Trane 824 Comfort Control - System Setup; Power-Up Sequence

Installation Guide
page 20 18-HD72D1-1
5. System Setup
5.1 Power-Up Sequence
When the 824 Control is connected to the Sub-base, the
Control will initiate a 90-120 second power-up sequence.
During the power-up sequence, the Screen Calibration
option is available for five seconds. If the screen is not
pressed within five seconds, the Control will default to
previously stored Screen Calibration settings.
Note: The 824 Control is factory calibrated and can be
recalibrated at any time by rebooting the Control and
selecting Screen Calibration option within the five seconds
following power-up.
Diagram 27 - Package Single or Multi-Stage Dual Fuel w/Variable Speed Blower
AUX 2
AUX 1
24VAC HOT
COMMON
SOV
COOLING
FA N
HEATING
ODT
RS
AUX2
AUX2
AUX1
AUX1
RC
RH
B/C
O
Y1
Y2 Y2
G
BK
W1
W2
G
BK
W1
W2/X2
W3
ODT
ODT
RS1
RS1
O
R
B
Y
27- Package Single or Multi-Stage Dual Fuel with Variable Speed Blower
OUTDOOR UNIT
NOTES:
1. Cut and remove the factory installed “BK” jumper on
them ECM fan control board
2. ”BK” is not connected on non-Trane/American
Standard units
3. For restricted mode operation, a wired ODT sensor
must be connected to the 824
Optional
Outdoor
Sensor
Optional
Remote
Sensor
1
1