17. Electronic Configure To Order (ECTO) Control Parameters
Page 78
506457−01 05/10
Control Parameter
No. Name
DescriptionUnits
Control Value
Min. Default Max.
Block 6 System 1 Parameters (continued)
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
Autochangeover
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.
6.16
Autochangeover
_Delay
15
60
75
300
225
900
Counts
B: Sec
Autochangeover time delay. Delay between heating and cooling
modes.
6.17
BL_Control-
Zone_Sensor
0 0 1 Option
Blower control option for zone sensor applications during occupied
periods. 0 = Blower cycles with demands 1 = Continuous blower
6.18
Zone_Sensor_
Calibration
−20
−5
0
0
20
5
Counts
W:DegF
Zone sensor calibration offset.
Counts: −20 −16 −12 −8 −4 0 4 8 12 16 20
Offset(ºF)−5 −4 −3 −2 −1 0 1 2 3 4 5
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).
6.19
Free_CL_ Lock-
out_SP
112
60
161
Disabled
160
30
Counts
Y:DegF
Free cooling lockout SP. Locks out free cooling when outdoor temper-
ature is below this value. Default value 161 disables free cooling lock-
out.
6.20 FAH_SP
139
70
138
Disabled
183
40
Counts
X:DegF
Fresh Air Heating setpoint. To enable FAH, set this to a value be-
tween 40F (183) and 70F(139). Minimum value (138) disables Fresh
Air Heating.
6.21 FAH_Stg_DB
5
3
15
10
22
15
Counts
V:DegF
Fresh Air Heating stage deadband.
6.22
FAH_Min_
Cycle_ Time
15
120
60
480
225
1800
Counts
C:Sec
Fresh Air heating minimum cycle time.
6.23
Free_Cooling_
Supply_SP
146
65
161
55
176
45
Counts
X:Deg.F
Economizer modulates dampers to maintain supply air temperature
(RT6) at this setpoint during free cooling. DACC reset applies. See
ECTO 8.01−8.07.
6.24 Stg_3_HT_Diff
0
0
6
1.5
12
3
Counts
W:DegF
Heating stage 3 differential temperature. Used only with zone sensor
applications. Differential temperature must >= ECTO 6.11.
6.25 Stg_4_HT_Diff
0
0
8
2
12
3
Counts
W:DegF
Heating stage 4 differential temperature. Used only with zone sensor
applications. Differential temperature must >= ECTO 6.24.
6.26
Economizer_
Free_CL_SP
97
70
191
10
2507
0
Counts
Y:DegF
A55 DIP switch selects temperature (TMP) or enthalpy (ODE) mode.
When in TMP mode, outdoor air is suitable for free−cooling when
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 RAT=RETURN TEMPERATURE
6.27
Economizer_
Profile
0 2 2 Option
Economizer operating profile during free cooling when compressor
cooling is on.
0 − Damper continues to modulate.
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.
table continued on next page
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