5.Press the ENTER key on the keypad.
6.The Display will show the message “Pro SoFt.” This message will last for up to one minute.
7.The Display module will read “Pro donE” when the software loading has loaded. (If a problem occurs while loading the software: the Display will blink the message “Pro FAIL” or “bad 12V”. Turn start- stop switch OFF and remove the card.)
8.Turn unit OFF, via
9.Remove the programming card from the program- ming/software port and return the unit to normal op- eration by placing the
b. Procedure for loading Configuration Software
1.Turn unit OFF using
2.Insert the programming card, for Configuration Software, into the programming/software port. (See Figure
3.Turn unit ON using
4.The Display module will show “nt40” on the left LCD display and “531###” on the right LCD dis- play. “###” will indicate the dash number for a given unit model number, use the UP or DOWN ARROW key to scroll through the list to obtain the proper model dash number. For example, to program a model number
5.Press the ENTER key on the keypad.
6.When the software loading has successfully com- pleted, the Display will show the message “EEPrM donE.” (If a problem occurs while loading the soft- ware, the Display will blink the message “Pro FAIL” or “bad 12V.” Turn
7.Turn unit OFF using
8.Remove the programming card from the program- ming/software port and return the unit to normal op- eration by placing the
6.21.4Removing and Installing a Module a. Removal:
1.Disconnect all front wire harness connectors and move wiring out of way.
2The lower controller mounting is slotted, loosen the top mounting screw (see Figure
3Disconnect the back connectors and remove module.
4When removing the replacement module from its packaging , note how it is packaged. When returning the old module for service, place it in the packaging in the same manner as the replacement. The packag- ing has been designed to protect the module from both physical and electrostatic discharge damage during storage and transit.
b.Installation:
Install the module by reversing the removal steps.
Torque values for mounting screws (item 2, see Figure
6.22 TEMPERATURE SENSOR SERVICE
Procedures for service of the Return Recorder, Return Temperature, Supply Recorder, Supply Temperature, Ambient, Defrost Temperature, Compressor Discharge and Compressor Suction temperature sensors are provided in the following sub paragraphs.
6.22.1 Sensor Checkout Procedure
Mounting Stud Type | 40 mm (1 1/2 inch) | |||
| Sensor | |||
|
| |||
Bulb Type |
| 6.3 mm (1/4 inch) | ||
40 mm | ||||
| Sensor | |||
|
|
| 6.3 mm (1/4 inch) | |
Dual Sensor | 40 mm | |||
|
| 6.3 mm (1/4 inch) |
Figure 6-19 Sensor Types
To check a sensor reading, do the following:
a.Remove the sensor and place in a 0_C (32_F)
b.Start unit and check sensor reading on the control panel. The reading should be 0_C (32_F). If the read- ing is correct, reinstall sensor; if it is not, continue with the following.
c.Turn unit OFF and disconnect power supply.
d.Refer to paragraph 6.21 and remove controller to gain access to the sensor plugs.