Trane Picco R32-140, User& Installer'S Manual

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Picco R32
Inverter air/water heat pumps with axial fan
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The DOWN key is used to move to a lower menu or to decrease the value of a parameter.
In standard operation, the display shows the water outlet temperature in tenths of Celsius degrees or the alarm code if at least one is active. If
several alarms are triggered, the first one is displayed while the second one will be displayed as soon as the first one is reset. In menu mode, the
display depends on the current position.
14.1 MENU
The following are the main features for navigating the menus, especially describing functions which are not obvious. The main menu has the
following items:
MENU LABEL LEVEL OTHER CONDITIONS
Setpoint Set User Not accessible if connected to Hi-T2
Password PSS User ---
Alarms Err User Only if active alarms
Probes tP Installer ---
Digital inputs Id Installer ---
Parameter Par Installer ---
Hours of operation oHr Installer ---
Alarm log Hist Installer Only if the log contains data
Firmware Version Fir Installer ---
USB USb Installer
Only with pen drive with relevant
update files
The PSS menu is accessed to enter the service password and to enable access with a higher user permission. When you have exited the menus,
the password must be entered once again to re-enter.
14.2 SETPOINT MENU
The various setpoints can be viewed and edited.
Set DESCRIPTION DEFAULT RANGE UNIT
Coo
First summer setpoint 7.0 5 ÷ Coo2 °C
Hea
First winter setpoint 45.0 Hea2 ÷ 60 °C
*San
Sanitary setpoint 48.0 25 ÷ 60 °C
*San2
Second Sanitary setpoint 48.0 25 ÷ 60 °C
Coo2
Second Summer setpoint 18.0 Coo ÷ 25 °C
Hea2
Second Winter setpoint 35.0 25 ÷ Hea °C
(*) If the DHW function is enabled
(**) If Gi module is included, access is only possible with installer password.
14.3 ALARM MENU [ERR]
The menu only appears if there are active alarms and lists the errors present. In the case of a multi-circuit machine, the alarms are subdivided by
circuit (label ALCx grants access to the alarms of circuit number x).
15. TROUBLESHOOTING
PROBLEM CAUSE SOLUTION
The unit does not start
Failure of power supply
Check system voltage
Check the protection systems upstream of the unit
Unit master switch to OFF
Circuit breaker OFF
Set on ON
Damaged electronic board
Damaged contactor
Compressor damaged
Replace the damage component
Poor unit yeld
Insufficient amount of refrigerant
Palnt system not properly sized
Check
Noisy compressor
Not adequately fixed
Wrong installation
Reversed phases
Check