E.C.A. Fortius - Gas Valve

Tablo 4 Technical and Functional Specifications
Other Specifications
Nr. of electrodes: 2 for flame ignition and one for detection
Flame sensing cable and spark cable: max. 0,5 m
External components (except heat demand): max 0,5 m
Remote reset: max. of 5 reset in 15 minutes
CH water SET temperature range:
40 °C … 80 °C
CH water OFF temperature: CH water SET temperature + 10 °C
CH water ON temperature: CH water SET temperature
DHW water SET temperature range :
35 °C … 60 °C
DHW water OFF safety temperature:
75 °C
DHW ON Flow rate :
3,0 lt/min
DHW OFF Flow rate :
2,5 lt/min
Frost protection level 1 ON temperature:
8 °C (pump runs)
Frost protection level 1 OFF temperature:
10 °C (pump is OFF)
Frost protection level 2 ON temperature:
6 °C (burner runs)
Frost protection level 2 OFF temperature:
30 °C (burner is OFF)
Limit thermostat OPEN temperature:
105 °C
Limit thermostat CLOSE temperature:
75 °C
TTB sensor limit temperature (in the first 90 sec) 100 °C
TTB sensor limit temperature (after the 90 sec) 70 … 95 °C
GAS VALVE
2
Gas valve controls and modulates the gas flow to the burner. It consists of two valves: The first one
is the on/off safety valve and the second one is the main (modulation) valve which enables safety
and modulated gas control. Maximum and minimum operating pressures can be adjusted
mechanically on the gas valve. Maximum outlet pressure can be adjusted with the adjustment screw
of the maximum pressure regulator. Minimum outlet pressure can be adjusted with the mechanical
minimum adjustment screw (see Gas pressure adjustment, page 30).
Table 5 Gas Valve
24 kW Models 28 kW Models
Max. pressure setting (factory default) 11,2 11,3
Natural Gas
(mbar)
Min. pressure setting (factory default) 1,3 1,2
Max. pressure setting (factory default) 28 / 35 28 / 35
LPG
(mbar)
Min. pressure setting (factory default) 3,3 / 4,1 3,4 / 4,2
Gas inlet & outlet connections
G ¾”
(External thread)
G ¾”
(External thread)
12