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.
Flow temperature, Return temperature, Power, Heat quantity, Flow rate, Pressure, Differential pressure, System errors.
▪ Easy connection
▪ Dot matrix display
▪ Function control
▪ Configurable control parameters
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.