Alpha CD28C User Manual

User's
Instructions
Alpha CD25C/28C/35C
Alpha CD25C G.C. No. 47 532 31
Alpha CD28C G.C. No. 47 532 33
Alpha CD35C G.C. No. 47 532 35
British Gas
Service Listed
For use with Natural Gas only
Leave these instructions with the User
Range of Wall Mounted, Fan Assisted, Room Sealed,
Gas Fired, High Efficiency Condensing Combination Boilers
0051
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
For Technical help or for Service call ...
ALPHA HELPLINE Tel: 0870 3001964
website:www.alpha-innovation.co.uk

Alpha CD28C Specifications

General

ERP Rating	A
DHW Output (kW)	28
Flow Rate (l/min)	11.4
Max Working Pressure	3 Bar
Central Heating Circuit	Yes
Domestic Hot Water Circuit	Yes
Boiler Type	Combination

Summary

Description and Boiler Specifications

Boiler Types and Capacities

Details the range of Alpha CD high efficiency condensing combination boilers and their heating loads.

Boiler Safety and Operation Indicators

Indicator Neons

Explains the meaning of different neon light combinations for boiler status.

Overheat Thermostat

Pressure Relief Valve

Frost Thermostat

Lighting and Operation Instructions

Initial Setup and Boiler Lighting

Provides step-by-step instructions for initial boiler setup and lighting.

Boiler Operation Modes

Explains how the boiler operates for domestic hot water and central heating.

Important Notes and Regulations

Boiler Location and Clearances

Gas Leak and Electrical Supply

Safety procedures for gas leaks and details on electrical connection.

Clock Operation and Gas Safety

Gas Safety Regulations

Highlights legal requirements for gas appliance installation and servicing.

Setting the Time and Periods

Fault Finding and Troubleshooting

Simple Checks for Common Issues

Guides users through basic troubleshooting steps before contacting service.

Indicator Light Troubleshooting

Contacting Technical Support