Sime MERIDIAN HE 30 C User Manual

MERIDIAN
HE 30 C
Installation and
servicing instructions
UK
ENSURE THAT THESE INSTRUCTIONS ARE LEFT
FOR THE USER AFTER COMPLETION OF THE
BENCHMARK SECTION
Please read the Important Notice within
this guide regarding your boiler warranty
199838

Sime MERIDIAN HE 30 C Specifications

General

Brand	Sime
Model	MERIDIAN HE 30 C
Category	Boiler
Language	English

Summary

IMPORTANT NOTICE

SAFE HANDLING

Code Of Practice

Standards of Work

Requirements for installers regarding competence, installation, and safety.

Customer Service

Expectations for customer interaction and service provision by installers.

The Benchmark Scheme

Important Information

SIME COMBINATION BOILERS Installer checklist

1 DESCRIPTION OF THE BOILER

1.1 INTRODUCTION

Overview of the Meridian HE 30 C boiler, its technology, and compliance.

1.2 DIMENSIONS (fig. 1)

Visual representation and measurements of the boiler's physical dimensions.

1.3 TECHNICAL FEATURES

Detailed specifications and performance data of the Meridian HE 30 C boiler.

1.4 FUNCTIONAL DIAGRAM (fig. 2)

Schematic diagram illustrating the internal components and connections of the boiler.

1.5 MAIN COMPONENTS (fig. 3)

Identification of key internal components of the boiler with numbered references.

2 INSTALLATION

2.1 ANTI-FREEZE FUNCTION

Explanation of the boiler's anti-freeze feature and its operational conditions.

2.2 FIXING THE WALL MOUNTING BRACKET (fig. 4)

Instructions for securely mounting the boiler bracket to the wall.

2.3 CONNECTING UP SYSTEM

Guidelines for system flushing, connection, and safety valve installation.

2.3.1 Connection of condensation water trap

Procedures for correctly connecting the condensate trap for safe disposal.

2.3.2 Dealing with condensate

Guidance on condensate disposal requirements and potential issues.

2.3.3 Requirements for sealed water systems (fig. 5)

Steps for filling and pressurizing a sealed heating system for boiler operation.

2.4 CHARACTERISTICS OF FEEDWATER

Recommendations for water treatment and system flushing to prevent corrosion.

2.5 INSTALLATION COAXIAL DUCT Ø 60/100 - Ø 80/125 (fig. 6)

Guidelines for installing coaxial flue systems, including lengths and bends.

2.6 INSTALLATION OF SEPARATE DUCTS Ø 80 (fig. 7)

Instructions for installing separate exhaust and air intake ducts.

2.7 POSITIONING THE OUTLET TERMINALS (fig. 9)

Recommended minimum spacing for flue terminals based on building context.

2.9 ELECTRICAL CONNECTION

Requirements for connecting the boiler to the electrical supply, including safety.

2.9.1 Climatic control option

Information on connecting an external temperature sensor for automatic regulation.

2.9.2 External wired controls

How to connect external wired controls like thermostats to the boiler.

2.9.3 Use with different electronic systems

Examples of boiler integration with various electronic control systems.

2.10 BOILER ELECTRICAL (fig. 11)

Detailed wiring diagram and component identification for the boiler's electrical system.

3 CHARACTERISTICS

3.1 CONTROL PANEL (fig. 12)

Overview of the boiler's control panel, display icons, and buttons.

3.2 ACCESS TO INSTALLER'S PARAMETERS

Procedure for accessing and modifying installer-specific parameters and settings.

3.3 EXTERNAL SENSOR (fig. 13)

How external sensors influence boiler output temperature based on climatic curves.

3.5 CARD FUNCTIONING

Description of various functions managed by the boiler's electronic card.

3.6 TEMPERATURE DETECTION SENSOR

Information on temperature sensors and their impact on boiler operation.

3.6 ELECTRONIC IGNITION

Details on the electronic system controlling ignition and flame detection.

3.7 HEAD AVAILABLE TO SYSTEM (fig. 14)

Graph showing the pump's residual head capacity at different flow rates.

3.8 WATER PRESSURE SWITCH (fig. 15)

Function of the water pressure switch and how to rectify low pressure issues.

4 USE, MAINTENANCE (including BENCHMARK) AND COMMISSIONING

4.1 GAS VALVE (fig. 16)

Identification and function of the gas valve component.

4.2 GAS CONVERSION (fig. 17)

Steps for converting the boiler between natural gas and LPG.

4.4 DISASSEMBLING THE SHELL (fig. 19)

Instructions for safely removing the boiler's outer casing for maintenance.

4.5 MAINTENANCE (fig. 20)

General guidelines for regular servicing to ensure efficiency and warranty compliance.

4.5.1 Chimney sweep function (see also 4.8.1)

Procedure for activating and using the chimney sweep function for testing.

4.6 FUNCTIONING ERRORS

Description of boiler error codes, alarms, and troubleshooting steps.

4.7 COMMISSIONING AND ROUTINE SERVICE

Procedures for commissioning and routine servicing by a qualified engineer.

4.8 ROUTINE SERVICE

Requirements and steps for annual boiler servicing to maintain safety and performance.

5 FAULT FINDING

5.1 EARTH CONTINUITY CHECK

Steps to verify electrical earth continuity in the appliance.

5.2 SHORT CIRCUIT CHECK

Procedure to test for short circuits in the electrical system.

5.3 POLARITY CHECK

Method to check the electrical polarity of the appliance.

5.4 RESISTANCE TO EARTH CHECK

Test to measure resistance to earth for electrical safety.

6 REPLACEMENT OF PARTS

6.1 REMOVAL OF BURNER ASSEMBLY

Step-by-step guide for removing the burner assembly.

6.2 REMOVAL OF FAN UNIT

Instructions for safely removing the fan unit from the boiler.

6.3 C.H. THERMISTOR (SM SENSOR)

Procedure for removing and replacing the central heating thermistor.

6.4 D.H.W. THERMISTOR (SS SENSOR)

Steps to remove and replace the domestic hot water thermistor.

6.5 SAFETY STAT

Guide for replacing the safety thermostat component.

6.6 EXHAUST TEMPERATURE SENSOR

Instructions for replacing the exhaust temperature sensor.

6.7 IGNITION ELECTRODE

Procedure for removing and replacing the ignition electrode.

6.8 IONISATION ELECTRODE

Steps for removing and replacing the ionisation electrode.

6.10 GAS VALVE (fig. 24)

Procedure for removing and replacing the gas valve.

6.11 MAIN HEAT EXCHANGER

Instructions for removing and replacing the main heat exchanger.

6.12 PUMP HEAD

Steps for removing and replacing the pump.

6.13 DOMESTIC HEAT EXCHANGER

Guide for removing and replacing the domestic hot water heat exchanger.

6.9 EXPANSION VESSEL

Guide for removing and replacing the expansion vessel.

7 EXPLODED VIEWS

8 APPENDIX A (GUIDANCE HHIC)

1. BACKGROUND

Context on condensate pipe freezing issues and their causes.

2. REVISED GUIDANCE ON CONDENSATE DRAINAGE PIPE INSTALLATION

Updated recommendations for installing condensate drainage pipes to prevent freezing.

2.1 INTERNAL TERMINATION:

Guidance on terminating condensate pipes internally into waste systems.

2.2 USE OF A CONDENSATE PUMP (TO AN INTERNAL TERMINATION):

Procedures for using a condensate pump for internal discharge.

2.3 EXTERNAL TERMINATION:

Measures for external condensate pipe runs to prevent freezing.

9 APPENDIX 2