
116
ENG
General features and models
g0300122EN rel. 1.0 - 01.12.2021
18.1 Heating-water circuit specifi cations
UOM
UG045
UG090
UG150
UG180
UG300
UG450
heat input
rated
kW (BTU/h) 33 (112596)
62.5 (213250) 105 (358260) 125 (426500) 210 (7165209) 315 (1074780)
minimum
7.8 (26614)
14.7 (50156)
24.7 (84276)
14.7 (50156)
24.7 (84276)
24.7 (84276)
heat input
rated
34.8 (118737) 65 (221780)
108 (368496) 130 (443560) 216 (736992) 324 (1105488)
minimum
8.7 (29684)
16.25 (55445) 27 (92124)
16.25 (55445) 27 (92124)
27 (92124)
rated steam produc-
tion
rated
kg/h (lbs/h) 45 (100)
90 (200)
150 (330)
180 (400)
300 (660)
450 (990)
minimum
11.25 (25)
22.5 (50)
37.5 ()
22.5 (50)
37.5 ()
37.5 ()
max steam temp.
°C (°F)
105 (221)
105 (221)
105 (221)
105 (221)
105 (221)
105 (221)
water content in steady operation
l
120
120
200
200
415
615
NOx emissions
class
5(<70 mg/
Kwh)
5(<70 mg/
Kwh)
6(<56 mg/
Kwh)
4 (<100 mg/
kWh)
6 (<56 mg/
kWh)
6 (<56 mg/
kWh)
CO2
natural gas
(G20)
% vol
9.4
9.4
9.4
9.4
9.4
9.4
natural gas
(G25)
9.3
9.3
9.3
9.3
9.3
9.3
propane (G31)
11.2
11.2
--
11.2
--
--
butane (G30)
11.6
11.6
--
12
--
--
CO
mg/kWh
* <25
* <60
* <60
* <60
* <60
* <60
D. fl ue gas pipe***
mm
80 (3”)
80 (3”)
80 (3”)
2xØ80 (3”)
2xØ80 (3”)
3xØ80 (3”)
D. air intake pipe***
80 (3”)
80 (3”)
80 (3”)
2xØ80 (3”)
2xØ80 (3”)
3xØ80 (3”)
D. steam hose
1x Ø80
1x Ø80
1x Ø80
2x Ø80
2x Ø80
3x Ø80
natural gas combus-
tion fl ow-rate (G20)
(1)
rated
m3 St/h**
3.68
6.87
11.45
13.4
22.7
34.4
minimum
0.9
1.75
2.91
1.67
2.85
2.85
natural gas combus-
tion fl ow-rate (G25)
(1)
rated
4.2
8.7
14.6
17.5
29.2
43.8
minimum
1.02
1.98
3.3
1.98
3.3
3.3
propane combustion
fl ow-rate (G31)
(1)
rated
1.43
2.68
--
5.36
--
--
minimum
0.48
0.68
--
0.68
--
--
butane combustion
fl ow-rate (G30)
(1)
rated
1.1
2.06
--
4.12
--
--
minimum
0.37
0.545
--
0.545
--
--
gas
supply
pressure for
natural gas
(G20)
Pa/mbar/PSI 2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29
natural gas
(G25)
2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29 2000/20/0.29
propane (G31)
3000/30/0.44 3000/30/0.44 --
3000/30/0.44 --
--
butane (G30)
3000/30/0.44 3000/30/0.44 --
3000/30/0.44 --
--
max allowable pressure drop in air
intake and fl ue gas exhaust pipes
Pa/mbar/PSI 90/0.90/0,013 82/0.82/0,012 82/0.82/0,012 95/0.95/0,014 95/0.95/0,014 95/0.95/0,014
* value refers to combustion of natural gas (G20);
** m3St = dry gas at 15°C and 1013.25 mbar atmospheric pressure;
***: using the specifi c KITNSTALL for USA.
Tab. 18.e
18.2 Technical values of the fl ue gas according to useful heat input
fuel type
natural gas (G20)
natural gas (G25)
propane (G31)
butane (G30)
UG045
UG090
UG180
UG045
UG090
UG180
UG045
UG090
UG180
UG045
UG090
UG180
heat input
rated (kW)
34.76
65.00
130.0
34.76
65.00
130.0
34.76
65.00
130.0
34.76
65.00
130.0
heat input
rated (BTU/h)
118737
221780
443560
118737
221780
443560
118737
221780
443560
221780
221780
443560
fl ue gas fl ow-rate (kg/s) 0.0163
0.0303
0.0606
0.0167
0.03115 0.0623
0.0154
0.0283
0.0566
0.0147
0.0276
0.0551
fl ue gas
temperature °C (°F)
(1)
135
(275)
170
(338)
165
(329)
123
(253)
175
(347)
163
(325)
123
(253)
175
(347)
165
(329)
123
(253)
175
(347)
163
(325)
percentage of CO2
in fl u gas (%)
9.4
9.4
9.4
9.3
9.3
9.3
11.2
11.4
11.2
11.6
11.6
12
Tab. 18.f
fuel type
natural gas (G20)
natural gas (G25)
UG150
UG300
UG450
UG150
UG300
UG450
rated heat input (kW)
108
216
324
108
216
324
rated heat input (BTU/h)
368496
736992
1105488
368496
736992
1105488
fl ue gas fl ow-rate (kg/s)
0.048
0.096
0.144
0.0167
0.03115
0.0623
fl ue gas temperature °C (°F)
172 (342)
168 (334)
165 (329)
172 (342)
168 (334)
165 (329)
CO2 percentage in fl ue gas (%)
9.4
9.4
9.4
9.3
9.3
9.3
Tab. 18.g
(1)
Note:
referred data during the certifi cation phase according to the reference regulations.
Flue gas condensate fl ow
UG INDOOR version
Conditions:
External air temperature (° C)
°C
1
Flue duct diameter
mm
80
Flue pipe length
m
10
UG Model
Steady condition
l/h
UG 045
0,6 - 0,8
UG 090
1,0 - 1,3
UG 180
1,9 - 2,6
Conditions:
External air temperature (° C)
°C
1
Flue duct diameter
mm
100
Flue pipe length
m
10
UG Model
Steady condition
l/h
UG 045
0,7 - 1,0
UG 090
1,1 - 1,4
UG 180
2,2 - 2,8
Conditions:
External air temperature (° C)
°C
1
Flue duct diameter
mm
100
Flue pipe length
m
10
UG Model
Steady condition
l/h
UG 150
1,9 - 2,6
UG 300
3,7 - 5,1
Note:
values referred to thermal conditions, in the start-up phase the values can be up to 5-6 times higher.
Values refer to operation with natural gas / methane