5829
5
GB
3.3
ELECTRICAL CONNECTIONS TO THE BURNER TERMINAL STRIP
(to be carried out by the installer)
FASTENING OF THE ELECTRICAL WIRES
All the wires, which have to be connected to the burner terminal
strip (16, fig. 1) shall pass through the fair leads (17, fig. 1), see
fig. 2.
1
- Pre-heating resistances
three phase supply: . . . . . . . . . . . . . . . . . . . .fair lead Pg 21
2 -
Motor three phase supply: . . . . . . . . . . . . . . . fair lead Pg 16
3
- Single phase supply and
safety thermostat: . . . . . . . . . . . . . . . . . . . . . .fair lead Pg 13.5
4
- Control thermostat: . . . . . . . . . . . . . . . . . . . . .fair lead Pg 13.5
5
- 2
nd
stage thermostat: . . . . . . . . . . . . . . . . . . .fair lead Pg 13.5
6
- Pre-sheared hole
Further prospective signals or controls can be connected to the burner terminal strip by removing the metal weld-
nuts from the pre-sheared holes and inserting a commun fair lead for the passage and the clamping of the leads.
NOTES
- Carry out a safe earth connection.
- Verify the burner stop by opening the boiler thermostat and the burner lock-out by darkening the photore-
sistance.
NOTE
y
Wires of min. 1 mm
2
section.
(Unless requested otherwise by local standards and legislation).
y
For supply at 230V make the triangle connection on the pre-heater and on the motor (the original connection
is “star” for 400V).
TWO STAGE OPERATION
It can be achieved by the control device TR, that controls 2
nd
stage valve, connected to terminals T6 and T8
(removing the bridge).
IN
Manual burner stop switch
MB
Burner terminal strip
H
Remote lock-out signal
TL
Limit control device system
TR
High-low mode control device system
TS
Safety control device system
PRE-HEATING
D2692
CONNECTIONS
D2612
RESISTANCES
230V
400V
A Ampere
10
6
B mm
2
1.5
1.5
C Ampere
16
10
D mm
2
4
2.5
D2676
Fig. 2
