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MicroHeat 1-10 CFEWH SERIES User manual

USER MANUAL
Continuous Flow Electric Water Heater
CFEWH SERIES 1-10
Single Phase CFEWH Series 1-10 Premium Model. Extension pipe cover sold separately.
Hot water just got smarter
www.microheat.com.au
CFEWH SERIES 1-10 | USER MANUAL ©2013 | MicroHeat Technologies Pty Ltd
03
Introduction
Contents
Premium CFEWH
CFEWH SERIES 1-10P
The Exterior Cover includes a
Display showing Output Water
Temperature and Flow Rate.
Standard CFEWH
CFEWH SERIES 1-10S
The Exterior Cover has only a
RED/GREEN Indicator LED.
Congratulations on having the revolutionary, new Continuous Flow Electric Water Heater
[CFEWH] fitted.
This User Manual will help familiarise you with your new hot water system, so please just
take a few moments to read through and understand how you can get the very best from
your appliance.
If you’re interested in technical specifications, we’ve included details about the operational
capacity of the unit in the Operational Parameters section at the rear of this manual.
This User Manual covers SERIES 1-10 Premium and Standard models of the Continuous
Flow Electric Water Heater [CFEWH].
The photographs below allow you to identify which model you have:
Introduction 03
About This Product 04
Getting Started – Premium model 06
Increasing the Water Temperature 06
Decreasing the Water Temperature 06
COLD Setting 06
Using the WATER FLOW RATE 06
About the LED Indicator 07
Error Codes Showing on the LED Indicator 07
Getting Started – Standard model 08
About the LED Indicator 08
Operational Parameters 09
Location 09
Temperatures 09
Maintenance 09
Optimised Energy Usage 10
Warranty 11
AS/NZS 3498
Lic: WMKA22136
Standards Australia
IEC 60335.2.35
T120312_S
AS/NZS 60335.2.35
A/13670EA
E1109-0066-1 C-Tick N29465
The company accepts no responsibility for the failure of this appliance if it has not been installed and operated in accordance with the
instructions provided. The information in this Manual is correct as at April 2013, but the manufacturer reserves the right to make changes to
specifications without prior notice. All information provided E&OE. Copyright © 2013 All Rights Reserved. MicroHeat and its associated logo are
Registered Trademarks of MicroHeat Technologies Pty Ltd. MicroHeat products are manufactured under one or more Patents, which are in force.
The Product is Patent Cooperation Treaty (PCT) Protected, and Trademarks Protected
Patent
Cooperation
Treaty (PCT)
Patent
Protected.
Trademarks
Protected
CFEWH SERIES 1-10 | USER MANUAL ©2013 | MicroHeat Technologies Pty Ltd
04 05
What makes this product so unique
and different?
The Continuous Flow Electric Water Heater [CFEWH]
uses innovative new technology to deliver hot water
instantly … and achieve impressive efficiencies in both
water and energy usage.
We’d like to explain how it’s so different from other hot
water systems – and why it’s setting completely new
standards.
To fully appreciate the difference – and the substantial
benefits – offered by the technology used in this water
heater, we need to start off by comparing the main
deficiencies of traditional hot water systems.
Heating water the traditional way
Traditional centralised hot water services consume
continuous energy to heat water and then maintain it
at a defined (thermostat-controlled) temperature, ready
for when it’s wanted. Typically, the water heater is
located away from where the water is wanted, relying on
lengths of pipe to deliver the water. Energy is therefore
wasted keeping quite a large volume of water at a stable
temperature – often at a higher temperature than would
ever be used.
But that’s not all – water is wasted every time a hot water
tap is turned on. That’s because you need “to let the
water run” until the water held in the pipes has made way
for the hot water you want, coming from the water heater.
The overall result is quite inefficient usage of power
together with wastage of water.
The MicroHeat difference
The engineers at MicroHeat set out to create something
completely different from existing methods of providing
hot water: a highly efficient new method of heating water
that would address the wastage of valuable resources –
energy and water.
