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Installation and maintenance instructions for uniSTOR 0020111105_00

7 Inspection and maintenance

Regular inspections and maintenance of the cylinder by
a competent person approved at the time by the Health
and Safety Executive are a prerequisite for long-lasting
operational readiness, reliability and a long working life.
The operational reliability of the cylinder may be
impaired and material damage and personal injuries may
result if the inspection and maintenance work is not car-
ried out.

The essential maintenance work on the cylinder and the
corresponding maintenance intervals are specified in the
table below.

i

When replacing parts, use only original replace-

ment parts from Vaillant Ltd.

Replacement parts

An overview of the available genuine Vaillant replace-
ment parts can be obtained from your wholesaler
(replacement parts catalogue, printed or on CD-ROM).

Maintenance work on

Maintenance interval

Cylinder

Check all connections to ensure that there are no leaks.

Annually

Check the temperature and pressure relief valve.

Annually

Check the expansion relief valve.

Annually

Check the charge pressure of the hot water expansion vessel.

Annually

Check water flow rates are correct (check and clean filters as necessary)

Annually

Ensure set temperatures are correct

Annually

Check the charge pressure of the expansion vessel, re-pressurise as necessary

Annually

Fill in the service section of the Benchmark cylinder commissioning checklist.

Annually

Tab. 7.1 Maintenance checklist

7.1

Checking the temperature and pressure relief
valve and expansion relief valve

>

Open each valve manually by turning the valve cap and
check whether water is able to flow to the drain via the
tundish without obstruction. Make sure that both valves
sit correctly in their idle position.

7.2

Checking the charge pressure of the
expansion vessel

>

Shut off the water supply pipe and open the nearest hot
water draw-off point to discharge the pressure from the
secondary water system.

>

Use a pressure gauge to check the expansion vessel
pressure at the measuring point. If the pressure is below
3.0 bar, increase it using a suitable air pump.

>

Fill in the maintenance section of the commissioning
report.

7.3

Draining the cylinder

>

Close the cold water supply pipe.

>

Secure a hose to the drain valve.

>

Place the free end of the hose in a suitable discharge
position. The opening should be around 1 m beneath the
cylinder.

>

Open the highest hot water draw-off point to reduce the
pressure and vent the water pipes, thus draining them
completely.

>

Open the cylinder drain valve and leave open until no
more water escapes and the cylinder is completely
empty.

>

Once the water has drained out, close the hot water
draw-off point and the drain valve.

>

Remove the hose from the drain valve.

7 Inspection and maintenance

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Содержание uniSTOR

Страница 1: ...Operating instructions For the operator GB IE Operating instructions uniSTOR domestic hot water cylinder ...

Страница 2: ...instructions 5 3 Description of the unit 6 3 1 1 Safety devices 6 3 1 2 Hot water temperature regulation 6 3 1 3 Functional elements of cylinder 6 4 Operation 7 4 1 Setting the hot water temperature 7 4 2 Using the electric immersion heater 8 4 3 Switching off hot water production 8 4 4 Frost protection 8 4 5 Cleaning the cylinder 8 4 6 Temporarily taking the cylinder out of service 8 4 7 Energy s...

Страница 3: ... danger Risk of death from electric shock b Symbol that denotes danger Risk of material damage Risk of damage to the environment i Symbol that denotes useful tips and information Symbol for a required action 1 4 Applicability of the instructions These operating instructions are valid exclusively for units with the following article numbers Unit type Cylinder volume Article number VIH GB 120 2 S 12...

Страница 4: ...y Council who manage and promote the Scheme Visit www central heating co uk for more information 2 Safety instructions 2 1 Safety and warning information When operating the system observe the basic safety instructions and the warning notes which appear before each of the actions 2 1 1 Classification of warnings The warning notes are classified in accordance with the severity of the possible danger...

Страница 5: ...on and servicing conditions Improper use of any kind is prohibited 2 3 Basic safety instructions Installation commissioning and maintenance Installation and adjustment as well as service mainte nance and repair must be carried out by a competent person approved at the time by the Health and Safety Executive and be in accordance with the relevant requirements of the Local Authority Building Regula ...

Страница 6: ...r Primary heating circuit thermal cut out 3 1 2 Hot water temperature regulation You can set the hot water temperature and primary heating times on the controller One of the following controllers may be used depending on the design of your system Vaillant dual channel eBUS controller Cylinder thermostat in conjunction with a timer Observe the operating instructions for the installed con troller or...

