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Nu-Calgon Application Bulletin 3-125
Air-Cooled Equipment and Filter Cleaning
#1 Industry
Coil Cleaner
CONDENSER COIL CLEANERS
SPECIALTY AEROSOLS
How to Clean Air-Cooled Equipment and Filters.
Reduce service calls and increase the efficiency of air-cooled condensers,
permanent air filters, evaporator coils, window units and other finned
cooling/heating coils or equipment by selecting one of Nu-Calgon’s
quality coil cleaners. They are based on nearly 60 years of experience
and technical background in coil cleaning.
Greasy dirt and dust in the air can collect on air conditioning and
refrigeration coils. If these finned heating or cooling coils are left
uncleaned, heat transfer will be reduced. In turn, compressors will have
to work much harder, operating costs go up and valuable equipment
could break down when it is needed most. For example, for every 2°F
rise in condensing temperature that is caused by dirty coils, efficiency
is reduced by 1% while power consumption is increased by 1%… a
staggering price to pay for dirty coils.
In addition, clogged and dirty permanent filters restrict air flow and do
not filter air, allowing dirt to contaminate rooms and stain walls around air
ducts. And dirty electronic air cleaners, fouled with pollen, nicotine and
other pollutants prevent them from adequately cleaning the air.
Regular cleaning with Nu-Calgon products protects equipment and helps
maintain peak operating efficiency.
A LOOK AT THE PRODUCTS
CalClean
A heavy-duty liquid alkaline detergent for cleaning evaporator coils, air
cooled condenser coils, metal filters, fan blades and other surfaces soiled
with greasy dust and dirt. Consult Bulletin 3-33.
20 oz. aerosol 4081-75
1 gallon bottle 4135-08
2.5 gallon pail 4135-06
55 gallon drum 4135-01
®
EVAPORATOR COIL CLEANERS
SPECIALTY CLEANERS
Special HD CalClean
The best cleaner available. Specifically formulated to remove tobacco tars
from electronic air cleaners as well as the most stubborn deposits from
air-cooled condensers and evaporator coils. Consult Bulletin 3-60.
1 gallon bottle 4143-08
2.5 gallon pail 4143-06
55 gallon drum 4143-01
Evap Pow’r
A revolutionary “no-rinse” product formulated specifically for indoor
cleaning of evaporator coils. It is metal safe and therefore ideal for
“no-rinse” applications. Evap Pow’r-C is the concentrate. Use ratio is 3:1.
1 gallon bottle 4168-08
2.5 gallon pail 4168-05
Nu-Brite
The #1 coil cleaner in the HVACR market. It foams and brightens, and
it is an equally effective yet safer alternative to acids. It produces a high
volume of foam and cleans more effectively than acids. Consult 3-31.
1 gallon bottle 4291-08
2.5 gallon bottle 4291-05
55 gallon drum 4291-01
18 oz. Aerosol 4291-18
®
®
®
2008 Altom Ct. • St. Louis, MO 63146 • 800-554-5499 • www.nucalgon.com
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Alka-Brite® Plus
A non-acid, alkaline-based product for brightening and cleaning
air cooled condensers. It quickly penetrates and removes
greasy soils and oxidation. Its foaming helps lift greasy soils out
of the coil. Consult 3-35.
1 gallon bottle 4120-08
Foam Brite
®
Described as the ultimate foaming cleaner, Foam-Brite is the
first in a new generation of condenser coil cleaners. It provides
for excellent cleaning and brightening and at the same time
provides for tremendous foaming to push dirt and grime out of
the coil. Consult 3-32PF.
1 gallon bottle 4178-08
2.5 gallon bottle 4178-05
55 gallon drum 4178-01
Tri-Pow’r® HD
An outstanding general purpose coil cleaner that provides
detergency, degreasing and deodorizing capabilities. Its
positive emulsion technology is very effective versus grease
and grime. It is non-acid and non-toxic. Consult 3-935.
1 gallon bottle 4371-88
Cal-Brite
®
Cal-Brite is a low-pH product for cleaning evaporator coils, aircooled condensers and other finned cooling and heating coils.
It is based upon glycolic acid and DuPont’s sur factant Merpol®.
Safe for use indoors as well as outdoors. Consult 3-34.
1 gallon bottle 4133-08
Green Clean
®
A pleasantly scented, all-purpose cleaner designed for the
rapid removal of grease and other heavy soils. It can be used
right out of the bottle or diluted for milder jobs. Consult 3-28.
1 quart spray bottle 4186-24
1 gallon bottle 4186-08
Evap Foam® No Rinse
A high performance detergent, specifically formulated into a
foaming, non-rinse product. Evap Foam is ideal for use on
cooling or evaporator coils, and it may be sprayed either right
side up or upside down. Consult 3-97.
