macplee
New Member
Just bought this house with the Navien CH240. When outside temp drops to the teens or single digit, the 1st floor could only reach 60-65 max.
Here are more info:
The thermostat works fines
This is a 3 story house with 3 zones (one zone per floor).
Dip switches set to 180 by previous owner/plumber.
One very troubling thing and potential problem I noticed is that one room on the 3rd floor is tied to the first floor zone. But just this one room. The plumber won't believe me and tells me that even if that was the case, 1st floor zone should still heat just fine. But I read somewhere about split loop and how the hot water could be going to the path of least resistance and could potentially loop around that path (3rd floor). I am afraid that split loop path may be the 3rd floor room that's tied to the 1st floor because that room stays nice and warm even when the 3rd floor zone is turned off.
Also notice the dip switch #4 is not up or down, but kind of in the middle. Figured I would get some advice first before I touch anything.
Any help? The plumber who installed this system is extremely unresponsive.
Here are more info:
The thermostat works fines
This is a 3 story house with 3 zones (one zone per floor).
Dip switches set to 180 by previous owner/plumber.
One very troubling thing and potential problem I noticed is that one room on the 3rd floor is tied to the first floor zone. But just this one room. The plumber won't believe me and tells me that even if that was the case, 1st floor zone should still heat just fine. But I read somewhere about split loop and how the hot water could be going to the path of least resistance and could potentially loop around that path (3rd floor). I am afraid that split loop path may be the 3rd floor room that's tied to the 1st floor because that room stays nice and warm even when the 3rd floor zone is turned off.
Also notice the dip switch #4 is not up or down, but kind of in the middle. Figured I would get some advice first before I touch anything.
Any help? The plumber who installed this system is extremely unresponsive.