SECTION 2

2.7 SETTING THE CONTROLLER

The controller was factory set for normal operation. The factory settings are as follows:

 

RELAY 1

SET POINT

35OF

DIFFERENTIAL

10OF

MODE

COOLING

Turn on the main power to the FP-4 control.

If the settings have been changed, set them to the factory settings following the procedures below . The controller will retain the setting if the power is disconnected.

PROGRAMMING PROCEDURES

1.Press MENU key, then press RIGHT arrow key three times. Use the UP and DOWN arrow to select the SETPOINT. Press the RIGHT arrow to store the setpoint in memory.

2.Press the RIGHT arrow to set the DIFFERENTIAL. Use the UP and DOWN arrow to set the differential. Press the RIGHT arrow to store the differential in memory.

3.Press the RIGHT arrow key to set the HEATING / COOL- ING mode. Use the UP or DOWN arrow to select the desired mode. Press the RIGHT arrow to store the mode in memory.

4.Press RIGHT arrow three times to exit the program mode.

INSTALLATION

FIGURE 2-G CONTROLLER DISPLAY

SECTION 3

3.1 OPERATION

Once the kit is installed and set properly, just energize the controller and it will operate automatically.

The controller will turn off half of the aftercooler fan when the temperature of system air at the outlet of the aftercooler falls to 35OF. The fan will turn on when the system temperature rises to 45oF. Reference chart in Figure 3-A .

The heat tape is controlled by its own internal thermostat. Power is supplied to the heat tape as long as the control box is energized.

The temperature controller is equipped with a LCD display. During normal operation when the fan are operating, (temperature above set points) the sensor temperature and RELAYS 1 ON will be displayed on the controller.

NOTE: The cover on the control box must be opened to view the temperature controller display.

OPERATION

FIGURE 3-A OPERATION SEQUENCE

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Honeywell AC-140-7, AC-220-7 manual Operation, Setting the Controller

AC-220-7, AC-140-7 specifications

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