VSC OPERATION AND MAINTENANCE INSTRUCTIONS 4 118 0324 2 IOM

6
Topvex FC
Compact Air Handling Unit
Operation and Maintenance Instructions
Document in original language
125918-EN_GB
2015-03-16 A001
Operation and Maintenance Instructions
Systemair AB
Danger
• Make sure that the Mains supply to the unit is disconnected before performing any mainte-
nance or electrical work!
• All electrical connections must be carried out by an authorized installer and in accordance
with local rules and regulations.
Danger
• Make sure that the Mains supply to the unit is disconnected before performing any mainte-
nance or electrical work!
• All electrical connections must be carried out by an authorized installer and in accordance
with local rules and regulations.
2.3 Internal components Electrical connection box
VSC units are equipped with a built in regulator and internal wiring (gure 2).
Fig. 2 Electric components
Position Description
1 Regulator E-28
2 Transformer 230/24V DC
3 Pressure transmiters (Fans, Filters)
4 SSR relay - EL heater
5 Terminals for mains supply to the unit and air dumpers control
6 Main switch
7 Safety contactor
8 Terminals for external components
9 Fans fuses
1 2
5
4
3
6
7 8
9