Hamworthy Purewell Variheat mk2 180c User Manual

Purewell Variheat mk2 c Boilers
Cast Iron, Pre-mix, Condensing, Modular Boilers with
Automatic Ignition for Heating and Domestic Hot Water
Installations
Installation, Commissioning
and Servicing Instructions
MODELS - 70c, 95c, 110c, 140c & 180c
NATURAL GAS I
2H
IMPORTANT NOTE
THESE INSTRUCTIONS MUST BE READ
AND UNDERSTOOD BEFORE INSTALLING,
COMMISSIONING, OPERATING OR
SERVICING EQUIPMENT

Hamworthy Purewell Variheat mk2 180c Specifications

General

Brand	Hamworthy
Model	Purewell Variheat mk2 180c
Category	Boiler
Language	English

Summary

Installation, Commissioning and Servicing Instructions

2.0 SUPPLY AND DELIVERY

4.0 SITE LOCATION AND PREPARATION

4.1 Site Location.

4.2 Gas Supply.

Standards and requirements for gas supply installation.

4.3 Flues

Regulations and recommendations for flue system design and installation.

4.4 Water Supply

4.5 Condensate Connections

4.6 ELECTRICAL SUPPLY

Safety and installation guidelines for electrical supply.

5.0 BOILER ASSEMBLY

6.0 PRE-COMMISSIONING

6.1 Gas Supply.

6.3 Pipework, Valves and Pump

6.4 Flue

6.5 Electrical

7.0 CHECKS PRIOR TO LIGHTING

7.1 Boiler Gas System Leak Check

Procedure for checking the boiler gas system for leaks.

7.2 Checks Prior to lighting the boiler

Pre-lighting checks including gas supply and mains connection.

7.3 INITIAL LIGHTING

Step-by-step guide for the initial lighting of the boiler.

7.4 Combustion Checks

Procedures for checking and adjusting combustion performance.

8.0 BOILER CONTROLS

8.1 CONTROLS OVERVIEW

General overview of the Navistem boiler controller and its components.

8.2 DISPLAY

8.3 - Functions

9.0 FAULT FINDING

9.1 Safety Temperature Limiter (Limit Thermostat)

Troubleshooting the safety temperature limiter.

9.2 Ignition Controller

Fault finding related to the burner ignition controller.

11.0 REPLACEMENT OF FAILED COMPONENTS

11.1 Igniter and Flame Probe Assembly

Procedure for replacing the igniter and flame probe assembly.

11.2 Safety Temperature Limiter (Limit Stat)

Steps to replace the safety temperature limiter.

11.3 Main Gas Valve.

Recommended procedure for replacing the main gas valve.

11.4 Combustion Fan

Instructions for removing and replacing the combustion fan.

APPENDIX A - GAS DATA

APPENDIX B - ELECTRICAL CONNECTIONS AND CONTROLS

APPENDIX C - FLUE DATA

C1.0 FLUE SYSTEM

C1.1 General Requirements

C1.9. Condensate Discharge

APPENDIX D - VENTILATION

D1.1 Air Supply

APPENDIX E - WATER DATA

E1.1 Water Circulation System

E1.2 Minimum System Water Pressure

E1.3 Pressure Relief Valve (Safety Valve)

Boiler Parameter Settings: Single Boiler

Boiler Parameter Settings: Multiple Boilers

Sequence control using integral Master and Slave configuration

Boiler Parameter Settings: Multiple Boilers With External Merley Boiler Sequence Controller