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INSTA-80
These instructions must be left with the user
Installation Guide
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Table of Contents
Introduction ............................................................................................................................................. 3
Guarantee .................................................................................................................................................. 3
Plumbing Diagram Cold Feed ........................................................................................................... 6
Plumbing Diagram Hot Feed ............................................................................................................. 7
Wiring Diagram ...................................................................................................................................... 8
Flow Rate Graph Chart ......................................................................................................................... 9
Pack Contents Checklist ................................................................................................................... 10
Specifications ........................................................................................................................................ 10
Installation Requirements ............................................................................................................... 11
Installation ............................................................................................................................................. 11
Quick set up guide .............................................................................................................................. 12
Commissioning..................................................................................................................................... 14
Cleaning ............................................................................................................................................... 14
Fault Diagnosis ..................................................................................................................................... 15
Customer Service ................................................................................................................................ 16
Guarantee ........................................................................................................................................... 16
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Introduction
Thank you for purchasing a quality Watersave product. To exploit the full potential
of your new product, please take time to read this guide thoroughly. Having done
so, keep it handy for future reference.
The Watersave INSTA-80 Supreme is an on-demand, no storage, water heater for
use with either an existing hot water supply or a cold mains water supply where
the minimum water flow is 1.2 litres per minute and less than 4 bar pressure.
The Watersave INSTA-80 Supreme features a 3.5kw to 5.5kw internal patented
heating element which has been designed to provide hot water all year round.
Performance may vary depending on incoming ambient water temperatures.
Guarantee
For domestic installations, Watersave guarantee the INSTA-80 Supreme against
any defect in materials or workmanship for a period of two years from the date of
purchase. Shower fittings for one year and Sensor Taps for one year.
For light commercial / healthcare installations, Watersave guarantee the INSTA-80
Supreme against any defect in materials or workmanship for a period of one year
from the date of purchase.
For terms and conditions refer to the back cover of this guide.
Recommended Usage
Domestic
Light Commercial
Heavy Commercial
Healthcare
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Important Safety Information
WARNING
TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK OR INJURY:
1. Installation of the INSTA-80 Supreme must be carried out in accordance
with these instructions, and must be conducted by competent personnel.
2. The electrical installation must comply with BS7671 (commonly referred to
as the IEE Wiring Regulations) and all relevant building regulations, or any
particular regulation or practice specified by the local electricity supply
company.
3. This appliance must be earthed. All supplementary Bonding must
comply with BS7671
4. This product is suitable for installation in zone 2 and is IPX4 rated.
5. The plumbing installation must comply with all national or local water
regulations and all relevant building regulations, or any particular
regulation or practice specified by the local water supply company.
6. The INSTA-80 Supreme is intended to be permanently connected to the
fixed electrical wiring of the mains system. A separate supply must be
provided from the consumer unit to the INSTA-80 Supreme.
7. Isolate the electrical and water supplies before commencing installation.
The electricity must be switched off at the consumer unit and the
appropriate circuit fuse removed, if applicable.
8. The INSTA-80 Supreme must be provided with means for disconnection
that is incorporated into the fixed wiring in accordance with the relevant
local wiring regulations. The isolating switch must be local to the appliance.
9. A 25A Miniature Circuit Breaker (MCB) must be fitted. This may be part of
the consumer unit or a separate unit.
10. Ensure all electrical connections are tight, to prevent overheating.
11. The INSTA80 Supreme must not be fitted where it may be exposed to
freezing conditions. Ensure that any pipe-work that could become frozen is
properly insulated.
12. The INSTA-80 Supreme is not suitable for areas with high humidity or
temperature (i.e. steam rooms and saunas).
13. The INSTA-80 Supreme has inbuilt electrical connections and should never
be tampered with, only a competent person should remove the cover. We
recommend any maintenance work is carried out by a Watersave Service
Engineer or suitably qualified tradesperson. There are no user serviceable
parts inside the INSTA-80 Supreme.
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14. DO NOT switch on if water leaks from the main enclosure. Isolate the
electrical supply to the INSTA-80 Supreme immediately.
15. DO NOT switch on if there is a possibility that the water in the INSTA-80
Supreme is frozen.
16. The INSTA-80 Supreme can deliver scalding temperatures if not operated,
installed or maintained in accordance with the instructions, warnings and
cautions contained in this guide.
17. Rapid or excessive operation of the INSTA-80 Supreme controls may result
in high or unstable outlet water temperatures. Operate controls gradually
and allow 5-10 seconds for water to heat.
18. The INSTA-80 Supreme 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 the use of the INSTA-80 Supreme by a person
responsible for their safety.
