Lennox PRODIGY M2 User Manual

10. Discharge Air Control
Page 47
PRODIGYT M2 UNIT CONTROLLER
10.8. Discharge Air Control Heating Total Reset Limit
ECTO 8.08 (default=10) defines the total DACH setpoint reset limit. This total limit is the sum of both return and outdoor DACH
resets. This parameter limits total DACH_SP adjustment band and overrides the adjustment bands for RAT and OAT (ECTO
8.11 & 8.14) if necessary.
Table 32. Discharge Air Heating ECTO Parameters Summary
Control Parameter
No. Name
Control Value
Min. Default Max
Units Description
5.09 HT_Staging 0 2 2 Option
Heating staging options:
0− No heating operation.
1− Discharge air control with up to 4 stages.
2− Thermostat operation.
6.01 System_Mode 0 0 12 Option
System mode of operation.
Control
Value System Mode Backup Mode
0 Local Thermostat None
1 Zone Sensor None
2 Zone Sensor Local Thermostat
3 Zone Sensor Return Air Sensor
4 Remote Demand None
5 Remote Demand Local Thermostat
6 Remote Demand Return Air Sensor
7 Remote Demand Zone Sensor
8 Future Use None
9 Future Use Local Thermostat
10 Future Use Return Air Sensor
11 Future Use Zone Sensor
12 A138 4−Stg. Tstat Interface None
7.10
DACH_OCP
_SP
36
140
80
110
124
80
Counts
X:DegF
Discharge Air Control Heating setpoint during occupied period.
7.11
DACH_UnOCP
_SP
36
140
95
100
124
80
Counts
X:DegF
Discharge Air Control Heating setpoint during unoccupied period.
7.12 DACH_Stg_DB
7
5
7
5
30
20
Counts
V:DegF
Discharge Air Control Heating deadband.
7.13
DACH_&_FAH_
StgUp_Delay
0
0
45
180
225
900
Counts
B: Sec.
Discharge Air Control Heating and Fresh Air Heating stage−up time delay.
7.14
DACH_&_FAH_
StgDn_Delay
0
0
30
120
150
600
Counts
B: Sec.
Discharge Air Control Heating and Fresh Air Heating stage−down time delay.
7.15
DACH_Stg_
Diff
3
2
3
2
30
20
Counts
V:DegF
Discharge Air Control Heating stage differential
8.08
DACH_RS_
Limit
7
5
15
10
29
20
Counts
V:DegF
Discharge Air Control Heating reset limit. This limits the total DACH reset al-
lowed.
8.09
DACH_RAT_
RS_SP.
124
80
139
70
169
50
Counts
X:DegF
Discharge Air Control Heating return air heating reset setpoint.
8.10
DACH_RAT_
RS_Proportion-
al_ Band
1
1
15
10
44
30
Counts
V:DegF
Discharge Air Control Heating return air heating reset proportional band.
8.11
DACH_RAT_
RS_Adjust_
Band
0
0
0
0
44
30
Counts
V:DegF
Discharge Air Control Heating return reset adjustment band.
0 value disables return air heating reset.
8.12
DACH_OAT_
RS_SP
113
60
144
40
255
−31
Counts
Y:DegF
Discharge Air Control Heating outdoor temperature reset setpoint.
8.13
DACH_OAT_R
S_Proportional_
Band.
1
1
31
20
94
60
Counts
O:DegF
Discharge Air Control Heating temperature reset proportional band.
8.14
DACH_OAT_R
S_Adjust_ Band
0
0
0
0
47
30
Counts
O:DegF
Discharge Air Control Heating outdoor temperature reset adjustment band.
0 disables outdoor temperature heating reset

Lennox PRODIGY M2 Specifications

General

Brand	Lennox
Model	PRODIGY M2
Category	Controller
Language	English