Zip AP3/05 User manual

ZIP Aquapoint III
Direct unvented water heaters
Models: AP3/05, AP3/05/OB, AP3/10,
AP3/10/OB, AP3/15, AP3/15/OB.
Installation, Maintenance and User Instructions
Please read these instructions carefully before commencing installation of this unvented
water heater. Please leave these instructions with the end user after installation.
Zip Heaters (UK) Ltd
14 Bertie Ward Way
Dereham
Norfolk
NR19 1TE
Telephone: [phone]
Fax: [phone]
Web: www.zipheaters.co.uk
The terms ‘Zip’ and ‘InLine’
are registered trademarks
9120-1411
Issued July 2013 V1.01

inside front cover
inside back cover

Instructions. V1.01 Page 1 JULY / 2013
Approvals 1
Description 2
WARNINGS 3
CAUTIONS 4
Packed Contents 4
Accessories 4
Dimensions 4
Technical Data 5
Spare Parts 6
Installation 7
Requirements 7
Positioning 8
Wall Mounting 8
Plumbing and safety control arrangement 9
Installation Diagrams 10
Electrical installation & wiring 11
Wiring Diagram 11
Safety Cut-Out 11
Commissioning & Operation 12
Maintenance 13
Precautions 13
Schedule 14
De-installation 14
Fault nding 15
Warranty 16
Approvals
The Aquapoint III models are approved to the LVD and EMC directives and CE endorsed.The
Aquapoint III models have been examined, tested and found when correctly tted to comply
with the requirements of the United Kingdom Water Regulations / Byelaws (Scotland). The
products are listed under the WRAS (Water Regulations Advisory Scheme) Water Fittings and
Materials Directory.
Contents
Please read these instructions carefully before commencing installation of this unvented
Water Heater.
Installation must only be undertaken by a competent person, familiar with unvented electric
water heaters.
The Zip Aquapoint III must be installed in accordance with these instructions and all current
legislation, codes of practice and regulations governing the installation of unvented hot water
cylinders in force at the time of installation .
Please leave these instructions with the end user after installation. To ensure you have a copy of
the latest instructions visit www.zipheaters.co.uk

Instructions. V1.01 Page 2 JULY / 2013
These instructions will guide you through the installation, maintenance and use of the
Zip Aquapoint III, however, if you require any further information please call Zip customer
service on 0845 6 005 005.
• The Zip Aquapoint III is an unvented water heater designed for connection directly to
incoming mains water supply and can serve one or more outlets using conventional
taps.
• Care should be taken that the unit being chosen can meet the demands of the outlets
being supplied.
• The casing is constructed of impact resistant plastic and heat losses are minimised by
the high efciency polyurethane foam insulation.
• The inner vessel is constructed from glass enamelled steel sheet and pressure tested to
1.2 MPa (12 bar).
• A manually resettable safety cut out automatically cuts off the electrical supply to the
heating element in the event of a malfunction.
• A sacricial magnesium anode is tted to the vessel to provide anti-corrosion protection
for the vessel and the heating element.
Description
Gradual erosion of the anode will occur depending on local conditions and in extreme
cases, conditions may cause rapid erosion resulting in particles being deposited as a
residue or emitted from the heater.
The Aquapoint III should not therefore, be used in applications where the quality of the
water is paramount. Regular preventative maintenance inspections are vital to achieve
optimum performance and durability of the appliance.
The condition of the anode should be checked regularly by an authorised Zip service
provider as part of the preventative maintenance programme.
If the hot water system is not used for two weeks or more, it is recommended
that a hot tap be turned on for several minutes at a sink, basin or bath, it is not
recommended that either a dishwasher, clothes washer or other appliance be used
before the heater is returned to service.
Capacity: Underbasin Overbasin
5 Litre AP3/05 AP3/05/OB
10 Litre AP3/10 AP3/10/OB
15 Litre AP3/15 AP3/15/OB
These instructions refer to the following models:

