38000
2Pages

Catalog excerpts

TEDDINGTON APPLIANCE CONTROLS LTD 38000 MINIATURE PRESSURE CONTROL ? Small ? Adjustable Range with Scale ? Dual psi/bar Scales ? SPDT 15A Switch ? TAB Terminals for Easy Fitting ? Alternative Pressure Connections ? Mounting Bracket Provided Application These miniaturised controls are designed for use with compact refrigeration plant where space is at a premium and precise control is essential. Unlike other similar controls the 38000 can be adjusted against a calibrated scale. The 38000 is suitable for use in refrigeration plant to Settings can be adjusted by screwdriver using the black control evaporator pressure or as a high pressure limit plastic screw at the top of the case which will increase switch and may also be used on other systems using air, water, steam, and domestic heating and pumping systems. the setting when rotated ACW. Approximate operating values are shown on the calibrated scale. A knob pack is available if adjustment is a regular occurrence. Physical Description Installation Considerations The 38000 range of pressure switches are versatile and robust, with easily adjustable range settings. The 38000 is made up of three elements, the case, the pressure unit and the switch. The pressure unit is a seamless brass bellows (normally used on refrigeration or pressurised heating system applications). A restrictor can be Two mounting holes are provided in the body. These are 3.2mm diameter with 16mm centres. A bracket is supplied which may be used as an alternative. incorporated into the pressure element to minimise the effect of pump pulsation's. The switch is a single pole change over switch that enables wiring for make on rise or break on rise.

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TEDDINGTON APPLIANCE CONTROLS LTD Technical Specification 38000 Models Electrical Switch BOR Contacts MOR Nominal Diff Distributed by: Pressure Surge Restrictors 38000 pressure controls can be supplied with or without an integral restrictor in the pressure connection to damp transient pressure surges to the bellows from piston-type compressors. When a restrictor is required please select the correct the model reference, e.g.38003 has no restrictor. 38001 has an integral restrictor. 1m of capillary connecting tube is provided for solder pressure connections. Outline Details Mounting Bracket...

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