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HVAC and Plumbing Distributor
Picture of Anthony Coker

Anthony Coker

Technical Services Manager
North Georgia District

The Unknown Soldier

Wondering why the VFD is called the Unknown Soldier? It is because it does a lot of work and goes unrecognized. It is one of those things that does its work behind the scenes and doesn’t get recognized until it stops working. Well we are going to give the recognition to this one and maybe by doing so it will have a long and productive life!

VFD

Maintenance of the VFD is critical and can be detrimental when not maintained at specified intervals. The dust can cause overheating and possible damage to the VFD as well causing a shortened life span to the device.

All this information can be found on HVAC Partners under VFD-08SI

VFD Maintenance

If installed in an appropriate environment, the VFD requires very little maintenance.

Table 1 lists the routine maintenance intervals recommended by Carrier

Table 1 - Maintenance Intervals
Table 1 - Maintenance Intervals

Heat Sink Cleaning

The heat sink fins accumulate dust from the cooling air. Check the heat sink annually and if the dust is heaver than usual increase the frequently of cleaning.


Use the following procedure to clean the heat sink on the (AHC550 VFD)
1. Turn off power and (lock out/tag out) unit for your safety and others.
2. To remove the drive cover. Remove the captive screw. (See Figure 1)

Figure 1 – Remove Cover on the (ACH550 VFD)
Figure 1 – Remove Cover on the (ACH550 VFD)

3. Press together the retaining clips on the top cover and lift. (See Figure 2)

Figure 2 – Remove Cover on the (ACH550 VFD)
Figure 2 – Remove Cover on the (ACH550 VFD)

4. Blow clean compressed air (not humid) or dry nitrogen from bottom to top while simultaneously using a vacuum cleaner at the air outlet to recover the dust.

5. Replace the cooling fan.

6. Replace the drive cover.

7. Restore power.

Use the following procedure to clean the heat sink on (ACS320 VFD)

1. Turn off power and (lock out/tag out) unit.
2. To release the top cover, insert a small straight blade screwdriver into the slot and press it in to release. (See Figure 3)

Figure 3– Remove Cover on the (ACS320 VFD)
Figure 3– Remove Cover on the (ACS320 VFD)

3. Blow clean compressed air (not humid air) or dry nitrogen from top of ACS320 while simultaneously using a vacuum cleaner at the base to recover the dust.

4. Replace the top cover.

5. Restore power.

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Our Locations

Alabama
Georgia
South Carolina
Florida
Mississippi

© 1939–2023 Mingledorff's Inc. All rights reserved.

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
Tuscaloosa (205) 632-7176 5030 Old Montgomery Hwy, Tuscaloosa, AL 35405

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

Hardeeville (843) 867-2143 132 Red Oaks Ln, Ridgeland, SC 29936
Hilton Head (843) 689-3404 3715, 21 Hunter Rd, Hilton Head Island, SC 29926

Florida Locations

Fort Walton Beach (850) 244-2017 76 Beal Pkwy SW, Fort Walton Beach, FL 32548
Panama City (850) 913-0585 800 W 13th St, Panama City, FL 32401
Pensacola (850) 438-1005 4405 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

[email protected]
(844) 99-CHILL

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