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
Содержание HWA1-A 0140
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