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 mounted combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system, incorporating a pressure relief valve set at 3.0 bar and expansion vessel on the primary circuit. The inlet of the replenishing valve between the primary and secondary circuits incorporate a plastic strainer. Maximum working pressure 2.5 bar (primary) and 6.0 bar (secondary). Maximum operating temperature 85˚C.
LCB700 range of internal and external oil-fired condensing combination boilers providing domestic hot water and pressurised central heating via a plate heat exchanger. The products are supplied with a temporary filling loop which incorporates a combined isolation valve and double check valve assembly (suitable for backflow protection against Fluid Category 3), stainless steel braided EPDM lined flexible hose assembly and an isolation valve. The primary (space heating) circuit incorporates an expansion vessel and a pressure relief valve (set at 3.0 bar). Operating parameters: Primary (space heating) circuit: Maximum working pressure 2.5 Bar. Maximum operating temperature 105°C. Secondary (DHW) circuit: Maximum working pressure 10.0 Bar. Maximum operating temperature 85°C.
Ranges of wall hung, gas-fired condensing combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system incorporating an expansion vessel and pressure relief valve set at 3.0 bar. The supplies to both domestic hot water and primary are controlled via spherical valves. Products are supplied with a rigid filling loop or keyless filling link. Maximum working pressure of the primary circuit is 2.5 bar & maximum supply pressure of the secondary circuit is 8.0 bar. Cold water supply only. Maximum operating temperature 95°C.
Range 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. The supplies to both domestic hot water and primary are controlled via spherical valves. The primary circuit has a maximum working pressure of 2.5 bar. The secondary circuit has maximum working pressure of 10.0 bar. Maximum supply temperature is 60°C. Maximum operating temperature of secondary circuit is 85°C.
Range of floor standing gas fired combination boilers providing domestic hot water via a stainless-steel plate heat exchanger. Unit is supplied with a safety relief valve (8.0 bar). Maximum working pressure 7.5 bar. Maximum operating temperature 85°C.
Range of wall hung, gas-fired condensing combination boilers providing domestic hot water via a plate heat exchanger and pressure relief valve set at 3.0 bar. The supplies to both primary hot water and secondary are controlled via spherical valves. The boilers incorporate a filling loop assembly which incorporates a double check valve assembly (suitable for backflow protection against Fluid Category 3). Primary circuit: Maximum working pressure 2.5 bar. Maximum operating temperature 82°C. Secondary circuit: Maximum working pressure 10.0 bar. Maximum operating temperature 60°C
Range of floor standing gas fired combination boilers providing domestic hot water via a stainless-steel plate heat exchanger. Unit is supplied with a safety relief valve (8.0 bar). Maximum working pressure 7.5 bar. Maximum operating temperature 85°C.
Range of gas fired condensing combination boilers providing domestic hot water via a plate heat exchanger. The cold inlet incorporates an angled spherical valve with a brass body, chromium plated brass ball and a lever operating member. The primary circuit incorporates an expansion vessel, isolation valves on flow and return, drain valve and a pressure relief valve set at 3.0 bar. Maximum working pressure of the primary circuit is 2.5 bar. Maximum working pressure of the secondary circuit is 10.0 bar. Maximum operating temperature for the secondary circuit is 55˚C. Cold supply only.
Greenstar Heatslave II range of floor standing oil-fired condensing combination boilers providing domestic hot water via a plate heat exchanger and pressurised central heating system, which incorporates an expansion vessel and pressure relief valve set at 3.0 bar. The cold water inlet incorporates a screwdriver operated spherical valve followed by a plastic flow regulator inserted within the pipework. Maximum working pressure: Primary circuit 2.5 bar. Secondary circuit 10.0 bar. Maximum operating temperature 82°C.
"Greenstar" range of indirect heat interface units and "Flow 8000" (added December 2024) range of direct heat interface units providing heating and instantaneous hot water. The heating system incorporates an expansion vessel. The products are sold with or without a prefix kit (see model), which comprises of a mounting bracket that includes spherical valves for all circuits. The "Greenstar" indirect models include a pressure relief valve (set at 3.0 bar) on the space (central) heating circuit. Greenstar models: Maximum working pressure district heating 10.0 bar. Maximum working pressure space heating 2.5 bar. Maximum working pressure secondary hot water 10.0 bar. Maximum operating temperature 60°C (secondary) and 90°C (primary). Flow 8000 models (added December 2024): Maximum working pressure district and space heating 10.0 bar. Maximum working pressure secondary hot water 10.0 bar. Maximum operating temperature 60°C (secondary) and 90°C (primary).
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