Panasonic CS-F24DTE5 Service Manual
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CONTENTS
CS-F24DTE5 CU-L24DBE5
CS-F28DTE5 CU-L28DBE5
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© 2004 Panasonic HA Air-Conditioning (M) Sdn Bhd
(11969-T). All rights reserved. Unauthorized copying
and distribution is a violation of law.
Order No. MAC0412075C2
Air Conditioner
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Table of Contents
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Summary of Contents for Panasonic CS-F24DTE5
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Page 1: Table Of Contents
2.1. New design 2.10. Wired Remote Control 2.2. Such quietness! 2.11. Wireless Remote Control 2.3. Easy installation 2.12. Group Control Equipment © 2004 Panasonic HA Air-Conditioning (M) Sdn Bhd (11969-T). All rights reserved. Unauthorized copying and distribution is a violation of law. - Page 2 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 3 Specification 9.12. Indoor Air Volume Up Control (DC Fan Motor Type Only) 3.1. Product Specification 4 Dimensions 10 Installation Instruction 4.1. CS-F24DTE5 CS-F28DTE5 10.1. Pipe length 4.2. CU-L24DBE5 CU-L28DBE5 10.2. Refrigerant additional charge 5 Refrigeration Cycle 10.3.
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Page 3: Service Information
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 1 Service Information Notice of Address setting for NEW Ceiling / 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. -
Page 4: Operation Range
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 1.4. Operation range 1.4.1. 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. -
Page 5: Features
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2 Features 2.1. New design 3. Adoption of wing-shaped vanes 2.1.1. Gentle curved styling • • • • The base has gentle curves which express a functional beauty. It spreads the air quietly over a wide area. -
Page 6: Easy Installation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.3. Easy installation 2.5. Easy maintenance 2.3.1. Easy suspension 2.5.1. Long life filter (standard equipment) • • • • A suspension bolt fixing bracket with 4-point support is attached to the main unit, which increases the space •... -
Page 7: Low-Noise Outdoor Units
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.7. Low-noise outdoor units [Product features] 2.7.1. Low-noise design improves 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 reduces air flow noise. -
Page 8: Improved Workability
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.8. Improved workability 2.8.1. 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 units need to be replaced. -
Page 9: A Brand-New Control Method
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.8.8. 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 also improve appearance. -
Page 10: Wired Remote Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.10. Wired Remote Control 1. 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. 2. Has a build-in thermistor, allowing indoor temperature detection in accordance with indoor conditions by switching with main unit thermistor. -
Page 11: Group Control Equipment
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 2.12. Group Control Equipment Group control by one remote [Remote side] • • • • Optional wired remote control • • • • All air conditioner units are control CZ-RD513C controlled as a whole by remote control. -
Page 12: Specification
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 3 Specification 3.1. Product Specification 3.1.1. CS-F24DTE5 CU-L24DBE5 ITEM / MODEL Indoor Unit Outdoor Unit Main Body CS-F24DTE5 CU-L24DBE5 Remote CZ-RD513C (Wired) Control CZ-RL513T (Wireless) Cooling Capacity BTU/h 21,500 Heating Capacity BTU/h 24,200 Refrigerant Charge-less... - Page 13 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 3.1.2. CS-F28DTE5 CU-L28DBE5 ITEM / MODEL Indoor Unit Outdoor Unit Main Body CS-F28DTE5 CU-L28DBE5 Remote CZ-RD513C (Wired) Control CZ-RL513T (Wireless) Cooling Capacity BTU/h 24,200 Heating Capacity BTU/h 27,300 Refrigerant Charge-less Standard Air Volume for High,...
