Daikin R24PEVLK Service Manual
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Daikin R24PEVLK Service Manual

Daikin R24PEVLK Service Manual

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SiK401005
U-MATCH Air Conditioners
[Applied Models]
Non-Inverter Pair : Cooling Only
Non-Inverter Pair : Heat Pump

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Summary of Contents for Daikin R24PEVLK

  • Page 1 SiK401005 U-MATCH Air Conditioners [Applied Models] Non-Inverter Pair : Cooling Only Non-Inverter Pair : Heat Pump...

  • Page 2: Table Of Contents

    SiK401005 Non-Inverter Pair Duct Type INTRODUCTION ..................i Part 1 SPECIFICATIONS .............1 1. MODELS LIST ...................2 Outdoor Unit ....................2 Indoor Unit....................3 2. NOMENCLATURE..................4 3. FUNCTION ....................5 4. PRODUCT DATA ..................6 Product Data at Rated Condition...............6 Electrical Data ..................13 5. PIPING DIAGRAM...................14 Part 2 FUNCTION CONTROL ............15 1.
  • Page 3 SiK401005 Cautions for Installation ................58 Dimension Data ..................58 Installation Clearance Data ..............59 Installation of Wired Controller ..............60 3. REFRIGERATION PIPING WORK ............61 Refrigeration Piping Work Procedures ............61 Caution in Connecting Pipes ..............67 Specification of Connection Pipe.............68 4. ELECTRIC WIRING WORK ..............69 Wiring Principle ..................69 Electric Wiring Design ................70 Part 4...

  • Page 4: Introduction

    SiK401005 1. INTRODUCTION Safety Cautions Cautions and Be sure to read the following safety cautions before conducting repair work. Warnings The caution items are classified into “ Warning” and “ Caution”. The “ Warning” items are especially important since they can lead to death or serious injury if they are not followed closely.

  • Page 5: Cautions Regarding Products After Repair

    SiK401005 Caution Do not repair the electrical components with wet hands. Working on the equipment with wet hands can cause an electrical shock. Do not clean the air conditioner by splashing water. Washing the unit with water can cause an electrical shock. Be sure to provide the grounding when repairing the equipment in a humid or wet place, to avoid electrical shocks.
  • Page 6 SiK401005 Be sure to install the product securely in the installation frame mounted on a For integral units window frame. only If the unit is not securely mounted, it can fall and cause injury. Be sure to use an exclusive power circuit for the equipment, and follow the technical standards related to the electrical equipment, the internal wiring regulations and the instruction manual for installation when conducting electrical work.

  • Page 7: Inspection After Repair

    SiK401005 1.1.3 Inspection after Repair Warning Check to make sure that the power cable plug is not dirty or loose, then insert the plug into a power outlet all the way. If the plug has dust or loose connection, it can cause an electrical shock or fire.

  • Page 8: Using Icons List

    SiK401005 1.1.5 Using Icons List Icon Type of Description Information Note A “note” provides information that is not indispensable, but may nevertheless be valuable to the reader, such as tips and Note: tricks. Caution A “caution” is used when there is danger that the reader, through incorrect manipulation, may damage equipment, loose Caution data, get an unexpected result or has to restart (part of) a...

  • Page 9: Specifications

    SiK401005 Part1 SPECIFICATIONS 1. MODELS LIST ..................2 Outdoor Unit ..................... 2 Indoor Unit....................3 2. NOMENCLATURE..................4 3. FUNCTION ....................5 4. PRODUCT DATA ..................6 Product Data at Rated Condition.............. 6 Electrical Data ..................13 5. PIPING DIAGRAM.................. 14 SPECIFICATIONS...

  • Page 10: Models List

    SiK401005 1. MODELS LIST 1.1 Outdoor Unit Power Model Refrigerant Appearance Supply R24PEVLK 220V 1Ph 60Hz RY24PEVLK R30PEVLK 220V 1Ph 60Hz RY30PEVLK R36PEVLK 220V 1Ph 60Hz RY36PEVLK R42PETLK 220V 3Ph 60Hz RY42PETLK R42PEYLK 380V 3Ph 60Hz RY42PEYLK R48PETLK 220V 3Ph 60Hz...

  • Page 11: Indoor Unit

    SiK401005 1.2 Indoor Unit Nominal Capacity Power Type Indoor Model Outdoor Model Cooling/Heating Refrigerant Appearance Supply (Btu/h) R24PEVLK 23200/- FDM24PEVLK RY24PEVLK 22500/25600 R30PEVLK 28000/- FDM30PEVLK RY30PEVLK 28000/31700 R36PEVLK 32000/- FDM36PEVLK RY36PEVLK 32000/35800 R42PETLK 41000/- Duct 220V 1Ph 60Hz Type RY42PETLK...

  • Page 12: Nomenclature

    SiK401005 2. NOMENCLATURE SPECIFICATIONS...

  • Page 13: Function

    SiK401005 3. FUNCTION Function Description When unit restarts after power off, it will run under the previous status and Memory function the mode and parameters will be kept the same. It can set the time when to start/stop the unit separately. Meanwhile the Timing function setting can run circularly.

