Lennox Prodigy M2 Application Manual page 78

Control Parameter
No. Name Min.
4
6.08 CL_Stg_DB
1
0
6.09 Stg_1_HT_Diff
0
0
6.10 Stg_1_CL_Diff
0
0
6.11 Stg_2_HT_Diff
0
0
6.12 Stg_2_CL_Diff
0
0
6.13 Stg_3_CL_Diff
0
0
6.14 Stg_4_CL_Diff
0
Zone_Sensor
8
6.15 Autochangeover
2
DB_Min
Autochangeover 15
6.16
_Delay 60
BL_Control-
6.17 0
Zone_Sensor
Zone_Sensor_ −20
6.18
Calibration −5
Free_CL_ Lock- 112
6.19
out_SP 60
139
6.20 FAH_SP
70
5
6.21 FAH_Stg_DB
3
FAH_Min_ 15
6.22
Cycle_ Time 120
Free_Cooling_ 146
6.23
Supply_SP 65
0
6.24 Stg_3_HT_Diff
0
0
6.25 Stg_4_HT_Diff
0
Economizer_ 97
6.26
Free_CL_SP 70
Economizer_
6.27 0
Profile
506457−01 05/10
Control Value
Default Max.
Block 6 System 1 Parameters (continued)
4 15
1 3.75 W:DegF
2 12
0.5 3 W:DegF
2 12
0.5 3 W:DegF
4 12
1 3 W:DegF
4 12
1 3 W:DegF
6 12
1.5 3 W:DegF
8 12
2 3 W:DegF
12 40
3 10 W:DegF
75 225
300 900
0 1
0 20
0 5 W:DegF
161 160
Disabled 30 Y:DegF
138 183
40 X:DegF
Disabled
15 22
10 15 V:DegF
60 225
480 1800
161 176
55 45 X:Deg.F
6 12
1.5 3 W:DegF
8 12
2 3 W:DegF
191 2507
10 0 Y:DegF
2 2
17. Electronic Configure To Order (ECTO) Control Parameters
Units Description
Counts Cooling deadband. Used only with zone sensor applications.
Deadband must be < or = 6.15 − 6.07.
Counts Heating stage 1 differential. Used only with zone sensor applications.
Differential temperature must be < or = 6.11.
Counts Cooling stage 1 differential. Used only with zone sensor applications.
Differential temperature must be < or = 6.12.
Counts Heating stage 2 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.09.
Counts Cooling stage 2 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.10 AND < or = 6.13.
Counts Cooling stage 3 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.12 AND < or = 6.14.
Counts Cooling stage 4 differential. Used only with zone sensor applications.
Differential temperature must be > or = 6.13.
Minimum autochangeover deadband temperature. Deadband must be
Counts
> or = (6.07 + 6.08).
Used in zone sensor applications.
Counts Autochangeover time delay. Delay between heating and cooling
B: Sec modes.
Blower control option for zone sensor applications during occupied
Option
periods. 0 = Blower cycles with demands 1 = Continuous blower
Zone sensor calibration offset.
Counts: −20 −16 −12 −8
Counts Offset(ºF)−5 −4 −3
ºF is an offset added to the zone sensor reading. Example: If the zone
sensor is reading 2ºF high, it can be corrected by setting the count
value to −8 (−2ºF offset).
Free cooling lockout SP. Locks out free cooling when outdoor temper-
Counts
ature is below this value. Default value 161 disables free cooling lock-
out.
Fresh Air Heating setpoint. To enable FAH, set this to a value be-
Counts
tween 40F (183) and 70F(139). Minimum value (138) disables Fresh
Air Heating.
Counts
Fresh Air Heating stage deadband.
Counts
Fresh Air heating minimum cycle time.
C:Sec
Economizer modulates dampers to maintain supply air temperature
Counts
(RT6) at this setpoint during free cooling. DACC reset applies. See
ECTO 8.01−8.07.
Counts Heating stage 3 differential temperature. Used only with zone sensor
applications. Differential temperature must >= ECTO 6.11.
Counts Heating stage 4 differential temperature. Used only with zone sensor
applications. Differential temperature must >= ECTO 6.24.
A55 DIP switch selects temperature (TMP) or enthalpy (ODE) mode.
When in TMP mode, outdoor air is suitable for free−cooling when
Counts
OAT < ECTO for ECTO 41−70 degF, or when
OAT < RAT − ECTO for ECTO 0−40 degF.
This ECTO is not used in ODE mode.
OAT = OUTDOOR TEMPERATURE
Economizer operating profile during free cooling when compressor
cooling is on.
0 − Damper continues to modulate.
Option
1 − Damper opens to ECTO 5.23.
2 − Same as 1, but additionally holds off compressor cooling until
the damper has modulated to ECTO 5.23 value for 3 minutes.
Page 78
−4 0 4 8 12 16 20
−2 −1 0 1 2 3 4
RAT=RETURN TEMPERATURE
table continued on next page
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