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Page 14: Dimensions
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 4 Dimensions 4.1. CS-F24DTE5 CS-F28DTE5... -
Page 15: Cu-L24Dbe5 Cu-L28Dbe5
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 4.2. CU-L24DBE5 CU-L28DBE5... -
Page 16: Refrigeration Cycle
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 5 Refrigeration Cycle... -
Page 17: Block Diagram
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 6 Block Diagram 6.1. CS-F24DTE5 CS-F28DTE5... -
Page 18: Cu-L24Dbe5 Cu-L28Dbe5
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 6.2. CU-L24DBE5 CU-L28DBE5... -
Page 19: Wiring Diagram
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 7 Wiring Diagram 7.1. CS-F24DTE5 CS-F28DTE5... -
Page 20: Cu-L24Dbe5 Cu-L28Dbe5
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 7.2. CU-L24DBE5 CU-L28DBE5... -
Page 21: Operation Details
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 8 Operation Details 8.1. Wired Remote Control (Optional part) Name and function of each part OFF/ON button Used to start and stop the operation. FAN SPEED button Used to select the fan speed of high (HI), medium (MED), low (LO) or auto (AUTO). -
Page 22: Wireless Remote Control (Optional Part)
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 8.2. Wireless Remote Control (Optional part) Name and function of each part OFF/ON button Used to start and stop the operation. ODOUR WASH button FILTER RESET button Press to cancel the “FILTER” indicator light on the control panel. -
Page 23: Operation Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9 OPERATION CONTROL Description of basic control functions 9.1. Operation Mode 1. Thermostat control 2. Depend on differences between room temperature and setting temperature, Compressor running frequency will be decided and start operation. Temperature differences become same as below table, then thermostat is off. - Page 24 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 − − − − Unit using DC motor As follow the below figure, fan speed changing operation (program air). (rpm center B and is different if capacity rank is different) − − − − Unit using AC motor When 1st thermostat on condition from operation start, fan speed is hi (same as manual fan speed), after 2nd thermostat on condition, fan speed change to medium speed (same as manual medium fan speed).
- Page 25 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.3.4. Freezing prevention control • • • • During cool or dry mode operation, if indoor evaporator temperature is going down, freezing prevention control is operated. • • • • Detail of Freezing prevention control is as follows;...
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Page 26: Drain Pump Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.3.6. Drain pump control • • • • During cooling, dry, or defrost operation, drain pump operate by following the below table. • • • • When compressor start, drain pump operation start after 10 second of indoor fan starting. -
Page 27: Defrost Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Fan speed auto • • • • When operation start, or during operation, fan speed control by detecting indoor heat exchanger as follows: • • • • (K10 = Indoor heat exchanger temperature, depend on indoor type) 9.4.2. - Page 28 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.4.6. Heating high temperature protection • • • • During heating operation, when outdoor temperature is more than 35°C for 15 minute, compressor stop to protect compressor. • • • • After 3 minute (re-start delat control) waiting, if thermostat on condition, outdoor unit re-start.
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Page 29: Louver Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.5. Louver Control 9.5.1. Louver control for cassette type • • • • When power is on, at the same time, louver start initializing toward to close Direction. • • • • During operation, stopping, thermostat off condition, louver angle set manual or auto depend on remote controller setting. - Page 30 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.5.2. Ceiling type louver control • • • • When power is on, at the same time, louver initialize 2 times. • • • • During operation, stopping, thermostat is off condition, louver angle change as below table by manual setting or auto setting of remote controller.
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Page 31: Odour Removing Operation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.6. Odour Removing Operation • • • • During stop condition, or cooling operation, when pushing the [ODOUR] button for 5 second, operation change to the odour removing operation. • • • • Operation detail is as follows;... -
Page 32: Energy Save Operation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.7. Energy Save Operation • • • • During cooling operation, or heating operation, when pushing the [ECONOMY] button in the wired remote controller, energy save operation start and [ECO] sign is displayed at LCD display panel of wired remote controller ([ECONOMY] sign is displayed at LCD display panel of wireless remote controller). -
Page 33: Pump Down Operation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 9.11. Pump Down Operation • • • • When pushing the [PUMP DOWN] button on the outdoor PCB for 1 second, pump down operation start. Detail of pump down operation is shown at below table. -
Page 34: Installation Instruction
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10 Installation Instruction 10.1. Pipe length • • • • CORRECTION OF COOLING CAPACITY AND HEATING CAPACITIES 1. 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. -
Page 35: Refrigerant Additional Charge
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.2. Refrigerant additional charge 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 30 m. -
Page 36: Indoor Unit Installation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.4. Indoor unit installation CEILING TYPE AIR CONDITIONERS INSTALLATION INSTRUCTIONS Precautions in terms of safety Carry out installation work with reliability after throughout reading of this “Precautions in terms of safety”. • • • • Precautions shown here are differentiated between Warnings Cautions . - Page 37 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Cautions Carry out Earthing work. Drain piping should be made to ensure secure drainage Do not connect the Earth return to the gas pipe, according to the manual for installation work and carry out the water line pipe, lightning rod and telephone lines.
