Installation Guide - GDM (Heat Transfer) Ltd - #1

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MOUNTING Location The position of installation should not upset normal ventilation and comfort of personnel. Noise levels should remain within the local health and safety regulations. Ensure the free flow of cooling air and take care to avoid recirculation. CAUTION—SAFETY: Do not remove fan guard whilst motors are connected to power supply. Mounting in close rooms In closed rooms sufficient ventilation must exist to prevent excessive room temperature. It may be Necessary to install extractor fans and ducts to provide adequate ventilation. Mounting in the open air Installation in the open air may result in high efficiency for cooler installations. Low ambient temperatures increase oil viscosity, which may cause excessive pressures, therefore a by-pass valve should be provided or alternatively, an additional oil heating system with pumped circulation may be installed. Electric motors must be protected against the weather. Mounting in dirty areas Mounting in heavily polluted ambient air will result in dirt deposits on the cooling surfaces causing reduced cooling efficiency. Therefore in dusty or oily environments, regular cleaning should be provided (see maintenance). Manner of mounting The mounting is usually with the radiator vertical by means of feet or similar. If the radiator must lie Horizontal arrange fan underneath blowing up so debris can fall away when fan stops. INSTALLATION General GDM air blown cooler installations are usually installed in the return flow of the fluid circulation system. (A separate Off-Line cooler/pump circulation system may also be used see Pump Range). Preferably the fluid should enter the cooler at the lowest connection. For smaller sizes where 2 pass radiators are fitted, the 2 radiators should be connected in series always entering the radiator at the lowest connection. Supply and exit pipes should be connected to the cooler installation so as to be free from strain or vibrations. In order to diminish possible transference of vibrations, especially in mobile installations, vibration damping mountings should be supplied and the connections made with flexible pipes. To avoid undue strain on the cooler connections, support any flats with a spanner when tightening the flexible fittings. Impact pressures or intermittent pressure surges must not exceed the permissible maximum pressure. Maximum working pressures Refer To Cooler Data Sheet Keep well below the stated limits if there are cycle variations, or frequent fluctuations of pressure in the cooler line, as often found on presses and other rapid cycling systems. (see also precautionary measures). Mounting of coolers with shaft or pulley driven fan On GDM coolers fitted with shaft or pulley drive, the Direction of rotation must conform with the arrow of direction on the cooler installation. Installation and Operating Recommendations For GDM—Air Blown Coolers G.D.M. (Heat Transfer) Limited Boston Industrial Estate Tel: +44 (0)1889 574880 Power Station Road Fax: +44 (0)1889 575074 RUGELEY Email: info@gdmcoolers.co.uk Staffordshire WS15 2HS Website: www.gdmcoolers.co.uk G.D.M. (Heat Transfer) Limited Boston Industrial Estate Tel: +44 (0)1889 574880 Power Station Road Fax: +44 (0)1889 575074 RUGELEY Email: info@gdmcoolers.co.uk Staffordshire WS15 2HS Website: www.gdmcoolers.co.uk