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Frigicoll CE-N8RS-01 Owner's Manual

Refrigerant leakage sensor
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Owner's Manual
Refrigerant Leakage Sensor
CE-N8RS-01 (K-N8RS)
Original manual.
Thank you very much for purchasing our product.
Before using your unit, please read this manual carefully and keep it for future reference.

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Summary of Contents for Frigicoll CE-N8RS-01

  • Page 1 Owner's Manual Refrigerant Leakage Sensor CE-N8RS-01 (K-N8RS) Original manual. Thank you very much for purchasing our product. Before using your unit, please read this manual carefully and keep it for future reference.

  • Page 2: Table Of Contents

    • This manual gives detailed description of the precautions that should be brought to your attention during operation. • In order to ensure correct service of the Refrigerant Leakage Alarmplease read this manual carefully before using the unit. • For convenience of future reference, keep this manual after reading it.
  • Page 3 4 INSTALLATION • 4.1 Precautions ..........15 • 4.2 Structure Installation ........17 • 4.3 Electrical Installation ........20 • 4.4 Sensor Installation ........38 • 4.5 Debugging ........... 40 • 4.6 Attachment I Error Description ....42 • 4.7 Attachment II Reset Instructions ....47...

  • Page 4: General Safety Precautions

    1 GENERAL SAFETY PRECAUTIONS 1.1 About the documentation • The original documentation is written in English. All other languages are translations. • The precautions described in this document cover very important topics, follow them carefully. • All activities described in the installation manual must be performed by an authorized installer.

  • Page 5: For The User

    WARNING Indicates a situation that could result in serious injury. --------------------------------------------------------------------- CAUTION Indicates a situation that could result in minor or moderate injury. --------------------------------------------------------------------- NOTE Indicates a situation that could result in equipment or property damage. --------------------------------------------------------------------- INFORMATION Indicates useful tips or additional information. 1.2 For the user •...
  • Page 6 • The appliance is not intended for use by persons, including children, with reduced physical, sensory or mental capabilities, or lack of experience and knowledge, unless they have been given supervision or instruction concerning use of the appliance by a person responsible for their safety. Children must be supervised to ensure that they do not play with the product.
  • Page 7 • Units are marked with the following symbol: This means that electrical and electronic products may not be mixed with unsorted household waste. Do not try to dismantle the system yourself: the dismantling of the system, treatment of the refrigerant, of oil and of other parts must be done by an authorized installer and must comply with applicable legislation.

  • Page 8: Accessory

    2 ACCESSORY Description Quantity Remarks Refrigerant leakage alarm Producing alarm and control box outputting signals Sensor Detecting refrigerant Sensor connecting wire Connecting the sensor Installation Manual and sensor control board Cross recessed head Providing installation self-tapping screw (ST3.9*25) instructions White plastic expansion pipe Fixing the base Wire clamp Fixing the base...

  • Page 9: Operation Instructions

    3 OPERATION INSTRUCTIONS 3.1 Safety Warning This section describes important safety information which can help to prevent injury or property damage to the user or other people. To ensure safe use and to avoid injury and property damage to you and others, please be sure to observe the following safety precautions.
  • Page 10 occur. The sensor needs to be reliably installed according to the installation instructions and be firmly fixed in a position that is easy to maintain. Otherwise, electric shock or a fire may occur. The sensor must be installed by professionals according to local regulations and installation instructions.
  • Page 11 always remain powered on unless it is maintained. Otherwise, the alarm will not work. Do not block the refrigerant leakage alarm. Otherwise, it cannot detect refrigerant leakage, and a fire may occur. Beeping of the buzzer indicates refrigerant leakage or a unit error. If the refrigerant leaks, a fire may occur.
  • Page 12 CAUTION The sensor must be replaced once leakage occurs or the service life ends. Only professionals can replace the sensor. During the installation and debugging of the air conditioner, avoid refrigerant leakage or discharge. Otherwise, the refrigerant leakage alarm may produce an alarm.
  • Page 13 ● Organic solvents/chlorine-containing gases Volatile organic compounds, alcohol, chlorine-containing gases may cause the sensor to give false alarms. When a structure is built or reconstructed, paint and wax will produce a large amount of organic solvents. Therefore, before sensor installation, ensure that the area is dry and ventilated.
  • Page 14 are full of dust ● Locations where fuel gas or other combustible gases are used, such as a kitchen ● Environments lacking oxygen ● Locations with water, oil, or condensation, such as a bathroom ● Locations with great voltage fluctuations ●...
  • Page 15 NOTE Clean the external surface of the refrigerant leakage alarm once every month to prevent dirt from blocking the air inlet. In dusty installation sites, appropriately shorten the cleaning period. Use a piece of dry cloth to softly wipe the surface. Do not use water, spray, or chemicals.