Instructions. V1.01 Page 3 JULY / 2013
Safety Information
WARNINGS
• Installation, commissioning and maintenance of this appliance must only be
carried out by a competent installer who will then be responsible for adhering to all
relevant standards and regulations.
• The appliance must be disconnected from mains power supply before carrying out
any work involving live circuits.
• The appliance must be permanently connected to the supply through an isolating switch
with a contact separation of at least 3mm in all poles and be protected by a suitably rated
RCD.
• To protect the appliance, an MCB (miniature circuit breaker) or cartridge fuse must be
tted with a rating suitable for the nomi nal current of the appliance.
• The cross sectional area of the connection cable must be appropriate for the power rating
and location of the appliance. See Technical Data.
• The connecting cable must be adequately secured.
• This appliance must be earthed at all times.
• Check that the power supply is switched off prior to electrical connection.
• The appliance, its wiring and piping must not be modied in any way.
• In case of malfunction isolate the power supply immediately. In case of leaks also isolate
the water supply. Repairs must only be carried out by Zip Heaters (UK) Ltd or an authorised
Zip service engineer.
• Temperatures in excess of approximately 43°C are perceived as hot, especially by
children, and may cause a feeling of burning.
• This appliance must not be used by any person (including children) with limited physical,
sensorial or mental abilities or failing experience and/or knowledge unless they are
supervised by a person responsible for their safety or have received instructions about
how to use the appliance.
WARNING: Situations that could cause injury to yourself or others.
CAUTION: Situations that could cause damage to your appliance or other equipment.
NOTE: Notes, usage tips or additional information.
IMPORTANT:
PLEASE READ THESE INSTRUCTIONS CAREFULLY.
NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS AND CAUTIONS. USE THIS PRODUCT
CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO
SO MAY CAUSE DAMAGE AND/OR PERSONAL INJURY, AND WILL INVALIDATE THE WARRANTY.
RETAIN THESE INSTRUCTIONS FOR FUTURE USE.
Possible New Statement

Instructions. V1.01 Page 4 JULY / 2013
CAUTIONS
• Children should be supervised in order to make sure that they do not play with the appliance.
• The appliance must not be subjected to pressure exceeding 0.6 MPa (6 bar), for
pressures exceeding 0.35MPa (3.5 bar) it is recommended that a pressure reducing
valve be installed.
• The appliance must only be used when correctly installed and in perfect working order.
• The appliance must be installed in a frost-free room and must never be exposed to frost.
• The appliance must be completely lled with water before being switched on.
• The Aquapoint III is intended for connection to mains supply only. In any other case please
contact Zip on 0845 6 005 005 for advice.
• Zip Heaters (UK) Ltd cannot be held liable for any damages caused by failure to
observe these instructions.
• It is recommended that an HE45004 Water Block is tted in the water supply line to
minimise the potential damage in the event of any leakage.
Packed Contents
Please check that the items below have been supplied in the Heater Unit package.
Wall Bracket x1
Fixing Screws x2
Rawlplugs x2
Expansion Relief Valve(1/2”BSP) x1
Dimensions
Model Capacity
(litres)
Dimensions
(mm)
Fixing
Centres
(mm)
A B C D E F
AP3/05(OB) 6 376 256 260 100 252 140
AP3/10 (OB) 10 480 350 265 100 378 140
AP3/15 (OB) 15 480 350 310 100 378 140
Accessories :
AQ1: Temperature and Pressure relief valve.
AQ2: Expansion vessel and Check valve.
AQ3: Combined pressure reducer and line strainer.
AQ4: Thermostatic blending valve complete with 2 check valves.
HE45004: Water block.
D
B
F
E
C
A

