Operating Instructions

Siemens Building Technologies LUM4-SITS-GB0-KCWDB 06.02.2013 15/ 34
“Standard replacement” must be selected if the heat cost allocators of a different manufacturer must
be replaced by SIEMENS heat cost allocators. Previously used heat cost allocators include “WHE3x“,
“WHE3xZ“, “WHE46“ and “WHE46Z“.
Previously used heat cost allocators
Depending on the type of installation, a selection can be made from “none“, “WHE3x“, “WHE3xZ“,
“WHE46“ and “WHE46Z“, as the previously used heat cost allocator.
Sensor system of the new heat cost allocator
Depending on the selection of the previous parameters, “1-sensor” and “2-sensor” are available as the
sensor system for the new heat cost allocator.
The heat cost allocators with one sensor consist of one measuring sensor and one electronic counter.
The sensor measure the temperature and the counter records the consumed temperature difference
pulses.
The heat cost allocators with two sensors consist of two measuring sensor and one electronic counter.
The first sensor measures the temperature of the radiator surface. The second sensor measures the
room air temperature. The counter records the consumed temperature pulses.
The new heat cost allocator will be determined after the 3 parameters are selected. Step 2 for the
selection of the radiators to be equipped will be opened by clicking on “Next”.
The determination of the new heat cost allocator is valid for the entire property and can no
longer be changed after step 1 is completed. A new property must be established if the
selection of the new heat cost allocator must be changed. All settings established before will be lost.
Note: