Prestige IAQ on Two Step Compressor w/ Variable Speed Furnace
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Prestige IAQ on Two Step Compressor w/ Variable Speed Furnace
Looking for help with wiring Honeywell Prestige IAQ with two step scroll compressor with variable speed furnaces.
I have two different systems. Upstairs unit is a 2 ton unit, Downstairs is a 4 ton unit.
I made the diagrams with the Honeywell EIM pictured, but right now I have Ecobee's on the units.
Basically would like verification to the way they SHOULD be hooked up with the Honeywell EIM's.
Condenser - American StadardAllegiance 16 4a7a60 4 ton unit downstairs
2 ton upstairs.
Furnace - Freedom 80 Comfort R VS on both units.
the upstairs 2 ton unit is wired as Diagram #2 shows.
https://www.amazon.com/photos/share/...mJGrdVFK37S5Kb
Furnace DD100R9V3 dipswitches set to 2 ton( 1off, 2on) , CFM set to 400cfm per ton (3off,4off) , Comfort R On ( 5on, 6on), Heating at Normal (7on, 8off)
The Downstairs unit would be wired as Diagram #1 is shown
https://www.amazon.com/photos/share/...MXYCO23zMAeQND
Furnace DD100R9v5 dipswitches set to 4 ton (1on,2off), CFM set to 400cfm per ton (3off, 4off), Comfort R On (5on,6on) , Heating at Normal (7on, 8off).
I would like to setup Dehumidfy on Demand on the downstairs unit. Could I do a Diagram #3?
Could I do the same upstairs by hooking up U1 to the BK terminal ?
Also, could anyone explain to me why the R to O jumper is installed on both systems?
Thanks.
I have two different systems. Upstairs unit is a 2 ton unit, Downstairs is a 4 ton unit.
I made the diagrams with the Honeywell EIM pictured, but right now I have Ecobee's on the units.
Basically would like verification to the way they SHOULD be hooked up with the Honeywell EIM's.
Condenser - American StadardAllegiance 16 4a7a60 4 ton unit downstairs
2 ton upstairs.
Furnace - Freedom 80 Comfort R VS on both units.
the upstairs 2 ton unit is wired as Diagram #2 shows.
https://www.amazon.com/photos/share/...mJGrdVFK37S5Kb
Furnace DD100R9V3 dipswitches set to 2 ton( 1off, 2on) , CFM set to 400cfm per ton (3off,4off) , Comfort R On ( 5on, 6on), Heating at Normal (7on, 8off)
The Downstairs unit would be wired as Diagram #1 is shown
https://www.amazon.com/photos/share/...MXYCO23zMAeQND
Furnace DD100R9v5 dipswitches set to 4 ton (1on,2off), CFM set to 400cfm per ton (3off, 4off), Comfort R On (5on,6on) , Heating at Normal (7on, 8off).
I would like to setup Dehumidfy on Demand on the downstairs unit. Could I do a Diagram #3?
Could I do the same upstairs by hooking up U1 to the BK terminal ?
Also, could anyone explain to me why the R to O jumper is installed on both systems?
Thanks.
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So Ylo would call for 50% speed but since these units want 80% and 100% the Y calls for 80% and the BK calls for 100% blower speed? So for the dehumidify on demand, removing the power from BK would drop it back down to 80%? Also from what I've been reading, the energizing O from R ... O activates the blower profiles? So energizing O would Turn the Comfort R ramp profile on? I appreciate all the help Houston! Trying to understand the Terminals better and how they affect the blower speeds.
#5
In low speed it would be even lower.
If the airflow is too low the compressor will end up trying to compress liquid refrigerant.
That would result in early compressor failure.
If the airflow is too low the compressor will end up trying to compress liquid refrigerant.
That would result in early compressor failure.