Hello gentlemen,
Recently I bought a house (the former owner is deceased) with a heat pump central and water heating. Unfortunately I don't seem to find any clues about the brand of the unit and therefore I'm lacking an instruction manual. My HVAC technician did a periodical coolant check for quantity and leakage but he's not willing to make any adjustments until he gets a manual. Adjustments however are necessary because the unit doesn't defrost at all. He says he needs to know the function of unmarked DIP switches and description of menu parameters to set it up properly etc etc.
Why am I asking here? Because here in Czechia, heat pumps aren't as common as in the US. Therefore these older units usually weren't bought from a local dealer but were rather shipped out directly from China (I guess). I am hoping that some of you might have came across a unit such is this. I've already tried google and if comes up with a Sprsun 10,5kW unit. Unfortunately Sprsun claims this is not their product. As I understand, there are many heat pump manufacturers in China, copying from each other. The unit is single phase with Copeland Scroll compressor.
I talked to a neighbor and he says that the guy who lived here was using the thing but at the moment it froze up he just switched to a furnace until the ice melted on its own. :D I think it has never been serviced before.
Pictures are attached.. Thanks
Recently I bought a house (the former owner is deceased) with a heat pump central and water heating. Unfortunately I don't seem to find any clues about the brand of the unit and therefore I'm lacking an instruction manual. My HVAC technician did a periodical coolant check for quantity and leakage but he's not willing to make any adjustments until he gets a manual. Adjustments however are necessary because the unit doesn't defrost at all. He says he needs to know the function of unmarked DIP switches and description of menu parameters to set it up properly etc etc.
Why am I asking here? Because here in Czechia, heat pumps aren't as common as in the US. Therefore these older units usually weren't bought from a local dealer but were rather shipped out directly from China (I guess). I am hoping that some of you might have came across a unit such is this. I've already tried google and if comes up with a Sprsun 10,5kW unit. Unfortunately Sprsun claims this is not their product. As I understand, there are many heat pump manufacturers in China, copying from each other. The unit is single phase with Copeland Scroll compressor.
I talked to a neighbor and he says that the guy who lived here was using the thing but at the moment it froze up he just switched to a furnace until the ice melted on its own. :D I think it has never been serviced before.
Pictures are attached.. Thanks
source https://hvac-talk.com/vbb/showthread.php?2223782-A-no-name-Heat-Pump&goto=newpost
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