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Worcester Greenstar i Series

Worcester Greenstar i Series
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UK/IE
INSTALLATION, COMMISSIONING AND SERVICING INSTRUCTIONS
WALL HUNG RSF GAS FIRED CONDENSING SYSTEM BOILER
GREENSTAR i SYSTEM
6720643895-00.1Wo
FOR SEALED CENTRAL HEATING SYSTEMS AND INDIRECTLY FED DOMESTIC HOT WATER
6 720 804 532 (2012/09)
The appliance is for use with Natural Gas or
L.P.G. (Cat II 2H3P type C13, C33 & C53)
Model GC Number
Natural Gas 12i System 41-311-67
15i System 41-311-84
18i System 41-311-86
24i System 41-311-68
Liquid Petroleum Gas 12i System 41-311-69
15i System 41-311-85
18i System 41-311-87
24i System 41-311-70

Table of Contents

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Worcester Greenstar i Series Specifications

General IconGeneral
ModelGreenstar i Series
MountingWall-mounted
Maximum Working Pressure3 bar
Fuel TypeNatural Gas
Dimensions400mm (W)
WarrantyUp to 10 years
EfficiencyUp to 94%
Heating Flow Temperature Range30°C to 80°C
Output Rating35kW

Summary

Key to Symbols and Safety Precautions

Key to Symbols

Describes warning symbols and important information indicators used throughout the manual.

Safety Precautions

Outlines immediate actions and general safety rules for gas safety.

Pre-Installation

Mains Supply

Covers electrical supply requirements and gas supply connection standards.

Condensate Pipe Work

Explains requirements for condensate drainage and disposal methods.

Boiler Location and Clearances

Outlines requirements for boiler placement and necessary clearances.

Flue Options

Details available flue types and their maximum lengths.

Flue Terminal Positions

Specifies minimum clearances for flue terminals to prevent hazards.

Installation

Boiler Connections

Details on connecting water, gas, and condensate pipes to the boiler.

Flue Installation

Instructions for fitting the flue system, including measuring and assembly.

Condensate Connection

Explains how to connect the condensate drain pipe to the syphon.

Commissioning

Pre-Commissioning Checks

Initial checks before starting the commissioning process.

Filling the System

Procedure for filling the heating system with water and venting air.

Commissioning

Detailed procedure for checking gas inlet pressure and rate.

Service and Spares

Inspection and Service

General guidance for annual inspection and servicing of the boiler.

Check the Gas Inlet Pressure

Procedures for verifying the gas supply pressure.

Flue Gas Analysis

Procedure for conducting combustion tests using a flue gas analyser.

Setting the AirGas Ratio

Instructions for adjusting the air-to-gas mixture for optimal combustion.

Gas Valve

Steps for removing and replacing the gas valve.

Heat Exchanger

Procedure for removing and cleaning the heat exchanger.

Fault Finding and Diagnosis

Fault Finding

Table of common faults, their indicators, and possible solutions.

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