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Summary of Contents for Polar Air PFWSL-V-EC
- Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PFWSL-V/P-EC SLIM FLOORSTANDING...
- Page 2 Page 1 of 75 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 75 Table of Contents A. Technical Data ..................................5 A.1. General Description ................................5 A.2. General Specification ................................6 A.2.1. 2-Pipe Systems ................................6 A.2.2. 4-Pipe Systems ................................7 A.3. Coil Data ....................................8 A.3.1. 2-Pipe Systems ................................8 A.3.2. - Page 4 Page 3 of 75 E.6. Auto Speed ..................................37 E.7. Buzzer ....................................37 E.8. Auto Restart ..................................37 E.9.On/off Switch ..................................37 E.10.Drain pump ..................................37 E.11. Float Switch ..................................37 E.12. Electric heater safety switch ............................38 E.13. LOW TEMPERATURE PROTECTION OF INDOOR COIL IN WINTER ..................38 E.14.
- Page 5 Page 4 of 75 Model Code Nomenclature PFWSL I - ECM EC Motor Configuration Complete controller with VAV&VWV control logic EC motor driver suitable for connection to AC or EC modulating thermostat Chilled/Hot Water, 4-Pipe Chilled/Hot Water, 2-Pipe Chilled Water, 2-Pipe with Electric Heater Unit Sizes.
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Page 6: Technical Data
Page 5 of 75 A. Technical Data A.1. General Description The product represents all-in-one solution for cooling, heating and dehumidification. It achieves high energy saving levels as it can be combined with low-temperature heat generators such as heat pump, condensing boilers and solar collectors. With its sophisticated temperature regulator, it guarantees thermal comfort in every season. -
Page 7: General Specification
Page 6 of 75 A.2. General Specification A.2.1. 2-Pipe Systems Product range: PFWSL-ECM Super Slim Universal Fan Coil with EC Motor PFWSL-V~-ECM Super Slim Universal Unit 2-pipe with EC Motor PFWSL-[Size]-V~-ECM Configuration 2-pipe Number Of Fan Blowers Single Twin Unit Configuration Power Supply (V/Ph/Hz) 220~240/1/50... -
Page 8: 4-Pipe Systems
Page 7 of 75 A.2.2. 4-Pipe Systems Product range: PFWSL-P~-ECM Super Slim Universal Unit 4-pipe with EC Motor PFWSL-P~-ECM Super Slim Universal Unit 4-pipe with EC Motor PFWSL-[Size]-P~-ECM Configuration 2-pipe Number Of Fan Blowers Single Twin Power Supply (V/Ph/Hz) 220~240/1/50 Unit Configuration ~I: intelligent controller with VWV control logic Operation Control... -
Page 9: Coil Data
Page 8 of 75 A.3. Coil Data A.3.1. 2-Pipe Systems Fin width Fin height Fin Length Fins per No. of No. of Tube Ø Model (mm) (mm) (mm) inch Rows Circuits (mm) PFWSL-01 PFWSL-02 PFWSL-03 19.5 2.75 PFWSL-04 PFWSL-05 1089 A.3.2. -
Page 10: Sound Power Data
Page 9 of 75 A.4. Sound power data Model PFWSL-01-ECM speed 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power 30.4 33.4 34.2 38.2 40.5 44.3 46.1 49.9 51.6 53.7 dB(A) 20.0 -4.5 25.0 10.2 13.4 -0.2 31.5 12.1 12.2... - Page 11 Page 10 of 75 Model PFWSL-02-ECM speed 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power 30.3 33.4 34.1 38.8 40.6 44.4 46.9 49.2 51.5 53.7 dB(A) 20.0 -0.9 25.0 12.9 13.3 13.3 12.8 15.7 10.7 11.0 12.6 31.5 11.3...
- Page 12 Page 11 of 75 Model PFWSL-03-ECM speed 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power 37.1 38.5 39.3 40.2 42.9 47.9 51.7 52.9 53.8 56.4 dB(A) 20.0 -0.8 -3.3 -2.0 25.0 21.7 13.5 21.7 22.3 21.1 12.4 22.8 31.5...
- Page 13 Page 12 of 75 Model PFWSL-04-ECM speed 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power 32.5 37.5 38.0 41.5 44.8 48.2 50.5 53.2 55.4 57.1 dB(A) 20.0 -4.1 -4.9 -3.1 -5.4 25.0 12.9 12.0 14.6 13.6 11.3 31.5 -1.3...
- Page 14 Page 13 of 75 PFWSL-05-ECM Model speed 500RPM 600RPM 700RPM 800RPM 900RPM 1000RPM 1100RPM 1200RPM 1300RPM 1400RPM Sound Power dB(A) 32.7 35.4 38.4 41.3 45.0 48.0 51.7 54.1 55.9 57.9 -0.9 -0.6 20.0 25.0 18.3 10.8 13.6 12.6 12.2 14.8 12.1 11.9 31.5...
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Page 15: Dimensions
Page 14 of 75 A.5. Dimensions A5.1 Uncased unit dimensions MODEL 1038 1238 A.4.2 Cased unit dimensions MODEL 1135 1335 1535 1116 1315 1515 1008 1208 PA24 PFWSL-VP-ECM-001... -
Page 16: Unit Configuration
Page 15 of 75 A.6. Unit Configuration Model Type Cross Fan Quantity Model Dia.90*394 Dia.90*590 dia.90*785 2-dia.90*450 2-dia.90*550 Material Drive Direct Drive Type EC Motor Number of motors Motor Power supply 208~240V/1P/50~60Hz or 115V/1P/60Hz IP/Insulation class IP20/Class B Type Seamless copper tube mechanically bonded to corrugated aluminum fin Testing pressure Leakage test 2.5MPa for 3 minutes Material... -
Page 17: Valve Kit Information (Optional Part)
Page 16 of 75 A.7. Valve Kit Information (Optional Part) Code Description Photo 115~240VAC 1/2"2-way BCP18-RCS-VALVE-PFWSL-001 thermal valve kit 115~240VAC 1/2" 3-way BCP18-RCS-VALVE-PFWSL-002 thermal valve kit 24VAC 1/2" Modulating 2- BCP18-RCS-VALVE-PFWSL-003 way thermal valve kit 24VAC 1/2" Modulating 3- BCP18-RCS-VALVE-PFWSL-004 way thermal valve kit Electro thermal valve consist of electro thermal actuator and valve body. -
Page 18: Installation
Page 17 of 75 B. Installation B.1. Safety Precautions • When installing, performing maintenance or servicing 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 19: Operating Limits
Page 18 of 75 B.2. Operating Limits Power supplies Volt Phase 220/230 50/60 Water circuit Minimum entering water temperature +2 °C Maximum entering water temperature +80 °C Water side maximum pressure 1600 kPa B.3. Installation and Location ➢ PRELIMINARY INFORMATION General Operate in compliance with safety regulations in force. - Page 20 Page 19 of 75 PA24 PFWSL-VP-ECM-001...
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Page 21: Water Connections
Page 20 of 75 ➢ INSTALLATION The following descriptions of the various mounting phase and the relative designs refer to a version of the machine with fixtures on the right. The operations for the mounting of machines with fixtures on the left are exactly the same. Only the images are to be considered as a mirror image. -
Page 22: Electrical Connection
Page 21 of 75 R1/2¡± R1/2¡± CONDENSATE DRAINAGE For use in air-conditioning systems, the fan coils are fitted with a condensate-collecting tray to which a drainpipe can be connected. Connect an insulated drainage pipe (inside ø 16 mm.) to the hole of the tray and direct it towards a suitable drain Notes: Check that the condensation flows out regularly into the tray. -
Page 23: Maintenance
Page 22 of 75 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 experienced with this type of appliance. Confirm the unit has been switched OFF before installing or service. Prevent damage and unexpected shutting down of the fan coil unit. - Page 24 Page 23 of 75 C.4. Fan Motor Assembly Maintenance Step 1: Remove the side case R1/2¡± R1/2¡± Step 2: Loosen screws on the mounting brackets. EC motor can be removed. Step 3: Once finished with maintenance, remount the front panel. PA24 PFWSL-VP-ECM-001...
