Lennox Commercial Touchscreen Thermostat - Operating the Thermostat; Setting Time; Setting Fan and System

Page 10
505103M 11/08
Table 4. Installer Tests
Test
1
Test Cool 0
0−Off
1−Cool Stage 1
2−Cool Stage 2
Test
2
Test Fan 0
0−Off
1−Fan On
Test
3
Test Heat 0
0−Off
1−Heat Stage 1
2−Heat Stage 1 and 2
3− Heat Stage 1, 2 and 3
Test
4
Auxiliary
Heat
0
0−Auxiliary Heat Off
1−Auxiliary Heat On
Test
8
TOD/
Economizer
0
0−TOD/Economizer Off
1−TOD/Economizer On
NOTE − Press the Done button to exit the Installer
System Test.
Operation
System Settings
Heat Thermostat controls the heating system.
Off Both heating and cooling systems are off.
Cool Thermostat controls the cooling system.
Auto Thermostat automatically changes be-
tween heat and cool operation, depending on in-
door temperature.
Fan Settings
Auto Fan runs only when heating/cooling system
is on. On−Fan runs continuously.
Table 5 shows default program settings. See Own-
er’s Guide for complete instructions to change the
program.
Table 5. Energy Star Default Program Settings
Schedule
Time
Setpoints
Fan
Schedule
Period
Time
Heat Cool
Fan
Setting
Occ1
08:00
am
70
o
F
(21
o
C)
75
o
F
(24
o
C)
Auto
Unocc1
10:00
pm
55
o
F
(10
o
C)
85
o
F
(29.5
o
C)
Auto
Occ2
a
−−−−
Unocc2
a
−−−−
a
The thermostat default setting is two period only. To
use four periods, change the appropriate setup pa-
rameter.
Outdoor or indoor temperature
sensor
Allow outdoor or indoor temperature sensor to ab-
sorb the air for a minimum of five minutes before
taking a reading. See the Sensor instructions for
more information.
Economizer/TOD Logic (Table 6)
Table 6. Terminal A Operation
Effective Call for
Terminal A
Effective
Occupancy
Call
for
Cool
TOD
Occupied − Energized
Unoccupied
Ye s De−energized
Unoccupied
No De−energized
Override − Energized
Allow outdoor or indoor temperature sensor to ab-
sorb the air for a minimum of five minutes before
taking a reading. See the Sensor instructions for
more information.
Troubleshooting
Table 7 lists symptoms, causes and actions to take
to remedy problems.