Daikin VRV Repairs (variable refrigerant volume)

Daikin VRV Repairs (variable refrigerant volume)

Job Description: VRV Repairs (variable refrigerant volume)

Area: Charles II Street, London

Issue Identified:  Following a recent call out at the site for an F3 fault. An investigation the engineer advised that the temperature in the oil separator was very high and there seems to be a lack of oil flow to the system.

Works carried out:

  • Isolated the VRV unit electrically and mechanically.
  • Recovered 13kg R410a refrigerant into a dedicated recovery cylinder.
  • Pressure tested with OFN (oxygen free nitrogen)
  • Leak found on the discharge line flare connection
  • The leak was resolved by means of tightening
  • Once proved released Oxygen Free Nitrogen (OFN) into atmosphere and evacuated the system to a minimum of 2 Torr.
  • Re-charged with the recovered refrigerant and trim charged with virgin refrigerant up to 20.7kg.
  • Test ran and re-commissioned.
  • Completed a waste transfer note and handed to on-site representative.
  • Completed an F Gas certificate.

Daikin VRV Units

ACES engineers specialise in service and maintenance of Daikin VRV Systems including VRV IV + Heat recovery, VRV IV + Heat pump, VRV 5 S-series, Water-cooled VRV + series.

Heat recovery systems allow simultaneous heating and cooling. This is ideal for hotels so that visitors can control their own comfort and is also effective for buildings with north and south facing offices.

We have engineers based in London 24/7 who are available for all emergencies.

Some of the many Daikin VRV Units we support
  • RYMQ-U
  • RYYQ-U
  • RXYSA-AY1
  • RWEYQ-T8
  • RXYQ-U
  • RXYQ-T8
  • RQYQ-P
  • RWEYQ-T
  • REMQ-U
  • REYQ-U
  • RXYSA-AV1
Abbreviations

HVAC – Heating, Ventiliation and Air Conditioning, PLT – Pressure Leak Test,  PRV – Pressure Relief Valve, PPM – Planned Preventative Maintenance, OFN – Oxygen Free Nitrogen, AHU – Air Handling Unit, GWP – Global Warming Potential, VRF – Variable Refrigerant Flow, VRV – Variable Refrigerant Volume, ACU – Air Conditioning Unit, FCU – Fan Coil Unit, AC – Air Conditioning,  HP – High Pressure, LP – Low Pressure

Ref: 1730