Lennox Core Unit Controller

69
Table 12. CORE Control System Unit Parameters
Control
Parameter
No
Screen Name
Parameter Short
Description
Control Value
Units Description
Min. Default Max.
355
GP A03 MAX
OUPUT
General Purpose
A03 Maximum
Output
0 100 100 %
Analog output channel 3 Maximum
output.
356 GP A03 SOURCE
General Purpose
A03 Source
1 1 3 SOURCE
Source/feedback for the PID loop.
• 1 = Analog input 1 on GP3 A03
• 2 = Analog input 2 on GP3 A03
• 3 = Analog input 3 on GP3 A03
357
GP A03 CYCL
INTRVL
General Purpose
A03 Cycle Interval
0 1 180 Seconds Frequency of execution of PID loop.
358 GP D01 MODE
General Purpose
D01 Mode
0 0 127 Input Source
GP3 Digital Out Control Mode = X + 32*Y
+ 16*Z
Input Sources X:
• 0 = None.
• 1 = Compressor 1 duty cycle.
(Compressor crankcase heater
function)
> On when outdoor air
temperature is > = Parameter
364 seconds have passed with
compressor 1 off.
> Off when outdoor air
temperature > Parameter 362
+3°F(xeddead-band)or
compressor 1 is turned on.
• 2 = On when Occupied
• 3 = On when blower on.
• 4 = On when heating demand
• 5 = On when cooling demand
• 6 = On when heating or cooling
demand
• 7 = System RH (use Parameter 361)
• 8 = System IAQ (use Parameter
360)
• 9 = System OAT (use Parameter
362)
• 10 = On based on GP3 Temperature
Sensor 1 (use Parameter 362)
• 11 = On based on GP3 Temperature
Sensor 2 (use Parameter 362)
• 12 = On based on GP3 AI1 (use
Parameter 359)
• 13 = On based on GP3 AI2 (use
Parameter 359)
• 14 = On based on GP3 AO1 (use
Parameter 359)
• 15 = On based on GP3 AO2 (use
Parameter 359)
• Algorithm Y for Input Sources 7-15
(see 507242-01, Prodigy Application
Guide for further details).
359
GP D01 SP
VOLTS
General Purpose
D01 Set Points
Volts
0 0 10 Volts
General Purpose D01 Digital output
control mode set point.
360 GP D01 SP PPM
General Purpose
D01 Set Point
Parts Per Million
21 996 1996 PPM
General Purpose D01 Digital output
control mode set point.
361
GP D01 SP
PERCENT
General Purpose
D01 Set Point
Percentage
0 0 100 %
General Purpose D01 Digital output
control mode set point.