Grant Vortex Series User Manual

Page 42 Section 11: Servicing
11.8 BURNER COMPONENTS
COMBI 21, COMBI 26 AND COMBI 36
(RIELLO RDB 2.2 BX)
8
5
16
6
7
1
9
14
13
101743
11 15 12
2
Item Description Item Description
1 Oil pump 10 Air inlet
2 Air damper adjustment screw 11 Motor
3 Reset button with lockout lamp 12 Motor ignition capacitor
4 Photocell 13 Fuel suction line
5 Control box 14 Return line
6 Pump pressure adjustment screw 15 Combustion head adjustment handle
7 Extension for gauge connection 16 Coil
8 Combustion head 17 Air pressure test point
9 Flange with insulating gasket

Grant Vortex Series Specifications

General

Heat Exchanger Material	Stainless Steel
Boiler Type	Condensing
Model	Vortex Pro
Central Heating Flow Temperature Range	30°C to 80°C
Max Working Pressure	3 bar
Electrical Supply	230V, 50Hz
Efficiency	Up to 93.3% (depending on model)
Expansion Vessel	Integrated