Instructions. V1.01 Page 5 JULY / 2013
Technical data
Model AP3/05(0B) AP3/10 (0B) AP3/15 (0B)
Nominal supply voltage 1/N/PE 230V~
Power rating (kW) 2.0
Rated Current (A) 8.7
Element type Embedded Rod
Water vessel Glass enamelled steel tested to 1.2 MPa (12 bar).
Maximum working pressure 0.6 MPa (6 bar).
Temp. Adjustment range 7°C~75°C
Capacity 6 Litre 10 Litre 15 Litre
Weight (kg) Full 12.7 18.5 24.8
Weight (kg) Empty 6.7 8.5 9.8
Heat up time (15°C to 65°C) 11 mins 18 mins. 32 mins.
Re-heat time (70% vol.) 7 mins. 12 mins. 18 mins.
Heat Loss(kWh/24 hrs) 0.25 0.33 0.44
Connection tting 1/2” BSP
Thermal cut out Manually resettable set to 84 ± 3ºC.
Safety features
Expansion relief valve set to 6 bar (supplied).
Provision for optional T&P valve (AQ1 not supplied).
Sacricial anode to protect vessel and element.
Protection class IP24
All data quoted at nominal supply voltage.

Instructions. V1.01 Page 6 JULY / 2013
4
4
3
6&7
5
9
1
2
8
10
12
11
Item Description Part No
1 Element AQ0330
2 Gasket AQ0331
3 Control knob lens AQ0332
4 Thermostat AQ0333
5 Resettable cut-out AQ0334
6Sacricial anode 10 & 15 litre AQ0335
7Sacricial anode 5 litre AQ0347
8 Indicator light AQ0336
9 Control knob with spring AQ0337
10 Heating ange AQ0338
11 Anode gasket AQ0345
12 Insulating bush AQ0346
Expansion relief valve (not shown) EXP0921
Spare parts

Instructions. V1.01 Page 7 JULY / 2013
Installation
1. Before starting installation the WARNINGS (page 3) and CAUTIONS (page
4) should be read and fully understood. If in doubt , or in need of further guidance,
please call Zip Customer Service on 0845 6 005 005.
2. Installations must comply fully with UK Water Regulations, Building regulations part G3
and any Local Authority requirements.
3. The electrical installation including earthing and cross bonding should comply with the
current IEE regulations and any local authority requirements.
4. The Zip Aquapoint III is designed for connection direct to the incoming mains water
supply and accommodation must be made for the expanded water that will occur
with each heating cycle. Regulations permit expanded hot water to be accommodated
within the supply pipe work provided that no check valve, stop valve with loose jumper
or other tting can prevent reverse ow. [See diagram 1, (g.2) on page 10].
5. Where the expanded water cannot be accommodated in the pipe work and the static
water supply pressure is under 3.5 bar, t accessory pack AQ2 (expansion vessel and
check valve). Where static water pressures are likely to exceed 3.5 bar t accessory
pack AQ2 and AQ3(pressure reducing valve and line strainer).[ see diagrams 2&3 (g2)
page 10]
6. If required a temperature and pressure relief valve (accessory AQ1) can be used with any
installation by tting securely into the locating point provided.
7. The 6 bar expansion relief valve must be tted on the cold water supply.
Under no circumstances should the expansion relief valve be installed in an inverted
position as fouling of the seat caused by deposits may prevent it from operating correctly.
The safety relief valve connections should not be used for any other purpose and no
valve should be tted between the expansion relief valve and the storage cylinder.
8. The drain connection from the expansion relief valve and the T&P valve, if fitted,
must be in accordance with the water supply regulations. The point of discharge
must be in a safe and visible position. The connection should be made using 15mm
pipe having a continuous fall to a maximum length of 3 metres. It shall not have
more than 3 right-angled bends. If a waste connection in excess of 3 metres is
necessary, the pipe diameter should be 22mm with continuous fall and no more
than 4 right-angled bends with a maximum resistance to flow equivalent to 9 metres
of straight pipe.
9. An isolating valve must be tted to the cold water supply.
10. Valves and ttings must be of a type required by the Water Supply Regulations.
Requirements

