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Polar Air PDWC-V-AC Installation, Operation And Service Manual

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INSTALLATION, OPERATION
AND SERVICE MANUAL
PDWC-V/P-AC
MEDIUM STATIC DUCTED

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Summary of Contents for Polar Air PDWC-V-AC

  • Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PDWC-V/P-AC MEDIUM STATIC DUCTED...

  • Page 2: Eurovent Certification

    Page 1 of 44 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 the stringent requirements of the rooms and manufacturing technology, we produce internationally recognized ISO 9001 over 50, 000 fan coil units each year, all conforming standard for quality assurance in...

  • Page 3: Table Of Contents

    Page 2 of 44 Table of Contents A. Technical Data ................................4 A.1. General Description ............................... 4 A.2. General Specifications ............................5 A.2.1. 2-pipe Systems ..............................5 A.2.2. 4-pipe Systems ..............................7 A.3. Coil Data................................8 A.4. Sound Data ................................9 A.5.
  • Page 4 Page 3 of 44 MODEL CODE NOMENCLATURE PDWC -800 Notation Description PDWC Medium Static Hydronic Ducted Unit 3R: 2-pipe 3-row 4R: 2-pipe 4-row 3R+1: 4-pipe 3-row for cooling and 1 row for heating Unit Size (See General Specification Section A for cooling and heating capacities.) V –...

  • Page 5: Technical Data

    Page 4 of 44 A. Technical Data A.1. General Description The Duct Fan Coil is designed to meet and exceed the demanding requirements for efficiency and quiet operation. Structure-The structure is made of heavy gauge galvanized steel panels with couplings for the connection of ducting and a gravity drain pan with insulation for condensation.

  • Page 6: General Specifications

    Page 5 of 44 A.2. General Specifications A.2.1. 2-pipe Systems Product range: PDWC-3R-V-AC 3-row coil 2-pipe with AC motor(s) PDWC-3R-[Size]-V-AC 1000 1400 1600 2000 Configuration 2-pipe Number Of Fan Blowers Single Twin Four Unit Configuration Power Supply (V/Ph/Hz) 220~240 / 1 / 50~60 1609 1679 2335...
  • Page 7 Page 6 of 44 Product range: PDWC-4R-V-AC 4-row coil 2-pipe with AC motor(s) PDWC-4R-[Size]-V-AC 1000 1400 1600 2000 Configuration 2-pipe Unit Number Of Fan Blowers Single Twin Four Configuration Power Supply (V/Ph/Hz) 220~240 / 1 / 50~60 1549 1649 2274 2765 3155 4381...

  • Page 8: 4-Pipe Systems

    Page 7 of 44 A.2.2. 4-pipe Systems Product range: PDWC-3R+1-V-AC 3-row coil for cooling and 1-row coil for heating 4-pipe with AC motor(s) PDWC-3R+1-[Size]-P-AC 1000 1400 1600 2000 Configuration 4-pipe Number Of Fan Blowers Single Twin Four Unit Configuration Power Supply (V/Ph/Hz) 220~240 / 1 / 50~60 1549 1649...

  • Page 9: Coil Data

    Page 8 of 44 A.3. Coil Data 2-Pipe Systems 3 rows coil Fin height Fin Length Fins per No. of Fin width No. of Tube Ø Model (mm) (mm) Inch Rows (mm) Circuits (mm) PDWC(3R)-400 PDWC(3R)-500 PDWC(3R)-600 PDWC(3R)-800 12.7 9.52 PDWC(3R)-1000 1080 PDWC(3R)-1400...

  • Page 10: Sound Data

    Page 9 of 44 A.4. Sound Data Sound Power (Inlet + Radiated) Model PDWC-400 PDWC-500 PDWC-600 PDWC-800 PDWC-1000 speed Sound Power 66.4 62.3 60.2 68.2 65.2 60.7 67.9 65.9 61.4 69.6 68.0 61.3 67.2 63.9 59.9 dB(A) 16.3 15.5 20.2 14.0 10.6 14.6...
  • Page 11 Page 10 of 44 Model PDWC-1400 PDWC-1600 PDWC-2000 speed Sound Power dB(A) 70.9 69.0 64.1 72.2 69.5 64.7 75.5 73.6 67.1 20Hz 11.6 20.4 19.3 11.2 17.8 25.5 10.6 23.0 23.4 18.9 25Hz 31.5Hz 14.9 13.2 13.0 15.4 10.4 12.3 21.3 18.8 14.6...

  • Page 12: Dimension Drawings

    Page 11 of 44 A.5. Dimension Drawings 2-pipe PA24 PDWC-VP-AC-001...
  • Page 13 Page 12 of 44 4-pipe PA24 PDWC-VP-AC-001...

  • Page 14: Installation

    Page 13 of 44 B. Installation B.1. Safety Precautions When installing, performing maintenance or servicing Polar Air fan coil units observe the • precautions stated in this manual as well as those stated on the labels attached to the unit.

