Summary of Contents for d2itsu FCSD 1V EC FLEX Series
- Page 1 INSTALLATION AND MAINTENANCE MANUAL CASSETTE 1 WAY FCSD 1V - EC MOTOR Serie FCSD 1V EC FLEX Edition Models FCSD 1V-01-EC FCSD 1V-02-EC...
- Page 2 Page 1 of 61 INVESTING IN QUALITY, RELIABILITY & PERFORMANCE ISO 9001 QUALITY World Leading Design and Technology Every product is manufactured to meet Equipped with the latest air-conditioning test rooms the stringent requirements of the and manufacturing technology, we produce over internationally recognized ISO 9001 50,000 fan coil units each year, all conforming to the standard for quality assurance in design,...
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Page 3: Table Of Contents
Page 2 of 61 Table of Contents Technical Data ..................................5 General Description ................................ 5 General Specifications ..............................6 Coil Data ..................................7 Dimension Drawings ..............................7 Sound power data ................................8 Valve Information (Optional parts) ..........................10 Installation ..................................12 Safety Precautions ................................ - Page 4 Page 3 of 61 Modulating Valve Control Under Energy Saving Mode ....................37 Louver ..................................38 Buzzer ..................................38 Auto Restart ................................38 On/Off Switch On LED Display ............................ 38 Drain Pump ................................38 Float Switch ................................39 Electric Heater Safety Switch ............................39 Low Temperature Protection of Indoor Coil in Winter ....................
- Page 5 Page 4 of 61 Model Code Nomenclature FCSD 1V FLEXI EC Motor Configuration Flexible function onboard PCB with drain FLEXI pump, louver and zone control functionality. Unit Sizes. See General Specification 01-02 section A for cooling and heating capacities FCSD 1V Hydronic Cassette Super Slim Series SK2019 FCSD 1V-01-EC-001_1...
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Page 6: Technical Data
Page 5 of 61 Technical Data General Description The Super Slim Hydronic Cassette makes each served area an independent controlled temperature zone to suit diverse requirements. Construction Casing is constructed of durable flame resistant acrylonitrile-butadiene-styrene (ABS) plastic. RAL9010 fascia is constructed of high-impact polystyrene. -
Page 7: General Specifications
Page 6 of 61 General Specifications Product range: FCSD 1V-EC Super Slim Hydronic Cassette with EC Motor FCSD 1V-[Size]-EC Configuration 2 pipe Number Of Fan Blowers Single 230 / 1 / 50 Unit Configuration Power Supply (V/Ph/Hz) 220 / 1 / 60 TOTAL: Complete function onboard PCB Operation Control FLEXI: Flexible function onboard PCB... -
Page 8: Coil Data
Page 7 of 61 Coil Data Tube Fin Height No. of No. of Model Fin Length (mm) Fins / inch Diameter (mm) rows circuits (mm) FCSD 1V-01/02 18.5 Dimension Drawings (All dimensions shown in mm) SK2019 FCSD 1V-01-EC-001_1... -
Page 9: Sound Power Data
Page 8 of 61 Sound power data Model FCSD 1V-01-EC Speed 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM (1200) (1000) (600) Sound Power dB(A) 46.9 42.0 32.0 32.0 34.7 36.2 39.2 42.0 44.6 46.9 49.2 51.4 20.0 Hz 13.6 17.6 12.1... - Page 10 Page 9 of 61 Model FCSD 1V-02-EC 1000 1100 1200 1300 1350 1400 Speed (1350) (1200) (700) Sound Power 50.0 46.9 34.7 32.0 34.7 36.2 39.2 42.0 44.6 46.9 49.2 50.0 51.4 dB(A) 20.0 Hz 11.6 13.6 13.3 12.1 13.3 18.1 17.6 14.7...
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Page 11: Valve Information (Optional Parts)
Page 10 of 61 Valve Information (Optional parts) 2-Way Valve Body Valve Body Dimensions (mm) Valve Code (valve body + ON/ OFF thermoelectric actuator) SGS14HFCA-23020101 19.5 (G1/2”) 3-Way Valve Body Valve Body Dimensions (mm) Valve Code (valve body + ON/ OFF thermoelectric actuator) SGS14HFCA-23020102 (G1/2”) - Page 12 Page 11 of 61 Actuator Model DR-16-230B DR-16-24B DR-15B-24B Normal closed Normal closed Normal closed Voltage 230Vac 24Vac 24Vac Working force 90~125N 90~125N 90~125N Time 4.5min 4.5min 4.5min Power Full stroke 3.5mm 3.5mm 5.0mm Imax 150mA 250mA 250mA Wires 2-wire 2-wire 3-wire (red, blue, black) SK2019 FCSD 1V-01-EC-001_1...
