Lennox X4146 - System Test

Page 15
System Test
The system test function allows the in-
staller to check the HVAC system after
the thermostat set−up has been com-
pleted. The system test function is ac-
cessed through the installer set−up
menu.
1 − Press and release the SYSTEM
key.
2 − Press and hold the two blank keys
on either side of the center blank
key for approximately five seconds,
until the screen changes.
3 − Use the down arrow in the center of
the thermostat to reach the installer
test selections.
4 − The installer test number is dis-
played on the left−hand side of the
screen. The factory setting for the
test screen is displayed on the
right−hand side of the screen. Use
the up and down arrows on the
right−hand side of the thermostat to
select the desired test option.
5 − Refer to the following table to select
proper test options.
CAUTION − While the system is in
the test mode, the compressor mini-
mum off time is bypassed.
Installer
Test
Number
Installer
Set−Up
Name
Selection Description
Test 1
Installer Test
0 − Cooling is off (factory setting).
T
es
t
1
Installer
Test
Cool
1 − Cooling is activated.
Test 2
Installer Test
0 − Fan is off (factory setting).
T
es
t
2
Installer
Test
Fan
1 − Fan is activated.
Test 3
Installer Test
0 − Heating is off (factory setting).
T
es
t
3
Installer
Test
Heat
1 − Heat is activated.