Latest Discussions : HVAC

DianeLouise

04:24AM | 01/27/04
Member Since: 01/26/04
4 lifetime posts
This is our first winter in our new home. We have radiant floor heat installed on all three floors with a separate "zone" for each. The thermostats are set at 70 degrees but the house does not heat past 60 degrees. And if you close a door (bedroom), the temperature in that room falls below the 60 degrees. What could the problem be??? Thank you.

DianeLouise

02:59AM | 01/28/04
Member Since: 01/26/04
4 lifetime posts
My husband read your email ... thank you. He adjusted the temperature, so we'll see if that improves the condition. He has another question: As I said, there are three zones. In looking at the pumps (4), three are the same and one is different. The three that are the same are "one cycle" and the other one is a "three cycle". My husband is concerned that he has the pumps hooked up incorrectly .. he thinks the "three cycle" should be the pump located right at the boiler. What are your thoughts? Thx! Diane

DianeLouise

04:44AM | 01/28/04
Member Since: 01/26/04
4 lifetime posts
Not sure if this will help ... can you tell the difference between a single speed and a variable speed pump? And, is there such a thing? (I will check later today on the specific details of the pumps). From what I can remember, they all had L 1/1 and P 1/1 W on them .. three had .55 - 42 and one had three different/ranges of numbers. Again, if this doesn't help, I will check the pumps later and provide more detailed information. Thx!

DianeLouise

06:52AM | 01/29/04
Member Since: 01/26/04
4 lifetime posts
Okay ... here is more detailed information on the pumps (and yes they are Grundfos). All pumps are type 15-42. Three pumps have .74 | 85 on them and one pump has three sets of numbers: .55 | 60; .66 | 80; and .75 | 87. The one pump that has the three sets of numbers is connected to one of the three zones. My husband is questioning whether this particular pump should be the pump connected directly to the boiler/heater or doesn't it matter?

The information that you have provided has been a great help to us. The adjusting of the temperature has improved the warmth of the house drastically ... I am now very comfortable and the temperature is at about 66 degrees. Again, thank you!



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.

Reply choose button

Anonymous

Post new button or Login button
Register