Building Management Technology; Room Climate Control Station; Thermal Energy Meter Wmz - Dimplex WI 140TUR+ Installation And Operating Instruction

WI 140TUR+
4.4 Building management
technology
The heat pump manager can be connected to a building man-
agement system network via supplementation of the relevant
interface plug-in card. The supplementary installation instruc-
tions of the interface card must be consulted regarding the
exact connection and parameterisation of the interface.
The following network connections can be made on the heat
pump manager:
 Modbus
EIB, KNX

Ethernet

ATTENTION!
If the heat pump or circulating pump is controlled externally,
an flow rate switch is required to prevent the compressor
from being switched on when there is no volume flow.

4.5 Room climate control station

With cooling using panel heating/cooling systems, regulation is
carried out according to the room temperature and humidity
measured by the room climate control station.
This is done by setting the desired room temperature on the
heat pump manager. The minimum possible cooling water tem-
perature is calculated from the room temperature and humidity
measured in the reference room. The control response of the
cooling system is influenced by the currently measured room
temperature and the set room set temperature.
Fig. 4.1: Room climate control station
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4.6 Thermal energy meter WMZ

4.6.1 General description
The thermal energy meter (WMZ 25/32) is used for measuring
the quantity of thermal energy supplied. It is available as an ac-
cessory. Due to the additional heat exchanger, two thermal en-
ergy meters are required for measuring the quantity of thermal
energy.
Sensors in the flow and return of the heat exchanger pipes and
an electronics module acquire the measured values and trans-
mit a signal to the heat pump manager, which, depending on
the current operating mode of the heat pump (heating/DHW/
swimming pool), totals the thermal energy in kWh and displays
them in the operating data and history menu.
NOTE
The thermal energy meter complies with the quality
requirements of the German market incentive programme
subsidising efficient heat pumps. The thermal energy meter is
not subject to obligatory calibration, and can thus not be used
for the heating cost billing procedure!
4.6.2 Hydraulic and electrical integration of
the thermal energy meter
The thermal energy meter requires two measuring devices for
data acquisition.
A measuring tube for the flow measurement

This must be installed in the heat pump flow (observe flow
direction).
A temperature sensor (copper pipe with immersion sleeve)

This must be installed in the heat pump return.
The installation locations for both measuring tubes should be
as close to the heat pump as possible in the generator circuit.
The distance from pumps, valves and other installations must
be taken into account, as eddying effects could lead to incor-
rect thermal energy metering (a calming section of 50 cm is
recommended).
Thermal energy meter casing - electronics
in the heating flow
452234.66.76 · FD 9912
230 V / 50 Hz L / N / PE
Pulse, thermal energy meter
in the heating return flow
English
24 V AC
N1 / IDX
EN-5