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Re: Cruisair heat pump control system problem…I think
Sky Cheney
1985 53EDMY, Hull #CN759, "Rebecca"
ELYC on White Lake--Montague, MI
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Re: Cruisair heat pump control system problem…I think
Actually, Sky, I did just that.
I spent today trying to nail down the problem. I started by trying to see if there were any wires that had discontinuities between the thermostat and the PWX box. I didn't find any...
So I dug out the wiring diagrams and was trying to make sense of what I was looking at. I could see a few places where the colors of the wires didn't agree with what was on the diagram, but in one place it looked as though two wires had been swapped. I changed them back to what I saw on the diagram and the system worked (with the one good thermostat I have)!
I believe that the previous owner must have just moved things around trying to get heat out of the system despite the failed thermostat. He put in a timer and set it up so that if the timer called for the system to be on, the system turned on the heat. (Winter - San Francisco)
So, now I know that the system will do what it should with a good thermostat! Since the budget it tight at the moment, I will continue to look for a good (cheap) Honeywell T6052, but may move into the modern age when $$ allow.
Thanks,
Nick1984 53' Extended Deckhouse
"Laissez Faire"
Delivered 1-1-86 (per Sam's)
Hull #CN737
Sausalito, CA
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Re: Cruisair heat pump control system problem…I think
Nick,
Glad you figured it out. If you do go with the FX1, you can remove the PWX box completely and not have to worry about traics and triggers anymore. You can also vary the fan speed and dehumidify and all of that good stuff.
You'll also have spare parts for the other units if you only upgrade one unit at a time.Sky Cheney
1985 53EDMY, Hull #CN759, "Rebecca"
ELYC on White Lake--Montague, MI
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Re: Cruisair heat pump control system problem…I think
All,
As we are still under budget constraints, I have found a NOS Honeywell T6052B thermostat on eBay and installed it. Although it was more expensive than I had hoped, it was still much less than the newer digital controls (that would have been nice to go with).
So, at this point we have the ability to heat and cool...both of which we have needed here in the San Francisco Bay area in the last week!
Thanks for all the help and suggestions.
Nick1984 53' Extended Deckhouse
"Laissez Faire"
Delivered 1-1-86 (per Sam's)
Hull #CN737
Sausalito, CA
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Re: Cruisair heat pump control system problem…I think
Post a picture Nick.
SEVEN
1979 53' MY Hull #563
Antioch, California
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Re: Cruisair heat pump control system problem…I think
Rusty (SEVEN),
As you requested, I am posting a photo.
The new thermostat, installed, and the old (very dead) one leaning against the wall below it.
I don't know what happened to the old thermostat, or where it was when it happened, but the inside looks even worse than the outside does! The panel it was attached to when we purchased the boat looks fine.
Now the system works as it should, but I can't say that I don't feel that the FX1 would be an improvement. (Double negative equals positive, right?)
IMG_7735.jpg
Nick1984 53' Extended Deckhouse
"Laissez Faire"
Delivered 1-1-86 (per Sam's)
Hull #CN737
Sausalito, CA