Section 2: technical Data
Page 9
2.2 Burner Settings
Model
MaX flame
Min flame
Burner setting
Heat
output
Heat input
Full
eff.
input
kg/hr*
Draught
CO
2
Burner setting
Heat output
tiME
LOaD
MaX
tiME
PaUSE
MaX
kW
(Btu/h)
kW
(Btu/h)
mbar
(in.wg)
%
tiME PaUSE
Min
kW
(Btu/h)
4-16
1.7 sec
3.0 sec
16.2
(55,300)
17.2
(58,700)
101.5
3.53
0.75 - 1.25
(0.30 - 0.5)
8-12
14.0 sec
4.5
(15,400)
Notes
*Heat input is based on a calorific value of 4.81 kWh/kg.
Heat input and output data given above is approximate only.
All burner settings must be checked as part of commissioning and servicing. Refer to Section 9.6 for full details of the burner settings and how to access, check
and, where necessary, how to adjust them.
2.3 Flue Gas analysis
As part of both the commissioning and servicing procedures, the CO
2
content of the flue gases must be checked.
There is no combustion test point on the boiler. A test point (and flue
inspection hatch) is provided in the Inspection Pipe (product code:
WPBOM/IP) that MUST be fitted to the boiler flue outlet.
To gain access to this test point, the circular outer cover must be
removed. To do this, turn the knob in the centre of the outer cover
approximately one turn anticlockwise and pull the cover away from
the inspection pipe. The combustion test point is located immediately
below the flue inspection hatch. Refer to Figure 11-11.
Unscrew and remove the test point screw to insert the combustion
analyser probe.
Replace the outer cover using the reverse procedure, turning the knob
approximately one turn clockwise to secure the cover in place.
always replace the test point screw and outer access cover
following combustion testing. Do not overtighten test point
screw.
Use only a calibrated flue gas analyser with a ‘Wood Pellet’ fuel
setting. Setting the fuel to anything other than wood pellets will
give an incorrect reading.
to ensure correct combustion, the burner settings given in the
table (in Section 2.2) must nOt be changed unless instructed
to do so by Grant UK.
nOtE
!
2.4 Clearances and Dimensions
2.4.1 Clearances
Clearances
Right hand side
150 mm
Left hand side
400 mm
Front
850 mm
Rear
30 mm
2.4.2 Dimensions
Refer to Figures 2-1 to 2-7.
Figure 2-1:
Boiler dimensions - left side view
DWG NO:
REV:
VECTA OUTDOOR UNIT DIMENSIONS
22/12/16
22613
DATE:
JOB TITLE:
VECTA 4_16kW
OUTDOOR
DRAWING TITLE:
REV DISCRIPTION:
REV DATE:
868
870
141
13
2
150
26
0
31
2
114
12
16
FRONT
VIEW
LEFT SIDE
VIEW
RIGHT SIDE
VIEW
REAR
VIEW
20
13
40
196
119
18
43
16
57
86
8
TOP
VIEW
DWG NO:
REV:
VECTA OUTDOOR UNIT DIMENSIONS
22/12/16
22613
DATE:
JOB TITLE:
VECTA 4_16kW
OUTDOOR
DRAWING TITLE:
REV DISCRIPTION:
REV DATE:
868
870
141
13
2
150
26
0
31
2
114
12
16
FRONT
VIEW
LEFT SIDE
VIEW
RIGHT SIDE
VIEW
REAR
VIEW
20
13
40
196
119
18
43
16
57
86
8
TOP
VIEW
Figure 2-2:
Boiler dimensions - top view
