Original message
| R4global
 |  "Blowing cold air when is an heating"
, posted Mon 21 Jan 19:47  
Hello there,
Maybe someone can help me out, I have 2 package unit on top of a roof on a convenience store, and there are HEIL and has an electric heater in it. One is working fine and the other is blowing cold air in the bathrooms. I went up in the roof and noticed the Condensing fan was running. Even though the thermostat was set on heating in AUTO mode. I have a digital thermostat near the bathrooms and I have a mercury thermostat near the walk in cooler. My question is do you think it is a thermostat problem? Also do you think it gets conflicted if one thermostat is turned up higher than the other, like lets say one at 75 and the other at 68? I guess the reason why some employees turns it up a little is because when customers comes in to the door it brings in cold air.
I did a little test of my own,I switched it to Heat rather than Auto and didn't turned off the condensing fan, with an ohm meter I tested C to R I get 23v and C to y1 and C to G 23v but there no power on W1 or W2 even though its obvious the heat is not running. That is why I am thinking if it is a thermostat problem. There is power on the contactors for the heating. Please help!
RGH
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Replies:
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| R4global
|  "Re(1):Blowing cold air when is an heating"
, posted Wed 23 Jan 22:24
Thank you for your response, but is not a heat pump, is just a 3 ton package unit with an electric heater in it. However, I did another test I jump R to W1 the blower came on and also the heat works, of course will not stay on after I take off the jumper.Also someone suggested that might be the thermostat so I went and got a 2 stage thermostat and that is a 2 stage on heating and 1 on cooling and still will not work.
Any idea?
RGH
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| Houston204
|  "Re(1):Blowing cold air when is an heating"
, posted Mon 21 Jan 20:53
Is it a heat pump? (Heat pumps use and O terminal or a B terminal as well as the Y (compressor) terminal.
"Tip of the Day" Remember to remove power first.
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