Tekmar 370 RTU 055 problem


Old 03-05-11, 03:17 AM
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Tekmar 370 RTU 055 problem

Yesterday I turned on an in-floor heating system using Tekmar 370 RTU 054 (Zone 4) RTU 055 (Zone 3). Zone 4 is working perfectly. Zone 3 passes all the tests and runs for an additional few minutes but then switches off.

As the other combinations are working I suspect the RTU 055 is faulty. Can anyone advise on getting the system working? Or can an alternative thermostat be used (The 370 and RTU 055 are no longer available)? If, for the 370, it is simply opening and closing a circuit is there a generally available unit that could replace it?

Update: I switched zones on the 370 and determined it is the zone 3 controller on the 370.

Last edited by jwwbrennan; 03-05-11 at 04:21 AM.
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Old 03-06-11, 06:34 AM
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I am going to move you over to the boiler section since I've never been around this system before.
Old 03-07-11, 04:02 AM
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Room temperature unit 054 (replaces tekmar 055)
Old 03-07-11, 03:09 PM
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I don't see either the 54 OR 55 listed anymore on Tekmar's newly re-designed website.

hvactech, what does your post mean?
Old 03-07-11, 03:46 PM
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