Rusty or others,
One of the heat pump installation manuals I'm studying says that refrigerant lines can be underground as long as they're placed within a water tight sealed conduit. I'm thinking about this method to go from condenser and then under my foundation (approx. 2-3' depth below condenser pad) and then up the other side into my crawl space. From there it's basicallly a straight run thru the crawl space to the corner of the garage where the air handler/coil is located.
Yea, it's a little more work but it sure looks better and I hate to penetrate outer building walls if I don't absolutely have to.
My concern is the "U" shape line right under the foundation. I thought that refrigerent lines should not have traps where oil can collect. Is this true or not? Should I try and avoid this method or is it really OK?
"Plan B" would route the lines straight thru a nearby foundation vent.
Thanks for the advice.
One of the heat pump installation manuals I'm studying says that refrigerant lines can be underground as long as they're placed within a water tight sealed conduit. I'm thinking about this method to go from condenser and then under my foundation (approx. 2-3' depth below condenser pad) and then up the other side into my crawl space. From there it's basicallly a straight run thru the crawl space to the corner of the garage where the air handler/coil is located.
Yea, it's a little more work but it sure looks better and I hate to penetrate outer building walls if I don't absolutely have to.
My concern is the "U" shape line right under the foundation. I thought that refrigerent lines should not have traps where oil can collect. Is this true or not? Should I try and avoid this method or is it really OK?
"Plan B" would route the lines straight thru a nearby foundation vent.
Thanks for the advice.