Lochinvar HWHC 44-370 G CE Guide

Installation, Commissioning,
User & Maintenance Instructions
LV 311746 | October 2022
0311746 R2.6 / 4222 - Changes Reserved
Models:
HWHC 44-370 G CE and PG CE
HWHC 63-370 G CE and PG CE
EcoCharger Hybrid
Gas Fired Condensing
Water Heater with
Intergrated Coil

These instructions must be read and understood before installing, commissioning, operating
or maintaining the equipment.
IMPORTANT INFORMATION
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Preface
Copyright
Copyright © 2016 Lochinvar Ltd.
All rights reserved.
Nothing from this publication may be copied, reproduced and/or published by means of
printing, photocopying or by whatsoever means, without the prior written approval of
Lochinvar Ltd..
Lochinvar Ltd. reserves the right to modify specifications in this manual.
Trademarks
Brand names in this manual are registered trademarks of their respective owners.
Warranty
Refer to the appendix Warranty (see section 12.9) for the warranty provisions.
Liability
Lochinvar accepts no liability for claims from third parties caused by:
unauthorized use
use other than stated in this manual
use other than in accordance with the General Conditions registered at the Chamber
of Commerce.
For more information, refer to the General Conditions. These are available on request, free
of charge.
We believe that this manual provides you with accurate and complete descriptions of all
relevant components. If you, nonetheless find errors or inaccuracies in this manual, please
inform Lochinvar. This helps us to further improve our documentation.
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Compliance
To safely produce domestic hot water, the design and construction of the HWHC water
heaters is in accordance with:
the European Regulations 2016/426 on appliances burning gaseous fuels (GAR).
the European Standard for Gas–fired storage water heaters for the production of
domestic hot water (EN89).
The European ECO-Design Directive.
The European Energy Labeling Directive
Refer to the appendix Declaration of conformity.
Regulations
It is law that all gas appliances are installed by competent persons, in accordance with The
Gas Safety (Installation and Use) Regulations 1998. Failure to install appliances correctly
could lead to prosecution. It is in your own interest, and that of safety, to ensure that this
law is complied with. The installation of the equipment MUST be in accordance with the
relevant requirements of the Gas Safety Regulations, Building Regulations, I.E.E.
Regulations and the bylaws of the local water undertaking. The installation should also be
in accordance with any relevant requirements of the local gas distributor and local
authority.
In addition the installation should follow the relevant guidance offered in the following
documents. It is not practical to list all relevant information but emphasis is placed on the
following documents, as failure to comply with the guidance given will almost certainly
result in an unsatisfactory installation:
BS EN 1858: 2008 + A1: 2011
Chimneys. Components. Concrete flue blocks.
BS 5440-1: 2008
Flueing and ventilation for gas appliances of rated input not exceeding 70 kW net
(1st, 2nd and 3rd family gases). Specification for installation of gas appliances to
chimneys and for maintenance of chimneys.
BS 5440-2: 2009
Installation and maintenance of flues and ventilation for gas appliances of rated input
not exceeding 70 kW net (1st, 2nd and 3rd family gases). Specification for
installation and maintenance of ventilation for gas appliances.
BS 6644: 2011
Specification for Installation of gas-fired hot water boilers of rated inputs between 70
kW (net) and 1.8 MW (net) (2nd and 3rd family gases).
BS 6700: 2006 +A1: 2009
Design, installation, testing and maintenance of services supplying water for
domestic use within buildings and their curtilages.
BS 6880: 1988 Parts 1, 2 and 3
Code of practice for low temperature hot water systems of output greater than 45
kW.
BS 7074: 1989 Parts 1 and 2
Application, selection and installation of expansion vessels and ancillary equipment
for sealed systems.
BS 7671: 2008 + A1: 2011
Requirements for electrical installations, I.E.E. wiring regulations seventeenth
edition.
BS 7671: Amendment 2: August 2013
CP 342 (Part 2 1974):
Code of practice for centralised hot water supply-buildings other than dwellings.
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Institute of Gas Engineers and Managers (IGEM) Publications
IGE/UP/1 - Edition 2:
Installation pipework on industrial and commercial premises.
IGE/UP/2:
Gas installation pipework, boosters and compressors on industrial and commercial
premises.
IGE/UP/4 - Edition 3:
Commissioning of gas-fired plant on industrial and commercial premises.
IGE/UP/10 - Edition 3:
Installation of flued gas appliances in industrial and commercial premises.
Gas Safety (Installation and Use) Regulations 1998
CIBSE: Guides
Part A Environmental Design
Part G Public health engineering
H.S.E. guidance
INDG 436 Safe management of industrial steam & hot water boilers
SAFED BG01Guidance on safe operation of boilers
Third edition of the 1956 Clean Air Act Memorandum on Chimney Heights
Note
Manufacturer's notes must not be taken in any way as overriding statutory obligations.
