These items should be part of a routine maintenance program, to be checked every month or two, until a specific schedule for each can be identified for this installation:
QUARTERLY INSPECTION (AND 30 DAYS AFTER INITIAL START)
Recommended Outdoor Coil Maintenance and Cleaning
Routine cleaning of coil surfaces is essential to maintain proper operation of the unit. Elimination of contamination and removal of harmful residues will greatly increase the life of the coil and extend the life of the unit. The following maintenance and cleaning procedures are recommended as part of the routine maintenance activities to extend the life of the coil.
REMOVE SURFACE LOADED FIBERS
Surface loaded fibers or dirt should be removed with a vacuum cleaner. If a vacuum cleaner is not available, a soft non-metallic bristle brush may be used.
In either case, the tool should be applied in the direction of the fins. Coil surfaces can be easily damaged (fin edges can be easily bent over and damage to the coating of a protected coil) if the tool is applied across the fins.
NOTE: Use of a water stream, such as a garden hose, against a surface loaded coil will drive the fibers and dirt into the coil. This will make cleaning efforts more difficult. Surface loaded fibers must be completely removed prior to using low velocity clean water rinse.
PERIODIC CLEAN WATER RINSE
A periodic clean water rinse is very beneficial for coils that are applied in coastal or industrial environments. However, it is very important that the water rinse is made with a very low velocity water stream to avoid damaging the fin edges. Monthly cleaning as described below is recommended.
Ensure clearances are in accordance with local installation codes, the requirements of the gas supplier and the manufacturer's installation Instructions.
ROUTINE CLEANING OF INDOOR COIL SURFACES
Periodic cleaning with Totaline® environmentally sound coil cleaner is essential to extend the life of coils. This cleaner is available from Replacement Components Division as part number P902-0301 for a one gallon (3.8L) container, and part number P902-0305 for a 5 gallon (19L) container. It is recommended that all coils, including standard aluminum, pre-coated, copper/copper or e-coated coils be cleaned with the Totaline environmentally sound coil cleaner as described below. Coil cleaning should be part o
Avoid use of:
Totaline environmentally sound coil cleaner is nonflammable, hypoallergenic, non-bacterial, and a USDA accepted biodegradable agent that will not harm the coil or surrounding components such as electrical wiring, painted metal surfaces, or insulation. Use of non-recommended coil cleaners is strongly discouraged since coil and unit durability could be affected.
CLEAN COIL AS FOLLOWS:
TOTALINE ENVIRONMENTALLY SOUND COIL CLEANER APPLICATION EQUIPMENT
UNIT DAMAGE HAZARD
Failure to follow this caution may result in reduced unit performance or unit shutdown.
High velocity water from a pressure washer, garden hose, or compressed air should never be used to clean a coil. The force of the water or air jet will bend the fin edges and increase airside pressure drop.
UNIT DAMAGE HAZARD
Failure to follow this caution may result in accelerated corrosion of unit parts.
Harsh chemicals, household bleach or acid or basic cleaners should not be used to clean outdoor or indoor coils of any kind. These cleaners can be very difficult to rinse out of the coil and can accelerate corrosion at the fin/tube interface where dissimilar materials are in contact. If there is dirt below the surface of the coil, use the Totaline environmentally sound coil cleaner.
TOTALINE ENVIRONMENTALLY SOUND COIL CLEANER APPLICATION INSTRUCTIONS
NOTE: DO NOT USE water in excess of 130° F (54° C), as the enzymatic activity will be destroyed.
CLEANING THE INDOOR COIL
Source: Carrier (www.shareddocs.com)