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Summary of Contents for Daikin RXA42A2V1B
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Page 1: Installation Manual
Installation manual R32 split series Installation manual RXA42A2V1B English R32 split series RXA50A2V1B... - Page 2 2P427092-14M...
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Page 4: Table Of Contents
About the refrigerant ........... Daikin website (publicly accessible). 4.4.3 To determine the additional refrigerant amount ..▪ The full set of latest technical data is available on the Daikin 4.4.4 To determine the complete recharge amount ..... extranet (authentication required). -
Page 5: Preparation
3 Preparation Preparation Preparing the installation site CAUTION ▪ Check if the installation location can support the unit's weight. Poor installation is hazardous. It can also cause vibrations or unusual operating noise. ▪ Provide sufficient service space. ▪ Do NOT install the unit so that it is in contact with a ceiling or a wall, as this may cause vibrations. -
Page 6: Preparing Refrigerant Piping
4 Installation Preparing refrigerant piping 3.2.1 Refrigerant piping requirements ▪ Piping material: Phosphoric acid deoxidised seamless copper. ▪ Piping diameter: Liquid piping Ø6.4 mm (1/4") Gas piping Ø12.7 mm (1/2") ▪ Piping temper grade and thickness: Outer diameter Temper grade Thickness (t) (Ø) Ø... -
Page 7: To Install The Outdoor Unit
4 Installation 2 Use a Ø16 mm hose (field supply). Drain port Bottom frame Drain plug Hose (field supply) 4.1.4 To prevent the outdoor unit from falling over In case the unit is installed in places where strong wind can tilt the unit, take following measure: 1 Prepare 2 cables as indicated in the following illustration (field supply). -
Page 8: To Connect The Refrigerant Piping To The Outdoor Unit
4 Installation Stem cap 2 Check for leaks by applying the bubble test solution to all connections. Item Tightening torque (N∙m) 3 Discharge all nitrogen gas. Stem cap, liquid side 21.6~28.4 Stem cap, gas side 48.1~59.8 4.3.2 To perform vacuum drying Item Tightening torque (N∙m) DANGER: RISK OF EXPLOSION... -
Page 9: About The Refrigerant
4 Installation Completely recharging refrigerant If the total liquid Then… piping length is… Before completely recharging refrigerant, make sure the following is done: >10 m R=(total length (m) of liquid piping – 1 0 m)×0.020 1 All refrigerant is recovered from the system. R=Additional charge (kg)(rounded in units 2 The outdoor unit's external refrigerant piping is checked (leak of 0.1 kg) -
Page 10: Connecting The Electrical Wiring
4 Installation S90 – thermistor lead wire Connecting the electrical wiring S70 – fan motor lead wire DANGER: RISK OF ELECTROCUTION 4.5.1 Guidelines when connecting the electrical wiring WARNING ▪ All wiring MUST be performed by an authorised Tightening torques electrician and MUST comply with the applicable legislation. -
Page 11: About The Compressor
5 Commissioning The indoor unit receives the signals of the user interface. The specified wires are used for the interconnection cable. Gas pipe Checklist during commissioning Gas pipe insulation Interconnection cable To perform an air purge. Liquid pipe Liquid pipe insulation Finishing tape To perform a test run. -
Page 12: Troubleshooting
7 Troubleshooting INFORMATION DANGER: RISK OF EXPLOSION ▪ The indoor unit may produce Intermittent noise due to Pump down – Refrigerant leakage. If you want to pump the outdoor unit fan turning ON and/or OFF. down the system, and there is a leakage in the refrigerant circuit: ▪... - Page 13 8 Disposal 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. INFORMATION If forced cooling is used and the outside temperature is < −10°C, the safety device may prevent operation.
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Page 14: Technical Data
9 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). Wiring diagram Unified Wiring Diagram Legend For applied parts and numbering refer to the wiring diagram sticker supplied on the unit. -
Page 15: Piping Diagram
9 Technical data Piping diagram 9.2.1 Piping diagram: Outdoor unit Refrigerant flow Heat exchanger Cooling Outdoor air temperature thermistor ·7.9· CuT ·7.9· CuT Heating ·7.9· CuT ·7.9· CuT ·7.9· CuT Capillary tube ·7.9· CuT ·7.9· CuT ·4.0· CuT ·7.9· CuT ·7.9·... - Page 16 3P517827-2 2017.12...
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