A rmstrong Design Envelope pumps were selected to retrofit this 80,000 m2 office

and hotel complex. Because the hvac system is required 24/7 to support hotel operations, ease of installation and minimal labour were important considerations. Armstrong upgraded the existing equipment with 10 Design Envelope 4300 pumps and an ipc 9521 controller.

case study | Wei Lai Mansion

annual energy cost co2 emissions

before beforeafter after

average averageaverage

rmb rmb

average

283,647298,030 104,626 71,195

before before before

70,500

70,500

£31,000

45,005

45,005

£22,000

average averageaverage

after afterafter

average averageaverage

annual kwh usage annual energy cost co2 emissions

armstrongfluidtechnology.com /energyperformanceseries

name St James Hospital

facility type Healthcare

location Leeds, Yorkshire UK

before before before

70,500

70,500

£31,000

45,005

45,005

£22,000

average averageaverage

after afterafter

average averageaverage

annual kwh usage annual energy cost co2 emissions

armstrongfluidtechnology.com /energyperformanceseries

name St James Hospital

facility type Healthcare

location Leeds, Yorkshire UK

facility type Hotel and office complex

size 80,000 m2

location Zhengzhou,China

site challenges• Low tolerance for noise

and vibration• 24/7 hotel operations

demanded fast installation and commissioning for minimal system downtime

Armstrong solutions reduced energy usage by 75%. These energy savings reduced the payback period for the retrofit project to less than two years.

kg co2 kg co2

Energy Upgrade Series

Case study: Wei Lai Mansion

75%annual energy savings

a r m s t r o n g f lu i d t ec h n o lo g y. co m

rmb

t o g e t yo u r e n e rgy u p g r a d e proj ec t s ta r t e d, c a ll :

annual cost savings annual c02 emission reduction

193,404 212,452 kg CO2

+1 866 238 1337

bureau veritas

verified

Site 80,000 m2 office and hotel specification constructed in 1997

Equipment 10 × Design Envelope Vertical included In-Line 4300 pump with Suction Guide and Flo-Trex valve

key outcomes:

Bureau Veritas reviewed the energy usage data and certified the efficiency improvement of 75%

The cost savings will be rmb 193,404 per year (approx $28,000 usd)

file no.: 9.566 date: october 2019 supersedes: 9.566 date: august 2019

Bureau Veritas S. A. is an international certification

agency appointed by Armstrong to provide a

technical assessment of pump performanceand energy usage.

A rmstrong maps each individual pump’s hydraulic, motor and inverter variations at the factory to achieve exceptional accuracy

throughout the flow range. With this calibration, Armstrong Design Envelope pumps also serve as

flow meters, providing reliable system flow data (+/- 5%). The testing ensures optimal performance efficiency at start-up, while Armstrong’s Pump Manager helps maintain and extend efficiency throughout the pump’s operating life.

vertical in-line pump

ipc 9511

solutions employed