28
Installation manual
Natural gas
Gas category
Inlet pressure
(mbar)
Nozzle pres-
sure (mbar)
Nozzle size (
⌀
mm)
Air reducing/
restriction plate
(mm)
Label number
May be avail-
able in follow-
ing countries
2H, 2E
20
8
3.50
490359201
A = 18
Default
AT, BG, CZ,
DK, EE, FI, GR,
HR, HU, IS, IE,
IT, LV, LT, NO,
PT, RO, SK, SI,
ES, SE, CH,
TR, GB, DE,
PL, LU
2E+
20 / 25
No regulation
2.90
490359203
A = 29
490375651
BE, FR
2E (G20)
20
8
3.50
490359201
A = 18
490375652
NL
2L (G25)
25
12
2(43.46-45.3
MJ/m3 (0 °C))
(G25.3)
25
12
2LL (G25)
20
12
3.50
490359201
A = 18
490375652
DE
A
When a machine with liquid petroleum gases shall be installed or used on high altitude (2001 feet and higher) a kit
for high altitude must be installed.
For kit No. please refer to the spare parts list.
8.5
Test run
• Loosen the measuring branch screw (2) 1/4 turn; connect a manometer to the measuring branch.
• Select a program with heat.
• Start the machine.
• Check the nozzle pressure, see “Table of pressure and adjustment”.
• If necessary adjust the regulator setting screw (4) behind the cover screw (3). Replace the cover screw (3) if
removed.
• Check that the gas is burning evenly. The blue flame on the burner is preferred.
2
3, 4
fig.7120
Summary of Contents for D7-550
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