Brochure

Mainstream Engineering Corporation
1-800-866-3550
www.qwik.com
MKTG000045 / 2000802
Qwik System Flush
®
1. more contamination that you remove with a nitrogen purge before, the less Qwik System
Flush® will be wasted removing contamination that does not require a solvent. Nitrogen is
much less expensive than any flushing solvent and should be used liberally in comparison.
2. Repeat a nitrogen purge on all areas where Qwik
System Flush® was introduced into the line set. Never
exceed 100 psig. When you purge these areas, you will
see the solvent exiting the line as a liquid. Continue
purging the line for an additional minute after you no
longer see Qwik System Flush® exiting the system.
3. A flushing solvent cannot be used for components
such as the compressor, filter/drier, or expansion
device. Always remove filter-driers when performing
a flush, and never try to flush through expansion
devices. Once you have cleaned or replaced as much
of the piping and components in the system as
possible, continue to step 10.
Application Bulletin (con’t)
(for Abbreviated Instructions see page 1)
Page 5 of 5
Connect the new components, installing BOTH a new
liquid-line filter/drier and a new suction line filter/drier
into the system. The purpose of the suction line drier
is to catch residual acidic oil remaining in the system
before it can enter the suction line of the compressor and contaminate the compressor oil,
leading to premature compressor failure.
Leak test, evacuate and charge the system with refrigerant.
As an option to further assure all acid and moisture has been removed, use QwikInjector® to
introduce QwikShot® (acid treatment) into the operating system. One bottle will treat up to
a 5-ton system.
Allow the system to operate for a minimum of 15 minutes, and then use QwikCheck® to test
for acid. If acid is detected, wait an additional 30 minutes and retest for acid. If acid is still
detected, then install new filter/driers again as discussed in step 10 and repeat steps 12-13.
10.
11.
12.
13.
Qwik System Flush®
should never
be used in
a compressor,
expansion device,
or lter/drier.
Qwik System Flush®
should never
be used in
a compressor,
expansion device,
or lter/drier.
PROUDLY MADE
IN THE U.S.A.
Qwik System Flush® and Qwik-SF® are registered trademarks of Mainstream Engineering Corporation,
Rockledge, Fla. 32955, [phone] U.S. Patent Pending. All QwikProducts™ are made in the USA