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HVAC and Plumbing Distributor
Anthony Coker

Anthony Coker

Technical Services Manager
North Georgia District

Totaline Slime Prevention & Removal

TIC2021-0006 states that a slime has been detected in condensate lines, traps, drains and pans. From TIC: “The slime is what is called a biofilm and it is a natural defense mechanism of many microorganisms or bacteria. The slime forms around bacteria and acts as a protective armor for the bacteria. Nutrients and moisture can pass through the biofilm but many chemicals that can harm the bacteria have more difficulty passing through the biofilm. Air Conditioning coils cool the air passing over it and dehumidify the air creating condensate. Airborne bacteria can collide with condensate droplets and become entrapped inside of the droplet. The droplet can then transport the bacteria through the entire condensate management system. Bacteria will accumulate in any area that does not dry out and has very slow-moving condensate.”

It also says “The ideal habitat needs to be absent of extreme temperature swings, UV light or harsh disinfectants. A consistent supply of moisture ensures that the bacteria will not dry out and die. These condensate management systems include all field installed piping are not unique to Carrier, and thus can be considered an industry wide issue.” There is not a solution at the moment to fix this but it is in the works.

Further testing shows that UV lights reduce growth in close proximity. However, when the light is out of sight, the heat from the UV light makes it grow faster. Also, using “antimicrobial impregnated materials have limited effect on the rate of microbe growth because either the antimicrobial material leaches out of the system and becomes ineffective, or a layer of dead bacteria forms on the surface protecting future bacteria growth.” They ask you not to use bleach because it breaks down some components and becomes neutralized as quick as it attacks the biofilm.

A combination of a cleaning method below along with regular monitoring for system blockages or backups will be needed. Each application will have a different amount of time required to block the drain lines, but the methods below will help minimize regrowth rates of the biofilm.

totaline cooling coil treatment

Carrier’s Recommended cleaning method:

  • Remove as much water and biofilm as possible from coil and pan with vacuum.
  • Flush with large quantities of fast-moving water.
  • Optional – Use one of the cleaning chemicals listed below in order to delay regrowth.

Directions for completely blocked drainage systems with accessible drain terminations:

  • Vacuum out any slime located in the drain pan or on the fin surface.
  • Optional – Pour 2 quarts of Totaline® Cooling Coil Treatment P902-1101 and let sit for 10 minutes.
  • Fill drain pan with clean water.
  • Attach vacuum hose to outlet of the drain termination and vacuum all liquids out of drain pan.
  • Flush system with either 5 gallons of water or with a hose. For maximum effectiveness when using a bucket, be sure to fill drain pan as much as possible without overflowing.

Directions for completely blocked drainage systems without accessible drain lines:

  • Vacuum out any slime located in the drain pan or on the fin surface.
  • Optional – Pour 2 quarts of Totaline® Cooling Coil Treatment P902-1101 and let sit for 10 minutes.
  • Insert a hose to the inlet of the drainage system in the drain pan and turn on faucet. Allow system to build pressure to dislodge blockage and then allow ample water to flow once blockage is removed.
  • If blockage does not come free before drain pan fills with water, remove hose, run a long, small wire brush through the drainage system to mechanically dislodge the blockage and then repeat previous step.

Directions for drainage systems that have been partially blocked:

  • Vacuum out any slime located in the drain pan or on the fin surface.
  • Flush system with either 5 gallons of water or with a hose. For maximum effectiveness when using a bucket, be sure to fill drain pan as much as possible without overflowing.
  • Optional – Use Totaline® Cooling Coil Treatment P902-1101, add slowly allowing chemical to interact with biofilm in drainage system and then flush with large quantities of water.

Directions for a continuous disinfectant method between preventative maintenance:

  • Use Totaline® Condensate Pan Strip P902-38003 through P902-38007 based on size of the cooling system.
  • Place close to the drain pan outlet. Testing has shown to delay the growth of biofilm downstream of the pan strip.
  • This product is currently available in the following states: AL, AR, CO, CT, FL, HI, LA, MA, MD, ME, MS, NC, NH, NJ, NY, OK, PA, RI, SC, TN, TX, VA, WV. Certifications for additional states are currently being pursued. 
  • Strips will need to be replaced and a new strip inserted on a regular PM schedule.

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Alabama Locations

Anniston (256) 241-3026 105 E D St, Anniston, AL 36201
Auburn (334) 734-8011 2295 1st Ave, Opelika, AL 36801
Birmingham (205) 250-7714 516 31st St N, Birmingham, AL 35203
Dothan (334) 836-1035 205 Wedgewood Dr, Dothan, AL 36303
Gulf Shores (251) 968-2660 820 Commerce Dr, Gulf Shores, AL 36542
Huntsville (256) 859-2691 391 Nick Fitcheard Rd NW, Huntsville, AL 35806
Loxley (251) 964-2707 30020 Co Rd 49, Loxley, AL 36551
Mobile (251) 476-2220 5522 W Commerce Blvd West, Mobile, AL 36619
Montgomery (334) 262-4855 861 Plantation Way, Montgomery, AL 36117
Muscle Shoals (256) 383-6904 107 Commerce St, Muscle Shoals, AL 35661

