Powrmatic HEMSL 150-18 User Manual

www.powmatic.co.uk
+44 (0) 1460 53535
info@powrmatic.co.uk
Doc Ref: M103 Issue 3.1 Feb 2018
Industrial & Commercial Heating Systems
HEMNVx & SL Heat Exchanger Modules
User, Installation
& Servicing Manual

Powrmatic HEMSL 150-18 Specifications

General

Brand	Powrmatic
Model	HEMSL 150-18
Category	Control Unit
Language	English

Summary

Certificate of Guarantee

To make a claim

How to initiate a warranty claim for the heater.

Conditions of Guarantee

Requirements for maintaining warranty validity.

User Instructions Overview

Pre Installation

Installation

User Instructions - Operations

Checks before lighting the Air Heater

Preliminary checks before ignition.

Lighting the Air Heater

Step-by-step guide for igniting the heater.

Maintenance

HEM-NVx Duties and Dimensions

HEM-SL Duties and Dimensions

Heater Specifications

General Requirements

Electrical Supply

Gas Supply

Fitting the Unit

Module Fitment

Combustion Air Inlet and Flue Outlet

General Identification of Items

Electrical Cable Installation

Wiring Terminal Locations

Single and Dual On/Off/High-Low Burners

Wiring Terminal Locations - Modulating Burners

Wiring Diagrams - Single Burner (ON/OFF)

Wiring Diagrams - Dual Burner (ON/OFF)

Wiring Diagrams - Single Burner (HIGH/LOW)

Wiring Diagrams - Dual Burner (HIGH/LOW)

Wiring Diagrams - Single Burner (Modulation)

Wiring Diagrams - Dual Burner (Modulation)

Commissioning and Testing

Electrical Installation Checks

Verifying electrical safety and connections.

Gas Installation Checks

Ensuring gas supply integrity and purging.

Lighting the Air Heater

Procedure for initial burner ignition.

Shut Off Procedure

Adjustments

Burner Gas Pressures

Setting gas pressure for heat output.

Standard On/Off Unit Adjustments

High/Low Regulator Adjustment

Setting pressures for high/low fire modes.

Adjustments - Modulating Control

Modulating Regulator Adjustment

Setting pressure for modulating burners.

Modulating Interface Board

Adjustments - Control Settings

Flame Current Measurement

Final Soundness Test

Flame Safeguard

Servicing

General Servicing

Main Burner Assembly Removal

Ignition and Rectification Electrodes

Servicing - Component Replacement

Multifunctional Control Replacement

Burner Replacement

Electrode Assembly Replacement

Fault Finding

Exhaust fan does not run

Troubleshooting steps for fan failure.

No spark ignition

Diagnosing issues with the ignition system.

Burner will not light

Steps to resolve burner ignition problems.