  • Page 14: Product Data

    SiK401005 4. PRODUCT DATA 4.1 Product Data at Rated Condition Indoor unit FDM24PEVLK FDM30PEVLK FDM36PEVLK Model Outdoor unit R24PEVLK R30PEVLK R36PEVLK Nominal Cooling Capacity Btu/h 23200 28000 32000 Power Input Cooling 2.65 3.30 4.00 2.57 2.48 2.35 Indoor Unit FDM24PEVLK...
  • Page 15 SiK401005 Continued Indoor unit FDM42PEVLK FDM42PEVLK Model Outdoor unit R42PETLK R42PEYLK Nominal Cooling Capacity Btu/h 41000 41000 Power Input Cooling 5.28 5.28 EER/COP 2.27 2.27 Indoor Unit FDM42PEVLK FDM42PEVLK Power Supply 220V 1Ph 60Hz Heat Exchange Cross Fin Coil Type Centrifugal fan Drive Direct Driver...
  • Page 16 SiK401005 Continued Indoor unit FDM48PEVLK FDM48PEVLK Model Outdoor unit R48PETLK R48PEYLK 13.2 13.2 Nominal Cooling Capacity Btu/h 45000 45000 Power Input Cooling 5.76 5.76 EER/COP 2.29 2.29 Indoor Unit FDM48PEVLK FDM48PEVLK Power Supply 220V 1Ph 60Hz Heat Exchange Cross Fin Coil Type Centrifugal fan Drive...
  • Page 17 SiK401005 Continued Indoor unit FDM24PEVLK FDM30PEVLK FDM36PEVLK Model Outdoor unit RY24PEVLK RY30PEVLK RY36PEVLK Cooling Btu/h 22500 28000 32000 Nominal Capacity 10.5 Heating Btu/h 25600 31700 35800 Cooling 2.70 3.45 4.00 Power Input Heating 2.60 3.40 3.50 EER/COP 2.44/2.88 2.38/2.74 2.35/3.00 Indoor Unit FDM24PEVLK FDM30PEVLK...
  • Page 18 SiK401005 Continued Indoor unit FDM42PEVLK FDM42PEVLK Model Outdoor unit RY42PETLK RY42PEYLK Cooling Btu/h 41000 41000 Nominal Capacity Heating Btu/h 48000 48000 Cooling 5.17 5.17 Power Input Heating 5.27 5.27 EER/COP 2.32/2.66 2.32/2.66 Indoor Unit FDM42PEVLK FDM42PEVLK Power Supply 220V 1Ph 60Hz Heat Exchange Cross Fin Coil Type...
  • Page 19 SiK401005 Continued Indoor unit FDM48PEVLK FDM48PEVLK Model Outdoor unit RY48PETLK RY48PEYLK 13.2 13.2 Cooling Btu/h 45000 45000 Nominal Capacity 16.0 16.0 Heating Btu/h 54600 54600 Cooling 5.79 5.79 Power Input Heating 5.90 5.90 EER/COP 2.28/2.71 2.28/2.71 Indoor Unit FDM48PEVLK FDM48PEVLK Power Supply 220V 1Ph 60Hz Heat Exchange...
  • Page 20 SiK401005 Notes: Nominal capacities are based on the following conditions. Indoor Outdoor Cooling 27°C 35°C 19°C 24°C Heating 20°C 7°C --°C 6°C Piping Length The air volume is measured at the relevant standard external static pressure. Noise is tested in the Semi shield room, so it should be slightly higher in the actual operation due to environmental change.

  • Page 21: Electrical Data

    Qty. LRA Blower Size (Indoor/Outdoor) Model Supply Fan Motors Motor V, Ph, Hz — Each Each Amperes Amperes Each Each R24PEVLK FDM24PEVLK 220V 1Ph 60Hz 11.2 1.17 25/16 (RY24PEVLK) R30PEVLK FDM30PEVLK 220V 1Ph 60Hz 15.4 1.17 32/25 (RY30PEVLK) R36PEVLK FDM36PEVLK 220V 1Ph 60Hz 15.4...

  • Page 22: Piping Diagram

    SiK401005 5. PIPING DIAGRAM SPECIFICATIONS...

  • Page 23: Part 2 Function Control

    SiK401005 1. OPERATION FLOWCHART ..............16 Cooling/Dry Operation................16 Heating Operation ................... 17 2. MAIN LOGIC ................... 18 Cooling ....................18 Dry Mode....................18 Heating Mode..................19 Fan Mode ....................19 3. WIRED REMOTE CONTROLLER............20 Displaying Part ..................20 Buttons ....................

  • Page 24: Operation Flowchart

    SiK401005 1. OPERATION FLOWCHART 1.1 Cooling/Dry Operation The operation flowchart for cooling/dry operation is as follows. Power on Unit starts and runs at the cooling or drying mode. Indoor fan run If satisfy the starting condition of the compressor or not? Comp.

