2
Scope of supply
2.1 General description
The thermal energy meter (WMZ 25 or WMZ 32) is a measure-
ment device for measuring the quantity of thermal energy sup-
plied by the heat pump.
For this purpose, sensors are installed in the heat pump flow and
return flow. The electronics module acquires the measured val-
Fig 1: Hydraulic and electrical components of the thermal energy meter
2.2 Scope of supply
2.2.1 Scope of supply, WMZ 25
The following components are included in the scope of supply:
1x thermal energy meter electronics module for wall mount-
ing (incl. sensor for VFS measuring tube and NTC-10 tem-
perature sensor)
1x measuring tube VFS 5 - 100
1x pipe section - WMZ-25 cpl.
2.2.2 Scope of supply, WMZ 32
The following components are included in the scope of supply:
1x thermal energy meter electronics module for wall mount-
ing (incl. sensor for VFS measuring tube and NTC-10 tem-
perature sensor)
1x measuring tube VFS 10 - 200
1x pipe section - WMZ-32 cpl.
ues and transmits a signal to the HPM. Depending on the current
operating mode of the heat pump (heating / domestic hot water /
swimming pool), the HPM totals the thermal energy on a dedi-
cated meter. The operating mode is determined by the operation
of the respective circulating pump.
2x screw connections 1" - 3/4" incl. O-rings
1x reducing sleeve 1" - 3/4"
1x reducing nipple 1" - 3/4"
1x mounting clip for sensors
1x installation instructions
2x screw connections 11/4" - 1" incl. O-rings
1x screw-in piece 1" internal thread - 1 1/4" external thread
1x reducing nipple 11/2" - 1"
1x mounting clip for sensors
1x installation instructions
2.2
EN-3