Protech

Mind talking about the geo job? I've been interested in geo for a while. None of your competitors can see in the bussines lounge. Well, unless they knew in advance and posted 250 times between now and award.

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Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

ILPlumber

I don't mind. I won't talk $$ till after 2:00 on the 12th

Protech

Fine by me. What is the geo unit for? Commersial, resi? Is it multi purpose? What kind of loop are you going to use?

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Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

ILPlumber

High School. there are 90 wells going to 71 heat pumps. Also 2 - 750,000 btu condensing boilers for those cold days. The heat pumps are all pretty small using either 3/4" or 1" lines. There are also 7 RTU's with 1.5" - 2.5" lines off the loop.

The loop is 6" HDPE fused connections. It holds a butt-load of fluid. I'm presently torn between $4000 worth of methanol and a feed tank for the system or $14,000 for propelyne glycol and a 1" RPZ hooked directly to the loop with PRV and fast fill. $10,000 isn't a terrible amount of money on this job.

Protech

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Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

Protech

one more. what is rtu?

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Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

ILPlumber

Glycol jumps to 25% to have equal heat transfer properties as 15% methanol. Propelyne is a food grade product. Super safe. You can drink it. Ethylene makes you a little bit dead if ingested.

The 6" loop runs around the entire perimeter of the building. Each heat pump has 2 taps. A supply and a return. Each heat pump has it's own pump module to pull fluid out of the loop as needed. Domestic hot is still a stand alone system. 1 100 gallon 199,000 btu WH at each facility with a 500 gallon holding tank.

ILPlumber

roof top unit.

Protech

Interesting. So I guess there is a main circulator pump that moves the main run of the loop?

Doesn't propylene break down after a while and then it needs to be changed? I know that is always a concern when designing an indirect solar system. Maybe it doesn't matter as much in geo do to the mild temps?

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Plumber, Repiping, Replumbing, Leak Detection, Solar Water Heater, Drain Cleaner, Pipe Leak, Polk County Plumber, Lakeland Plumber, Winter Haven Plumber, Haines City Plumber, Bartow Plumber

Ron

Thread bump to show as new thread.

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