Zip VP103 Mounting instructions

ZIP Varipoint II
Models VP103, VP153
VP103UB, VP153UB
unvented water heaters
Issued November 2010
Installation, Maintenance
and User Instructions
Please read these instru tions arefully before ommen ing installation
of the Varipoint unvented water heater.
Please leave these instru tions with the end user after installation.
Zip H at rs (UK) Ltd
14 B rti Ward Way
D r ham Norfolk NR19 1TE
T l phon 0845 602 4533
Facsimil 01362 692448
www.ziph at rs.co.uk
info@ziph at rs.co.uk
The terms ‘Zip’ and ‘Varipoint’ are registered trademarks.
Zip produ ts des ribed in the bro hure are manufu tured
under one or more of the following patents: AU675601,
AU637412, AU635979, GBO422305, GB2065848,
US4354049, US5103859, US5099825. Other patents are
in for e and patent appli ations are pending.
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Warranty – Varipoint II
Your Vari oint II is recision built from the finest
materials and should give many years of trouble free
service. Zi Heaters (UK) Ltd warrants that should the
cylinder fail within five (5) calendar years or any
com onent fail within two (2) years of installation, that
art will be re aired or re laced by Zi Heaters (UK)
Ltd free of charge, exce t as set out below, rovided
that the failure is not due to accident, misuse, abuse,
condition of the water, frost or failure to follow installation
instructions or service requirements. The only charges
ayable by the customer are the cost of removal,
re-installation and cartage, should any com onent
need to be returned for re air. This warranty does not
cover damage resulting from non-o eration or
consequential damage to any goods, furnishings or
ro erty. Zi Heaters (UK) Ltd’s liability will be limited to
re lacement or re air at the o tion of Zi Heaters (UK)
Ltd. This warranty does not re lace any statutory
warranty in relation to the Vari oint II.
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Con en s
Specificati n 4
Special n tices 5
Dimensi ns 6
Installati n
Requirements 7-8
Positioning 9
Plumbing 9
Electrical 10
Commissioning 10-11
Operati n
Precautions 11-12
Maintenance
Schedule 13
Fault Finding 13
De- nstall 13
Spare Parts 14
Zip Varipoint nstallation, Maintenance and User nstructions - November 2010 3
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4 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
Specifica ion
Product: Zip Varipoint .
Type: Direct unvented multipoint.
Capacity: 10 ltr, 15 ltr.
Loading: 2.2 kW.
Heating Element: Embedded rod type.
Thermostat: Capillary type adjustable 5º to 75ºC.
Water vessel: Heavy gauge copper, tested at 16 bar.
Working pressure 6 bar.
Casing: mpact resistant white plastic.
nsulation: High density, CFC free, polyurethane foam.
Safety features: Expansion relief valve (supplied). Set to 6 bar.
Manually resettable over temperature safety cutout.
Facility for T&P valve (supplied). Set to 90ºC / 7 bar.
Water heater protected against frost when electricity is
switched on.
Safety temperature control knob.
Approvals: CE endorsed - WRAS approved.
Models: VP103 - 10 ltr overbasin.
VP153 - 15 ltr overbasin.
VP103UB - 10 ltr underbasin.
VP153UB - 15 ltr underbasin.
Performance
Model Heat up time Re-heat time Heat loss
(15º to 65ºC) (70% vol) (kW/24hrs)
VP103 16 mins 11 mins 0.36
VP153 24 mins 17 mins 0.50
VP103UB 16 mins 11 mins 0.41
VP153UB 24 mins 17 mins 0.58
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Special no ices
These instructions should guide you through the fitting of the Zip Varipoint ,
however if you encounter a problem, just call 0845 6024533 and ask for
Service Helpdesk.
IThe Zip Varipoint is an unvented water heater designed for connection
directly to the incoming mains water supply and can serve one or more
outlets using conventional taps.
ICare should be taken that the capacity of the unit chosen is sufficient to
meet the demands of the outlets being supplied.
IThe casing is constructed from impact resistant plastic and heat losses
are minimised by the CFC free polyurethane foam insulation.
IThe inner vessel is heavy gauge copper and pressure tested to 16 bar.
IAn alloy sheathed heating element provides longer life in aggressive water
conditions.
IA manually resettable safety cut-out automatically cuts off the electrical
supply to the heating element in the event of a malfunction.
If he ho -wa er sys em is no used for wo weeks or more,
i is recommended ha a ho ap be urned on for several
minu es a a sink, basin or ba h, bu no a a dishwasher,
clo hes washer or o her appliance.