Страница 7: ...ylinder cold water connection which should have been fitted by your installer in an accessible position close to the cylin der 4 1 Setting the hot water temperature The hot water temperature is set to the required value by the competent person during cylinder commissioning If an external controller is installed for hot water tem perature control you can set the hot water temperature and primary he...

Страница 8: ... production Switch off the gas fired wall hung boiler see operating instructions for the gas fired wall hung boiler to tem porarily switch off the heating and hot water system 4 4 Frost protection b Caution Risk of damage due to frost If the cylinder is placed out of operation for a relatively long period of time in an unheated room e g during a winter holi day the cylinder must be completely drai...

Страница 9: ...which are already installed or can be retrofit ted in most circulation pumps Weather compensators often have ancillary functions for controlling circulation pump timings Consult your heating specialist company 4 8 Fault finding What do I do if Fault Remedy fluid is dripping from the system If possible collect the fluid in a bucket and inform a competent person the controller issues a message telli...

Страница 10: ...lting from improper maintenance or repair Failure to arrange for the system to be maintained and repaired and improper maintenance and repair can impair the operational safety of the unit leading to personal injury and material damage Never attempt to perform maintenance work or repairs on the cylinder yourself Always employ a competent person 6 Recycling and disposal Both the Vaillant cylinder an...

Страница 11: ...ompetent persons in accordance with all current and relevant safety building control and planning regulations and in full compliance with the manufacturer s instructions All unvented domestic hot water cylinders must be installed by a competent person to the prevailing build ing regulations at the time of installation G3 Terms and conditions apply to the warranty details of which can be found on t...

Страница 12: ...6 116 115 Primary heat exchanger volume litres 2 94 2 94 3 56 3 56 3 56 3 56 Primary heat exchanger surface area m2 0 62 0 62 0 75 0 75 0 75 0 75 Dimensions Height mm 1001 1191 1371 1593 1843 2153 Height with hot water draw off mm 1033 1223 1403 1625 1875 2185 Topple measure mm 1138 1308 1473 1680 1918 2217 Diameter mm 554 5 Depth mm 633 Net weight kg 26 29 32 36 41 46 Weight full kg 145 177 8 209...

Страница 13: ...i The heat up time is based on a flow rate of 1400 l h at 80ºC Temperature rise from 15ºC to 60ºC ...

Страница 14: ......

Страница 15: ......

Страница 16: ...0020111106_00 GBIE 062011 Subject to change Manufacturer Supplier ...

Страница 17: ...Installation and maintenance instructions For the competent person GB IE Installation and maintenance instructions uniSTOR VIH 2 S ...

Страница 18: ...let 16 5 3 2 Mounting the safety assembly 17 5 3 3 Mounting the expansion vessel 17 5 3 4 Mounting the drain valve 18 5 3 5 Laying the pipes to the tundish 18 5 4 Installation of discharge pipe 18 5 4 1 Design of discharge pipe 18 5 4 2 High drain 19 5 5 Electrical installation 20 5 5 1 Electrical connection of control components 20 5 5 2 Connecting up the electric immersion heater 21 5 5 3 Option...

Страница 19: ...Imminent danger to life Risk of severe personal injury Risk of minor personal injury e Symbol that denotes danger Risk of death from electric shock b Symbol that denotes danger Risk of material damage Risk of damage to the environment i Symbol that denotes useful tips and information Symbol for a required action 1 4 Applicability of the instructions These installation instructions are valid exclus...

Страница 20: ...e the Scheme Visit www central heating co uk for more information 2 Safety instructions and regulations 2 1 Safety and warning information When conducting installation and maintenance work observe the general safety instructions and the warning notes which appear before each of the actions 2 1 1 Classification of warnings The warning notes are classified in accordance with the severity of the poss...

Страница 21: ...umber The cylinder must be installed by a compe tent person approved at the time by the Health and Safety Executive to the prevailing standards installation book and building regulations at the time of installation 2 3 General safety instructions Installation commissioning up and maintenance Installation and adjustment as well as service mainte nance and repair must be carried out by a competent p...

Страница 22: ... standards Pressure equipment directive 97 23 EC Directive of the European Parliament and Council of 29th May 1997 for the approximation of the laws on pressure equipment of the Member States EN 12897 2006 Water supply specification for indirectly heated unvented closed domestic hot water cylinders EN 806 1 Specifications for installations inside buildings conveying water for human consumption Par...

