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CSRA-SVX01A-EN
Maintenance
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 manufacturers 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, a soft brush and sprayer (i.e., either a garden
pump-up type, or a high-pressure sprayer) must be used. In addition, a high-
quality detergent is required; suggested brands include "SPREX A.C.",
"OAKITE 161", "OAKITE 166", and "COILOX".
Note: If the detergent is strongly alkaline (i.e., has a pH value greater than
8.5) after mixing, an inhibitor must be added.
Cleaning Procedure:
1. Disconnect power to the unit.
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.
Refer to unit schematics to check the number of disconnects required to de-
energize the unit.
2. Remove enough panels and components from the unit to gain access to
the condenser coils.
3. Protect all electrical devices such as motors and controls from dust and
water.
4. Straighten coil fins with a fin rake, if necessary.
5. Use a soft brush to remove loose dirt and debris from both sides of the
coil.
6. Mix the detergent with water according to the manufacturer's instructions.
To improve the cleansing ability of the solution, heat it to a maximum of
150° F.
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