VAI3-WN-I_EN - 07/14 - Vaillant
- 17 -
INSTALLATION
EN
11.4 Electric connection to the outdoor unit
a
WARNING!
Danger of breakdowns or malfunction. If the fuse on
the PC board is blown please change it with type
T. 25A/250V.
Fig. 11.2 Electric connection to the outdoor units 3-025 WNO and
3-035 WNO.
Fig. 11.3 Electric connection to the outdoor unit 3-050 WNO.
• Remove the protective covering in front of the electrical
connections in the outdoor unit.
• Loosen the screws in the cable retainer and fully insert the
cable ensuring the cable sheath extends past the cable
retainer before tightening the screws to clamp the cable.
a
WARNING!
Danger of malfunction and breakdowns resulting from
water penetration.
Always terminate the interconnecting cable from below
the cable entry to avoid water penetration into the
terminal box
.
a
WARNING!
Danger of malfunction and breakdowns resulting from
short-circuits.
• Check the cable retainer is sufficiently tight to avoid undue
strain on the connections.
• Check that the cables are correctly secured and connected.
• Replace the protective wiring cover.
