WMZ-G1 Calorimeter (with Grundfos Direct Sensors)

The WMZ-G1 is a measurement and display unit for solar thermal systems and conventional heating systems.

It is possible to connect up to two Grundfos Direct Sensors™, which measure the temperature as well as one additional value – depending on the type: flow rate, relative or differential pressure.

If two Grundfos Direct SensorsTM are connected and at least one of them measures the fl ow rate (VFS-type), the heat quantity can be calculated. The WMZG1 also monitors the operating status of the system and displays deviations.

Recording of:
Flow temperature, Return temperature, Power, Heat quantity, Flow rate, Pressure, Differential pressure, System errors.

Features:

▪ Easy connection
▪ Dot matrix display
▪ Function control
▪ Configurable control parameters

Technical Data:

Housing: Plastic, PC ABS and PMMA
Protection class: IP 20 / EN 60529
Ambient temperature: 32 ... 104 °F
Display: Graphic display as well as bicolored LED

Power supply: 115 V~
Power consumption: approx. 2 VA
Measuring range: -22 ... +302 °F

Inputs: 2 Grundfos Direct SensorsTM VFS, RPS or DPS
Interface: RESOL VBus®

Note: Also available in a 12V (DC) version with certified power supply adaptor.