  • Page 25: Heating Operation

    SiK401005 1.2 Heating Operation The operation flowchart for heating operation is as follows. Power on Power on Uint start and running at Unit starts and runs at the cooling or drying mode. heat mode If satisfy the starting Satisfying start condition of the Comp.condition compressor or not?

  • Page 26: Main Logic

    SiK401005 2. MAIN LOGIC 2.1 Cooling Control object Compressor control wire 4-way valve wire(orange) 4-way valve wire(blue) (V set) Indoor fan Time >180S ≥T When T , the unit will start in cooling mode; In this case, the compressor starts ambient and indoor fan runs at set speed.

  • Page 27: Heating Mode

    SiK401005 2.3 Heating Mode (blue) >180s ≤T When T -1°C, the unit will start in heating mode; In this case, compressor ambient starts and indoor fan runs at set speed. After 20s, the 4-way valve for heating start running. ≥T When T +1°C, the compressor will stop operation.

  • Page 28: Wired Remote Controller

    SiK401005 3. WIRED REMOTE CONTROLLER 3.1 Displaying Part Fig.3.1.1 Outline of wired controller 3.1.1 LCD Display of Wired Controller Fig.3.1.2 LCD display FUNCTION CONTROL...

  • Page 29: Instruction To Lcd Display

    SiK401005 3.1.2 Instruction to LCD Display Description Instruction to Displaying Contents Swing * Swing function Air * Air exchange function Sleep Sleeping state Running mode Each kind of running mode of indoor unit (auto mode) Cooling Cooling mode Dry mode Fan mode Heating Heating mode...

  • Page 30: Buttons

    SiK401005 3.2 Buttons 3.2.1 Silk Screen of Buttons Fig. 3.2.1 Silk screen of buttons 3.2.2 Instruction to Function of Buttons Description Function of Button (1) Function selection and canceling; Enter/cancel (2) Press it for 5s to enquiry the outdoor ambient temperature. * ▲...
  • Page 31 SiK401005 Setting Ambient Under off-state of the unit, press Function and Timer buttons 5 Function Temperature Sensor and continuously for 5s to go to debugging menu. Press Mode button to adjust the setting items and ▲ or ▼ button to set the actual three Grades of Speed 7 Timer for Indoor Fan...

  • Page 32: Installation Of Wired Controller And Project Debugging

    SiK401005 3.3 Installation of Wired Controller and Project Debugging 3.3.1 Installation of Wired Controller Fig.3.3.1: Sketch for Installation of Wired Controller Description Socket’s base box Soleplate of Screw Front panel of Screw installed in the wall controller M4X25 controller ST2.2X6.5 Fig.3.3.1: Sketch for Installation of Wired Controller.
  • Page 33 SiK401005 3.3.2 Project Debugging Enquiry of wired controller’s address: Press Function and Mode buttons at the same time for 5s under off-state of the unit, and then LCD displays wired controller’s address numbers. Setting of wired controller’s address: Press Function and Mode buttons at the same time for 5s.In this case, LCD displays address number.

  • Page 34: Instruction To Operation

    SiK401005 3.4 Instruction to Operation 3.4.1 On/Off Press On/Off button to turn on the unit. Repress this button to turn off the unit. Note: The state shown in Fig.3.4.1 indicates off-state of the unit after energization. The state shown in Fig.3.4.2 indicates on-state of the unit after energization. Fig.3.4.1 Off state of the unit Fig.3.4.2 On state of the unit 3.4.2 Mode Setting...

  • Page 35: Temperature Setting

    SiK401005 3.4.3 Temperature Setting Press ▲ or ▼ button to increase or decrease of setting temperature under on-state of the unit. If press either of them continuously, temperature will be increased or decreased by 1°C every 0.5s. In Cooling, Dry, Fan and Heating mode, temperature setting range is 16°C~30°C. In Auto mode, the setting temperature is un-adjustable.

  • Page 36: Swing Control Function

    SiK401005 3.4.5 Swing Control Function * Under on-state of unit, press Function button till the unit enters swing control function and then press “Enter/Cancel“ button to turn on “swing” control function. During swing function, press Function button till the unit enters swing control function and then press Enter/Cancel button to cancel swing control function.
  • Page 37 SiK401005 timer setting is canceled. Timer off setting under on-state of the unit is shown as Fig.3.4.6 Fig. 3.4.6 Timer setting under on-state of the unit Timer range: 0.5-24hr. Every press of▲ or ▼ button will make setting time increased or decreased by 0.5hr.

  • Page 38: Air Exchange Setting

    SiK401005 3.4.7 Air Exchange Setting * Turn on air Exchange function: Under on-state of the unit, press Function button to go to the this function setting (Air mark blinks). IR 1 displayed at the ambient temperature-displayed location (888) is defaulted (the last type of AIR will be displayed after adjustment).Press ▲ or ▼ button to adjust air type.

  • Page 39: Sleep Setting

    SiK401005 3.4.8 Sleep Setting Sleep on: Press Function button under on-state of the unit into sleep function and then press Enter/Cancel button to turn on sleeping function. Sleep off: During sleep on-state, press Function button to go to the sleep function and then press Enter/Cancel button to turn off this function.

