Hamworthy Air Pressure Switch (Aps)
The air pressure switch acts as a safety instrument that checks the fan is in full working order. It ensures that, if the fan fails within the boiler, there would not be a build up of noxious gases with no means of venting them. The PCB closely monitors the air pressure switch to make sure it is fully operational before the unit is fired up, preventing the appliance from starting without one of its key safety mechanisms.
HAMWORTHY 533901448 LMU64 PROG. FOR WESSEX MODUMAX 220 NG
Part No: 2062100 / MPN: 533901448
HAMWORTHY 330512511 4.20MM ORIFICE - (P'WELL P80)
Part No: 2060084 / MPN: 330512511
HAMWORTHY 539001072 SPRING EXTENTION WSX100M REF SS5161
Part No: 2062194 / MPN: 539001072
HAMWORTHY 330513519 2.4MM ORIFICE - UR/P'WELL
Part No: 2060124 / MPN: 330513519
HAMWORTHY 562403119 GAS FEED PIPE AND MOUNT ASSEMBLY - WESSE
Part No: 2062402 / MPN: 562403119
HAMWORTHY 530650250 TOP BAR FOR MULTI-CASING
Part No: 2061136 / MPN: 530650250
HAMWORTHY 573409250 AIR PROVING SWITCH
Part No: 2064360 / MPN: 573409250
HAMWORTHY 531101009 ORIFICE - GAS ORIFICE WSX.100M "LPG"
Part No: 2061268 / MPN: 531101009
HAMWORTHY 573409113 AIR PROVING SWITCH
Part No: 2064400 / MPN: 573409113
HAMWORTHY 532012009 TIE RODS - P'WELL 120 - O/ALL LENGTH 700
Part No: 2061484 / MPN: 532012009
HAMWORTHY 532495003 DOUBLE VENTURI (FOR USE WITH PRESSURE SW
Part No: 2061554 / MPN: 532495003
HAMWORTHY 532902013 MAIN JET 3.9 MM DIA - P'WELL.95
Part No: 2061636 / MPN: 532902013
HAMWORTHY 532902044 JET 2.90 MM DIA MADE FROM 532902009
Part No: 2061652 / MPN: 532902044
HAMWORTHY 533901318 AIR PRESSURE SWITCH (DUNGS LGW 3A2.RANGE
Part No: 2062036 / MPN: 533901318
HAMWORTHY 533901334 AIR PRESSURE SWITCH (MODIFIED 533901318)
Part No: 2062048 / MPN: 533901334