18 oz. aerosol 4171-75
Evap-Fresh
®
Disinfectant Coil Cleaner
A ready-to-use, “no rinse” cleaner and disinfectant for evaporator
coils. Effectively cleans as well as kills mold and bacteria. This
one-step disinfectant cleaner is perfect for air conditioners,
commercial air handling units, HVAC cooling coils, refrigeration
equipment and evaporator coils. EPA registered specifically for
use on HVAC equipment. Consult 3-38F.
1 gallon bottle 4166-08
18 oz. aerosol can 4166-75
Nu-Blast
®
A “no rinse required” condenser coil cleaner in a convenient
aerosol package. Double action of high pressure blast and
solvent cleaning restores design efficiency of condenser coils.
Pleasant odor, non-flammable and non-conductive. Consult
3-929.
18 oz. aerosol can 4290-75
Cal-Blast
®
Cal-Blast is a no rinse condenser cleaner that will powerfully
separate undesirable materials from the surface, offering
maximum cleaning of finned coils. It’s a high performance
aerosol with excellent solvency and blasting spray.
20 ounce can 4132-20
TriClean 2x™
The new way to clean a condenser coil. Simply connect to
hose, clean, and rinse. Metal-safe, designed for rapid emulsion
of soils from the coil. Restores efficiency and is ideal for painted
fin and microchannel coils. Consult 12-S76.
1 quart spray bottle 4372-24
Condenser Coils
Evaporator Coils
Permanent Filters
Electronic Air Filters
Small Condenser Coils
Small Evaporator Coils
Fan Blades, Motors, Etc.
Microchannel Coils
Greas y Dirt & Oil
Cooking Grease
Lint, D ust, Dirt & Gr ime
Tobacco Tars
Oxide (Corrosion) Deposits
Cottonwood/ Bugs
Pro duct Ty pe Alkaline Alkaline Alkaline A lkaline Alkaline Alkaline Alkaline Acidic Alkaline Alkaline A lkaline Alkaline Alkaline Alkaline Alkaline Solven t Solvent Alkaline
Foaming
Brightening
Degreasing
Disinfectant
Non-Rinsing
Coil Protection
Biodegradable
USDA Authorized
EPA Registered
NSF Registered
AEROSOL
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4
4 4 4 4 4 4
4 4 4 4 4 4 4 4
4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4
4 4 4 4 4 4 4 4
NU-BRITE FOAM-BRITE ALK A-BRITE
4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 4 4 4 4 4 4 4
4 4 4 4 4 * 4 * 4 * 4 4 4 4
POW’R-C
* Dilution ratios for no rinse applications: Tri-Pow’r HD= 10:1, CalClean Special HD= 40:1, CalClean = 10:1
4 4 4 4 4 4 4 4 4 4 4 4 4
NO RIN SE
EVAP-FRESH
PLUS
4 4
4 4
NO RIN SE
AEROSOL
CAL-BRITE CALCLEAN
EQUIPMENT USED ON
FORMULATED TO REMOVE
FEATURES & BENEFITS
EVAP-FRESH
NO RIN SE
CALCLEAN
4 4
4 4 4 4 4 4 4 4 4
4
TRI-POW’R HDEVA P FOAM
CALCLEAN TRICLEAN 2XNU-BRITE
AEROSOL
NU-BLASTSPECIAL HD
C AL- BL AS TGREEN CLEAN EVAP-GREENCAL-GREEN
Protectant
4
CAL-SHIELDEVA P
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A LOOK AT THE EQUIPMENT
AIR-COOLED CONDENSERS
The primary goal in cleaning air-cooled condensers is to emulsify the greasy dirt and grime
so that it can be flushed away by rinsing. This restores designed heat transfer and air flow. A
good alkaline cleaner like CalClean is the choice, and the selection of Special HD CalClean
would be recommended if the soil or grime is particularly stubborn.
If foam during cleaning and brightened aluminum fins after cleaning are desired, select any
one of the Nu-Calgon “Brite” products (Nu-Brite, Alka-Brite Plus, Foam-Brite or Cal-Brite).
They will provide the cleaning of the CalClean products with the added features of foam
and brightening. If hydrofluoric acid based products were used before, select Nu-Brite,
Alka-Brite Plus or Foam-Brite. They are formulated to out-foam, out-brighten and out-clean
the HF-based products. For small condenser coils, or where rinsing is not possible, use
Aerosol Nu-Blast.
EVAPORATOR COILS
Typically, the desired goal is the same as in cleaning air-cooled condensers, removal of
greasy dirt and grime and designed capacities. If an acid based product is desired, where
some brightening and foaming is wanted, use Cal-Brite followed by a thorough rinsing. If
rinsing is not possible or not desirable, a product that combines “metal-safeness” without
rinsing is suggested so long as suitable humidity-condensation is anticipated. Use Evap
Pow’r-C in this application. Or, select the convenient aerosol, Evap-Foam No Rinse or
Evap-Fresh.
