Gledhill Response A-Class PulsaCoil User manual

User
Instructions
In the interest of continuously improving the PulsaCoil
A-Class range. Gledhill Water Storage Ltd reserve the
right to modify the product without notice and in these
circumstances this booklet which is accurate at the time
of printing should be disregarded.
Gledhill oer a minimum of a 1 year warranty on the
water storage vessel and components for material and
construction faults from the date of purchase.
WARNING
• There are no user adjustable parts inside the appliance.
Tampering with sealed components will invalidate the
warranty and could also damage the appliance and
make it unsafe to use.
• If it is known or suspected that a fault condition exists
on the appliance it must be corrected by a competent
trade person.
• DON’T place any clothing or other combustible
materials against or on top of this appliance.

Page 2
CONTENTS
Important - Please Note
This appliance has been manufactured
by Gledhill (Water Storage) Limited.
Gledhill are an established manufacturer
of water heating appliances. It is our
policy to deal with the building trade
rather than directly with consumers
because our products should only
be installed by suitably competent
trades people and we recommend that
consumers do not attempt to purchase
and install our products.
We oer a minimum one year warranty
(guarantee) in respect of all appliances
that we manufacture, but please note
that our guarantee is given to the
builder or installer that purchased the
appliance from us and runs from the
date of manufacture. In the unlikely
event that there is a problem with our
appliance it is important that you refer
the problem as soon as possible to the
person or company that supplied the
appliance to you (your “Supplier”). This
will usually be the person or company
that sold (or leased) the property to you
or the person or company that installed
the appliance for you.
If you contact your Supplier in the
rst instance this will enable them to
determine the cause of any problem
that you may be experiencing. We have
found that in many cases the cause of the
problem is not a fault in the appliance
itself but can be the result of some other
factor. We would not, for example, be
responsible for faulty installation of the
appliance, and by contacting us directly
this may simply cause you unnecessary
delay and expense.
Your Supplier can determine the cause
of the problem and where the problem
is caused by a fault with the appliance
itself then your Supplier can advise us
accordingly.
Nothing in our guarantee or in these User
Instructions will aect your statutory
rights.
Issue 5: October 2008

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The hot water in your home is provided
by a high specication thermal storage
system which will give you many
benets.
Simple to operate and exceptionally
efficient in operation, your PulsaCoil
A-Class Thermal Store is probably
dierent to any water heating system
you have ever experienced before.
This booklet will explain why and how
you can get the most from it.
- with a PulsaCoil A-Class, the domestic
hotwateryouuseat thetapisnotstored
but is produced instantaneously. This
has the advantage of reducing the
risk of contamination from things
like Legionella as well as reducing
the risks of scalding by allowing the
temperature of the hot water at the
tap to be controlled at about 52°C.
However, thisalso meansthatwhen
you open the tap, the temperature
takes a little time to stabilise.
- the reason is simple; tepid water in
the house pipework arrives at the
tap first. Then the system “senses”
that a tap has been opened so heat
exchange is started and the domestic
hot water will go fully hot to sterilise
the pipework. Following that the
controller will kick in and the supply
will settle at approximately 52°C.
Welcome To Your Thermal Storage
System
Pulsacoil A-Class - The Power
Behind Your Domestic Hot Water
Operating Characteristics

Page 4
- 52°C has been chosen to keep the risk
of scalding to a minimum whilst still
complying with the requirment to
deliver water to the tap above 50°C
for health /safety reasons; see HS (G)
70 HTM 2040.
This system delivers fresh water from
the mains supply to the hot taps and is
designed to full four basic needs.
1. Provide mains pressure hot water
with an appliance that does not
need a costly annual service.
2. Deliver hot water at good
pressures whenever you need it.
3. Operate as eciently as possible
to cost-effectively meet your
household needs.
4. Provide hot water to every tap
of high quality. This is possibly
because it has not been allowed to
deteriorate in storage cisterns.

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THIS APPLIANCE SHOULD BE
LEFTPERMANENTLYCONNECTED
TO THE OFF-PEAK ELECTRICAL
SUPPLY AND NOT SWITCHED ON
AND OFF WHEN HOT WATER IS
NEEDED. PULSACOIL A-CLASS
MODELSALSOHAVEANON-PEAK
BOOSTWHICH CAN BESWITCHED
ON AS REQUIRED TO PROVIDE
A BOOST TO THE TOP PART OF
THE STORE ON DAYS WHEN A
LARGE AMOUNT OF HOT WATER
IS REQUIRED.
Depending on the wiring system within
your property your installer/developer
may have provided an o peak timer in
the airing cupboard of your property.
If a device is tted it must be set to the
correct time and set to synchronise
with the off peak meter for correct
economical operation. This should
have been set when the system was
commissioned but any power cuts could
have altered the correct time.

