Drayton Control Pack Biflo 86 With LP522 Programmer
Invensys

Drayton Control Pack Biflo 86 With LP522 Programmer

Invensys

Product Code: PBBE86

£128.87
Ex Tax: £107.39
Quantity:  
 

Drayton Control Pack Biflo 86 With LP522 Programmer

  • Pack includes a room thermostat, a Cylinder thermostat, a wiring cetrre, 22mm Mid Position Valve and a LP522 programmer.
  • Convenient, all-in-one solution.
  • Simple to buy and install.
  • Cost effective solution.
  • Biflow Mid Position Brochure

Biflo Mid-Position

In a fully pumped system the boiler provides a common supply of heated water which is fed to the motorised valve by the pump. The mid-position valve has three positions of operation, these depend on demand from the thermostats. In 'mid-position' the valve directs the flow of heated water to both heating and hot water circuits. Should either thermostat become satisfied, the valve will move leaving only the heating or the hot water port open. The boiler and pump will continue running whilst there is a demand from one or both thermostats. If both thermostats become satisfied the pump and boiler will switch off to save fuel.

Operation

In a fully pumped system the boiler provides a common supply of heated water which is fed to the motorised valve by the pump. The mid-position valve has three positions of operation, these depend on demand from the thermostats ' see table opposite. In 'mid-position' the valve directs the flow of heated water to both heating and hot water circuits. Should either thermostat become satisfied, the valve will move leaving only the heating or the hot water port open. The boiler and pump will continue running whilst there is a demand from one or both thermostats. If both thermostats become satisfied the pump and boiler will switch off to save fuel.