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• Replacement Coil Coating Process
• Complete Unit
Coating Process
• In-House Dip Coating
•
In-House Spray Coating For Coils
• Cabinet Coating
Replacement Coil Coating
Process
Replacement coils are carefully uncrated and inspected for
any shipping damage. Each coil is assigned an individual registration
number for tracking. The coil is then capped and then charged
with 50psi of nitrogen through the Schrader valve. The nitrogen
pressure is checked at each stage of the cleaning and coating
process to ensure the coils integrity is maintained. In addition
the nitrogen check the coil is quality assurance inspected
at each cleaning and coating step to ensure all procedures
have been performed in accordance with our established process
standards. Each step is documented in an assigned job log.
Coils are cleaned using a multi-step process. Bronz-Glow
formulated cleaners are employed to ensure the removal of
shop oils, grease, dirt and other accumulated soils from transportation
or storage contaminates that may have deposited on the coil
surface. The multi-step process also treats the metal surface
to remove any embedded contaminates and enhance coating adhesion.
Upon completion of the cleaning and surface treatment of the
metal the coil is fully dried prior to coating.
Based on fin density and customer preference; Bronz-Glow's
F-870/F-875 may be dipped or spray applied. Both
applications are applied in a layered manner. Each layered
application is partially cured prior to application of the
following finish layer. The process of layering our proprietary
coil coat provides for a tougher, longer lasting finish. Bronz-Glow
always recommends dip coating over spray coating to ensure
100% coating coverage. This is especially crucial on coils
of 3 or more rows.
Upon completion of our coating process each coils receives
its final Q/A inspection and is tagged with a warranty registration
number. The nitrogen purge is rechecked prior to crating and
tagged alerting the contractor the coil holds a nitrogen purge
of 50 psi. This aids in determining if the coil was damaged
during transport. The coil is carefully re-crated and shipped
as instructed to its final destination.
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Complete Unit Coating Process
Like replacement coils; manufactured systems are carefully
examined upon arrival for any damage. One or all of the following
practices and procedures are in place depending on the engineers
or buyers job specification requirement. Normal turn-a-round
time is 3 days
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In-House Dip Coating
Our Premier coating process is our 5-Star Dip Processing
of coils. Dip coating coils installed in a unit require the
removal of the coil from the manufactured unit. The first
step is to remove all required panels and any other accessory
necessary to gain access to the coil. Panels and any other
removed accessory is tagged with the job number and unit number
then stored in an assigned bin or area. We often receive multiple
numbers of the same model unit and this method ensures that
the unit is reassembled with its original parts. The equipments
refrigeration is recovered, weighed and stored in EPA/DOT
storage container. Coils are then removed. The removed coil
is capped and Schrader valve installed. The open tubing remaining
on the unit is also capped to prevent moisture infiltration.
The coil is then charged with fifty pounds of nitrogen to
ensure the coil is not damaged in the coating process allowing
infiltration of cleaning solutions or coating. When the coil
coating process is complete and the coil passes final coating
Q/A inspection it is assigned a warranty registration number
and sent to the a/c department for reassembly.
Prior to being reinstalled, our installing a/c technician
will check the nitrogen blanket on the coil to ensure it still
reads 50psi prior to releasing the charge. Caps and are removed
from the coil and caps from the unit. The coil is then replaced
in the unit and brazed into place. The installing technician
will then pressurize the system to ensure it is leak free.
The technician then will pull 400 microns vacuum on the system
to ensure a dry leak free system. Once the system is verified
dry and leak free the same refrigerant originally recovered
is placed back in the system. The panels and accessories are
replaced and the unit receives its final Q/A inspection and
prepared for shipment to its specified destination. Normal
turn-a-round time for a single unit is 5 days.
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In-House Spray Coating For Coils
When requested to spray coat a coil in a manufactured system,
all necessary panels and accessories are removed to gain complete
access to the front, back, U-bend and header sides of the
coil. Panels and other accessories are tagged and stored in
an assigned location or bin. We often receive multiple numbers
of a of a single model number, in this way each unit is re-assembled
with its original parts. When sufficient disassembly to expose
all areas of the coil is complete, parts of the chassis that
may be subject to over-spray are masked. The coil of the disassembled
unit is cleaned and dried, then transported to the coating
department to be spray coated. Once coating is completed the
coil is Q/A inspected the warranty registration tag number
is attached to the coil and the unit is transported to the
a/c department for reassembly. The unit is reassembled with
its original parts, once again Q/A inspected and upon passing
Q/A is repackaged and prepared for shipment to its designated
location. Normal turn-a-round time is 3 days.
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Cabinet Coating
Bronz-Glow has the capability of meeting or exceeding
virtually any cabinet coating specification. We are highly
experienced in coating exteriors, interiors, insulation, blower
wheel assemblies, compressors, dryers, tubing, louvers and
most any other component found on an HVAC/R system. Most units
require substantial disassembly to coat the interior or insulation.
Exterior doors, panels, lid cover and fans are removed to
provide complete access to the interior surfaces. When coating
the interior and exterior of a unit usually the only components
not removed is the compressor its associated tubing, electrical
wiring and electrical panel.
Any part of the unit not to be coated is either masked or
removed from the unit. When the unit is disassembled for coating
the panels and chassis is transported to the coating department
for surface preparation. The chassis and panels are coated
with Bronz-Glow's 815-S Clear Cabinet Coat. This coating will
protect against corrosion over the entire pH range of 1.0-14.0
and contains a 10 Florida sun U.V. inhibitor. This clear coating
not only protects the cabinet but covers decals, labels, schematics
and permanent marker without causing distortion of the lettering
or drawing plus protects it from U.V. fade yet allows the
manufacturer's color to remain predominant.
When all components have been coated, cured and passed Q/A
inspection they are transferred to our reassembly department.
During reassembly all screw holes are dotted with silicone
to prevent damage to the coating and to aid in preventing
screws from rusting and being difficult to remove as well
as it helps to prevent the vibration from the operating unit
from loosening the screws. Q/A inspections are conducted throughout
the reassembly process. Motor mounting in audited, wiring
inspected, belt tension and filter replacement verified. Additionally
all panels, brackets, braces, clamps, etc. are inspected for
proper alignment and installation. Normal turn-a-round time
is 3-5 days depending on size and extent of coating specified.
Upon completion of the unit's reassembly all smudges or other
blemishes that may have occurred during the reassembly are
cleaned and touched up. The completed unit is presented to
our senior Q/A inspector for final inspection. Upon passing
inspection the unit is prepared for shipment and shipped to
its designated location.
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For more detailed information call, email, or refer
to our other Technical
Data on this site.
Bronz-Glow, Husky & Logo are
Registered Trademarks of Bronz-Glow Holdings, St. Augustine,
FL
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