STANDARDFRIGOR Snowkeeper SK 12
The Snowkeeper SK 12 snow cooling unit is used in snow regions as a means of maintaining the snow for longer. Cooling coils anchored in the ground cool the snow and keep it below thawing temperature. The unit can be conveniently transported using a snow groomer and is designed for harsh environmental conditions. When developing the Snowkeeper SK 12, FrigorTec consulted with the Federal Institute for Snow and Avalanche Research (Davos, Switzerland) on snow-related matters.
Fields of application
- Maintaining snow allows for less-frequent snowmaking on artificial snow areas
- Greater snow reliability in thaw regions increases cost effectiveness and protects the environment
- By cooling ski jumps, they can even be used at thawing temperatures
Product overview
STANDARDFRIGORSnowkeeper SK 12
- Less-frequent snowmaking on artificial snow areas, therefore resulting in water savings
- Snow reliability in thaw regions leading to increased cost effectiveness and greater environmental protection
- Easy to transport with a snow groomer
- Designed for harsh ambient conditions
- Ideal for cooling ski jumps too
- Developed in collaboration with the Federal Institute for Snow and Avalanche Research (Davos, Switzerland)
STANDARDFRIGOR | Snowkeeper SK 12 |
|---|---|
| Cooling performance | 12 kW |
| Power consumption of compressor (design point) | 9 kW |
| Antifrogen N (brine 40%) temperature on/off | -11.4 °C / -18 °C |
| Consumer pump (3 units, info for 1 pump) | |
| Power consumption | 1.1 kW |
| Throughput (design point) | 1,7 m³/h |
| Pump pressure (design point) | 5.0 bar |
| Consumer pump (1 unit) | |
| Power consumption | 2.3 kW |
| Switch type | direct |
| ELECTRICAL DATA | |
| Power consumptio | 15 kW |
| Starting current | 69 A |
| Max. operating current | 30 A |
| Recommended fuse | 35 A |
| Min. protection class | IP 54 |
| Additional contacts/terminals | 1 terminal pair 220 V (coupled with pumps) 1 isolated terminal (dry-run protection) |
| Hydraulic connection data | |
| Flow connection (inner thread) | 3 x R1“ |
| Return connection (inner thread) | 1 x R1 1/4“ |
| Colour | RAL 7032 (slate grey) |
| Noise emissions (with new filters) | 83 dB(A) |
| Operating weight | 700 kg |
| Empty weight (ready for operation without cooling medium) | 650 kg |
Technical features
- Electrically-driven compressor in a hermetic design
- Air-cooled liquefier
- Fan for condensation exhaust air, IP according to standard
- Control cabinet completely wired internally, with auxiliary and control contactors (power supply is connected on site)
- Safety equipment (e.g. pressure switch)
- Pump station includes all required system elements
Device protection and insulation
- Electrical parts (e.g. pressure switch and thermostat) with minimum IP 54 protection
- Armaflex insulation of the cold system parts to prevent heat loss and water condensation, without sheet casing
Commissioning
- Startup included (1 day, including journey to and from the site of up to 150 km)
- Two copies of the operating instructions provided (German, according to Axima standard)
- Cooling coils are anchored into the ground and snow using pegs
- Cooling unit requires a warm-up time of 24 hours prior to commissioning
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