Instructions. V1.01 Page 8 JULY / 2013
1. The Zip Aquapoint III must be installed vertically. The connections should be at the rear
of the unit. When facing the heater the hot supply (red) is to the left and the cold supply
(blue) is to the right.
2. The heater may be mounted above or below the intended outlets providing the
water connections for the undersink models are at the top and for the oversink
models underneath.
NB. Undersink and oversink models are not interchangeable.
The xings must be capable of supporting the heater when full of water (see Technical
data page 5).
3. The undersink unit can be placed unsupported on the floor or cupboard base, but if
additional support is required, securing screws are supplied that locate to the rear
of the casing. [As shown in (fig.1)]
4. Always position the Zip Aquapoint III to allow for its removal for future inspection and
Maintenance.
5. The Zip Aquapoint III is not recommended for installation above false ceilings.
6. Do not install in a location where this unit or connecting pipelines can freeze.
7. When considering the location of the heater, consideration should be given to the safe
and visible disposal of any water resulting from leaks and seepage.
This is particularly relevant when the heater is located in a roof space , cupboard or any
concealed location. For guidance please call Zip Customer Service on 0845 6 005 005.
Wall Mounting
g. 1
Positioning

Instructions. V1.01 Page 9 JULY / 2013
1. Check the incoming water supply pressure with reference to the table and diagrams on
the following page to determine the layout required bearing in mind that mains water
supply pressure can increase considerably at night.
2. Refer to the diagrams in (g.2) to determine the accessories required to suit your layout
3. Position the heater and controls to allow for future maintenance.
4. All control and safety valves are marked with the direction of ow and will not function if
incorrectly orientated. Do not break any seals or attempt to adjust any safety valve, to do
so may impair the safety of the installation and will invalidate the warranty.
5. To ensure a watertight seal use bre washers for connecting the inlet and outlet pipes to
the heater. Complete the seal by using PTFE tape to the threads but do not over apply or
extend beyond the thread limits as this will lessen the effectiveness of the joints. Do not
use plumbers paste to secure the joints as this can impair the operation of any valves
connected to the heater.
6. An isolating service valve (not supplied) should be tted in the cold water supply pipe
work as shown in all 3 diagrams in (g.2).
7. Flush all pipe work thoroughly before making the nal connections to the valves,
accessories and cold feed to the heater to ensure that any debris is removed. Failure to
do this may result in irreparable damage to the controls and will invalidate the warranty.
Plumbing and safety control arrangement
The unit will be supported by being hung on a bracket xed to a support wall, using
the xings provided, as shown (g.1). Therefore it is important to ensure that the wall
is strong and solid enough to fully support the unit when the tank is full.
It is important to ensure when drilling the wall, that the selected position avoids any
pipe work or electrical cabling. To mount the heater, the bracket ‘hooks’ locate into
the slots provided in the back of the unit, allowing the unit to hang at against the
wall.
IT IS NOT NECESSARY TO REMOVE THE CASING TO MOUNT
THE WATER HEATER ON THE WALL BRACKET.

Instructions. V1.01 Page 10 JULY / 2013
HOT COLD
EXPANSION
RELIEF VALVE
SERVICE VALVE
TO DRAIN
VIA TUNDISH
AS IN (FIG.1)
COLD WATER
SUPPLY
NEAREST
COLD WATER
DRAW OFF
DIAGRAM 1.
Inlet pressure less than 0.35 MPa (3.5 bar)
and expanded hot water can be accommodated
in the pipework.
HOT COLD
EXPANSION
RELIEF VALVE
EXPANSION VESSEL
SERVICE VALVE
CHECK VALVE
DIAGRAM 2.
Inlet pressure less than 0.35 MPa (3.5 bar)
and expanded hot water cannot be accommodated
in the pipework. (using pack AQ2 expansion vessel
and check valve).
COLD WATER
SUPPLY
TO DRAIN
VIA TUNDISH
AS IN (FIG.1)
NEAREST
COLD WATER
DRAW OFF
HOT COLD
EXPANSION
RELIEF VALVE
EXPANSION VESSEL
SERVICE VALVE
CHECK VALVE
PRESSURE REDUCING
VALVE
DIAGRAM 3.
Inlet pressure greater than 0.35 MPa (3.5 bar).
(Using pack AQ2 and AQ3 expansion vessel, check
valve and pressure reducing valve).
COLD WATER
SUPPLY
TO DRAIN
VIA TUNDISH
AS IN (FIG.1)
OPTIONAL PRESSURE &
TEMPERATURE VALVE TO BE
DRAINED VIA TUNDISH AS IN (FIG.1)
Length ‘A’
OPTIONAL PRESSURE &
TEMPERATURE VALVE TO BE
DRAINED VIA TUNDISH AS IN (FIG.1)
OPTIONAL PRESSURE &
TEMPERATURE VALVE TO BE
DRAINED VIA TUNDISH AS IN (FIG.1)
COLD WATER
DRAW OFF
Minimum length of pipe (Length ‘A’ ).
5 Litres 1.2m (4ft) 0.6m (2ft)
10 Litres 2.7m (9ft) 1.2m (4ft)
15 Litres 4.2m (14ft) 1.8m (6ft)
SIZE 15mm Pipe 22mm Pipe
g.2
(Underbasin model shown)
Installation diagrams

