Sontex 56 Series User Manual

47
Instruction for Use | HCA 56x and 8x8
10. Rating Factors
10.1 Taking Measurement
The value displayed by the heat cost allocator has to be converted to the value of the actual
heat output of each radiator. Thereby the design and the performance of the radiator as well as
the mode of installation have to be taken into account.
Therefore each radiator has to be identified precisely by taking measurements. The following
data have to be established:

Design and make of radiator

Overall length

Overall height

Overall depth

Number of sections

Pitch

In-line configuration
10.1.1 Rating of Radiators with Over Length or High Nominal Power
If the radiator has an overall length of approx. 3 m we strongly recommend installing two heat
cost allocators.
Under certain circumstances minimal flows might not be noticed on these radiators. The same
applies for radiators with an extremely high nominal output of more than 10.0000 watt =10kW.
At least two heat cost allocators should be installed to these radiators. The standard perfor-
mance of each radiator is divided by the number of heat cost allocators installed.
Example: Standard performance KQ= 16.000 W = 16
Number of heat cost allocators installed to the radiator = 2
KQ individual = 16 / 2 = 8
10.1.2 Rating of Radiator
For each radiator type the K-value is calculated according to the following diagram:
The heat cost allocator determines the heat output of the radiator, displays the consumption
and records the consumption values on the set day.
The heating medium temperature is captured by the temperature sensor installed to the
radiator. Thus the heat output of the radiator is calculated in consideration of the radiator per-
formance.
These calculations are started as soon as the temperature difference between ambient tem-
perature and heating medium temperature is bigger than the parameterised value.
Out of this functional principle the necessity arises to rate the display of the heat cost allo-
cator. For the calculation of the heat output of the radiator it is not sufficient to measure the
heating medium temperature. Radiators with different performances also feature different heat
output quantities even if the heating medium temperature is the same. Furthermore different
Radiator :
-type
-model
-dimensions
Nominal power in
KW, vendor factor
Functional and
mounting principle
- Direct with 1 or 2
sensors
-Wall mounting
(remote sensor)
K
Q
Internal consign
temperature,
normally = 1.0 *
Kc value from the
table
K
C
K
T
* if not, take the vendor factors
K

Sontex 56 Series Specifications

General

Brand	Sontex
Model	56 Series
Category	Measuring Instruments
Language	English