Hi,

I work in the Aviation industry. We have a 2.7KW cooling unit, containing R245fa. We have a Chillguard RT leak monitor which is independent of the system.

The Chillguard started beeping yesterday, so the system was shut down, and valves closed as a precaution, whilst further leak checks were carried out. The system is in a relatively confined space, so I really need to be sure it isn't leaking.

We have a hand-held leak detector which is calibrated for R134a, which we have been told will detect R245fa. We powered up the system again carried out checks using the hand-held detector, but found nothing, even though the Chillguard was detecting a leak.

Have we been given good information (the R143a detector is capable of detecting R245fa), or do we have a fault in our Chillguard system?

I am an Aircraft technician by trade, but also cover H&S/EP aspects, so I just need to make sure we are not being negligent.

Many thanks,

Chris.