Lennox Prodigy M2 Application Manual page 67

The unit controller software can directly access a unit by plugging into the M2 board phone jack and connecting to a serial
port using a PC converter. Any unit on the same daisy−chained network can be adjusted from any unit M2 board or the NCP.
A LAN ethernet converter and phone modem are also available for remote connections.
Control Parameter
No. Name Min.
A BOX 3−5 ton
Supply_VAV_
0.01 0
Control_Mode
VAV_SMK_ 0
0.02
Stg_Output 0
VAV_HT_ 0
0.04
Stg_Output 0
VAV_CL_ 0
0.05
Stg_1_Output 0
VAV_HT_ 0
0.09
Stg_Output 0
Free_CL_Stg_ 0
0.27
Up_Delay 0
A (6 ton), B, C, D, & E BOXES Block 0 VAV, CAVB, & MSAV Parameters
Supply_VAV_
0.01 0
Control_Mode
VAV_Press_ 0
0.02
SMK_ SP 0
VAV_SMK_
0
Stg_ Output
VAV_ Press_ 0
0.03
Vent_ SP 0
VAV_VT_ Stg_
0
Output
VAV_ Press_ 0
0.04
HT_SP 0
VAV_HT_Stg_O
0
utput
VAV_Press_ 0
0.05
CL_ SP 0
VAV_CL_Stg_1
0
_ Output
Table 41. M2 ECTO Control Parameters
Control Value
Default Max.
Block 0 MSAV Parameters
0 (6 ton)
64 (3,4,5 ton Std Eff)
68 (3 ton High Eff) 255
72 (4 ton High Eff)
76 (5 ton High Eff)
55 (3,4,5 ton Std Eff)
55 (3 ton High Eff)
100
80 (4 ton High Eff) 100
59 (5 ton High Eff)
55 (3,4,5 ton Std Eff)
55 (3 ton High Eff) 100
80 (4 ton High Eff)
100
59 (5 ton High Eff)
28 (3,4,5 ton Std Eff)
28 (3 ton High Eff)
100
40 (4 ton High Eff) 100
36 (5 ton High Eff)
30 100
30 100
38 255
304 2040
0 63
51 255
1.00 5.0
51 100
51 255
1.00 5.0
51 100
51 255
1.00 5.0
51 100
51 255
1.00 5.0
51 100
17. Electronic Configure To Order (ECTO) Control Parameters
Units Description
Supply VAV control mode selection by weight:
4 − MCB 3 ton direct drive
8 − MCB 4 ton direct drive
12 − MCB 5 ton direct drive
Option
16 − MCB indoor blower high speed when running on OCP
32 − MCB indoor blower high speed when running on G
64 − MCB exists
Counts
Blower staged % output during smoke detection.
P: %
Blower staged % output high speed; used for heating and high cooling
P: %
or ventilation.
P: % Blower staged % output low speed; used for low cooling or ventilation.
Minimum damper position during low speed blower operation. Use
P: %
ECTO 5.24 during high speed blower operation.
Free cooling blower stage−up delay. Blower runs low speed during
Counts
delay, and then shifts to high speed. Set to 0 for immediate high
C: Sec
speed, or XXX to stay in low speed.
Add the weights for each control description to determine option.
Weight− Description
1− GP1 board present, DIP set to VAV mode for VAV or CAVB con-
trol action.
2− VAV control action. 0 for CAVB control action. See table 29.
The following weights are used for VAV:
4− PID control when smoke detected. 0 for staged
Option
8− PID control when running ventilation. 0 for staged.
16− PID control when running cooling. 0 for staged.
32− PID control when running heating. 0 for staged
For VAV control action, either PID or staged control can be selected.
For CAVB control action, PID is automatically used. (Staged is not
available for CAVB). Configuration alarm will occur if GP board (W/
DIP set to VAV) is installed and at least one of the following ECTO
parameters value are not set to non−zero: ECTO 0.01, 0.23 or 8.16
Counts
VAV supply static pressure setpoint during smoke detection.
N:"w.c.
P: % VAV staged % output during smoke detection.
Counts
VAV supply static pressure setpoint during ventilation.
N:"w.c.
P:% VAV staged % output during ventilation and economizer free cooling.
Counts
VAV supply static pressure setpoint during heating.
N:"w.c.
P:% VAV staged % output during heating.
Counts
VAV supply static pressure setpoint during cooling.
N:"w.c.
P:% VAV staged % output while cooling compressor 1 is on.
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PRODIGYT M2 UNIT CONTROLLER