
and
keys. Pressing the PRG key memorizes the new values and exits the procedure. If for over 10 seconds no modification is made, the display begins to flash. If no other key is pressed in 60 seconds, the unit will go back to normal status without changing any parameter.
Access to “FACTORY” parameters
The FACTORY parameters are and
keys moves you through all FACTORY parameters available. Pressing SEL once again displays the parameter value of the
and
keys. Press- ing the PRG key memorizes the new values and exits the procedure. If for over 10 seconds no modification is made, the display begins to flash. If no other key is pressed in 60 seconds, the unit will go back to normal status without chang- ing any parameter.
Deactivation of the buzzer
To deactivate the alarm buzzer, press the MUTE key. (The buzzer will become operative only is programmed previously.)
Alarm reset
Pressing the and
keys for over 5 seconds (if using a
remote terminal, press the CLEAR key for over 5 seconds) will cancel present in the memory. The alarm message will also disappear from the display and the alarm relay will be deactivated.
Forces defrost (YLCC-H)
Pressing the SEL and keys simultaneously for over 5 sec- onds activates the forced defrost cycle of both coils, as long as the temperature of said coils is below the value set for finalizing defrost.
Clearing hour counters
When displaying compressor or heat pump operating hours (parameters c9, cA and cC), the counter can be cleared by pressing the and
keys simultaneously (if a remote termi- nal is being used, press the CLEAR key).
Installation of default parameters
With the unit turned off, press the PRG key. Holding this key down turns the system on. Once this process is over, the letters dF appear on the display. The default parameters are those included by the controller manufacturer and affect the DIRECT and USER parameters based on the FACTORY val- ues.
Adjusting display contrast
On remote terminals only. Press the key located between MUTE and PRG to access the three contrast levels avail- able.
|
| Summery of keyboard functions | |
Key | Unit status | Action | |
|
|
| |
| Normal operation. Entering water temp. is | DIRECT parameters appear after 5 seconds | |
| displayed (probe B1) | ||
SEL |
| ||
|
| ||
List of parameters | Display of values | ||
| |||
|
|
| |
| Display of values | Display list of parameters | |
|
|
| |
| Normal operation | USER parameters appear after 5 seconds | |
|
|
| |
| List of parameters | Memorizes EEPROM values and then displays probe B1 | |
| temperature. | ||
PRG |
| ||
|
| ||
Display of values | Memorizes EEPROM values and then displays probe B1 | ||
| |||
| temperature. | ||
|
| ||
|
|
| |
| Buzzer active | Buzzer goes off | |
|
|
| |
| Normal operation | Activates or deactivates COOL mode after 5 seconds | |
UP / HEAT |
|
| |
List of parameters | Display of parameters | ||
|
|
| |
| Display of values | Increases value | |
|
|
| |
| Normal operation | Activates or deactivates HEAT mode after 5 seconds | |
DOWN / HEAT |
|
| |
List of parameters | Display of parameters | ||
|
|
| |
| Display of values | Decreases value | |
|
|
| |
PRG + SEL | Normal operation | FACTORY parameters appear after 5 seconds (password) | |
|
|
| |
SEL + UP | Normal operation | Starts forced defrost after 5 seconds, if allowed by temperature | |
conditions | |||
|
| ||
|
|
| |
UP + DOWN | Normal operation | Resets alarms after 5 seconds | |
|
| ||
Display of hours | Clears counter | ||
| |||
|
|
| |
PRG | In | Installs default parameters and values | |
|
|
| |
PRG + UP | In | Copies key on controller EEPROM | |
|
|
| |
PRG + DOWN | In | Copies EEPROM on the key | |
|
|
|
31