Orion System MODGAS II - Manual (Page 20)

Section 2 MODGAS II Controller
2-4 Programming
Setpoint Screen #3
Minimum Default Maximum
PID LOOP Period 0 sec. 15 sec. 100 sec.
Setpoint Screens #4
Minimum Default Maximum
Switch To HI Speed
Fan Above Sig 0% 40% 100%
Setpoint Screens #5
Minimum Default Maximum
Temp Above 50 °F 150°F 300 °F
Setpoint Screens #6
Minimum Default Maximum
Supply Sensor SAT -100.0 ° 0.0°F +100.0°F
This value represents the sampling interval of the PID loop. It
indicates the time in seconds between calculations.
This is the percentage open of the modulating gas valve where the
Hi-Speed fan is required for proper induced airflow in the heat
exchanger.
If the Supply Air Temperature ever exceeds this value, the
MODGAS II Controller will immediately be disabled. In order
for the MODGAS controller to be re-enabled (resume normal
operation), the temperature must drop 10
°F below this setpoint.
The Thermistor Type III sensor readings can be calibrated. Enter
a Positive value to increase a reading and a Negative value to
decrease a reading.
Controller Setpoints
Switch To HI Speed
Fan Above Sig: xxx%
Controller Setpoints
PID LOOP PERIOD
Seconds......: xxx s
Controller Setpoints
SUPPLY CUT-OFF
Temp. Above..: xxx°F
Controller Setpoints
Sensor Calibration
SAT: xx.x° xx.x°