400896 Topvex FR Installation Instructions

Installation instructions
Systemair Inc.
9
Topvex FR800, FR1600, FR3800
3.4.1 Electrical Connection Box, Components
Topvex FR800-3800 are equipped with a built in regulator and internal wiring (gure 8)
Fig. 8 Electrical components
Table 6: Description of electrical components
Note:
For pre-heater components, please refer to the “Pre-Heater installation instructions (420353).
Note:
Electric heater section. (Present in EL units
only)
1
9825
4
3 7
6
11
10
12
13
Position Description
1 Controller E-28 (UC)
2 Transformer 208-230/24VAC (TR24)
3 Terminals for internal and external components (TB3)
4 Terminals for internal wiring (TB2)
5 Terminals for main power voltage to the unit (TB1)
6 Contactor (K1) On/Off rotor motor
7 Contactor (K3) On/Off control of EL heater (EL units only)
8 Automatic fuse (AS1)
9 Automatic fuse for heater (AS2) (EL units only)
10 Automatic over heat protection reset (EL units only) (OT1)
11 Manual over heat protection reset (EL units only) (ET1)
12 TTC EI heater control
13 Fuse holders F1 and F2