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Worcester GREENSTAR 25Si User Manual

Worcester GREENSTAR 25Si
65 pages
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UK/IE
INSTRUCTION MANUAL
INSTALLATION, COMMISSIONING & SERVICING
WALL HUNG RSF GAS FIRED CONDENSING COMBINATION BOILER
GREENSTAR 25Si/30Si
FOR SEALED CENTRAL HEATING SYSTEMS AND MAINS FED
DOMESTIC HOT WATER
THE APPLIANCE IS FOR USE WITH
NATURAL GAS OR L.P.G. (Cat II 2H3P TYPE C13, C33 & C53)
NATURAL GAS: 25Si GC NUMBER 47-311-84
30Si GC NUMBER 47-311-85
LIQUID PETROLEUM GAS: 25Si GC NUMBER 47-311-88
30Si GC NUMBER 47-311-89

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Worcester GREENSTAR 25Si Specifications

General IconGeneral
ModelGREENSTAR 25Si
CategoryBoiler
Output25 kW
Fuel TypeNatural Gas
Efficiency RatingA
Dimensions (H x W x D)710 x 400 x 330 mm
Flow Rate10.2 l/min
Boiler TypeCombi
ERP RatingA
MountingWall-mounted
Warranty5 years
Operating Pressure3 bar

Summary

SAFETY & REGULATIONS

SAFETY PRECAUTIONS

Essential safety measures for boiler installation and use.

INSTALLATION REGULATIONS

Compliance requirements with UK/IE gas, electrical, and building codes.

APPLIANCE INFORMATION

TECHNICAL DATA

Detailed performance specifications for Natural Gas and LPG models.

PRE - INSTALLATION

CLEANING PRIMARY SYSTEMS

Procedures for flushing and cleaning the heating system before installation.

INSTALLATION

BOILER CONNECTIONS

Connecting heating, water, and gas pipes to the boiler.

ELECTRICS

Wiring instructions for mains supply and external controls.

COMMISSIONING

COMMISSIONING THE BOILER

Setting boiler to maximum and checking gas inlet pressure.

SERVICING & SPARES

INSPECTION AND SERVICE

Routine checks and servicing procedures for the boiler.

REPLACEMENT OF PARTS

Step-by-step guides for replacing various boiler components.

SETTING THE AIR / GAS RATIO

Procedure for adjusting the gas ratio for optimal combustion.

FAULT FINDING & DIAGRAMS

FAULT FINDING

Troubleshooting guide based on indicator lights and symptoms.

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