  • Page 40: Turbo Function Setting

    SiK401005 3.4.9 Turbo Function Setting Turbo function: The unit at high fun speed can realize quick cooling or heating so that room temperature can quickly approach the setting temperature. In cooling or heating mode, press Function button till the unit enters Turbo function and then press Enter/Cancel button to turn on turbo function.

  • Page 41: Save Function Setting

    SiK401005 3.4.10 Save Function Setting Energy Saving Function: Energy saving can make the air conditioner runs in smaller temperature range by setting lower limited value of setting temperature in cooing or dry mode and upper limited value in heating mode. Energy Saving Setting for Cooling mode Under on-state and in cooling or dry mode of the unit, press Function button into energy saving function, with SAVE blinking.
  • Page 42 SiK401005 data won’t be memorized. 3. After power failure and then recovery, save function setting will be memorized. 4. The lower limited value in cooling mode is 16°C and the upper limited value in heating mode is 30°C. 5. After save setting, if the setting temperature is out of the range in the mode, the limited value will prevail.

  • Page 43: Blow Function Setting

    SiK401005 3.4.12 Blow Function Setting BLOW function: After the unit is turned off, water in evaporator of indoor unit will be automatically evaporated to avoid mildew. In cooling and dry mode, press Function button till the unit enters BLOW function, with BLOW blinking, and then press Enter/Cancel button to turn on this function.

  • Page 44: Quiet Function Setting

    SiK401005 3.4.13 Quiet Function Setting Quiet function consists of two kinds: QUITE and AUTO QUITE. Press Function button till the unit enters quiet function setting state, Quiet or Auto Quiet mark blinks. In this case, press ▲ or ▼ button to switch between Quiet and Auto Quiet and then press Enter/Cancel button to turn on this function.

  • Page 45: Field Functions

    SiK401005 3.4.14 Field Functions Under off-state of the unit, press Function and Timer buttons continuously for 5s to go to debugging menu. Press Mode button to adjust the setting items and ▲ or ▼ button to set the actual value. 3.4.14.1 Ambient Temperature Sensor Setting In field setting mode, press Mode button to adjust the temperature displayed location...

  • Page 46: Other Functions

    SiK401005 3.4.15 Other Functions 3.4.15.1 Lock Function Upon startup of the unit without malfunction or under off-state of the unit, press ▲ and ▼ buttons at the same time for 5s till the wired controller enters lock state. In this case, LCD displays .

  • Page 47: Error Display

    SiK401005 3.5 Error Display If there is malfunction during running of the system, LCD will display error code at temperature–displayed location. Once there is more than one malfunction, error codes will be displayed circularly. If there are multiple circuit systems, the system number of failed system will be displayed before the colon (not for single system).

  • Page 48: Setting Of Indoor Room Sensor

    SiK401005 3.6 Setting of Indoor Room Sensor 3.6.1 Setting of Double Indoor Room Sensors This series of ducted air-conditioning unit has two indoor room sensors. One is located at the air intake of the indoor unit and the other one is located inside the wired controller. User can select one from the two indoor room sensors on the basis of the engineering requirement.

  • Page 49: Fresh Air Control

    SiK401005 3.6.2 Fresh Air Control * 11-level control can be realized for the amount of fresh air taken in. The function not only facilitates the health of users, but also controls the electricity consumption loss due to taking fresh air in. This kind of control can be carried out through the wired controller. The function can be set and go into effect at any time, and features very simple operation.
  • Page 50 SiK401005 3.6.3 Position and Method of Installing Wired Remote Controller 1. One end of the control wire of the wired controller is connected with main board inside the electrical box of indoor unit and should be tightened by wire clamps, while the other should be connected with the wired controller.

  • Page 51: Defrosting Controll

    SiK401005 4. DEFROSTING CONTROL (Heat pump) The defrosting mode: After the compressor consecutively runs for “t” minutes, it will start defrosting if the sensor detects the temperature ≤“T1”°C for consecutive 1 minute. It will stop defrosting when defrosting has run for 10 minutes or the sensor detects the temperature over “T2”°C. Defrosting control: There are 8 defrosting modes corresponding to different DIP ways.
  • Page 52 SiK401005 DIP switch (SA1): Warning: The default setting of DIP switch included in the WZ14301 main board of outdoor unit: DIP switch (SA1): Position 1,2 to “ON”; Position 3 to number port Note 1: Figure A shows OFF position of DIP switch. Figure B shows ON position of DIP switch. Figure A Figure B “1”...
  • Page 53 SiK401005 Note 2: Main board LED LED 2 LED 1 The description of main board LED indication Mainboard LED display instruction LED 1 LED 2 Normal Operation Blinks every 0.5s Blinks every 0.5s Defrosting High pressure protection Blinks every 0.5s Low pressure protection Blinks every 0.5s Outdoor ambient Temp.

  • Page 54: Mainboard Code Setting

    SiK401005 5. MAINBOARD CODE SETTING Please find the corresponding mainboard according to the unit type and then check whether the mainboard code is right according to the mainboard. The relation between mainboard type and unit type: mainboard: Z4G25C Z4G25B Code location and meaning: Please find the corresponding mainboard according to the complete unit type and then check whether the mainboard code conforms to the figures below according to the mainboard.

  • Page 55: Installation

    SiK401005 Part 3 INSTALLATION 1. INDOOR UNIT INSTALLATION ...............48 Installation of Duct Type ................48 2. OUTDOOR UNIT INSTALLATION ............57 Before Installation..................57 Installation Site ..................57 Cautions for Installation................58 Dimension Data..................58 Installation Clearance Data ..............59 Installation of Wired Controller ..............60 3. REFRIGERATION PIPING WORK ............61 Refrigeration Piping Work Procedures ............61 Caution in Connecting Pipes ..............67 Specification of Connection Pipe.............68...

  • Page 56: Indoor Unit Installation

    SiK401005 1. INDOOR UNIT INSTALLATION 1.1 Installation of Duct Type 1.1.1 Before Installation After receiving the machine, check if there is any damage during transportation. If there is damage on the surface or inside, inform the carrier or equipment supplier in written form immediately.
  • Page 57 SiK401005 Insert a M10 expansion bolt into the hole. Drive a nail into the bolt. Refer to the profile dimensions drawing of the indoor unit for the distance between the holes. Refer to Fig.1.1.1 shows for the installation of the expansion bolt. Fig.1.1.1 Fig.1.1.2 Screw...
  • Page 58 SiK401005 7) Horizontal Survey of the Indoor Unit After installation of the indoor unit is finished, horizontal survey of the complete unit must be executed to confirm the horizontal placement of the unit, which is shown as below: Level Instrument Air Intake Air Supply Condensate Drainpipe...
  • Page 59 SiK401005 Item Model FDM24PEVLK 1101 515 820 1159 1270 530 1002 160 9.52 15.9 20×1.2 FDM30PEVLK 1101 515 820 1159 1270 530 1002 160 9.52 15.9 20×1.2 FDM36PEVLK 1011 748 820 1115 1226 775 12.7 19.05 20×1.2 FDM42PEVLK 1011 748 820 1115 1226 775 12.7 19.05...

  • Page 60: Installation Clearance Data

    SiK401005 1.1.5 Installation Clearance Data Nut with spring pad Nut with washer Indoor Unit Fig.1.1.8 1.1.6 Drain Piping Work 1) Installation of Drainage Pipeline A drainage outlet is located at both the left and right sides of the indoor unit. After selecting one drainage outlet, the other outlet shall be blocked by rubber plug.

  • Page 61: Pipe Cover

    SiK401005 2) Testing of Drainage System After the electrical installation is completed, carry out the testing of the drainage system. During the test, check if the water correctly flows through the pipelines. Carefully observe the joints to ensure that there is no leakage. If the unit is to be installed in a new house, carry out testing before decorating the ceiling.

  • Page 62: Air Intake

    SiK401005 1) Installation of the Air Supply Duct Installation of Rectangular Air Duct as shown in Fig.1.1.11 Air Intake Air Intake Air Supply Fig.1.1.11 Name Name Hanger Air Inlet Air Intake Duct Main Air Supply Pipe Canvas Air Duct Air Outlet Air Inlet Installation of Round Air Duct as shown in Fig.1.1.12 Fig.1.1.12...
  • Page 63 SiK401005 Caution: The air supply pipe, the air intake pipe and the fresh air pipe must be covered with a layer of thermal insulation, so as to avoid thermal leakage and condensation. Firstly apply liquid nail on the pipes, then attach the thermal insulation cotton with a layer of tinfoil.
  • Page 64 SiK401005 2) Installation of Round Air Outlet Install sketch for round outlet pipe Take out both of the fixing bolts at left Unpack package and right sides, and then take out the parts from the unit one by one Round outlet Enclosure pipe parts Outlet pipe parts...

  • Page 65: Outdoor Unit Installation

    SiK401005 2. OUTDOOR UNIT INSTALLATION 2.1 Before Installation After receiving the machine, check if there is any damage during transportation. If there is damage on the surface or inside, inform the carrier or equipment supplier in written form immediately. After receiving the machine, check the unit and its accessories according to the packing list.

  • Page 66: Cautions For Installation

    Installation dimensions shall comply with the instruction manual and the outdoor unit shall be fixed. Installation of the unit shall be executed by professionals. 2.4 Dimension Data Fig.2.4.1 Unit: mm Model R30PEVLK R42PETLK R48PETLK R24PEVLK R36PEVLK R42PEYLK R48PEYLK RY24PEVLK RY30PEVLK RY42PETLK RY48PETLK RY36PEVLK RY42PEYLK...

  • Page 67: Installation Clearance Data

    SiK401005 2.5 Installation Clearance Data Fig.2.5.1 INSTALLATION...

