14
Table 4 - Characteristics of G20, G25 and G31 Gases used by Gas-Fired Heating Modules fitted to
YK*Roof Top Air Conditioners
Module de chauffage
G205
G250
G350
G400
Natural Gas G20 (20mbar)
34.02 MJ/m3 (15 C-1013)
Injector diameter
(mm)
6,05
7,67
8,20
10,69
Heating Capacity
(kW)
77,4
41,4
49,1
70,6
Minimum Gas Pressure (Trip-out)
(mbar)
15,0
15,0
15,0
15,0
Normal Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
3,1
4,8
5,7
8,3
Heat Rate
(kW)
45,0
54,0
78,7
85,0
Reduce Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
4,6
5,1
8,1
8,5
Heat Rate
(kW)
43,5
48,0
76,8
80,0
Natural Gas G25 (20 ou 25 mbar)
29.30 MJ/m3 (15 C-1013)
Injector diameter
(mm)
7,67
8,20
9,80
10,69
Heating Capacity
(kW)
35,0
38,3
59,4
60,3
Minimum Gas Pressure (Trip-out)
(mbar)
15,0
15,0
15,0
15,0
Normal Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
4,7
5,3
8,3
8,2
Heat Rate
(kW)
38,0
43,0
67,4
67,0
Reduce Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
4,5
4,9
7,8
7,9
Heat Rate
(kW)
36,5
40,0
63,4
64,0
Natural Gas G31 (30, 37ou 50 mbar)
88.00 MJ/m3 (15 C-1013)
Injector diameter
(mm)
5,40
6,67
7,37
8,50
Heating Capacity
(kW)
37,7
48,6
57,3
78,2
Minimum Gas Pressure (Trip-out)
(mbar)
20,0
20,0
20,0
20,0
Normal Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
1,7
2,2
2,7
3,5
(kg/h
3,2
4,2
5,1
6,6
Heat Rate
(kW)
41,0
54,0
65,3
85,0
Reduce Rate
Gas Flow (15 C-1013 mbar)
(m3/h)
1,6
2,2
2,6
3,2
(kg/h)
3,0
4,1
4,9
6,1
Heat Rate
(kW)
38,5
53,0
62,6
78,0
Combustion Air Flow
(m3/h)
60,0
72,0
98,0
113,0
(Avec E=25%)
NOTE: GAS FLOW MAY VARY BY AS MUCH AS
±
10%
MARKING CATEGORY OF THE GAS SECTION IN THE
DIFFERENT COUNTRIES
NL
FR
BE
GB/ES
IT
DE
Netherlands
France
Belgium
United Kingdom
Italy
Germany
ll
2L3P
ll
2E +3P
l
2E +
ll
2H3P
l
2H +
l
2E
I
3P
(Natural Gas Only)
I
3P
G20 - 20 mbar
G31
G31
G37
30 mbar
37 mbar
50 mbar
