01-UDBRG_V1-DIMU-00-EN
TECHNICAL DATA
20
4.6
GAS INLET PRESSURES
GAS REQUIREMENT TABLE
Type of gas
Natural
Propane
Operating gas pressure
in W.C. (mbar)
7.0 (17.4)
11.0 (27.4)
Min.Supply gas pressure
in W.C. (mbar)
6.0 (14.9)
9.0 (22.4)
Max.Supply gas pressure
in W.C. (mbar)
10.5 (26.1)
13.0 (32.3)
Warning
: if the supply pressure is lower than “
Min.Supply gas pressure
”, the icon appears in the display
and the heating does not activate.
Contact your gas company for correct supply line sizes.
Warning
: if the supply pressure exceeds “
Max.Supply gas pressure
”, a pressure regulator must be installed, to
provide a maximum of 10,5” W.C (for natural gas) or 13” W.C (for propane gas) gas pressure to the gas control valve.
4.7
GAS MANIFOLD PRESSURE; NOZZLES;PRIMARY AIR DISTANCE
UDBRG.._V1
029
038
048
058
Rated heating power
BTU/HR
95,500
119,500
143,500
179,000
MANIFOLD PRESSURE
Natural gas
in W.C. (mbar)
6.4 (15.9)
6.3 (15.6)
6.0 (15.0)
5.7 (14.3)
Propane gas
in W.C. (mbar)
10.4 (25.9)
10.6 (26.4)
10.0 (24.8)
10.4 (25.9)
NOZZLES (Nr.x
Ø)
Natural gas
Ø 1/100 mm
8x160
10x165
13x180
15x195
Propane gas
Ø 1/100 mm
8x110
10x110
13x110
15x110
PRIMARY AIR DISTANCE (H)
Natural gas
Inches (mm)
0.039 (1)
0.039 (1)
0.039 (1)
0.039 (1)
Propane gas
Inches (mm)
0.59 (15)
0.59 (15)
0.59 (15)
0.59 (15)