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Page 25: Control Specifications: Flexible Function Pcb - W Type Control
Page 24 of 75 D. Control Specifications: Flexible Function PCB – W Type Control D.1. I/O Port Definitions Code Descriptions Analogue input Coil temperature sensor Cooling / heating coil sensor (Ti1) High fan speed Medium fan speed 230 VAC input signals from wired thermostat Low fan speed 230 VAC input signals from wired thermostat Voltage input... -
Page 26: Wiring Diagrams
Page 25 of 75 D.2. Wiring Diagrams PA24 PFWSL-VP-ECM-001... -
Page 27: Control Logic Specifications
Page 26 of 75 D.3. Control Logic Specifications 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 2.0VDC or Motor RPM writing (MS30006) is above 200RPM. b) 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 2.0VDC and Motor RPM writing (MS30006) is 0;... -
Page 28: Modbus Protocol
Page 27 of 75 D.4. Modbus Protocol 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 80 ms. Holding Register table Description Address Type*... -
Page 29: Control Specifications: Intelligent Control (I Type)
Page 28 of 75 E. Control Specifications: Intelligent Control (I Type) E.1. I/O Port Definitions Code Description Return air sensor Return air temperature (Tr) Analogue 2-pipe coil circuit Water inlet temperature sensor (Ti1) Input sensor Hot water Sensor Water outlet temperature sensor (Ti2) LED display / IR X-DIS 1 Digital communication port to LED display / IR receiver board. -
Page 30: Wiring Diagram
E.2. Wiring diagram PA24 PFWSL-VP-ECM-001... -
Page 31: Control Logics For 2-Pipe System
Page 30 of 75 E.3. Control Logics for 2-pipe System E.3.1. With Modulating Valve Configuration COOL MODE 1. 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. DA2 is turned on at 10VDC for 2 minutes, then check Ti1, When Ti1<=8ºC, DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300027 setting PID calculation. - Page 32 Page 31 of 75 If 28ºC<Ti1<28（Modbus 3000017 setting）+4ºC, fan is on at original state; DA2 is at original state; If Ti1 ≥ 28（Modbus 3000017 setting）+4ºC , fan is on at setting speed; DA2 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300028 setting PID calculation. The output is minimum output (Modbus300015 setting)~10VDc;...
- Page 33 Page 32 of 75 AUTO MODE When unit is turned on in Auto mode, fan is turned on at setting speed for 30S, then check Tr and Ts; If Ts>=Tr+3 ºC, the unit is worked in heating mode; If Tr-3 ºC<Ts<Tr+3 ºC，the unit is worked in fan mode; If Ts<Tr-3 ºC，...
- Page 34 Page 33 of 75 ⚫ If Tr < Ts- 1ºC (Modbus 300033 setting), then cool operation is terminated and MTV1 and AUX1 are turned off. Indoor fan runs at set speed. DA2 output is 5Vdc; 2. When unit is turned off, MTV1 and AUX1 are off. DA2 is 5Vdc. Fan is turned off delaying 30s. 3.
- Page 35 Page 34 of 75 If Ti1 sensor is damaged, fan is worked at setting speed. When Tr > Ts+1ºC ,MTV2 and AUX2 is turned off; EH is turned off; DA2 is at 5VDc; fan is turned on at low speed. 2.
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Page 36: 4-Pipe Control Logic-With Modulating Valve Configuration
Page 35 of 75 E.4. 4-pipe Control Logic-With modulating Valve Configuration COOL MODE 1. 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. DA2 is turned on at 10VDC for 2 minutes, then check Tr and Ts;... - Page 37 Page 36 of 75 1. When unit is turned on in heating mode. When Tr ≤ Ts - 1 ºC(Modbus 300033 setting),MTV2 and AUX2 is turned on; Fan is turned on at setting speed; DA3 is at 10VDc for 2 minutes, then check Ti2: If Ti2<28ºC (Modbus 300017 setting), EH is turned on;...
