Alpha InTec2 25XE User Manual

Installation and Servicing
Instructions
InTec² 25XE and 28XE
Wall Mounted, Fan Assisted, Room Sealed,
Gas Fired, High Efficiency Condensing Combination Boiler
Nepicar House, London Road,
Wrotham Heath, Sevenoaks,
Kent TN15 7RS
For Technical help or for Service call ...
ALPHA HELPLINE Tel: 0844 871 8764
website: www.alpha-innovation.co.uk
Set for use with Natural Gas
Leave these instructions with the User
0051
These instructions have been carefully prepared but we reserve the right
to alter the specification at any time in the interest of product improvement.
© Alpha Therm Limited 2015.
Part No. 1.038088 rev. ST.001590/000
0315/D343

Alpha InTec2 25XE Specifications

General

Boiler Type	Combi
Output Rating	25 kW
Weight	32kg
Fuel Type	Natural Gas
Mounting	Wall Mounted
ERP Efficiency	A
DHW Output (kW)	25 kW
CH Output (kW)	25 kW

Summary

GENERAL BOILER INFORMATION

Supply and Installation Requirements

System Preparation

Guides on filling, flushing, and pressurising the heating system and condensate disposal.

INSTALLATION

Pipework, Flue, and Controls Installation

Guides on connecting pipework, installing the flue, and fitting controls.

COMMISSIONING

System Preparation and Checks

Boiler Operation and Calibration

ROUTINE SERVICING

Servicing Procedures and Checks

Boiler Access, Cleaning, and Reassembly

COMPONENT REPLACEMENT

Access, Draining, and Major Component Replacement

WIRING DIAGRAM

Illustrated Wiring Diagram

A detailed diagram showing all electrical connections and component identification.

ERROR CODES AND FAULT FINDING

Fault Code Reference

A comprehensive table listing error codes, faults, descriptions, and possible causes.

GAS BOILER SYSTEM COMMISSIONING CHECKLIST

Checklist Sections and Compliance

Details sections to complete on the commissioning checklist and installation compliance.

SERVICE RECORD

Service Record Entries

IMPORTANT NOTES

Installation and Safety Guidelines

Covers boiler location, flue terminal, mains failure, cleaning, servicing, gas leak, electrical supply, and safety regulations.

OPERATIONAL FAULTS

Fault Code Display and Reference

Explains the fault code display and provides a table of operational faults and causes.

HEATING AND HOT WATER TEMPERATURE

Temperature Control and System Filling