Replace Dual Port Valve on a Trane Chiller
Job Description: Replace Dual Port Valve on a Trane Chiller
Area: One New Change London
Issue Identified: Following a recent planned preventative maintenance visit our engineer found a leaking dual-port, therefore a pressure test was required and a new dual-port to be fitted.
Works carried out:
- Isolated the Trane Chiller unit electrically and mechanically.
- Recovered remaining refrigerant.
- Weighed and confirmed the charge.
- Replaced the Dual-Port Valve.
- Re-charged with nitrogen and confirmed leak tight.
- Once proved release OFN to the atmosphere and evacuated the system to a minimum of 2 Torr.
- Re-charged with recovered refrigerant and trim charged with virgin refrigerant.
- Test ran and commissioned.
- Completed waste transfer note and handed to an on-site representative.
- Completed F Gas certificate.

ACES Group Can Also Supply and Install New Chillers – Call Us On 01865 890996
ACES service and maintain Trane Chillers. Trane Chillers are used for a variety of applications including process cooling where tough demands are placed on all types of temperature conditions, strict control and constancy.

Some of the many Trane Chillers we support
- Flex II chiller
- Conquest chiller CGAX
- TraneCube CGB chiller
- AquaStream 3G chiller CGAM
- City RTSF G chiller
- CGWN/CCUN Chiller
- RTHD evo chiller Series R
- RTWD/RTUD chiller
- XStream RTWF chiller
- XStream RTHF chiller
- eCTV CenTraVac centrifugal chiller CVHH/CDHH
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