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Summary of Contents for Polar Air SWC-V-EC-I
- Page 1 2019-IOM-SWC-V-EC-I-001...
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Page 2: Table Of Contents
E. Maintenance ..................................25 E.1. Opening and Closing of Lift-Up Grille Cover ........................25 E.2. Front Cover Assembly Removal ............................25 E.3. Air Vent and Water Purge Valves ............................. 25 E.4. Wiring Connections ................................25 F. Troubleshooting Guide ..............................26 2019-IOM-SWC-V-EC-I-001... -
Page 3: Installation
A. Installation A.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. • 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 4: Before Installation
9. Avoid electromagnetic control system interference, ensure control wires are installed separately from 110-240 VAC power supply wires. 10. Use shielded sensor cables in where electromagnetic waves present, 11. Install a noise filter if the power supply creates any disruptive noises. 2019-IOM-SWC-V-EC-I-001... -
Page 5: Mounting Plate Dimensions
Page 4 A.3. Mounting Plate Dimensions SWC-12/15/18–EC-I SWC-24–EC-I (All dimensions shown in mm) 2019-IOM-SWC-V-EC-I-001... -
Page 6: Mounting Plate Installation
1. Ensure that the hole for condensate drainage is correctly positioned. The height should be lower than the bottom edge of the indoor unit. 2. Drill a 65mm diameter hole with a descending slope. 3. Seal it off with putty after installation. 2019-IOM-SWC-V-EC-I-001... -
Page 7: Hydronic Unit Installation
If the flexible drain hose provided with the indoor unit is not long enough, please extend it by joining it to an extension hose (not provided). Be sure to insulate the connecting part of the extension drain hose with a shield pipe as shown. If the attached drain hose passes through an indoor area, insulate it with heat insulation material. 2019-IOM-SWC-V-EC-I-001... -
Page 8: Pipe Connections With Valve
Page 7 A.8. Pipe Connections with Valve Pre-assembly Coil connector Flexible hose Valve body with actuator Complete Assembly 2019-IOM-SWC-V-EC-I-001... -
Page 9: Control Specifications
Voltage free contact. Maximum load 5A. Output Modulating valve control 0~10Vdc for cooling water modulating valve control Modulating valve control 0~10Vdc for heating water modulating valve control In Modbus signal Terminals for local network serial connection Out Modbus signal 2019-IOM-SWC-V-EC-I-001... -
Page 10: Wiring Diagram
AUX2 CN4---Ec motor Auxiliary heating contact DIS---LED receiver display TTL---wired wall pad TR--- 220Vac/24Vac transformer 110C DA1--0~10Vdc signal for cooling modulaing valve Plug Electrical heater DA2--0~10Vdc singal for heating modulating valve FUSE 24Vac for modulating valve 40VA moter 2019-IOM-SWC-V-EC-I-001... -
Page 11: Control Logic Specifications
When Tr > Ts+1 ºC (Modbus 300033 setting), MTV1 and AUX2 are turned off. DA1 is at 0VDC. fan will run at lowest speed. When unit is turned off, MTV1 and AUX2 are turned off. DA1 is at 0VDC. Fan is turned off after 2 minutes. With Electrical Heater as booster (Modbus300043=1) 2019-IOM-SWC-V-EC-I-001... - Page 12 PRO INPUT FUNCTION Standard Setting when the unit is on: If PRO input is closed for 60S, the unit is turned off. If PRO input is opened for 60S, the unit is turned on. Other function can be set in Modbus. 2019-IOM-SWC-V-EC-I-001...
- Page 13 If the indoor coil temperature sensor is damaged or not connected, the protection mode will be overridden and the unit will work according to the pre-heat and post-heat program. DEHUMIDIFICATION MODE When dehumidification mode is on, AUX1 is turned on and fan is turned on at low speed. AUTO MODE (Not available) 2019-IOM-SWC-V-EC-I-001...
