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INSTALLATION, COMMISSIONING AND SERVICING INSTRUCTIONS
WALL HUNG RSF GAS FIRED CONDENSING REGULAR BOILER
Greenstar Ri Compact
FOR OPEN VENTED AND SEALED CENTRAL HEATING SYSTEMS AND
INDIRECT MAINS FED DOMESTIC HOT WATER
ErP
These appliances are for use with:
Natural Gas or L.P.G.
(Cat. II 2H 3P type C13, C33 & C53)
Model
Natural Gas
27Ri Compact
30Ri Compact
L.P.G.
27Ri Compact
30Ri Compact
If you smell gas:
▶ Well away from the building: call the National Gas Emergency
Service on 0800 111 999.
▶ L.P.G. boilers: Call the supplier's number on the side of the
gas tank.
GC Number
41-406-54
ErP
41-406-56
ErP
41-406-55
ErP
41-406-57
ErP
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Table of Contents
Related Manuals for Worcester Greenstar 30Ri Compact ErP
Summarization of Contents
Key to symbols and safety instructions
Key to symbols
Explains symbols used in the manual for warnings, information, and formatting.
Safety precautions
Details essential safety measures for installation, operation, and specific scenarios like gas leaks.
Health and safety
Covers crucial health, safety, and regulatory aspects including combustion, fittings, servicing, and general precautions.
Regulations
Installation regulations
Details regulations for gas appliance installation in the UK and Ireland.
British standards
Lists relevant British Standard codes of practice for installation.
L.P.G. Installations
Specific regulations for installing LPG appliances.
Irish Standards
Outlines relevant Irish standards for installations.
Timber Framed Buildings
Guidelines for installing boilers in timber-framed buildings.
Potable Water
Requirements for components used in potable water systems.
CH Water
Notes on using treated water for central heating systems.
Appliance Information
Appliance Overview
Overview and features of the Greenstar Ri Compact ErP boiler, including package contents and features.
Layout
Diagram and identification of the main components of the Ri Compact ErP boiler.
Technical Data
Detailed technical specifications and performance data for the Ri Compact ErP.
Energy Efficiency
Product data for energy consumption according to EU regulations.
Pre-installation
Cleaning Primary Systems
Guidance on flushing and cleaning the central heating system before installation.
Mains Supply
Requirements for electrical supply and gas supply connections.
Water Systems and Pipe Work
Details on pipework requirements for heating systems and connections.
Condensate Pipe Work
Instructions for installing condensate drainage pipework.
Internal Condensate Connections
Methods for installing condensate drainage pipes to prevent freezing.
External Condensate Connections
Guidance for routing condensate drainage pipes externally and fitting air breaks.
Boiler Location and Clearances
Requirements for boiler placement, including installation, clearances, compartments, and bathrooms.
Plumbing Manifold
Details on plumbing manifold connections and pipe dimensions.
Flue Options
Overview of available flue systems and their specifications.
Flue Lengths
Details maximum flue lengths for various horizontal and vertical flue systems.
Flue Terminal Positions
Specifies minimum clearances for flue terminal installations to avoid combustion products.
Plume Management Terminal Positions
Details for positioning terminals to manage flue plume and air intake.
Determine Plume Management System Length
Guidance on calculating effective flue and plume management lengths.
INSTALLATION
Unpacking Wall Frame & Ancillary Items
Procedure for unpacking the wall mounting frame and associated accessories.
Wall Mounting Template & Flue Opening
Instructions for using the wall template and drilling holes for flue and mounting.
Unpacking the Appliance
Steps for unpacking the boiler unit itself after removing packaging.
Boiler Connection
Guidance on connecting the boiler to the wall plate and mains supply.
Wall Mounting Plate
Instructions for mounting the boiler wall plate securely.
Gas and Water Connections
Details on connecting gas and water pipes to the boiler.
Hanging the Boiler
Procedure for safely lifting and mounting the boiler onto the wall plate.
Condensate Connection
Instructions for connecting the condensate discharge pipe to the siphon.
Flue Turret/Adaptor Installation
Steps for installing the flue turret or vertical adaptor onto the boiler.
Electrical
Details on electrical connections, wiring centres, and optional controls.
Mounting Optional Plug-in Controls
Instructions for mounting optional controls with the Greenstar wiring centre.
COMMISSIONING
Pre-commissioning Checks
Essential checks to perform before starting the boiler commissioning process.
Filling the System
Procedure for filling vented and sealed central heating systems with water.
Water Treatment
Important information regarding water treatment, inhibitors, and pH levels.
Starting the Appliance
Steps to safely start the boiler and set controls for initial operation.