Instructions. V1.01 Page 11 JULY / 2013
Electrical installation & wiring
It is recommended that the electrical installation is carried out by a qualied electrician.
It is essential that the electrical installation including earthing and cross bonding should
be carried out to comply with the current IEE regulations and local council requirements.
WARNING: SWITCH OFF THE MAINS ELECTRICAL SUPPLY
BEFORE CARRYING OUT ANY WORK INVOLVING A LIVE CIRCUIT.
230v AC SUPPLY ONLY, THIS APPLIANCE MUST BE EARTHED.
BROWN
BLUE
GREEN/YELLOW
LIVE
NEUTRAL HEATING ELEMENT THERMOSTAT
NEON
INDICATOR BULB
EARTH
Supply through a
Fused doublepole
switch or fused
spur.
OVER TEMPERATURE
SAFETY CUT-OUT
1. The Zip Aquapoint III is pre-wired with a length of 3 core cable suitable for connection
to a mains 230v supply. Connection must be made in accordance with the current IEE
wiring regulations to a double pole isolating switch on a dedicated circuit or a double
pole switched spur.
2. If the cable length is insufcient it is recommended that the entire length of cable is
replaced with no joins to the original. To replace the cable:
)a Prise the temperature control knob off the spindle and remove the screw underneath.
)b Release the two xing screws at the top of the cover assembly.
)c Remove the cover by lifting forwards and upwards.
)d Release the locknut on the cable grommet assembly.
)e Remove the existing cable and pass the new cable through the grommet assembly.
)f Remake the cable connections and tighten the grommet locknut to ensure the cable is
securely clamped
)g Re-assemble the cover.
3. All internal wiring is factory mounted and should not be altered or modied.
This appliance must be earthed.
Do not switch on the electrical supply until the water heater is full of water.
Safety Cut-out
In the event of a malfunction that leads to an over temperature situation, a Safety cut out
will automatically cut off the electrical supply to the element.
This is a manually resettable cut-out that may be reset by a qualied electrician once the
fault has been corrected.
Wiring Diagram

Instructions. V1.01 Page 12 JULY / 2013
Commissioning & operation
1. Check that all ‘Requirements’ under ‘Installation’ have been met.
2. Check that all water and electrical connections are correct and tight.
3. Open a hot water tap.
4. Open the water mains isolating valve and allow the heater to ll.
5. Close the hot water tap when water starts to ow from it.(The heater vessel should now
be full).
6. Check for leaks and rectify as necessary.
7. Manually operate the Expansion Relief Valve and T&P Valve if tted to ensure free water
ow through the discharge pipe by turning the knob to the left and holding it in the open
position.
8. Set the temperature control knob to the required position. The ‘E’ position with a water
temperature of 55°C is recommended for economical operation while minimising lime-
scale deposits and thermal losses.
Note:
• Rotating the temperature control knob varies the temperature over the range 7°C to
75°C.
• The maximum temperature can be limited by prising the front cover (lens) off the
temperature control knob and re-positioning the limit pin as shown in (g.3) below,
from ‘0’ to position ‘A’ max 55°C, ‘B’ max 45°C, or ‘C’ max 35°C.
• Hot water at 55°C or more can scald.
Note.
To protect the water heater from freezing, the temperature control knob may be set
when a stored water temperature of approximately 7°C will be maintained while the
heater is connected to the power supply.
NB:This protection does not extend to the pipe work and ttings.
55°C
7°C~75°C 45°C
35°C
Temperature Limiting Pin.
Place pin in the locating hole of
the required Max. Temperature.
Control Knob interior. Front Cover
g.3

