Hamworthy Wessex ModuMax mk3 WM97/97H Installation, Commissioning And Servicing Instructions page 26

Figure 7.2.2 - Venturi & Gas Valve (97/116/147 shown)
Fan
Venturi
Gas
Valve
Figure 7.2.3 - Hot Surface Igniter Check (196/ 254 shown with air filter removed)
Flame Signal Assessment
HAMWORTHY HEATING LTD
Air inlet Filter
Wessex ModuMax mk3 Boilers
WARNING: WHEN THE FRONT
COVER AND AIR FILTER ARE
REMOVED AND THE BOILER IS IN
OPERATION, IT IS POSSIBLE FOR
ARTICLES OF CLOTHING OR
LONG HAIR TO BE DRAWN INTO
THE VENTURI / FAN.
20
500001308/C