garage heater


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Old 09-06-19, 11:43 AM
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garage heater

Hi. I have a 5000 watts 240 volts ceiling heater. I had a mechanical thermostat on the wall. Now I want to install a 24 volts transfo( or relay) to be able to control it with a 24 volts thermostat. I just want to know the wires connection between the red and black coming from the panel and the red and black of the relay ( it's a rt850t-347). Thanks for your help.
 
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Old 09-06-19, 12:23 PM
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Sorry. There are 3 wires on relay, a black, red and a blue one.
 
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Old 09-06-19, 05:05 PM
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Welcome to the forums.

The following diagram is what you need to follow............

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Old 09-06-19, 05:18 PM
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Hi, I would double check that relay, I think it is rated for 347 volts if so it won’t work with 240 volts.
Geo
 
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Old 09-06-19, 05:34 PM
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Hi. I think L1 is the black wire and L2 is the red one, don't you think?
 
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Old 09-06-19, 06:19 PM
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You're dealing with 240v...... it doesn't make a difference.
L1 and L2 are strictly illustrating incoming line. If it was 120v it would make a difference.

Geo brings up a good point.
They offer two high voltage models..... a 240 for 208/240v and a 347 for 347v.
I don't know if the 347 will work on 240v. It won't hurt it and if you are only using a two wire stat.... it may work fine.
 
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Old 09-06-19, 07:18 PM
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I will try this set up. thanks.
 
 

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