- Page 14 If Ti1 < 70ºC, then unit keep original state. If the indoor coil temperature sensor is damaged or not connected, then the protection mode will be overridden and the unit will work according to the pre-heat and post-heat program. 2019-IOM-SWC-V-EC-I-001...
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Page 15: Sleep Mode
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. 2019-IOM-SWC-V-EC-I-001... -
Page 16: Buzzer
EH (if present) is switched on. Indoor fan is turned on at low speed. If Tr ≧ 5ºC for 2 minutes, MTV2 is turned off. AUX2 is off. DA2 is 0VDC. (DA1 is 5VDC if using 6-way valve) Electric Heater is turned off. Indoor fan is switched off. 2019-IOM-SWC-V-EC-I-001... -
Page 17: Open Modbus Protocol
BIT0 = Icon of Timer ON, BIT1 = Icon of Timer OFF, Icon of Timer ON or OFF 300014 1 = enable, 0 = disable Minimum output DA1 300015 Default 25% (2.5vdc) Minimum output DA2 300016 Default 25% (2.5vdc) Pre-heat temperature setting 300017 25~35, default: 30 2019-IOM-SWC-V-EC-I-001... - Page 18 Unit power input at High speed 300071 W*10 Unit power input at Med. speed 300072 W*10 Unit power input at Low speed 300073 W*10 Unit heat capacity at High speed 300074 KW*10 Unit heat capacity at Med. speed 300075 KW*10 2019-IOM-SWC-V-EC-I-001...
- Page 19 Heat capacity terms 400024 0~100, Reserved 400025 Reserved 400026 EC motor1 actual RPM 400036 EC motor2 actual RPM 400037 EC motor1 error 400038 EC motor2 error 400039 * R = read only, W = write only, R/W = read and write. 2019-IOM-SWC-V-EC-I-001...
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Page 20: Led Display And Error Descriptions
Green LED blinks 7 Filter switch is PCB) times, stops for 3s opened. 2. replace teh new filter Electric Heater Green LED blinks 8 Only for unit with 1. Change fan speed to high. failure times, stops for 3s 2019-IOM-SWC-V-EC-I-001... -
Page 21: Master Slave Network Setup
Check wire contacts by a multi- connections are correct. If the resistance meter after connections. between two wire contacts is too high, reconnect the wire contacts. Reconnect the communication plug to the control box. First unit Middle units Last unit 2019-IOM-SWC-V-EC-I-001... -
Page 22: User Interface
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. “Louver” function is available. “Swing” function is not applicable. European version only uses degree C setting. 2019-IOM-SWC-V-EC-I-001... -
Page 23: Wall Pad
When power is on, press for 5 seconds to enter Off by Timer interface. Range is from 30 to 720 minutes. Time is increased by 30 minutes for every press. Sleep Mode: When power is on, press for 5 seconds until displayed. 2019-IOM-SWC-V-EC-I-001... - Page 24 Parameter 20: Offset of sensor in wired wall pad: -5~5, default: -3 Parameter 21: EH type, 0=without EH, 1=EH as booster, 2=EH as primary Parameter 22: Room temperature setting, 0=room sensor in wired wall pad; 1=room sensor in main PCB 2019-IOM-SWC-V-EC-I-001...
- Page 25 Page 24 Dimensions and Installation 1. Remove the screw on the bottom. 2. Connect the communication plug to TTL1 terminal on PCB. 3. Fix the mounting plate and the install the display. 2019-IOM-SWC-V-EC-I-001...
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Page 26: Maintenance
Close the purging valve when no bubbles appear. Open the water outlet valve. E.4. Wiring Connections Unit components are wired to the terminal block of the indoor unit. Wiring can be accessed from the terminal block inside the control box. 2019-IOM-SWC-V-EC-I-001... -
Page 27: Troubleshooting Guide
Page 26 F. Troubleshooting Guide 2019-IOM-SWC-V-EC-I-001... - Page 28 2019-IOM-SWC-V-EC-I-001...
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