7.10 Electrical installation
Caution
Danger of electric shocks. The electrical installation is to be carried out only
by a qualified electrician.
Please note the following:
■
Observe all relevant regulations (e.g. EN 60204-1).
■
Choose the dimensions of the cable cross sections in line with the applicable
regulations.
■
Route signal and bus lines separately from mains cables.
■
Make sure the lightning protection system for the units or for the entire building
is planned and carried out by professionals.
■
Provide overload protection equipment on site in the mains connection line of
the zone control panel.
■
Carry out the electrical installation according to the wiring diagram.
■
Secure all connections against working loose.
■
When installing cables, observe the following points:
– Fasten the cables in place with cable mounts and cable ties or with cable
conduits/ducts.
– Use blind rivets.
– Drill holes with a maximum diameter of 5 mm Ø.
–
The maximum drilling depth is 10 mm. Use a drill bit with a depth stop.
–
The maximum load resulting from cable holders and cable guides is 10 kg.
– All access panels must be easily removable.
– Do not drill any holes in the connection module around the connection box
and cable duct leading to the roof unit.
Proceed as follows:
■
Connect the connection box in the below-roof unit to the control block in the
roof unit.
– Unscrew the fan protecting plate.
–
Detach the wiring harness from the below-roof unit frame.
Attention
Danger of damaging the unit: Dropping the cables may damage the
heating coil. Detach the wiring harness carefully.
–
Pull the wiring harness upwards and fasten it using a cable bushing and
a cable clamp.
– Depending on the length of the connection module, the wiring harness has a
little excess length. Fix it with the cable clamps in the roof unit (Fig. 30).
– Connect the cable to the control block according to wiring diagram.
– Screw the fan protecting plate tightly again. To do this, use the supplied
M5 x 16 screws.
■
Connect the power supply to the connection box.
■
Connect the zone bus to the connection box.
■
Connect the unit frame with the foundation earth electrode and attach an
earthing label.
■
Connect the electrical components of the below-roof unit to the connection box
Options
■
Design with 2 Air-Injectors:
–
Install the enclosed supply air temperature sensor in the supply air duct and
wire it up to the connection box.
– Wire up both actuators to the connection box.
Fig. 30:
Fixing the wiring harness in the roof unit
32
RoofVent
®
KG
Operating instructions
Transport and installation
4 220 755-en-00