19. Children should be supervised to ensure that they do not play with the
INSTA-80 Supreme.
20. Always switch off the INSTA-80 Supreme at the electrical isolating switch
when not in use for long periods.
21. If the INSTA-80 Supreme is not to be used for a long period, the water
supply to the INSTA-80 Supreme must be isolated. If the INSTA-80 or pipework is at risk of freezing during this period, they should also be drained of
water.
22. The INSTA-80 Supreme is suitable for use with most point of use water
outlets including, Kitchen Taps, Push taps, Sensor Taps, Low Flow
Showerheads.
23. If any of the following conditions occur, isolate the electricity and water
supplies and refer to “To contact us”, on the back page of this guide.
If the INSTA-80 Supreme is damaged
If water leaks from the INSTA-80 Supreme
If the MCB trips continuously
If the INSTA-80 Supreme begins to make an odd noise, smell or
smoke
If the INSTA-80 Supreme shows signs of a distinct change in
performance indicating a need for maintenance
If the INSTA-80 Supreme is frozen
24. The INSTA-80 Supreme water heater complies with all the relevant
directives for CE Marking.
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Plumbing Diagram Cold Feed
Figure 1Cold Water Feed
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Plumbing Diagram Hot Feed
Figure 2Hot Water Feed
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Wiring Diagram
Figure 3Electrical Wiring Diagram
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Flow Rate Graph Chart
Inlet Water
Temp.
Power
Flow Rate
Outlet Water
Temp.
4
5.5
2
45
4
5.5
2.5
37
4
5.5
3
32
4
5.5
3.5
28
4
5.5
4
25
4
5.5
4.5
22
8
5.5
2
49
8
5.5
2.5
41
8
5.5
3
36
8
5.5
3.5
32
8
5.5
4
29
8
5.5
4.5
26
13
5.5
2
54
13
5.5
2.5
46
13
5.5
3
41
13
5.5
3.5
37
13
5.5
4
34
13
5.5
4.5
31
18
5.5
2
59
18
5.5
2.5
51
18
5.5
3
46
18
5.5
3.5
42
18
5.5
4
39
18
5.5
4.5
36
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Pack Contents Checklist
INSTA-80 Supreme Pre Wired
x1
Installation and User Guide
x1
Specifications
Electrical
Nominal Power Rating 240V
MCB Protection Device
5.5KW
25Amps
Electrical Supply
25 Amp Isolator Switch
Cable Entry Point
Pre Wired
Cable Size
2.5mm²
Water
Inlet Connection
15mm Flexi Hose Isolation Valve
Water Entry Point
Bottom
Water Exit Point
Bottom
Minimum Running Pressure
0.5 bar at 1.2l/min
Maximum Static Pressure
4 bar
Optimum Operating Cold Flow Rate
Unrestricted
Optimum Operating Hot Flow Rate
2.5 Litres Per Minute @ 55°c
with ambient water temp of
18°c (refer to flow chart for
other flow rates and
temperature ranges)
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Installation Requirements
The INSTA-80 Supreme should be installed by a suitably qualified professional and
in accordance with water and electrical regulations.
Before commencing installation make sure you have all the fittings required. These
may include:
Flexi hose with inline shut off valve (not supplied).
25 amp minimum isolator switch (not supplied).
You will also require fittings that are site specific.
Installation
Before installation ensure your water and electrical supply are isolated.
Place the INSTA-80 Supreme in the desired fitting location.
The INSTA-80 Supreme can be used with Watersave recommended extras
such as Sensor Taps and Showerheads.
Plumbing installation
If using cold feed only (Figure 16), connect the cold mains water supply to
the water inlet (on right) at the bottom of the INSTA-80 Supreme.
If using hot feed only (Figure 27), connect the existing hot water feed to the
water inlet (on right) at the bottom of the INSTA-80 Supreme.
o Note! An in line shut off valve must be installed during
plumbing of the INSTA-80 Supreme.
o Minimum Constant water flow rate of 1.2 litres per minute.
o Maximum water pressure of 4 bar.
The Hot water outlet is connected to the hot water supply of the tap.
o When connecting to a sensor or push tap. Connect the hot water
supply from INSTA-80 Supreme direct to the tap.
o When connecting as a shower. Connect the hot water supply from
the INSTA-80 Supreme to the shower hose.
For optimum performance, the flow rate should not exceed 3 litres per
minute. The flow rate can be regulated using the in-line valve. The flow rate
should be regulated to optimise the temperature the end user needs.
Your INSTA-80 Supreme is now fully plumbed.
You can now turn on the cold-water supply and check for leaks.
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If the INSTA-80 Supreme has been fitted with a sensor tap or push tap.
Operate the taps as normal to get the INSTA-80 Supreme to heat the water.
Electrical installation
Note! Ensure that your electricity has been isolated at the mcb first. The
INSTA-80 Supreme requires an mcb with a rating of 25 amps. The INSTA80 Supreme can be connected to the electrical supply by 25 amp minimum
Isolator Switch.
Wiring Isolator Switch (Page 8).
Brown/live, blue/neutral, green yellow/earth to be connected to a
minimum 25 amp isolator switch.
Finalising the electrical install
Switch on electrical current at the mcb.
Turn on the 25 amp isolator switch.
To power up the INSTA-80 Supreme touch the power on/off button once
Electrical installation is now complete.
Electrical Installation must be carried out by a professional.
Quick set up guide
INSTA-80 Display
1. Turn on the main power supply ⏻, it shows spray on display
(Standby mode).
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2. Press both button ⋀ & ⋁ at the same time, then it will show “P”,
(Power setting mode) or “H”, (constant temperature setting mode).
3. Press power button ⏻.
4. “P” will then display. Use the ⋀ to bring the setting to 10.
5. Press power button ⏻.
6. “H” will then display. Use the ⋀ or ⋁ to set the temperature to your desired
setting. i.e. 55C for kitchens or 43C for washrooms/hairdressers.
7. Once the temperature is set, the display will blink 3 times. It will then
revert to the incoming water temperature.
8. When you turn on the tap the water will quickly heat to the temperature
you have set.
Changing the Kw power setting
1. Setting limited power: On standby mode , press ⋀. In 5 seconds, it will
show , you can touch ⋀ one time, it will show , then touch ⋀ again,
it will show . Here 55, 45, 35 means 5.5kw, 4.5kw & 3.5kw, which makes
the INSTA-80 Supreme work under this setting. 5.5kw recommended.
2. Sleeping mode: When no water is available or water stops suddenly, it will show
. 4 mins later, it will turn to standby mode and then once water
flows, it will automatically revert back its original setting. The INSTA-80
Supreme has a memory function that allows the unit to keep your previous
settings.
3. The flow of the water also determines the temperature. The greater the flow of
water the lower the temperature.
4. When being used as an inline heater on the hot water line. The setting we have
found most common are H = 55 and P = 10. The kW setting can be either 45 or
55 depending on the flow rate desired by the customer. 55 recommended. When
used with a cold water supply the most common settings are H = 55, P = 10 and
the kW setting is 55.
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5. Ambient water temperatures effect the settings required. i.e. Higher incoming
ambient water temperatures require lower kW settings.
Commissioning
Assuming you have installed the INSTA-80 Supreme correctly please commission
as follows.
How to get hot water flowing from your INSTA-80 Supreme:
Ensure the inline valve from the cold water supply is open.
Ensure the inline valve from the INSTA-80 Supreme hot water supply is
turned on fully.
Turn your tap to cold to make sure the water is flowing.
Check the temperature of the incoming cold water.
Turn off the cold water at the tap.
Make sure the isolating valve from the old hot water supply system is
turned off.
Make sure the flow rate does not exceed 2.5 litres per minute by adjusting
the inline valve between the cold water supply and the INSTA-80 Supreme
Check the power switch to see what power setting the INSTA-80 Supreme
is set at. The water should now be at your desired temperature. Please see
Diagram 1.0 for flow rate to temperature calculations.
Bring the tap lever back towards the off position and the INSTA-80
Supreme will power off.
In winter the power setting is likely to be P10 and in summer depending on
ambient water temperatures may be as low as P6 to achieve maximum flow
rates at temperatures of 55°c.
Your tap can be used as a normal mixer tap.
Cleaning
The INSTA-80 Supreme should be cleaned using only soapy water and a nonabrasive cloth/sponge.
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Fault Diagnosis
The trouble shooting information below gives details on probable causes and
remedies should difficulties be encountered whilst the tap is in operation?
Warning! There are no user serviceable components inside the cover of the tap.
Only a competent tradesperson should remove the cover!
Symptom
Probable Cause
Possible Remedy
Water leaks from the
connection to inlet or outlet
pipe
Poor plumbing connection
The rubber gasket on the
connection is damaged
Re-install plumbing
connection
Replace the rubber gasket
No display showing
No power
Display is broken down
Ensure power on
Contact Watersave
Failure of the touch button
Touch button or PCB is broken
down
Contact Watersave
Water temperature too high
Power setting too high
Water flow too high
Adjust the power setting to be
lower
Increase the water flow
Water temperature too low
Power setting too low
Water flow too high
Adjust the power setting to be
higher
Decrease the water flow
Water flowing slower than
normal
Inlet filter, aerator or shower
head blocked
Remove and clean filter,
aerator or shower head
No hot water, shows standby
status
Water flow switch has not
activated
Inlet water pressure too low
Contact Watersave
Open the water pressure valve,
increase water pressure
LED display show "E1"
Electric leakage, the heater has
completely powered off for
protection
Contact Watersave
LED display show "E3"
Outlet water temperature is
higher than 75C which is
checked by the sensor
Increase Water Flow
LED display show "E4"
The sensor is broken down
Contact Watersave
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Customer Service
Guarantee
Your product has the benefit of our manufacturer’s guarantee which
starts from the date of purchase.
To activate this guarantee, please visit our website
www.watersave.ie/guarantee-registration or phone 00353 25 84290
within 30 days of purchase.
Within the guarantee period we will resolve defects in materials or
workmanship, free of charge, by repairing or replacing parts or product
as we may choose.
If you have not previously activated the guarantee, you will be required
to do so prior to the provision of assistance. If you do not activate your
guarantee our Engineer will be entitled to charge full payment for the
visit (Call out fee plus parts).
This guarantee is in addition to your statutory rights and is subject
to the following conditions:
The guarantee applies solely to the original installation
under normal use and to the original purchaser only. The
product must be installed and maintained in accordance
with the instructions given in this user guide.
Servicing must only be undertaken by Watersave or our
appointed representative. Note! If a service visit is
required, the product must be fully installed and
connected to services.
Repair under this guarantee does not extend the original
expiry date. The guarantee on any replacement parts or
product ends at the original expiry date.
The guarantee does not cover:
Call out charges for non-product faults (such as damage
or performance issues arising from incorrect installation,
improper use, lack of maintenance, build-up of limescale,
frost damage, corrosion, system debris or blocked filters)
or where no fault has been found with the product.
Water or electrical supply, waste and isolation issues.
Compensation for loss of use of the product or
consequential loss of any kind.
Damage or defects caused if the product is repaired or
modified by persons not authorised by Watersave or our
appointed representative.
Accidental or wilful damage.
Products purchased ex-showroom display.
What to do if something goes wrong:
If your product does not function correctly when you first use it, contact
your installer to check that it is installed and commissioned in
accordance with the instructions in this manual. If this does not resolve
the issue, contact our Customer Services Team who will offer you or
your installer help and advice. If you experience problems, check in this
manual to see if simple home maintenance is required. If you require
further assistance call our Customer Services Team.
Helpdesk Service
Our dedicated Customer Services Team is comprehensively trained and
can offer help and advice, spare parts, accessories or a service visit. We
will need you to have your model name or number and date of
purchase. As part of our quality and training programme calls may be
recorded or monitored.
Watersave Websites
(www.watersave.ie, www.watersave.co.uk)
From our website you can register your guarantee, download additional
user guides, diagnose faults, purchase our full range of accessories,
popular spares and other products, refer to our FAQ’s and request a
service visit.
Spares and Accessories
We maintain extensive stocks of genuine spares and accessories and
aim to provide support throughout the products expected life. Payment
can be made by phone at time of order using most major Credit or Debit
cards and we aim to despatch orders within two working days. The
INSTA-80 Supreme is guaranteed for 2 years for residential use or 1
year for commercial use from date of purchase. For safety reasons
spares exposed to mains voltages should only be fitted by
competent/qualified persons.
Returns
Items can be returned within one month of date of purchase, providing
that they are in unused condition and the packaging is undamaged.
Please obtain authorisation from our Customer Services Team before
return. We reserve the right to apply a 15% restocking charge.
Service / Repairs (Ireland Only)
We have a nationwide team of Service Technicians who can carry out all
service or repair work to your product within the guarantee period and
beyond. You have the assurance of a fully trained Technician, genuine
spare parts and a 12 month guarantee on any chargeable work done.
Payment should be made directly to Watersave over the phone when
arranging the visit. Watersave will accept most major Credit or Debit
cards.
To Contact Us
Telephone: 00353 25 84290
E-mail: Visit www.watersave.ie/contact
By Post: Watersave, Unit 6, Enterprise Centre, Dublin Road,
Mitchelstown, Co. Cork, Ireland
Notice
The company reserves the right to alter product specifications without
notice.
Watersave is a registered trading name of Drainbo Ireland Ltd.
INSTA-80 Manual Revision v1.2 (19-01-2017)
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