Hi all---hoping to get some some opinions and real-world feedback.
2500 sqft home in Alabama with a 3-ton 2-stage cooling ICP/Comfortmaker heat pump with multi-speed fan air handler, communicating with Observer t-stat.
Unit is 7 years old, plagued with issues. Under warranty, have replaced A-coil due to leaks, replaced entire condenser unit 2 years ago. Current condenser unit is having issues again, and manufacturer wants to replace the whole unit again and return for diagnostics. Due to COVID and backlog, there are no units available to replace mine under warranty, and it's unknown when they will be produced again. Parts aren't available for months. The best my installer has been able to do for me is to secure me a 2-stage 16 SEER non-communicating condenser unit, which will require me to change the air handler to a non-communicating unit as well as a new t-stat as out of pocket expenses. I have made my peace with that, as I'm quite over the issues that we have had with this unit. The complexity of the communicating unit has required factory assistance every time to diagnose. I'm looking at swapping brands and starting anew. I'm set on wanting a 2-stage cooling unit, as anything less seems like too much of a downgrade in efficiency. I think I want a multispeed fan air handler over a variable speed, just for compatibility with non-proprietary t-stats.
Here's my dilemma:
Extremely high humidity conditions in my region, combined with a spray foam insulated house has me concerned about relative humidity inside my home. We went originally with a communicating multistage unit to effectively dehumidify without a standalone dehumidifier. Is there a non-communicating thermostat out there with a humidistat or a humidity setpoint that will work with a two-stage heat pump with a multi-speed fan? Is the only way that one can expect to achieve a setpoint for humidity is with a communicating setup? I've lurked here long enough to know there are several people that are very vocal against the Nest t-stat. I like it and want to use it, but it doesn't appear to have anything resembling a humidity setting. Nest gen3 advertises support for multistage cooling as well as multi-speed fans over single wire or several wires. Do any other wi-fi capable t-stats (Honeywell, ecobee) have more features when it comes to dehumidification? Tl;dr can you truly set humidity without a communicating system or a system without a standalone dehumidifier? Thanks for any help/insight
2500 sqft home in Alabama with a 3-ton 2-stage cooling ICP/Comfortmaker heat pump with multi-speed fan air handler, communicating with Observer t-stat.
Unit is 7 years old, plagued with issues. Under warranty, have replaced A-coil due to leaks, replaced entire condenser unit 2 years ago. Current condenser unit is having issues again, and manufacturer wants to replace the whole unit again and return for diagnostics. Due to COVID and backlog, there are no units available to replace mine under warranty, and it's unknown when they will be produced again. Parts aren't available for months. The best my installer has been able to do for me is to secure me a 2-stage 16 SEER non-communicating condenser unit, which will require me to change the air handler to a non-communicating unit as well as a new t-stat as out of pocket expenses. I have made my peace with that, as I'm quite over the issues that we have had with this unit. The complexity of the communicating unit has required factory assistance every time to diagnose. I'm looking at swapping brands and starting anew. I'm set on wanting a 2-stage cooling unit, as anything less seems like too much of a downgrade in efficiency. I think I want a multispeed fan air handler over a variable speed, just for compatibility with non-proprietary t-stats.
Here's my dilemma:
Extremely high humidity conditions in my region, combined with a spray foam insulated house has me concerned about relative humidity inside my home. We went originally with a communicating multistage unit to effectively dehumidify without a standalone dehumidifier. Is there a non-communicating thermostat out there with a humidistat or a humidity setpoint that will work with a two-stage heat pump with a multi-speed fan? Is the only way that one can expect to achieve a setpoint for humidity is with a communicating setup? I've lurked here long enough to know there are several people that are very vocal against the Nest t-stat. I like it and want to use it, but it doesn't appear to have anything resembling a humidity setting. Nest gen3 advertises support for multistage cooling as well as multi-speed fans over single wire or several wires. Do any other wi-fi capable t-stats (Honeywell, ecobee) have more features when it comes to dehumidification? Tl;dr can you truly set humidity without a communicating system or a system without a standalone dehumidifier? Thanks for any help/insight
source https://hvac-talk.com/vbb/showthread.php?2222813-New-System-Advice-Transition-to-Non-Communicating-Heat-Pump&goto=newpost
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