Nozzles Recommended; Adjusting Pump Pressure; Adjusting The Combustion Head - Riello Gulliver BG6.1D Installation, Use And Maintenance Instructions

8.3

Nozzles recommended

Delavan A - B - W.
Alternative nozzles
Type Nozzle Angle
Steinen 60° H
985T Monarch 60° PL
Hago 60° H
Monarch 80° R
Hago 80° B
986T
Monarch 60° AR
Hago 60° P
The burner complies with the emission requirements of the EN
267 standard.
In order to guarantee that emissions do not vary, recommended
and/or alternative nozzles specified by Riello in the Instruction
and warning booklet should be used.
It is advisable to replace nozzles once a year dur-
ing periodical maintenance.
WARNING
The use of nozzles other than those specified by
Riello S.p.A. and inadequate regular maintenance
may result into emission limits non-conforming to
the values set forth by the regulations in force, and
CAUTION
in extremely serious cases, into potential hazards
to people and objects.
The manufacturing company shall not be liable for
any such damage arising from nonobservance of
the requirements contained in this manual.
8.4

Adjusting pump pressure

The pump is calibrated in the factory, according to Tab. B.
Pump pressure (bar)
Type
1st stage
985T 9
986T 9
Tab. B
7
8
Notes
Up to 2.25 GPH
Up to 2.25 GPH
2nd stage
15
15
9
S7993
Operation
1st stage adjustment
If necessary, withdraw the pressure by means of the screw 7)
(Fig. 18).
The pressure gauge for checking pressure should be assembled
in place of the plug 8).
2nd stage adjustment
If necessary, withdraw the pressure by means of the screw 9)
(Fig. 18).
The pressure gauge for checking pressure should be assembled
in place of the plug 8).
8.5

Adjusting the combustion head

The adjustment of the combustion head varies depending on the
burner output.
Do the following to adjust it:
 Rotate the adjustment screw 2) (Fig. 19) clockwise or anti-
clockwise until the notch on the regulating rod 3) is level
with the outer surface of the nozzle-holder assembly 1).
 In the example, the regulating rod 3) is set at notch 2.5; this
means that the burner is regulated for an output of 5.3 kg/h
with pump pressure at 9 bar and with the use of a nozzle of
1.50 GPH, as indicated in Tab. A page 18.
S7995
Fig. 18
19 GB
2
3
1
Fig. 19
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