We've just been asked to take over the maintenance of a Thermax Hot Water Fired chiller.
Does anyone have any experience with these machines?.
We are going through the motions of checking the vacuum level, refrigerant quality, absorbant concentration etc. but have a problem with the machine not getting down to temperature. The lowest leaving temp is 16C with a hot water temp of 80C. The design is for a hot water temp of 90C. The cooling water inlet temp of 29C is within spec. The machine is not crystallised.
Any ideas?