25
INSTALLATION
User interface
“PLEASE USE SHIELDED WIRE AND EARTH THE WIRE.”
AB
X
YE
A
B
X
Y
E
AB
X
YE
COMMUNICATION
Connect the communication cable between indoor unit and remote control
keeping the correspondence of the letters indicated on the terminals (A with
A, B with B....).
Procedure:
1. Remove the rear part of the user interface.
2. Connect the cable to the appropriate terminals as shown in the picture
3. Reattach the rear part of the user interface
Wire type 5 wire shielded cable
Wire section
AWG18-AWG16(0.75~1.25mm2)
Maximum wire length 50m
Questo dispositivo supporta il protocollo di comunicazione Modbus RTU.
NOTE
☞
NOTA
☞
fi g. 7
How to go to FOR SERVICEMAN
Go to MENU> FOR SERVICEMAN. Press OK
The password is 666. Use ◄ ► to navigate and use ▼ ▲ to
adjust the numerical value. Press OK. The following page is
displayed:
Use ▼ ▲ to scroll and use “ok” to enter submenu for
setting the parameters.
FOR SERVICEMAN
Please input the password:
ADJUST SCROLLENTER
OK
0 0 0
FOR SERVICEMAN
2. COOL MODE SETTING
3. HEAT MODE SETTING
4. AUTO MODE SETTING
5. TEMP.TYPE SETTING
6. ROOM THERMOSTAT
7. OTHER HEATING SOURCE
1. DHW MODE SETTING
SCROLLENTER
OK
FOR SERVICEMAN
9. SERVICE CALL SETTING
10. INITALIZE MANUALLY
11. TEST RUN
12. SPECIAL FUNCTION
13. AUTO RESTART
8. HOLIDAY AWAY MODE SETTING
SCROLLENTER
OK
Description of terms
The terms related to this unit are shown in the table below
Parameter Description
T1
Outlet water temperature of the unit or of the backup heater (if installed)
T1B
Outlet water temperature sent to the system (in case of additional heating source as a gas boiler is installed)
T1S
Target outlet water temperature
T2
Temperature of refrigerant at outlet/inlet of plate heat exchanger when in heat mode/cool mode
T2B
Temperature of refrigerant at inlet/outlet of plate heat exchanger when in heat mode/cool mode
T3
Temperature of tube at outlet/inlet of condenser when in cool/heat mode
T4
Outdoor air temperature
T5
Temperature of domestic hot water (misured by the temperature probe installed on the DHW tank)
Th
Refrigerant suction temperature
Tp
Refrigerant discharge temperature
TW_in Inlet water temperature of plate heat exchanger
TW_out Outlet water temperature of plate heat exchanger
AHS
Additional heating source (for example a gas boiler)
IBH1
The first stage of the backup heater (if installed)
IBH2
The second stage of the backup heater (if installed)
TBH
Backup heater in the domestic hot water tank (if installed)
Pe
Refrigerant evaporate/condense pressure in cool/heat mode
ON/OFF by digital input or switch .(refer to room thermostat)
COOL/HEAT mode managment by digital input. (refer to room thermostat)
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