Instructions. V1.01 Page 13 JULY / 2013
9. Switch on the electrical supply to the unit. The red neon light will glow during the heating
cycle and will extinguish when the selected temperature is reached re-lighting again for
the next heating cycle.
10. During the heating cycle no water should escape to waste from either the expansion
relief or T&P valves.
11. Allow the heater to reach the selected temperature and when the indicator light has
extinguished, check the water temperature and re-check the water connections
adjusting as necessary.
12. Please pass these instructions on the person responsible for the building and it’s
management.
Maintenance
Precautions
1. The Zip Aquapoint III is an unvented electric water heater and only a competent person
(electrician or plumber), familiar with unvented systems, should carry out any servicing
and maintenance work on this unit.
2. DO NOT Remove the cover whilst the unit is connected to the electrical supply.
WARNING When the neon indicator light is extinguished the unit is still connected
to the electrical supply, only by operating the ‘double pole isolating switch’ can the unit
be disconnected from the supply.
3. The over temperature safety cut-out reset is located inside the cover. DO NOT reset the
over temperature cut-out until the cause of it’s operation has been correctly diagnosed
and corrected.
4. DO NOT use the water heater if it is suspected of being frozen. Switch off the electrical
supply if water ceases to ow and do not switch it back on until a competent person
(electrician or plumber), has checked that it is safe to do so.
5. The heater should be visually inspected regularly. This is particularly important if the
heater is located in a cupboard, roof space or any other concealed location. If there are
any signs of leaks or seepage the heater should be isolated from the water supply and
switched off from the electrical supply until a competent person (electrician or plumber),
has investigated the cause.
6. DO NOT block or restrict the discharge from any safety valve.
7. DO NOT tamper with any safety valve.
8. If water discharges from any safety valve, switch off the electrical supply to the unit,
isolate the water supply and contact a competent person (electrician or plumber)
familiar with unvented systems.
9. Please note that limescale forms more readily at higher temperatures. Damage or
failures caused by the formation of limescale are specically excluded under the
terms of the warranty. To reduce limescale formation to a minimum the unit should
always be operated at the lowest convenient temperature. The ‘E’ temperature setting
is recommended.

Instructions. V1.01 Page 14 JULY / 2013
Schedule
It is recommended that all key components of the heater should be inspected on a
regular basis, no greater than 12 monthly intervals, for the continued safe and efcient
operation of the unit. The inspection should be carried out by a competent person
(electrician or plumber) familiar with unvented systems and the components to be
inspected should include the following:
1. Sacricial anode. The condition of the anode should be checked regularly by an
authorised Zip service provider as part of the preventative maintenance program, to
ensure it’s effectiveness in protecting the vessel and element from corrosion.
To check the condition of the anode visually through the ange opening, rst remove the
thermostat temperature probe and disconnect the electrical wires to the element before
unscrewing the element assembly and removing it.
To check the condition of the anode electrically, disconnect the wire between the anode
and the vessel and check that the current between anode and vessel exceeds 0.4mA.
Ensure that the wire is reconnected afterwards.
If the current between the anode and the vessel does not exceed 0.4mA it should be
checked visually and if badly corroded, it should be replaced.
To replace the anode, grasp it with long tongs or another suitable tool through the ange
opening and unscrew the securing nut whilst,at the same time supporting the anode
from inside the vessel.
2. Expansion relief valve. Check correct operation.
3. T&P relief valve, if tted. Check correct operation.
4. Expansion vessel, if tted. Check pressure-referring to label on the side of the vessel.
5. Integral line strainer, if a pressure reducing valve is tted. Inspect and clean as
necessary.
6. Check the discharge pipe is free of obstructions.
7. Check that all the electrical connections are tight.
De-Installation
• Switch off and disconnect the electrical supply.
• Close the mains water supply isolating valve.
• Disconnect the inlet and outlet connections on the heater.
• Remove the heater.
• Drain the unit through the hot water supply connection.

