Lochinvar AMP 200-9, AMP 200-18, AMP 300-9, AMP 300-18, AMP 200-36 Maintenance Manual
...
Cavalier
Electric Water Heater
Installation, Commissioning,
User & Maintenance Instructions
LV 313545 | February 2020
Models:
AMP 200-9
AMP 200-18
AMP 200-36
Models:
AMP 300-9
AMP 300-18
AMP 300-36
AMP 300-54
0313545 R2.0 / 0620 - Changes Reserved
IMPORTANT INFORMATION
!
These instructions must be read and understood before installing, commissioning, operating
or maintaining the equipment.
0313545_AMP_UKUK_V2.0, 03-02-2020 3
Preface
Copyright
Copyright © 2019 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 11.6) for the
warranty provisions.
Liability
User
Lochinvar accepts no liability when the water
heater is not used correctly and requires the user
to:
•
Read this manual carefully and obey the
instructions.
•
Ask your installation engineer for advise
about the use of the water heater.
•
Make sure that the service and maintenance
activities are done by a qualified engineer.
Installation engineer
Lochinvar accepts no liability when the water
heater is not used correctly and requires the
installation engineer to:
•
Read this manual carefully and obey the
instructions.
•
Make sure that the entire water heater
installation complies with the applicable
regulations.
•
Make sure that the water heater is tested
before the installation is taken into use.
•
Explain the correct use to the user.
•
Notify the user when service and
maintenance activities are necessary.
•
Make sure that you hand over all applicable
manuals.
Supplier
The AMP water heater is designed in
accordance with the applicable regulations. The
water heater is delivered with all necessary
documentation to obey these regulations.
Lochinvar accepts no liability for claims from third
parties when:
•
The instructions for the correct installation of
the water heater are not obeyed.
•
The instructions for the correct use of the
water heater are not obeyed.
•
The water heater did not have maintenance at
the correct maintenance interval.
For more information, refer to the General Terms
of Sales. 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.
Compliance
To safely produce domestic hot water, the design
and construction of the AMP water heaters is in
accordance with:
•
The LVD Directive (2006/95/EC)
•
The European Pressure Equipment Directive
•
The European ECO-Design Directive.
•
The European Energy Labeling Directive
Refer to the appendix Declaration of conformity
(see 11.5).
Regulations
The installation of the equipment MUST be in
accordance with the relevant requirements of the
Building Regulations, I.E.E. Regulations and the
bylaws of the local water undertaking.
In addition, the installation should follow the
relevant guidance offered in the following
documents. It is not practical to list all relevant
information due to continuous changes but
emphasis is placed on the following documents,
4
as failure to comply with the guidance given will
almost certainly result in an unsatisfactory
installation:
•
British Standards (BS), especially:
- BS 6700: 1997 - Design, installation,
testing and maintenance of services
supplying water for domestic use with
buildings and their curtilages
- BS 67074: 1989 Part 1 and 2 Application, selection and installation of
expansion vessels and ancillary
equipment for sealed systems
- BS 7671: 2008 - Requirements for
electrical installations, I.E.E. wiring
regulations seventeenth edition
- CP 342: Part 2 1974 - Code of practice for
centralised hot water supply-buildings
other than dwellings
•
CIBSE Guides
•
Clean Air Act
•
H.S.E Guidance
Note
Manufacturer's notes must not be taken in any
way as overriding statutory obligations.
Contact information
In the event of problems with your electricity or
water supply connections or when you have any
comments or questions, please contact your
supplier.
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:
•
A 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.
•
Cross-references to sections, tables, figures
etc. are underlined and written as (see "...").
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 2).
This manual contains the following text styles for
situations that may endanger users/ engineers,
cause damage to equipment or need special
attention:
Note
A note gives more information on a topic.
0313545_AMP_UKUK_V2.0, 03-02-2020 5
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.
Danger
Obey the danger instructions to prevent danger
of serious personal injuries or death, and serious
damage to the water heater.
