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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

 

Summary of Contents for vThermt

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

Page 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...

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