Emerson Liebert MC Microchannel Outdoor Condenser 28 - 220kW 사용자 설명서

• Model Number ________________
• Serial Number ________________
• Voltage / Phase / Frequency ________________

Periodic attention is necessary for continued satisfactory operation of your unit. Restricted air flow 

through the condenser coil, reduced airflow from non-functioning fans and low refrigerant system 

charge levels will reduce the operating efficiency of the unit and can result in high condensing 

temperatures and loss of cooling. In winter, do not permit snow to accumulate around the sides or 

underneath the condenser coil.
Monthly and semi-annual inspections and maintenance are recommended for proper system 

operation. Use copies of 9.4.3 - Maintenance Inspection Checklist for each of these inspections.
If performance or operation problem are detected at anytime, refer to 8.2 - Premium Efficiency 

Condenser Alarm Codes for required action.

Keeping the outdoor condenser coils clean is an important factor in maintaining peak efficiency, 

reliability and long life of the equipment. The unit will operate more efficiently with frequent 

cleanings. Delaying cleaning until heavy buildup occurs may create head pressure problems with the 

evaporator units.

Normal conditions typically dictate cleaning twice a year, spring and fall. On-site or area conditions 

such as cottonwood trees, construction, etc., can increase cleaning frequency. On your standard 

monthly preventive maintenance schedule, Emerson recommends a visual inspection of the coil to 

monitor conditions.

Risk of electrical shock. Can cause injury or death.
Unit contains potentially lethal voltage in some circuits.
Disconnect all local and remote electric power supplies and wait 10 minutes before working in 

the unit. The line side of the unit disconnect switch remains energized when the switch is in 

the Off position. Use a voltmeter to make sure power is turned Off before making any 

electrical connections.
Only properly trained and qualified personnel may perform repair, maintenance, and 

cleaning operations.

Risk of high-speed, rotating fan blades. Can cause injury or death.
The fan blades can start rotating without warning any time during a cooling cycle or after 

power is restored after a power failure. Disconnect all local and remote electrical power 

supplies to the unit, wait 10 minutes and verify with a voltmeter that the power is Off and 

that all fan blades have stopped rotating before working on or near the fans.