Lennox PRODIGY M2 User Manual

17. Electronic Configure To Order (ECTO) Control Parameters
Page 82
506457−01 05/10
Control Parameter
No. Name
DescriptionUnits
Control Value
Min. Default Max.
Block 8 System 3 Parameters (continued)
8.15 0 0 255 Counts Reserved.
8.16
Exh_Fan_
Control
0 0 23 Option
Single stage (controlled by A55_P265−2 output)
Mode Enable Input 1
0− Blower D_POS
1− Always A133_P194−1
2− OCP A133_P194−1
3− Blower A133_P194−1
4− Always A133_P194−7
5− Occupied A133_P194−7
6− Blower A133_P194−7
7− A133_P194−1 A133_P194−7
Two stage exhaust fan (controlled by A55_P265−2 & A133_p194−5
outputs)
Mode Enable Input 1 Input 2
8− Blower D_POS D_POS
9− Always A133_P194−1 A133_P194−2
10− Occupied A133_P194−1 A133_P194−2
11− Blower A133_P194−1 A133_P194−2
12− Always A133_P194−7 A133_P194−7
13− Occupied A133_P194−7 A133_P194−7
14− Blower A133_P194−7 A133_P194−7
15− A133_P194−1 A133_P194−7 A133_P194−7
For option 9−15, Stage 2 will not turn on until ECTO 8.25 seconds after
stage 1. Stage 1 won’t turn off until ECTO 8.22 seconds after stage 2
turns off.
VFD (PID) controlled Exhaust Fan with on/off cycling at minimum
speed (Cycled by A55_P265−2 and Speed controlled by VFD)
Mode Enable Analog Input
16 Always A133_P194−7
17− Occupied A133_P194−7
18− Blower A133_P194−7
19− A133_P194−1 A133_P194−7
Min. speed cycling: On at 10% over setpoint. Off after 30 seconds at
minimum speed. Minimum 30 seconds off.
VFD (PID) controlled Exhaust Fan (Always on when enabled)
(Cycled by A55_P265−2 and Speed controlled by VFD)
Mode Enable Analog Input
20 Always A133_P194−7
21 Occupied A133_P194−7
22 Blower A133_P194−7
23− A133_P194−1 A133_P194−7
Always on at least minimum speed when enabled.
USE ECTO 8.20
AND 8.21 FOR
SETPOINT AND
DEADBAND.
USE ECTO 8.17
FOR 0−10VDC
STAGE 1 OUTPUT
IF A133 (VAV)
PRESENT.
USE ECTO 8.20−8.25
FOR STAGE
SETPOINTS,
DEADBANDS AND
STAGE DELAYS.
USE ECTO 8.17
FOR 0−10VDC
STAGE 1 OUTPUT.
USE ECTO 8.18
FOR 0−10VDC
STAGE 2 OUTPUT.
USE ECTO
8.19−8.25 FOR
SETPOINT AND
PID CONSTANTS.
USE ECTO
8.20−8.25 FOR
SETPOINT AND
PID CONSTANTS.
8.17
Exh_Fan_
Stg_1_ SP
0
0
50
50
100
100
Counts
P:%
Speed setpoint for stage 1 exhaust fan when using a VFD for control-
ling exhaust fan in staged mode.
8.18
Exh_Fan_
Stg_2_ SP
0
0
100
100
100
100
Counts
P:%
Speed setpoint for stage 2 exhaust fan when using a VFD for control-
ling exhaust fan in staged mode.
8.19
Exh_Fan_
SP_for _SMK
0
0.5
50
−0.3
255
0.5
Counts
M:"w.c.
Exhaust fan smoke mode setpoint for PID option control
Staged_SMK 0 50 100 P:%
Staged setpoint for during smoke alarm.
Value used depends on smoke mode (ECTO 5.01)
8.20 Exh_Fan_SP
0
−0.5
50
−0.3
255
0.5
Counts
M:"w.c.
Exhaust fan setpoint for PID option control
Stage_1_SP
0
−0.5
50
−0.3
100
0.5
P:%
M:"w.c.
Stage 1 setpoint.
8.21 Exh_Fan_Min
0
0
10
10
255
100
Counts
P:%
Exhaust fan minimum speed.
Staged_1_DB
0
0
10
0.04
100
1.0
P:%
L:"w.c.
Staged 1 deadband.
8.22
Exh_Fan_
ManRS
0
0
50
50
100
100
Counts
P: %
Exhaust fan PID loop manual reset value.
Stg_1_Off_
Delay
0 100 200 A:Sec. Stage 1 off−delay. (Only used for 2 stage operation)
8.23
Exh_Fan_PID_
P_Constant
0 20 255 Counts
Exhaust fan PID loop proportional constant. The P constant must be
limited to 127. Recommended setting = 17.
table continued on next page

Lennox PRODIGY M2 Specifications

General

Brand	Lennox
Model	PRODIGY M2
Category	Controller
Language	English