LTB FW09Q6 - Page 9

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
FW cooling only range – Monosplit single-phase
V6
Caution: the use of a manual that is not up to date with the condensing unit version does not
engage the responsibility of LTB
Page 9 / 17
CU power cable when IU is a ducted indoor unit with electrical heating
Size FW
07
09
14
18
24
36
Section [mm²]
3 x 2.5
3 x 2.5
3 x 2.5
3 x 2.5
3 x 4.0
3 x 6.0
Max. current [A] (cooling
mode)
4.1
4.7
6.6
8.8
11.0
14.6
Max. current [A] (heating)
9.2
9.2
10.5
10.5
19.8
29.5
The fuse chosen for the installation at the power supply board must be of the motor support type (i.g. D-curve).
CUs are supplied with a 6A fuse (see F2 in the wiring diagram in paragraph 16). It must therefore be changed
if the IU has the "electrical heating" function, the fuse to be installed is supplied with the IU (in its electrical
box). To check the value of the fuse, refer to the table below.
Control fuse protection – F2
Size FW
07
09
14
18
24
36
Indoor unit without electrical heating
6 A
6 A
6 A
6 A
6 A
6 A
Cassette indoor unit with electrical heating
-
-
10 A
10 A
10 A
10 A
Ducted indoor unit with electrical heating
10 A
10 A
10 A
10 A
20 A
GI36-40/75Pa : 32 A
GI36-40/150Pa : 25 A
The fuse must be of the motor support type (e.g. Am).