14
| Installation
4.6.4 Electrical connection, components
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.
All electric connections are made in the electrical connection box which can be found in the front of the unit. The hatch
is removed by unscrewing four screws.
Reset the manual overheat protection for Topvex TX/C by pushing the red button on top of the electrical heater frame,
reachable by opening the units door. For Topvex SX/C it is reachable by unscrewing the lower hatch (to the re-heater
battery).
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.
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 (K2) On/Off Pump control water (HW units only, not present in EL-units)
7
Automatic fuse
8
Automatic fuse for heater (EL units only)
9
Contactor (K3) EL heater (EL units only)
10
Manual over heat protection reset (EL units only)
11
TTC El heater control (EL units only)
131677 | A004
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