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I have a solar collector evacuated tube system, it calls for…

Customer Question
I have a solar...

I have a solar collector evacuated tube system, it calls for a thermostat temp prob pushed into the outside heat sorce.... I need to know were the two workers hook up to on a Taco SR501 switching relay , 1 zone unit...thank you in advance...

Contractor's Assistant: Did you double-check the thermostat's settings? And what about the filters?

Well I am still building the system almost done except the wiring...I do have a thermostat up stares... an I need a thermostat outside on heat s orce, need to know were to connect thermester workers on the switching board in the Taco sr501 electrical unit...

Contractor's Assistant: Do you plan on doing the work yourself?

It's all done just the wiring left

Contractor's Assistant: Anything else we should know to help you best?

It's for indoor worsbo heat tubes, the pumps are in the basement

Submitted: 2 months ago.Category: HVAC
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Answered in 27 minutes by:
12/12/2017
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago
Rick
Rick, HVAC Supervisor
Category: HVAC
Satisfied Customers: 23,395
Experience: 40+ yrs. experience as a licensed oil & gas technician.
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Welcome to Just Answer, my name is ***** ***** I will do my best to help you with your issue. If my initial response doesn’t answer your question then let me know and we can continue our conversation.

You can't use an SR501 for this purpose. You need a differential solar controller and a holding tank with a second sensor

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Customer reply replied 2 months ago
The solar collector has a water storage built in. An a built in hole to insert a thermester prob. I figured a 80 degree for closing the resister. Sending signal to taco switching relay, that heat is present. Need it because when sun goes down no heat will be produced. An thermester will open an stop signal to switching relay... i meed to know how to hook this into the relay of my taco... if you say it will work...thanks
HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

You can't use a thermistor with an SR501.

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HVAC Technician: Rick, HVAC Supervisor replied 2 months ago

If the sensor well is compatible (1/2" NPT) you can us a single aquastat Like a honeywell L4006 and connect it to TT/RW on the SR501

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