Unigas P20, Installation, Operation And Maintanance Manual

Page: 5 / 52

PART I: INSTALLATION 5
DOUBLE STAGE, PROGRESSIVE AND FULLY MODULATING BURNERS
Note: all the gas flow rates (m
3
/h) are referred to standard gas conditions: 1013 mbar pressure, 15° C temperature.
* Minimum pressure required to get the maximum rate with any back-pressure in combustion chamber (referring to the perfor-
mance curves). The burner operates correctly also with lowest pressure only if these are enough to guarantee the necessary
gas rate.
BURNERS TYPE/MODEL P20 C-....25 P20 C-....40 P30 C-....40/50 P45 C-....40
Input min. low flame kW 85 85 65 145
min. high flame kW 120 120 100 220
max. kW 230 280 350 520
min. low flame kcal/h 73.100 73.100 55.900 124.700
min. high flame kcal/h 103.200 103.200 86.000 189.200
max. kcal/h 197.800 240.800 301.000 447.200
Fuel Town gas Town gas Town gas Town gas
Category I
2h
I
2h
I
2h
I
2h
Gas flow rate min.- max.
(m 3 /h)
21 - 58 21 - 70 16 - 87 36 - 130
Gas pressure min.* - max. mbar 50 - 200 60 - 200 50 - 200 80 - 200
Power supply 230V - 50Hz 230V - 50Hz 230V - 50Hz 230V - 50Hz
Power consumption W 650 650 650 900
Electric motor (2800 rpm) W 370 370 370 620
Protection IP40 IP40 IP40 IP40
Weight Kg 30 30 30 58
Gas train size 1” 1”
1/2
1”
1/2
/ 2” 1”
1/2
Gas connections Rp 1 Rp 1
1/4
Rp 1
1/4
/ Rp1 Rp 1
1/2
Operation
double stage
progressive
fully modulating
double stage
progressive
fully modulating
double stage
progressive
fully modulating
double stage
progressive
fully modulating
Destination country * * * *
BURNERS TYPE/MODEL P45 C-....50 P65 C-....50 P65 C-....65
Input min. low flame kW 145 270 270
min. high flame kW 220 480 480
max. kW 520 970 970
min. low flame kcal/h 124.700 232.200 232.200
min. high flame kcal/h 189.200 412.800 412.800
max. kcal/h 447.200 834.200 834.200
Fuel Town gas Town gas Town gas
Category I
2h
I
2h
I
2h
Gas flow rate min.- max.
(m
3
/h)
36 - 130 67 - 242 67 - 242
Gas pressure min.* - max. mbar 60 - 200 120- 200 70 - 200
Power supply 230/400V - 50Hz 230V - 50Hz 230V - 50Hz
Power consumption W 900 2000 2000
Electric motor (2800 rpm) W 620 1500 1500
Protection IP40 IP40 IP40
Weight Kg 58 150 155
Gas train size 2” 2” 2”
1/2
Gas connections Rp 2 Rp 2 DN 65
Operation
double stage
progressive
fully modulating
double stage
progressive
fully modulating
double stage
progressive
fully modulating
Destination country * * *