Glow-worm Micron 50FF User Manual

2000225227C.04.05
All replacement parts
All labour charges
All call-out charges
Thank you for installing a new Glow-worm appliance in your home.
Glow-worm appliances' are manufactured to the very highest standard so we are pleased
to offer our customers' a Comprehensive First Year Guarantee.
We recommend you complete and return your Guarantee Registration Card as soon as possible.
If this card is missing you can obtain a copy or record your registration by telephoning Glow-worm's own service
organisation on 01773 828100.
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Fanned Flue Boiler
This is a Cat I
2H
Appliance
Reference in these instructions to British Standards and Statutory
Regulations/Requirements apply only to the United Kingdom.
For Ireland the current edition of I.S.813
"Domestic Gas Installations" must be used.
To be left with the user
7319
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Instructions for Use
Installation and Servicing
G.C. No. 41-047-48
REGISTER YOUR GLOW-WORM APPLIANCE
FOR 1ST YEAR GUARANTEE PROTECTION
CALL 0800 073 2142
Micron
50FF
Glow-worm
Nottingham Road, Belper, Derbyshire. DE56 1JT
General/Sales enquiries:
Tel: (01773) 824141 Fax: (01773) 820569
www.glow-worm.co.uk
Tel: (01773) 828100
Fax: (01773) 828070
The instructions consist of three parts, User, Installation and Servicing Instructions.
The instructions are an integral part of the appliance and must, to comply with the current issue of the
Gas Safety (Installation and Use) Regulations, be handed to the user on completion of the installation.

Glow-worm Micron 50FF Specifications

General

Brand	Glow-worm
Model	Micron 50FF
Category	Boiler
Language	English

Summary

Important Information

Testing and Certification

Boiler tested to EN483 for safety and performance. No alterations allowed.

Information for Installer and Service Engineer

Instructions for Use

Safety Temperature Limiter

Procedure for reset if overheat safety limiter operates.

Protection Against Freezing

Maintenance

Installation - 1 General

Statutory Requirements

Installation must comply with UK/IE regulations and British Standards.

1 General

Gas Supply

Gas installation requirements in GB (BS6891) and IE (I.S.813).

Location

Electrical Supply

Boiler must be earthed; connection in accordance with BS7671 and local regulations.

Boiler Clearances

Minimum operational and servicing clearances required around the boiler.

2 Flue and Ventilation

Terminal Position

Minimum acceptable siting dimensions for the flue terminal.

Flue Options

3 Water Systems

Frost Protection

Sealed Water Systems

Installation requirements for sealed water systems.

Safety Valve

Requirements for fitting a preset, nonadjustable safety valve.

Expansion Vessel - Sealed Systems Only

Guidance on diaphragm type expansion vessels for sealed systems.

Pressure Gauge - Sealed Systems Only

Domestic Hot Water Cylinder

4 Flue and Appliance Preparation

Flue Position and Length

Determining flue application, length, and terminal position.

Flue Preparation

Rear Flue Fixing

Rear, Top and Side Flue Application

Top, Side Flue Fixing

5 Boiler Installation

Rear Flue Fixing

Steps for fitting fan elbow, retaining clamp, and flue duct.

Gas Connection

Making the gas connection and testing installation for soundness.

Boiler Preparation

Top, Flue Fixing

Testing

Electrical safety checks, insulation resistance, earth continuity, and polarity tests.

Mounting the Boiler

Procedure for fitting blanking plate, flue spigot, and securing the boiler.

Water Circulation System

Electrical Connection

Wiring instructions, including earthing and cable securing.

6 Commissioning

All Systems

Commissioning procedure for all systems, including flushing and filling.

Testing - Electrical

Checks for fan operation, ignition sequence, and flame supervision.

Sealed Water Systems Only

Testing - Gas

Testing for gas soundness, burner gas pressure, and gas rate.

Initial Lighting and Testing

Procedure for initial lighting, testing gas cock, and electrical supply.

Testing - All Water Systems

8 Servicing

Products of Combustion Check

Procedure for obtaining products of combustion reading using an analyser.

Servicing

Operational Checks

Burner

Cleaning Heat Exchanger Flueways

9 Fault Finding

Electrical

Importance of repeating earth continuity, polarity, and short circuit checks after work.

LED Fault Coding

Table detailing LED status and corresponding fault conditions.

Electrical Supply Failure

10 Replacement of Parts

Electrode

Air Pressure Switch

Electrical Thermistor

Procedure for replacing the electrical thermistor.

Multifunctional Control

Procedure for replacing the multifunctional control unit.

Fan

Safety Temperature Limiter

Procedure for replacing the safety temperature limiter.

Solenoid

Control Board (PCB)

Procedure for replacing the control board (PCB).