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11.1 General Condenser Maintenance
Record the unit model number, serial number and voltage. Please record those numbers in the spaces
below.
•
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 Preventive Maintenance Checklist for each of these inspections.
If performance or operation problem are detected at anytime, refer to Premium Efficiency Condenser
Alarm Codes for required action.
11.2 Condenser Cleaning
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. If you delay
cleaning until heavy build-up occurs, head-pressure problems with the evaporator units can develop.
11.2.1 When to Clean the Condenser Coil
Normal conditions typically dictate cleaning twice a year, in 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, we recommend a visual inspection of the coil to monitor conditions.
11.2.2 What to Use to Clean the Condenser Coil
NOTICE
Risk of improper cleaning agent selection, including non-base paint solvents. Can cause
building and equipment damage and loss of refrigerant charge.
Using acid-based or sodium hydroxide-based cleaners can damage the condenser coil and
cause a loss of charge. This could cause equipment damage as well as damage to the
surrounding structure.
The best overall condenser coil cleaner is plain water. If the coil is maintained and cleaned at regular
intervals, water is sufficient to remove dirt and debris from the fins. Heavy build up on the exterior of the
fins can be removed with a brush. Water pressure from a garden hose and sprayer usually works well. If a
pressure washer is used, make sure that the equipment is set to a lower pressure setting and that the
nozzle is set to the fan spray, not stream. Otherwise, damage to the fins could result. If a cleaner is
required, we recommend using a neutral cleaner, neither acidic nor base. Acid-type cleaners can damage
the coil fins and surrounding areas. Many sites do not allow the use of acidic cleaners for environmental
reasons.
Vertiv | Liebert® MCV™ Installer/User Guide |
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