Cheetah - Energy Control
Cheetah saves energy by controlling the extract and air supply fans in line with demand. Energy savings of up to 80% are typically achieved. The extraction of waste heat, odours, fumes and combustion products in commercial catering constitutes a major demand for energy.
This energy demand is increased further with large...
This energy demand is increased further with large quantities of conditioned air being lost to the atmosphere and replaced unnecessarily by inefficient ventilation systems.
Cheetah is equally at home as either a retrofit or new build solution and works by controlling ventilation fan speeds such that extract rates are matched with cooking demands, hence optimising energy use.
The patented Cheetah system works on the principle of the “Affinity Laws for Centrifugal Loads”, the result of which is that a fan running at 40% of its normal operating speed, will only consume 6% of the energy required to run the fan at 100% of its operating capacity.
Variable speed drives are mandatory for the control of larger extract fans (Building Regulations Parts F & L). In commercial catering zones Cheetah controls these drives effectively and efficiently to safely minimise energy usage.
“Cheetah saves energy by controlling the extract and air supply fans in line with demand. Energy savings of up to 80% are typically achieved.”
How Cheetah works
How Cheetah works
Cheetah consists of a number of intelligent modules which are interconnected by a data communications network. A typical configuration is shown above.
The standard modules are:
- Display processor with system power supply and override facility
- Sensor processor
- Data logger with GPRS remote access system
- Temperature sensors (located in ducting)
- Optic sensors detecting smoke and steam (located in extract hood)
- Air flow meters in ducts (optional)
- Carbon dioxide sensors (optional)
With Cheetah operating in normal mode, the system’s sensors control the fans. The fans are set to a minimum speed by default but automatically increase in the event of smoke, high temperatures in ducts, low air flow in ducts and high levels of carbon dioxide, in the kitchen.
“Cheetah is the leading demand based ventilation control system in the UK for commercial kitchens “
Summary of benefits
Energy savings
Cheetah saves energy by controlling the extract and air supply fans. Typically, fan speeds are reduced to 40% of their normal operating speed when activity levels in the kitchen are low. At this speed the energy consumption is only 6% of that with the fans running at 100% of their operating capacity. Significant further energy is saved by the resulting fall in demand for conditioned air supply.
Remote monitoring
Maintaining the extract system in good condition
Fire safety
Downloads related to this software
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