7
20190369
GB
Technical description of the burner
3.3
Technical data
Tab. B
(1)
Reference conditions: Ambient temperature 20°C - Gas temperature 15°C - Barometric pressure 1013 mbar - Altitude 0 m a.s.l.
(2)
Pressure at the test point of the pressure switch (Fig. 26 on page 24) with zero pressure in the combustion chamber and at maximum burner output.
(3)
Sound pressure measured in manufacturer's combustion laboratory, with burner operating on test boiler and at maximum output. The sound
power is measured using the "Free Field" method, required by EN 15036 standard, and according to an “Accuracy: Category 3” measurement, as
described in EN ISO 3746.
3.4
Electrical data
Tab. C
Model
RS 34 MZ
RS 44 MZ
Output
(1)
G20 - G25
G20 - G25
Max.
kW
Mcal/h
130 ÷ 390
112 ÷ 336
200 ÷ 550
172 ÷ 473
Min.
kW
Mcal/h
45
39
80
69
Fuel
Natural gas: G20 - G25
Pressione gas alla potenza max.
(2)
Gas: G20 / G25
mbar
15.5 / 21.9
29.9 / 28.9
Operation
•
Intermittent (min. 1 stop in 24 hours).
•
Two-stage (high and low flame) and one-stage all - nothing).
Standard applications
Boilers: water, steam, diathermic oil
Ambient temperature
°C
0 - 40
Combustion air temperature
°C max
60
Noise levels
(3)
Sound pressure
Sound power
dB(A)
68
79
70
81
Model
RS 34 MZ
RS 44 MZ
Main electrical supply
230V ~ +/-10%
50/60Hz single phase
Fan motor
rpm
V
W
2800
230
300
2800
230
420
Operating current
A
2.4
2.6
Motor capacitor
µF
12.5/260
12.5/420
Ignition transformer
V1 - V2
I1 - I2
220/240 V - 1 x 15 kV
45VA - 25 mA
Absorbed electrical power
W max
720
820
Protection level
IP 40