DeltaSol
®
E
© RESOL 20160310 DeltaSol_E_V2.monen.indd
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6. Accessories
6.1 Sensors and measuring instruments
Temperature sensors
The product range includes high-precision platinum tem-
perature sensors, atscrew sensors, outdoor temperature
sensors, indoor temperature sensors, cylindrical clip-on
sensors, also as complete sensors with immersion sleeve.
Overvoltage protection device
In order to avoid overvoltage damage at collector sensors
(e.g. caused by local lightning storms), we recommend the
overvoltage protection RESOL SP10.
V40 owmeter
The RESOL V40 is a measuring instrument for detecting
the ow of water or water/glycol mixtures. After a speci c
volume has passed, the V40 reed switch sends an impulse to
the calorimeter. The heat quantity used is calculated by the
calorimeter using these impulses and the measured tem-
perature difference with the help of pre-de ned param-
eters (glycol type, concentration, heat capacity, etc.).
6.2 VBus
®
accessories
Smart Display SD3 / Large Display GA3
The RESOL Smart Display is designed for simple connec-
tion to RESOL controllers with RESOL VBus
®
. It is used
for visualising data issued by the controller: collector tem-
perature, store temperature and energy yield of the solar
thermal system. The use of high-ef ciency LEDs and lter
glass assures a high optical brilliance and good readability.
An additional power supply is not required. One module is
required per controller.
The RESOL GA3 is a completely mounted large display
module for visualisation of collector- and store tempera-
tures as well as the heat quantity yield of the solar system
via one 6-digit and two 4-digit 7-segment-displays. An easy
connection to all controllers with RESOL VBus
®
is possible.
The front plate is made of antire ective lterglass and is
printed with a light-resistant UV-lacquering. The universal
RESOL VBus
®
allows the parallel connection of 8 large dis-
plays as well as additional VBus
®
modules.
AM1 Alarm module
The AM1 Alarm module is designed to signal system fail-
ures. It is to be connected to the VBus
®
of the controller
and issues an optical signal via the red LED if a failure has
occurred. The AM1 also has a potential-free relay output,
which can e. g. be connected to a building management sys-
tem (BMS). Thus, a collective error message can be issued
in the case of a system failure. Depending on the controller
and the sensors connected, different fault conditions can
be signalled, e. g. sensor failures, excess or negative system
pressure as well as errors in the ow rate, such as a dry
run of the pump.
The AM1 Alarm module ensures that occurring failures can
be immediately recognised and repaired, even if the system
and the controller are dif cult to access or located in a
remote place. Thus, the reliability and the stable yield of the
system are ensured.
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