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Summary of Contents for Daikin ARXM25N2V1B9
- Page 1 Installer reference guide R32 split series ARXM25N2V1B9 ARXM35N2V1B9 RXM20N2V1B9 Installer reference guide RXM25N2V1B9 English R32 split series RXM35N2V1B9...
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Page 2: Table Of Contents
Table of contents 6.6.2 About the refrigerant ............ 16 Table of contents 6.6.3 Precautions when charging refrigerant ......16 6.6.4 To determine the additional refrigerant amount ... 16 6.6.5 To determine the complete recharge amount ....17 6.6.6 To charge additional refrigerant ........17 1 General safety precautions 6.6.7 To fix the fluorinated greenhouse gases label ..... -
Page 3: Meaning Of Warnings And Symbols
▪ In potentially explosive atmospheres. comply with applicable legislation (on top of the ▪ In places where there is machinery that emits electromagnetic instructions described in the Daikin documentation). waves. Electromagnetic waves may disturb the control system, and cause malfunction of the equipment. - Page 4 ▪ Joints made in installation between parts of refrigerant system shall be accessible for maintenance purposes. WARNING Make sure installation, servicing, maintenance and repair comply with instructions from Daikin and with applicable legislation (for example national gas regulation) and are executed only by authorised persons. Installation space requirements NOTICE ▪...
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Page 5: Refrigerant
1 General safety precautions Ceiling-mounted Wall-mounted Floor-standing DANGER: RISK OF EXPLOSION unit unit unit Pump down – Refrigerant leakage. If you want to pump m (kg) m (kg) m (kg) down the system, and there is a leak in the refrigerant ≤1.842 —... -
Page 6: Brine
1 General safety precautions CAUTION WARNING When the refrigerant charging procedure is done or when ▪ ONLY use copper wires. pausing, close valve refrigerant tank ▪ Make sure the field wiring complies with the applicable immediately. If the valve is NOT closed immediately, legislation. -
Page 7: About The Documentation
Technical engineering data ▪ A subset of the latest technical data is available on the regional Daikin website (publicly accessible). ▪ The full set of latest technical data is available on the Daikin extranet (authentication required). Installer reference guide at a... -
Page 8: To Remove The Accessories From The Outdoor Unit
4 About the unit About the unit WARNING: FLAMMABLE MATERIAL The refrigerant inside this unit is mildly flammable. Overview: About the unit This chapter contains information about: ▪ Identification of the outdoor unit Identification NOTICE When installing or servicing several units at the same time, make sure NOT to switch the service panels between different models. -
Page 9: Installation Site Requirements Of The Outdoor Unit
5 Preparation CAUTION NOTICE ▪ Check if the installation location can support the unit's ▪ Do NOT stack the units on each other. weight. Poor installation is hazardous. It can also cause ▪ Do NOT hang the unit on a ceiling. vibrations or unusual operating noise. -
Page 10: Additional Installation Site Requirements Of The Outdoor Unit In Cold Climates
5 Preparation In any case, provide at least 300 mm of free space below the unit. Install the outdoor unit away from direct sea winds. Additionally, make sure the unit is positioned at least 100 mm above Example: Behind the building. the maximum expected level of snow. -
Page 11: Preparing Electrical Wiring
6 Installation Preparing electrical wiring Opening the unit 5.4.1 About preparing electrical wiring 6.2.1 About opening the unit At certain times, you have to open the unit. Example: INFORMATION ▪ When connecting the refrigerant piping Also read the precautions and requirements in the "General safety precautions"... -
Page 12: To Install The Outdoor Unit
6 Installation Fix the unit securely by means of foundation bolts in accordance with the foundation drawing. Prepare 4 sets of M8 or M10 anchor bolts, nuts and washers (field supply). NOTICE If the unit is installed in a cold climate, take adequate measures so that the evacuated condensate CANNOT freeze. -
Page 13: Precautions When Connecting The Refrigerant Piping
6 Installation ▪ Connecting the refrigerant piping to the indoor unit INFORMATION ▪ Connecting the refrigerant piping to the outdoor unit Do NOT open the refrigerant stop valve before checking the refrigerant piping. When you need to charge additional ▪ Insulating the refrigerant piping refrigerant it is recommended to open the refrigerant stop ▪... -
