Standard fixed speed compressors on chillers use a hot gas bypass valve that bypasses hot discharge refrigerant gas back into the compressor to simulate 100% load. This keeps the compressor running at full speed at all times regardless of the actual load. As an example, this means that if you have a 10 TON chiller and have 10 machines that each require 1 TON of chilling, or 2 machines that require 5 TONs each, you will be running your chiller at 100% capacity, regardless of whether you have 8 of your 10 machines running (80% load) or 1 of your 2 machines running (50%) load. With this example, the chiller will be costing you a fixed amount on your energy bill regardless of how many of your machines are running.
Thermal Care introduced the first portable chillers with a variable speed compressor on their 10 TON and 20 TON portable chillers. It allows the compressor to reduce the actual output from 100% down to 30% by reducing the speed of the compressor while utilizing hot gas bypass to bring the load from 30% all the way down to 0% without shutting off the compressor. As shown in the graph below, the energy savings often result in less than a 1 year return on investment.
- Touch Screen PLC with full diagnostics
- Totally enclosed, air-over (TEAO) low-noise, energy-efficient fan(s)
- Removable tools-free access door
- Power 3-phase error alarm
- Warranty – lifetime controller replacement ($175 after 5 years)
How do you calculator your cooling your process requirement?
Click the link below for a simple calculator to get a good estimate on your cooling tonnage.
Want to estimate your annual energy savings (above 50 TONs)?
Hirate America partners with Thermal Care, one of the best process cooling equipment and systems for removing heat from industrial applications.
If you have a project that you would like to discuss, feel free to contact us below to schedule a free consultation.