water source heat pumps

Unknown

does anyone know what the course entails? is it basic or advanced? i havent been able to get through to the RPA.

[Deleted User]

water source heat pumps and cooling towers

Does any one know of any good trade references for maintaining water source heat pumps and cooling towers?

RJ_4

heat pumps

(1) Each heat pump should have a flow switch, a wye strainer and a circut setter.
(2)Loop temp. should be between 75 to 78 degrees.
(3)Make sure you have some type of Boiler by-pass or primary secondary system to keep boiler temp. above 140 degrees. Bell&Gosset has a good piping diagram.
(4)Set flow rate at 3gpm per ton.
(5)Water treatment- Treat sump of tower(fluid cooler) with algaecide and scale inhibitor. (get a water teatment company).
(6)Control of loop temp. is accomplished by cycling tower spray pump,fans(reccomend a VFD). and the boiler.There is propably a new contol on the market as we speak. Try a company called HEAT TIMER.
(7)Check with the tower manufacturer for P/M.
(8)Keep the loop temp. at 75 and the air filters clean .

hot_rod

Tune in for Mr. Eathertons online heat pump seminar, 6/6

details at www.radiantpanelassociation.com. This Wed.

I'm sure you will learn a lot about hp's and installation tips.

hot rod

mtfallsmikey

Can't stress water treatment and filtration enough

Especially if you are in an area with lots of new construstion, dust, (and an international airport nearby like I have!). According to one water treatment company here in the D.C. area, the most common foreign matter that winds up in towers in the downtown area the most is brake pad/shoe dust! Cooling towers are very efficient air scrubbers! A plate-type HX, mainstream/sidestream centrifugal separator will go a long way to prevent fouling. And, check with your water treatment co. about using a dispersant along with the rest of the chemical mix.

singh

closed loops

eliminate the filtration and treatment and wye strainers and flow meters etc....
annual maintenance should check the glycol % in a closed loop.


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Dave Yates (GrandPAH)_1

Can't wait!

We've got four systems in the pipeline. Two that incorporate radiant + A/C, one with radiant, A/C & solar (both PV and hydronic) & one that is strictly air.

Another exciting chapter in the book of mechanical contracting.

I'm planning on being a sponge during ME's presentation tonight.

don_192

I hope

the teacher gets into dx geo system as well.Check the efficency of the dx geo verse the water geo.You'll be surpise.

No waterside issue to even worry about.

Brent_2

water source heat pump

Every water source (boiler/tower) heat pump job I have been involved with has been designed for 70° for winter and 90° in summer.