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Page 13: Installation
Page 12 of 61 Installation Safety Precautions • When installing, performing maintenance or servicing Daitsu fan coil units observe the precautions stated in this manual as well as those stated on the labels attached to the unit. • Ensure all local and national safety codes, laws, regulations, as well as general electrical and mechanical safety guidelines are followed for installation, maintenance and service. -
Page 14: Standard Configurations And Accessories
Page 13 of 61 Standard Configurations and Accessories First check the contents of the package. There are two types of control PCBs: ~EC-TOTAL version: TOTAL configuration – Complete function integrated controller, compatible with IR handset controller, wired wall-pad, serial networking for master-slave and MODBUS applications. ... -
Page 15: Before Installation
Page 14 of 61 Before Installation The installation site must be established by the system designer or other qualified professional, taking account of the technical requisites, current standards and regulations. Super slim cassette fan coil unit must be installed by qualified personnel only. ... -
Page 16: Installation Location
Page 15 of 61 Installation Location Do not install the unit in rooms where flammable gas or alkaline acid substances are present. Aluminum/copper coils and/or internal plastic components can be damaged irreparably. Do not install in workshops or kitchens; drawn in oil vapors might deposit on the coils and alter their performance or damage the internal plastic parts of the unit. -
Page 17: Ceiling Clearance
Page 16 of 61 Ceiling Clearance Verify inlet and outlet grilles are not obstructed to ensure proper air flow. Confirm location allows condensate to be properly drained. Confirm height between the bottom of upper deck and top of ceiling is sufficient for installation. (Figure B.6) ... -
Page 18: Water Connections And Valve Configurations
Page 17 of 61 Water Connections and Valve Configurations The Super Slim Cassette unit is provided with 1/2” water piping connections with gaskets. • ~TOTAL: Units are compatible with: 1. 230VAC 2-way or 3-way on/off valves (thermoelectric or electric motor-driven actuation), with OPEN/CLOSE state actuation. -
Page 19: Suspension Bolts Layout And Ceiling Opening
Page 18 of 61 Suspension Bolts Layout and Ceiling Opening Using the installation template, remove and/or modify the ceiling panels and install suspension bolts as in the images below. 1102 x 446: Dimensions for opening 1010.4 x 280.4: Suspension Bolts ... - Page 20 Page 19 of 61 Installation Procedures: Lift unit (without front panel) with care by four corners only. Do not lift unit by the condensate drain discharge pipe or piping connections. Incline and insert the unit into the ceiling. Insert support rods into the bracket slot. Line up the unit to the supporting bars of the ceiling by tightening the nuts and counter nuts of the suspension rods.
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Page 21: Electrical Connection
Page 20 of 61 Electrical Connection It is recommended using screened cable in electrically noisy areas. Do not install fan coil unit in a location where electromagnetic waves may be directly emitted towards infra-red receiver on the unit. ... -
Page 22: Mounting Front Panel Assembly
Page 21 of 61 Mounting Front Panel Assembly Step 1: Remove return grille and filter from front panel, Step 2: Connect LED wiring plugs, then tighten screws to then move the front panel to the unit casing. attach the front panel. Step 3: Insert the filter and return air grille into the unit, then lock the two fasteners on the front panel. -
Page 23: Maintenance
Page 22 of 61 Maintenance Turn off the main power switch before performing any service or maintenance operations. Please see section B.1. “Safety Precautions”. The air filter is made of acrylic fiber and is washable in water. Open the intake grille by releasing the two fasteners to remove filter. -
Page 24: Air Vent And Water Purge
Page 23 of 61 Air Vent and Water Purge Step 1: Remove grille and filter. Step 2: Operate air vent / water purge valve by turning the knobs. knobs Control PCB Replacement Repeat Step 1 at C.3. Step 2: Release 3 to remove Control Box cover. Step 3: Remove screws on PCB and install replacement. -
Page 25: Motor Or Drain Pump Replacement
