Greenheck Microprocessor Controller v3.0 (469690) Manual de usuario descargar pdf (Pagina 12)

Access the I/O SETUP menu through the Main Menu. Scroll through the menu screens using the keys.

Sensor Calibration: Measure the actual temperature and find the difference from the Sensor Temp

(uncalibrated). This difference becomes the Offset and once the Offset is input to the

controller, the Actual Temp should match the actual measured temperature.

***ACCESS DENIED***

Enter Password:0000

WRONG PASSWORD

THIS SCREEN CAN BE LOCKED TO PREVENT TAMPERING WITH THE SETTINGS.

ROM THE FACTORY, ACCESS IS NOT PASSWORD PROTECTED TO ALLOW QUICKER

START-UP.

To set the password, go to the ‘PROGRAM’ menu by pressing the button.

Once there, scroll down until you arrive at the Change Password screen. The ‘Level 2’

password protects the

‘I/O SETUP’ menu.

Setups for DDC

Analog & Digital

Inputs/Outputs

THE ‘I/O SETUP’ MENU IS USED TO SET UP THE ANALOG & DIGITAL

INPUT/OUTPUTS.

B1 Outside:NTC

Sensor Temp: 000.0ºF

Offset = 00.0ºF

Actual Temp: 000.0ºF

THIS SCREEN DISPLAYS THE OUTSIDE AIR TEMPERATURE ENTERING THE UNIT.

NOTE: The wiring terminal for each I/O is displayed in the respective screens.

B2 Supply:NTC

Sensor Temp: 000.0ºF

Offset = 00.0ºF

Actual Temp: 000.0ºF

THIS SCREEN DISPLAYS THE SUPPLY DISCHARGE TEMPERATURE.

B3 Cold Coil:NTC

Sensor Temp: 000.0ºF

Offset = 00.0ºF

Actual Temp: 000.0ºF

THIS SCREEN DISPLAYS THE AFTER COOLING COIL TEMPERATURE.

This screen only appears if a cooling system was selected.

B4 Room Temp:NTC

Sensor Temp: 000.0ºF

Offset = 00.0ºF

Actual Temp: 000.0ºF

THIS SCREEN DISPLAYS THE ROOM TEMPERATURE.

This screen only appears if the room supply sensor is wired between B4 and BC4 on

the controller.

B4 Input

Max cooling demand.

Input Status:Open

THIS SCREEN DISPLAYS THE STATUS OF THE DIGITAL INPUT TO TERMINAL B4.

This screen only appears if the room supply sensor is NOT wired between B4 and

BC4 on the controller.

When the Input Status is Open, the unit will operate normally and adjust the discharge

temperature based on outdoor air temperature. When the Input Status is Closed (in the

case of a digital input, ie. Thermostat), this indicates that a digital call for cool is being

received by the controller. The controller then overrides the outdoor air temperature

discharge control and sends the supply temperature set point to the supply reset

minimum temperature (Max cooling: 55

ºF,adj. in ‘SET POINTS’ menu).

I/O SETUP MENU

Sensor Temp is the sensor’s uncalibrated output.

Offset is for calibrating the sensor.

Actual Temp is the new calibrated sensor output.

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Greenheck Microprocessor Controller v3.0 (469690) Manual de usuario Pagina 12

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