Trane ACONT900AC43UA Service Manual page 21

4 Heat/3 Cool/ Heat Pump
Communicating Programmable 3-Wire Hookup
Note 1: RH gives 10-60% range selection on "MORE" screen
Note 2: Dewpoint control gives 0-10 range selection on "MORE"
screen. Either screen shows RH% on "MORE" screen
Option 1 = continuous fan speed (default = 50% cooling CFM
Note: Fan runs for 2 minutes after humidifier demand ends
Table 4. Installer Setup Menu Continued.
Not shown if ODU is 2-stage HP and
3 stages of heat are present
Phase 2 (serial date code 0904) makes
this option available in USU
ISU0380 must = 1 for this ISU
(A/T)CONT900AC43UA Installer Guide
If "0" is selected, RH% is no
longer displayed on the "MORE"
screen.
Deadband restricted to 5-9 degrees with
ITHC enabled. See ISU0310
C - A 13