Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW Benutzerhandbuch
Piping
Liebert
®
MC
™
26
• Consult factory if piping run exceeds 300 feet (91m) actual length, or 450 feet (137m) equivalent
length on units installed with Liebert EconoPhase units.
• Keep piping clean and dry, especially on units with POE oil (R407C, R410A or R22 refrigerant).
• Avoid piping runs through noise-sensitive areas.
• Do not run piping directly in front of indoor unit discharge airstream.
• Refrigerant oil – do not mix oil types or viscosities. Consult indoor unit for refrigerant type and oil
• Avoid piping runs through noise-sensitive areas.
• Do not run piping directly in front of indoor unit discharge airstream.
• Refrigerant oil – do not mix oil types or viscosities. Consult indoor unit for refrigerant type and oil
requirements.
NOTE
Failure to use compressor oils recommended by compressor manufacturer will void compressor
Failure to use compressor oils recommended by compressor manufacturer will void compressor
warranty. Consult Emerson or the compressor manufacturer for further recommendations or if
you have questions about compressor oils.
Refer to ASHRAE Refrigeration Handbook for general good practices for refrigeration piping.
Refer to ASHRAE Refrigeration Handbook for general good practices for refrigeration piping.
The Liebert indoor cooling unit has a factory-installed high-pressure safety switch in the high
side refrigerant circuit. A pressure relief valve is provided with Liebert Lee-Temp
™
receivers. A
fusible plug is factory installed in the Liebert DSE
™
receivers. Consult local building codes to
determine if condensers without receivers will require field-provided pressure relief devices. A
fusible plug kit is available for field installation.