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Polar Air PFWB-V-AC Series Installation, Operation And Service Manual

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INSTALLATION, OPERATION
AND SERVICE MANUAL
PFWB(C)-V/P-AC
UNIVERSAL FLOORSTANDING

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  • Page 1 INSTALLATION, OPERATION AND SERVICE MANUAL PFWB(C)-V/P-AC UNIVERSAL FLOORSTANDING...
  • Page 2 Page 1 of 56 INVESTING IN QUALITY, RELIABILITY & PERFORMANCE. ISO 9001 QUALITY World Leading Design and Technology Every product is manufactured to Equipped with the latest air-conditioning test rooms and meet the stringent requirements of manufacturing technology, we produce over 50,000 fan the internationally recognized ISO coil units each year, all conforming to the highest 9001 standard for quality assurance in...

  • Page 3: Table Of Contents

    Page 2 of 56 Table of Contents Model Code Nomenclature ..............................3 A.1. General Description................................4 A.2. Unit Appearance ................................. 5 A.3. General Specifications ................................. 6 2-pipe Systems ................................6 4-pipe Systems ................................10 A.4. Coil Data .................................... 12 2-Pipe Systems ................................12 4-Pipe Systems ................................

  • Page 4: Model Code Nomenclature

    Page 3 of 56 PFWB Notation Description Universal Uncased Unit PFWB 3R: 2-pipe 3 rows 4R: 2-pipe 4 rows 3+1R: 4-pipe with 3rows cooling and 1 row heating Unit Size (See General Specification Section A for cooling and heating capacities.) V –...

  • Page 5: Technical Data

    Page 4 of 56 Technical Data Bearing Structure The bearing structure is made of galvanized sheet-steel with holes for attaching the structure to the wall/ceiling. The “V” type drain pan is used in the unit which ensure the unit can be installed vertically and horizontally. Fire resistant insulation is fitted internally to provide both thermal and acoustic insulation.

  • Page 6: Unit Appearance

    Page 5 of 56 PFWBC-VAR PFWBC-HAR PFWB PA24 PFWBC-VP-AC-001...

  • Page 7: General Specifications

    Page 6 of 56 2-pipe Systems Product range: PFWB(C) Universal Uncased/Cabinet Fan Coil Unit PFWB (3R)-V~ Universal Uncased 2-pipe Unit with 3-row Coil and AC motor PFWBC(3R)-V~ Universal Cabinet 2-pipe Unit with 3-row Coil and AC motor PFWB(C)-3R-[Size]-V~ Configuration 2-pipe Number Of Fan Blowers Single Twin...
  • Page 8 Page 7 of 56 Product range: PFWB(C) Universal Uncased/Cabinet Fan Coil Unit PFWB(3R)-V~ Universal Uncased 2-pipe Unit with 3-row Coil and AC motor PFWBC(3R)-V~ Universal Cabinet 2-pipe Unit with 3-row Coil and AC motor PFWB(C)-3R-[Size]-V~ Configuration 2-pipe Number Of Fan Blowers Four (V/Ph/ 220-240 / 1 / 50-60...
  • Page 9 Page 8 of 56 Product range: PFWB(C) Universal Uncased/Cabinet Fan Coil Unit PFWB(4R)-V~ Universal Uncased 2-pipe Unit with 4-row Coil and AC motor PFWBC(4R)-V~ Universal Cabinet 2-pipe Unit with 4-row Coil and AC motor Non-standard configuration PFWBC-4R-[Size]-V~ Configuration 2-pipe Single Twin Number Of Fan Blowers 220-240 / 1 / 50-60...
  • Page 10 Page 9 of 56 Product range: PFWB(C) Universal Uncased/Cabinet Fan Coil Unit PFWB(4R)-V~ Universal Uncased 2-pipe Unit with 4-row Coil and AC motor PFWBC(4R)-V~ Universal Cabinet 2-pipe Unit with 4-row Coil and AC motor Non-standard configuration PFWB(C)-4R-[Size]-V~ Configuration 2-pipe Number Of Fan Blowers Four Power Supply (V/Ph/Hz)