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Page 38: Installation Of Indoor Unit
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • Make sure the ventilation fan for smoke-collection hood on a cooking table has sufficient capacity so that it draws oily steam which should not flow into the suction of the air conditioner. - Page 39 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Fastening the hanging bracket * Use either W3/8 or M10 bolts and nuts (local supplied) • • • • Fastening the hanging bracket Warning Be sure to tighten the nut and bolt to prevent the unit from falling.
- Page 40 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.4.4. Refrigerant piping Refrigerant is charged to the outdoor unit. For details, see the manual for installation work of outdoor unit.(Additional charging, etc.) 1. Brazing for piping. a. Execute brazing before tightening the flare nut.
- Page 41 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 In the case of left piping Be sure to perform heat insulation on the drain piping. Caution If insulation is insufficient, dew may form. 1. Remove both the internal and external plugs. This causes water leakage.
- Page 42 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.4.7. Electrical wiring As to the main power source and cable size of outdoor unit, read the installation manual attached to the outdoor unit. The units must be connected to the supply cables for fixed wiring by qualified technician.
- Page 43 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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.
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Page 44: Hand Over
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • First, press the OFF/ON ( ) button. • • • • Then press the TEST RUN button within 1 minute of pressing the OFF/ON ( ) button. • • • • Next, select the operation modes. -
Page 45: Outdoor Unit Installation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.5. Outdoor unit installation AIR CONDITIONERS OUTDOOR UNIT INSTALLATION INSTRUCTIONS Precautions in terms of safety Carry out installation work with reliability after thorough reading of this “Precautions in terms of safety”. • • • • Precautions shown here are differentiated between Warnings Cautions . - Page 46 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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.
- Page 47 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 b. Prevention measure for refrigerant piping Prevention measure for refrigerant piping is very important work to prevent water-dust-rubbish from getting in. All piping terminals needs sealing such as shown below. Place Period of work Method of seal...
- Page 48 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 For the use of a gas cylinder without siphon inside, turn it upside down and use it. (We recommend manifold with sight glass.) Caution Do not use a “CHARGE CYLINDER”. Caution As a rule, please collect all existing refrigerants in the system outside the system when the refrigerant leakage occurs by the system.
- Page 49 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 12. Be sure to leave enough space around the outdoor unit to maintain proper performance and to allow access for routine maintenance. • • • • Allow enough space from any obstacles as shown in Fig. 1.2 below in order to prevent short-circuits from occurring.
- Page 50 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • If a drain pipe needs to be installed, insert the accessory drain elbow into the mounting hole at the bottom of the outdoor unit, and connect a hose with an inside diameter of 15mm to this drain elbow.
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Page 51: Charging With Refrigerant
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 3. Notes when connecting the refrigerant pipes. • • • • Use clean copper, pipes with no water or dust on the insides. • • • • Use phosphorus-free, unjointed copper pipes for the refrigerant pipes. - Page 52 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • Pump down operation − − − − Operate the pump down according to the following procedures. Procedure Notes 1. Confirm the valve on the liquid side and the gas side is surely open.
- Page 53 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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...
- Page 54 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.5.10. Connecting power supply cables CAUTION • • • • For three phase model, never operate the unit by pressing the electromagnetic switch. • • • • Never correct the phase by switching over any of the wires inside the unit.
- Page 55 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 NOTE If the self-diagnosis function reports a problem but more than one problem has developed at the indoor and/or outdoor units, the problem display on the remote control unit may not match the LED display on the outdoor unit printed circuit board. In such cases, check both locations and remove the causes of the problems.
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Page 56: Wired Remote Control Installation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.6. Wired remote control installation Wired Remote Control Installation Manual • • • • Before installing the wired remote controller, be sure to thoroughly read the “Notes with regard to safety” section of the installation manual provided with the indoor unit. - Page 57 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 If no displays appear on the remote controller, check while referring to “If no remote controller displays appear” in “5 Test operation”. • • • • The remote control cable is live during use, so please be careful with it.
