4 Description of the product
4.1 General description
POWER HT + floor-standing condensing gas boilers have the following
characteristics:
Low pollutant emissions
High efficiency heating
Electronic control panel
Flue gas discharge by a forced flue, chimney or bi-flow type connection.
Perfectly suitable for cascade systems with several boilers.
4.2
Operating principle
4.2.1
Circulating pump
Important
The benchmark for the most efficient circulating pumps is EEI ≤
0.20.
4.2.2 Gas/air setting
Boiler model Operating principle
POWER HT+ 1.130
POWER HT+ 1.150
The casing fitted to the boiler is also used as an air box.
Air is drawn in by the fan and gas injected into the Venturi by the fan intake.
The fan speed is modulated according to the settings, the heat demand and the
actual temperatures measured by the temperature sensors.
The gas and air are mixed in the Venturi. The gas/air ratio command function ac
curately adjusts the quantities of gas and air required.
This provides optimum combustion over the entire output range.
The gas/air mixture is sent to the burner, located upstream of the heat exchanger.
POWER HT+ 1.200
POWER HT+ 1.250
An air intake hose conveys the air directly to the air intake nozzle on the venturi
inlet.
The fan speed is modulated according to the settings, the heat demand and the
actual temperatures measured by the temperature sensors.
The gas and air are mixed in the Venturi. The gas/air ratio command function ac
curately adjusts the quantities of gas and air required.
This provides optimum combustion over the entire output range.
The gas/air mixture is sent to the burner, located upstream of the heat exchanger.
4 Description of the product
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