How spot cooling increases your team’s output
Maurice van der Kooij
- 6 min read
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Master BC 221 – evaporative cooler
Portable air coolers
Cool your factory, hangar or workshop for less. Our portable evaporative coolers offer a cost-effective alternative to traditional air-conditioning and create a comfortable working environment for your employees or customers.
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Key features
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Efficient and durable spot cooler for industrial applications
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Quiet running even with large air-flow
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Automatic swing function as standard
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Large water tank for longer operating hours
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Large, durable wheels with brakes allow easy movement
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Connect water hose or refill tank manually to offer comfort to your employees
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Corrosion-resistant plastic casing
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Air filter included to enable easy maintenance
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Remote control to easily adjust speed
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UV lamp, disinfecting the water
Benefits of evaporative cooling
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The use of Master air coolers strongly reduces the CO₂ impact compared to air-conditioners
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Clean air that reduces the risk of bacteria and virus
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No chemicals or refrigerants
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Low energy consumption
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Virtually maintenance-free equipment
How does it work
The heart of the evaporative cooling system is the cooling pad where the water evaporates and the air passing through the pads is cooled. Evaporative cooling pads are manufactured from fluted cellulose sheets that are glued together. The material is chemically impregnated with special compounds to prevent rot and ensure a long service life and easy maintenance.
Evaporative cooling and humidity
A given volume of air at a certain temperature and pressure is capable of absorbing and holding a certain amount of water vapour. If that volume of air contains 50% of the moisture it is capable of holding, we say it is at 50% relative humidity.
The hotter the day, the drier the air, the more cooling can be done by means of evaporation. In other words, the cooling effect is best when you need it most.
Our evaporative coolers are developed to work well in high-humidity environments too, however, and will remain much more efficient than a simple fan that just circulates warm air.
Our coolers will increase humidity by 2 to 5%, depending on temperature and humidity in the environment you want to cool. The slight increase is not noticeable in ventilated areas where the air produced by the unit is exhausted.
Product specifications
Cooling pad
120
dm³
Air flow
22,000
m³/h
Loaded air flow
15,000
m³/h
Maximum area
330
m²
Power consumption
800
W
Power supply
220-240/1ph/50
V/Hz
Rated current
3.7
A
Water consumption
12-18
l/h
Tank capacity
120
l
Direct water connection
½
inch
Sound level
67
dB(A)
Product size (l x w x h)
1230 x 640 x 1730
mm
Box size (l x w x h)
1300 x 720 x 1930
mm
Net/gross weight
64/69
kg
Pallet
1
pcs
Our tools
Master 3-year limited warranty
Register your Master product here to take advantage of the benefits of the 3-year limited warranty.
Master Climate Solutions app
Use the Master Climate solutions app to calculate power and get recommended heating, cooling, drying or ventilation products for your work area.
Accessories and consumables
Useful downloads
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Featured insights
Why we recommend evaporative air cooling
Maurice van der Kooij
- 4 min read
Both evaporative coolers and air-conditioners are effective ways at keeping indoor conditions cool. Discover the difference between each solution, and which is best for your environment.
Maurice van der Kooij
- 6 min read
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