  • Page 11: 4-Pipe Systems

    Page 10 of 56 4-pipe Systems Product range: PFWB(C) Universal Uncased/Cabinet Fan Coil Unit PFWB(3R+1)-P~ Universal Uncased Unit - Auxiliary heating coil (1 row) PFWBC(3R+1)-P~ Universal Cabinet Unit - Auxiliary heating coil (1 row) Non-standard configuration PFWB(C)(3R+1)-[Size]-P~ Configuration 2-pipe Number Of Fan Blowers Single Twin Four...
  • Page 12 Page 11 of 56 5.99 10.98 21.8 37.46 48.25 15.79 23.59 35.94 48.96 Heating Pressure 4.43 8.75 16.28 29.3 39.69 13.22 20.16 29.49 Drop 2.97 12.55 23.88 30.22 10.38 16.19 21.48 33.4 Water Content 0.88 0.99 1.28 1.59 1.68 2.32 2.63 2.92 3.23...

  • Page 13: Coil Data

    Page 12 of 56 2-Pipe Systems COIL DATA (2 PIPE SYSTEM 3 ROW) Fin width Fin height Fin Length Fins per No. of No. of Tube Ø Model (mm) (mm) (mm) Inch Rows Circuits (mm) PFWB(C)-06 PFWB(C)-09 PFWB(C)-12 PFWB(C)-15 PFWB(C)-18 12.7 9.52 PFWB(C)-24...

  • Page 14: Sound Power Data

    Page 13 of 56 Model PFWBC-06 PFWBC-09 PFWBC-12 PFWBC-15 PFWBC-18 Speed Sound Power 50.7 43.6 38.3 52.1 46.9 42.0 55.7 49.7 44.9 58.0 53.3 48.9 60.0 54.8 50.7 dB(A) 20.0 Hz 17.5 18.8 16.8 19.1 15.4 19.9 17.9 19.6 19.9 18.5 13.6 16.9...
  • Page 15 Page 14 of 56 Model PFWBC-24 PFWBC-30 PFWBC-36 PFWBC-40 Speed Sound Power dB(A) 61.3 57.3 53.7 63.2 58.9 55.5 65.8 62.7 57.1 68.7 66.6 62.9 20.0 Hz 13.5 14.7 10.4 11.2 17.8 13.2 12.3 11.1 11.0 25.0 Hz 15.4 12.2 10.0 14.7 14.2...

  • Page 16: Dimensional Drawings

    Page 15 of 56 Dimensional Drawings: PFWB series Model PFWB-06 112.5 PFWB-09 112.5 PFWB-12 112.5 PFWB-15 112.5 PFWB-18 1008 112.5 PFWB-24 1478 1508 112.5 PFWB-30 1478 1508 112.5 PFWB-36 1628 1658 112.5 PFWB-40 1778 1808 112.5 (All dimensions shown in mm) PA24 PFWBC-VP-AC-001...
  • Page 17 Page 16 of 56 Dimensional Drawings: PFWBC series Model PFWBC-06 112.5 PFWBC-09 112.5 PFWBC-12 1058 112.5 PFWBC-15 1208 112.5 PFWBC-18 1258 1008 112.5 PFWBC-24 1758 1478 1508 112.5 PFWBC-30 1758 1478 1508 112.5 PFWBC-36 1908 1628 1658 112.5 PFWBC-40 2058 1778 1808 112.5...

  • Page 18: Safety Precautions

    Page 17 of 56 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. Ensure all local and national safety codes, laws, regulations, as well as general electrical and mechanical safety •...

  • Page 19: Installation And Location

    Page 18 of 56 The unit location should be established by the installation designer, services engineer or by a technically competent person before installation. It should take into account technical requirements as well as the relevant current laws and regulations. The fan coil should be installed by a qualified company, also in accordance with the relevant laws and regulations of the country of installation.

  • Page 20: Installation

    Page 19 of 56 The fan coils have been designed and made for installation in heating and air-conditioning systems. The characteristics of the water fittings are given below: Main pipes connection The position of the water fittings may be reversed from left to right during installation. Installation diagram of water connections 1.

  • Page 21: Coil Direction Interchange

    Page 20 of 56 (Note: Coil performance may be changed) Step 1: Remove the front cabinet. Step 2: Remove 2 screws on the coil’s metal plate. Step 3: Remove 8 screws from both sides of the coil, then take out coil. Step 2 Step 3 Step 4: Change the coil direction and screw back into the casing.

