Heating Innovations Limited

 

Home Up H3 system operation H3 diagram H3 system layout H3 photograph

 

Heat leak radiator has circuit at all times -Sometimes gravity and sometimes pumped

Red = Flow  White = Not flowing.

Function 1.  

Gravity Circuit for the Solid Fuel Boiler when in Slumber Mode or power cut.

When the fire has been first lit, or it is in slumber mode, (in the case of the all night firing appliances), gravity circulates through the H3 Panel into the hot water cylinder and the heat leak radiator (when fitted).

 

Status.

bulletMotorized Valve no 9 -  Naturally Open.
bulletMotorized Valve no 10/17 - Naturally Open to the Hot Water Cylinder. (closed to the radiators)
bulletPump off

 

 

 

Function 2.  

Pumped Circuit for the Solid Fuel Boiler when in Hot Water Mode. 

As the fire builds up heat the temperature rise will be detected by the solid fuel pipe thermostat fixed to the flow pipe. The thermostat is set at 55deg.C, when this is achieved valve No.9 is automatically motored closed to shut off the gravity circuit and the pump is switched on. 

 The above gravity circuit is now pumped through the H3 Panel into the hot water cylinder and the heat leak radiator (when fitted)

In hot water mode, motorized Valve no 10/17 is naturally open to the hot water cylinder. (closed to the radiators)

 

Status.

bulletMotorized Valve no 9----- Motored Closed to shut off the Gravity Circuit.
bulletMotorized Valve no 10/17 Naturally Open to the Hot Water Cylinder. (closed to the radiators)
bulletPump On

 

 

Function 3.  

Pumped Circuit for the Solid Fuel Boiler when in Hot Water and Heating Mode. 

As above in function 2, but in hot water and heating mode motorized Valve no 10/17 is motored to mid position the heat is diverted to both the hot water cylinder and the radiator system.

 

Status.

bulletMotorized Valve no 9----- Motored Closed to shut off the Gravity Circuit.
bulletMotorized Valve no 10/17 Motored To Mid Position. Open to the Hot Water Cylinder & Radiators.
bulletPump on

 

 

Function 4. 

Pumped Circuit for the Solid Fuel Boiler when in Heating Mode with Hot Water Satisfied

When the hot water cylinder reaches optimum temperature (detected by the cylinder thermostat), motorized Valve no 10/17 is motored open to the radiators and closed to the hot water cylinder.

 

Status.

bulletMotorized Valve no 9----- Motored Closed to shut off the Gravity Circuit.
bulletMotorized Valve no 10/17 Motored Open to the Radiators & Closed to the Hot Water Cylinder
bulletPump on

 

 

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