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Low cost, low

26th January 1973
Page 29
Page 29, 26th January 1973 — Low cost, low
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Which of the following most accurately describes the problem?

ireight coolers by Paul Brockington

"ransport refrigeration units from a newcomer

The capacities of a range of .rigerating units, just introduced by a wcomer to the industry, Truck Cooler d, Anton Mill Road, Andover, Hants, are id to be intermediate between those of )dels made by competitors and to comply re closely with present-day operator pirements. The new units are of the chanical type, combine low weight and v cost and are designed by men with long perience in the transport refrigeration Id.

The company is currently concentrating the production of four models in its TA age, developed for medium-weight vans, at have heat extraction rates of 4750 u /hr, an internal temperature of —18deg at an ambient temperature of 38deg C up 11,500 Btu /hr at internal and ambient nperatures of 2deg C and 27deg C reectively. Having a total weight of 531 lb, a heaviest model (the TA2D) is said to be per cent" lighter than an equivalent )del produced by a particular competitor. ices vary from £705 to £866, the cost of a petrol tank being £25 extra.

A range of models for insulated vans with !dies up to 16ft long is also in production a limited scale. Called the D series, they e designed to maintain a temperature of Zdeg C and above in suitably insulated dywork when the vehicle is engaged on alti-drop deliveries.

Now in the pipeline, the TB type will be [lowed later by the TC, both of which ve a higher capacity than the TA model. le four ranges will cater for vehicles with igths up to the maximum allowed in the K and on the Continent.

Features common to all models in theTA nge include a Kohler 8 hp single-cylinder .-cooled four-stroke engine that can crate on petrol or propane gas, a in-cylinder compressor with resilient auntings, and a heavy-duty alternator. vin electrically driven evaporator fans able shaft drive to be dispensed with and ovide an air flow of 1200 cu ft/min. The

control box can be installed in any convenient position for operation by the driver from ground level. Torque from the engine is relayed to the belt-drive through a centrifugal clutch.

Models TA! and TA2 are rated for temperatures of 2deg C and above, the TA2 being equipped with mains operated electric motor drive in addition to the Kohler engine.

Designed for temperatures of 23deg C and above, the TA1D and TA2D incorporate an automatic defrosting device. Electric motor drive is fitted as an auxiliary to the TA2D and the compressors of the TA1D and TA2D are of a heavy-duty low-temperature type. Models in the D series, the D1 and D2, are equipped with electric clutch and are belt-driven from the engine, or coupled to a gearbox pto. Additionally, the D2 provides for standby refrigeration with the aid of electric motor drive and a control box. Prices vary from £325 to £480, the extra charge for a pto drive being £70.

Commenting on cooler type suitability, Mr R. E. Topple, the gm of the company, told me that in his opinion mechanical units had an advantage over other systems in that they could be used to heat the load as well as cool it, which was frequently necessary on trans-Continental runs in the winter carrying certain types of goods. And obtaining the fuel was no problem.