The Continuous Flow Electric Water Heater [CFEWH]
is a very compact unit, which provides an instant and
continuous flow of hot water wherever it’s required –
delivered through very short lengths of pipe. Water isn’t
wasted, because you’re not leaving it running, waiting for
it to get hot. Hot water is always at a stable temperature,
despite any fluctuations in water pressure.
You don’t need a science degree to understand how the
efficiencies and savings are achieved – all you need to do
is follow our simple explanation.
The secret of “optimised” energy
The unit intelligently optimises the amount of energy it
needs to heat water, depending on how much water you
want.
For example, let’s assume hot water is required at 45°C.
If you want a fairly fast flow of water – 4 litres a minute –
the unit will use its full power – 9.6kW – to heat the water.
However, if you only want a low flow of water – 1.5 litres a
minute – the unit will use just 4.2kW to heat the water.
The benefit is the unit can intelligently vary itself between
being a 9.6kW and 4.2kW system. The lower flow rate
achieves 56% less energy consumption – and that
contributes to lowering power bills.
In addition, varying the flow rate of the water contributes
to lower water consumption and achieves further savings.
Reducing water flow from 4 litres a minute to 1.5 litres a
minute lowers water consumption by 66%.
Incoming water temperature makes
a difference
The unit also achieves savings in another area – by
intelligently varying its power between 9.6kW and 7kW
to heat incoming cold water.
Depending on where you’re located and what season
it is, mains cold water temperature could potentially
fluctuate anywhere between 10°C and 25°C.
Let’s again assume hot water is required at 45°C and you
want a fairly fast flow of hot water – 4 litres a minute.
If the incoming water temperature is a fairly chilly 10°C,
the unit will apply its full power of 9.6kW – however, if it’s
a pleasantly warm 25°C, it will only use 7kW. That’s 20%
less energy consumption – making a further contribution
towards lowering power bills.
We hope you now have a better
understanding of how the Continuous
Flow Electric Water Heater [CFEWH] is
revolutionising hot water.
About This Product
Hot water just
got smarter
Although the Continuous Flow Electric Water Heater [CFEWH] is very safe to
use, this appliance is not intended for use by persons (including children) with
reduced physical, sensory or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision or instruction concerning
use of the appliance by a person responsible for their safety. Children should
be supervised to ensure that they do not play with the appliance.
About the Continuous Flow Electric Water Heater [CFEWH]
IMPORTANT
The unit does not contain any user-serviceable parts. In case of malfunction, please contact us
on 03 9681 7088 and arrange for a trained MicroHeat Technician to rectify the problem.
CFEWH SERIES 1-10 | USER MANUAL ©2013 | MicroHeat Technologies Pty Ltd
0706
To optimise your energy usage with this unit, we
suggest you follow these guidelines, which are
based on the cold water entering the unit at 10°C:
Temperature: 45°C
Flow rate: 4 LPM
You’ll find a full chart in the Operational Parameters
section at the rear of this Manual.
What does the LED indicator tell me?
The LED indicator on the Exterior Cover indicates
the operational status of the unit, based on these
options:
LED indicator not illuminated:
No electricity is being supplied to the unit.
Slow flashing GREEN:
Standby mode, waiting for water to be turned on.
Fast flashing GREEN:
The unit is operating and water is being heated.
Flashing RED:
The unit is self-diagnosing an error that it will
attempt to resolve. When the error has been
resolved, the LED will return to slow or fast flashing
GREEN.
RED continuously showing:
Mechanical Lockout Mode (Irresolvable Error). This
means you’ll need to contact us on 03 9681 7088
and arrange a MicroHeat Service Technician to
rectify the problem.
What happens if there’s an
error code showing on the LED
indicator?
If the unit experiences some type of malfunction, the
LED indicator will also display an error code. You will
see Er appear in the TEMP SETTING window and
then an alpha-numerical code in the WATER FLOW
RATE window.
For example – this shows error code A6:
The error codes are used by a MicroHeat Service
Technician to accurately diagnose the cause of a
malfunction.