Georgia Locations

Albany(229) 432-5254205 Baldwin Dr, Albany, GA 31707
Athens(706) 548-2563105 Whitetail Way, Bogart, GA 30622
Atlanta(404) 875-77551290 Tacoma Dr NW, Atlanta, GA 30318
Augusta(706) 651-19503618 Wrightsboro Rd, Augusta, GA 30909
Brunswick(912) 265-5193275 Rose Dr, Brunswick, GA 31520
Columbus(706) 322-38706201 W Hamilton Park Rd, Columbus, GA 31909
Conyers(770) 918-9132335 Gees Mill Business Pkwy NE, Conyers, GA 30013
Forest Park(404) 361-24745158-C Kennedy Rd, Forest Park, GA 30297
Gainesville(770) 297-93352472 Hilton Dr, Gainesville, GA 30501
Lawrenceville(678) 442-10602111 Cedars Rd SE, Lawrenceville, GA 30043
Lithia Springs(770) 948-3451320 Thornton Rd #106, Lithia Springs, GA 30122
Macon(478) 474-85445527 Thomaston Rd, Macon, GA 31220
Marietta(770) 426-05511060 Triad Ct, Marietta, GA 30062
Newnan(770) 239-210570 Enterprise Ct, Newnan, GA 30265
Peachtree Corners(770) 239-21006675 Jones Mill Ct, Peachtree Corners, GA 30092
Savannah(912) 232-1228103 Central Jct Blvd, Savannah, GA 31405
Statesboro(912) 764-8841126 W Parrish St, Statesboro, GA 30458
Valdosta(229) 245-8200363 Connell Rd, Valdosta, GA 31602
Warner Robins(478) 953-3727110 Byrd Way, Warner Robins, GA 31088

South Carolina Locations

Hilton Head(843) 689-34043715, 21 Hunter Rd, Hilton Head Island, SC 29926

Florida Locations

Fort Walton Beach(850) 244-201776 Beal Pkwy SW, Fort Walton Beach, FL 32548
Panama City(850) 913-05853012 Lisenby Ave, Panama City, FL 32405
Pensacola(850) 438-10054405 N. Palafox Street, Pensacola FL 32505

Mississippi Locations

Hattiesburg(601) 579-96701851 Lincoln Rd, Hattiesburg, MS 39402
Ocean Springs(228) 497-5090Sunplex Industrial Park, 5717 Suntec Drive, Ocean Springs, MS 39564

Commercial Sales

Norcross – North Georgia Hub
(800) 282-4911

Birmingham – North Alabama Hub
(205) 250-7714

Macon – Southwest Hub
(800) 342-9250

Loxley – Gulf Coast Hub
(800) 239-7419

Savannah – Southeast Hub
(800) 822-7617

Commercial Parts

 CompanyWeb AddressDescription
Airzonewww.airzoneinc.comCustom and Underfloor Air Handlers
Aladdin Metal Productswww.aladdinmetalproducts.comCurb Adapters and Roof Curbs
Aprilairewww.aprilaire.comIndoor Air Quality Products
Autaniwww.autani.comBuilding Automation and Controls
Bardwww.bardhvac.comHeat Pumps,Gas/Electric, and Wall Mounted Air Conditioners
Bryantwww.bryant.comCommercial, Industrial, Residential Heating & A/C Products and Controls
Carrierwww.commercial.carrier.comCommercial and Residential Heating & A/C Products
Data Airewww.dataaire.comPrecision Air Control for Data Processing Centers
 DXairwww.dxair.comPool dehumidification systems
 First Companywww.firstco.comFan Coil Units
Global Plasma Solutionswww.gpshvac.comAir Purification and Bi-Polar Ionization
 Greewww.greeusa.comPTACs
 Hayes Fluid Controlswww.haysfluidcontrols.comHose Kits and Control Valves
 iAirewww.myiaire.comCommercial Air Purification using ionization with energy savings
 IslandAirewww.islandaire.comPTACs, Vertical Units, Water Source Heat Pumps
 i-Vuwww.commercial.carrier.comBuilding Automation and Controls
 Magic Airewww.magicaire.comFan Coil Units
 Micro Metlwww.micrometl.comRoof Curbs, RTU Accessories, & ERVs
 Modinewww.modine.comGas-Fired Unit Heaters, Duct, Furnaces, Hot Water Cabinet Unit Heaters, Makeup Air, and Dedicated Outdoor Air Systems
 Network Thermostatwww.networkthermostat.comInternet Thermostats, Wifi Themostats, Ethernet Thermostats
Paynewww.payne.comResidential Heating & A/C Products
Rawal Deviceswww.rawal.comContinuous Capacity Modulation and Dehumidification for DX Systems
Renew Airewww.renewaire.comFixed-Plate ERVs
Totalinewww.totaline.comCompressors, Parts, and Supplies
United CoolAirwww.unitedcoolair.comModular All-Indoor HVAC Systems
 Warren Technologywww.warrenhvac.comElectric Heaters
 Wilo Pumpswww.wilo-usa.comPump Systems for HVAC and Water Supply and Sewage