Olimpia splendid Unico Twin - Unico Master and Wall Split Communication Line; Communication between the Two Units; Routine Maintenance

49
ENGLISH
UNICO TWIN
2
The self-diagnosis function then activates the fan and the air outlet ap.
If the air conditioner stops with an alarm signal (as per the table below), notify the service centre of which LEDs are ashing to
assist the operation (g. 24).
DESCRIPTION
LED D
GREEN
LED C
YELLOW
LED B
GREEN
LED A
RED
Internal exchanger overtemperature (HTI) OFF OFF
ON
OFF
UNICO unit external exchanger overtemperature (HTE) OFF OFF
ON
ON
UNICO unit outdoor temp. probe fault (short circuit) (TFS7) OFF
ON
OFF OFF
UNICO unit outdoor temperature probe fault (open circuit) (TFS8) OFF OFF OFF
ON
Internal fan malfunction (SV) OFF
ON
OFF
ON
UNICO unit insufcient exchanger temperature (CF/RL) OFF
ON ON
OFF
UNICO unit condensation water maximum level (OF) OFF
ON ON ON
EEprom parameters not valid (CKS)
ON
OFF OFF OFF
Ambient temperature probe fault (short circuit) (TFS1)
ON
OFF
ON
OFF
Ambient temperature probe fault (open circuit) (TFS2)
ON
OFF
ON ON
Internal exchanger temp. probe fault (short circuit) (TFS3)
ON ON
OFF OFF
Internal exchanger temp. probe fault (open circuit) (TFS4)
ON ON
OFF
ON
UNICO unit external exchanger temperature probe fault
(short circuit) (TFS5)
ON ON ON
OFF
UNICO unit external exchanger temperature probe fault (open
circuit) (TFS6)
ON ON ON ON
Communication line malfunction (g. 42)
ON
OFF OFF
ON
: ashing
2.3 UNICO MASTER AND WALL SPLIT COMMUNICATION LINE
From the SPLIT unit (g. 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 (g. 40).
UNICO MASTER
Fasten the wires to the terminals (g. 40).
N.B.: the G contact only ever refers to the cable shielding.
WALL SPLIT
- Unscrew the xing 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 gure 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 specications:
- 2-pole plus shield
- maximum length 15 metres
- minimum cable section 0.35 mm
2
.
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 lter 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 ns with a soft brush
taking care not to deform them) or more thoroughly using dedicated detergents.