Zip AQUAPOINT III AP3/05 Manual

1
INSTALLATION INSTRUCTIONS & USER MANUAL
210005 V2.00 AUG 2017 - ZIP APIII/5-15(OB)
TECHNICAL SUPPORT TEL: [phone] EMAIL: SERVICE@ZIPINDUSTRIES .CO.UK
WWW.ZIPWATER.CO.UK
ZIP
AQUAPOINT III
INSTALLATION INSTRUCTIONS & USER MANUAL
MODEL NUMBER:
AP3/05 - AP3/15, AP3/05/OB - AP3/15/OB
Direct unvented water heaters.

2INSTALLATION INSTRUCTIONS & USER MANUAL
210005 V2.00 AUG 2017 - ZIP APIII/5-15(OB)
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General Product Description 3
Approvals 3
Technical Data 4
Dimensions 4
Safety Information 5
WARNINGS 5
CAUTIONS 6
Spare Parts 7
Pack contents and accessories 8
Installation 9
Requirements 9
Positioning 10
Wall Mounting 10
Plumbing and safety control arrangement 11
Plumbing Installation diagram 12
Electrical installation 13
Wiring diagram 13
Safety cut-out 13
Commissioning & Operation 14
Maintenance 15
Precautions 15
Schedule 16
De-installation 16
Fault nding 17
End of life disposal 18
Warranty 19
Contact details 20
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 .
To ensure you have a copy of the latest instructions visit www.zipwater.co.uk
Please leave these instructions with the end user after installation.
TABLE OF CONTENTS

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INSTALLATION INSTRUCTIONS & USER MANUAL
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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 0345 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 efficiency 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 sacrificial magnesium anode is fitted to the vessel to provide anti-corrosion protection
for the vessel and the heating element.
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 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.
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 fitted 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.
GENERAL PRODUCT DESCRIPTION
APPROVALS

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Zip Aquapoint III
MODEL AP3/05/0B AP3/05 AP3/10/OB AP3/10 AP3/15/OB AP3/15
Installation Overbasin Underbasin Overbasin Underbasin Overbasin Underbasin
Declared load profile XXS XXS XXS XXS XXS XXS
Energy efficiency class (1) A A A A A A
Energy efficiency (ηwh)(1) % 35.9 35.2 36.3 35.2 36.1 35.3
Annual electricity
consumption (1) kWh 514 525 508 524 510 523
Thermostat temperature
setting e(2)
Specific precautions See installation and operating instructions
“Smart” value 0
Rated volume l6.2 6.6 9.8 9.9 14.8 14.9
Weight empty / full kg 6.5/13.5 8.5/18.5 9.8/24.7
Power rating W 2,000
Nominal supply voltage V AC 230
Protection class IP24
Heat up time (10°C to
65°C) mins 11 20 29
Packaging dimensions mm 300x300x440 300x400x530 350x400x540
Maximum working
pressure MPa 0.55
Water connections 1/2” BSP
(1) EU Regulation 812/2013;EN 50440
(2) Temperature control ‘e’ setting corresponds to approx. 41°C for models AP3/05/0B, AP3/05 or 35°C for models AP3/10/OB, AP3/10, AP3/15/OB, AP3/15.
TECHNICAL DATA
Model Dimensions
(mm)
Fixing
centres
(mm)
A B C D E F
AP3/05(OB) 376 256 260 100 252 140
AP3/10 (OB) 480 350 265 100 378 140
AP3/15 (OB) 480 350 310 100 378 140
D
B
F
E
C
A
Dimensions

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INSTALLATION INSTRUCTIONS & USER MANUAL
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(1) EU Regulation 812/2013;EN 50440
(2) Temperature control ‘e’ setting corresponds to approx. 41°C for models AP3/05/0B, AP3/05 or 35°C for models AP3/10/OB, AP3/10, AP3/15/OB, AP3/15.
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
fitted with a rating suitable for the nominal 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, page 4.
• 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 modified 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 a competent person.
• Temperatures in excess of approximately 43°C are perceived as hot, especially by children,
and may cause a feeling of burning.
SAFETY INFORMATION
WARNING:
Indicates a potentially hazardous situation, which, if not avoided,
could result in death and/or serious injury and/or property
damage.
CAUTION: Indicates a potentially hazardous situation, which, if not avoided,
may result in property damage.
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.