  • Page 22: Electrical Connection

    Page 21 of 56 Wiring connection must be done according to the wiring diagram on the unit. The unit must be GROUNDED well. An appropriate strain relief device must be used to attach the power wires to the terminal box. A 20mm hole is designed on the S terminal box for field installation of the strain relief device.
  • Page 23 Page 22 of 56 Vertical type Piping for 2-Pipe System 3-Way 4 Port Valve 3/4” Vertical Drain Pan Water Outlet 3/4” Water Inlet 3/4” Piping for 4-Pipe System 3-Way 4 Port Valve 1/2” for Heating Coil 3-Way 4 Port Valve 3/4” for Cooling Coil Vertical Drain Pan Hot Water Outlet 1/2”...

  • Page 24: Maintenance

    Page 23 of 56 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 25: Cabinet Removal

    Page 24 of 56 Step 1: Open the top cover1 and 2 as shown below. Step 2: Loosen eight 8 screws inside. Step 3: Remove the cabinet. 8 Screws Top cover 2 Top cover 1 Step 1: Remove the front cabinet. Step 2: Loosen 6 screws on both sides of the fan deck, then remove.

  • Page 26: Control Specifications: Intelligent Function Control (I Type)

    Page 25 of 56 Code 2-Pipe Return air Sensor Return air temperature (Tr) Analogue Input Chilled water Sensor Water inlet temperature sensor (Ti1) Hot water Sensor Water outlet temperature sensor (Ti2) IR receiver X-DIS 1 Digital communication port to LED display/IR receiver board. Input Wired wall pad TTL1...

  • Page 27: Wiring Diagrams For I Type

    Page 26 of 56 Intelligent Control Wiring Diagram for PFWBC-AC PA24 PFWBC-VP-AC-001...

  • Page 28: Configuration Settings

    Page 27 of 56 Fan Coil Unit ON/OFF There are 4 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. By the manual control button on fan coil unit.

  • Page 29: Control Logics For 2-Pipe System

    Page 28 of 56 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. DA1 is turned on at 10VDC for 2 minutes, then check Ti1.
  • Page 30 Page 29 of 56 • When Tr > Ts+1 ºC , MTV1 and AUX2 is turned off. DA1 is at 0VDc. Fan runs at lowest (Modbus 300033 setting) speed. • MTV1 and AUX2 is turned off. DA1 is at 0VDc. Fan is turned off delaying 2 minutes. When unit is turned off, With Electrical Heater as booster（Modbus300047=1）...
  • Page 31 Page 30 of 56 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+3ºC, the unit runs under heating mode. • If Tr-3 ºC<Ts<Tr+3ºC, the unit runs under fan mode. •...

  • Page 32: Control Logics For 4-Pipe System

    Page 31 of 56 Control Logics For 4-Pipe System 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 Tr and Ts.

  • Page 33: Dehumidification Mode

    Page 32 of 56 • When Tr > Ts+1 ºC ºC , MTV2 and AUX2 is turned off. EH is turned off. DA2is at 0VDc. Fan (Modbus 300033 setting) runs at low speed. • MTV2 and AUX2 is turned off. DA2 is at 0VDc. Fan is turned off delaying 2 minutes. When unit is turned off, OVER-HEAT PROTECTION OF INDOOR COIL •...

  • Page 34: Control Logic For 2-Pipe With 6-Way Modulating Valve Configuration

    Page 33 of 56 Control logic for 2-pipe with 6-way modulating 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 runs at setting speed. •...
  • Page 35 Page 34 of 56 • If 28ºC<Ti1< 28（Modbus 300017 setting）+4ºC, EH is kept at original state. DA1 is at original state. • If Ti1 ≥ 28（Modbus 300017 setting）+4ºC, EH is turned off. DA1 output is based on water temperature difference (Ti1/Ti2) and Modbus parameter 300028 setting PID calculation.

  • Page 36: Sleep Mode

    Page 35 of 56 • SLEEP mode can only be set when the unit is in COOL or HEAT mode. • In COOL mode, after SLEEP mode is set, the indoor fan runs at auto speed and Ts will increase by 0.5ºC each 30minutes.

  • Page 37: Buzzer

    Page 36 of 56 The unit will beep once when it receives a signal. The system uses non-volatile memory to save the present operation parameters when system is turned off or in case of system failure or cessation of power supply. Operation parameters are mode, set temperature, louver’s position, and the fan speed.
  • Page 38 Page 37 of 56 If Tr ≧ 5ºC for 2 minutes • MTV2 is OFF. AUX2 is open. • DA2 is set to 0. If unit with 6-way valve, DA1 is • 5VDC. • Electric Heater is turned off. Indoor fan is turned off. •...

