Ormandy manufacture a range of packages suitable for both vented and unvented applications. Where boiler power is limited the addition of a buffer vessel can ensure that peak demands are met. By circulating the secondary water through the entire buffer vessel, a reservoir of hot water is always available. Following peak demands the exchanger control valve will remain open until the full buffer vessel contents have reached the design temperature, normally 60°C. This reduces the risk from legionnaires disease.
Plate exchanger and buffer vessel packages are particularly suited to buildings where the demand is not constant but which require high peak flows. Hospitals, Hotels and Leisure Centres are examples of buildings with peak demands for hot water that can be supplied by these packages, without the need for excessive boiler ratings.
Ormandy standard packages are supplied with skid mounted, pre-piped heat exchangers and buffer vessels, complete with secondary shunt pumps, isolating and regulating valves. The buffer vessels are also fitted with deflectors and sparge pipes to ensure peak performance. Unvented packages also include expansion vessels and all necessary safety devices to conform with Building Regulations. Where access is restricted the equipment can be supplied loose for on-site connection.
Hot Water Demand Requirements
HPP and Buffer Vessel
When coupled with a buffer vessel, the required maximum boiler rate can be reduced.