Getting Started – Premium modelGetting Started – Premium model
Guided Tour of the Premium model
If you have had a chance to look at your unit and
you recognise that it’s the Premium model, we’d like
to give you a short guided tour.
The unit will automatically begin operating when you
turn on a hot water tap, and water is flowing faster
than 1.5 litres a minute.
The first step is to understand how to set the output
water temperature.
You can vary the temperature manually between
a minimum of 20°C and the maximum settable
temperature, which is 50°C.
Want to increase the water
temperature?
By pushing the UP arrow of the TEMP SETTING, you
will increase the temperature by 1°C – you can give
this one push at a time to do this, or keep it pressed
and the temperature will rise continuously until you
reach the temperature you want. Remember – the
maximum temperature is 50°C.
Want to decrease the water
temperature?
By pushing the DOWN arrow of the TEMP SETTING,
you will decrease the temperature by 1°C – you
can give this one push at a time to do this, or
keep it pressed and the temperature will decrease
continuously until you reach the temperature you
want. Remember – the minimum temperature is 20°.
COLD Setting
By pushing the DOWN arrow of the TEMP SETTING,
one push at a time, or continuously, you’ll eventually
reach 20°C. This is the COLD setting, where the
output water temperature will not be heated to
above 20°C.
How do I use the WATER FLOW
RATE?
The display shows the water flow rate in litres per
minute (LPM in technical jargon). The minimum
flow rate that can be displayed is 0.1 LPM and the
maximum displayed is 99 LPM.
The unit is a fully optimised water heater and will
maintain a consistent water temperature even if
there is fluctuating water pressure or changes in
temperature of the incoming water. This avoids the
hot and cold water taps being constantly adjusted,
and reduces the duration of usage.
If you are concerned about using hot water as
energy-efficiently and cost-efficiently as possible,
you should keep flow rates and usage of water to
a minimum.
Indicator LED.
Output Water
Temperature
Setting Display.
Decrease &
Increase Push
Button.
Flow Rate Display.
IMPORTANT
The unit does not have any user-serviceable components internally, and must not be opened.
If an irresolvable error condition is present and an error code is displayed please call a MicroHeat
Service Technician on
03 9681 7088
.
WARNING
In accordance with AS 3498, this appliance will not deliver temperatures exceeding 50°C.
Water temperatures greater than 50ºC can cause scalding. Care should be taken with children
and people with limited sensory, physical, and/or mental capability.
CFEWH SERIES 1-10 | USER MANUAL ©2013 | MicroHeat Technologies Pty Ltd
0908
Operational ParametersGetting Started – Standard model
Guided Tour of the Standard model
If you have had a chance to look at your unit and
you recognise that it’s the Standard model, we’d like
to give you a short guided tour.
The unit will automatically begin operating when you
turn on a hot water tap, and water is flowing faster
than 1.5 litres a minute.
The output temperature of the water has been pre-
set at 50°C and this cannot be adjusted.
There are no manual controls – the LED indicator
will provide information to you about the operational
status of the unit.
What does the LED indicator tell me?
The LED indicator on the Exterior Cover indicates
the operational status of the unit, based on these
options:
LED indicator not illuminated:
No electricity is being supplied to the unit.
Slow flashing GREEN:
Standby mode, waiting for water to be turned on.
Fast flashing GREEN:
The unit is operating and water is being heated.
Flashing RED:
The unit is self-diagnosing an error that it will
attempt to resolve. When the error has been
resolved, the LED will return to slow or fast flashing
GREEN.
RED continuously showing:
Mechanical Lockout Mode (Irresolvable Error). This
means you’ll need to contact us on 03 9681 7088
and arrange a MicroHeat Service Technician to
rectify the problem.
Indicator LED.
Location
The appliance has an IP44 rating, which means
that the appliance is adequately protected from
the ingress of water. However, it is required that
the appliance be installed within a dwelling or
construction where there is a decreased likelihood
of water entering the cover of the unit.
