Hi guys,

I've just been going throught a old book and got to a section on pressure testing procedures.
The book says;

"if necessary, remove or blank any low pressure components or sensitive equipment that might be damaged by the pressure test"

Can anyone tell me what they might be, how to blank or remove them and when is this necessary?

Also, the book says;

" the system should be tested to a pressure 10% above the systems maximum running pressure"

How do I find out the maximum running pressure?
Is it stated somewhere on the outdoor unit?

Oh, Brian.

I dont have any donuts but i do have jammy dodgers