Page 24 of 61 Motor or Drain Pump Replacement Repeat Step 1 at C.3. Step 2: Release screws shown below to remove front panel. Step 3: Release screws shown below to remove internal drain pan. Step 4: Remove Drain Pump/Motor mounting screws, then replace it. Drain Motor Pump... -
Page 26: Control Specifications: Complete Control Pcb - Ec-Total Type Control
Page 25 of 61 Control Specifications: Complete Control PCB – EC-TOTAL Type Control Abbreviations Ts = Setting temperature AUX1 = Hot water free contact Tr = Room air temperature AUX2 = Chilled water free contact Ti1 = Chilled water coil temperature MTV1 = Chilled water valve Ti2 = Hot water coil temperature MTV2 = Hot water valve... -
Page 27: Wiring Diagrams
Page 26 of 61 Wiring Diagrams EC-TOTAL Type Control PCB IPA19-DL-EC-S1 EC-S1 Unit wiring scheme DIPA-S1 SW1-5: set the unit address SW6: set unit type :master or slave NEXT UNIT Mode Configuration SW7=0;SW8=0; unit operates in cooling/heating SW7=0;SW8=1; unit operates in cooling/heating w/booster FUSE SW7=1;SW8=0 ;... -
Page 28: Master Slave Networking Wiring Diagram
Page 27 of 61 Master Slave Networking Wiring Diagram FLOAT EH2 EH1 PR2 PR1 FLOAT EH2 EH1 PR2 PR1 FLOAT EH2 EH1 PR2 PR1 LED display / IR receiver LED display / IR receiver LED display / IR receiver X-DISI A B A B X-DISI A B A B... -
Page 29: Configuration Settings
Page 28 of 61 Configuration Settings DIPA-S1 DIPB-S2 SW1-SW5 Network address setting SW5/SW6 Fan Qty setting SW5=0 Single fan application SW6=1 SW5=1 Twin fans application Master / Slave setting SW6=1 SW6=1 Master SW6=0 Slave Preheat temperature setting SW4=1 28ºC SW4=0 36ºC SW7/SW8 Operating mode SW7=0 Cooling and heating modes available... -
Page 30: Fan Coil Unit On/Off
Page 29 of 61 Fan Coil Unit ON/OFF There are 3 ways to turn the system on or off: a) By the ON/OFF button on the remote handset or wired wall pad; b) By the programmable timer on the handset or wired wall pad. c) By the manual control button on fan coil unit. -
Page 31: Control Logic For 2-Pipe System
Page 30 of 61 Control Logic For 2-Pipe System With Valve Configuration COOL MODE a) MTV2, AUX1 and electric heater are always off. b) If Tr ≥ Ts + 1ºC (or + 4ºC if economy contact is activated), then cool operation is activated and MTV1 and AUX2 are turned on. - Page 32 Page 31 of 61 Over-heat protection of indoor coil in heat mode a) If Ti1 ≥ 75 ºC, then MTV1, AUX2 and EH are turned off, indoor fan runs at high speed, even in standby mode. b) If Ti1 < 70 ºC, then unit will maintain its original state. If the indoor coil temperature sensor is damaged, the protection mode will be overridden and the pre-heat and post-heat set times will be used instead.
- Page 33 Page 32 of 61 AUTOMODE Auto cool/heat/heat with electric heater as booster Every time the unit is turned on, MTV1 is on, AUX1, AUX2 and fan are off. MTV2 and heater are always off. After 120secs, the subsequent operation mode is decided according to the following programs: a) If the coil temperature sensor (Ti1) ≥...
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Page 34: Without Valve Configuration
Page 33 of 61 Without Valve Configuration COOL MODE a) Electric heater, AUX1, MTV1 and MTV2 are always off. b) If Tr ≥ Ts + 1ºC (or + 4ºC if economy contact is activated), then cool operation is activated and AUX2 is turned on. Indoor fan runs at set speed. - Page 35 Page 34 of 61 Over heat protection of indoor coil in post-heat a) If Ti1 ≥ 75ºC, then AUX1 is turned off, indoor fan remains on and runs at high speed. b) If Ti1 < 70ºC, then AUX1 is turned on, indoor fan remains on and runs at set speed. If the indoor coil temperature sensor is damaged, then the protection mode will be overridden and the unit will work according to the pre-heat and post-heat program.
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Page 36: Control Logic For 4-Pipe System
Page 35 of 61 Control Logic For 4-Pipe System Note: 4-pipe system must always be equipped with 2 valves. COOL MODE a) MTV2, AUX1 and Electrical Heater are always off. b) If Tr ≥ Ts + 1ºC (or + 4ºC if economy contact is activated), then cool operation is activated, MTV1 and AUX2 are turned on. Indoor fan runs at set speed. - Page 37 Page 36 of 61 PRE-HEAT Without Electrical Heater a) If Ti2 < 36ºC [or 28ºC depends on DIP setting], then MTV2 and AUX1 are on, then indoor fan remains off. b) If Ti2 ≥ 38ºC [or 30ºC depends on DIP setting], then MTV2 and AUX1 are on, then indoor fan runs at set speed. If indoor coil temperature sensor is damaged, then pre-heat time is set for 2 minutes and indoor fan runs at set speed.
