6
5.4 – Power wiring cable
The connection cable between the electric heater control box
and the unit control box must be connected to ensure control
during operation.
Cables corresponding to the unit wiring diagram must be
connected between terminals 14, 19, 5 and 1 of the terminal
strip in the electric heater control box and in the unit control
box. For the packaged 50TA/TY units these have the following
characteristics:
Fig. 17
Dimensions, mm
50TA/TZ
50TY/YZ
kW
A
024
1.5-6
3000
036-060
3-4, 5-6,
9-13.5
3900
072-084
6, 12, 18
5000
Wire section, mm
kW
230 V, 3 ph
400 V, 3 ph
L1, L2, L3
L1, L2, L3,
1.5
1.5
1.5
3
1.5
1.5
4.5
2.5
1.5
6
4
1.5
9
6
2.5
12
10
4
13.5
10
4
18
16
6
Colour code:
L1, L2, L3 = Black
= Green/yellow striped
2
= Flexible pipe, type PG 13.5 for all capacities except 12 and 18 kW
– these are type PG 16
NOTE: The wire section is suitable for ambient temperatures
below 50°C.
NOTE: All data applies to packaged units. For split system
units the data depends on the distance between indoor and
outdoor units.
These cable assemblies must be run from the thermal-magnetic
switch of the electric heaters inside the control box to the power
and control box for the unit, as shown in the unit wiring dia-
grams. Cable
Ⓐ
, Fig. 16, is taken out of the casing conduit of
the electric heater control box
Ⓐ
, Fig. 18, and passed through a
conduit using the pre-punched hole in panel
Ⓒ
.
Fig. 16
Fig. 15 - 230 V three-phase or 400 V three-phase
heaters with 1.5, 3, 4. 5, 6, 9, 12, 13.5 and 18 kW
capacity
Dimensions, mm
50TA/TZ
50TY/YZ
A
024
3300
036-060
3900
072-084
5000
1
Number of the connection terminal and cable
2
Cables:
Section = 1 x 1 mm
Colours:
No. 5 and 1 = Grey
No. 14
= Black
No. 19
= Blue
3
Flexible pipe, type PG 7
4
Terminals:
Flag type (4 off)
Flag terminal protector (4 off)
Rod type, 0.75-1 mm
(4 off)
Cables
Ⓒ
are taken out of conduit
Ⓑ
(Fig. 18) and run to the
unit power and control box through pre-punched hole
Ⓓ
, as
shown in Figs. 16, 18 and 19.