Page 14: Using The Stop Valve And Service Port
6 Installation Torque wrench ▪ When it is expected that the operating pressure will be low (e.g. when cooling will be performed while the outside air temperature is low), sufficiently seal the flare nut in the stop valve on the gas Cut exactly at right angles. -
Page 15: Checking The Refrigerant Piping
6 Installation 6.5.3 To check for leaks NOTICE Do NOT exceed the unit's maximum working pressure (see "PS High" on the unit name plate). Liquid stop valve NOTICE Gas stop valve Service port Make sure to use a recommended bubble test solution 2 Connect the gas refrigerant connection from the indoor unit to from your wholesaler. -
Page 16: Charging Refrigerant
6 Installation ▪ Check for leaks again. 3 Filling in the fluorinated greenhouse gases label, and fixing it to ▪ Perform vacuum drying again. the inside of the outdoor unit. NOTICE 6.6.2 About the refrigerant Make sure to open the stop valves after installing the This product contains fluorinated greenhouse gases. -
Page 17: To Determine The Complete Recharge Amount
6 Installation 6.6.5 To determine the complete recharge Connecting the electrical wiring amount 6.7.1 About connecting the electrical wiring INFORMATION Before connecting the electrical wiring If a complete recharge is necessary, the total refrigerant charge is: the factory refrigerant charge (see unit name Make sure: plate) + the determined additional amount. -
Page 18: Guidelines When Connecting The Electrical Wiring
6 Installation Tightening torques DANGER: RISK OF ELECTROCUTION Disconnect the power supply for more than 10 minutes, Item Tightening torque (N•m) and measure the voltage at the terminals of main circuit M4 (X1M) 1.5~1.6 capacitors or electrical components before servicing. The M4 (earth) 1.4~1.5 voltage MUST be less than 50 V DC before you can touch... -
Page 19: Finishing The Outdoor Unit Installation
7 Commissioning About the compressor DANGER: RISK OF EXPLOSION ▪ Use a pipe cutter to remove the compressor. ▪ Do NOT use the brazing torch. ▪ Use approved refrigerants and lubricants only. DANGER: RISK OF BURNING Do NOT touch the compressor with bare hands. 3×... -
Page 20: Checklist During Commissioning
8 Configuration There are NO refrigerant leaks. Configuration The refrigerant pipes (gas and liquid) are thermally Facility setting insulated. The correct pipe size is installed and the pipes are Use this function for cooling at low outdoor temperature. This properly insulated. function is designed for facilities such as equipment of computer The stop valves (gas and liquid) on the outdoor unit are rooms. -
Page 21: Overview: Maintenance And Service
11 Troubleshooting NOTICE 11.2 Precautions when troubleshooting In Europe, the greenhouse gas emissions of the total WARNING refrigerant charge in the system (expressed as tonnes CO equivalent) is used to determine the maintenance intervals. ▪ When carrying out an inspection on the switch box of Follow the applicable legislation. -
Page 22: Symptom: Unit Does Not Function Or Burn Damage
12 Disposal 11.3.5 Symptom: Unit does NOT function or burn DANGER: RISK OF EXPLOSION damage Pump down – Refrigerant leakage. If you want to pump down the system, and there is a leak in the refrigerant Possible causes Corrective action circuit: The wiring was NOT performed Correct the wiring. -
Page 23: To Start/Stop Forced Cooling Using The Indoor Unit User Interface
12 Disposal 12.3.2 To start/stop forced cooling using the indoor unit user interface 1 Set the operation mode to cooling. For the procedure, refer to "To perform a test run" in the installation manual of the indoor unit. Note: Forced cooling will stop automatically after around 30 minutes. 2 To stop operation sooner, press the ON/OFF switch. -
Page 24: 13 Technical Data
13 Technical data Technical data A subset of the latest technical data is available on the regional Daikin website (publicly accessible). The full set of latest technical data is available on the Daikin extranet (authentication required). 13.1 Wiring diagram Unified Wiring Diagram Legend For applied parts and numbering, refer to the wiring diagram on the unit. -
Page 25: 14 Glossary
Optional equipment Equipment made or approved by Daikin that can be combined with the product according to the instructions in the accompanying documentation. Field supply Equipment NOT made by Daikin that can be combined with product according instructions accompanying documentation. - Page 28 4P518023-5C 2018.09...
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