  • Page 68: Installation Of Wired Controller

    SiK401005 2.6 Installation of Wired Controller 1) First select an installation position. According to the size of the communication line of the wired controller, leave a recess or a embedded wire hole to bury the communication line. 2) If the communication line between the wire controller (85×85×16) and the indoor unit is surface-mounted, use 1# PVC pipe and make matching recess in the wall (Refer to Fig.2.6.1);...

  • Page 69: Refrigeration Piping Work

    SiK401005 3. REFRIGERATION PIPING WORK 3.1 Refrigeration Piping Work Procedures 1) Installation Sketch of Throttle Valve Structure of throttle valve Fig.3.1.1 Names Names 1/2 Copper seal cap Valve base A Na son Double joint Filter (60 mesh) Seal ring Joint Seal cap During connection, remove the plastic seal cap at one end of the throttle valve ( Part 8 in the above figure 3.1.1)
  • Page 70 SiK401005 Confirm the specification of cooling/heating throttle orifice according to model of the unit (marked on the unit). Model of Unit Cooling throttle orifice Heating throttle orifice FDM24PEVLK FDYM24PEVLK FDM30PEVLK FDYM30PEVLK FDM36PEVLK FDYM36PEVLK FDM42PEVLK FDYM42PEVLK Installation of cooling throttle orifice Put the cooling throttle orifice confirmed according to above table onto the valve base of liquid pipe joint.
  • Page 71 SiK401005 Notice! In order to ensure normal operation of the unit, never inversely install the cooling throttle orifice and heating throttle orifice. Install the throttle valve and throttle orifice according to the above sequence. Meanwhile, the seal rings shall be installed properly at joints to prevent leakage. Model Torque moment FDM24PEVLK...
  • Page 72 SiK401005 Fig.3.1.7 Form 3.1.6 the tightening torque needed for tightening nut Pipe diameter Tightening Torque 15-30 (N·m) 35-40 (N·m) 60-65 (N·m) 45-50 (N·m) 70-75 (N·m) The bend of pipe shall not be too small; otherwise the pipe might be broken. Please use pipe bender to bend the pipe.
  • Page 73 SiK401005 3) Vacuum and Leakage Detection Remove the cap from liquid valve and gas valve. Align with the pipe center and tighten the jointing nuts adequately with your hand. Tighten the nuts with wrench. Remove the 1-way cap from the gas valve. Use the hexagonal socket spanner to rotate the element of liquid valve for 1/4 turns and use the screwdriver to prop up the element of gas valve to discharge the gas.
  • Page 74 SiK401005 Start the vacuum pump, when the indicator turns to 1 bar, and then close the low pressure handle and stop the vacuum pump. After that, keep this state for 15 minutes, ensure the pressure of the vacuum watch remains. Take out the valve cover of the gas valve together with the liquid valve.

  • Page 75: Caution In Connecting Pipes

    SiK401005 3.2 Caution in Connecting Pipes The layout of connection pipes shall be in reference to the following principles according to site conditions: Shorten the connection pipe to minimum, preferably within 5m. Reduce the height difference between indoor and outdoor units as possible as it might be.

  • Page 76: Specification Of Connection Pipe

    Difference Additional Max. Pipe Length between Indoor Refrigerant to be Unit and Outdoor Filled (For Extra Gas Pipe Liquid Pipe Unit (m) Length of Pipe) Model FDM24PEVLK R24PEVLK/ RY24PEVLK 60g/m FDM30PEVLK R30PEVLK/ RY30PEVLK FDM36PEVLK R36PEVLK/ RY36PEVLK FDM42PEVLK R42PETLK/ R42PETLK 120g/m...

  • Page 77: Electric Wiring Work

    SiK401005 4. ELECTRIC WIRING WORK 4.1 Wiring Principle 4.1.1 Electric Wiring The power supply must be exclusive for air conditioners. The power cable should be reliable and fixed, in order to avoid the wiring terminal be suffered from force. The wire diameter of power cable should be large enough, if power cable and connection wire be damaged;...