Table of contents
Preface ............................................................ 3
Copyright .................................................... 3
Trademarks ................................................ 3
Warranty ..................................................... 3
Liability ....................................................... 3
Compliance ................................................ 3
Regulations ................................................ 3
Contact information .................................... 4
About this manual .......................................... 4
Scope ......................................................... 4
Target group ............................................... 4
Notation conventions .................................. 4
User Part.......................................................... 6
1 Introduction .............................................. 6
2 Safety ........................................................ 6
3 Operation .................................................. 7
3.1 Control components.......................... 7
3.2 Status of the water heater ................. 7
4 Use ............................................................ 7
4.1 Turn on the water heater................... 7
4.2 Turn off the water heater................... 8
Installation, Maintenance and Service Part ... 8
5 Introduction .............................................. 8
5.1 About the water heater ..................... 8
5.2 Working principle .............................. 8
6 Safety ......................................................... 8
6.1 Safety instructions ............................. 8
6.2 Instructions on the water heater ........ 9
6.3 Safety devices .................................. 9
6.4 Environmental aspects .................... 11
7 Water heater ............................................ 11
7.1 Structure of the water heater ........... 11
8 Installation ............................................... 11
8.1 Packaging ....................................... 11
8.2 Conditions ....................................... 11
8.3 Installation diagram ......................... 12
8.4 Water connections .......................... 13
8.5 Electrical connections ..................... 13
8.6 Commissioning ............................... 14
8.7 Decommisioning ............................. 14
9 Maintenance ............................................ 14
9.1 Performance check ......................... 15
9.2 Water-side maintenance ................. 15
10 Troubleshooting...................................... 16
10.1 General errors ................................. 16
11 Appendices ............................................. 17
11.1 Technical Data ................................ 17
11.2 Dimensions ..................................... 18
11.3 EcoDesign Data .............................. 19
11.4 Electrical diagram ........................... 20
11.5 Declaration of conformity ................ 23
11.6 Warranty ......................................... 24
6 Installation, Commissioning, User & Maintenance Instructions
User Part
1 Introduction
The AMP water heater stores and heats water
for sanitary purposes.
Cold water enters the tank through the water
inlet (2). The heated water leaves the tank at the
top through the hot water outlet (1). When hot
water is used, the tank of the water heater is
filled with the same amount of cold water.
To operate the water heater, the regulation
thermostat, on each heating element, is used.
Fig. AMP water heater
1. Water outlet
2. Water inlet
2 Safety
Lochinvar cannot be held responsible for
damages or injuries due to to:
•
Failing to follow the instructions provided in
this manual.
•
Carelessness during use or maintenance of
the water heater.
Every user must study the user part of this
manual and must follow the instructions in this
part of the manual strictly. Do not change the
sequence of the described actions. This manual
must be available for the user and service
engineer at all times.
Warning
If you detect a burning smell:
-
Shut off the mains power supply
-
No naked flames! No smoking!
-
Open windows and doors!
-
Warn occupants and leave the building!
-
After leaving the building, alert your installation
engineer.
Caution
Do not store or use chemical substances in the
room where the water heater is installed because
of the risk of explosion and corrosion of the water
heater. Some propellants, bleaching agents and
degreasing agents etc. disperse of explosive
vapors and/or cause accelerated corrosion. If the
water heater is used in a room where such
substances are stored or used, the warranty will
be void.
Caution
Installation, maintenance and service may only
by carried out by a qualified engineer.
Caution
The water heater is not intended for use by
persons with reduced physical, sensory or
mental capacities, or who lack the necessary
experience or knowledge.
When the person responsible for their safety is
supervising or has explained how the water
heater should be used, these persons can use
the water heater.
0313545_AMP_UKUK_V2.0, 03-02-2020 7
Caution
This water heater is not intended to be used by
children. Always supervise children, and make
sure that they do not play with the water heater.
Note
Regular maintenance extends the service life of
the water heater. To determine the correct
service interval, the service and maintenance
engineer must do a check on the water heater
three months after installation. Based on this
check, the best service interval can be
determined.
3 Operation
3.1 Control components
To set the temperature of the AMP water heater,
use the control knob of the regulation thermostat.
Each electric heating element has a regulation
thermostat with a control knob.
3.1.1 Temperature control
With the temperature control knob, of each
regulation thermostat, you can set the desired
water temperature of the water heater (see
4.1.1).
Note
It is not possible to use the temperature control
knob to activate and de-activate the water
heater.
3.2 Status of the water heater
The water heaters has 2 opertaion modes.
3.2.1 Operating modes
The AMP has 2 operating modes:
•
OFF mode (see 3.2.1.1)
•
ON mode (see 3.2.1.2)
3.2.1.1 OFF mode
In the OFF mode the water heater is de-activated.
The main power supply of the water heater is set
to 0.
In the OFF mode the water heater is not
protected against frost.
3.2.1.2 ON mode
In the ON mode the water heater continuously
responds to the heat demand. The electric
heating elements are activated when there is a
heat demand.
4 Use
4.1 Turn on the water heater
Caution
Make sure that the water heater is filled with
water before you turn on the water heater.
To start the water heater:
1. Put the water heater in the OFF-mode
2. Open the door of the water heater.
3. Remove the foam so the controls of the
water heater become visible.
4. Turn the temperature control knob of each
heating element to the desired temperature.
