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Alpha Evoke 28NX User Manual

Alpha Evoke 28NX
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Installation and Servicing
Instructions
Evoke 28NX and 33NX
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: 0344 871 8764
website: www.alpha-innovation.co.uk
Leave these instructions with the User
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 2023.
Part No. 1.046746 rev. ST.006691.000
0223/D448
Alpha Evoke 28NX G.C. No. 47 532 84
Alpha Evoke 33NX G.C. No. 47 532 86
Alpha Evoke 28NX LPG G.C. No. 47 532 85
Alpha Evoke 33NX LPG G.C. No. 47 532 87
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Alpha Evoke 28NX Specifications

General IconGeneral
Boiler TypeCombi
MountingWall Mounted
ERP Heating Efficiency93%
DHW Output (kW)28
Output28 kW
Efficiency93%
FuelNatural Gas
TypeCombi

Summary

Installation and Servicing Instructions Overview

Boiler Model and Support Information

Details the Evoke boiler models and provides contact information for support.

Benchmark Scheme Compliance

Installer Responsibilities and Standards

Outlines installer duties, standards of work, and customer service guidelines.

Introduction to Alpha Evoke Boilers

Boiler Description, Gas Types, and Regulations

Overview of boiler features, approved gas types, and installation regulations.

Safety Symbols and Precautions

Understanding Hazard Symbols and PPE

Explains safety symbols and required personal protective equipment.

Technical Performance Data

Performance Specifications (Natural Gas & LPG)

Details performance metrics for both Natural Gas and LPG fuel types.

Physical Data, Flue, and Pump Specifications

Boiler Dimensions, Clearances, and Flue Requirements

Physical specifications, installation clearances, and flue requirements.

Pump Operation Modes and Performance

Details on pump functionality and performance curves.

Electrical Connections and Data Annotation

Electrical Wiring and Supply Requirements

Details mains connection, wiring requirements, and safety.

Data Badge Information

Explains the information displayed on the boiler's data badge.

Boiler Schematic and Component Identification

Illustrated Boiler Schematic and Component List

Visual guide to boiler components and a list identifying them.

General Boiler Information and Installation Requirements

Gas, Electrical, and Air Supply Requirements

Guidelines for gas, electrical, and air supply connections.

Flue System Installation and Guidelines

Covers flue system setup, lengths, bends, and configuration options.

Flue Terminal Location and Safety Guidelines

Terminal Position Requirements and Notes

Specifies minimum distances and considerations for flue terminal placement.

Flue Duct Proximity and Boiler Location

Flue Duct Boundary Clearances and Boiler Mounting

Rules for flue proximity to boundaries and boiler installation location.

Central Heating System Setup and Filling

CH System Design and Filling Procedure

Design considerations for the central heating system and filling steps.

System Flushing and Condensate Disposal

Heating System Flushing and Condensate Management

Procedures for flushing the heating system and managing condensate.

Domestic Hot Water System Requirements

DHW Supply Specifications and Pipework

Details on DHW flow rate, pressure, hardness, and pipework.

Installation Procedures - Initial Steps

Boiler Unpacking, Clearances, and Wall Preparation

Initial steps including unpacking, required clearances, and wall preparation.

Boiler Fitting and Pipework Connection

Fitting Boiler and Connecting System Pipework

Securing the boiler to the bracket and making hydraulic connections.

Flue Turret Installation

Fitting the Flue Turret and Seals

Steps for installing the flue turret and ensuring proper sealing.

Flue System Installation Procedures

Flue Length Calculation and Assembly

Calculating flue length and assembling flue sections.

Flue Installation Methods

Details on fitting the flue from inside or outside the building.

Extending the Flue System

Flue Extension Guidelines and Side Flue Assembly

Rules for flue extensions and specific assembly for side flues.

Optional Plume Management Components

Plume Management Configuration Options

Options for managing flue plume emissions.

Electrical Connections and Boiler Controls Installation

Connecting Mains Supply and Installing Controls

Electrical hookup and fitting of optional external controls.

Boiler Control System Configuration

Installing Clocks, Thermostats, and Weather Compensation

Setup for various control types and external temperature sensors.

Boiler Commissioning Procedures

System Filling, Controls, and Gas Safety Checks

Essential commissioning steps including system filling and gas safety checks.