  • Page 78: Electric Wiring Design

    SiK401005 4.2 Electric Wiring Design 4.2.1 Duct type R24PEVLK+FDM24PEVLK RY24PEVLK+FDYM24PEVLK POWER 220V~60Hz POWER 220V~60Hz Power Cord 3×4.0mm (H07RN-F) Power Cord 3×4.0mm (H07RN-F) Power Cord 3×2.5mm (H07RN-F) Power Cord 3×2.5mm (H07RN-F) Communication Cords 2×1.0mm (H07RN-F) Communication Cords 4×1.0mm (H07RN-F) Capability of Breaker: 25A...
  • Page 79 SiK401005 R30PEVLK+ FDM30PEVLK RY30PEVLK+ FDYM30PEVLK POWER 220V~60Hz POWER 220V~60Hz Power Cord 3×6.0mm (H07RN-F) Power Cord 3×6.0mm (H07RN-F) Power Cord 3×4.0mm (H07RN-F) Power Cord 3×4.0mm (H07RN-F) Communication Cords 2×1.0mm (H07RN-F) Communication Cords 4×1.0mm (H07RN-F) Capability of Breaker: 32A Capability of Breaker: 32A R36PEVLK + FDM36PEVLK RY36PEVLK + FDYM36PEVLK POWER 220V~60Hz...
  • Page 80 SiK401005 R42PETLK + FDM42PEVLK RY42PETLK + FDYM42PEVLK R48PETLK + FDM48PEVLK RY48PETLK + FDYM48PEVLK POWER 220V 3~60Hz POWER 220V 3~60Hz Power Cord 4×6.0mm (H07RN-F) Power Cord 4×6.0mm (H07RN-F) Power Cord 3×1.0mm (H07RN-F) Power Cord 3×1.0mm (H07RN-F) Communication Cords 2×1.0mm (H07RN-F) Communication Cords 4×1.0mm (H07RN-F) Capability of Breaker: 32A Capability of Breaker: 32A...
  • Page 81 SiK401005 R42PEYLK + FDM42PEVLK RY42PEYLK + FDYM42PEVLK R48PEYLK + FDM48PEVLK RY48PEYLK + FDYM48PEVLK POWER 380V 3N~60Hz POWER 380V 3N~60Hz Power Cord 5×4.0mm (H07RN-F) Power Cord 5×4.0mm (H07RN-F) Power Cord 3×1.0mm (H07RN-F) Power Cord 3×1.0mm (H07RN-F) Communication Cords 2×1.0mm (H07RN-F) Communication Cords 4×1.0mm (H07RN-F) Capability of Breaker: 25A Capability of Breaker: 25A...

  • Page 82: Maintenance

    SiK401005 Part 4 MAINTENANCE 1. REMOTE CONTROLLER DISPLAY MALFUNCTION AND DESCRIPTION ..................75 2. FLOW CHART OF TROUBLESHOOTING ..........77 WIRING DIADRAM..................81 Wiring Diagram-Outdoor Units ..............81 Wiring Diagram-Indoor units..............91 4. DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS ..93 Outdoor Unit ....................93 Indoor Unit.....................104 MAINTENANCE...

  • Page 83: Remote Controller Display Malfunction And Description

    SiK401005 1. REMOTE CONTROLLER DISPLAY MALFUNCTION AND DESCRIPTION Malfunction Origin of Trouble Trouble Case Measure Code Signal When defrosting operation and dehumidifying operation have been performed a period of time, in the case of detecting the evaporator temperature less Evaporator than -2°C by the evaporator temperature Indoor anti freezing temperature...
  • Page 84 SiK401005 Malfunction Origin of Trouble Trouble Case Measure Code Signal Malfunction is detected when there is a short circuit or an open circuit in the indoor room temperature thermistor for more than 5 sec. The system will be shut down in cooling Malfunction of Indoor Indoor room operation and dehumidifying operation.

  • Page 85: Flow Chart Of Troubleshooting

    SiK401005 2. FLOW CHART OF TROUBLESHOOTING Service engineers shall collect the malfunction information as much as possible and then research it thoroughly. Besides, they should list those electrical parts which may cause malfunction and determine where the problem really is and finally sort out the perfect solution.
  • Page 86 SiK401005 Malfunction display: E6 Communications Failure Malfunction of communication Check if indoor unit’s Confirm the locations of plug communication line is properly and socket connected Check if communication Replace the communication line line is closed circuit Check if the connection Confirm the locations of plug line between indoor and indoor units and socket...
  • Page 87 SiK401005 Malfunction display: E9 Malfunction of drain water level Malfunction of drain water level Check if the Replace the main board of Check if water overflows voltage of liquid level switch the indoor unit end is ok Check the liquid level switch Replace the main board of the indoor unit...
  • Page 88 SiK401005 Malfunction display: F1 Malfunction of Evaporator Temp. Thermistor Failure of Condenser Temp. thermistor Check if the plug Check the directions of of the temperature thermistor is correctly connected the plug and socket with socket on the mainboard Remove the sensor Replace temperature to check if the resistance value is ok sensor...

  • Page 89: Wiring Diadram

    SiK401005 3. WIRING DIADRAM 3.1 Wiring Diagram-Outdoor Units 1. R24PEVLK MAINTENANCE...
  • Page 90 SiK401005 2. RY24PEVLK MAINTENANCE...
  • Page 91 SiK401005 3. R30PEVLK MAINTENANCE...
  • Page 92 SiK401005 4. RY30PEVLK MAINTENANCE...
  • Page 93 SiK401005 5. R36PEVLK MAINTENANCE...
  • Page 94 SiK401005 6. RY36PEVLK MAINTENANCE...
  • Page 95 SiK401005 7. R42PETLK, R48PETLK MAINTENANCE...
  • Page 96 SiK401005 8. RY42PETLK, RY48PETLK MAINTENANCE...
  • Page 97 SiK401005 9. R42PEYLK, R48PEYLK MAINTENANCE...
  • Page 98 SiK401005 10. RY42PEYLK, RY48PEYLK MAINTENANCE...