  • Page 15: Location

    Page 14 of 44 B.2. Location Before installing and running the unit, please check the following: There must be enough space for unit installation and maintenance. Please refer to below figure for the unit's outlines and dimensions and for the minimum distance between the unit and the obstacle/ any obstructions/ its surroundings. Please ensure there is enough space for piping connections and electrical wiring.
  • Page 16 Page 15 of 44 CAUTION Make sure the top of the unit is level after installation. The drain pan is designed with a slight gradient to facilitate drainage. DISCHARGE AIR CAUTIONS Dimension M and N are determined by air duct design. Air duct should be fire-proof.

  • Page 17: Insulation

    Page 16 of 44 B.3.1. Insulation 1. The insulation design and materials should be complying with local and national codes and regulations. 2. Chilled water pipes and all parts on the pipes should be insulated. 3. It is also necessary to insulate the air duct. B.3.2.

  • Page 18: Maintenance

    Page 17 of 44 C. Maintenance C.1. General Maintenance Installation and maintenance should be performed by qualified personnel who are familiar with local codes and regulations, and are also experienced with this type of appliance. Confirm that the unit has been switched OFF before installing or servicing the unit. A good general maintenance plan will prevent damage to and unexpected shutting down of the equipment.

  • Page 19: Coil Removal Maintenance

    Page 18 of 44 C.5. Coil Removal Maintenance Unscrew and remove the outer drain pan. Unscrew and remove the inner drain pan. Unscrew coil mounting brackets. Remove the complete coil assembly. Reinstall it after maintenance. C.6. Electric Heater Replacement 1. Unscrew the old PDWC-EH module from the unit. Prepare a 2.

  • Page 20: Control Specifications: Intelligent Control (I Type)

    Page 19 of 44 D. Control Specifications: Intelligent control (I type) D.1. I/O Port Definitions for I Type Code Description Return air Sensor Return air temperature (Tr) Analogue Input Sensor 1 Water inlet temperature sensor (Ti1) Sensor 2 Water outlet temperature sensor (Ti2) IR receiver X-DIS 1 Digital communication port to LED display/IR receiver board.

  • Page 21: Wiring Diagrams For I Type

    Page 20 of 44 D.2. Wiring Diagrams for I Type PA24 PDWC-VP-AC-001...

  • Page 22: Control Logics For I Control For Ac-S1 (300029=1)

    Page 21 of 44 D.3. Control Logics for I Control for AC-S1 (300029=1) For 2-pipe with Valve Configuration COOL MODE When unit is turned on in cooling mode: If Tr ≥ Ts + 1ºC (Modbus 300033 setting), MTV1 is turned on. AUX1 is closed. Fan is turned on at setting speed. DA1 is turned on at 10VDC for 2 minutes, then check Ti1: When Ti1≤8ºC, DA1 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting PID calculation.

  • Page 23: Dehumidification Mode

    Page 22 of 44 When unit is turned off, EH is turned off. Fan is turned off after 2 minutes. OVER-HEAT PROTECTION OF INDOOR COIL If Ti1 ≥ 75ºC, then MTV1, AUX2, DA1 and EH are turned off. Indoor fan remains on and runs at high speed. If Ti1 <...
  • Page 24 Page 23 of 44 DEHUMIDIFICATION MODE When unit is turned on in dehumidification mode: a) AUX1 is turned on. Ts is 24 ºC. b) If Tr ≥ 25ºC for 30S, then MTV1 will be ON for 3 minutes, and then OFF for 4 minutes. DA1 is on at 3 times of (Modbus 300016 setting).

  • Page 25: Sleep Mode

    Page 24 of 44 When Tr > Ts- 1ºC (Modbus 300033 setting), MTV1 and AUX2 are turned off. DA1 is at 5VDC. fan is turned on at lowest speed. When unit is turned off, MTV1 and AUX2 are turned off. DA1 is at 5VDC. Fan is turned off after 2 minutes. With Electrical Heater as booster (Modbus300047=1) When unit is turned on in heating mode.
  • Page 26 Page 25 of 44 Position Angle 35º 57º 83º 100º For wired wall pad Louver angle: 0~100º, opens clockwise, with widest angle at 100º. Swing angle: 35~100º, opens clockwise to 68º. User may stop louver at any desired position between 35~100º. Buzzer The unit will beep once when it receives 1 signal.

  • Page 27: Open Modbus Protocol For Ac-S1

    Page 26 of 44 D.4. Open Modbus Protocol for AC-S1 Transfer Mode: RTU, BAUD Rate: 9600bps, 8 data bit, 1 stop bit, None parity bit The communications require a delay between reading an answer and sending the next command of 80ms. All temperature is equal to reading data*10 accuracy: 0.1 degree C.
  • Page 28 Page 27 of 44 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 29 Page 28 of 44 Reserved 300034 Reserved 300035 Reserved 300036 Reserved 300037 Reserved 300038 Reserved 300039 Reserved 300040 Reserved 300041 Reserved 300042 Reserved 300043 Reserved 300044 Reserved 300045 Software type 300046 0=2-pipe+MTV 1=2-pipe without valve 2=4-pipe+std valve 3=4-pipe+6-way valve EH type 300047 0=without EH, 1=EH as booster;...
  • Page 30 Page 29 of 44 Input Register table: Description Address Type* Remark Tr temperature sensor 400000 Ti1 temperature sensor 400001 Ti2 temperature sensor 400002 Reserved 400003 Reserved 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 Bit5 = Indoor coil over heat protection...

