David Meiland Posted March 30, 2016 Report Posted March 30, 2016 Not sure this question can be answered with the information I have, but... Saw this outdoor unit at a house apparently built in 1971. The owner was surprisingly vague about what it did--thought it might be an air conditioner and seemed to remember running it as one many years ago, and also thought that perhaps it was supposed to work for heating, although he didn't think it did, and it definitely didn't when I was there. It's almost inconceivable for someone here to want air conditioning, it's just not hot enough. However, the owner shared with me that the upper level of the house got extremely hot in summer, and they had HUGE west-facing glass, on the waterfront. AND, the indoor coil was installed as a separate unit downstream of the furnace, so it might have been added on to the system sometime after initial construction. So maybe someone decided--after building a house that overheats in summer--to add A/C and here it is. Click to Enlarge 54.08 KB Click to Enlarge 50.69 KB Click to Enlarge 63.4 KB
Les Posted March 30, 2016 Report Posted March 30, 2016 That sure looks right to me. I had a unit like that in northern Michigan for many years.
Steven Hockstein Posted March 30, 2016 Report Posted March 30, 2016 It is an obsolete air conditioning unit. Even if it is working, it is so inefficient that when it runs you can use the electric meter as a fan.
mjr6550 Posted March 31, 2016 Report Posted March 31, 2016 I have seen hundreds of those old York units. They lasted a long time. I don't recall seeing units with two fans.
David Meiland Posted March 31, 2016 Author Report Posted March 31, 2016 Sorry for being unclear about my question. Looking for confirmation that this is NOT a heat pump for heating and cooling, and is only for cooling. If so, probably the only one in the county (except at the grocery store).
Marc Posted March 31, 2016 Report Posted March 31, 2016 I see nothing that would suggest a heat pump. My favorite method is to look for reversing valves. I also chk filter/dryers because more than once I've found a label that indicated heat pump but the reversing valve had been removed and the filter/dryer wasn't bi-directional. This has happened on old units where heat mode was troublesome and techs would just remove the valve and set up emerg heat as primary heat. Marc
Jim Katen Posted March 31, 2016 Report Posted March 31, 2016 Sorry for being unclear about my question. Looking for confirmation that this is NOT a heat pump for heating and cooling, and is only for cooling. If so, probably the only one in the county (except at the grocery store). Aside from a reversing valve, look at the control wiring. If there are only two wires, it can't be anything more than an AC unit. If there are 5 wires or more, then it's a heat pump.
mjr6550 Posted April 1, 2016 Report Posted April 1, 2016 M.N. CM60 matches York numbers from the late 60's to early 70's. I tried to rear the label and it looked like maybe CM90. I did not see that model listed. The rated amperage is high so it is a large inefficient unit.
Jim Katen Posted April 1, 2016 Report Posted April 1, 2016 That's the first AC data plate I've ever seen that doesn't list the minimum circuit ampacity and the maximum fuse or breaker size.
Rob Amaral Posted April 2, 2016 Report Posted April 2, 2016 Sort of looks like a refrigeration unit.. no??
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now