- Page 58 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • Strip the end of the remote control cable which is to be connected to the remote controller. (Refer to the illustration below) • • • • Route the remote control cable inside the lower case in accordance with the intended feeding- out direction. (Refer to the illustration below.)
- Page 59 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 If remote control cable is embedded If installing with the remote control cable exposed 1. Embed an outlet box (JIS C 8336) into the wall, and then secure 1. Secure the remote controller base plate to the wall with two the remote controller base plate to the outlet box with the two accessory 4 mm screws.
- Page 60 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Automatic address resetting for group control • • • • The address settings for group control (air conditioner Nos. 1 to 16) can be reset automatically. 1. When operation is stopped, press for 5 seconds, continue the TEST RUN switch to display “00” (will be LOCAL MODE).
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Page 61: Test Operation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.6.5. Test operation • • • • Turn on the main power. • • • • After 3 minutes have passed since the power was turned on, press the OFF/ON switch on the remote controller. (No operation occurs within 3 minutes after the power was turned on.) - Page 62 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • You can then switch between the display for the previous problem and the problem before that by pressing the UP (TIMER) DOWN (TIMER) switches. • • • • Press the CHECK switch once more to return to the normal display.
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Page 63: Wireless Remote Control Installation Manual
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.7. Wireless remote control installation manual Wireless Remote Control Installation Manual • • • • Before installing the wireless remote controller, be sure to thoroughly read the “Notes with regard to safety” section of the installation manual provided with the indoor unit. - Page 64 Attach the receptor unit onto the decorative panel of the indoor unit as shown in the figure below. 1. Remove the “corner cover” at the decorative panel indicate “Panasonic” logo left side. 2. Attach the receptor unit which same position.
- Page 65 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 1. Route the joint cord for wiring as shown in the figure (figure of the back of decorative panel) below. Pass the cord through the hook of the decorative panel, taking care that the cord does not run on the heat insulator, etc.
- Page 66 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Receptor unit (for ceiling type) assembly procedure Attach the receptor unit onto the indoor main unit as shown in the figure below. Remove the air-intake grille and the side cover. To remove the side cover, remove the fixing screw each on the left and the right and pull the side cover towards you.
- Page 67 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.7.4. Address setting for wireless remote controller and receptor unit (only when using more than one indoor unit) • • • • Only the air conditioner units which receptor unit address numbers match the remote controller address number can be operated.
- Page 68 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 NOTE • • • • If the batteries are replaced or the remote controller is reset, the address setting will return to ADDRESS1, so you will need to repeat the address setting again. All setting details which are stored in memory will be cleared, so you will need to repeat the setting.
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Page 69: Emergency Operation
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 [Manual setting] 10.7.5. Emergency operation • • • • If you do not have the wireless remote controller (because the batteries are weak, or some other reason prevents the wireless remote controller from being used), emergency operation can be carried out at receptor unit. -
Page 70: Twin And Triple
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 10.8. Twin and triple 10.8.1. Twin and Triple Operation • • • • Simultaneous air conditioning of wide spaces and corners is possible. Indoor units with 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. -
Page 71: Installation And Servicing Air Conditioner Using R410A
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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 earth’s upper stratosphere (20 to 40 km above the earth), measures have been... -
Page 72: Tools For Installing/Servicing Refrigerant Piping
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 d. R410A refrigerating machine oil Conventionally, mineral oil or a synthetic oil such as alkylbenzene has been used for R22 refrigerating machine oil. Because of the poor compatibility between R410A and conventional oils like mineral oil, however, there is a tendency for the refrigerating machine oil to collect in the refrigerating cycle. -
Page 73: R410A Tools
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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... - Page 74 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 5. Charging hose • • • • The pressure resistance of the charging hose has been raised to match the higher pressure of R410A. The hose material has also been changed to suit HFC use, and the size of the fitting has been changed to match the manifold ports.
- Page 75 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 8. Electronic scale for refrigerant charging • • • • Because of the high pressure and fast vaporizing speed of R410A, the refrigerant cannot be held in a liquid phase inside the charging cylinder when charging is...
