Lennox Prodigy M2 Application Manual page 82

Control Parameter
No. Name Min.
8.15 0
Exh_Fan_
8.16 0
Control
Exh_Fan_ 0
8.17
Stg_1_ SP 0
Exh_Fan_ 0
8.18
Stg_2_ SP 0
Exh_Fan_ 0
8.19
SP_for _SMK 0.5
Staged_SMK 0
0
8.20 Exh_Fan_SP
−0.5
0
Stage_1_SP
−0.5
0
8.21 Exh_Fan_Min
0
0
Staged_1_DB
0
Exh_Fan_ 0
8.22
ManRS 0
Stg_1_Off_
0
Delay
Exh_Fan_PID_
8.23 0
P_Constant
506457−01 05/10
Control Value
Default Max.
Block 8 System 3 Parameters (continued)
0 255
0 23
50 100
50 100
100 100
100 100
50 255
−0.3 0.5
50 100
50 255
−0.3 0.5
50 100
−0.3 0.5
10 255
10 100
10 100
0.04 1.0
50 100
50 100
100 200
20 255
17. Electronic Configure To Order (ECTO) Control Parameters
Units Description
Counts Reserved.
Single stage (controlled by A55_P265−2 output)
Mode Enable
0− Blower
1− Always
2− OCP
3− Blower
4− Always
5− Occupied
6− Blower
7− A133_P194−1 A133_P194−7
Two stage exhaust fan (controlled by A55_P265−2 & A133_p194−5
outputs)
Mode Enable
8− Blower
9− Always
10− Occupied
11− Blower
12− Always
13− Occupied
14− Blower
15− A133_P194−1 A133_P194−7 A133_P194−7
Option
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
16 Always
17− Occupied
18− Blower
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
20 Always
21 Occupied
22 Blower
23− A133_P194−1 A133_P194−7
Always on at least minimum speed when enabled.
Counts Speed setpoint for stage 1 exhaust fan when using a VFD for control-
P:% ling exhaust fan in staged mode.
Counts Speed setpoint for stage 2 exhaust fan when using a VFD for control-
P:% ling exhaust fan in staged mode.
Counts
Exhaust fan smoke mode setpoint for PID option control
M:"w.c.
Staged setpoint for during smoke alarm.
P:%
Value used depends on smoke mode (ECTO 5.01)
Counts
Exhaust fan setpoint for PID option control
M:"w.c.
P:%
Stage 1 setpoint.
M:"w.c.
Counts
Exhaust fan minimum speed.
P:%
P:%
Staged 1 deadband.
L:"w.c.
Counts
Exhaust fan PID loop manual reset value.
P: %
A:Sec. Stage 1 off−delay. (Only used for 2 stage operation)
Exhaust fan PID loop proportional constant. The P constant must be
Counts
limited to 127. Recommended setting = 17.
Page 82
Input 1
D_POS
A133_P194−1
A133_P194−1
A133_P194−1
A133_P194−7
A133_P194−7
A133_P194−7
Input 1 Input 2
D_POS D_POS
A133_P194−1 A133_P194−2
A133_P194−1 A133_P194−2
A133_P194−1 A133_P194−2
A133_P194−7 A133_P194−7
A133_P194−7 A133_P194−7
A133_P194−7 A133_P194−7
Analog Input
A133_P194−7
A133_P194−7
A133_P194−7
Analog Input
A133_P194−7
A133_P194−7
A133_P194−7
table continued on next page
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.