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6 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
Dimensions
Model Capacity Dimensions Fixing Centres eight ater
(litres) (mm) (mm) (kg) Connections
ABCD E F Empty Full
VP103 10 452 300 285 60 420 142 6.5 16.5 1
/2"BSP
VP103UB 10 452 300 285 60 335 142 6.5 16.5 1
/2"BSP
VP153 15 452 300 285 60 420 142 7.5 22.5 1
/2"BSP
VP153UB 15 452 300 285 60 335 142 7.5 22.5 1
/2"BSP
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Zip Varipoint nstallation, Maintenance and User nstructions - November 2010 7
Ins alla ion
Requirements
1 These instructions must be read and fully understood before commencing
the installation. f in doubt, or in need of further guidance please ring Zip
on 0845 602 4533.
2 Zip Varipoint unvented water heaters must be installed by a competent
installer, familiar with unvented electric water heaters.
3 nstallations must comply fully with UK Water Regulations and any Local
Authority requirements.
4 The electrical installation including earthing and cross bonding should
comply with the current EE regulations and any Local Authority
requirements.
5 The Zip Varipoint 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 operating cycle. Regulations permit expanded
hot water to be accommodated within the supply pipework provided that
no check valve, stop valve with loose jumper or other fitting can prevent
reverse flow (diagram 1).
Where the expanded water cannot be accommodated in the pipe work
and the static water supply pressure is under 4 bar, fit accessory pack
AQ2 (Expansion vessel and check valve). Where static water pressures
are likely to exceed 4 bar, fit accessory packs AQ2 and AQ3 Pressure
reducing valve and line strainer. See diagrams 2 and 3.
6 The 6 bar expansion relief valve must be fitted on the cold water supply.
7 The T&P valve should be fitted to the boss provided.
8 The drain connection from the expansion relief valve and the T&P relief
valve, must be in accordance with Water Supply Regulations. The point of
discharge must be in a safe and visible position. The connection should
be made using 15 mm pipe having a continuous fall to a maximum length
of three metres. t should not have more than 3 right-angled bends. f a
waste connection in excess of three metres is necessary, the pipe
diameter should be 22 mm with a continuous fall and no more than four
right-angled bends to a maximum resistance to flow equivalent to 9
metres of straight pipe.
9 An solating valve must be fitted to the cold water supply.
10 Valves and fittings must be of a type required by Water Supply Regulations.
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8 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
Diagram 1
Inle pressure less han 4 bar - expanded ho wa er can be accommoda ed in
he pipework.
Diagram 2
Inle pressure less han 4 bar bu expanded wa er canno be accommoda ed
in he pipework. (Using pack AQ2 expansion vessel and check valve).
Diagram 3
Inle pressure is grea er han 4 bar. (Using pack AQ2 and AQ3 expansion
vessel, check valve and pressure reducing valve).
Minimum length of pipe - Length’A’
Size 15 mm pipe 22 mm pipe
10 litres 2.7 m (9 ft) 1.2 m (4 ft)
15 litres 4.2 m (14 ft) 1.8 m (6 ft)
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Zip Varipoint nstallation, Maintenance and User nstructions - November 2010 9
P siti ning
1 Depending upon the model chosen the Varipoint 2 can be installed over
or underbasin. The underbasin model is designed to be floor standing
with the connections uppermost, the hot supply (colour coded red) to
the left when facing the unit. A wall fixing bracket is supplied for use if
required.
2 The models to be sited overbasin are wall hung using the bracket
provided. Ensure that the wall supporting the product is sufficiently
strong to bear the weight of the unit when full. The connections are at
the bottom of the unit with the hot supply to the left when facing the unit.
Mark the position of the fixings AND BEFORE drilling into the wall ensure
that any hidden pipework or electrical wiring is avoided.
3 The dimensions, fixing positions and weights are shown in the Table that
appears on page 6.
4hen deciding the final location of the heater, consideration should
be given to the safe and visible disposal of any water resulting from
leaks or seepage. This is particularly relevant when the heater is
located in a roof space, cupboard or any concealed location.
For guidance please ring Zip Heaters on 0845 602 4533.
5 Position the Zip Varipoint to allow for future maintenance.
6 Do not install in a location where the unit or connecting pipe can freeze.
Plumbing
1 Check the incoming water supply pressure as this will determine the
layout and safety controls required. Remember that the mains water
pressure can increase considerably at night.
2 Refer to the diagrams 1 to 3 to determine accessories required and
layout.
3 Position the heater and controls to allow for future maintenance.
4 All control and safety valves are marked to show the direction of water
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 guarantee.
5 To ensure a watertight seal use fibre washers for connecting services
between the heater and the connectors used. Complete the seal by
applying PTFE tape to the threads but do not over-apply. Do not use
plumbers paste to secure joints as this can impair the operation of any
valves connected to the heater.
6 Flush all pipework before making the final connections to the valves,
accessories and the heater.
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10 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
Electrical
1 Switch off the main electricity supply before carrying out any work
involving a live circuit or access to components that may be live.
2 The Zip Varipoint is pre-wired with a length of 3-core cable suitable for
connection to a mains 240v supply. Connection must be made to a
double-pole isolating switch on a dedicated circuit or a double pole
switched spur.