  • Page 16: Product Overview

    3.2 Product Overview N8RS-01 SENSOR ERROR OPERATION INDICATOR LEAKAGE ALARM Function of the R32 refrigerant leakage sensor: In the installation space of an IDU, if the refrigerant (R32) leaks to a certain concentration, the sensor produces an alarm to avoid fire or explosion hazard.

  • Page 17: Descriptions On Indicators

    3.3 Descriptions on Indicators N8RS-01 SENSOR ERROR OPERATION INDICATOR LEAKAGE ALARM No Item Description Sensor error indicator. This LED is on/off or blinks according to Yellow the sensor status. When the sensor is faulty, this LED blinks or remains on. (For details, see Attachment I Error Description on page 28.) Operation indicator.

  • Page 18: Installation

    4 INSTALLATION 4.1 Precautions WARNING The unit must be installed by a professional technician. Do not install the unit when it is powered on. Otherwise, electric shock will occur. Use power cables and communication wires of appropriate specifications, and do not apply any external force on the wiring terminals.
  • Page 19 Please install the refrigerant leakage alarm after completing painting of walls to prevent water, lime and sand from entering the alarm. CAUTION To ensure correct installation, read the “Installation” section of this manual. All the warnings provided here are important safety precautions and must be followed.

  • Page 20: Structure Installation

    4.2 Structure Installation Press the buckles with a screwdriver icon to separate the base and open the upper cover. Buckle CAUTION Do not use excessive force when raising the upper cover to avoid damaging the cover or the circuit board.
  • Page 21 Use appropriate tools and screws provided with the unit to fix the base in the specified position. Location to insert a screw 170mm...
  • Page 22 ≤ 1500mm NOTE The refrigerant leakage alarm needs to be installed in the installation space of the IDU, no more than 1.5 m above the ground.

  • Page 23: Electrical Installation

    4.3 Electrical Installation WARNING This unit will preheat for three minutes after it is powered on and then work normally. In a normal working state, no indicators are on. Never perform any installation, maintenance or any other operation when the unit is powered on in preheating or normal working state.
  • Page 24 stress on the terminals. Do not pull the power cable forcibly; otherwise, the wiring may become loosened or the terminal blocks may be damaged. Strong current wires such as power cables cannot be connected to weak current wires such as communication lines;...
  • Page 25 CAUTION Do not bond and connect the communication line. The communication copper wire cannot be openly exposed. Otherwise, communication abnormal. Connecting cables between the sensor control board and IDU extension board must be connected by matching the letters. DO NOT cross connections. Use the wire provided with the unit as the communication cable between the sensor control board and sensor.

  • Page 26: Connection Diagram

    4.3.1 Connection Diagram Yellow Green Sensor control board CN1 CN4 SW1 SW2 SW3 1 2 1 2 1 2 Power in 220–240 V Alarm or a 50 Hz ventilation device Sensor Main control Extension board board CN18...
  • Page 27 NOTE Devices in the dotted line boxes in the wiring diagram are not parts of this unit. Use cables with proper diameters to connect them according to the installation instructions. The wiring diagram is for reference purposes only and can vary with the actual product. WARNING Adjusting switches SW1, SW2, and SW3 is forbidden.
  • Page 28 Port Attribute Description 1 CN1 Input Power supply input 220–240V~ 50Hz 2 CN4 Output Output voltage 220–240V~, maximum output current 1 A. Connecting to an air discharge fan or additional alarm, which can be linked when refrigerant leakage is detected CN2-D Output Communicating with the extension board and connecting to the common GND terminal...
  • Page 29 4.3.2 Power Cable Connection WARNING The refrigerant leakage sensor needs to be powered all the time to operate normally. Please use an uninterruptible power supply. The core of the power cable must be made of copper, and the wire cross-sectional area cannot be less than 1 mm2.
  • Page 30 4.3.3 Power Cable Wiring Guide Wiring method 1: Use round-type terminals of the correct specifications to connect the power terminal CN1. Lay the power cable through the hole on the left of the refrigerant leakage alarm, and fix the cable with the wire clamp to avoid placing stress on the terminals.
  • Page 31 WARNING The cable cannot contact any component on the main board.
  • Page 32 Wiring method 2: Use round-type terminals of the correct specifications to connect the power terminal CN1. Lay the power cable through the hole on the base of the refrigerant leakage alarm, and fix the cable to the base with a cable tie to avoid placing stress on the terminals.
  • Page 33 4.3.4 CN4 Port Wiring (Optional) The CN4 port is used to connect a ventilation device or additional alarm device, which can be triggered to activate when refrigerant leakage is detected. This function is optional and the user can install the device based on their actual needs. It is recommended that the buzzer sound of the refrigerant leakage alarm be at least 15 dB(A) higher than the background noise.
  • Page 34 made of copper, and the wire cross-sectional area cannot be less than 1 mm CAUTION If no additional alarm device is installed, do not connect any cable to this port. CN4 port has no output in its normal working state, and provides a strong current in the event of a leakage alarm.
  • Page 35 4.3.5 Wiring Guide of a Ventilation or Alarm Device Wiring method 1: Lay the cable through the hole on the left of the refrigerant leakage alarm to the terminals of CN4, and fix the cable with the wire clamp to avoid placing stress on the terminals.
  • Page 36 Wiring method 2: Lay the cable through the hole on the base of the refrigerant leakage alarm to the terminals of CN4, and fix the cable to the base with a cable tie to avoid stress on the terminals. Connect the other end of the cable to the power input end of a ventilation or alarm device.
  • Page 37 4.3.6 Communication Wire Connection WARNING Do not connect the communication wire when the power is on. Otherwise, the circuit board will be damaged. Do not connect the power cable (high voltage) to the communication (low voltage) terminal. Otherwise, the circuit board will be damaged. Communication wire terminals of CN2 must be connected to the terminals with corresponding letters of the IDU extension board.
  • Page 38 CAUTION A communication wire is not included and needs to be configured by the user. It is recommended that an ordinary PVC-sheathed flexible cable be used as the communication wire with a cross-sectional area not less than 0.75 mm...
  • Page 39 Wiring Guide of a Communication Wire Wiring method 1: Connect a communication wire to terminals A, B, and D of CN2 of the refrigerant leakage alarm, lay the wire through the hole on the right of the base, along the internal edge of the sensor, and to wiring terminals A and B of CN5 and terminal D of CN3 on the extension board.
  • Page 40 Wiring method 2: Lay the communication wire through the hole on the base of the refrigerant leakage alarm to terminals A and B of CN5 and terminal D of CN3 on the IDU extension board. Fix the wire to the base with a cable tie to avoid placing stress on the terminals.

  • Page 41: Sensor Installation

    4.4 Sensor Installation WARNING Do not connect the cable of the sensor when the power is on. CAUTION Use the wire provided with the unit as the connecting cable of the sensor. Make sure that the cable is not clamped when buckling the upper cover and bottom cap.
  • Page 42 Step 2: Install the sensor to the slot on the upper cover with the sensor detector aligning with the cover air inlet. Connect the other end of the connecting cable to CN6 on the sensor control board, and close the cover.

  • Page 43: Debugging

    4.5 Debugging 4.5.1 Debugging Precautions ● The installation and debugging personnel must operate in line with the relevant regulations of the local country/region. ● Debugging must be performed by professionals. Do not debug the unit by yourself. ● Conduct a test run of the refrigerant leakage alarm after the air-conditioning system and the alarm are installed and can be powered on.
  • Page 44 Power on the refrigerant leakage alarm. Does the green indicator turn on and Check whether the power automatically turn off after three minutes? supply is normal. Troubleshoot according to Does the yellow indicator turn on? Attachment I Error Description. Troubleshoot according to Does the red indicator turn on? Attachment I Error Description.

  • Page 45: Attachment I Error Description

    Ask professionals to maintain the unit and replace parts. Only Frigicoll designated parts can be used for replacement. After the refrigerant leakage alarm is installed, it must be always powered on unless it is maintained.
  • Page 46 Refrigerant Leakage Alarm Status Error Status Description Solution Green Yellow Buzzer CN2-A CN2-B CN4 Code 1. Immediately ventilate the room and put out all open flames. Contact professional personnel to confirm and rectify the fault. 2. After confirmation and maintenance, ensure that the refrigerant and high- concentration interference gases in the Leakage alarm:...
  • Page 47 1. Ask a professional to replace the sensor. 2. Power on the refrigerant leakage alarm, and use an insulation rod to press the S1 button for 10s to reset the unit, as described in Attachment II. If Blinking EC1 Fault alarm: end of all the indicators turn on for 2s and turn 1s every Output...
  • Page 48 Refrigerant leakage alarm power-off or poor connection: When the IDU is connected to a power supply, this error may be caused by refrigerant leakage Ask a professional to check the power Output EC1 Output Output alarm power-off or supply and wiring and rectify the fault. poor connection between port CN2-B or CN2-D on the...
  • Page 49 CAUTION When the refrigerant leakage alarm produces an alarm, it is exposed to a high-concentration responding gas, which will deteriorate the sensor sensitivity. Therefore, it should be replaced with a new sensor. When the S1 button is pressed for 10s and the sensor is reset, the sensor service life counting data is cleared.

  • Page 50: Attachment Ii Reset Instructions

    4.7 Attachment II Reset Instructions WARNING Do not directly use your hand or use a conductive object to contact the S1 button. Otherwise, electric shock may occur. Only professionals can press the S1 button. Failure Reset Step 1: Open the upper cover of the refrigerant leakage alarm control box according to the installation instructions.
  • Page 51 Reset button Insulation rod Insulating gloves...

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