MEX VS
Chillers and inverter air / water heat pumps with axial fans
10
5.9
MONITORING AND PROTECTION DEVICES
All units are standard supplied with the following monitoring and protection devices: return water temperature sensor installed at
the return water pipe line from the plant, operating and antifreeze sensor installed at the outlet pipe of the water to the plant,
high pressure transducer, low pressure transducer, compressor’s inlet and outlet temperature sensors, compressors thermal
protection device, fans thermal protection device, water side installed water flow switch to protect the evaporator, high pressure
HP flow switch.
5.10
HYDRAULIC CIRCUIT
The
MEX VS
chillers units are supplied with an integrated hydraulic circuit including: circulating pump with high efficiency DC
brushless motor (EEI≤0,23 for the sizes 112 RH and 115 RH, however for 15 RH, 16 RH, 18 RH and 19 RH EEI≤0,20), suitable for
chilled water utilization and directly run by a controller on board, plate heat exchanger, expansion vessel (The expansion vessel
capacity depends on the size of the unit, refer to the technical data shown in chapter 12), safety valve (6 bar) that have to be
connected with a colleting tank, the manual air release valve and the flow switch.
5.11
FAN SPEED CONTROL
This type of control is managed by the microprocessor and is necessary for optimizing
the pressure
of
evaporation/condensation
during
summer/winter
operation in order to allow proper running of the unit.
6
AVAILABLE VERSIONS
MEX VS
reversible heat pump with integrated hydronic system (expansion vessel, safety valve, pressure gauge, modulating pump,
flow switch, manual air release valve, load/unload valve).
The available models are: 15RH, 16 RH, 18 RH, 19 RH, 112 RH, 112T RH, 115 RH, and 115T RH. The sizes of 112 RH and 115 RH are
available in both single-phase and three-phase electric power. However the other sizes are all single-phase electric power units.
Accessory denomination:
Field
Variant
Description
Name
KA
1
The antifreeze kit uses a self-regulating heating cable wrapped around the
basement of the outdoor unit near the condensing coil and two in PET heaters
placed on the faces of the plate heat exchanger.
KA
WARNING: The antifreeze kit is an optional factory-installed accessory and cannot be mounted after purchasing
the unit.
Summary of Contents for MEX VS 112 RH
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