Lennox Core Unit Controller Setup Manual page 61

Control
Parameter Screen Name
No
FAT AUTO
169
CHGOVR DLY
FRESH AIR
170
COOL SP
FAC STAGE
171
DEADBAND
FAC MIN CYCLE
172
TIME
FAC STAGE
173
DIFFER
DACH OCC
174
SETPOINT
DACH UNOCC
175
SETPOINT
DACH STAGE
176
DEADBAND
DACH FAH STG
177
UP TMR
DACH FAH STG
178
DN TMR
DACH STAGE
179
DIFFER
DACC OCC
180
SETPOINT
DACC UNOCC
181
SETPOINT
DACC STAGE
182
DEADBAND
DACC FAC STG
183
UP TMR
DACC FAC STG
184
DN TMR
Table 12. CORE Control System Unit Parameters
Parameter Short
Description
Min.
Fresh Air
Tempering
Automatic 15
Changeover
Delay
See CORE System Application Guide for further details and to change the fresh air cool (FAC) set point. Modify the
set point only using the method described in the reference section.
Fresh Air Cooling
3
Control Deadband
Fresh Air Cooling
Control Cycle 120
Time
Fresh Air Cooling
Control Stage 0
Differential
Discharge Air
Control Heating
60
Occupied Set
Point
Discharge Air
Control Heating
60
Unoccupied Set
Point
Discharge Air
Control Heating 5
Stage Deadband
Discharge Air
Control Heating
0
Stage-Up Time
Delay
Discharge Air
Control Heating
and Fresh Air
0
Heating Control
Stage-Down Time
Delay
Discharge Air
Control Heating 2
Stage Differential
Discharge Air
Control Cooling
40
Occupied Set
Point
Discharge Air
Control Cooling
40
Unoccupied Set
Point
Discharge Air
Control Cooling
5
Deadband Set
Point
Discharge Air
Control Cooling
and Fresh Air 0
Cooling Stage-Up
Delay
Discharge Air
Control Cooling
and Fresh Air 0
Cooling Stage-
Down Time Delay
Control Value
Default Max.
30 120 Minutes
10 15
480 1800 Seconds
2 20
110 140
95 140
5 20
180 900 Seconds
120 600 Seconds
2 20
55 80
65 100
5 20
180 900 Seconds
120 600 Seconds
61
Units Description
Fresh Air Heating Control or Fresh Air
Cooling Control air Tempering auto-
changeover delay.
°F Fresh Air Cooling stage dead-band.
Fresh Air Cooling minimum cycle time.
• Fresh Air Cooling stage differential
between stages.
°F
• Set to 0 for first stage cooling only
for Fresh Air Cooling.
Discharge Air Control Heating set point
°F
during occupied period.
Discharge Air Control Heating set point
°F
during unoccupied period.
°F Discharge Air Control Heating dead-band.
Discharge Air Control Heating and Fresh
Air Heating stage-up time delay.
Discharge Air Control Heating and Fresh
Air Heating stage-down time delay.
Discharge Air Control Heating stage
°F
differential
Discharge Air Control Cooling set point
°F
during occupied period.
Discharge Air Control Cooling set point
°F
during unoccupied period.
Discharge Air Control Cooling stage
°F
dead-band.
Discharge Air Control Cooling and Fresh
Air Cooling stage-up delay.
Discharge Air Control Cooling and Fresh
Air Cooling stage-down time delay.