Bryant Thermidistat T6-PRH-A - Manual (Page 33)

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the period or minutes and then use the UP/DOWN buttons to change to the
desired value.
2 — The dry contact will operate as a DH relay. This relay is reverse logic. When
the humidity level is above the dehumidify setpoint, the dry contact D1--D2 will
be opened. When the humidity level is below the dehumidify setpoint, D1--D2
will be closed. There is a +/-- 2% hysteresis around the dehumidify setpoint to
prevent rapid on/off cycling of the DH output. When configured for
dehumidification, the Rc terminal must be connected to one of the dry contact
terminals. This provides power to energize the dehumidify terminal on the
cooling equipment when the dry contact is closed. See Wiring Diagrams for
more information.
Default is OF (off).
Option 19 — Dry Contact Configuration (non--programmable models only)
OF — The dry contact is always de--energized.
ON — The dry contact will operate as a DH relay. This relay is reverse logic.
When the humidity level is above the dehumidify setpoint, the dry contact
D1--D2 will be opened. When the humidity level is below the dehumidify
setpoint, D1--D2 will be closed. There is a +/-- 2% hysteresis around the
dehumidify setpoint to prevent rapid on/off cycling of the DH output. When
configured for dehumidification, the Rc terminal must be connected to one of the
dry contact terminals. This provides power to energize the dehumidify terminal
on the cooling equipment when the dry contact is closed. See Wiring Diagrams
for more information.
Default is OF (off).