User Manual

2
Siemens
A6V10786229_en
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_e
Building Technologies 2017-05-12
Application
The electronic heat cost allocators WHE5.. and WHE6.. are designed for decentralized
installation and used when heating costs must be allocated to several consumers based on
actual consumption. The temperatures are acquired by one (radiator) or two sensors
(radiator and room temperature sensor). In two-sensor mode, the actual temperature
difference between room temperature and radiator temperature is acquired, while in one-
sensor mode, a constant value for the room temperature is predefined.
These measured values are used as the basis for calculating consumption. Main area of
application is in central heating systems, where the heating energy is used individually by the
different consumers.
The WHE5../WHE6.. can be operated as a one- or two-sensor measuring system with
product or unit scale.
Such systems are used in e.g.:
● Multi-family houses
● Office and administration buildings
Typical users:
● Service and billing providers
● Housing industry and housing cooperatives
● Building service companies and real estate agencies
The heat cost allocator is used in connection with the following types of radiators:
● Ribbed radiators
● Tubular radiators
● Panel-type radiators with horizontal or vertical water flow
● Radiators with internal tube register
● Convectors and bathroom radiators
Compatibility
The WHE54.. and WHE63.. replaces the WHE55.. and WHE56.. In addition to improved
energy management, the WHE54.. and WHE63.. can be operated in different RF modes and
are compatible with the WHE55.., WHE56.. as well as WHE3.. and WHE4…The existing
heat conductors of the WHE3.. and WHE4.. device families can be reused with the WHE5...
and WHE6.. The non-communicating WHE50.. (B-series) is compatible with the WHE3.. and
WHE50.. (A-series).
Note
The WHE2.. cannot be replaced by the WHE5.. order WHE6.., since both the measuring
algorithm and the RF transmitter fitted in the heat cost allocator (with WHE26) are not
compatible.
One- and two-sensor measuring system
The joint use of different device types in one and the same property is only permitted as long
as they all use a standard measuring system and have a standard measuring algorithm.
Two-sensor heat cost allocators can be operated unconfigured and as often as you want in a
one-sensor heat cost allocator.
Restrictions
Electronic heat cost allocators cannot be used in connection with steam heaters, fresh-air
radiators, floor heating systems, ceiling heating elements or flap-controlled radiators.
In the case of combined valve and flap-controlled radiators, measuring devices may only be
installed if the flap control unit has been removed or disabled in the "open" position.
Convectors that can change their output through an electric fan, or towel heaters with an
electric heating cartridge, must not be fitted with electronic heat cost allocators unless the
respective electric system has been removed or disabled.