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YourThermal Storage System is designed
to provide all the hot water you are likely
to need under normal circumstances,
and deliver that hot water at a pressure
comparable with your cold water mains.
This means that you can enjoy powerful
showers without the need for a separate
pump, or ll a bath with hot water in
minutes.
YourThermal Storage System will ensure
that the energy it needs is minimised,
avoiding costly use of fuel by taking
advantage of o-peak taris whenever
they are available.
Hot water is normally available any time
you need it when the system is switched
on, summer or winter.
With traditional systems which have a
cold supply cistern in the roof space,
there is always the risk that the tank could
become contaminated by dust, birds
or insects. The PulsaCoil is connected
directly to the cold mains and therefore
even the hot supply is pure high quality
water every time.
The water in the store never changes
and therefore THE IMMERSION HEATER
ELEMENTS WILL NEVER SCALE UP
DURING THE LIFE OF THE PRODUCT.
As far as the water you use is concerned
scale can be a problem in any of your
domestic products if the water is very
hard in your area.
1. Deliver Hot Water At Good
Pressures Whenever You Need It
2. Operate As Eciently As Possible
To Cost-eectively Meet Your
Household Needs
3. Delivering High Quality Water To
Every Tap
4. Scale

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The PulsaCoil A-Class appliance has
been designed to inhibit the formation
of scale, but if it does become a problem
you will notice a deterioration in the ow
rate at your hot taps. In this situation
your service engineer can quickly and
easily change the plate heat exchanger
for a service exchange unit.
The Gledhill Thermal Store is the
heart and brain of your hot water
system. It stores hot water at a constant
temperature and incorporates a highly
efficient plate heat exchanger which
heats the hot water for all your domestic
needs. The Thermal Store is superbly
insulated and so the hot water stored
has a very low heat loss.
Off-peak supplies will automatically
be used to heat the thermal store.
The appliance also provides you with
the option to switch on the on-peak
electricity supply when necessary to
provide a ‘boost’ to the top part of
the thermal store to achieve the most
ecient way of satisfying your demands
on the system.
The water delivered to the taps and
showers in your home is supplied at
high pressure because it uses the mains
pressure of your cold water supply. The
PulsaCoil is connected to the mains
system and the water passes through
a highly efficient heat exchanger to
raise its temperature before it travels
to your taps and showers. Because it is
What Is A Thermal Store?
How Does The System Deliver Hot
Water At High Pressure?

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so ecient, both high ow rates and
high pressures are available to give the
best performance for both baths and
showers.
Water tanks in the loft are required
principally for the traditional domestic
hot water system to give a better‘head’
of water - which is basically determined
by the height of the cistern above the
tap being used. In most cases, the higher
the cistern, the greater the pressure.
Because the Gledhill system uses the
pressure from your cold water mains,
these cisterns are not required.
This removes any worries about freezing
or contamination of the cold water
system from insects, dust, birds etc and
leaves more space for storage should
you decide to use it.
Why Are There No Water Cisterns In
The Loft?
Should I turn my unit o when the
property is empty?
We advise that if you are away from the
property for less than 2-3 weeks, then
leave all power switches on.
Inside your appliance a store of water
is held within a stainless steel cylinder,
which will cool if the appliance is
switched o. If the water held in the
stainless steel cylinder is allowed to
remain cool for a prolonged period of
time, corrosion of the stainless steel
cylinder can occur and the lifetime of
your appliance can be signicantly
reduced.

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Plastic Top Up Cistern
Annual Service / Safety Check
We would not therefore recommend
leaving your unit switched o for
several months without the appliance
being drained. Gledhill Response
would be pleased to drain your unit for
you at a subsidised rate should this ever
be necessary. However, the PulsaCoil
ECO Stainless is very well insulated and
so the cost of draining and relling the
cylinder will almost certainly be more
than the cost of energy used by leaving
the cylinder switched on.
The plastic feed tank should have been
lled to the water line by the installer at
the time of commissioning.
The water level in the plastic feed tank
should be checked on a regular basis,
generally 3-4 times a year, and topped
up when necessary to approximately
half way.
Once the level has been topped up or
after it has been checked, ensure the lid
has been securely replaced.
An optional sight glass can be tted to
the side of the feed tank, to overcome
the need to remove the lid to check the
water level.
Unlike other hot water appliances which
provide mains pressure hot water,
appliances, such as unvented storage
cylinders, no costly annual service /
safety check is required.

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However, as the manufacturer, we can
oer an annual breakdown agreement
once the warranty has expired:- see
separate leaet.
If your PulsaCoil should develop a fault
during the warranty period, try resetting
the appliance in accordance with the
instructions on the user control panel
on the front of the appliance. If this is
unsuccessful, switch the unit o and
contact your house manager/installer.
Do not attempt to remove or adjust any
component part yourself.
If the developers warranty has expired
contact the manufacturer if you have an
active Breakdown Agreement.
The user control panel on the front
of the PulsaCoil has a manual boost
switch/facility. This should be switched
on to provide a boost to the top part of
the Thermal Store on days when a large
amount of hot water is required.
When pressed the indicator light will
illuminate and the on-peak boost will
remain active until the next time the o-
peak supply becomes available (unless
switched o again manually).
If you are considering changing your
electricity supplier it is important
that you ensure they are able to
provide at least the same tari. If not
the operation and cost of running the
appliance will be aected.
What If The System Develops A
Fault?
REMINDER
OFF
ON
FLASHING
Normal
On-Peak boost active
Fault attention required
PUSH BUTTON To activate On-Peak boost
ON/OFF SWITCH Control circuit power
supply

Page 11
BREAKDOWN / SERVICE
On expiry of your initial warranty period, Gledhill
Response Limited would be pleased to provide further
customer support with a range of services including:
• annual servicing and safety checks
• expert response to ‘out of warranty’ breakdowns at
xed charges
• low cost annual repair and maintenance contracts
from as little as £75 per year
Please ring 08445 679898 or see www.gledhill.net
for further details.

The code of practice for the installation,
commissioning & servicing of central heating systems