Setting the Appliance to Service Mode
Procedure to access the boiler's service mode for checks and adjustments.
Commissioning
Key checks and procedures for the final commissioning of the boiler.
Checking the Gas Inlet Pressure
Procedure for measuring and verifying the gas inlet pressure to the boiler.
Checking the Gas Rate and Pressure
How to measure gas rate and check pressures at the gas meter and valve.
Gas Rating Test
Procedure for conducting a gas rating test on the appliance.
Checking for Leaks During Operation
Method for checking gas connections for leaks while the boiler is operating.
CO and Combustion Checks
Mandatory checks for carbon monoxide and combustion efficiency.
Finishing Commissioning
Steps to complete the commissioning process by reassembling the boiler.
Replacing the Outer Case
Instructions for refitting the outer casing of the boiler.
Securing the Control Panel
Procedure for securing the boiler's control panel after servicing.
Fitting the Fascia Flap
How to attach and secure the fascia flap to the boiler front.
Installing the Bottom Panel
Steps for fitting the bottom panel onto the boiler frame.
Service and Spares
Handover
Final handover procedures, including customer instruction and documentation.
Boiler Guarantee
Details of the boiler guarantee terms, conditions, and registration.
Inspection and Service
Routine inspection and servicing tasks for the boiler.
Draining the Boiler
Procedure for safely draining water from the boiler for maintenance.
Checking the Gas Inlet Pressure
Checks to ensure gas working pressures conform to specified values.
Checking Flue Integrity
Procedure for checking the integrity of the flue system and boiler performance.
Component Access
Steps for removing panels to gain access to internal boiler components.
Fan Pressure Test
Test to determine if the heat exchanger requires cleaning or attention.
Setting the Boiler to Maximum
Procedure to set the boiler to its maximum output for testing.
Fan Pressure
Measuring fan pressure with a manometer to assess performance.
Flue Gas Analysis
Procedure for performing flue gas analysis to check combustion.
Cleaning the Heat Exchanger
Instructions for cleaning the boiler's heat exchanger and its components.
Cleaning the Siphon
Procedure for removing and cleaning the condensate siphon.
Cleaning the Primary Heat Exchanger
Method for cleaning the primary heat exchanger channels.
Replacement of Parts
General precautions and procedures for replacing boiler components.
Removing the Outer Case
Steps for removing the outer casing of the boiler to access parts.
Draining the Boiler
Procedure for safely draining the boiler before component replacement.
Siphon Removal
Procedure for removing the siphon for cleaning or replacement.
Primary Sensor (CH NTC)
Instructions for removing and replacing the primary (CH NTC) sensor.
"Maximum Safety Sensor"
Procedure for disconnecting and removing the maximum safety sensor.
Flue Overheat Thermostat
Procedure for removing and replacing the flue overheat thermostat.
Air Pressure Switch
Steps for removing and replacing the air pressure switch assembly.
Auto Air Vent
Instructions for removing and replacing the auto air vent.
Gas Valve
Procedure for removing and replacing the boiler's gas valve.
Fan Assembly
Steps for removing the fan assembly, including Flueway and sump seal replacement.
Air/Gas Flap Valve Assembly
Procedure for removing and replacing the air/gas flap valve assembly.
Ignition Transformer
Instructions for removing and replacing the ignition transformer.
Electrode Assembly
Steps for removing and replacing the spark electrode assembly.
Burner Housing, Burner/Gasket
Procedure for removing and replacing the burner housing, burner, and gasket.
Heat Exchanger
Procedure for removing and replacing the boiler's heat exchanger.
Boiler Return Sensor (NTC)
Instructions for disconnecting and removing the boiler return sensor.
Access to Boiler Control Components
Steps to access internal boiler control components.
Replacing the Heating Control Module (HCM)
Procedure for replacing the Heating Control Module (HCM).
Replacing the Control Unit
Instructions for replacing the complete boiler control unit.
Short Parts List
An illustrated list of common spare parts with part numbers.
Fault Finding and Diagnosis
Fault Finding
Information on identifying and diagnosing boiler faults based on LED flash codes.
Group 1 Fault Codes
Details of Group 1 fault codes, their types, causes, and possible solutions.
Group 2 Fault Codes
Details of Group 2 fault codes, their types, causes, and possible solutions.
Group 3 Fault Codes
Details of Group 3 fault codes, their types, causes, and possible solutions.
Wiring Diagram
Schematic diagram illustrating the boiler's electrical connections.
Boiler Function
Flowchart illustrating the boiler's operational sequence and logic.
Protection Function
Explanation of the boiler's internal protection functions (frost, pump overrun, etc.).
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