27
Installation instructions
ENGLISH
ATTENTION:
The 230 V cables must run far apart from 24V
cables.
Danger!
Only a qualified technician may perform the
electrical installation.
Electrical connection to the main power sup-
ply.
This connection must be made up to standard, as
required by regulations in force.
remember that a bipolar switch must be installed
on the boiler power line with over 3 mm between
contacts, easy to access, making maintenance
quick and safe.
Electric power supply connection
The power supply of the boiler, single-phase 230
V - 50 hz, must be made with h05VV-f type
three-pole cable
(PhASe - neuTrAl - eArTh)
with 0.75 mm section up to 1.5 mm.
ATTENTION!
respect the PhASe and neuTrAl polarity
since flame detection is Phase Sensitive.
- make the power supply connection on the
“D”
plug, sup-
plied with the boiler.
N.B. 24 v - 230 v output -
Keep the 2 voltages separate
Summary of Contents for MODULEX EXT Series
Page 1: ...e n G l I S h INsTALLATION AND MAINTENANCE INsTRUCTIONs 348 440 550 660 770 900 moduleX eXT...
Page 25: ...25 Installation instructions E N G L I S H PAGE LEF T INTEN TION ALL Y BLANK...
Page 30: ...30 PAGE LEF T INTEN TION ALL Y BLANK...
Page 34: ...34 ON ON OFF 10V ON 10V Wilo Stratos modulating pump setting ext input enabling 0 10 V...
Page 51: ...51 Installation instructions E N G L I S H PAGE LEF T INTEN TION ALL Y BLANK...
