Thermal Energy Meter Wmz; Transport; General Description - Dimplex SIH 20TE Installation And Operating Instruction

SIH 20TE

4.4 Thermal energy meter WMZ

4.4.1 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!
4.4.2 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
in the heating return flow
www.gdts.one
L / N / PE
230 V / 50 Hz
24 V AC
N1/IDX
Pulse, thermal energy meter
452234.66.77 · FD 9912
5

Transport

For the transport by means of a hand truck or boiler trolley, po-
sition the latter under the front end of the unit below the trans-
port security device.
For transport on a level surface, the unit can be lifted from the
rear or from the front by means of a lift truck or forklift. In this
case, the transport securing device is not imperative.
45°
ATTENTION!
The heat pump must not be tilted more than max. 45° (in
either direction).
After the transport, the transport securing device is to be re-
moved on either side at the bottom of the unit.
ATTENTION!
The transport securing device is to be removed prior to
commissioning.
To remove the panelling, open the individual covers by un-
screwing the respective turn-lock fasteners and then gently tilt-
ing the covers away from the device. Then lift them up out of
the mountings.
English
Remove/screw in
transport lock
45°
EN-5