WMZ-G1
© RESOL_10096
WMZ-G1.mon
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Included with the WMZ-G1:
1 x WMZ-G1
1 x VBus
®
slave board
1 x accessory bag
1 x spare fuse T4A
2 x screw and wall plug
4 x strain relief and screw
• Recording of:
flow temperature
return temperature
power
heat quantity
flow rate
pressure
differential pressure
system errors
• Especially for Grundfos Direct Sensors
™
• 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:
0 ... 40 °C
Size:
172 x 110 x 47 mm /
6.8" x 4.3" x 2.5"
Installation:
wall mounting,
mounting into patch panels is
possible
Operation:
three push buttons
at the front of the housing
Inputs:
2 Grundfos sensors
VFS,
RPS or DPS
Power supply:
115 V~
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 Grund-
fos Direct Sensors
™
. De pending on the
number and type of sensors connected,
the unit is capable to show tempera-
ture values, flow rates and relative or
differential pressures or a combina tion
of them.
Heat quantity measurement is possible
if two Grundfos Direct Sensors
™
are
connected and at least one of them is
a VFS type sensor. The optional calo-
rimeter especially takes into account
that the density and the specific heat
capacity of the heat transfer medium
depend on the temperature as well as
on the mixing ratio of water/ glycol.
Using these parameters and the
measure ment of flow rate, flow and
return temperature, the unit calculates
the heat quantity.
A power failure protection guarantees
that the adjusted system parameters
and the calculated heat quantity are
maintained in the case of power loss.
Different sensors can be chosen and
configured using the push buttons. The
temperature of the selected measuring
point, the heat quantity gained, the
current power or the flow rate of the
system are indicated on the display.
A control lamp and a relay are inte-
grated to indicate sensor defects and
ex ceeded or underrun value ranges.
Technical data and overview of functions