  • Page 39: Open Modbus Protocol

    Page 38 of 56 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 description...
  • Page 40 Page 39 of 56 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 41 Page 40 of 56 1=Setting temperature range is fixed. Cooling=24oC Heating=21oC Temperature band setting 300033 1~9, default:1 Reserved 300034 Reserved 300035 Reserved 300036 Reserved 300037 Reserved 300038 Reserved 300039 Reserved 300040 Reserved 300041 Reserved 300042 Reserved 300043 Reserved 300044 Reserved 300045 0=2-pipe+MTV.
  • Page 42 Page 41 of 56 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 43: Modbus Network Setup For Fcu Group

    Page 42 of 56 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 a.
  • Page 44 Page 43 of 56 3.3.1) After the wire connection is completed, please check that the wire colors 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 45: Led Display And Error Description : I-Type (Optional)

    Page 44 of 56 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 Normal Low speed Green LED On Normal For all units - Green LED...

  • Page 46: Control Specifications : Terminal Strip Only (T Type)

    Page 45 of 56 T1 Control Wiring diagram: PA24 PFWBC-VP-AC-001...
  • Page 47 Page 46 of 56 T2 Control Wiring diagram: PA24 PFWBC-VP-AC-001...

  • Page 48: User Interface

    Page 47 of 56 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 49: Wired Wall Pad Controller Operation Guide

    Page 48 of 56 LED display Code Legend Code Legend Code Legend Monday Auto Mode Unit address Tuesday Sleep mode Unit No. / Error code Wednesday Swing mode Weekly timer Thursday LED lock C-cooling Friday Setting Temperature H-heating Saturday Room Temperature Energy consumption Sunday RH (if need)

  • Page 50: Operation Guide

    Page 49 of 56 Timer-ON time PM2.5 density (if need) Mode setting (When Timer-ON is off: Current time) Timer-OFF Data Display On/Off Button Timer-OFF time RH percentage Mode setting Cooling Mode Fahrenheit degree Fan speed setting Dehumidification Celsius degree Parameter setting Heating Mode Ventilation 0-Auto.
  • Page 51 Page 50 of 56 Password Setting: Press to select number position and Press to increase or decrease number. 1111 is a default password for below parameter reading. 8888 is a default password for below parameter reading and setting. Press to read U001~U031 parameters. Press to set U001~U031 parameters and Press to increase or decrease parameter...
  • Page 52 Page 51 of 56 S31/S32 displays “U022”, which is used to select Tr sensor. 0=the sensor in the WWP. 1=the sensor in the PCB. S31/S32 displays “U023”, which is used to display cooling and heating energy consumption. 0=S34/S35/S36/S37 disappears 1=S34/S35/S36/S37 appears In cooling and dehumidification mode, cooling energy consumption is shown.

  • Page 53: Error Code List

    Page 52 of 56 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. Check if Ti1 plug is connected or not. Ti1 sensor unplugged or Indoor coil sensor 1 failure damaged.

  • Page 54: Dimensions And Installation

    Page 53 of 56 Dimensions and installation Use screw driver to remove the screw on the bottom PA24 PFWBC-VP-AC-001...

  • Page 55: Sensor Resistance R-T Conversion Table

    Page 54 of 56 Temp. Rmax Rnor (k Rmin Temp. Rmax Rnor (k Rmin (deg. C) (k Ohms) Ohms) (k Ohms) (deg. C) (k Ohms) Ohms) (k Ohms) 186.3613 179.2666 172.4247 25.9521 25.4562 24.9672 174.9608 168.4053 162.0793 24.6872 24.2274 23.7738 164.3317 158.2726 152.4218...
  • Page 56 Page 55 of 56 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...

  • Page 57: Troubleshooting

    Page 56 of 56 Symptoms Cause Remedy Check for presence of voltage No voltage Check fuse on board Mains switch in the “OFF position Place in the “ON” position The fan coil does not start up Faulty room control Check the room control Faulty fan Check fan motor Filter clogged...
  • Page 58 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...

This manual is also suitable for:

Pfwbc-v-ac seriesPfwb-p-ac seriesPfwbc-p-ac seriesPfwb-3r-06-v-i-acPfwb-3r-06-v-i-ac-var

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