Temperatures
As the unit is intended for internal installation, it
should not be in an environment where there is a
possibility of the ambient temperature dropping
below 5°C.
IMPORTANT
Where the ambient temperature is likely to
approach freezing – ie: less than 5°C – the
unit must be drained of water to prevent
frozen water damage occurring.
Failure to comply with the installation and
operating instructions or improper use voids
the warranty.
If a drop in temperature below 5°C occurs,
or is considered likely to occur, please call
a
MicroHeat Service Technician on
03 9681 7088.
Maintenance
The unit is designed to provide long and reliable
service. Actual life expectancy will vary with water
quality and use. The unit itself does not require any
regular maintenance.
However, to ensure consistent water flow, it is
recommended that a licensed plumber should
periodically remove scale and dirt that may build
up in the Inlet Filter of the unit, the faucet or in the
shower head.
IMPORTANT
Other than the inlet filter, the unit does not
contain any user-serviceable parts. In case
of malfunction, please call a MicroHeat
Service Technician on 03 9681 7088.
IMPORTANT
The unit does not have any user-serviceable components internally, and must not be opened.
If an irresolvable error condition is displayed, please call a MicroHeat Service Technician on
03 9681 7088.
WARNING
In accordance with AS 3498, this appliance will not deliver temperatures exceeding 50°C.
Water temperatures greater than 50ºC can cause scalding. Care should be taken with children
and people with limited sensory, physical, and/or mental capability.
CFEWH SERIES 1-10 | USER MANUAL ©2013 | MicroHeat Technologies Pty Ltd
1110
WarrantyOperational Parameters
CFEWH SERIES 1-10 240VAC
Input water temperature @ 5°C
Warm water flow rate ltrs/min 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Deliverable output water temperature °C 50.0 50.0 50.0 50.0 42.0 39.5 35.5 32.5
Optimised energy usage – kW 4.7 6.3 7.8 9.4 9.5 9.6 9.6 9.6
Input water temperature @ 10°C
Warm water flow rate ltrs/min 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Deliverable output water temperature °C 50.0 50.0 50.0 50.0 50.0 45 40.5 37.5
Optimised energy usage – kW 4.2 5.6 7.0 8.4 9.6 9.6 9.6 9.6
Optimised Energy Usage
The table below shows the flow rate in litres per minute (ltr/min), related to deliverable output water
temperature (°C) and optimised electrical energy usage (kW).
The table shows you the results that can be achieved by varying the water flow and temperature.
The optimum operational capability of the unit is shown in RED.
Warranty
WARRANTY FOR MICROHEAT TECHNOLOGIES PTY LTD CONTINUOUS FLOW ELECTRIC HOT WATER
HEATER (CFEWH) SERIES.
For the MicroHeat Technologies Pty Ltd Continuous Flow Electric Water Heater SERIES (“CFEWH”), MicroHeat will repair or, if necessary,
at its sole discretion, replace the CFEWH, which falls within the Warranty Periods and Territory specified below, subject to the warranty
conditions and the warranty exclusions.
Warranty Period within Australia, New Zealand and Papua New Guinea is 3 years from the date of purchase by the consumer as defined
by the Competition and Consumer Act 2010 (Cth).
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or
refund for a major failure and for compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the
goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
It is the responsibility of the consumer to provide proof of purchase within the Territory.
WARRANTY CONDITIONS
1. This warranty is applicable only for CFEWH appliances.
2. The CFEWH must be installed in accordance with the
MicroHeat CFEWH Installation Instructions, to be supplied with
the CFEWH water heater, and in accordance with all relevant
statutory and local requirements of the Country or State in which
the CFEWH is installed.
3. Where a failed component or CFEWH is replaced under
warranty, the balance of the original warranty period will remain
effective. The replaced part or CFEWH does not carry a new
warranty.
4. Where a failed component or CFEWH is replaced or repaired
under warranty, MicroHeat will incur all associated costs.
