2. Main Controller Operation
Page 10
506457−01 05/10
Control Parameter
No. Name
DescriptionUnits
Control Value
Min. Default Max
4.21
Stg_3_StgUp_
Timer
0
0
57
912
225
3600
Counts
F:Sec
Stage 3 stage up timer. The maximum time that cooling stage 2 runs
before calling cooling stage 3. Used in zone sensor applications.
Disabled if set to 0.
4.22
Stg_4_StgUp_
Timer
0
0
57
912
225
3600
Counts
F:Sec
Stage 4 stage up timer. The maximum time that cooling stage 3 runs before call-
ing cooling stage 4. Used in zone sensor applications. Disabled if set to 0.
4.23 StgDn_Timer
0
0
57
912
225
3600
Counts
F:Sec
Time delay before a lower stage turns off following a higher stage termination.
Used in zone sensor applications.
General
5.25
Zone_Sensor_
StartUp_ Delay
15
2
15
2
225
30
Counts
C:Min.
Start−up demand delay. Holds off all unit operation zone sensor and CAVB ap-
plications. Hold off FAH−Reheat, FAC, FAH options and all GP outputs.
May be used to stagger unit start−ups. Does NOT delay demands in thermostat
mode.
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
6.02
OCP_HT_
BkUp_ SP
20
95
120
70
240
40
Counts
Z:DegF
Backup occupied heating setpoint. Used if the communications link is lost for 5
minutes between the M2 and NCP. Used only with zone sensor applications.
Setpoint temperature must be < or = (6.04 − 6.15).
6.03
UnOcp_HT_
BkUp_SP
20
95
160
60
240
40
Counts
Z:DegF
Backup unoccupied heating setpoint. Used if the communications link is lost for 5
minutes between the M2 and NCP. Used only in zone sensor applications. Set-
point temperature must be < or = (6.05 − 6.15).
6.04
Ocp_CL_
BkUp_ SP
20
95
100
75
240
40
Counts
Z:DegF
Backup occupied cooling setpoint. Used if the communications link is lost for 5
minutes between the M2 and NCP. Used only in zone sensor applications. Set-
point temperature must be > or = (6.02 + 6.15).
6.05
UnOcp_CL_
BkUp_SP
20
95
60
85
240
40
Counts
Z:DegF
Backup unoccupied cooling setpoint. Used if the communications link is lost for 5
minutes between the M2 and NCP. Used only in zone sensor applications.
Setpoint temperature must be > or = (6.03 + 6.15).
6.06
Override_
Timer
0
0
28
3584
225
28800
Counts
E: Sec
After hours override timer. Only used on zone sensor applications without a Net-
work Control Panel (NPC).
6.07 HT_Stg_DB
4
1
4
1
15
3.75
Counts
W:DegF
Heating deadband. Used only with M2 zone sensor applications.
Deadband must be < or = 6.15 − 6.08.
6.08 CL_Stg_DB
4
1
4
1
15
3.75
Counts
W:DegF
Cooling deadband. Used only with zone sensor applications.
Deadband must be < or = 6.15 − 6.07.
6.09 Stg_1_HT_Diff
0
0
2
0.5
12
3
Counts
W:DegF
Heating stage 1 differential. Used only with zone sensor applications.
Differential temperature must be < or = 6.11.
6.10 Stg_1_CL_Diff
0
0
2
0.5
12
3
Counts
W:DegF
Cooling stage 1 differential. Used only with zone sensor applications.
Differential temperature must be < or = 6.12.
6.11 Stg_2_HT_Diff
0
0
4
1
12
3
Counts
W:DegF
Heating stage 2 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.09.
6.12 Stg_2_CL_Diff
0
0
4
1
12
3
Counts
W:DegF
Cooling stage 2 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.10 AND < or = 6.13.
6.13 Stg_3_CL_Diff
0
0
6
1.5
12
3
Counts
W:DegF
Cooling stage 3 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.12 AND < or = 6.14.
6.14 Stg_4_CL_Diff
0
0
8
2
12
3
Counts
W:DegF
Cooling stage 4 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.13.
6.15
Zone_Sensor Au-
tochangeover
DB_Min
8
2
12
3
40
10
Counts
W:DegF
Minimum autochangeover deadband temperature. Deadband must be > or =
(6.07 + 6.08).
Used in zone sensor applications.
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