Classic 20 ACU Installation, Operating & Maintenance Manual
AC-2 CS020020 USACG-6 Manual Rev B
Page 10 of 16
5.5.2
Initiating the “TEST” sequence
1.
Press L button for 2 seconds and release (Display will begin “Display Mode”)
2.
Press L&R button simultaneously for 2 seconds and release (Display will show “test”)
3.
Press L button for 2 seconds and release (Display will show test step)
4.
TEST steps
STEP
DESCRIPTION
LED
INT.
FAN
HEATER
COMP
COND.
FAN
DURATION
0
Display S/W Revision Level
X.XX
ON
OFF
OFF
OFF
10 SEC
1
Int. Fan only
T01
ON
OFF
OFF
OFF
30 SEC
2
Heater
T02
ON
ON
OFF
OFF
35 SEC
3
Int. Fan only
T03
ON
OFF
OFF
OFF
20 SEC
4
Con Fan
T04
ON
OFF
OFF
Cycle
30 SEC
5
Comp. and cond.
T04
ON
OFF
ON
ON
75 SEC
6
Int. Fan only
T05
ON
OFF
OFF
OFF
30 SEC
5.5.3
Resetting the controller to factory defaults
1.
Ensure return temperature is displayed otherwise wait 30 seconds
2.
Press L&R button for 15 seconds and release (Display will show “----”)