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terminal on the cooling equipment when the dry contact is closed. See Wiring
Diagrams for more information.
Default is OF (of f).
Option 19 — Dry Contact Configuration (non--programmable models only)
OF — The dry contact is always de--energized.
ON — The dry c ontact will operate as a DEHUM 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 DEHUM 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 (of f).
Option 20 — Outdoor Air Temperature Offset Adjustment
This selection allows the calibration, or deliberate miscalibration of the outdoor
air t emperature sensor reading. The selection ranges from --5 to +5_F.
Default is 0.
Option 21 — Keypad Lockout (programmable models only)
This selection allows the installer to limit access to the keypad. Selections are OF
(off), 1, 2, 3.
OF (of f) — The user has full access to the keypad.
1 — The user has access to modify setpoints, time of day.
2 — The user has access to change the s etpoints only.