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Liebert
®
MC - UM - 10019237MAN_ENG - 31.03.2022
3. Intended Use
The Liebert
®
MC microchannel heat exchanger is a range of remote air-cooled condensers designed to be coupled with Liebert
®
air
conditioning units.
The Liebert
®
MC condensers are equipped either with EC axial fans.
The single system has a set of discharge/liquid pipe to match the single refrigeration system of indoor unit.
3.1 Functional Limits
Refrigerant This unit is designed for use with R410 A (group 2, not dangerous according to PED Directive).
WARNING
Risk of components failure or breakage.
Do not use other refrigerants.
Contact the manufacturer in case of doubt.
Performance
Nominal heat rejection capacity: See 6.0 Tecnical Data
MAX working pressure: 45 barg
Electrical
system
requirements
Voltage and Frequency Limits:
MC with EC Fan 3Ph
380V-480V ± 10%
50-60Hz 0,99 to 1,01 of nominal frequency continuosly
0,98 to 1,02 short time
Protection level: Electrical control box: IP55, Unit body: IPX5
WARNING
Risk of components failure or breakage.
Do not use dierent voltage.
Contact the manufacturer in case of doubt.
3.2 Operating environment
This unit is designed for outdoor installation, with the following ambient conditions:
Outdoor
ambient
temperature
-30 °C – +48 °C with “Controlled by Indoor Unit”
Outdoor
ambient
humidity
5% – 95%
Ambient
Do not use in explosive, acid or anyway aggressive atmosphere.
In case of installation near the sea or other particularly atmosphere conditions consider to order the Epoxy
coating.
Altitude
≤1000 m
Derating is required if the altitude exceeds 1000 m
3.3 Space Limits
Overall unit
dimensions
Provide enough free space to place the unit. See Annex II – Dimensions and Weight
Clearance
Keep a free space around the unit as explained in 8.4 Space Requirements.
NOTICE
The unit does not operate correctly if placed too close to walls or other obstacles.
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