tirider
24-10-2008, 01:20 AM
In May we had a Sanyo mini split installed in our guest house. It is a concealed duct (Model 26UHW72R) system.
When it was started up, it heated and cooled well. It has not been used much, but I noticed when I turned in on about a month ago, it wasn't cooling very well. After some investigation, I found out that while in cooling mode, the discharge temp from the vents is what ever the thermostat is set at. If you set the thermostat at 72, it puts out 72 degree air. If you set it at 64, it puts out 64 degree air.
On the other hand, when in heating mode, the discharge temps are around 100 degrees, and it works well.
I thought it may be a leak, but when the tech did the start up, it was triple evacuated, and pulled down to 50 microns. I figured with a leak, you would never be able to pull that kind of vacuum.
I have tried to get a hold of Sanyo tech support, but they don't seem to answer. The tech who did the install doesn't do many mini splits, so I may need to find someone in our area who is more familiar with them to help troubleshoot it.
It seems to me that it is some sort of control problem, but I'm not sure, I'm just a general contractor, so this isn't really my area.
Any suggestions would be great.
Thanks.
When it was started up, it heated and cooled well. It has not been used much, but I noticed when I turned in on about a month ago, it wasn't cooling very well. After some investigation, I found out that while in cooling mode, the discharge temp from the vents is what ever the thermostat is set at. If you set the thermostat at 72, it puts out 72 degree air. If you set it at 64, it puts out 64 degree air.
On the other hand, when in heating mode, the discharge temps are around 100 degrees, and it works well.
I thought it may be a leak, but when the tech did the start up, it was triple evacuated, and pulled down to 50 microns. I figured with a leak, you would never be able to pull that kind of vacuum.
I have tried to get a hold of Sanyo tech support, but they don't seem to answer. The tech who did the install doesn't do many mini splits, so I may need to find someone in our area who is more familiar with them to help troubleshoot it.
It seems to me that it is some sort of control problem, but I'm not sure, I'm just a general contractor, so this isn't really my area.
Any suggestions would be great.
Thanks.