Helpman TYR-T
Industrial shock coolers Helpman TYR-T have been specifically designed for application in cooling and freezing tunnels. Shockcooling is a process by which a product, mostly meat, is cooled quickly but not too deeply. The principle of shock-cooling is that the surface of the meat product is cooled until just below the freezing point, so that the surface becomes vapour-tight.
This has the purpose of limiting the weight (moisture) loss of the product to a minimum. The product may not be cooled too deeply however, since otherwise the structure of the underlying tissue is damaged, resulting in a decline of the quality of the meat. For shock-coolers, it is important that the total surface of the product that is to be cooled be fully exposed to the cold air flowing from the cooler. For this reason, all models are characterised by an elevated external pressure (120 Pa).
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Refrigeration
Technical features
- Main applications
Industrial shock coolers Helpman TYR-T have been specifically designed for application in cooling and freezing tunnels - Refrigerant
Ammonia (R-717), all HFO/HFC, CO2 and Brine - Capacities
11 up to 114 kW**Higher capacities on request
- Air volume
11,800 up to 66,400 m3/h - Evaporating temperature
+5 to -40 °C - Design pressure
6 up to 33 bar - Fan-motors
2, 4, 6 or 8 fans, blowing through the coil - Fan diameters
Ø 508 or 560 mm
- Refrigerant
- Ammonia (R-717), all HFO/HFC, CO2 and Brine
- Capacities
- 11 up to 114 kW*
*Higher capacities on request
- Air volume
- 11,800 up to 66,400 m3/h
- Evaporating temperature
- +5 to -40 °C
- Design pressure
- 6 up to 33 bar
Casing
- Corrosion resistant casing material: Aluminium/Sendzimir, white epoxy coated (RAL 9003).
- Hinged, enclosed end covers.
- Hinged driptray, drain(s) 32 mm PVC connection, freely adjustable into either horizontal or vertical position
- Refrigerant distribution optimised to refrigerant applied.
- Refrigerant connections on right hand side (fan side view).
- Fitted with schräder valve on the suction connection for testing purposes (not for R-717).
- Sufficient room for fitting the expansion valve inside.
- Suitable for dry expansion or pumped system.
- Stickers indicate fan direction and refrigerant in/out.
- Delivery in mounting position. Coolers are mounted on wooden beams. Installation can take place with use of a forklift.
Fan-Motors
- 2, 4, 6 or 8 fans, blowing through the coil.
- Diameters Ø 508 mm or Ø 560 mm.
- Enclosed design spraytight fan motors, protection class IP55.
- Motors are equipped with a thermal safety device in the windings, connected to separate terminals in the box.
- Fans with elevated external pressure (120 Pa).
Options
- Defrost systems
- Hot gas coil in driptray (G1, G2)
- Hot gas connected (G1C, G2C)
Hot gas coil in driptray connected to suction header, without non-return valve. - Water defrost (W)
- Electric defrost (E1, E2, E4)
Electric defrost for air coolers with pumped refrigerant circulation or in glycol execution on special request only.
- Driptray insulation
- Styropore 10 mm + cladding (I2)
Not combined with electric defrost - Foamglass 25 mm + cladding (I3)
- Styropore 10 mm + cladding (I2)
- Refrigerant connections (L/R) (fan side view)
- Isolating switch, mounted (ISM)
- Fan ring heater 230 V (FRH)
- Secondary refrigerant
All models available for brine application.
Standard stainless steel welding, other connections (thread/flange) on request. - Stainless steel 304 casing (SSC).
- Hinged fan plate (HN).
Design pressure
- Design pressure 33 bar (HFO/HFC), 27 bar (ammonia) or 6 bar (brine).
- Higher design pressures on request.
- Each heat exchanger is leak tested with dry air and finally supplied with a nitrogen pre-charge.
Coil
- 2 coil block modules.
- 4, 6 or 8 tube rows deep.
- Stainless steel tubing ø 16 mm.
- Tube pitch 50 x 50 mm square.
- Corrugated Alu-fins.
- Fin spacings 7 or 10 mm.