Local/Remote Humidity Display And Control - Trane X13511538-01 Installation And Operation Manual

Other Thermostat Functions

Local/Remote Humidity Display and Control

The thermostat has the capability of displaying the local/remote humidity readings, depending on
the value setting for Configuration Option Number 0200. An external humidity sensor is connected
to terminal Hp(+) and Hs(-). The table that follows provides information about humidity sensor
selection. For details about setting or changing dehumidification, refer to the section,
Setup," p.
Option
Number 0200
General Information: For external humidity control, a 4–20 mA humidity sensor must be connected to the Hp and HS
terminals. Terminal Hp provides a 24 Vdc nominal to the external humidity sensor. Refer to
0
1
2
Other related Option Numbers
0205; Dehumidification Control
0
1
0206; Internal Humidity Offset Adjustment: Allows adjustment of the internal relative humidity reading to account for
accuracy, tolerance, and potential drift. Firmware uses the adjusted value for display and humidity control.
-9% to 9% in 1% increments.
0207; External Humidity Offset Adjustment: Allows adjustment of the external relative humidity reading to account for
accuracy, tolerance, and potential drift. Firmware uses the adjusted value for display and humidity control.
-9% to 9% in 1% increments.
(a) Blink rate for humidity display 0% to 4%, 96% to 100%, and "--" is 1.5 seconds ON and 0.5 seconds OFF. Blink rate for
40
28.
Installer Parameter Number Value Description
No humidity display.
Internal humidity sensor is used for control:
• 0% to 4% and 96% to 99% humidity; blinks the humidity reading and equipment runs for the 96% to
99%.
• 100% humidity; blinks 99 for humidity reading, blinks error code E1, and dehumidify equipment is ON.
• Communication down or invalid; blinks "--", blinks error code E1, and dehumidify equipment is OFF.
External humidity sensor is enabled:
• 96% to 99%; blinks humidity reading and dehumidify function is ON because of setpoint.
• 100%; blinks 99% for humidity reading and blinks error code E1. The dehumidify equipment is ON.
• 0% to 4%; blinks humidity reading dehumidify functions is OFF because of setpoint.
• Current less than 4 mA; blinks "--", blinks error code E1, and dehumidify equipment is OFF.
Active control. The thermostat will toggle the Dh output terminal ON if humidity sensor value is 5% above
setpoint and toggle OFF when the humidity sensor value drop 5% below setpoint.
Passive control. The thermostat will run cool mode for up to 1 extra minute whenever there is a call for
cooling and a call for dehumidification.
error code E1 is 3 seconds Error code display and 1 second Time Display.
(a)
(a)
"Dehumidify
Humidity Reading
Table 9, p. 41 below.
BAS-SVX44A-EN