Will a sfs1000/7 work with model 59025 solar heater?

Contact grundfos.com
http://waterheatertimer.org/Water-heater-recirculation-system.html

http://waterheatertimer.org/Should-you-buy-solar-water-heater.html

Gene

If you need further help, I’m available over the phone at https://www.6ya.com/expert/gene_9f0ef4df2f9897e7

go into system setup assign the solar to a aux it should work

I had to replace mine a few years ago. Just look on line. Search for pressure relief valve, or add solar. You will get a lot of responses. Comparison shop and buy. On line auctions work well also.

Usually toilets do not require hot water.
Is the plumbing divided into hot and cold water pipes?
If toilets are hooked to hot water, how many flushes and how many gallons per flush per day.
What is the expected consumption per each worker?
What is the latitude from equator, and expected solar input. Further north, and hazy atmosphere reduce input. Beijing has smog I believe.
How often is the solar panel going to cleaned of smog and dirt for maximum collection?
If the area has hard water, then the entire system is prone to sediment build-up and failure unless water is artificially softened.
Solar water heater temperatures can exceed 180 degrees at times. This temperature will damage storage tank that is not made for that temperature.
Most solar water heater systems have pressure regulating valve and expansion tank to accommodate occasional high temperature and pressure.

A good fellow to contact might be at following website:
http://www.builditsolar.com/Projects/WaterHeating/water_heating.htm

Solar collectors are usually connected to a circulating pump, and then the heated water is stored in a tank.
The pump circulates water continually from solar collectors through a storage tank.
This type of system would use ordinary tank-type water heater for storage.
Most of these systems also utilize a back-up heating element inside the tank.

More complicated systems circulate special liquid through spiral tubes inside the water heater.
This type of heater would be an indirect water heater.
Indirect heaters are used for solar collectors, and used with boilers, or any outside heat source.
http://www.bockwaterheaters.com/Products/products_coil_tank_water_heaters.html
http://www.hotwater.com/products/residential/cirrex_solar.html
http://waterheatertimer.org/images/solar-water-heaters-on-roof_lbiRv_5784111-500x282.jpg

GVC means Gas Valve Closed. This fault can be caused by many different problems, or even a faulty gas valve. Here is a link to a PDF file that give a step by step troubleshooting chart. This may help put you on top of the actual problem. http://shop.solardirect.com/pdf/pool-heaters/gas-pool-heaters/raypak-r-series-oim.pdf

You may actually use any pool heater with a solar water heating array. I do not however know about any that come as a package deal. You will need a solar array, a solar controller, a actuating valve to hook to the solar controller, and a new bypass assembley for the plumbing system. All of this is made by manufacturers such as : Jandy, Pentair, Raypak, Lasco, Buderus, Hayward, etc....

they make heat pump pool heaters. it works like an a/c but it heats. only uses electric. http://www.solardirect.com/pool_heaters/heat_pump_pool_heater/hpph.htm

also they have solar panels for pools. another good thing for a pool is a solar cover you just cover it when you are not using your pool.

If you want all your water going thru the solar heater before re-entering the pool, you'll need to plumb the end of your filter to the solar heater, then the water exiting from the solar heater would go where the filter hose did go back into the pool. Hope this helps.

hi,
Dayton thermostat, model 2E215 is a discontinued model....you can repalace for it with a new model but you have to pay some amount to them more.if u need the same product model 2E215 they have to ship it for you.....It works with an old solar heater(you have to ask in the replacement center sir and buy the according product)
thank you,

thank you,(vote for me)
vijay