Afternoon guys,

Just a query as have no paperwork on site.

Today looking after some McQuay screw chillers serving a hospital, critical plant and situated in a compound on the roof with bad air recirculation.

Currently both 100% running their little hearts out 6.3 degree split in and outlet water temps on both, in at 16.6 and off at 10.2 mixed water temps at 11.6.

Now checking the pull down rates they’re currently on 1.4 degree per minute.

What’s a safe pull down rate without compromising the chillers?

Thanks in advance