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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 0.55 MPa (5.5 bar). For
supply 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 filled with water before the electrical supply is
switched on.
• The Aquapoint III is intended for connection to mains supply only. In any other case
please contact Zip on 0345 6 005 005 for advice.
• Zip Water UK cannot be held liable for any damages caused by failure to observe
these instructions.
• 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.
SAFETY INFORMATION

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INSTALLATION INSTRUCTIONS & USER MANUAL
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4
4
3
6&7
5
9
1
2
8
10
12
11
REF ITEM DESCRIPTION
1 AQ0330 Element
2 AQ0331 Gasket
3 AQ0332 Control knob lens
4 AQ0333 Thermostat
5 AQ0334 Resettable cut-out
6 AQ0335 Sacrificial anode 10 & 15 litre
7 AQ0347 Sacrificial anode 5 litre
8 AQ0336 Indicator light
9 AQ0337 Control knob with spring
10 AQ0338 Heating flange
11 AQ0345 Anode gasket
12 AQ0346 Insulating bush
EXP0921 Expansion relief valve (not shown)
SPARE PARTS

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Please check that the items listed below have been supplied in the Aquapoint III pack.
ITEM QTY
Wall Bracket 1
Fixing Screws 2
Rawl plugs 2
Expansion Relief Valve(1/2”BSP) 1
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.
PACK CONTENTS
ACCESSORIES

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INSTALLATION INSTRUCTIONS & USER MANUAL
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• Before starting installation the WARNINGS (page 5) and CAUTIONS (page
6) should be read and fully understood. If in doubt, or in need of further guidance,
please call Zip Customer Service on 0345 6 005 005
• Installations must comply fully with UK Water Regulations, Building regulations part G3
and any Local Authority requirements.
• The electrical installation including earthing and cross bonding should comply with the
current IEE regulations and any Local Authority requirements.
• 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 fitting can prevent reverse flow.[See diagram 1, (Fig.2) on page 12].
• Where the expanded water cannot be accommodated in the pipe work and the static
water supply pressure is under 3.5 bar, fit accessory pack AQ2 (expansion vessel and
check valve). Where static water pressures are likely to exceed 3.5 bar fit accessory
pack AQ2 and AQ3 (pressure reducing valve and line strainer).[See diagrams 2&3
(Fig.2) page 12].
• If required a temperature and pressure relief valve (accessory AQ1) can be used with any
installation by fitting securely into the locating point provided.
• The 6 bar expansion relief valve must be fitted 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 fitted between the expansion relief valve and the storage cylinder.
• The installations must comply fully with UK Water Regulations, Building regulations
part G3 and any Local Authority requirements. 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.
• An isolating valve must be fitted to the cold water supply.
• Valves and fittings must be of a type required by the Water Supply Regulations.
Requirements
INSTALLATION

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• The 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.
• 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.
Note: Undersink and oversink models are not interchangeable.
The fixings must be capable of supporting the heater when full of water (see Technical
data page 4).
• 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 below.
• Always position the Aquapoint III to allow for its removal for future inspection and
maintenance.
• The Aquapoint III is not recommended for installation above false ceilings.
• Do not install in a location where this unit or connecting pipelines can freeze.
• 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 0345 6 005 005.
Wall Mounting
Fig. 1
Positioning
INSTALLATION

