Lennox Core Unit Controller

67
Table 12. CORE Control System Unit Parameters
Control
Parameter
No
Screen Name
Parameter Short
Description
Control Value
Units Description
Min. Default Max.
328
BPC PID P
CONST
Building Pressure
Control PID P
Constant
0 100 127 Count BPC PID Proportional Constant
329
BPC PID I
CONST
Building Pressure
Control PID I
Constant
0 30 127 Count BPC PID Integral Constant
330 GP A02 MODE
General Purpose
A02 Mode
0 0 12
Mode
Selection
• 1 - Occupied - PID set point A;
Unoccupied - PID set point B
• 2 - Occupied - PID set point A;
Unoccupied -Staged output B
• 3 - Occupied - Staged output A;
Unoccupied - PID set point B
• 4 - Occupied - Staged output A;
Unoccupied - Staged output B
• 5 - Blower On - PID set point A;
Blower Off - PID set point B
• 6 - Blower On - PID set point A;
Blower Off - Staged output B
• 7 - Blower On - Staged output A;
Blower Off - PID set point B
• 8 - Blower On - Staged output A;
Blower Off - Staged output B
• 9 - DI2 on - PID set point B (1); DI3
on - PID set point A (2); Otherwise
off.
• 10 - DI2 on - PID set point B
(1); DI3 on - Staged Output A (2);
Otherwise off.
• 11 - DI2 on - PID set point B (1);
DI3 on - Staged Output A (2);
Otherwise off.
• 12 - Reserved
• (1) -DI3 (on M3) doesn’t matter
• (2) -DI2 (on M3) is off
331 GP A02 SP A
General Purpose
A02 Set Point A
0 0 100 % Analog output channel 2, set point A.
332 GP A02 SP B
General Purpose
A02 Set Point B
0 0 100 % Analog output channel 2, set point B.
333 GP A02 STG A
General Purpose
A02 Stage A
0 0 100 % Analog output channel 2, stage A
334 GP A02 STG B
General Purpose
A02 Stage B
0 0 100 % Analog output channel 2, stage B
335 GP A02 OUTPUT
General Purpose
A02 Output
0 0 1 Selection
• 0 = PWM
• 1 = 0-10 VDC
336
GP A02 PWM
FREQ
General Purpose
A02 Pulse-Width
Modulation
Frequency
50 200 2000 Hz Analog output PWM frequency.
337 GP A02 KP
General Purpose
A02 Proportional
Constant for PID
0 0 100 Count
Analog output channel 2 PID loop
proportional constant.
338 GP A02 KI
General Purpose
A02 Integral
Constant for PID
0 0 100 Count
Analog output channel 2 PID loop integral
constant.
340
GP A02 MIN
OUPUT
General Purpose
A02 Minimum
Output
0 0 100 % Analog output channel 2 minimum output.
341
GP A02 MAX
OUPUT
General Purpose
A02 Maximum
Output
0 100 100 %
Analog output channel 2 maximum
output.