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Page 38: Sleep Mode
Page 37 of 75 E.5. Sleep Mode a ) SLEEP mode can only be set when the unit is in COOL or HEAT mode. b) In COOL mode, after SLEEP mode is set, the indoor fan will run at auto speed and Ts will increase by 0.5ºC each 30minutes; Maximum setting temperature increased is 3ºC . -
Page 39: Electric Heater Safety Switch
Page 38 of 75 E.12. Electric Heater Safety Switch Before the electrical heater is turned on, the EH safety switch must be closed, EH is open for 3 minutes and EC motor RPM must be more than MODBUS300020 setting ... -
Page 40: Networking System
Page 39 of 75 E.14. Networking System 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 If the total length of wire is more than 1000m, please use shielded wire in order to protect the signal transmission. - Page 41 Page 40 of 75 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. Reconnect the communication plug to control box Using wired wall pad or Modbus to set each unit address PA24 PFWSL-VP-ECM-001...
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Page 42: Open Modbus Protocol
E.15. Open Modbus protocol 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 80 ms. All temperature is equal to reading data*10 accuracy: 0.1 degree C. Supported Functions Function Code Function decription... - Page 43 Page 42 of 75 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 44 Page 43 of 75 Setting temperature range 300032 0=setting temperature range is from 16~30 1=Setting temperature range is fixed. Cooling=24oC Heating=21oC Temperature band setting 300033 Reserved 300034 Reserved 300035 Reserved 300036 Reserved 300037 Reserved 300038 Reserved 300039 Reserved 300040 Reserved 300041 Reserved 300042...
- Page 45 Page 44 of 75 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...
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Page 46: User Interface
Page 45 of 75 F. User Interface F.1. Wired Wall Pad Controller Operation Guide F.1.1. 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... - Page 47 Page 46 of 75 F.1.2. Operation guide On/OFF Press to turn on; press it again to turn off. Button Mode With wall pad on, press to select Cooling, Dehumidification, Heating, Ventilation or Auto button sequentially. Fan Speed Button ， S30 is recycled from 0 to3；0_Auto speed, 1_Low speed; 2_Medium speed; Press 3__High speed.
- Page 48 Page 47 of 75 S31/S32 is display“U006” - "U0009", which are reserved to set parameters with optional accessory to measure PM2.5 and CO2 values. S31/S32 displays “U010~U011”, which are reserved. S31/S32 displays “U012”, which is used to set setting RH point. 30~70, default: 50 S31/S32 displays “U013”, which is used to set setting RH band.
- Page 49 Page 48 of 75 S31/S32 displays “U029”, which is used to read unit type. S31/S32 displays “U030”, which is used to read unit model. S31/S32 displays “U031”, which is used to read unit manufacturing date. Error code S32：E** blinks Bit0 = Room temperature sensor error Bit1 = Ti1 temperature sensor error Bit2 = Ti2 temperature sensor error Bit3 = Float switch error...
- Page 50 Page 49 of 75 C.2.2.3 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.
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Page 51: Remote Control Handset
Page 50 of 75 F.2. Remote control Handset Louver It is not available. 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 52 Page 51 of 75 F.2.1. Wall Pad, which is installed on the unit C.2.3.1 LED display Code Legend On/OFF Light Unit is On, the light is ON; Unit is OFF, the light is OFF; Mode Light When mode is set, the corresponding light is On; In auto mode, 3 LEDs are ON; Fan speed Light When fan speed is set, the corresponding light is on;...
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Page 53: Sensor Resistance R-T Conversion Table
Page 52 of 75 G. Sensor Resistance R-T Conversion Table Resistance: R (25°C) = 10KΩ ± 1% Beta Constant: B (25/85) = 3950 ± 1% Temp. Rmax Rnor Rmin Temp. Rmax Rnor Rmin (deg. C) (kOhms) (kOhms) (kOhms) (deg. C) (k Ohms) (kOhms) (kOhms) - Page 54 Page 53 of 75 Temp. Rmax Rnor Rmin Temp. Rmax Rnor Rmin (deg. C) (k Ohms) (k Ohms) (k Ohms) (deg. C) (k Ohms) (k Ohms) (k Ohms) 5.4018 5.3146 5.2283 1.4137 1.3722 1.3317 5.1907 5.1049 5.0199 1.3681 1.3275 1.2880 4.9890 4.9045 4.8210...
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Page 55: Troubleshooting
Page 54 of 75 H. Troubleshooting Symptoms Cause Remedy The fan coil does not 1. Check for presence of voltage No voltage start up 2. Check fuse on board Mains switch in the “OFF position 3. Place in the “ON” position Faulty room control 4. - Page 56 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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