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H E A T I N T E R F A C E U N I T

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H E A T I N T E R F A C E U N I T

This brochure is current as from the publication date. This brochure should not be regarded as an infallible

guide and is not an offer for sale of any particular product. Vital Energi Utilities Limited expressly disclaims

any liability in relation to the accuracy or completeness of this information. Any reliance or use of the

information contained within this brochure is at your risk. Vital Energi reserves the right to modify the

We strongly recommend you contact Vital Energi to confirm the specifications are to your satisfaction.

[May 2019]

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Содержание vThermt

Страница 1: ...Installation Commissioning and Maintenance Manual Version No 002 Always keep the instructions close to the HIU and read the operating instructions carefully before starting any work...

Страница 2: ...ydraulic separation between the primary circuit and the secondary DHW and HTG installations The HIU is thermostatically controlled to give good and reliable control of temperature which improves effic...

Страница 3: ...g safely and take extreme care DANGER Electrical hazard Failure to follow safety procedures can result in severe injury or death This work may only be performed by a trained electrician CAUTION Risk o...

Страница 4: ...ures based on the manufacturer literature DANGER Electricity can cause serious and fatal injuries Always isolate the electrical supply and test before commencing work Before undertaking any work on th...

Страница 5: ...nstalled in the outlet of the HTG plate A manometer and thermometer are installed on the heating flow pipework within the HIU This is visible through the front cover of the HIU This gauge displays the...

Страница 6: ...AISI 316L Cu Brazing Insulation Expanded Polypropylene Some other materials are used by component manufacturers such as valves and pumps These are in sealing shafts and other small components of the a...

Страница 7: ...HIU must only be installed in a suitable location that provides protection against moisture and freezing temperatures The location must have sufficient ventilation to prevent heat build up within the...

Страница 8: ...s Step 4 Fit the frame to the wall Step 5 Slide the insulation back onto the valve rail backplate Step 6 Replace all valves Step 7 Fit tighten the nuts and bolts 2 x A and 1 x B so they are secure in...

Страница 9: ...alve 8 Heating Heat Exchanger 9 Heating Actuator 10 Heating Control Valve 11 Heat Meter Flow Sensor 12 Pump 13 Junction Box 14 Check Valve 15 Mini Expansion Vessel 16 Expansion Vessel REF COMPONENT 17...

Страница 10: ...ion box Before adding power to the unit verify that no electrical connections have been disconnected on the components All accessories and main power supply will be connected in the junction box housi...

Страница 11: ...sink tap until a cold clean steady flow of water is achieved Open each DHW outlet within the property until all air and any remaining debris has been flushed through Check HIU for leaking joints on t...

Страница 12: ...connections tighten connections as required Do not overtighten the fibre washers as this will result in damage Should a fibre washer become damaged replace the washer immediately ensuring to isolate...

Страница 13: ...below which identifies the location of the heating PICV Before undertaking any of the steps below close primary system isolation valves at the top of the HIU and confirm electrical connection is isola...

Страница 14: ...or three minutes Complete the Heating section of the Commissioning sheet whilst the HTG is on Switch the HTG off at the room thermostat and isolate the HIU at the fused spur Close the secondary HTG is...

Страница 15: ...t be removed after filling Every 2 years Bypass If present check that the flushing bypass valve is closed Every 2 years Pump Check pump setting is Proportional Pressure Auto Adapt Every 2 years HTG Co...

Страница 16: ...cted correctly if connected correctly and flow temperature is low consult network operator 10 Plate heat exchanger is blocked Remove PHE clean and re install or replace if necessary FAULT POSSIBLE CAU...

Страница 17: ...ted expressly disclaims any liability in relation to the accuracy or completeness of this information Any reliance or use of the information contained within this brochure is at your risk Vital Energi...

Страница 18: ...viable sustainable energy solutions for the future For more information about the vTherm t Heat Interface Unit HIU call 01254 296 000 or email hiusales vitalenergi co uk www vitalenergi co uk vTherm...