Envicool EMW90HDNC1U - Function Description

User Manual
2 Product Description
EMW90HDNC1U Air-cooled Chiller
7
Feature Description
EMW series air-cooled chillers are all-in-one
products developed mainly for heat dissipation in
the energy storage (such as battery) industry. The
applicable scenarios are as follows:

The battery in the energy storage container
generates a large amount of heat.

The equipment in the energy storage container
is sensitive to the ambient temperature.
EMW series air-cooled chillers mainly have the
following characteristics:
Table 2-2 EMW series air-cooled chiller features
Feature Description
Advanced
design

It adopts an integrated
structure, all parts are
encapsulated in a chassis,
which is convenient for
installation and maintenance.

It adopts modular design and
compact appearance.
Complete
functions

It supports smart refrigeration
and heating functions.

It supports RS485 and CAN
communication function.

It supports power-off memory
and self-start function.
Safe and
reliable

The coolant cooling method has
small temperature difference
and fast cooling, which can
effectively extend the battery
life and delay the attenuation.

It supports 24 hours * 365 days
continuous operation.
Energy
efficient

The high-efficiency controller is
used to control the cooling
output on demand to achieve
the best cooling and lowest
energy consumption.

Equipped with frequency
conversion compressor and
frequency conversion water
pump to realize double
frequency conversion
adjustment of cooling system
and coolant circulation system.
2.1.2 Function Description
Smart Refrigeration / Heating
The EMW90HDNC1U chiller is equipped with
high-efficiency controller, and supports a field
communicator to visually set control parameters,
which is easy to operate.
The controller monitors the coolant outlet
temperature (the control temperature type is
configurable) in real time, and intelligently adjusts
it according to the target temperature setting, so
that the battery operating temperature in the
container is stabilized within an appropriate
range.

When the coolant outlet temperature is higher
than the refrigeration set point and the
refrigeration start condition is met at the same
time, the chiller starts cooling and chooses to
output different refrigeration capacity
according to the actual temperature.

When the coolant outlet temperature is lower
than the refrigeration set point, the chiller
saves energy by turning off the compressor
and reducing the speed of the circulating
pump.

When the coolant outlet temperature is lower
than the heating set point and the heating start
condition is met at the same time, the chiller
will start electric heater.
RS485 / CAN Communication
The EMW90HDNC1U chillers communicate with
the host computer through the RS485 or CAN
(Controller Area Network) interface using Modbus
or CAN protocol. By sending request messages,
the host computer can perform operations such
as remote start-up and shutdown, query the
operating status of the chiller and set control
parameters to realize remote monitoring of the
chiller.
Power-off Memory and Self-start
After the chiller is powered off, it can memorize
the settings before power off, and it can
automatically and intelligently run according to
the memorized settings after the power is turned
on again.