Liebert 104 165 User Manual

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 tem-

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

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

tion. Use copies of 6.2.2 - Maintenance Inspection Checklist for each of these inspections.
If performance or operation problems are detected at anytime, refer to Table 9 - Troubleshooting 

for required action.

Risk of electric shock. Can cause injury or death.
Disconnect all local and remote electric power supplies before working in the unit. Use 

voltmeter to make sure power is turned Off before making any electrical connections.
Unit contains lethal voltage in some circuits. 
Only properly trained and qualified personnel may perform repair, maintenance and cleaning 

operations.
The fans may start unexpectedly. Disconnect power supply before working on unit. Line side 

of factory disconnect remains energized when disconnect is off. Use a voltmeter to make sure 

power is turned off before checking any electrical connections or functions.

NOTE
When ordering replacement parts for equipment, it is necessary to specify unit model number,