Worcester 24I RSF

Supplied By www.heating spares.co Tel. 0161 620 6677
24i RSF
WALL MOUNTED COMBINATION BOILER FOR CENTRAL HEATING
AND MAINS FED DOMESTIC HOT WATER
INSTALLATION AND
SERVICING INSTRUCTIONS
GC NUMBERS
N.G. 47 311 37 L.P.G. 47 311 38
BOILER OUTPUT
To Domestic Hot Water – Modulated Control
Minimum 7.5 kW (25,600 Btu/h)
Maximum 23.4 kW (80,000 Btu/h)
To Central Heating – Modulated Control\
Auto Range Rated
Minimum 7.5 kW (25,600 Btu/h)
Maximum 23.4 kW (80,000 Btu/h)
THESE INSTRUCTIONS APPLY IN THE UK ONLY
THESE INSTRUCTIONS ARE TO BE LEFT WITH THE USER OR AT THE GAS METER
This appliance must be installed by a competent person in accordance
with the Gas Safety (Installation and Use) Regulations 1998

Worcester 24I RSF Specifications

General

Model	24I RSF
Category	Boiler
Output	24 kW
Fuel Type	Natural Gas
Mounting	Wall-mounted
Warranty	2 years
Type	Regular
Hot Water Flow Rate	11 L/min

Summary

Installation Requirements

1.1 Gas Safety Regulations

Specifies installation by a competent person as per regulations.

General Information

Benchmark Initiative Explained

Explains the Benchmark initiative for boiler installation, commissioning, and servicing.

2.5 Electrical Supply Specifications

2.6 Gas Supply Requirements

2.13 Safety Considerations

Lists crucial safety precautions for operation and maintenance.

Open Vent System

Unsuitability for Open Vent Systems

Clear statement that the appliance is unsuitable for open vent systems.

Electrical

10.1 Mains Supply Specifications

10.4 Mandatory Earthing

10.11 Electrical Safety Checks

Electrical safety checks required after installation or fault.

Commissioning The Appliance

12.2 Appliance & CH System Preparation

Set System Pressure

Commissioning The Appliance (Continued)

12.4 Appliance Operation Tests

Detailed steps for testing domestic hot water and central heating modes.

Inspection And Service

14.1 Servicing Frequency and Importance

Importance and frequency of servicing.

14.2 Pre-Service Inspection Steps

Inspection And Service (Continued)

14.3 Appliance Dismantling for Service

Steps for dismantling the appliance to access components for service.

Replacement Of Parts

15.1 Important Safety Note for Replacement

Safety note to switch off supplies before replacing parts.

15.3 Draining the Appliance Circuits

Operational Flow Diagrams

1. Central Heating Mode Sequence

Flowchart detailing the central heating operational sequence.

Operational Flow Diagrams (Continued)

2. Domestic Hot Water Mode Sequence

Flowchart detailing the domestic hot water operational sequence.

Fault Finding

A Central Heating Fault Diagnosis

Diagnostic flowchart for central heating faults.

B Domestic Hot Water Fault Diagnosis

Diagnostic flowchart for domestic hot water faults.

Fault Finding (Continued)

C No Mains LED Fault Diagnosis

E Overheat Thermostat Check

Procedure for checking and resetting the overheat thermostat.

H Thermistor Check

Modulating Valve Check

Diagnostic steps for the modulating valve.

D Flashing Mains LED Fault Diagnosis

F Pump Check Procedure

I Harness Continuity Check

O Flow Switch Check

Fault Finding (Continued)

K Ignition Check Procedure

Diagnostic steps for ignition problems.

Fault Finding (Continued)

L Air Pressure Switch Check

Diagnostic steps for the air pressure switch.

M Gas Valve Check

Diagnostic steps for the gas valve.