Tweet
Hello. There is some great info on these forums, but I have a few unanswered questions about installing a chiller. I am hoping someone here with more knowledge can point me in the right direction on some of the questions below. See attached for a rough diagram of what I have planned. Note the secondary chiller location inside the unit. I am hoping to have two spots, one outside in the summer and one inside in the winter to A) keep heating costs down and B) avoid spending $$$$ on the low ambient package. Both spots will be piped and valved off accordingly. Any potential issues with this plan? The chiller is easily moved with a forklift.
Here is where I am...
-In possession of a 34 ton McQuay (AGZ034BS) chiller
-Awaiting manufacturing of 2 x 130 BBL insulated and jacketed FV's (flow rate = 2.1 - 3.2 gpm with a 3 PSI pressure drop, 3/4" inlet and outlet connections)
-Still deciding on what to do about a brite tank, leaning torwards a 60 BBL refurbished dairy tank, insulated and jacketed
Questions I am still trying to figure out...
-What size supply and return headers should I use? I would like to use PVC schedule 80 to keep the cost down.
-Can I use pex to go from the headers to the tanks (the tank connections may be as far as 10-20' from the headers due to the layout of the space and the height of the tanks)? I assume it should be 3/4" to match the inlet/outlet sizes?
-How should the pex be supported? I was told that PVC is required by code to be supported every 6 feet, not sure about pex though.
-What pressure for the pressure relief valve?
-What size storage tank?
-What size pumps? Centrifugal I assume?
Link to download design layout and pictures (too big to attach here): https://www.dropbox.com/s/2d5a3gjlbp...l%20Design.pdf
Thanks everyone.
Here is where I am...
-In possession of a 34 ton McQuay (AGZ034BS) chiller
-Awaiting manufacturing of 2 x 130 BBL insulated and jacketed FV's (flow rate = 2.1 - 3.2 gpm with a 3 PSI pressure drop, 3/4" inlet and outlet connections)
-Still deciding on what to do about a brite tank, leaning torwards a 60 BBL refurbished dairy tank, insulated and jacketed
Questions I am still trying to figure out...
-What size supply and return headers should I use? I would like to use PVC schedule 80 to keep the cost down.
-Can I use pex to go from the headers to the tanks (the tank connections may be as far as 10-20' from the headers due to the layout of the space and the height of the tanks)? I assume it should be 3/4" to match the inlet/outlet sizes?
-How should the pex be supported? I was told that PVC is required by code to be supported every 6 feet, not sure about pex though.
-What pressure for the pressure relief valve?
-What size storage tank?
-What size pumps? Centrifugal I assume?
Link to download design layout and pictures (too big to attach here): https://www.dropbox.com/s/2d5a3gjlbp...l%20Design.pdf
Thanks everyone.