However, where the CFEWH is installed outside the boundaries
of a metropolitan area to be defined by MicroHeat or further than
35 km from an Accredited Service Agent, the cost of transport,
insurance and travelling costs between the nearest MicroHeat
Accredited Service Agent’s premises and the installed site shall
be the owner’s responsibility.
5. Where the CFEWH is installed in a position that does not allow
safe, ready access, the cost of accessing the site safely, including
the cost of additional materials handling and/or safety equipment,
shall be the owner’s responsibility.
6. The warranty only applies to the CFEWH and therefore does
not cover any plumbing or electrical parts supplied by others and
not an integral part of the CFEWH, e.g. pressure limiting valve;
tempering valves; isolation valves; shut off valves; electrical
switches; electrical cabling; pumps or fuse.
7. The benefits of this warranty are in addition to other rights and
remedies of the consumer under laws in relation to the goods and
services to which the warranty relates.
8. The CFEWH must be sized to supply the hot water in
accordance with the guidelines in the MicroHeat CFEWH
literature.
PROCEDURE FOR HONOURING WARRANTY
1. To initiate a claim for a warranty against defects, the consumer
shall contact:
MicroHeat Technologies Pty Ltd
Unit 6, 38-42 Sabre Drive
PORT MELBOURNE VIC 3207
AUSTRALIA
Phone: (03) 9681 7088
2. The process will then follow the MicroHeat Product Warranty
Flow Chart to assess whether the product is under warranty.
WARRANTY EXCLUSIONS
Repair and replacement work will be carried out as set out in
the MicroHeat warranty. However, the following exclusions may
cause the MicroHeat warranty to become void and may incur a
service charge and/or cost of parts:
1. Accidental damage to the CFEWH or any component, including:
Acts of God; failure due to misuse, abuse, fire or flood damage;
incorrect installation; damage as the result of transportation,
removal or storage; attempts to repair the CFEWH other than by
a MicroHeat Accredited Service Agent, the MicroHeat Service
Department or a repairer not approved by MicroHeat.
2. Where it is found there is nothing wrong with the CFEWH
water heater; where the complaint is related to circumstances
where there is no flow of hot water due to faulty plumbing;
where water leaks are related to plumbing and not the CFEWH
or CFEWH components; where there is a failure of electricity or
water supplies; where the supply of electricity or water does not
comply with relevant standards, codes or acts, MicroHeat may
then charge the consumer a nominal service charge if inspection
reveals no fault with the CFEWH unit or its installation.
3. Where the CFEWH or CFEWH component has failed directly
or indirectly as a result of excessive water pressure in excess
of 10bar; incorrect pressure limiting valves; incorrect tempering
valve settings; temperature input in excess of 85ºC and/or
excessive thermal input; blocked outlet; corrosive atmosphere;
foreign matter in the water supply; or ice formation in the pipe
work to or from the CFEWH water heater.
4. Where the CFEWH is located in a position that does not
comply with the MicroHeat CFEWH Installation Instructions
or relevant statutory requirements, causing the need for major
dismantling or removal of cupboards, doors or walls, or use of
special equipment to bring the CFEWH to a serviceable position.
5. Repair and/or replacement of the CFEWH due to the effects
of either corrosive water or water with a high chloride or low pH
level caused by unnatural circumstances or when the CFEWH has
been connected to a water supply with water conductivity levels
that are outside the range of water conductivity outlined in the
Installation Instruction Manual.
Subject to any rights you have under Australian Consumer Law
or other statutory provisions to the contrary, this warranty
excludes any and all claims for damage to furniture, carpets,
walls, foundations or any other consequential loss either directly
or indirectly due to leakage from the water heater, or due to
leakage from fittings and/or pipe work of metal, plastic or other
materials caused by water temperature, workmanship or other
modes of failure.
For technical support or more information
phone 03 9681 7088
DISTRIBUTED BY:
ISSUE 2 April 2013
Hot water just got smarter
MicroHeat Technologies Pty Ltd
Unit 6, 38-42 Sabre Drive
PORT MELBOURNE VIC 3207
AUSTRALIA
www.microheat.com.au

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