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INSTALLATION INSTRUCTIONS & USER MANUAL
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The unit will be supported by being hung on a bracket fixed to a support wall, using
the fixings provided, as shown Fig.1, page 10. 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 flat against the
wall.
Note: It is not necessary to remove the casing to mount the water heater on
the wall bracket.
INSTALLATION
• Check the incoming water supply pressure with reference to the table and diagrams in
Fig.2, page 12 to determine the layout required, bearing in mind that mains water supply
pressure can increase considerably at night.
• Refer to the diagrams in Fig.2, page 12 to determine the accessories required to suit
your layout
• Position the heater and controls to allow for future maintenance.
• All control and safety valves are marked with the direction of flow 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.
• To ensure a watertight seal use fibre 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.
• An isolating service valve (not supplied) should be fitted in the cold water supply pipe
work as shown in all 3 diagrams in Fig.2, page 12.
• Flush all pipe work thoroughly before making the final 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.
• Drain valves should be fitted in both hot and cold water lines.
Plumbing and safety control arrangement

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HOT COLD
EXPANSION
RELIEF VALVE
SERVICE VALVE
TO DRAIN
VIA TUNDISH
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.
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
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
Length ‘A’
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
PRESSURE & TEMPERATURE
VALVE TO BE DRAINED VIA TUNDISH
(optional, not supplied).
PRESSURE & TEMPERATURE
VALVE TO BE DRAINED VIA TUNDISH
(optional, not supplied).
PRESSURE & TEMPERATURE
VALVE TO BE DRAINED VIA TUNDISH
(optional, not supplied).
ZIP
AQUAPOINT III
ZIP
AQUAPOINT III
ZIP
AQUAPOINT III
DRAIN VALVE
DRAIN VALVE
DRAIN VALVE
DRAIN VALVE
HOT COLD
DRAIN VALVE
DRAIN VALVE
Fig.2 (Underbasin model shown)
PLUMBING INSTALLATION DIAGRAM
Zip recommend expansion vessels to be installed in line with the current HSE
guidelines. Expansion vessels should be installed, in cool areas on cold flowing pipes,
mounted as close to the incoming water supply to the water heater as possible, mounted
vertically on pipework to minimise any trapping of debris and to minimise the volume retained
within them, with an isolation and drain valve to aid flushing and sampling and designed to
stimulate flow within the vessel.

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INSTALLATION INSTRUCTIONS & USER MANUAL
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It is recommended that the electrical installation is carried out by a qualified
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 Authority requirements.
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
The Zip Aquapoint III is pre-wired with a length of 3 core cable suitable for connection to a
mains 230V AC supply. The cable is to be wired to a double pole fused spur, with a minimum
break rating of 13 amps.
If the cable length is insufficient it is recommended that the entire length of cable is replaced
with no joins to the original. To replace the cable:
• Prise the temperature control knob off the spindle and remove the screw underneath.
Release the two fixing screws at the top of the cover assembly.
• Remove the cover by lifting forwards and upwards.
• Release the locknut on the cable grommet assembly.
• Remove the existing cable and pass the new cable through the grommet assembly
• Remake the cable connections and tighten the grommet locknut to ensure the cable is
securely clamped
• Re-assemble the cover.
All internal wiring is factory mounted and should not be altered or modified.
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 qualified electrician once the fault
has been corrected.
Wiring Diagram
ELECTRICAL INSTALLATION

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• Check that all Installation requirements have been met.
• Check that all water and electrical connections are correct and tight.
• Open a hot water tap.
• Open the water mains isolating valve and allow the heater to fill.
• Close the hot water tap when water starts to flow from it.(The heater vessel should now
be full).
• Check for leaks and rectify as necessary.
• Manually operate the Expansion Relief Valve and T&P Valve if fitted to ensure free water
flow through the discharge pipe by turning the knob to the left and holding it in the open
position.
• Set the temperature control knob to the required position. The economy ‘e’ setting will
maintain the most economical stored water temperature at approx. 41°C for models
AP/05/OB, AP3/05 or 35°C for models AP3/10/OB, AP3/10, AP3/15/OB, AP3/15.
Lime-scale formation and heat loss are minimised at the economy ‘e’ setting, however
the operating temperature may be increased as required to a maximum of 75°C.
Fig.3 • Insert screwdriver in slot ‘1’ and
remove cover ‘2’.
• Set knob limiter ‘3’ to any desired
temperature value.
C - 35°C
B - 45°C
A - 55°C
- 75°C
• Replace cover ‘2’.
Note:
• Rotating the temperature control knob varies the temperature over the range 9°C to 75°C.
• To protect the water heater from freezing, the temperature control knob may be set to
when a stored water temperature of approximately 9°C will be maintained while the heater
is connected to the power supply. This protection does not extend to the pipe work and
fittings.
COMMISSIONING AND OPERATION
• The maximum stored water temperature can be limited as follows.

