Original message
| BKraengel
 |  "Trane 2/4TEE vs Humidity"
, posted Thu 9 Oct 11:45  
All,
On their 2/4TEE Variable-Speed Air Handlers, Trane provides for enhanced humidity control by using an optional humidistat (or by using their pricey communicating comfort control system).
The field wiring diagrams show this optional humidistat wired between terminals R & BK on the fan coil. Question: Do the contacts on the humidistat MAKE when humidity is above setpoint or do they BREAK? I would say they BREAK, but it is not clear if this is how it works.
Bill Kraengel
|
|
Replies:
|
| Jojo98
| "Re(1):Trane 2/4TEE vs Humidity" , posted Thu 9 Oct 14:02
Raise or lower the humidity setpoint, measure voltage across the contacts, or wire terminations. Closed contacts should read 0 volts, open contacts will read secondary voltage.
|
|
|
