What is the maximum working pressure of the Wessex range?
- Wessex ModuMax mk3 boiler
The maximum pressure rating of the Wessex is 10bar.
This pressure is the maximum pressure that the boiler can be subjected to, or in effect the maximum lift pressure rating of the boiler safety valve.
So to allow for a pressure buffer range of 0.7-0.8bar the maximum "working pressure" would be 9.2-9.3bar.