Section Code 1465 : Combination boilers and Water Jacketed Tube heaters. Low volume water content. Heat retained in water heaters will cause expansion of water after closure of draw-off taps and valves. Provision for expansion of water must be made to accommodate excess pressure within the system. Particular care is required where check valves are positioned, or loose jumper valves are thought to be upstream of the heater.
Back To Directory SectionsRange of wall hung, gas-fired condensing combination boilers providing domestic hot water via a plate heat exchanger. The pressurised central heating system incorporates an expansion vessel and pressure relief valve set at 3.0 bar. Some models, please refer to model below, incorporate only a primary circuit. Maximum working pressures: Primary circuit: 2.5 bar, Secondary circuit 10.0 bar. Maximum operating temperature both circuits: 60°C.
Range of floor-standing gas combination boilers, supplied with isolation valves, expansion vessel and a pressure relief valve set at 3.0 bar. Maximum working pressure: Primary circuit 2.5 bar, secondary 10 bar. Maximum operating temperature: Primary 82°C / secondary circuit 60°C.
Range of domestic stainless steel indirect unvented hot water storage cylinders, incorporating a stainless-steel coil for connection to external heating resource. The secondary circuit is factory fitted with a temperature and pressure relief valve (7.0 Bar @90°C) and an immersion heater. Primary working pressure: 3 bar; secondary working pressure: 5.5 bar. Maximum operating temperature 90 °C.
Page 6 of 6
We use cookies to give you the best possible experience with WRAS. Some are essential to provide website functions and ensure the website is secure. We also use cookies to help us understand how people use the site and to make improvements. Click "Accept All" to enable recommended settings or click "Manage cookies" to adjust your settings. For more details, see our Cookie Policy.
