4.7.2 Electric Connections
All electric connections are made in the electrical connection box which can be found in the front of the unit
(figure 10). The hatch is removed by unscrewing four screws (figure 10).
The unit must not be put into operation before all the electrical safety precautions have been read and
understood. See the enclosed wiring diagram for internal and external wiring.
All external connections to possible accessories are made to terminals inside the electrical connection
box (table 2).
Fig. 10 Opening the electrical connection box
Danger
• Make sure that the Mains supply to the unit is disconnected before performing any maintenance or
electrical work!
• All electrical connections must be carried out by an authorized installer and in accordance with
local rules and regulations.
4.7.2.1 Electrical connection box, Components
Topvex SR/TR are equipped with a built in regulator and internal wiring (figure 11).
The figure shows the electrical connection box for the Topvex TR 09-15 units. The connection box for the
Topvex SR 09, 11 has the same layout and components with the difference that the electrical heater is
situated in a separate compartment.
Topvex SR 09, 11, TR 09-15
Installation instructions
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Systemair AB