  • Page 99: Wiring Diagram-Indoor Units

    SiK401005 3.2 Wiring Diagram-Indoor units Model:FDM24PEVLK; FDM30PEVLK; MAINTENANCE...
  • Page 100 SiK401005 Model:FDM36PEVLK; FDM42PEVLK; FDM48PEVLK; MAINTENANCE...

  • Page 101: Disassembly And Assembly Procedure Of Main Parts

    SiK401005 4. DISASSEMBLY AND ASSEMBLY PROCEDURE OF MAIN PARTS 4.1 Outdoor Unit Disassembly and Assembly of Main Parts of Outdoor Unit Disassembly and Assembly of external casing Remark :Make sure that the power supply is cut off before disassemble of the external casing. Step Illustration Handling Instruction...
  • Page 102 SiK401005 Put new right (back) panel into right position. Screw down the surrounding retaining screws with screwdriver. 6. Installation of new right (back) panel Put new panel (external casing) into right position on the unit; Screw down the surrounding retaining screws with screwdriver.
  • Page 103 SiK401005 Disassembly and Assembly of Compressor Remark : Make sure there isn’t any refrigerant in pipe system and the power supply is cut off before removal of the compressor.. Step Illustration Handling Instruction Unscrew the retaining screw of power cord with screwdriver.
  • Page 104 SiK401005 Heat the suction and discharge pipe with gas welding before removing compressor. Weld suction and Provide nitrogen protection during gas discharge welding and the nitrogen pressure should be pipe of 6. Connection of 0.5±0.1kgf/cm (relative pressure) compressor suction and discharge Please pay attention to heating in case that pipe with pipeline surrounding materials should be burnt by...
  • Page 105 SiK401005 Disassembly and Assembly of 4-way valve Remark : Make sure that there isn’t any refrigerant in pipe system and the power supply is cut off before removal of 4-way valve. Step Illustration Handling Instruction Cut off power supply and reclaim refrigerants properly.
  • Page 106 SiK401005 Position accurately the new 4-way valve. Connect new 4-way valve with pipe line. Wrap the valve with wet cloth when welding 4-way valve in case sliding block inside the valve would be burnt and water would flow into the pipe line. 5.
  • Page 107 SiK401005 Disassembly and Assembly of capillary Remark : Make sure that there isn’t any refrigerant in pipe system and the power supply is cut off before removal of the capillary Step Illustration Handling Instruction Weld two welding points connecting capillary with other pipe lines.
  • Page 108 SiK401005 Disassembly and Assembly of Vapor Liquid Separator Remark : Make sure that there isn’t any refrigerant in pipe system and the power supply is cut off before removal of the vapor liquid separator. Step Illustration Handling Instruction Disassemble the retaining screws on the pothooks of the reservoir with screwdriver.
  • Page 109 SiK401005 Hold the fans without movement. Disassemble retaining nuts for the fans with wrench. Take down and remove fans from motor. 2. Disassembly of axial flow fan Open the cover plate of electric box Loose the connecting plug for motor wires and pull out the wires through the hole Disassemble retaining screws for...
  • Page 110 SiK401005 electrical parts box Disassembly and Assembly of Remark : Make sure that power supply of the unit is cut down before removal of electrical parts box or electrical parts box modules. Step Illustration Handling Instruction Cut off power supply Disassemble retaining screws between cover and electric box Remove the cover.
  • Page 111 SiK401005 Re-connect the connection wires of components with right position according to the order of disassembly. 6. Connection of power supply wires of each component Position accurately the new cover of electrical box. Re-fasten and screw down retaining screws with screwdriver 7.

  • Page 112: Indoor Unit

    SiK401005 4.2 Indoor Unit 4.2.1 Duct Type Disassembly of filter screen for return air Remark: Make sure that the power supply is cut off before disassembling and protect all the parts during disassembly. Do not put filter screen near the high temperature heat source Step Illustration Handling Instruction...
  • Page 113 SiK401005 Disassembly of water-containing plate Remark: Make sure that the power supply is cut off before disassembling and protect all the parts during disassembly. Step Illustration Handling Instruction Disassemble the fastening screws on the cover plate and remove the cover plate. (As is shown in the graph, six circles represent fastening screws under 1.
  • Page 114 SiK401005 Disassembly of evaporator Remark: Make sure that the power supply is cut off and protect the copper tube and aluminum fin. If the time for disassembly shall be long, put the copper tube under pressurized condition. Step Illustration Handling Instruction Disassemble the fastening screw connecting left and right side panels on the...
  • Page 115 SiK401005 Disassembly of external casing cabinet Remark: Make sure the power supply is cut off before disassembling and protect all the parts during disassembly. Step Illustration Handling Instruction Disassemble the fastening screws between right and left panels and upper cover plates.
  • Page 116 Daikin Industries, Ltd.’s products are manufactured for export to numerous countries throughout the Warning world. Daikin Industries, Ltd. does not have control over which products are exported to and used in a particular country. Prior to purchase, please therefore confirm with your local authorised importer, distributor and/or retailer whether this product conforms to the applicable standards, and is suitable for use, in the region where the product will be used.

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