Carrier 48TC*D08 appendix Routine Cleaning of Novation Condenser Coil Surfaces

Routine Cleaning of NOVATION Condenser Coil Surfaces

To clean the NOVATION condenser coil, chemicals are NOT to be used; only water is approved as the cleaning solution. Only clean potable water is authorized for cleaning NOVATION condensers. Carefully remove any foreign objects or debris attached to the coil face or trapped within the mounting frame and brackets. Using a high pressure water sprayer, purge any soap or industial cleaners from hose and/or dilution tank prior to wetting the coil.

Clean condenser face by spraying the coil core steadily and uniformly from top to bottom, directing the spray straight into or toward the coil face. Do not exceed 900 psig or a 45 degree angle; nozzle must be at least 12 in. (30 cm) from the coil face. Reduce pressure and use caution to prevent damage to air centers (fins). Do not fracture the braze between air centers and refrigerant tubes. Allow water to drain from the coil core and check for refrigerant leaks prior to start-up.

NOTE: Please see the NOVATION Condenser Service section for specific information on the coil.

!CAUTION

PERSONAL INJURY HAZARD

Failure to follow this caution may result in personal injury or equipment damage.

Chemical cleaning should NOT be used on the aluminum NOVATION condenser. Damage to the coil may occur. Only approved cleaning is recommended.

Routine Cleaning of Evaporator Coil Sufaces

Monthly cleaning with Totaline® environmentally sound coil cleaner is essential to extend the life of coils. This cleaner is available from Carrier Replacement parts division as part number P902-0301 for one gallon container, and part number P902-0305 for a 5 gallon container. It is recommended that all round tube coil cleaner as described below. Coil cleaning should be part of the unit’s regularly scheduled maintenance procedures to ensure long life of the coil. Failure to clean the coils may result in reduced durability in the environment.

Avoid the use of S coil brighteners

S acid cleaning prior to painting S high pressure washers

S poor quality water for cleaning

Totaline environmentally sound coil cleaner is non-flammable, hypoallergenic, non-bacterial, and a USDA accepted biodegradable agent that will not harm 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.

Totaline Environmentally Sound Coil Cleaner Application Equipment

S 2-1/2 gallon garden sprayer

S water rinse with low velocity spray nozzle

!CAUTION

PERSONAL INJURY HAZARD

Failure to follow this caution may result in corrosion and damage to the unit.

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 as described above.

!CAUTION

PERSONAL INJURY HAZARD

Failure to follow this caution may result in reduced unit performance.

High velocity water from a pressure washer, garden hose, or compressed air should never be used to clean a coil. The force of the wter or air jet will bend the fin edges and icrease airside pressure drop.

Totaline Environmentally Sound Coil Cleaner application Instructions

1.Proper eye protection such as safety glasses is recom- mended during mixing and application.

2.Remove all surface loaded fibers and dirt with a vacu- um cleaner as described above.

3.Thoroughly wet finned surfaces with clean water and a low velocity garden hose, being carefull not to bend fins.

4.Mix Totaline environmentally sound coil cleaner in a 2 1/2 gallon garden spryer according to the instruc- tions included with the cleaner. The optimum solution temperature is 100°F (38°C).

NOTE: Do NOT USE water in excess of 130°F (54°C), as the enzymatic activity will be destroyed.

1.Thoroughly apply Totaline® environmentally sound coil cleaner solution to all coil surfaces including finned area, tube sheets and coil headers.

2.Hold garden sprayer nozzle close to finned areas and apply cleaner with a vertical, up-and-down motion. Avoid spraying in horizontal pattern to minimize po- tential for fin damage.

3.Ensure cleaner thoroughly penetrates deep into finned areas.

4.Interior and exterior finned areas must be thoroughly cleaned.

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