4.7.2.1 Electrical connection box, Components
Topvex SC03-11 are equipped with a built in regulator and internal wiring.
The figure shows the electrical connection box for the Topvex SC03-11 units.
Fig. 14 Electric components
Position
Description
1
Regulator E-283 WEB
2
Transformer 230/24V AC
3
Terminals for internal and external
components
4
Terminals for internal wiring
5
Terminals for mains supply to the unit
6
Contactor (K1)
7
Contactor (K2) On/Off Pump control water
(HW units only, not present in EL-units)
8
Automatic fuse
9
Automatic fuse for heater
10
Contactor (K3) EL heater
11
TTC El heater control
Installation instructions
207575
16
Systemair Sverige AB