCHARGE AND SUCTION PRESSURE HEATING
13.9. Operating characteristics
Model Main Power Source Voltage Frequency S.C. Compressor Motor R.C. (A) IPT (kW) Indoor Unit Fan Motor R.C. IPT Outdoor Unit Fan Motor R.C. IPT Electrical Data (50Hz) Current. (A) Power Consumption (kW) COOL / HEAT 2.46 / 2.31 2.51 / 2.36 2.57 / 2.41 2.74 / 2.55 2.80 / 2.60 2.85 / 2.65 2.74 / 2.55 2.80 / 2.60 2.85 / 2.65 3.76 / 3.81 3.81 / 3.86 3.86 / 3.91 3.63 / 3.63 3.68 / 3.68 3.73 / 3.73 4.60 / 4.54 4.65 / 4.59 4.70 / 4.64 5.01 / 4.98 5.06 / 5.03 5.11 / 5.08

18 Exploded View (Outdoor Unit)
18.1. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8
18.2. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8
19 Replacement Part List (Outdoor Unit)
19.1. CU-B24DBE5 CU-B28DBE5 CU-B28DBE8
NO. PART DESCRIPTION BASE PAN ASSY COMPRESSOR ANTI-VIBRATION BUSHING NUT FOR COMP. MOUNT. PACKING CRANKCASE HEATER CONDENSER COMPLETE TUBE ASSY(CAPILLARY TUBE) PIPE HOLDER RUBBER 4-WAYS VALVE COMPLETE DISCHARGE MUFFLER 4-WAYS VALVE HEATING PRESSURE SWITCH TUBE ASSY(EXP.VALVE AND STRAINER) 3-WAYS VALVE(LIQUID) 3-WAYS VALVE(GAS) TUBE RECEIVER STRAINER PIPE HOLDER RUBBER HOLDER-SERVICE VALVE SOUND-PROOF BOARD ASSY TUBE RECEIVER SOUND PROOF MATERIAL-COMP V-COIL COMPLETE V-COIL COMPLETE PIPE SENSOR PIPE SENSOR SPRING FOR SENSOR CABINET REAR PLATE COMPLETE CONTROL BOARD ASSY TERMINAL BOARD ASSY TERMINAL BOARD ASSY CAPACITOR-FAN MOTOR (3/460) (3.5/460) CAPACITOR-COMP. (45/370) (50/370) HOLDER CAPACITOR ELECTRONIC CONTROLLER (MAIN) MAGNETIC RELAY TRANSFORMER TERMINAL COVER NUT FOR TERMINAL COVER BRACKET FAN MOTOR ASSY SCREW-BRACKET FAN MOTOR FAN MOTOR AC 70W SINGLE SCREW-BRACKET FAN MOTOR PROPELLER FAN NUT for PROPELLER FAN CABINET TOP PLATE COMPLETE PIPE COVER (FRONT) PIPE COVER (BACK) CABINET FRONT PLATE DISCHARGE GRILLE CABINET SIDE PLATE ASSY WIRE NET CABINET FRONT PLATE COMPLETE HANDLE LEADWIRE-COMPRESSOR WIRINF COVER AND BAND INSTALLATION INSTRUCTION ACCESSORY COMPLETE (DRAIN ELBOW) ELECTRO MAGNETIC SWITCH QTY. CU-B24DBE5 CWD52K1102 5JS315DAM21 CWH50055 CWH561049 CWB811017 CWA341017 CWB32C1706 CWT07K1306 CWG251016 CWB00C1031 CWB121013 CWB001026J CWA101007 CWT024068 CWB011252 CWB011251 CWB141031 CWB111032 CWG251016 CWD911425 CWH151078 CWB14K1014A CWG302338 CWA43C2169 CWA43C2128J CWA50C2292 CWA50C2293 CWH711010 CWE02C1029 CWH10K1063 CWA28K1085J CWA28K1076J DS461305QP-A DS371456CPNA CWH30060 CWA73C1902 K6C2A9A00001 CWA401060 CWH171012 CWH7080300J CWD54K1010 CWH551040J CWA951366 CWH551040J CWH001019 CWH561038J CWE03C1039 CWD601074A CWD601081A CWE061118A CWE201073 CWE04K1019A CWD041063A CWE06C1147 CWE161008 CWA67C5994 CWH82C1105 CWF612864 CWG82C2030 CU-B28DBE5 5JS330DAF21 CWB32C1716 CWT07K1302 CWT024146 DS461355QP-A DS371506CPNA CWH30060 CWA73C1904 CU-B28DBE8 5JS330PBA21 CWH10K1064 CWA28K1109 CWA73C1905 CWH171015 CWA67C5909 K6C4E8A00003