Mounting chiller outdoors

[KarlK]

The reason you can't run the chiller outside is that the lower temperatures cause the pressure in the high temperature part of the system to drop. This will not allow the system to maintain the proper pressure difference between the high and low temperature sides of the system to allow the expansion device to operate correctly.

I other words, as the temperature drops, the performance of your chiller will drop.

Chillers have certain design paramaters. These include the assumtion that you will be removing heat from 80-90 degree water and that it will be exhausting heat into a 70 to 90 degree room. When this engineered unit in now put outside when it is 55 degrees (or lower), it is now operating outside of it's design parameters and will no longer function effectively.

One could probably be modified with slightly different controls in order to have it operate reasonably well.

$0.02

Karl