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1.
Regulations / Safety Notices
This installation and operating manual must be read before the unit is started up!
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The heat pump water heater (HPWH) is designed exclusively for the heating of domestic or potable
water within the specified operating temperature limits! The heating of liquids other than drinking
water is not permissible. The technical regulations for the drinking water installation (DIN 1988)
must be adhered to.
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The temperature of the exhaust air supplied to the unit should not fall below +15 °C (ice build-up on
the evaporator). The energy-efficient operation of the heat pump decreases as the exhaust air
temperature decreases.
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In the design and construction of the HPWH, all relevant EC directives have been complied with
(see also EC Declaration of Conformity).
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The qualified expert must ensure that prior to the commencement of any maintenance/repair
activities on refrigerant-carrying parts, the refrigerant has been removed to such an extent as
necessary for the safe performance of this work. The refrigerant must be handled and disposed of
in accordance with applicable regulations and must not be released into the atmosphere!
(Refrigerant R134a is CFC-free, non-flammable and has no ozone-depleting properties).
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When working on the HPWH, the unit must always be disconnected from the power source (pull
the plug).
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The electrical connection of the HPWH must be performed according to and conforming with all
relevant VDE, EN and IEC standards. Beyond that, the technical connection requirements of the
local utility companies have to be observed.
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The following is not permitted:
- operation of the unit by means of exhaust air posing an explosion hazard or containing solvents
- use of exhaust waste air laden with grease, dust or sticking aerosols
- connection of exhauster hoods to the ventilation system
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The operating of the unit is not permitted:
- with empty storage tank
– during the construction phase
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The unit must not be installed:
- outdoors
- in areas where there is a danger of freezing
- in wet rooms (e.g. bathrooms)
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For the air-side connection of the HPWH the standards and directives in force
- DIN 1946 T1, T2, T6 Ventilation and Air Conditioning
- DIN 2088 Residential Ventilation Systems
- VDI 2087 Airducts,
must be adhered to.
Caution!
Any work on the hot water heat pump may only be performed by qualified persons! All relevant accident
prevention regulations have to be observed!
