Installation; Mounting; Electrical Connection; Flowmeter - Resol WMZ Manual

WMZ
1.

Installation

1.1 Mounting

cover plate
cable bushings
with strain relief
hanging
attachment

1.2 Electrical connection

sensor terminals
RESOL VBus

1.3 Flowmeter

A flowmeter RESOL V40 is used in order to determine the
volumetric flow rate in the solar circuit. The installation is to
be carried out taking the flow direction into consideration
(consider direction indication on the flowmeter). In order
to tranquilise the flow ratio, an inlet and an outlet distance
of 30 cm in front of and behind the flowmeter have to be
taken into account.
display
The device has to be located in a dry interior place. It is not
suitable for installation in hazardous locations and should
not be installed near to any electromagnetic fields. The de-
vice must additionally be equipped with an all-polar gap of
push button
at least 3 mm or with a gap according to the valid installaton
regulations, e.g. LS-switches or fuses. Please pay attention to
a separate laying of the sensor lines and the power supply.
fuse T4A
1. Unscrew the cross-head screw of the cover and remove
2. Mark the upper fastening point on the underground and
3. Hang up the housing at the upper fastening point and
4. Hang up the housing at the top and fasten it with the
fuse
The power supply of the controller must be carried out
via an external power supply (last step!). The supply voltage
must be 115 Volt (50 ... 60 Hz). Flexible cables are to be
attached to the housing using the enclosed strain reliefs and
the respective screws.
In order to use the RESOL WMZ along with a flowmeter
RESOL V40, the following connection is to be carried out
earthing
clamps (polarity of the separate terminals is arbitrary):
mains terminals
1 / 2 = sensor S1 (feed flow temperature)
3 / 4 = sensor S2 (return temperature)
5 / 6 = flowmeter V40
9 / 10 = RESOL VBus
The mains connection is carried out via the terminals:
19 = neutral conductor N
20 = line L
12 / 13 / 14 = gound terminals
Note: Versions V40 0,6 to 2,5 are suited for horizontal as
well as for vertical installation. Versions V40 3,5 to 15 are for
horizontal installation only. In order to avoid a pressure sur-
ge caused by cavitation in hydraulic systems, the heat trans-
fer fluid should be filled in when it is cold, and de-aerators
should be used. Pressure surge and turbulent flow ratios
lead to damage of the sensitive measuring instruments.
Warning!
Switch-off power supply and discon-
nect from mains before opening the
housing!
it along with the cover from the housing.
pre-assemble the enclosed dowel and screw.
mark the lower fastening point on the underground
(hole-center distance 130 mm), afterwards fit the lower
dowel.
lower fastening screw
Electrostatic discharge can cause damage of elec-
tronic components
Warning: high-voltaged components
®
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