General information & application Helpman THOR-A industrial air coolers have been designed for airsock application. All models are fitted with an airsock ring and fan motors capable of supplying the additional external pressure that is required for the proper functioning of an airsock system. Suitable for applications like processing rooms, working production area’s and greenhouse cooling. All THOR models have been highly standardised in construction and dimensions, while maintaining flexibility in fin spacings, coil construction and circuiting design. Evaporating temp. +5 to -15 °C Refrigerants all H(C)FC, brine, CO2 Capacities (SC2) 4 up to 41 kW* Airsock diameter 450 up to 730 mm * Higher capacities on request Standard configuration • Finned coil - 4 coil block modules - 4 or 6 tube rows deep - Cu tubing ø 5/8” - Tube pitch 50 x 50 mm square - Corrugated Alu-fins - Fin spacings 4, 6 and 7 mm. • 1-3 Fans, available in a range of different executions. Airsock diameters Ø 450 up to Ø 730 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. High and low fan speed execution. - 1500 rpm (H design) - 1000 rpm (L design) • 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. • 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. Test Design pressure 33 bar, higher design pressures on request. Each heat exchanger is leak tested with dry air and finally supplied with a nitrogen pre-charge. Brine coolers are tested at 6 bar. THOR-A Industrial airsock air cooler THOR-A

How to contact Alfa Laval Up-to-date Alfa Laval contact details for all countries are always available on our website at www.alfalaval.com ERC00160EN 0802 Options • Defrost systems - Hot gas coil in driptray (G1) - Electric defrost (E1, E4) Electric defrost for air coolers with pumped refrigerant circulation or in glycol execution on special request only. • Driptray insulation - Armaflex (or alike) 10 mm ( I 1) - Styropore 10 mm + cladding ( I 2) - Foamglass 25 mm + cladding ( I 3) - Purane + polyesther cladding ( I 4) I1, I2 & I4 driptray insulation not in combination with electric defrost....