Unico Master And Wall Split Communication Line; Communication Between The Two Units; Routine Maintenance - Olimpia splendid UNICO TWIN Instrucciones Para La Instalación, Uso Y Mantenimiento

The self-diagnosis function then activates the fan and the air outlet flap.
If the air conditioner stops with an alarm signal (as per the table below), notify the service centre of which LEDs are flashing to
assist the operation (fig. 24).
DESCRIPTION
Internal exchanger overtemperature (HTI)
UNICO unit external exchanger overtemperature (HTE)
UNICO unit outdoor temp. probe fault (short circuit) (TFS7)
UNICO unit outdoor temperature probe fault (open circuit) (TFS8)
Internal fan malfunction (SV)
UNICO unit insufficient exchanger temperature (CF/RL)
UNICO unit condensation water maximum level (OF)
EEprom parameters not valid (CKS)
Ambient temperature probe fault (short circuit) (TFS1)
Ambient temperature probe fault (open circuit) (TFS2)
Internal exchanger temp. probe fault (short circuit) (TFS3)
Internal exchanger temp. probe fault (open circuit) (TFS4)
UNICO unit external exchanger temperature probe fault
(short circuit) (TFS5)
UNICO unit external exchanger temperature probe fault (open
circuit) (TFS6)
Communication line malfunction (fig. 42)
: flashing
2.3

UNICO MASTER AND WALL SPLIT COMMUNICATION LINE

From the SPLIT unit (fig. 41 ref. B) route the cable through the hole drilled in the wall and along the duct until it reaches the terminal
board of the UNICO unit (fig. 40).
UNICO MASTER
Fasten the wires to the terminals (fig. 40).
N.B.: the G contact only ever refers to the cable shielding.
WALL SPLIT
- Unscrew the fixing screw of the terminal board cover (Fig. 41 ref.A)
- Remove the cover to access the terminal board (Fig. 41 ref.B)
- Run the cable through the hole in the back of the unit.
- Fasten the cable with the cable clamp.
- Fasten the cables to the terminal board like in the figure 42.
- Close the door and fasten with its screw.
2.3.1

Communication between the two units

The communication cable between the two units must be shielded with the following specifications:
- 2-pole plus shield
- maximum length 15 metres
- minimum cable section 0.35 mm
2.4

ROUTINE MAINTENANCE

The air conditioner that you have purchased has been designed to reduce routine maintenance operations to a minimum. These
operations involve solely the cleaning operations outlined below:
- Cleaning or washing of the ambient air filter every 2 weeks or every time the relative red LED lights up (this can be done by
the user, see user manual).
- Cleaning of the condensing battery and cleaning of the condensate management system. These operations must be carried
out by skilled technicians on a regular basis that will depend on the place of installation and intensity of use. Depending on the
quantity of dirt, the unit can be cleaned dry (by using a battery compressor and bowl and cleaning the fins with a soft brush
taking care not to deform them) or more thoroughly using dedicated detergents.
.
2
LED D LED C LED B
GREEN YELLOW GREEN
OFF OFF
ON
OFF OFF
ON
OFF
ON
OFF OFF
OFF
ON
OFF
ON ON
OFF
ON ON
OFF
ON
OFF
ON ON
OFF
ON ON
ON ON
ON ON
ON ON ON
ON ON ON
OFF
ON
LED A
RED
OFF
ON
OFF OFF
OFF
ON
OFF
ON
OFF
ON
OFF OFF
OFF
ON
OFF OFF
OFF
ON
OFF
ON
OFF
ON
49
UNICO TWIN
2