MAXA HWA1-A 0140, Manual

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HWA1-A
Air/water chillers with axial fans
6
5.2 Menu ’s structure diagram
Level 0 ( U ) = It’s always visible
Level 1 ( M ) = it’s visible if you enter the maintainer or manufacturer password
Level 2 ( C ) = it’s visible if you enter the manufacturer password
Level 3 ( A ) = it’s visible only via Modbus
5.3 Menu
The main functions of the menus are listed below, especially when there are some unambiguous functions. The main menu
manages the following items
MENU LABEL LIVEL OF PASSWORD OTHER CONDITIONS
Setpoint Set User Not accessible if the Hi-T control panel is connected
Sonde tP Installer ---
Alarms Err User Only in case of active alarms
Digital inputs Id Installer ---
Parameters Par Installer ---
Password PSS User ---
Number of operating hours oHr Installer ---
USB USb Installer Only in the USB flash drive is present with its files
You need to access to the password menu for introducing the relative password and enable an access with a greater privilege.
Once you exit completely from the menus, you lose the password privilege and need to re-enter it.
5.3.1 Setpoint menu
You can display and change the various setpoints.
SETPOINT DESCRIPTION UNIT DEFAULT RANGE
Coo First setpoint in the summer °C 7.0 H03 ÷ Co2
Hea First setpoint in the winter °C 45.0 He2 ÷ H01
*San DHW setpoint °C 48.0 H02 ÷ H01
Co2 Second setpoint in the summer °C 18.0 Coo ÷ H03
He2 Second setpoint in the winter °C 35.0 H02 ÷ Hea
5.3.2 Password menu
Enter the password for the desired access level. The controller will automatically activate the desired access level and then they
will appear on this level the functions which can be enabled from this level.
5.3.3 Sensors menu
The value of the various probes is displayed. The number of visible sensor depends on the presence of the I/O expansion modules.
Particular cases:
•
Err = Sensor is faulty
•
--- = Sensor not used (no function associated to such sensor)
By entering the maintainer password in the menu of analog inputs "tP", at the level 1 of the menu structure diagram of the on-
board control panel, you can read the values of the current probes: