THERMAL INTEGRATION DATA Extra HIU, Руководство по установке

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The DATA Extra HIU, Installation Instructions DE2, 12th August 2021
Service and Inspection
Components in the HIU, pipes and radiators may reach high temperatures. The HIU is designed for heat distribution networks
with water temperatures up to 95°C. The pipes and parts in the HIU as well as pipes and radiators in the heating system can also
reach this temperature. Contact can lead to burns.
To ensure the unit functions properly, it is advised to periodically inspect the installation.
Maintenance and repairs should be carried out by recognised personnel only.
Remove the power from the unit when performing maintenance and/or repairs.
Connect the flow and return valve from the district heating network.
Connect the flow and return valve on the unit.
Check the unit for leaks.
Check the primary and central heating strainer for debris and clean if necessary.
Check valves for debris and clean if necessary.
Check the unit operates satisfactorily in domestic hot water and central heating modes.
The casing can be cleaned with a damp cloth. Do not use detergents of any kind.
The unit uses electrical components (230Vac, 24Vdc & 5Vdc). These components must stay dry at all times. Contact with these
energised components can result in an electrical shock, burn, or electrocution.
Prolonged Absence or Holiday
Do not switch the unit off during periods of prolonged absence or holiday. To prevent frost damage within the unit or the distribution
network, the radiator and shutoff valves MUST remain open. Radiators can be switched to the frost protection position (slightly
opened) and/or the room thermostat lowered to a MINIMUM of 10°C. It is recommended to flush all water tapping points and showers
for at least 2 minutes after a long period of absence.
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