BA-REF
6.1 - 11/2019
English
EN-15/26
Inspection switch present if applicable.
Note separate operating instructions BA-ESR_NI DV for devices with
integrated frequency inverter
Table 8-1:
General diagram of roof
fans
1 Cowl
2 Cable
duct
3 Terminal
box
4 Inspection
switch
(optional)
5 Side
panel
6 Outer
member
7 Casing
8 Outlet
guard
9 Integrated frequency
inverter for type
RDM 3E/FE - BI/4P/6P
RHM
FDM
1
2
3
4
5
RDA 21
RDM 3E / FE
RVM F1
1.
Remove cowl (1).
1.1 . Dismantle outlet guard (RVM) (8)
2.
Lock the impeller for highly efficient permanent magnet motors
Measures taken to prevent roof fan from starting suddenly.
3.
Remove side panels on following models
3.1. FDM model - undo outer member (6) and lift off or raise and prop up securely
3.2. RDA 21/ RDM 3E/RDM FE models remove side panel (5)
3.3. RVM: undo casing (7) and lift off or raise prop up securely (large sizes)
4.
Run connection cable through cable duct in base frame (2) to terminal box (3) or inspection switch
(4) or frequency inverter (9).
5.
On RDM 3E/RDM FE models lay mains power cable loosely to allow the central section to be
swung back easily.
6.
In the vicinity of the impeller fix the cable to the support arm with cable clips (RDM 3E/RDM FE),
and fix the cable to the guard and/or handle using cable ties.
7.
Refit outer member (FDM) and side panels (RDA 21/ RDM 3E/RDM FE).
8.
Connect motor as shown on connection diagram supplied resp. integrated frequency inverter (see
separate operation manual BA-ESR_NI-DV)
9.
Fit cowl (1) and outlet guard (RVM and FDM) (8).
10.
Ensure that all the electrical safety devices have been fitted and connected.
11.
Connect motors with a nominal output >4 kW to star-delta or soft start.