CalClean Tri Pow’r HD diluted 10:1 can also be used in no-rinse applications.
ELECTRONIC AIR FILTERS
When electronic air filters become coated with tobacco tars, gummy dust particles and
other stubborn deposits, they are difficult to clean. More importantly they lose their ability to
adequately remove these types of objectionable items from the air. And typically, wherever
electronic air filters are installed, the quality of the air is paramount.
Most alkaline cleaners don’t work because they simply cannot emulsify the stubborn
deposits such as tobacco tars. Special HD CalClean and Electronic Cell Cleaner are
specifically formulated to handle such a cleaning requirement. It contains an extra-strong
blend of surface-active agents and alkaline cleaners, designed especially for cleaning
electronic air filters. Special HD CalClean and Electronic Cell Cleaner easily out perform
ordinary detergents.
GENERAL CLEANING JOBS
CalClean, Tri-Pow’r and Green Clean can be used effectively in many instances where there
is a buildup of greasy dirt and grime or other heavy soils. These include permanent filters
as well as other soiled, dirty or greasy surfaces. Follow product instructions.
COIL PROTECTION
A product formulated with DuPont Teflon® surface protector. Utilizes the recognized ability
of Teflon to shield and protect finned cooling and heating coils.
Traditional cleaning of the coil with a coil cleaner removes most to all deposits, restoring
lost capacity as well as operating efficiencies. Unfortunately, the problem will return and
cleaning will again be required.
Use of Cal-Shield will allow the coil to operate longer periods between cleaning. Once Cal-
Shield is applied to the cleaned coil, it forms a protective shield of Teflon that helps the coil
resist the depositing of dirt and grime, moisture will “bead up” and run off. This enables
the coil to perform more efficiently for a longer period of time. If a coil is in an aggressive
environment, such as salt air and food coolers, the Teflon will extend the coil’s service life
in this corrosive environment. Consult Bulletin 3-36 for more details.
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Select the Right Sprayer for the Cleaning Job
No. 50P Poly Sprayer
The No. 50P Poly Sprayer is constructed
of high density translucent polyethylene.
The nozzle is adjustable and the flow rate
is controlled by a thumb lever. It comes
with a 7˝ polyethylene pump and has a
half-gallon (3 pint) working capacity.
Part Number: 4770 -0
Multi-Purpose Hand Sprayer
Twenty-four fluid ounce, transparent
bottle with positive action spray head.
Ideal for small jobs, such as window units,
water coolers, etc. Bottle is calibrated in
ounces and milliliters. Also, calibrated for
various use dilutions.
Part Number: 4768-W3
Coil Gun
A different approach to coil cleaning
- a “hose-end” sprayer that features 5
different mix ratio settings designed for
coil cleaners. Also incorporates a quick
disconnect capability. Utilizes a 2 quart
capacity bottle and includes a foam
wand.
Part Number: 47 74-0
®
No. 220CP Poly Sprayer
This sprayer is constr ucted of high
translucent polyethylene,
a molded funnel top, a 2 gallon working
capacity, reinforced
seals, and
Utilizes a 10˝ polypropylene pump and
an adjustable nozzle.
Part Number: 4771- 3
No. 200P Water Pressurizing
Sprayer
It is constructed of a high density
translucent polyethylene. It has a funnel
top for easy addition of chemical as well
as emptying. It has a 2 gallon working
capacity, and it comes equipped with
a 14˝ brass wand, brass shut-off,
adjustable brass nozzle and a “quickconnect” fitting for attaching water hose.
Part Number: 4771-2
3 foot hose, Buna
chemical-resistant wand.
density
incorporating
No. 300P Poly Sprayer
The No. 300P is constructed of high
density translucent polyethylene. It has a
funnel-top for easy addition of chemical
as well as emptying, and it has a 3.5 gallon
capacity (3 gallon working capacity). It
comes with a 10˝ polypropylene pump,
extension tube with adjustable nozzle
and five feet of vinyl hose.
Part Number: 4772-0
Cal-Shield® Poly Sprayer
The Cal-Shield Poly Sprayer is
constructed of high-density translucent
polyethylene. It has a funnel top for easy
addition of chemical as well as emptying
and has a one gallon working capacity.
It comes with a 10˝ polypropylene pump,
brass handle and extension tube with
adjustable nozzle, a wear-resistant hose
and a pressure relief valve. It is highly
recommended that this sprayer be
dedicated to Cal-Shield applications.
Part Number: 4770 -2
2008 Altom Ct. • St. Louis, MO 63146 • 800-554-5499 • www.nucalgon.com
Calgon is a licensed trade name • (1012) 3-125
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