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Page 38: Sleep Mode
Page 37 of 61 Sleep Mode a) The sleep mode can only be set when the unit is in cool mode or heat mode. b) If the sleep mode is activated when the unit is in cool mode, then the indoor fan will run at low speed and Ts will increase by 2ºC over 2 hours. -
Page 39: Louver
Page 38 of 61 Louver For remote handset. Whenever the indoor fan is running, the louver can swing or stop at the desired position. Louver angle: 0~100 º, opens clockwise with widest angle at 100 º. Swing angle: 35~100 º, opens clockwise to 68º. Below are the 4 fixed positions which can be set from wireless LCD handset. Position Angle against vertical 35 º... -
Page 40: Float Switch
Page 39 of 61 Float Switch Float-switch opens before unit is turned on • If the float switch (N/C) is opened before the unit is turned on, then MTV1 is turned off. The drain pump and indoor fan will operate. •... -
Page 41: Led Display And Error Description
Page 40 of 61 LED Display and Error Description Complete Function PCB – TOTAL Control Type Fan speed setting LED Display Condition High speed Red LED On Normal Medium speed Yellow LED On Normal Low speed Green LED On Normal For all units - Green LED Error Description Blink... -
Page 42: Led Display On Master/Slave Connection
Page 41 of 61 LED Display on Master/Slave connection The error message indicating the defect status of all slave units will be shown in LED lights on the master unit. Master unit LED Unit No. Blink Remedy Unit 2 failure RED LED blinks 2 times, stops for 3s Check unit 2 communication plug and fix it Unit 3 failure... -
Page 43: Networking System
Page 42 of 61 Networking System Master-Slave Network The control PCB can be set either as a master unit or slave unit. MASTER UNIT FUNCTION a) The master unit sends data regarding its setting to the slave unit. b) The master unit settings are Unit ON/OFF, Mode, Fan Speed, Timer, Clock, Set Temperature, Louver Function, and Sleep Function for handset operation. -
Page 44: Master-Slave Network Setup
Page 43 of 61 Master-Slave Network Setup 1. Disconnect the communication plug from the control box 2. Communication plug A, B, A, B is printed on the main PCB. When you connect the wires, please ensure connection of A to A and B to B. 3. - Page 45 Page 44 of 61 First unit Middle unit Last unit iii. Wire connection check 1) After the wire connection is completed, please check that the wire colours correspond. 2) Check the wire contact by using a multimeter. contact contact contact contact contact contact...
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Page 46: Master-Slave Communication Method
Page 45 of 61 Master-Slave Communication Method There are two modes for the master-slave structure. Global Control communication The Master unit will broadcast the settings to all slave units. During normal operation, slave units can receive commands from its local wireless handset and wall pad control panel. Upon reception of master global commands, all slave unit settings will be replaced by the master settings. -
Page 47: Open Modbus Protocol
Page 46 of 61 Open Modbus protocol Transfer Mode: RTU, BAUD Rate: 9600bps, 8 data bit, 1 stop bit, None parity bit The communications require a delay of 80ms between reading an answer and sending the next command. All temperatures are equal to reading data*10 accuracy: 0.1 degree C. Supported Functions: Function Code Function Description... - Page 48 Page 47 of 61 Holding Register table: Description Address Type* Remark Cooling mode = 01(H) Humidify mode = 02(H) Mode setting 300000 Fan mode = 04(H) Heating mode = 08(H) Auto mode = 10(H) Low speed = 04(H) Medium speed = 02(H) Fan speed setting 300001 High speed = 01(H)
- Page 49 Page 48 of 61 Input Register table: Description Address Type* Remark Dip switch 1 status 400000 Dip switch 2 status 400001 Room temperature sensor 400002 Ti1 temperature sensor 400003 Ti2 temperature sensor 400004 Bit0 = Room temperature sensor error Bit1 = Ti1 temperature sensor error Bit2 = Ti2 temperature sensor error Bit3 = Float switch error Bit4 = Indoor coil low temperature protection...
