Grant Vortex Combi 26 User Manual

11
Combi V3, Combi Max and Vortex Combi models
26
36
4 - BOILER TECHNICAL INFORMATION
Notes:
1 The data given above is approximate only and is based on the boiler being used with a low level balanced flue.
2 The above settings may have to be adjusted on site for the correct operation of the burner.
3 Gas Oil is not suitable for use with a Grant Vortex Combi boiler.
4 * Net thermal efficiency.
5 The net flue gas temperatures given above are ± 10%.
6 When commissioning the air damper must be adjusted to obtain the correct CO
2
level.
7 The combustion door test point may be used for CO
2
and smoke readings only. Do not use this test point for temperature
or efficiency readings.
Flue gas analysis
To allow the boiler to be commissioned and serviced, the boiler is supplied with a combustion test point on the front
cleaning door. When this test point is used please note the following:
1. The test point is for CO
2
and smoke readings only.
2. The boiler efficiency and temperature must be taken from the flue test point on high level, vertical and
conventional flue adaptors.
3. Concentric low level flues do not contain a test point. The temperature and efficiency readings must be taken from
the flue terminal.
Note: Vortex Combi boilers are only for use with kerosene.
Vortex Combi oil boilers using Class C2 kerosene
4.6
(kW)
26.0
36.0
(Btu/h)
88 700
123 000
101.0
101.5
Nozzle
0.75/80°EH
1.00/80°EH
Oil
press.
(bar)
8.0
9.1
Smoke
No.
0 - 1
0 - 1
Fuel flow
rate
(kg/h)
2.16
3.01
Flue gas
temp.
(°C)
75 - 80
78
CO
2
(%)
12.0
12.0
Burner
head
T2
T5
Heat Output
Net
eff *
(%)
Model
Burner
type
Riello RDB1
Riello RDB2.1

Grant Vortex Combi 26 Specifications

General

Brand	Grant
Model	Vortex Combi 26
Category	Boiler
Language	English