Mchx Condenser Coil: Maintenance And Cleaning; Rtpf Condenser Coil: Maintenance And Cleaning - Carrier AquaForce B Series Controls, Start-Up, Operation, Service And Troubleshooting Instructions

MCHX Condenser Coil:
Maintenance and Cleaning
Routine cleaning of coil surfaces is essential to maintain proper
operation of the unit. Elimination of contamination and remov-
al of harmful residues will greatly increase the life of the coil
and extend the life of the unit. The following steps should be
taken to clean MCHX condenser coils.
CAUTION
Do not apply any chemical cleaners to MCHX condenser
coils. These cleaners can accelerate corrosion and damage
the coil.
1. Remove any foreign objects or debris attached to the coil
face or trapped within the mounting frame and brackets.
2. Put on personal protective equipment including safety glass-
es and/or face shield, waterproof clothing and gloves. Full
coverage clothing is recommended.
3. Start high pressure water sprayer and purge any soap or in-
dustrial cleaners from sprayer before cleaning condenser
coils. Only clean potable water is authorized for cleaning
condenser coils.
4. Clean condenser face by spraying the coil steady and uni-
formly from top to bottom while directing the spray straight
toward the coil. Do not exceed 900 psig (6205 kPa), 104°F
(40°C) water temperature, or 45 degree angle. The nozzle
must be at least 12 in. (304.8 mm) from the coil face. Reduce
pressure and use caution to prevent damage to air centers.
CAUTION
Excessive water pressure will fracture the braze between air
centers and refrigerant tubes.
RTPF Condenser Coil:
Maintenance and Cleaning
Routine cleaning of coil surfaces is essential to maintain proper
operation of the unit. Elimination of contamination and remov-
al 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 RTPF (round
tube plate fin) 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-metal-
lic 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 very low ve-
locity water stream to avoid damaging the fin edges. Monthly
cleaning as described below is recommended.
ROUTINE CLEANING OF RTPF COIL SURFACE
Routine cleaning with Totaline
cleaner is essential to extend the life of coils. This cleaner is
available from Carrier Replacement Parts division as part num-
ber P902-0301 for a one gallon container, and part number
environmentally balanced coil
®
P902-0305 for a five gallon container. It is recommended that
all coils, including the standard copper tube aluminum fin, pre-
coated fin, copper fin, or e-coated coils be cleaned with the To-
taline environmentally balanced coil cleaner as described be-
low. Coil cleaning should be part of the unit's regularly sched-
uled 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:
• coil brighteners
• acid cleaning prior to painting
• high pressure washers
• poor quality water for cleaning
Totaline environmentally balanced coil cleaner is non-flamma-
ble, hypoallergenic, nonbacterial, and a USDA accepted biode-
gradable agent that will not harm the coil or surrounding com-
ponents such as electrical wiring, painted metal surfaces, or in-
sulation. Use of non-recommended coil cleaners is strongly
discouraged since coil and unit durability could be affected.
Totaline Environmentally Balanced Coil Cleaner Application
Equipment
• 2 1 / gallon garden sprayer
2
• Water rinse with low velocity spray nozzle
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 bal-
anced coil cleaner as described above.
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 air-
side pressure drop. Reduced unit performance or nuisance unit
shutdown may occur.
Totaline Environmentally Balanced Coil Cleaner Application
Instructions
1. Proper eye protection such as safety glasses is recommended
during mixing and application.
2. Remove all surface loaded fibers and dirt with a vacuum
cleaner as described above.
3. Thoroughly wet finned surfaces with clean water and a low
velocity garden hose, being careful not to bend fins.
4. Mix Totaline environmentally balanced coil cleaner in a
2 1 / gallon garden sprayer according to the instructions
2
included with the cleaner. The optimum solution tempera-
ture is 100°F (37.8°C).
NOTE: Do NOT USE water in excess of 130°F (54.4°C), as the
enzymatic activity will be destroyed.
5. Thoroughly apply Totaline environmentally balanced coil
cleaner solution to all coil surfaces including finned area,
tube sheets and coil headers.
6. 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 potential for fin damage.
7. Ensure cleaner thoroughly penetrates deep into finned areas.
8. Interior and exterior finned areas must be thoroughly
cleaned.
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CAUTION
CAUTION