BUPA Aged Care
25.3% C.O.P. Improvement — measured on operating equipment. Results vary by system condition, design, age, maintenance and operating conditions.
Client Objective
Due to recent increases in site energy consumption and comfort related complaints from residents, upon investigation the customer was led to believe the AC units were operating unnecessarily hard and struggled to maintain comfort.
In order to avoid high replacement costs the customer wanted to try the Envirotemp AC Flush alternative.
Outcome & Benefits
The results confirm the Mitsubishi AC unit has lost significant performance which is evident by the 25.3% C.O.P. gain following treatment.
The unit is now able to provide 25.3% additional performance while using 10% less refrigeration capacity. This translates into available reserve capacity for use during periods of higher demand.
What was tested, and how
- Equipment
- Mitsubishi Electric VRF, model PURY-P400YJM-A
- Refrigerant
- R410a
- Initial condition
- Rising site energy consumption and resident comfort complaints; units judged to be working unnecessarily hard and struggling to hold set-point.
- Treatment
- Envirotemp AC Flush applied in place of equipment replacement.
- Testing conditions
- Before/after readings taken on a single stage of the unit in normal operating service, not the whole unit.
- Source / documentation
- Envirotemp field case study documentation
- Make
- Mitsubishi Electric
- Model
- PURY-P400YJM-A
- Refrigerant
- R410a
- Installation Cost
- $687
- Running Costs @ $0.225/kWh
- $1,872 → $1,398
- Payback Period
- 17.0 months
¹ Test conducted on a single stage, not the whole unit.
² Payback calculations based on 25% duty cycle, 24/7 operation.