Here are some plumbing options:
Code:
Factory/stock loop setup is:
SC_hot -> pump -> aux_HX -> HX -> SC_cold
HX is inline with everything, or bypassed, HX flow reversed:
SC_hot -> (3-way/T)--> bypass ---> (3-way/T) -> pump -> IC_Brick -> tank -> SC_cold
\--> HX ------/
HX is inline with everything, or bypassed, stock HX flow direction:
SC_hot -> pump -> IC_Brick -> tank -> (3-way/T)--> bypass ---> (3-way/T) -> SC_cold
\--> HX ------/
HX and IC Brick are XOR, tank is always in flow, stock HX flow direction:
SC_hot -> pump -> (3-way/T)--> IC_Brick --> (3-way/T) -> tank -> SC_cold
\--> HX -------/
HX and IC Brick plus tank are XOR, stock HX flow direction:
SC_hot -> pump -> (3-way/T)--> IC_Brick -> tank --> (3-way/T) -> SC_cold
\--> HX ---------------/
Of course, by changing where you route lines you can reverse the flow through the factory HX if you want or preserve the stock flow direction.
Failure modes to consider would be, what happens if:
- the 3-way valve fails
- you forget to use the 3-way valve switch, and/or
- you forget to turn on the A/C
Depending on how you plumb things, it can be possible that:
- If the default valve position is bypass and you forget to turn on the A/C then the SC will get no cooling whatsoever.
- If the default valve position is non-bypass (HX) the SC will at least get ambient HX cooling--unless you remember to hit the bypass switch but also forget to turn on the A/C (less likely to remember just one and not both).
If you put the chiller brick in the bypass leg, then remembering to turn on the A/C but forgetting to not bypass will result in getting ambient HX cooling.
If you leave the chiller brick always in the flow then remembering to turn on the A/C but forgetting to not bypass will result in getting chiller cooling, but not maximal (the ambient HX will become a relative heat source)--still better than no cooling at all, and still better than just ambient HX cooling.