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• 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.
• During the heating cycle no water should escape to waste from either the expansion
relief or T&P valves.
• 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.
• Please pass these instructions on the person responsible for the building and it’s
management.
Precautions
• 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.
• DO NOT Remove the cover whilst the unit is connected to the electrical supply.
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.
• 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.
• DO NOT use the water heater if it is suspected of being frozen. Switch off the electrical
supply if water ceases to flow and do not switch it back on until a competent person
(electrician or plumber), has checked that it is safe to do so.
• 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.
• DO NOT block or restrict the discharge from any safety valve.
• DO NOT tamper with any safety valve.
• 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.
• Please note that limescale forms more readily at higher temperatures. Damage or
failures caused by the formation of limescale are specifically 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.
COMMISSIONING AND OPERATION
MAINTENANCE

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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 efficient 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:
• Sacrificial anode. The condition of the anode should be checked regularly 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 flange opening, first 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 flange
opening and unscrew the securing nut whilst,at the same time supporting the anode
from inside the vessel.
• Expansion relief valve. Check correct operation.
• T&P relief valve, if fitted. Check correct operation.
• Expansion vessel, if fitted. Check pressure-referring to label on the side of the vessel.
• Integral line strainer, if a pressure reducing valve is fitted. Inspect and clean as
necessary.
• Check the discharge pipe is free of obstructions.
• 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
MAINTENANCE

17
INSTALLATION INSTRUCTIONS & USER MANUAL
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TECHNICAL SUPPORT TEL: [phone] EMAIL: SERVICE@ZIPINDUSTRIES .CO.UK
WWW.ZIPWATER.CO.UK
FAULT POSSIBLE CAUSE SOLUTION
Over temperature cut-
out
operates.
The thermostat has failed.
Reset and if the cut-out operates
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 specified
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 dis-
charge 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 flow 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.
Refit correctly with arrows in the
direction of flow.
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

18 INSTALLATION INSTRUCTIONS & USER MANUAL
210005 V2.00 AUG 2017 - ZIP APIII/5-15(OB)
TECHNICAL SUPPORT TEL: [phone] EMAIL: SERVICE@ZIPINDUSTRIES .CO.UK
WWW.ZIPWATER.CO.UK
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
0345 6 005 005.
END OF LIFE DISPOSAL

19
INSTALLATION INSTRUCTIONS & USER MANUAL
210005 V2.00 AUG 2017 - ZIP APIII/5-15(OB)
TECHNICAL SUPPORT TEL: [phone] EMAIL: SERVICE@ZIPINDUSTRIES .CO.UK
WWW.ZIPWATER.CO.UK
The Zip appliance you have chosen is precision-built from the finest 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 Water UK 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, modification 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
modified or which cannot, except to a limited extent, be excluded, restricted or modified 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.
NOTE: It is our policy to continually improve products and as such we reserve the right to alter
data, specifications and component parts without prior notice.
To ensure you have the latest revision of this instruction manual, please visit www.zipwater.co.uk to
download the latest copy.
IMPORTANT: No liability is accepted for incorrect use of this product.
WARRANTY

20 INSTALLATION INSTRUCTIONS & USER MANUAL
210005 V2.00 AUG 2017 - ZIP APIII/5-15(OB)
TECHNICAL SUPPORT TEL: [phone] EMAIL: SERVICE@ZIPINDUSTRIES .CO.UK
WWW.ZIPWATER.CO.UK
Zip Water UK
14 Bertie Ward Way, Dereham, Norfolk NR19 1TE
0345 6 005 005 [e-mail]
www.zipwater.co.uk