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Page 76: Refrigerant Piping Work
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 11.3. Refrigerant piping work 11.3.1. Piping materials It is recommended that you use copper and copper alloy jointless pipes with a maximum oil adherence of 40 mg/10m. Do not use pipes that are crushed, deformed, or discolored (especially the inside surface). If these inferior pipes are used, impurities may clog the expansion valves or capillaries. - Page 77 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Table 11 R410A flaring dimensions Nominal Outside Wall thickness A (mm) diameter diameter (mm) R410A flaring Conventional flaring tool (mm) tool, clutch type Clutch type Wing-nut type 6.35 0 - 0.5 1.0 - 1.5 1.5 - 2.0 9.52...
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Page 78: Installation, Transferring, Servicing
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 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. - Page 79 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 11.4.2. Transferring (Using new refrigerant piping) 1. Removing the unit a. Collecting the refrigerant into the outdoor unit by pumping down The refrigerant can be collected into the outdoor unit (pumping down) by pressing the TEST RUN button, even when the temperature of the room is low.
- Page 80 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 3. Fully open the handle Lo of the manifold gauge, turn on the power of the vacuum pump and continue the vacuum process for at least one hour. 4. Confirm that the low pressure gauge shows a reading of -0.1 Mpa (-76 cmHg), then fully close the handle Lo, and turn off the vacuum pump.
- Page 81 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 11.4.6. Brazing As brazing requires sophisticated techniques and experiences, it must be performed by a qualified person. In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to proceed with brazing while letting dry nitrogen gas (N ) flow.
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Page 82: Troubleshooting Guide
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 12 Troubleshooting Guide 12.1. Self-diagnosis error code table • • • • The display screen on the wired remote control unit and the self-diagnosis LEDs (green) on the outdoor unit printed circuit board in the outdoor unit can be used to indicate where the location of a problem is. - Page 83 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 Wired remote Outdoor unit printed circuit board LED Location or problem Check location control unit display Abnormal Detail 302 303 304 305 306 307 308 309 dispaly dispaly Outlet temperature sensor Outlet temperature sensor lead wire,...
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Page 84: Replacement Parts
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 13 Replacement Parts 13.1. Indoor unit... - Page 85 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5...
- Page 86 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5...
- Page 87 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 PART DESCRIPTION QTY. CS-F24DTE5 CS-F28DTE5 ← ← ← ← CABINET TOP PLATE CWE001015 ← ← ← ← CABINET FRONT PLATE CWG07K1009 ← ← ← ← CABINET SIDE PLATE (L) CWD63K1001 ← ← ← ← VANE SUPPORTER (L) CWG071146 ←...
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Page 88: Outdoor Unit
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 13.2. Outdoor unit... - Page 89 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5...
- Page 90 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5...
- Page 91 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 PART DESCRIPTION QTY. CU-L24DBE5 CU-L28DBE5 ← ← ← ← BASE PAN ASS’Y CWD52K1098 ← ← ← ← COMPRESSOR 5KD240XAA21 ← ← ← ← ANTI-VIBRATION BUSHING CWH50055 ← ← ← ← NUT FOR COMP. MOUNT. CWH4582065 ←...
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Page 92: Electronic Circuit Diagram
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14 Electronic Circuit Diagram 14.1. Indoor unit SCHEMATIC DIAGRAM 1/4 TO CN-OPT2 CN-TIMER 20k 1% 10.0k 1% 10.0k 1% 10.0k 1% 10.0k 1% 0.047 25V 0.047 25V 8 7 6 5 8 7 6 5 0.047 25V... - Page 93 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 2/4 TO CN-OPT3 TO CN-DISP R108 R138 0.01 6.3V R107 R131 R106 0.01 R130 3300p 5.1k R123 R118 2SC3052F R115 R116 R117 5.6k 1000p 1/4W 1/4W TLP421 R148 (BL) LED1 6.3V VSS3 VDD2...
- Page 94 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 3/4 2SC18741 (FA) RD16UJ (N3) RY-CON GGE-134P SY-110AV IA5-E 1.15k 1% 1/4W 600V 1A RD6.2E R110 275VAC R111 ZD10 NONE RD6.2E 2SC3052F TLP421 R113 (BL) R112 RD4.7UJ TLP421 R114 1000p 4.7k b 10k 250VAC 4.7k...
