
OPERATING AND INSTALLATION MANUAL LBE 250AO PAGE 7
USERS GENERALSPECIALIST PERSONNEL
Damage arising from a failure to comply with the operating and maintenance manual is not covered by the warranty.
This unit is not intended for use by persons, including children, with limited physical, sensory or mental capacities or lacking experi-
ence and/or knowledge, unless under supervision or instruction of a person responsible for their safety. Ensure that children do not
play with the unit.
After commissioning, the power supply and water supply may not be interrupted for longer than one day after commissioning in
order to ensure that hygiene requirements continue to be met.
Switching o the ventilation system
If the PKOM4heat pump combi-unit is taken out of operation for more than one day, the air humidification unit must be
switched o at least two hours beforehand. This will dry out the air humidification unit and ensure continued hygienic func-
tion.
Working on the device
Installation, commissioning, service and repairs must be carried out by an authorised specialist (specialised heating compa-
ny/installer). When working on the unit, it must be switched o and secured to prevent switching on. The water supply must
be interrupted.
UVC disinfection tube
The unit is fitted with a UVC tube as standard. This may only be replaced with a type as marked on the unit, in its original packaging.
The UVC tube may only be replaced by an authorised specialist! Before opening the unit or replacing a UVC tube, the unit
must be switched o, and the power plug removed from the socket. Never look at the UVC light source without protection
when it is switched on.
4.2 Unit setup – installation
The national and local regulations must be heeded when installing and setting up the unit. The unit may only be installed in compli-
ance with national installation regulations. Installation must be carried out in accordance with the general local building, safety and
installation regulations of the relevant community or the water and electricity department and other bodies.
The unit may only be installed in frost-free and dry rooms. The room temperature at the place of installation must be consistently
between +5°C min. and +35°C max.
The unit is designed for wall mounting and may only be set up on a suitable, load-bearing structure. The unit must not be exposed to
vibration of any kind.
Air ducts for the ventilation system which are not installed in heated areas must be appropriately thermally insulated (risk of temper-
atures dropping below the dew point) in order to avoid any build-up of condensation.
In structures such as windows with poor thermal insulation characteristics or faulty structural design as well as in old buildings, low
outdoor temperatures and increased room air humidity in living areas can lead to a build-up of condensation, for example on the win-
dow glass. The surface temperature of these components must be above the dew point temperature of the room air (approximately
+15°C at least).
During normal operation, the build-up of germs and mould in the unit is prevented, as the water in the humidification unit is continu-
ously treated and sterilised during operation.