Orion-system MODGAS II User Manual download pdf (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°

1 2 ... 15 16 17 18 19 20 21 22

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Orion-system MODGAS II User Manual Page 20

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