Discuss Safety checks? in the Plumbing Jobs | The Job-board area at PlumbersForums.net
On an oil combi, away from the burner and oil supply, I always check expansion vessel charge and pressure relief valve activation. Even if it wont reseat and I have to fit a new one.
Manually.
With respect, how is that "testing"?. A proper test, if you are going to do it, IMO, is to make sure the valve opens at the required pressure. (Although I dont do oil, just gas). Personally, I don't - there is way too much chance of the valve not seating and causing a repair, or worse, a call back. I don't know about oil boiler PRV's but gas ones are generally make/model specific, reasonably expensive, and can be a real pain to change.
Manual is better than ignoring because you cant be ar$ed to fix it.
Its just making sure it lifts and has not been manufactured incorrectly or seized in place.
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