Helpman THOR
The Helpman THOR series is a wide and flexible range of heavy-duty industrial air coolers for both cooling and freezing applications in medium to large cold rooms. Suitable for a wide range of applications, with a special focus on meat storage, agricultural produce and packed products. All THOR models have been highly standardised in construction and dimensions, while maintaining flexibility in fin spacings, coil construction and circuiting design.
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Refrigeration
Data Center Cooling
Technical features
- Main applications
The Helpman THOR series is a wide and flexible range of heavy-duty industrial air coolers for both cooling and freezing applications in medium to large cold rooms - Refrigerant
HFC, CO2 and Brine - Capacity range
5 up to 123 kW**higher capacities on request
- Air volume
4,000 up to 68,000 m3/h - Evaporating temperature
+ 5 to -40 °C - Design pressure
6 up to 33 bar - Fan-motors
1-7 fans, available in a range of different executions - Fan diameters
Ø 410 up to 710 mm
- Refrigerant
- HFC, CO2 and Brine
- Capacity range
- 5 up to 123 kW*
*higher capacities on request
- Air volume
- 4,000 up to 68,000 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 (modules 1-4). Larger modules fitted with easily removable end covers.
- Hinged drain tray, 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.
- 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 on wooden beams.
Installation can take place with use of a forklift.
Fan-Motors
- 1-7 fans, available in a range of different executions.
- Diameters Ø 406 mm up to Ø 710 mm.
- Enclosed design spray-tight fan motors, protection class IP55.
- Motors are equipped with a thermal safety device in the windings, connected to separate terminals in the box.
- All models available in both blow-through (THOR-B) and draw-through (THOR-Z) execution.
Options
- Defrost systems:
- Hot gas coil in drain tray (G1, G2)
- Hot gas connected (G1C, G2C)
- Hot gas coil in drain tray connected to suction header, without non-return valve
- Water defrost (W)
- Hot glycol defrost (HW1, HW2)
- Electric defrost (E1, E2, E4, E5)
For air coolers with pumped refrigerant circulation or in glycol execution on special request only
- Fan ring heater (FRH)
- Stainless steel 304 casing (SSC)
- Secondary refrigerant
All models available for brine application.
Standard connections Cu soldering, other connections (thread/flange) on request. - Drain tray 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)
- Mounting feet (MF)
For floor mounting, THOR coolers can be equipped with hot dip galvanized steel mounting feet. - Isolating switch, mounted (ISM)
- Shut up® system (S+SH)
For THOR-Z only. The system comprises a shut-up sock and an inlet hood to enhance defrost efficiency. - Diffuser + defrost damper (D, DO)
Discharge diffuser (D) to increase air throw, can also be fitted with a defrost damper valve (O) that closes automatically when the fans are stopped (THOR-B only). - Hinged fan plate (HN)
Design pressure
- Design pressure 33 bar (HFC) 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
- 7 coil block modules.
- 6 or 8 tube rows deep.
- Cu ripple fin tubing ø 5/8” (smooth tubing for brine)
- Tube pitch 50×50 mm square
- Corrugated Alu-fins
- Fin spacings 4, 6, 7, 8, 10 and 12 mm.
Certifications
- The LU-VE quality system is in accordance with ISO 9001. All products are manufactured according to PED regulations.