Ducting; Fixed Protections; Electric Connection - Desa BG Series Technical Information, Installation And Operating Instructions

A part of the heated air can be sent via ducting to other rooms using the pre-cut hole  ( ø 150 for type 1÷2; ø 300 for
type 3÷7) at the top of the distribution plenum.
1. Pre-cut hole.
2. Fitting with flange (not supplied).
3. Ducting (not supplied).
In order to avoid accidental contact with moving parts, the heater must not be started without any one of the fixed
protections, which are:
• Lower front panel.
• Rear panel.
• Lateral grille panel.
• Burner cover.
Heaters leave the factory internally wired; they need to be connected according to the wiring diagrams on page 9.
The electrical connections must be carried out by professionally qualified personnel and according to current applicable
legislation, using the cable grommets on the control panel and the terminals provided. For the size of the supply line,
refer to the table shown below.
TABLE FOR ELECTRIC SUPPLY LINE SIZING
HEATER Supply Voltage
TYPE
(V-50Hz)
230V 3N~
1
2 230V 3N~
230V 3N~
3
230V 3N~
4
5 400V 3N~
6 400V 3N~
400V 3N~
7
(1) Without burner.
(2) Included in the supply fitted to the heater.
(3) The section of the supply cables ensures a voltage drop of less than 5% for a length of 30 metres.

DUCTING

FIXED PROTECTIONS

ELECTRIC CONNECTION

Rating (1) Max current
taken(1)
(W) (A)
250 2,6
600 6,7
730 7,6
730 7,6
2200 5,2
3000 7,1
4000 9,2
Line fuses Auxiliary
(2) fuses (2)
(A) (A)
10 -
10 -
10 -
10 -
10 2
12 2
16 2
16
Conductor Earthing
section (3)) cable
section (3)
2 2
(mm ) (mm )
1,5 1,5
1,5 1,5
1,5 1,5
1,5 1,5
1,5 1,5
2,5 2,5
2,5 2,5