Hoval TopVent GV, Operating Instructions Manual, Page: 26 / 44

8.7 Electrical installation
Caution
Danger of electric shocks. The electrical installation must only be carried
out by a qualified electrician.
Please note the following:
■ Observe the 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.
TopVent ® TG, MG, GV with TopTronic ® C
■ Connect the power supply to the unit control box.
■ Connect the zone bus to the unit control box.
■ TopVent ® MG:
– Make sure that the ground cable is installed in the flange of the fresh air
duct.
■ Option TopVent ® MG:
– Wire up the signal for emergency shut-off (Forced off) to the unit control box.
Temperature sensors
The room air sensor and the fresh air temperature sensor are supplied loose in the
control panel:
■ Install the room air temperature sensor at a representative position in the
occupied area at a height of about 1.5 m. The measured values must not be
distorted by the presence of sources of heat or cold (machines, direct sunlight,
windows, doors, etc.).
■ Install the fresh air temperature sensor at least 3 m above the ground on a
north-facing wall, so that it is protected from direct sunlight. Provide cover for
the sensor and thermally insulate it from the building.
1
3 2
4 5 6 7
8
9
■
1
Unit control box
■
2
Zone bus
■
3
Power supply for TopVent
®
■
4
Power supply for control panel
■
5
Collective alarm
■
6
Fresh air temperature sensor
■
7
Room temperature sensor
■
8
System operator terminal
■
9
Zone control panel
Fig. 17: TopTronic ® C connection diagram
26
TopVent ® TG | GV | MG
Operating instructions
Transport and installation
4 220 656-en-03 4 220 656-en-03