Worcester 87229638580 CDi Series, Greenstar, RD Series and Greenstar ErP Temperature Limiter
Worcester Bosch 87229638580 Temperature Limiter
Suitable for use with the following Worcester Bosch boilers:
- FS 30 LPG
- FS 42 LPG
- 12 i
- 12 i LPG
- 12 Ri LPG
- 15 i LPG
- 15 Ri LPG
- 18Ri LPG
- 24 Ri
- 25 CDi LPG
- 25 Si
- 25 Si LPG
- 27 CDi
- 27 CDi LPG
- 28 i Junior
- 29 CDi Classic
- 29 CDi Classic LPG
- 29 HE CONVENTIONAL
- 30 CDi Classic System
- 30 CDi Conventional
- 30 CDi Conventional LPG
The thermistor increases the circuit resistance as it gets colder.
The printed circuit board sends a current to the thermistor and can tell whether a decrease or increase in heat is needed by the resistance provided by the thermistor.