49
ENGLISH
UNICO TWIN
2
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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
81,&2XQLWLQVXI¿FLHQWH[FKDQJHUWHPSHUDWXUH&)5/
OFF
ON
ON
OFF
81,&2XQLWFRQGHQVDWLRQZDWHUPD[LPXPOHYHO2)
OFF
ON
ON
ON
((SURPSDUDPHWHUVQRWYDOLG&.6
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
&RPPXQLFDWLRQOLQHPDOIXQFWLRQ¿J
ON
OFF
OFF
ON
:
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2.3
UNICO MASTER AND WALL SPLIT COMMUNICATION LINE
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ERDUGRIWKH81,&2XQLW¿J
UNICO MASTER
)DVWHQWKHZLUHVWRWKHWHUPLQDOV¿J
N.B.: the G contact only ever refers to the cable shielding.
WALL SPLIT
8QVFUHZWKH¿[LQJVFUHZRIWKHWHUPLQDOERDUGFRYHU)LJUHI$
-
Remove the cover to access the terminal board (Fig. 41 ref.B)
-
Run the cable through the hole in the back of the unit.
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2.3.1
Communication between the two units
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-
2-pole plus shield
-
maximum length 15 metres
-
minimum cable section 0.35 mm
2
.
2.4
ROUTINE MAINTENANCE
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RSHUDWLRQVLQYROYHVROHO\WKHFOHDQLQJRSHUDWLRQVRXWOLQHGEHORZ
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RXWE\VNLOOHGWHFKQLFLDQVRQDUHJXODUEDVLVWKDWZLOOGHSHQGRQWKHSODFHRILQVWDOODWLRQDQGLQWHQVLW\RIXVH'HSHQGLQJRQWKH
TXDQWLW\RIGLUWWKHXQLWFDQEHFOHDQHGGU\E\XVLQJDEDWWHU\FRPSUHVVRUDQGERZODQGFOHDQLQJWKH¿QVZLWKDVRIWEUXVK
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Summary of Contents for Unico Twin
Page 3: ...3 UNICO TWIN 7 300 mm B A 8 9 10 6...
Page 4: ...4 17 A 12 13 15 16 14 A B A 11...
Page 5: ...5 UNICO TWIN 18 19 20 B A A 21 N L N L A C B...
Page 6: ...6 24 H G LED D LED C LED B LED A 25 A B 22 A A D C B 23 26...
Page 7: ...7 UNICO TWIN 27 1 2 M H A U T O F A N S E T A U T O 28 150 mm 350 mm 29...
Page 8: ...8 30 5 75 mm 75 mm 1 5 m min 31 2 mm 32...
Page 9: ...9 UNICO TWIN 33 35 B A 34 B 37 36 A...
Page 10: ...10 39 38 1 2 3 A 41 A B 40...
Page 11: ...11 UNICO TWIN A B 44 43 42 SPLIT UNICO A B G A B G...
Page 12: ...12 45 A B C B D C A E F B A C 46 C D A B 47...
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