Contact information
In the event of problems with your gas, electricity or water supply connections or when
you have any comments or questions, please contact your supplier.
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About this manual
Scope
This manual gives information about safe and correct use of the water heater and how
installation, maintenance and service activities have to be done correctly. You must obey
the instructions in this manual.
Caution
Read this manual carefully before you start the water heater. It can cause personal injury
and damage to the water heater when you do not read the manual and/or do not obey
the instructions.
The purpose of this manual is to:
describe the working principles and layout of the water heater
explain the safety devices
highlight possible hazards
describe the use of the water heater
describe the installation, service and maintenance of the water heater
This manual has two parts:
An User part that describes the correct usage of the water heater.
An Installation, Maintenance and Service part, that describes the correct installation
and maintenance procedures.
Target group
The information in this manual applies to three target groups:
users
installation engineers
service and maintenance engineers
The User part is intended for the (end) users. The Installation, Maintenance and Service
part is intended for the installation engineers and the service and maintenance engineers.
Notation conventions
This manual uses the following text conventions:
Numbers between parentheses e.g. (1), refer to elements in a figure that are
described by the text.
Texts displayed on the user interface always are shown similar to the characters in
the display, for example WEEK PROGRAM, SETTINGS.
Buttons are always shown between brackets, for example: [ ], [ENTER], [RESET].
Cross-references to sections, tables, figures etc. are underlined and written as (see
section "..."). In the digital version, the cross-references function as hyperlinks that
can be used to navigate through the manual by clicking on them. Example: Safety
(see section 2).
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This manual contains the following text styles/symbols for situations that may endanger
users/engineers, cause damage to equipment or need special attention:
Note
A note gives more information on a topic.
Caution
Obey the caution instructions to prevent damage of the water heater.
Warning
Obey the warning instructions to prevent danger of personal injury, and serious damage
to the water heater.
Document identification
Article number Language Version
0311746 EN 2.6
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Table of Contents
Preface........................................................................................ 3
Copyright.......................................................................... 3
Trademarks....................................................................... 3
Warranty...........................................................................3
Liability.............................................................................3
Compliance....................................................................... 4
Regulations....................................................................... 4
Contact information............................................................ 5
About this manual....................................................................... 7
Scope............................................................................... 7
Target group..................................................................... 7
Notation conventions.......................................................... 7
Document identification.......................................................8
User part.................................................................. 13
1 Introduction.............................................................................. 15
2 Safety........................................................................................17
3 Interface................................................................................... 19
3.1 Operator interface............................................................ 19
3.2 Explanation of icons.......................................................... 19
3.3 Control switch.................................................................. 20
3.4 Buttons........................................................................... 20
3.5 PC connection.................................................................. 21
3.6 Status of the water heater................................................. 21
3.6.1 Operating modes.............................................................. 21
3.6.2 Error conditions................................................................22
3.6.3 Service conditions.............................................................23
3.6.4 Anode warning................................................................. 23
3.6.5 Q/T Sensor warning.......................................................... 23
3.6.6 Collector temperature warning........................................... 23
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4 Use............................................................................................ 25
4.1 Turn on the water heater...................................................25
4.1.1 The appliance's heating cycle............................................. 25
4.2 Turn off the water heater...................................................27
4.2.1 Turn off for a short period..................................................27
4.2.2 Isolate from the mains...................................................... 27
4.2.3 Turn off for a long period...................................................28
4.3 Main menu...................................................................... 28
4.3.1 Notation conventions for menu-related instructions............... 29
4.3.2 Switching to ON mode.......................................................29
4.3.3 Setting the water temperature........................................... 29
4.3.4 Week program................................................................. 30
4.3.5 Starting and stopping the week program............................. 30
4.3.6 Changing the appliance's standard week program................. 30
4.3.7 Adding times to a week program........................................ 33
4.3.8 Deleting times from a week program...................................34
4.3.9 Extra period.....................................................................35
4.3.10 Settings.......................................................................... 37
Installation, Maintenance and Service part.............. 41
5 Introduction.............................................................................. 43
5.1 About the water heater..................................................... 43
5.2 The appliance's heating cycle............................................. 43
5.3 Working principle..............................................................43
5.4 Operating cycle................................................................ 45
6 Safety........................................................................................47
6.1 Safety instructions............................................................47
6.2 Instructions on the water heater.........................................48
6.3 Safety devices..................................................................49
6.3.1 Protection for the water heater...........................................49
6.3.2 Safety of the installation....................................................50
6.3.3 Protection for the solar heating system................................50
6.3.4 Safety of the solar heating system...................................... 51
6.4 Environmental aspects...................................................... 51
6.4.1 Recycling.........................................................................51
6.4.2 Disposal.......................................................................... 52
7 Installation............................................................................... 53
7.1 Packaging........................................................................53
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