MAXA HWA1-A 0140, Manual

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HWA1-A
Air/water chillers with axial fans
7
tp DESCRIPTION Unit
t01 Water inlet temperature °C
t02 Water outlet temperature °C
t03 Compressor intake temperature °C
t04 Compressor discharge temperature °C
t05 Outdoor air temperature °C
t09 Low pressure bar
t10 High pressure bar
*t15 Desuperheater gas temperature sensor (if present) °C
*t16 Recovery temperature (if present) °C
*t17 Domestic hot water temperature (if present) °C
*t18 Plant water plant temperature remote sensor (if present) °C
(*) If the “Gi” optional module is installed .
5.3.4 Alarms menu
This menu appears only in case of active alarms. You can check all active alarms. The alarms are divided by circuit in case of multi-
circuit units (the ALCx label allows to get access to the alarms of the circuit number x).
5.3.5 Digital inputs menu
You can check the status of the digital inputs.
0 = inactive input
1 = active input
5.3.6 Parameters menu
The parameters are collected in groups, each group is identified by a three-digit code, while the index of each parameter is
preceded by a letter.
DESCRIPTION GROUP’S IDENTIFICATIVE CODE PARAMET ER’S INDEX VISIBILITY
Configuration CnF H- USER/INSTALLER
Compressor CP C- INSTALLER
Fan motor FAn F- INSTALLER
Alarms ALL A- INSTALLER
Regulation Re b- INSTALLER
Pump PUP P- INSTALLER
Electric heaters Fro r- INSTALLER
Defrosting dFr d- INSTALLER
Electronic valve EEu U- INSTALLER
Offset OFF o- INSTALLER
Inverter compressors nCP n- INSTALLER
5.3.7 Operation ’s hours menu
You can display the number of operating hours of the compressors and of the pumps.
Press the ESC button for 3 seconds to resets the actual number of operating hours. Note that you can get access to the menu only
with password.
5.3.8 USB menu
Below are indicated the functions that are available through the use USB flash drive that is connected to the board.
•
CONTROLLER FIRMWARE UPDATING
You can upgrade the firmware using the USB flash dive via its port on the controller.
For the update:
1. Copy the update files in the main directory of a USB pen-drive;
2. Place the unit in standby mode and turn it off, placing the main switch in OFF position;
3. Introduce the USB pen-drive in its port on the controller;
4. Feed the unit by placing the main switch on the ON state;
5. Enter at the parameters PRG
→
PSS
→
PRG
→
(introduce the maintainer password)
→
PRG
→
USB
→
UPdF
→
PRG.
The automatic firmware update process starts with the selection of this option, the display shows the transferred data in
Kilobytes. When the update is completed the display shows "boot" then the LEDs will light up in sequence.
6. .Once the update is completed, the card returns to normal operation and the appliance is ready to be enter in operation.
7. Turn off the unit by placing the main switch in OFF position.
WARNING
All the operations with installer visibility must be carried out by qualified personnel.
The company excludes any contractual and extra contractual liabilities for damages caused to persons, animals
or objects, by incorrect installation, setting and maintenance, improper use of the equipment, and the partial or
superficial reading of the information contained in this manual