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Control Unit With Lcd Display (Standard) - Mitsubishi Electric CLIMAVENETA NECS-ME Series Technical Bulletin

Condenserless chiller
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2.6 Control unit with LCD display (standard)

The new "W3000 Base" control unit is installed on all NECS-ME
0152..0612 units.
The new "W3000SE Compact" control unit is installed on all
NECS-ME 0604..1604 units.
Main functions: QuickMind, local and remote FWS supervi-
sion, dual set point management, etc, confi rm Climaveneta's
commitment to continually developing its electronics technol-
ogy.
The heat pumps, moreover, are fi tted with the original Cli-
maveneta defrosting control system called "Autotuning Defrost"
which considerably reduces defrosting times, thus improving
the energy performance of the unit. Interfaces with BMS sys-
tems: METASYS®, MODBUS®, LONWORKS®, SIEMENS®,
TREND®.
Black Box logs data relative to 200 alarm events which can be
printed with a personal computer.
12
11
10
9
8
7
6
5
4
3
2
11.34
Step-wise regulation
Regolazione a gradini
7.54
Quickmind
5.9
4.56
4.3
3.9
0.5
1.5
2.5
3.5
Minimum water content in the plant lt/kW
NECS-ME
QuickMind is a special control unit which monitors the main
operating parameters, predicts system behaviour and antici-
pates unit settings in order to constantly optimise performance;
it allows both return and delivery water temperatures to be
chosen as adjustment parameters. It can reduce outlet tem-
perature fl uctuations even with a small amount of water in
the system. When, for dual-compressor chillers featuring a
maximum of 12 start-ups per hour and using a traditional ad-
justment system, the minimum recommended water content
is 5.5 l/kW. QuickMind ensures the same chiller operates cor-
rectly even with a water content of just 2.5 l/kW and considera-
bly reduces outlet temperature fl uctuations. The above graph
shows that outlet temperature fl uctuations with QuickMind are
limited to 4.3 °C as opposed to 7.54°C if the traditional adjust-
ment system were used, without even ensuring an acceptable
minimum compressor start time.
Variation output temperature
Variazione temperatura in uscita
Not acceptable minimum starting time compressors
Tempo minimo di accensione compressore non accettabile
3,68
3.52
3.52
3.52
3.5
3.3
3.2
3.1
4.5
5.5
6.5
7.5
NECS_ME_0152_1604_201004_GB
3
3.52
3.52
3.52
3
3
3
8.5
9.5
10.5
11
HFC R410A

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