Aprilaire 600A from A58 humidstat to old 60 humidistat.
#1
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Aprilaire 600A from A58 humidstat to old 60 humidistat.
I have a similar issue with my Aprilaire 600, and have tried the above wiring, but still cannot get the solenoid going. Here is how it' wired up:
R an C are connected to a 24v transformer on the side of the furnace, which is connected to the power supply 'before' the furnace control.
W is connected to W on the furnace.
I have the R on the humidistat connected to the Solenoid as well.
A jumper from the C to the 'left H on the humidistat, and the 'right' H connected to the other solenoid wire.
There is also a 'Com 24v' terminal on the furnace board. That red wire was previously connected to the 'Cf' on the old 58 Humidistat. now not connected to anything.
W was previously connected to the 'W/G' on the 58.
R an C are connected to a 24v transformer on the side of the furnace, which is connected to the power supply 'before' the furnace control.
W is connected to W on the furnace.
I have the R on the humidistat connected to the Solenoid as well.
A jumper from the C to the 'left H on the humidistat, and the 'right' H connected to the other solenoid wire.
There is also a 'Com 24v' terminal on the furnace board. That red wire was previously connected to the 'Cf' on the old 58 Humidistat. now not connected to anything.
W was previously connected to the 'W/G' on the 58.
Last edited by PJmax; 12-08-22 at 08:29 PM.
#2
Welcome to the forums.
I separated this as your humidistat is not like the A60 as shown in the thread you posted in.
You have an Aprilaire 60 old style.... no A & B terminals.
I separated this as your humidistat is not like the A60 as shown in the thread you posted in.
You have an Aprilaire 60 old style.... no A & B terminals.
Last edited by PJmax; 12-08-22 at 08:33 PM.
#4
Ok.... so the last picture is the humidistat you want to use ?
I don't believe that's an A60. It only has ten terminals.
The A60 has eleven terminals.
I don't believe that's an A60. It only has ten terminals.
The A60 has eleven terminals.
#7
The wiring between the transformer, R and C and the HUM terminals is not polarity sensitive.
The cable/wiring that goes from W and C on the humidistat to W and C on the furnace board must be followed.
The cable/wiring that goes from W and C on the humidistat to W and C on the furnace board must be followed.