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Keyfrost Environmental Sensitivity
European regulation 517/2014 establishes the rules relating to the marketing of HFC-containing equipment and products. One-piece refrigerant machines fall under item 12 and may use refrigerant gases with GWP less than 2500. Keyfrost produces ranges of monoblocks that use different refrigerants including R449A, R290, R455A etc.
Given the increasingly stringent regulations and the technological availability, Keyfrost wanted to develop and support, above all, the expansion of the monoblock range using R455A refrigerant. Where possible it is therefore recommended to use monoblocks at R455A and/or R290. R455A machines have a 90% lower environmental impact, due to the refrigerant charge, in terms of CO2eq.

Keyfrost Environmental Sensitivity
European regulation 517/2014 establishes the rules relating to the marketing of HFC-containing equipment and products. One-piece refrigerant machines fall under item 12 and may use refrigerant gases with GWP less than 2500. Keyfrost produces ranges of monoblocks that use different refrigerants including R449A, R290, R455A etc.
Given the increasingly stringent regulations and the technological availability, Keyfrost wanted to develop and support, above all, the expansion of the monoblock range using R455A refrigerant. Where possible it is therefore recommended to use monoblocks at R455A and/or R290. R455A machines have a 90% lower environmental impact, due to the refrigerant charge, in terms of CO2eq.

Destinations of use, intended and unintended use
Keyfrost refrigeration equipment is agri-food machinery (MACHINE DIRECTIVE 2006/42/EC), intended for treatment
of food products.
The machine is intended for the preservation of “fresh“ foodstuffs and/or products at the temperatures indicated in the annexes.
It was designed to be able to work at room temperature from +16°C to +43°C (class T).
It was designed to maintain a certain temperature in a cold room designed for such use.
The machine is not intended to be installed and used in cells located outside.
The machine is not intended to be installed and used in an atmosphere at risk of explosion.
Any use outside the permitted ones is considered “improper use“ and therefore the manufacturer disclaims any responsibility for it.
The unit is not intended to be used for the storage of products that develop corrosive substances.

• hermetic compressors
• air or water condensation
• thermostatic valve or capillary tube coolant expansion
• evaporation of defrost water via evaporation basin with anti-corrosion hot gas pipe
• control of the refrigeration system via electronic control unit
• light cell lighting
• door resistance connection cable (BT versions)
• fixed calibration high pressure switch and manual reset (on models: see attachments)
• low pressure switch (on models: see attachments)
• On/Off condensation control via calibratable probes
• provision for microport
• exterior body made of galvanized steel sheet, epoxy powder painted at 200°C
• interior body in satin magnesium aluminum
• manual cell light switch
• manual switch on/off system
• electric motors protected by thermistors
• connection port to MODBUS systems for management control and HACCP

KBA R290 NE-WL 50Hz

Model Power supply Capacity Watt Volume A
m³		 Volume B
m³		 Technical sheet
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KBA 08 NE-WL 230/1/50 832  6,4 4,8
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KBA 09 NE-WL 230/1/50 975  8,7 6,6
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KBA 10 NE-WL 230/1/50 975 8,7 6,6
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KBA 12 NE-WL 230/1/50 1506  15,2  11,5
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KBA 13 NE-WL 230/1/50 1506  15,2 11,5
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KBA 15 NE-WL 230/1/50 1664  17,0 12,9
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KBA 28 NE-WL 230/1/50 3036  46,7  35,8
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KBA 42 NE-WL 230/1/50 4554  82,3  63,8
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CAPACITY
Te=-10°C;Tcond=+40°C

VOLUME
Vol. A = Cell insulation: All surfaces
Vol. B = Cell insulation: All walls except floor(volume calculation conditions)
Cell TemperaturE = 0 °C
Temperature Environment = 32°C
Temperature H2O= 23 °C

KBA R290 BE-WL 50Hz

Model Power supply Resa W* Volume A
m³		 Volume B
m³		 Technical sheet
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KBA 08 BE-WL 230/1/50 758 5,3 –
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KBA 10 BE-WL 230/1/50 947 9,3 –
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KBA 11 BE-WL 230/1/50 947 9,3 –
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KBA 12 BE-WL 230/1/50 1079 11,2 –
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KBA 13 BE-WL 230/1/50 1079 12,2 –
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KBA 21 BE-WL 230/1/50 2159 32,7 –
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KBA 31 BE-WL 230/1/50 3238 57,3 –
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CAPACITY
Te=-30°C;Tcond=+40°C

VOLUME
Vol. A = Cell insulation: All surfaces
Vol. B = Cell insulation: All walls except floor (volume calculation conditions)
Cell Temperature = -20 °C
Environment Temperature= 32°C
H2O Temperature = 23 °C