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Worcester 25Si User Manual

Worcester 25Si
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10
Fig. 11. Wiring diagram.
Fan
Flame sense
electrode
Air
pressure switch
Spark
electrode
Spark
transformer
Mains in
Link
Control Board
CH sensor
(front of heat
exchanger)
Flow
switch
ST16
2 blue
2 orange
2 brown
brown
blue
blue
brown
2 violet
white
2 red
2 yellow
2
pink
ST12
ST8
ST15
ST1
Pump
Gas valve
Reg
Main
Main
2 green
brown
yellow
Overheat cut-off
device
DHW sensor

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Worcester 25Si Specifications

General IconGeneral
Model25Si
CategoryBoiler
Output25 kW
Efficiency RatingA
Dimensions710mm x 400mm x 330mm
Fuel TypeNatural Gas
Flow Rate10.2 l/min
Boiler TypeCombi
MountingWall-mounted
ERP RatingA
DHW Output25 kW
Hot Water Flow Rate10.2 l/min
Max Working Pressure3 bar
Warranty5 years
CH Output25kW

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