British Gas RD 628 User Manual

RD 628
WALL MOUNTED COMBINATION BOILERS FOR CENTRAL HEATING
AND MAINS FED DOMESTIC HOT WATER
INSTALLATION AND
SERVICING INSTRUCTIONS
This appliance is for use with Natural Gas GC NUMBER 47 108 14 (N.G.)
GB
APPLIANCE OUTPUTS
Domestic Central Heating
Hot Water
Minimum 8.1 kW 8.1 kW
Maximum 28 kW 28 kW
IMPORTANT: THESE INSTRUCTIONS APPLY IN THE UK ONLY
AND MUST BE LEFT WITH THE USER OR AT THE GAS METER
Read the instructions before starting work - they have been written to make
the installation easier and prevent hold-ups.

British Gas RD 628 Specifications

General

Brand	British Gas
Model	RD 628
Category	Boiler
Language	English

Summary

Installation Regulations

Gas Safety and Compliance

Legal requirements and standards for gas appliance installation.

Installation Standards and Responsibility

Compliance with British Standards and installer duties.

Appliance Introduction and Setup

Benchmark Initiative and General Info

Overview of the Benchmark initiative and general appliance details.

Flue, Controls, and System Requirements

Details on flue, controls, water supply, and safety.

Technical Specifications

Boiler Ratings and Mechanical Data

Output, input, pressure, dimensions, weight, and mechanical specs.

Flue, Performance, and Gas Supply Data

Flue specs, performance parameters, and gas supply info.

Installation Procedures

Site Preparation and Mounting

Preparing the site, wall mounting, and manifold assembly.

Flue Assembly and Installation

Steps for assembling and installing the flue system.

Filling Loop Connection

Step-by-step guide to connecting the filling loop.

Commissioning the Appliance

Water Treatment and System Filling

Flushing, treatment, and filling the heating system.

Pressure Settings and Control Setup

Adjusting pressures and setting up controls.

Operational Checks and Testing

Testing DHW, CH, and safety functions post-installation.

Servicing and Component Replacement

Inspection and Routine Servicing

Procedures for inspection, cleaning, and regular maintenance.

Component Access and Replacement

Methods for accessing and replacing internal parts.

Troubleshooting and Fault Finding

Fault Identification and Preliminary Checks

Identifying faults via indicators and performing initial checks.

Diagnostic Flowcharts and Tests

Step-by-step flowcharts for diagnosing and resolving specific appliance faults.