Grant Vortex 50/90 - Commissioning and Boiler Passport; Commissioning Procedure Steps; Boiler Passport Documentation

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Grant Vortex External Module

7 - COMMISSIONING and BOILER PASSPORT

Refer to Fig. 22 for boiler controls

Note: Check that the baffles are in position and

that the cleaning cover is correctly fitted and a

good seal made.

IMPORTANT:

Check that the turbulators are in position and that

the ends are vertical (see Fig. 28).

Note: If the 50/90 model is down-rated to 68,240 or

51.200 Btu/h, or the 120/155 to 123,000 Btu/h the

burner head must be changed. See Section 3.3 and

Sections 9.2 and 9.4.

The Riello RDB 2.2 burner fitted to 50/70 boiler

incorporates a secondary air adjustment shutter located

within the air inlet housing. If the burner is to be

down-rated to the minimum output of 51,200 Btu/h, it

is essential that this internal shutter be correctly

adjusted. To do this proceed as follows:

1. Switch off the boiler and isolate from the electrical

supply.

2. Remove the burner from the boiler.

3. Undo the two screws and remove the air inlet cover

from the side of the burner.

Fig. 22

4. The secondary air shutter disc is factory set in position

‘C’ – i.e. with the cut-out marked C located against

the die-cast boss on the fan housing. See Fig 23.

5. Remove the screw from the centre of the air shutter

disc, and re-position the disc such that the cut-out

‘B’ (see Section 3.3) is located against the cast

boss on the fan housing. Replace the screw in the

centre of the air shutter disc and tighten.

6. Re-fit the air inlet cover to the side of the burner.

7. Change nozzle - Refer to Section 3.3 for correct

nozzle for new output setting.

8. Re-fit the burner to the boiler.

Fig. 23 - 50/70 burner air adjuster disc (shown

set to position 'C')

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.

BOILER ON/OFF SWITCH

ISOLATES PUMP(IF WIRED

INTO BOILER CONTROL

PANEL) & BURNER ONLY.

THIS COVER ISTO BE

REMOVED BYQUALIFIED

PERSONNELONLY

DO NOTREMOVE COVER

WITHOUTISOLATING

SWITCHED LIVEAND

FROST'STAT

PERMANENTLIVE

TESTSWITCH

OVERIDES SYSTEM

CONTROLSTO

OPERATE BOILER

‘Lock-out’ reset button

Boiler front

panel removed

Control Panel

DANGER

THERE IS MORE THAN ONE LIVE SUPPLY TO

THIS CONTROL PANEL

BOILER

OFF

OVERHEAT

RESET

TEST

SWITCH

OFF

HEATING

THERMOSTAT

ON ON

REFER TO WIRING DIAGRAM IN MANUAL

Overheat thermostat

reset button

(under screw cover)

Boiler

thermostat