  • Page 31: Modbus Network Setup For Fcu Group

    Page 30 of 44 D.5. Modbus Network Setup for FCU group 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) Connection wire 3.1) If the total length of wire is more than 1000m, please use shielded wire in order to protect the signal transmission.
  • Page 32 Page 31 of 44 3.3) Wire connection check 3.3.1) After the wire connection is completed, please check that the wire colours correspond. 3.3.2) Check the wire contact by using a multimeter. contact contact contact contact contact contact 3.3.3) Check 1 and 2, 3 and 4, 5 and 6 to be sure connections are correct. 3.3.4) If the resistance between two wire contacts is too high, please check and reconnect the wire contacts.

  • Page 33: Led Display And Error Description- I Type (Optional)

    Page 32 of 44 D.6. LED Display and Error Description- I Type (Optional) LED receiver in ABS housing with 0.5m or 1.8m pre-wiring Complete Function PCB – I Type Control Fan speed setting LED Display Condition High speed Red LED On Normal Medium speed Yellow LED On...

  • Page 34: Control Specifications: Terminal Strip Only (T Type)

    Page 33 of 44 E. Control Specifications: Terminal Strip Only (T Type) E.1. Wiring Diagram (T Type) T1 (Standard Version) with Single Phase EH: PA24 PDWC-VP-AC-001...
  • Page 35 Page 34 of 44 T1 (Standard Version) with 3-Phase EH: PA24 PDWC-VP-AC-001...
  • Page 36 Page 35 of 44 T2 controlled by 24Vac input signal (Optional): PA24 PDWC-VP-AC-001...

  • Page 37: User Interface

    Page 36 of 44 F. User Interface F.1. Remote Handset for I-control Interchange C on Display Press up and down buttons for 3 seconds, then release. Louver It is not available. Swing It is not available. Attention When unit with handset is master, settings are automatically sent to slaves;...

  • Page 38: Wired Wall Pad Controller For I-Control

    Page 37 of 44 F.2. Wired Wall Pad Controller for I-Control F.2.1. LED display Code Legend Code Legend Code Legend Monday Heating Mode Fahrenheit degree Tuesday Ventilation Mode Celsius degree Wednesday Auto Mode Thursday Sleep mode 0-Auto; 1-Low;2-Medium; 3-High Friday Swing mode Unit address Saturday...

  • Page 39: Operation Guide

    Page 38 of 44 F.2.2. Operation guide On/OFF Press to turn on. Press it again to turn off. Button Mode button With wall pad on, press to select Cooling, Dehumidification, Heating, Ventilation or Auto sequentially.or Auto sequentially. Fan Speed Button Press S30 to change from 0 to3.
  • Page 40 Page 39 of 44 S31/S32 displays “U002”, which is used to set unit of temperature degree. 0=Celsius degree. 1=Fahrenheit degree. S31/S32 displays “U003”, which is used to select display temperature on LCD. 1=Setting temperature. 0=Room temperature. S31/S32 displays “U004”, which is used to set setting temperature range. 0=Setting temperature is from 16~30°C.
  • Page 41 Page 40 of 44 S31/S32 displays “U024”, which is used to set low speed RPM or control signal. S31/S32 displays “U025”, which is used to set medium speed RPM or control signal. S31/S32 displays “U026”, which is used to set high speed RPM or control signal. S31/S32 displays “U027”, which is used to set Delta T OF Ti1/Ti2.

  • Page 42: Error Code List

    Page 41 of 44 F.2.3. Error Code List Error Description Code Reason Remedy 1. Check if Tr plug is connected or not. Room sensor unplugged or Room temperature sensor error damaged. 2. Check if sensor’s resistance is correct or not. 1.

  • Page 43: Dimensions And Installation

    Page 42 of 44 F.2.4. Dimensions and Installation 1. Remove the screw on the bottom and remove the 2. Fix the back panel to wall and then connect the back connection panel. Display on the back panel. PA24 PDWC-VP-AC-001...

  • Page 44: Sensor Resistance R-T Conversion Table

    Page 43 of 44 G. 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) 182.7 191.8 26.11 26.9...

  • Page 45: Troubleshooting

    Page 44 of 44 H. Troubleshooting Symptoms Cause Remedy Check for presence of voltage No voltage Check fuse on board The fan coil does not start up Mains switch in the “OFF position Place in the “ON” position Faulty room control Check the room control Faulty fan Check fan motor...
  • Page 46 NORTH AMERICA EUROPE HONG KONG 991 Providence High C/ Rio Jucar, Nave 6. Pl El Saladar Office 6, 9th Floor, Block A, 6 on Ping Street Norwood, MA, 02065, USA Lorqui, Murcia, Spain, 30564 New Trade Plaza, Shatin, Hong Kong, T +1 (800) 326 9105 T (+34) 968 046 262 T (852) 2648-8887...

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