35
Grant Vortex Indoor/Utility, System and Boiler House Oil Boilers
6 - BOILER INSTALLATION
7 - COMMISSIONING
Pressure gauge
(System models only)
Boiler
thermostat
Overheat
thermostat
reset button
(under cover)
On/Off
switch
OVERHEAT
RESET
SYSTEM PRESSURE
HEATING
TEMPERATURE
OVERHEAT
RESET
BOILER
OFF
ON
HEATING
TEMPERATURE
ON
BOILER
OFF
Lock-out
button
Front panel removed
(pull forward at top, then lift off)
Front panel
fixing clips
Front panel bottom locating tags
G
R
A
NT
Mains On
neon
Boiler Passport - The Installer is responsible for completing the boiler passport supplied with this boiler and
returning the paperwork to Grant Engineering (IRL) Ltd.. This appliance must be correctly commissioned in
accordance with the appliance instructions and the details returned to Grant Engineering (IRL) Ltd. using the
address shown on the back of this manual.
Refer to Fig. 23 for boiler controls
Fig. 23 - (Indoor/Utility model shown)
1 Pump
2 Control box
3 Reset button with lock-out lamp
4 Mounting flange with gasket (do not remove from boiler)
5 Air damper adjustment screw
Fig. 22 - Riello RDB burner components
6 Air supply tube connection (balanced flue)
7 Pump pressure adjustment screw
8 Pressure gauge connection
9 Burner fixing nut
Burner components
6.12
7
8
1
23
5
4
6
9
9
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