17. Electronic Configure To Order (ECTO) Control Parameters
Page 72
506457−01 05/10
Control Parameter
No. Name
DescriptionUnits
Control Value
Min. Default Max.
Block 3 Gas Heating Parameters (continued)
3.12 StgDn_Timer
0
0
0
0
225
3600
Counts
F: Sec
Time delay before a lower stage turns off following a higher stage
termination. Used in zone sensor applications.
3.13
MGV_Control_
Mode
0 0 6 Option
Modulating Gas Valve Mode
0− A133 (GP1) not installed.
1− A133 (GP1 w/DIP set to MGV) installed, but no MGV. Data log-
ging only.
2− Two−stage fire; min. or 100% (with or without low−fire FAH)
3− 2 + modulating FAH
4− Direct mode.
AI1 (A133_P194−11) scaled to 0−100% and output on AO1.
AI2 (A133_P194_12)scaled to 0−100% and output on AO2.
5− DACH control; min. to maximum (with or without lo−fire FAH)
6− 5 + modulating FAH
Lighting sequence is followed for all modes; 2−6. See ECTO 3.14 and
3.15.
3.14
MGV_startup_
Phase2_delay
2
4
8
16
150
300
Counts
A: Sec.
Modulating gas startup delay. At startup, run burners on low stage
main gas valves(s) with MGV(s) at 100% for ECTO 3.05 seconds.
Increase burners to high stage of main gas valve(s) with MGV(s)
opened to ECTO 3.15 for ECTO 3.14 seconds. Begin PID or staged
control of MGV(s).
3.15 MGV_Max
60
60
80
80
100
100
Counts
P:%
Modulating gas valve maximum.
3.16 MGV_Min
0
0
20
20
100
100
Counts
P:%
Modulating gas valve minimum.
3.17
MGV_PID_
ManRS
0
0
50
50
100
100
Counts
P:%
Modulating gas valve PID manual reset value.
3.18
MGV_PID_P_
Constant
0 40 127 Counts Modulating gas valve PID proportional constant.
3.19
MGV_PID_I_
Constant
0 0 127 Counts Modulating gas valve PID integral constant.
3.20
MGV_PID_D_
Constant
0 0 127 Counts Modulating gas valve PID derivative constant.
table continued on next page
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