3 f the cable length is insufficient it is recommended that the entire length
is replaced and no joins made to the original. To replace the cable:
a. Prise the temperature control knob off the spindle.
b. Release the one screw revealed by the knob.
c. Remove the cover by sliding forwards.
d. Pass the new cable through the entry point of the cover.
e. Remake the connections.
f. Ensure the cable is securely clamped.
g. Refasten the cover.
Do not switch on the electrical supply until the water heater is full
of water.
C mmissi ning
1 Check that all the requirements under “ nstallation Requirements” have
been met.
2 Check that all the water and electrical connections are correct and tight.
3 Open a hot water tap.
4 Open the isolating valve and permit the heater to fill.
5 When the water flows from the hot tap - turn off the hot tap.
6 Check for leaks, rectify as necessary.
7 Check the operation of the safety valve and the temperature and
pressure relief valve.
Neon
Indicator
Heating
Element
Thermostat
Cut Out
240V
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Zip Varipoint nstallation, Maintenance and User nstructions - November 2010 11
8 Set temperature as per “Operation” paragraph 1.
9 Switch on the power. The red neon light will glow during the heating cycle
and when the selected temperature is reached it will go out until the next
heating cycle.
10 Check the water temperature and re-check water connections and adjust
as necessary.
11 Pass these instructions to the person responsible for the building
management.
Opera ion
Precauti ns
1 The required stored hot water temperature may be selected by rotating
the control clockwise. There is a positive ‘location’ at each of the detailed
settings.
This setting protects the appliance against frost damage,
but this protection does not extend to connecting
pipework or fittings
45°C - Economy setting
60°C - Standard setting
75°C - Setting for very hot water
when large amounts of warm water
(mixed hot and cold) are required.
The water heater cannot be switched off via the temperature selector.
It can only be switched off at the switched mains supply socket.
Temperature limitati n
• Select position and pull the
temperature selector from the
spindle.
• Press out the small manual
insert from the inside of the
selector and refit in the
required maximum position
(45, 60 or 75°C).
• Refit the temperature selector
onto the spindle.
(The temperature cannot be
set to a value higher than that
fixed on the selector).
45°C
60°C
75°C
75°C
60°C
45°C
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12 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
2 The Zip Varipoint is an unvented electric water heater and a competent
installer, familiar with unvented systems, should carry out all servicing and
maintenance.
3 Do not remove the cover whilst the unit is connected to the electrical
supply.
4 The over temperature cut-out is located beneath the housing cover.
5 Do not reset the over temperature cut-out until the cause of its operation
has been diagnosed and necessary repairs undertaken.
6 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 on again
until a competent person has has checked it is safe to do so.
7 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. f there is any sign of leaks or seepage the heater
should be isolated from the water supply and switch off until a competent
person has investigated the cause.
8 Do not block or restrict the discharge from any safety valve fitted.
9 Do not tamper with any safety valve fitted.
10 f water discharges from any safety valve, switch off the electrical supply
to the unit, isolate the water supply and contact a competent installer
familiar with unvented systems.
11 Please note that lime scale deposits form more readily at higher
temperatures.
12 The heater is not guaranteed against damage or failures caused by the
formation of lime scale.
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Zip Varipoint nstallation, Maintenance and User nstructions - November 2010 13
Main enance
Schedule
t is recommended that all key components of the heater should be inspected
six monthly for continued safe and efficient operation. The components to be
inspected should include the following:
1 Expansion relief valve. Check correct operation.
2 Expansion vessel pressure should be checked – refer to label on vessel
for correct pressure.
3 Pressure and temperature relief valve. Check correct operation.
4 All valves should be replaced after 5 years.
Fault Finding
Faul Possible causes
Water not heating 1 Electricity supply fault.
2 Over temperature cut-out tripped.
3 Faulty thermostat.
4 Faulty element.
Discharge from any relief valve 1 Thermostat fault.
2 Excessive mains water pressure.
3 Expansion vessel lost charge (if fitted).
4 Faulty expansion relief valve.
5 Faulty pressure reducing valve (if fitted).
T De-install the Heater
1 Switch off and disconnect the electrical supply.
2 Close the mains water supply isolating valve.
3 Disconnect the inlet and outlet water connections at the top of the unit.
4 Remove the heater.
5 Drain the unit through the hot water supply connection.
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14 Zip Varipoint nstallation, Maintenance and User nstructions - November 2010
Zip Varipoin II Overbasin
Iem Par No. Descrip ion
1VP0301 Element 2.2kW
2VP0303 Thermostat
3VP0304 Resettable Cut-Out
4VP0317 Element Gasket
5VP0322 Wall Fixing Bracket
Spare Par s
5
2
3
1
4
5
2
3
1
4
Zip Varipoin II Underbasin
I em Par No. Descrip ion
1VP0302 Element 2.2kW
2VP0303 Thermostat
3VP0304 Resettable Cut-Out
4VP0317 Element Gasket
5VP0322 Wall Fixing Bracket
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