ELECTRICAL EQUIPMENT FACTORY-SET
(A)
ELECTRICAL CONNECTIONS
(B)
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7
ELECTRICAL SYSTEM
ELECTRICAL SYSTEM as set up by the manu-
facturer
Key to Layout (A) - (B)
CMV
- Motor contactor
FR
- Photocell
I1
- Switch: burner off - on
I2
- Switch: 1st - 2nd stage operation
MB
- Terminal strip
MV
- Fan motor
RMO88.53A2 - Control box
RT
- Thermal cut-out
TA
- Ignition transformer
TB
- Burner ground (earth) connection
V1
- 1st stage solenoid valve
V2
- 2nd stage solenoid valve
VS
- Safety solenoid valve
XP1
- Connector for STATUS
NOTE
For remote-reset, connect a push-button switch
(NO) between terminal 3 and neutral of the con-
trol box (terminals 15, 16, 17 and 18).
ELECTRICAL CONNECTIONS
set by installer
Use flexible cables according to regulation EN
60 335-1:
• if in PVC boot, use at least HO5 VV-F
• if in rubber boot, use at least H05 RR-F.
D3229
All the cables to be connected to the burner ter-
minal strip 8)(B) must be routed through the fair-
leads.
The fairleads can be used in various ways. One
example is given below:
1- Pg 13,5
Three-phase power supply
2- Pg 11
Single-phase power supply
3- Pg 11
Control device TL
4- Pg 9
Control device TR
5- Pg 9
Set up for faird lead
6- Pg 11
Set up for faird lead
7- Pg 13,5
Set up for faird lead
D3312