Lennox Core Unit Controller

68
Table 12. CORE Control System Unit Parameters
Control
Parameter
No
Screen Name
Parameter Short
Description
Control Value
Units Description
Min. Default Max.
342 GP A02 SOURCE
General Purpose
A02 Source
1 1 3 Selection
Source/feedback for the PID loop.
• 1 = Analog input 1 on GP3 A02
• 2 = Analog input 2 on GP3 A02
• 3 = Analog input 3 on GP3 A02
343
GP A02 CYCL
INTRVL
General Purpose
A02 Cycle Interval
0 1 180 Seconds Frequency of execution of PID loop.
344 GP A03 MODE
General Purpose
A03 Mode
0 0 11
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
345 GP A03 SP A
General Purpose
A03 Set Point A
0 0 100 % Analog output channel 3, set point A.
346 GP A03 SP B
General Purpose
A03 Set Point B
0 0 100 % Analog output channel 3, set point B.
347 GP A03 STG A
General Purpose
A03 Stage A
0 0 100 % Analog output channel 3, stage A
348 GP A03 STG B
General Purpose
A02 Stage B
0 0 100 % Analog output channel 3, stage B
349 GP A03 OUTPUT
General Purpose
A03 Output
0 0 1 Selection
• 0 = PWM
• 1 = 0-10 VDC
350
GP A03 PWM
FREQ
General Purpose
A03 Pulse-Width
Modulation
Frequency
50 200 2000 Hz Frequency of execution of PID loop.
351 GP A03 KP
General Purpose
A03 Proportional
Constant
0 0 100 Count
Analog output channel 3 PID loop
proportional constant.
352 GP A03 KI
General Purpose
A03 Integral
Constant
0 0 100 Count
Analog output channel 3 PID loop integral
constant.
354
GP A03 MIN
OUPUT
General Purpose
A03 Minimum
Output
0 0 100 % Analog output channel 3 minimum output.