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Page 50: Control Specifications: Flexible Function Pcb - Flexi Type Control
Page 49 of 61 Control Specifications: Flexible Function PCB – FLEXI Type Control Features • Condensate management with valve protection and NC alarm contact. • Integrated fan relays for zone control applications. • ON/OFF thermostat input and low-voltage modulating fan speed input flexibility. •... -
Page 51: Wiring Diagram
Page 50 of 61 Wiring Diagram EC-FLEXI Type Control EC-W1B unit wiring scheme IPA19-DL-EC-W1B 0~10Vdc from thermostat ALARM FUSE1 Main power supply L M H EH COM PROG1 230Vac 1Ph EMI1 RLY2 2 pipe sensor (Ti1) EH 2.5mm2 Cooling valve signal (230Vac) EMI2 MOTOR1 RLY3... -
Page 52: Control Logic Specification
Page 51 of 61 Control Logic Specification Unit Power ON/OFF a) The unit is turned ON when any of the fan speed inputs (H/M/L) are ON, or modulating signal input is more than 2.0 VDC. The unit is turned OFF only if all of the fan speed inputs (H/M/L) are OFF and modulating signal input is less than 2.0 VDC. -
Page 53: Electrical Heater Operation
Page 52 of 61 Electrical Heater Operation a) After unit is turned on, EH relay will be ON when EH signal is power on and EC motor RPM>300. b) If EC motor failure or EC motor RPM is lower than 300RPM, EH relay is opened at once. Low Temperature Protection of Indoor Coil in Winter This is frost protection for when the unit is off to prevent water in the coil and room from freezing. -
Page 54: Led Display And Error Description
Page 53 of 61 LED Display and Error Description Flexible Control PCB - FLEXI Control Type Fan speed setting LED Display Condition High speed Red LED On Normal Medium speed Yellow LED On Normal Low speed Green LED On Normal For all units - Green LED blinks Item Blink... -
Page 55: User Interface
Page 54 of 61 User Interface Remote Handset Interchange F and C on Display Press up and down buttons for 3 seconds, then release. Swing It is not available. Attention When unit with handset is the master unit, its settings are automatically sent to the slave units; Auto Cool-Heat operation will be applicable in 4- pipe system only. -
Page 56: Wired Wall Pad Controller
Page 55 of 61 Wired Wall Pad Controller Real Time display Day display Timer display Mode display Temperature display Fan speed display Master-Slave Button display Network icon Sleep icon Key lock SK2019 FCSD 1V-01-EC-001_1... - Page 57 Page 56 of 61 Buttons function Button Name ONOFF MODE DOWN Function Switch on or off Switch between Change Fan Switch Modify Modify the unit modes Speed interfaces parameters parameters Press to change function setting: (CNT stands for pressing times) （1）...
- Page 58 Page 57 of 61 When DIP SW2=ON, set point temperature is shown on temperature display area. When DIP SW2=OFF, room temperature is shown on temperature display area. Mode setting Press to set COOL, HEAT, FAN or DRY mode alternatively. Key Lock Press to set key lock function.
- Page 59 Page 58 of 61 13. Parameter checking Press six times to enter parameter checking interface. Local unit parameter is shown in temperature display area. Unit number is shown in real time hour area and parameter number is shown in real time minute area. For example, 2:03 stands for No.2 unit and No.3 parameter.
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Page 60: Sensor Resistance R-T Conversion Table
Page 59 of 61 Sensor Resistance R-T Conversion Table Resistance: R (25°C) = 10KΩ ± 1% Beta Constant: B (25/85) = 3977 ± 1% Rmin Rnom Rmax Rmin Rnom Rmax ( °C ) (KΩ) (KΩ) (KΩ) ( °C ) (KΩ) (KΩ) (KΩ) 182.7... - Page 61 Page 60 of 61 Resistance: R (25°C) = 10KΩ ± 1% Beta Constant: B (25/85) = 3977 ± 1% Rmin Rnom Rmax Rmin Rnom Rmax ( °C ) (KΩ) (KΩ) (KΩ) ( °C ) (KΩ) (KΩ) (KΩ) 5.614 5.759 5.907 1.417 1.474 1.532...
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Page 62: Troubleshooting
Page 61 of 61 Troubleshooting Symptoms Cause Remedy The fan coil does not - Check for presence of voltage No voltage start up - Check fuse on board Mains switch in the “OFF position - Place in the “ON” position Faulty room control - Check the room control - Check fan motor... - Page 63 Eurofred S.A. Marqués de Sentmenat 97 08029 Barcelona www.eurofred.es...