5. Replace the foam over the controls
6. Close the door of the water heater.
7. Turn on the main power supply.
4.1.1 Temperature setting
Note
Changing the set temperature is an operation
that must be carried out by a qualified service
engineer/installer. Before attempting to change
the temperature the appliance must be isolated
from the Electric supply (OFF-mode) before the
door to the controls may be opened.
Temperature in °F
Temperature in °C
120
49
130
54
140
60
150
66
160
71
170
77
180
82
8 Installation, Commissioning, User & Maintenance Instructions
Caution
Preferably the temperature control knob, on each
thermostat, should be set to 60°C.
Harmful scaling and lime build-up will be higher
when using position 65°C and higher. At lower
temperature settings there is a higher risk of high
legionella concentrations in the water.
4.2 Turn off the water heater
2.2.1 Turn off for a short period
To turn off the water heater for less than 2
months, set the water heater in the O FF mode
(see 3.2.1.1).
2.2.2 Turn off for a long period
When the water heater needs to be turned off for
more than 2 months, contact your service and
maintenance engineer to decommission the
water heater.
Installation, Maintenance
and Service Part
5 Introduction
5.1 About the water heater
The AMP water heater is intended for heating
water for sanitary purposes.
The AMP is a electric storage water heater. The
electric heating elements transfer their heat
directly to the water.
5.2 Working principle
Cold water enters the tank through the water
inlet. When the water temperature drops beneath
the set temperature, the electrical heating
elements are activated and the water is heated.
The heating elements directly transfer the heat to
the water and the hot water leaves the tank
through the water outlet.
The tank of the water heater has to be
completely filled during operation. The tank at
least must remain under mains water supply
pressure at any time. Fresh cold water is
immediately added when hot water is drawn from
the water heater. The regulation thermostat on
each heating element, is equipped with a contact
thermostat. This thermostat measures the water
temperature, on the outside of the tank.
6 Safety
6.1 Safety instructions
For safety instructions on the use of the water
heater, refer to Safety (see 2) in the User part of
this manual.
Warning
Installation, maintenance and service must be
carried out by a qualified engineer in compliance
with the national and local regulations.
Warning
This appliance must be installed on a nonflammable floor or surface.
Caution
The water heater may only be moved in an
upright position. After unpacking, make sure that
the water heater is not damaged.
Caution
Fill the water heater completely before use. Dry
firing will damage the water heater.
Note
Any leakage from the tank and/or connections
can cause damage to the immediate
environment or floors below the level of the
installation room. Install the water heater above a
waste water drain or in a suitable metal leak tray.
The leak tray must have an appropriate waste
water drain and must be at least 5 cm deep with
a length and width of at least 5 cm larger than
the water heater.
0313545_AMP_UKUK_V2.0, 03-02-2020 9
6.2 Instructions on the water heater
The water heater has some safety instructions
on its cover:
The text "A pressure relief valve must be
fitted".
The text "Mount the delivered temperature
and pressure valve in this connection".
The text "Check screwed wire connections".
6.3 Safety devices
Safety devices of the water heater:
Float switch
(boil dry protection)
The float switch monitors the water level, approximately halfway up
the tank, above the elements. If there is insufficient water present
in the tank, then the float hangs down (reed-contact open). If the
tank is filled with water then the float is moved upwards by the
water (reed-contact closed).
Overheat thermostat
The overheat thermostat detects the temperature of the water in
the tank. When the temperature become too high (>93°C) the
thermostat locks the elements. The thermostat can be manually
reset (red button) when the temperature of the water is below
20°C.
Safety devices of the installation:
Expansion valve
The expansion valve is a pressure relief valve. The expansion
valve prevents excessive pressure in the tank and back flow of
expansion water into the cold water main supply.
Non-return valve
The non-return valve prevents back flow of expansion water into
the cold water main supply.
Pressure-reducing valve
The pressure-reducing valve reduces the water mains pressure, if
necessary.
Expansion vessel
The expansion vessel is a small tank that is used to protect closed
water systems from excessive pressure, due to thermal expansion
of the water in the tank.
T&P valve
(1)
(Temperature and pressure
relief valve)
The T&P valve is a temperature and pressure relief valve which is
activated when:
- The temperature exceeds 97°C.
- The pressure exceeds 7 bar.
1- All water heaters have a T&P valve connection. Lochinvar recommends to always use a T&P valve.
6.3.1 Boil Dry Protection
The boil dry protection mechanism is a float
switch which monitors the water level
approximately halfway up the tank above the
elements. If there is insufficient water present in
the tank, the float (1) hangs downwards. If the
tank is filled with water then the float is moved
upwards by the water.
6.3.1.1 Working principle
The working principle is as follows: the float arm
moves a magnet that is in contact with a reedcontact, which is located in the black plastic tube
at the end of the float switch. The movement of
the magnet and float arm changes the magnetic
field and the reed-contact is opened or closed.
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