Is there max distance from the house to the loop field? I'm installing a 3 ton system using (3) horizontal (Supply and return separate) fields at 250' straight lines, 6' deep (No coil). My distance is approx. 200' with 20% slope. Also, should the lines be separate (Supply and Return) from end of field to house?
You need to get a friction loss chart, and get comfortable with " feet of head, and pump curves " Eric
So 500' total pipe per circuit (3 circuits) and 200' of header pipe. What size of pipe for the loop field and header pipe? How many pumps are on the flow center? What is the model number of the pump(s). The slope does not matter in close system. Best if you draw a sketch of the loop field and the trench going to it, and the pipe lengths and pipe sizes. You only need 9 gpm for a 3 ton system, should be easy to pump. Modern loop fields are designed for low pressure drop so pumping is easy and energy efficient.
Actually, 200' per each trench (Supply 100', Return 100') with a total of (3) trenches 600' on level ground. From there... 200' (20% slope) length of all (6) pipes going to house. Pump is a Geo-Pulse, it doesn't say much about the gpm on the unit.
How far do you keep the lines apart in the 200" header trench? The 3 x 200 will unlikely support a 3 ton system. Again the question what size pipe do you plan to use?
