Euro-C 4000 RJL-GBEN
18/26
Figure 11 : View of the Control Compartment
Legend :
1. Flame senor
2 LC1 limit control (without
reset)
3. Electrical wiring panel
4. Reset lockout signal lamp
5. Differential pressure switch
6. Burner control relay or
ignition
controller
7. Flue gas extractor for
combustion products
8. Electrical connectors
9. Time delay relay
10 Fuseholder with fuse
11 Differential pressure point
12 Combination gas valve with
pressure regulation
13 Manifold & injectors
14 Ignition electrode
15 Relay K1.1 (not for UK/IE)
Relay K1.2 (not applicable on
EURO-C 4000 RJL)
16 Relay main ventilator (not
applied on EURO-C 4000
RJL)
17 Electronic net filter
18 LC3 max limit controller with
manual reset
19 3VA separation transformer
(not for UK/IE)
20 Fan control relay
21 Tube burner
7.2 Burner injectors
1. Carry out steps 1 to 8 of section 7.1.
2. Unscrew the main burner injectors.
3. Re-fit new injectors.
4. Re-assemble in reverse order.
7.3 Ignition system
To access the ignition system, follow steps 1 to 3
in section 7.1.
Ignitor -
refer to figure 11 and locate the ignitor (on
the side of the burner rack). Disconnect the wire,
remove the screw and the ignitor. Clean with an
emery cloth.
Note: Spark gap must be maintained to 3.0 mm
(see figure 12a). Figure 12b shows how the ignitor
must be installed.
IMPORTANT: When re-assembling the earth wire
must remain attached to the ignitor
CAUTION: Due to high voltage on the spark wire
and electrode, do not touch when energised. See
hazard levels.
Flame sensor -
Refer to figure 11 and locate the
flame sensor. Disconnect the wire, remove the
screw and the flame sensor. Clean with an emery
cloth.
Ignition controller -
The enclosed integrated circuit
monitors the operation of the burner including
ignition. Do not attempt to dismantle the ignition
controller. Each heating season lead wires should
be checked for insulation deterioration and good
connections.
Proper operation of the direct spark ignition system
requires a minimum flame current of 1,0
:
A when
measured with a micro ammeter.
For further information and checkout procedure of
the direct spark ignition system, refer to the
manufacturers control operating instructions a copy
of which is supplied with the air heater.
Fig. 12a - Ignitor assembly
Fig. 12b : Installing the ignitor