Technical Data; Electronics Module; Wmz 25; Device Information - Dimplex WMZ 25 Montage- Und Gebrauchsanweisung

5
5

Technical data

5.1 Electronics module

Performance data
Voltage supply
Power consumption
Voltage for pulse (from HPM only!)
Degree of protection according to EN 60529
Fig 8: Electronic data for electronics module
Fig 9: Schematic representation of the PCB in the electronics module
ATTENTION!
Disconnect the power supply before opening the device
The PCB, which is partly covered by a yellow plastic casing, is lo-
cated in the upper part of the plastic casing of the electronics
module.
Both the PCB and the yellow casing cover are mounted via two
fixing screws.
Under the yellow cover, there are three green LEDs (see Fig 9: ),
indicating the following functions:

5.2 WMZ 25

5.2.1 Device information

Performance data
Permissible volume flow measuring range
Permissible temperature measuring range
Operating temperature
Storage temperature
Hydraulic connection
Max. operating pressure
Fig 10: Device information, WMZ 25
EN-10
230 V, 50 Hz
approx. 3 W
24 V AC
IP 20
LED 1: Continuous ON: Measurement operation active,
quantity of thermal energy is being acquired. Flashing (1s
ON; 7s OFF): No measurement operation, heat pump is
switched off.
LED 2: ON: The pulse for thermal energy metering is being
emitted.
LED 3: ON: A temperature comparison is being carried out.
Measurement operation is always active for at least 5 minutes. If
no output is measured during this period, measurement opera-
tion is deactivated and no further pulse is emitted.
Function of button S1 (see Fig 9: ):
Pressed for 1s - a test pulse is emitted. When the installation
and heat pump manager configuration (according to see
Chap. 3.4 on p. 7 and see Chap. 4 on p. 9) are correct, the
thermal energy meter in the heat pump manager totals the
quantity of thermal energy.
Pressed for 4 s - manual comparison of the temperature
sensors. The comparison ends automatically.
ATTENTION!
A manual comparison must be carried out during start-up and at regular
intervals (after-sales service intervals) if a dual differential pressureless
manifold is used.
The heat pump must be switched off prior to a manual compari-
son.
More or less the same temperature must be measured at both
temperature sensors (flow and return flow temperature). This
temperature comparison is carried out with the heat pump
switched off after approx. 10 minutes runtime of the circulating
pump
500l/h to 2500l/h
25 °C to 80 °C
0°C to 35°C
-15°C to 60°C
Both pipes 1" each
3 bar