Страница 23: ...nce with the relevant requirements of the Local Authority Building Regulations The Building Regulations Scotland The Building Regulations Northern Ireland and the relevant recommendations of the following British Standards BS 6700 Services supplying water for domestic use within buildings and their curtilages BS 6798 Specification for installation of gas fired boil ers not exceeding 60 kW input BS...

Страница 24: ...e cylinder 2 4 3 7 6 1 B A 5 5 8 DHW M M M Fig 3 1 Hydraulics diagram for the connection of the unvented domestic hot water cylinder Key 1 Gas fired wall hung boiler 2 Cylinder 3 Two port motorised valve 230 V supplied with cylinder 4 Electric immersion heater 5 Two port motorised valve 230 V 3 Description of the unit ...

Страница 25: ...Cylinder connection 8 Hot water expansion vessel 9 Tundish 10 Cylinder drain valve 11 Primary heater return 12 Cold water inlet 13 Primary heating circuit thermal cut out set to 80ºC to be con nected to the two port motorised valve in order to isolate the primary heat source if a fault occurs 14 Cylinder thermostat 25 C to 65 C 15 Primary heating circuit immersion sleeve NTC 16 Primary heater flow...

Страница 26: ...r properties uniSTOR 260 or 310 litres 3 1 1 Safety devices The cylinder is delivered with all safety and control devices for the operation of the unvented domestic hot water supply system Temperature and pressure relief valve 90 C 7 bar Pressure reducing valve 3 5 bar with line strainer Expansion relief valve one way valve 6 0 bar Thermal cut out for electric immersion heater Primary heating circ...

Страница 27: ...3 45 C 4 60 C 5 68 C Table 3 1 Setting the hot water temperature 3 1 4 Hot water temperature regulation You can control the hot water temperature using a Vaillant dual channel eBUS controller or a separate hot water controller a Danger Risk of burns and scalds Water at a temperature of more than 60ºC can escape from the water draw off point Install a hot water thermostat mixer in the hot water pip...

Страница 28: ...116 116 116 115 Primary heat exchanger volume litres 2 94 2 94 3 56 3 56 3 56 3 56 Primary heat exchanger surface area m2 0 62 0 62 0 75 0 75 0 75 0 75 Dimensions Height mm 1001 1191 1371 1593 1843 2153 Height with hot water draw off mm 1033 1223 1403 1625 1875 2185 Topple measure mm 1138 1308 1473 1680 1918 2217 Diameter mm 554 5 Depth mm 633 Net weight kg 26 29 32 36 41 46 Weight full kg 145 177...

Страница 29: ... valve connection 3 Secondary return 4 Primary heater flow Unit type a b c d e f g h i VIH GB 120 2 S 1033 1001 749 714 616 534 506 259 51 VIH GB 155 2 S 1223 1191 939 857 616 534 506 259 51 VIH GB 180 2 S 1403 1371 1119 992 616 534 506 259 51 VIH GB 210 2 S 1625 1593 1341 1158 616 534 506 259 51 VIH GB 260 2 S 1875 1843 1591 1346 616 534 506 259 51 VIH GB 310 2 S 2185 2153 1901 1578 616 534 506 2...

Страница 30: ...able transportation aid sack truck or similar Transport the packaged cylinder to the installation site Only remove the cylinder from its packaging once it reaches the installation site 4 3 Installation site Position the domestic hot water cylinder as near as pos sible to the heater to prevent unnecessary heat loss Place the cylinder in a suitable location in the building paying attention to the fo...

Страница 31: ... wrenches extensions etc b Caution Risk of damage from leaks Mechanical stress on supply lines can result in leaks and thus damage to the heat pump Avoid mechanical stress on supply lines 5 1 Installing pipes for the reheating circuit Make sure that the pipes in the reheating circuit between the gas fired wall hung boiler and cylinder are as short as possible Use copper piping with a minimum diame...

Страница 32: ...ter for a second circulation line Connect a WRAS approved circulation pump 4 with a non return valve to the secondary return Connect the circulation line 3 to the hot water pipe 2 5 3 Installation of cold mains inlet 5 3 1 Pressure in cold mains inlet The efficiency of an unvented cylinder depends on the available pressure in the cold mains inlet and the flow rate To obtain optimum cylinder output...

