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SEALED SYSTEM SWEEP CHARGE
SERVICING PROCEDURES
Se a l e d s y st e m sw e e p cha rg e p ro ce ssin g is a m od ified procedure diff er ent f rom the evac u-
a t io n m et h o d e m p l o yi ng a va cuu m p u mp a nd m icr o n gauge that wer e used in t he past.
T h ro u g h e xt e n si v e e va lu a ti on , we h a v e co n clu d e d if t he sw eep charge procedure is prop-
e rly d o n e t h er e s h o u l d b e n o l o n g ter m ad ve r se a ffe ct s on product per for mance.
It s i g ni fi c a n t l y r e d u ce s th e a mo u n t o f e qu ip m en t a n d tim e requir ed to properly com plete a
sealed system repair.
As i n t h e p a st , te ch ni ci an s u sin g thi s swe e p ch a r g e process must be thor oughly fam iliar
wit h bra z i n g t e ch n i q u e s, se al e d syste m d ia gn o sis a nd repair m ethods.
COMPRESSOR OPERATIVE
F o ll o w i n g i s a li st o f e q ui p me nt ne e d ed fo r se a led system sw eep char ge pr ocessing:
Permanent Braze Type Piercing Valve
Quick Coupler Hand Valve with Valve Core Depressor
Valve Core Removal Tool
Three Foot Charging Hose
Purge Hose
Heated Charging Cylinder Equipped with Automatic Relief Valve
Brazing Equipment
Goggles
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