A tech came over to my house today and spent 5 hours trying to integrate a dehumidifier with a zoned system.
He was frustrated. I was frustrated. He worked hard but was unable to get it to work. Speaking of which... what's up with people refusing to call the manufacturer to ask for technical support?
Long story short: we have two communicating thermostats (Daikin One+) connected to a zoning panel (UltraTalk 3000) that is then connected to a Daikin DZ20VC system. The dehumidifier model is DV070. Everything but the zoning panel comes from Daikin (and the former is pretty much designed to work exclusively with their stuff). You'd think it would all just work together, but no.
The goal is to:
1. If the humidity level at either thermostat is too high,
2. And the compressor is off (neither thermostat is heating or cooling)
3. Then turn on the HVAC fan and start dehumidifying
So, we configured the thermostats to trigger AUX1 if the humidity level is too high and they are not heating or cooling. Two problems:
1. Each thermostat ignores whether the other thermostat is heating or cooling (they trigger the dehumidifier when they should not)
2. The dehumidifier starts running, but the HVAC fan does not.
Clearly, the zoning panel should get involved. So we call the guy who developed the thing and in spite of the technical manual mentioning dehumidifier support... guess what? It does not actually support dehumidifiers. The guy claims that the ClimateTalk protocol does not support it. Beats me whether that's true or not because https://github.com/kdschlosser/ClimateTalk claims otherwise.
Long story short: I paid thousands of dollars for a dehumidifier that is incompatible with my system and I have no idea if there is even such a thing as a dehumidifier compatible with my setup :(
The dealer keeps on trying to talk me into accepting the dehumidifier running at the same time as A/C and I'm not having any of it. They made me pay extra for a backdraft damper (to prevent air from flowing backwards from the supply to return duct) when frankly this is *required* for this kind of installation (who in their right mind would allow backdraft to occur?
I guess if I had to accept a workaround, I would accept the dehumidifier running at the same time as the compressor (allow one thermostat to ignore the mode of the other) but I absolutely need the dehumidifier to trigger the HVAC fan to run to avoid a backdraft. The thermostat lets you configure what fan speed to trigger when the dehumidifier comes on so this absolutely should be working... Unfortunately their techs refuse to talk to end-users and the dealer is reluctant to reach out to them.
Me = frustrated. This is not acceptable for the amount of money I am paying...
Any advice?
He was frustrated. I was frustrated. He worked hard but was unable to get it to work. Speaking of which... what's up with people refusing to call the manufacturer to ask for technical support?
Long story short: we have two communicating thermostats (Daikin One+) connected to a zoning panel (UltraTalk 3000) that is then connected to a Daikin DZ20VC system. The dehumidifier model is DV070. Everything but the zoning panel comes from Daikin (and the former is pretty much designed to work exclusively with their stuff). You'd think it would all just work together, but no.
The goal is to:
1. If the humidity level at either thermostat is too high,
2. And the compressor is off (neither thermostat is heating or cooling)
3. Then turn on the HVAC fan and start dehumidifying
So, we configured the thermostats to trigger AUX1 if the humidity level is too high and they are not heating or cooling. Two problems:
1. Each thermostat ignores whether the other thermostat is heating or cooling (they trigger the dehumidifier when they should not)
2. The dehumidifier starts running, but the HVAC fan does not.
Clearly, the zoning panel should get involved. So we call the guy who developed the thing and in spite of the technical manual mentioning dehumidifier support... guess what? It does not actually support dehumidifiers. The guy claims that the ClimateTalk protocol does not support it. Beats me whether that's true or not because https://github.com/kdschlosser/ClimateTalk claims otherwise.
Long story short: I paid thousands of dollars for a dehumidifier that is incompatible with my system and I have no idea if there is even such a thing as a dehumidifier compatible with my setup :(
The dealer keeps on trying to talk me into accepting the dehumidifier running at the same time as A/C and I'm not having any of it. They made me pay extra for a backdraft damper (to prevent air from flowing backwards from the supply to return duct) when frankly this is *required* for this kind of installation (who in their right mind would allow backdraft to occur?
I guess if I had to accept a workaround, I would accept the dehumidifier running at the same time as the compressor (allow one thermostat to ignore the mode of the other) but I absolutely need the dehumidifier to trigger the HVAC fan to run to avoid a backdraft. The thermostat lets you configure what fan speed to trigger when the dehumidifier comes on so this absolutely should be working... Unfortunately their techs refuse to talk to end-users and the dealer is reluctant to reach out to them.
Me = frustrated. This is not acceptable for the amount of money I am paying...
Any advice?
source https://hvac-talk.com/vbb/threads/2228270-Nightmare-dehumidifier-installation?goto=newpost
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