Страница 33: ...mm to ensure that the cylinder is as efficient as possible This is particularly important for installations with a balanced cold water inlet 3 Mount the safety assembly in the cold mains inlet on the cylinder If necessary establish the connection to the cold water inlet 3 with pressure compensation of the safety assembly Depending on the fittings used and the type of the draw off points it may be ...

Страница 34: ...d pressure relief valve At least 300 mm Max 600 mm Fig 5 5 Typical drainage installation The discharge connections of the temperature and pres sure relief valve and the expansion relief valve must be connected to the supplied tundish via 15 mm copper pip ing The tundish should be mounted vertically as close to the cylinder as possible and not more than 600 mm from the connection of the temperature...

Страница 35: ...vent children from coming into con tact with the waste water and provided that the system is not visible You must not install any valves or stop cocks in the discharge pipe Make sure that the discharge pipe from the tundish to the drain has a constant downward incline of at least 1 200 The discharge pipe from the pressure relief valve of the Vaillant gas fired wall hung boiler can be connected to ...

Страница 36: ... P of the current IEE regulations and all other applicable regulations and directives You can use standard commercial cables for the wiring Minimum cross section of conductors 1 5 mm2 Maximum length of bus cables 300m 230 V supply lines and bus cables must be laid sepa rately above lengths of 10 m i The discharge pipes of the tundish drain valves and motorised valves etc must be laid at a dis tanc...

Страница 37: ...1 Fig 5 9 Electrical connection of electric immersion heater Key 1 Protective earth terminal PE 2 Cable grip 3 Electric immersion heater 4 Neutral conductor terminal N 5 Outer conductor terminal L e Danger Risk of death from electric shock Without potential equalisation life threat ening voltage can reach the piping and water draw off points Earth the electric immersion heater b Caution Corrosion ...

Страница 38: ...all hung boiler and control components used Gas fired wall hung boiler used eBUS compatible gas fired wall hung boiler such as the Vaillant ecoTEC or non eBUS compatible gas fired wall hung boiler from Vaillant or a third party manufacturer Wiring Wiring via the Vaillant VR 61 mixer module or Control Center VR 65 as a system solution which enables Vail lant dual channel eBUS controllers low voltag...

Страница 39: ...Vaillant dual channel eBUS controller Vaillant dual channel eBUS controller with VR 65 S plan 1 fig 5 10 Vaillant ecoTEC eBUS compatible VR 65 Vaillant dual channel eBUS controller Vaillant dual channel eBUS controller with VR 65 Y plan 2 fig 5 11 Non eBUS compati ble boiler from a third party manufac turer Standard cabling box Programmable timer and room thermostat Timer S or Y plan 6 fig 5 12 Ta...

Страница 40: ...ring diagrams Connection wiring diagram 1 S plan C 2 1 230 V grid VR 65 CH DHW BUS DHW NTC CYL 2 1 N PE on N PE L off on N PE on DO NOT USE M PE Blue Brown DHW M PE Blue Brown CH Cylinder thermostat and TCO 2 2 NTC BUS Vaillant ecoTEC BUS Vaillant dual channel eBUS controller 2 PE 3A N L Cylinder Fig 5 10 Connection wiring diagram 1 5 Installation ...

Страница 41: ...ect the terminals 1 cylinder thermostat 3 fig 5 8 and C reheating circuit TCO 5 fig 5 8 to the terminal CYL of the VR 65 Mount the cover for the cylinder thermostat The electrical installation of the eBUS connection is described in the installation instructions for the Vaillant dual channel eBUS controller Install the eBUS connection from the gas fired wall hung boiler to the Control Center VR 65 ...

Страница 42: ...plan C 2 VR 65 2 1 N PE on N PE L off on N PE on DO NOT USE M 2 2 NTC BUS Vaillant ecoTEC BUS Vaillant dual channel eBUS controller 2 PE 3A N L Cylinder 230 V grid CH DHW BUS DHW NTC CYL PE Blue Brown or white Grey Orange Cylinder thermostat and TCO 1 Fig 5 11 Connection wiring diagram 2 5 Installation ...

Страница 43: ...tallation instructions for the Vaillant dual channel eBUS controller Install the eBUS connection from the gas fired wall hung boiler to the Control Center VR 65 Install the eBUS connection from the gas fired wall hung boiler to the Vaillant dual channel eBUS cont roller The electrical installation of the zone valves is described in the installation instructions for the VR 65 Connect the 3 way valv...

Страница 44: ... on the use of cleaning agents for the system can be obtained from Sentinel Betz Dearborn Ltd Widnes Cheshire WA8 8UD Tel 0151 420 9595 or Fernox Alpha Fry Technologies Tandem House Marlow Way Croydon CR0 4XS Tel 0870 8700362 6 2 Water treatment b Caution Risk of material damage due to unsuita ble water Unsuitable water can lead to deposits and corrosion damage in the cylinder and in the hot water...

Страница 45: ... supplementary water Once this triple system vol ume is exceeded the water will have to be treated exactly the same as in case of exceeding the limit values given in Table 6 1 softening desalination hardness stabilisation and desludging Table 6 1 Guidelines for the heating water Water hardness Heating water characteristics Unit Low salt Saline Electrical conductivity at 25ºC S cm 100 100 1500 Appe...

Страница 46: ...ck it into this position Flush the entire primary central heating system including the reheating circuit with cold and hot water Flush fill and vent the central heating system in accordance with the installation instructions of the gas fired wall hung boiler Release the lever on the two port motorised valve by placing it in the AUTO position 1 2 3 4 5 1 2 3 Fig 6 2 Setting thermostats Remove the f...

Страница 47: ...oning checklist located on the last few pages of these instructions 6 7 Handover to the operator You must brief the operator of the unit on the handling and function of the cylinder Provide the operator with all relevant instructions and unit documentation Go through the operating instructions with the operator and answer any questions Draw special attention to the safety instructions which the op...

Страница 48: ...k the charge pressure of the expansion vessel re pressurise as necessary Annually Fill in the service section of the Benchmark cylinder commissioning checklist Annually Tab 7 1 Maintenance checklist 7 1 Checking the temperature and pressure relief valve and expansion relief valve Open each valve manually by turning the valve cap and check whether water is able to flow to the drain via the tundish ...

Страница 49: ...ns a Danger Risk of death from electric shock Improperly executed work on the cylinder can result in a risk to life and limb Faults may only be eliminated by a com petent person approved at the time by the Health and Safety Executive b Caution Risk of damage due to overheating Not all electric immersion heaters have a thermal cut out Use only Vaillant Ltd electric immersion heaters with a thermal ...

Страница 50: ...the two port valve Vent the reheating heat exchanger Check the thermal cut out and repair the fault Replace the cylinder thermostat Water flows out of the expansion relief valve only when heating up Dirt on the valve seat of the expansion relief valve Check the seat of the expansion relief valve and repair the fault Pressure reducing valve faulty Check whether the pressure behind the pressure redu...

Страница 51: ...Prevent the power supply from being switched on again Ensure that any electrical work is carried out by a qualified competent person Switch the boiler off Drain the cylinder section 7 3 Dismantle the hydraulic connections Dismantle the temperature sensor Remove the wiring for the temperature sensor from the boiler or external controller 10 Recycling and disposal Both the cylinder and its transport...

Страница 52: ...alled in accordance with The Water Regulations of England and Wales Water supply and fittings Regulations 1999 within England and Wales or Scotland The Water Byelaws Eire Compliance with IS standards and Local Council regulations Compliance with the Building regulations England and Wales Scotland Northern Ireland Eire Terms and conditions apply to the warranty details of which can be found on the ...

Страница 53: ...Commissioning checklist and service record ...

Страница 54: ...and pressure relief valve and expansion valve been WWHG and discharge tested Yes No The tundish and discharge pipework have been connected and terminated to Part G of the Building Regulations Yes Are all energy sources WWHG with a cut out device Yes No Has the expansion vessel or internal air space been checked Yes No THERMAL STORES ONLY What store temperature is achievable C What is the maximum h...

Страница 55: ...omments Signature SERVICE 3 Date Engineer Name Company Name Telephone Number Comments Signature SERVICE 4 Date Engineer Name Company Name Telephone Number Comments Signature SERVICE 5 Date Engineer Name Company Name Telephone Number Comments Signature SERVICE 6 Date Engineer Name Company Name Telephone Number Comments Signature SERVICE 7 Date Engineer Name Company Name Telephone Number Comments Si...

Страница 56: ...0020111105_00 GBIE 062011 Subject to change Manufacturer Supplier ...

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