TEDDINGTON APPLIANCE CONTROLS LTD QW SOLID FUEL DAMPER THERMOSTAT ? Automatic Control of Coal or Wood or Anthracite Fired Solid Fuel Appliances. ? Modulating Action Designed to control Hot Water, Room or Fuel Appliances. ? Optimises Economy in Fuel Consumption. ? 3 Alternative Range Spindle Positions. ? Flexible Drive for Difficult Locations. Optional ? Heat Dissipation in Electric Storage Controls Heaters. Application The QW damper thermostat offers automatic temperature control and economy in the consumption of fuel. It can be used on room heaters, boilers, wood fired stoves, central heating units and night store electric room heaters. Thermal operation is by liquid expansion in the sensing phial, through copper capillary tubing to a stainless steel diaphragm capsule located in the instrument head. The QW is also used to optimise the distribution of core heat in night storage heaters by regulating the flow of Physical Description warm air to maintain a controlled room temperature. The QW damper thermostat is of a robust steel A manual adjustment model is also available. construction with a copper sensor phial and capillary. The range spindle can be supplied horizontal or vertical Installation Considerations to suit application. Damper arm and plates may be varied to suit application subject to economical quantities. Operation The QW thermostat controls the combustion in a solid fuel appliance by throttling the primary air intake to the fire. A flat damper plate at the end of the control arm is moved relative to the air intake port of the appliance in response to variations of temperature at the sensor. By means of the main bracket, rear studs or side bracket.

TEDDINGTON APPLIANCE CONTROLS LTD Technical Specification Damper Plates Temperature Ranges For: Room Air Control Hot water Flue temperature 10/30°C (50/80°F) 50/94°C (120/205°F) 20/300°C (70/570°F) A non-thermostatic manual adjustment control is also available. Alternatives to these ranges can be produced subject to economical quantities. Damper plates are available in rectangular or circular form as pack assemblies including fixing screws, lock nuts, spring mountings etc. The latter permit selfalignment of the plate in the closed position. Sensor Dimensions Sensors are available with diameter...