Lennox Core Unit Controller Setup Manual page 63

Control
Parameter Screen Name
No
SRV OUTPT DB
191
RH
SRV OUTPT DB
192
TEMP
SRV OUTPT
193
DELAY
LOAD SHED
194
NUM COMP
196 MAC ADDRESS
197 BAUD RATE
DACC OAT RS
201
ADJ BND
DACC OAT RS
202
ADJ SP
DACC OAT RS
203
PRP BND
DACC RAT RS
204
ADJ BND
DACC RAT RS
205
ADJ SP
DACC RAT RS
206
PRP BND
207 DACC RS LIMIT
Table 12. CORE Control System Unit Parameters
Parameter Short
Description
Min.
Service Output
Deadband for 2
Relative Humidity
Service Output
Deadband for 1
Temperature
Service Output
64
Delay
Number of
compressors to
0
shed during load
shedding
MAC Address 0
Baud Rate
System 3 Parameters
Discharge Air
Control Cooling
Outdoor Air 0
Temperature
Adjustment Band
Discharge Air
Control Cooling
Outdoor Air
40
Temperature
Cooling Reset Set
Point
Discharge Air
Control Cooling
Outdoor Ambient
1
Air Temperature
Cooling
Proportional Band
Discharge Air
Control Cooling
0
Return Air Reset
Adjustment Band
Discharge Air
Control Return Air
50
Reset Adjustment
Set Point
Discharge Air
Control Cooling
1
Return Air Reset
Proportional Band
Discharge Air
Control Cooling 5
Reset Limit
Control Value
Default Max.
13 100
8 162
416 8160 Seconds
0 4
128 128 Address
9.6K
19.2K
38.4K
76.8K
0 30
80 100
20 60
0 30
70 80
10 30
10 20
63
Units Description
Service Output Deadband for Relative
%
Humidity
Service Output Deadband for
°F
Temperature
Service Output Delay
Number of compressors to be turned off
when load shedding is active.
Applicable to Standard Efficiency 3- to
Option
6-ton units only. 2-stage compressor, a
value of one shuts off 2nd stage only and
a value of 2 turns compressor completely
off.
BACnet MAC Address. A value of 0-128
sets the BACnet MAC address to that
value.
Option Baud rate setting.
• Discharge Air Control Cooling
outdoor temperature ambient
cooling adjustment reset band.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling
outdoor air temperature cooling
reset set point.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling
outdoor ambient temperature
cooling proportional band.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling
return air reset adjustment band. 0
disables return air cooling reset.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling return
air reset set point.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling return
air reset proportional band.
°F
• Also used to reset free cooling set
point (Parameter 159).
• Discharge Air Control Cooling total
reset limit. This limits the total DACC
reset allowed.
°F
• Also used to reset free cooling set
point (Parameter 159).