- Page 95 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 4/4 ELECTRONIC CONTROL UNIT CN-PWR 3 4 2 1 3 4 2 1 SW301 SW302 SW303 CN-LYN LND2 DC782 CN-DRV DNDN DC782 FROM CN-OPT2 CN-FM (VH9-5) SW201 FAN MOTOR IC201 C-FV1 (RED) 3 GND...
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Page 96: Outdoor Unit
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14.2. Outdoor unit SCHEMATIC DIAGRAM 1/7 TIC DIAGRAM 1/7 CU-L34DBE5 ELECTRONIC CONTROL UNIT CU-L43DBE5 C411 C405 AC250V AC250V (BLK) MAGNET RELAY LF400 LF401 4700p 4700p CH-BL DF22R-1P (BLK) CN-ACL SC-30-12JN SC-30-12JN (WE) (WE) DF22R-1P CU-L34DBE5... - Page 97 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 2/7 A TIC DIAGRAM 2/7 ACL 1 ACL 2 R105 ZNR1 33 1% 1/4W CN-Y1 RY-Y1 PIC1 200V 100 1% 1A5-E 2SC3441 RD10EB2 PIC2 200V 600V 1A 10k 1% FUSE 2 RT-P121 RT-C...
- Page 98 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 3/7 TIC DIAGRAM 3/7 k 1% 0.047 25V V R158 GB1Z 2 4 6 8 10 86 85 CN-CPU 1 3 5 7 9 R269 MN103S52GPJ C133 0.1 26 27 28 29 30 31 32 33 R257 2.2k...
- Page 99 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 EXPAND VALVE SCHEMATIC DIAGRAM 4/7 TIC DIAGRAM 4/7 1 2 3 4 5 6 1A5-E 600V 1A EGD1Z C129 ETS29AK7M1AC 450V 0.01 1/4W 1/4W 630V (FC) AMD1Z HRU8L8 (ECQE) 3A2 X 4 ALD1Z 0.47 1/2W 0.22...
- Page 100 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 5/7 A TIC DIAGRAM 5/7 1.8k 9.53k D3 1k 1% FUSE 1 TLP421 (BL) 1000p 25V IC10 2SA1366 0.01 0.01 51.1k 1WBH50- 6.3V 6.3V 464k 464k 2SA1366 0.047 0.047 10.0 464k 464k 1/4W 1%...
- Page 101 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 6/7 TIC DIAGRAM 6/7 R200 RD28ER C101 C102 0.22 HVIC1 CORE C103 C104 0.22 HVIC2 BLUE C105 C106 0.22 COMPRESSOR HVIC3 (FC) YELLOW LVIC U OUT IN(X) V OUT IN(Y) C118 IN(Z) W OUT...
- Page 102 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 SCHEMATIC DIAGRAM 7/7 TIC DIAGRAM 7/7 ELECTRONIC CONTROL UNIT ELECTRONIC CONTROL UNIT COMPLETE TABLE 1 TABLE 3 CODE No. A743401 A743564 NOTE CODE No. A743403 A743566 CT300 NONE CT25UU-P ← R205 NONE 0.03Ω CT301 NONE ←...
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Page 103: Wired Remote Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14.3. Wired remote control... -
Page 104: Wireless Remote Control
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14.4. Wireless remote control... -
Page 105: Print Pattern
CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14.5. Print pattern 14.5.1. Indoor unit • • • • INDOOR UNIT PRINTED CIRCUIT BOARD (MAIN) - Page 106 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • INDOOR UNIT PRINTED CIRCUIT BOARD (INDICATOR)
- Page 107 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 14.5.2. Outdoor unit • • • • OUTDOOR UNIT PRINTED CIRCUIT BOARD (MAIN)
- Page 108 CS-F24DTE5 CU-L24DBE5 / CS-F28DTE5 CU-L28DBE5 • • • • OUTDOOR UNIT PRINTED CIRCUIT BOARD (POWER) • • • • OUTDOOR UNIT PRINTED CIRCUIT BOARD (SERVICE) [PHAAM] Printed in Malaysia...