7
ELECTRICAL SYSTEM
ELECTRICAL SYSTEM
as set up by the manu-
facturer
LAYOUT (A)
Burner TECNO 190L
•
Model TECNO 190L leaves the factory preset
for
400 V
power supply.
• If
230 V
power supply is used, change the
motor connection from star to delta and
change the setting of the thermal cut-out as
well.
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
XP4
- 4 pole socket
XP7
- 7 pole socket
NOTE
For remote-reset, connect a push-button switch
(NO) between terminal 4 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.
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 9
Set up for faird lead
3- Pg 11
Set up for faird lead
4- Pg 13,5
Set up for faird lead
ELECTRICAL EQUIPMENT FACTORY-SET
(A)
(B)
D3312
D3229
ELECTRICAL CONNECTIONS
Summary of Contents for TECNO 190-L
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