PART I: INSTALLATION
7
Specifications
* NOTE ON THE WORKING SERVICE: the control box automatically stops after 24h of continuous working. The control box
immediately starts up, automatically.
BURNERS M-.TN...
NG550
M-.TN..
0.25
NG550
M-.TN..
0.32
NG550
M-.TN..
0.40
NG550
M-.TN..
0.50
LG550
L-.TN..
0.25
LG550
L-.TN..
0.32
LG550
L-.TN..
0.40
LG550
L-.TN...
0.50
Output
min-max kW
245 - 570
Fuel
Natural gas
L.P.G.
Gas category
(see next paragraph)
I
3B/P
Gas rate
min-max Stm
3
/h
26 - 60
9.4 - 22
Gas pressure
min-max mbar
(see Note 2)
Power supply
220 /
230V - 50
/ 60
Hz
Total power consumption
kW
0.92
Electric motor)
kW
0.62
Protection
IP40
Approx. weight
kg
55
Valves size / Gas connection
1”
/ Rp 1
1”
1/4
/
Rp 1
1/4
1”
1/2
/
Rp 1
1/2
2”/ Rp 2
1”
/ Rp 1
1”
1/4
/
Rp 1
1/4
1”
1/2
/
Rp 1
1/2
2”/ Rp 2
Operation
Single stage
Operating temperature
°C
-10 ÷ +50
Storage Temperature
°C
-20 ÷ +60
Working service*
Internittent
BURNERS
NG550
M-.xx..
0.25
NG550
M-.xx...
0.32
NG550
M-.xx...
0.40
NG550
M-.xx...
0.50
LG550
L-.xx..
0.25
LG550
L-.xx...
0.32
LG550
L-.xx...
0.40
LG550
L-.xx...
0.50
Output
min-max kW
160 - 570
Fuel
Natural gas
L.P.G.
Gas category
(see next paragraph)
I
3B/P
Gas rate
min-max Stm
3
/h
17 - 60
6.2 - 22
Gas pressure
min-max mbar
(see Note 2)
Power supply
220 / 230V - 50 / 60Hz
Total power consumption
kW
0.92
Electric motor
kW
0.62
Protection
IP40
Approx. weight
kg
55
Valves size / Gas connection
1”
/ Rp 1
1”
1/4
/
Rp 1
1/4
1”
1/2
/
Rp 1
1/2
2” / Rp 2
1”
/ Rp 1
1”
1/4
/
Rp 1
1/4
1”
1/2
/
Rp 1
1/2
2” / Rp 2
Operation
Double stage - Progressive - Fully-modulating
Operating temperature
°C
-10 ÷ +50
Storage Temperature
°C
-20 ÷ +60
Working service*
Internittent
Note1:
All gas flow rates are referred to Stm
3
/h (1013 mbar absolute pressure, 15 °C temperature) and are valid for G20 gas (net
calorific value H
i
= 34.02 MJ/Stm
3
); for L.P.G. (net calorific value H
i
= 93.5 MJ/Stm
3
)
Note2:
Maximum gas pressure = 360mbar (with
Dungs MBDLE/MBC valves)
Minimum gas pressure = see gas curves for network gas pressure.