Instructions. V1.01 Page 15 JULY / 2013
Fault Possible cause Solution
Over temperature cut-out
operates.
The thermostat has failed.
Reset and if the cut-out oper-
ates again, isolate the unit and
contact the installer.
NB. Isolate the electrical
supply before removing the
cover and ensure that the
cover is correctly replaced and
secured before reconnecting.
The thermostat is set at too
high a temperature.
Regular, intermittent water
discharge from the tundish.
Loss of pressure from the
expansion vessel.
Isolate the heating system and
the mains cold water supply.
Partly drain the unit. Recharge
the expansion vessel to the
specied pressure and re-
commission.
Thermostat failure.
Isolate the heating system and
check the thermal controls
when discharge ceases. Replace
the thermostat if faulty.
Continuous water discharge
from tundish.
Pressure reducing valve not
operating correctly.
Check with pressure gauge and
replace as necessary.
T&P relief valve not operat-
ing correctly. Check and replace if faulty.
Expansion relief valve not
operating correctly. Check and replace if faulty.
No water ow from hot taps.
Cold water mains is isolated. Check and switch on.
Integral line strainer in
pressure reducing valve is
blocked.
Check and clean as necessary.
Pressure reducing valve is
incorrectly fitted.
Ret correctly with arrows in the
direction of ow.
Water from hot taps is cold.
Power supply not switched
on Check and switch on.
Over temperature cut-out
has operated.
See fault ‘Over temperature cut-
out operates’ above.
Faulty element. Check and replace as necessary.
Thermostat failure. Check and replace as necessary.
Fault Finding

Instructions. V1.01 Page 16 JULY / 2013
The Zip appliance you have chosen is precision-built from the nest materials available and
should give many years of trouble free service.
Certain warranties may be implied by law into your contract with Zip.
The warranty provided below is additional to these implied warranties and nothing set out
below shall limit your statutory rights or rights at law.
Zip Heaters (UK) Ltd warrants that, should any part fail within 12 calendar months of
installation, that part will be repaired or replaced free of charge by Zip or its Distributor or
Service Provider, except as set out below, provided the appliance is installed and used strictly
in accordance with the instructions supplied, and that failure is not due to accident, misuse,
abuse, unsuitable water conditions, or to any alteration, modication or repair by any party
not expressly nominated by Zip.
No costs are payable by the customer other than any mileage or travelling-time charges
incurred by a Zip Service Provider or the cost of removal, cartage and re-installation of any
component of the appliance if it needs to be returned for repair to Zip or its Distributor.
This warranty does not cover damage resulting from non-operation of the appliance or
consequential damage to any other goods, furnishings or property.
Zip does not exclude, restrict or modify any liability that cannot be excluded, restricted or
modied or which cannot, except to a limited extent, be excluded, restricted or modied as
between the owner or user and Zip under the laws applicable.
Furthermore, this warranty does not displace any statutory warranty, but, to the extent to
which Zip is entitled to do so, the liability of Zip under any statutory warranty will be limited
at Zip’s option to the replacement of the appliance or supply of equivalent appliance, the
payment of the cost of replacing the appliance or acquiring an equivalent appliance, or the
payment of the cost of having the appliance repaired or the repair of the appliance.
Warranty
NOTE: It is our policy to continually improve products and as such we reserve the right to alter
data, specications and component parts without prior notice.
To ensure you have the latest revision of this instruction manual, please visit www.zipheaters.co.uk
to download the latest copy.
IMPORTANT: No liability is accepted for incorrect use of this product.
The use of this crossed out wheeled bin logo indicates that this product needs
to be disposed of separately to any other household waste.
Within each of the European Union member countries, provisions have been
made for the collection and recycling of unwanted electrical and electronic
equipment.
In order to preserve our environment we ask that you dispose of this product
correctly. Please contact Zip Customer Service for advice on 0845 6 005 005.