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SXIH-SVX01C-EN
Maintenance
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Clean condenser fans.
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Clean and repaint any corroded surface.
Periodic Maintenance Procedures
This section describes specific maintenance procedures that must be preformed as a part of the
normal maintenance program for this unit. Be certain to disconnect electrical power to the unit
before performing these procedures.
Note:
The following coil cleaning procedures apply only to the outdoor condensers. Do not use
these procedures for the reheat or evaporator coils.
Cleaning the Condenser Coils
Clean the coil at least once each year or more frequently if located in a dirty environment, to help
maintain proper unit operating efficiency. High discharge pressures are a good indication that the
coil needs cleaning. Follow the detergent manufacturer instructions as closely as possible to avoid
potential damage to the coil.
WARNING
Hazardous Chemicals!
Coil cleaning agents can be either acidic or highly alkaline. Handle chemical carefully. Proper
handling should include goggles or face shield, chemical resistant gloves, boots, apron or suit as
required. For personal safety refer to the cleaning agent manufacturer’s Materials Safety Data
Sheet and follow all recommended safe handling practices. Failure to follow all safety
instructions could result in death or serious injury.
To clean the refrigerant coil, use a soft brush and sprayer, such as a garden pump up or high
pressure type. In addition, use a quality detergent; like "SPREX AC', " OAKITE 161" or "OAKITE 166"
and "COILOX."
Note:
If detergent is strongly alkaline (i.e. has a pH value greater that 8.5) after mixing, an
aluminum corrosion inhibitor must be added.
Coil Cleaning Procedure
WARNING
Hazardous Voltage!
Disconnect all electric power, including remote disconnects before servicing. Follow proper
lockout/tagout procedures to ensure the power can not be inadvertently energized. Failure to
disconnect power before servicing could result in death or serious injury.
1.
Disconnect power to the unit.
2. Remove panels from the unit to gain access to the coil.
3. Use a soft brush to remove loose dirt and debris form both sides of the coil.
4. Straighten coil fins with fin comb as required.
5. Mix the detergent with water according to the manufacturers instructions.
Observe all recommendations of the cleanser manufacturer. The coil cleanser manufacturer's
recommendations, warnings and cautions will at all times take precedence to these instructions.
1.
Place solution in the sprayer. Be sure to follow these guidelines if using a high-pressure sprayer:
a. Minimum nozzle spray angle is 15°.
b. Spray solution at a 90° angle to the coil face.
c. Keep sprayer nozzle at least six inches form the coil.