Initial Boiler Lighting and Operation Modes

Boiler Startup and Mode Selection

How to start the boiler and select operating modes.

Special Operating Modes and Features

Details on solar and weather compensation operating modes.

Boiler Operation: Heating and Hot Water

CH, DHW Priority, Frost Protection, and Pump Cycle

Explains core operational functions, priority, frost protection, and pump cycle.

Combustion Checks, Final Assembly, and User Information

Combustion Checks, Final Assembly, and Handover

Post-installation checks, final assembly, and user information handover.

Information Menu and LPG Conversion

Accessing Information Menu and LPG Conversion

Viewing boiler status data and converting the unit for LPG fuel.

CO2 Setup and Combustion Calibration

CO2 Setup Procedure for Calibration

Steps for adjusting CO2 levels for optimal combustion.

PCB Programming and Parameter Settings

Accessing Programming Menu and Parameters

How to access and navigate the programming menu.

Boiler Parameter Tables and Descriptions

Lists and explains all configurable parameters.

Routine Servicing and Combustion Checks

General Servicing Requirements and Combustion Testing

Key checks and performance testing during routine service.

Servicing Preparation and Casing Removal

Servicing Preparation and Casing Panel Removal

Notes before servicing and steps to remove casing panels.

Boiler Internal Cleaning Procedures

Preparation and Cleaning of Key Components

Steps for preparing the boiler and cleaning internal parts.

Component Replacement and Boiler Re-assembly

Replacing Manifold Seals and Re-assembling Boiler

Procedures for replacing manifold seals and reassembling the boiler.

Location of Boiler Components

Boiler Component Diagram and Labels

Visual guide showing the location of various boiler components.

Component Replacement Procedures

General Access, Draining, and Replacing Key Parts

Procedures for accessing, draining, and replacing electrodes, burner, and fan.

Replacing Sensors, PCB, and Gas Valve

Replacing Sensors, Fuse, PCB, and Gas Valve

Procedures for replacing electronic, sensor, and gas valve components.

Replacing Water System Components

Replacing Condensate Trap, Flow Switch, and Heat Exchanger

Procedures for replacing water-related components.

Replacing Various Boiler Components

Replacing Diverter Valve, Vessel, and Insulation

Replacing Diverter Valve, Expansion Vessel, and Insulation

Procedures for replacing diverter valve, expansion vessel, and insulation.

Wiring Diagram and Component Identification

Illustrated Wiring Diagram and Component Key

The main electrical diagram and its key for understanding connections.

Troubleshooting and Error Code Reference

Initial Fault Finding and Error Code Diagnosis

Initial checks and a table of error codes with causes.

Short Parts List

Boiler Components and Alpha Part Numbers

List of boiler parts with their corresponding Alpha part numbers.

Energy Classification and Technical Parameters

Technical Parameters for Evoke 28NX and 33NX

Specific technical data for both Evoke boiler models.

Product Data Sheets and Energy Labels

Evoke 28NX and 33NX Energy Labels

Energy efficiency labels and data for both boiler models.

Room Heating System Assembly Chart

Calculating Seasonal Space Heating Efficiency

Guidance on calculating seasonal space heating energy efficiency.

Room Heating System Assembly Chart Details

Filling the Room Heating System Assembly Chart

Instructions for completing the room heating system assembly chart.

Parameters for Assembly Chart Filling

Specific parameters required for assembly chart calculations.

Domestic Hot Water Production System Assembly Chart

Calculating Domestic Hot Water Energy Efficiency

Guidance on calculating domestic hot water energy efficiency.

Benchmark Commissioning Checklist

Checklist Items for Controls, Systems, and Compliance

Key points to check for installation and operation compliance.

Service Record and Maintenance Log

Service Provider Information and Log Entries

Details about the service engineer and recording maintenance history.

Important Notes and Optional Controls

Boiler Location, Flue, Mains Failure, and Safety Notes

Key installation and safety considerations.

Heating and Hot Water Temperature Control

Setting DHW Temperatures and CH Control with Weather Compensation

Adjusting DHW temperatures and using weather compensation.

Boiler Operation and Controls

Boiler Startup, Mode Selection, and Operation Explanation

Initial boiler startup, mode selection, and explanation of operation.

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