Samsung AR09HSFSHWKNCV, Service Manual

Page: 146 / 249

1 2 - 8 Sams u ng El ectronics
12-6-2 " P u m p down" P r oc e du re
P u mp down wi ll b e carried o u t w h en an e v aporator is rep l aced or w h en t h e u nit is re l ocated in anot h er area.
R el oc a t i on of t he a i r cond i t i on er
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entering.
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At t h is time , co v er t h e v a lv e o f t h e o u tdoor u nit and t h e ot h er pipe u sing a cap or v iny l p lu g to a v oid f oreign
materia l entering.
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4 ) Tu rn t h e 3 way v a lv e c l oc k wise to c l ose.
1 ) Remo v e t h e caps f rom t h e 3 way v a lv e and t h e
3 way v a lv e.
2) Tu rn t h e 3 way v a lv e c l oc k wise to c l ose and
connect a press u re ga u ge (l ow press u re side)
to t h e ser v ice v a lv e , and open t h e 3 way v a lv e
again.
3) Set t h e u nit to coo l operation mode.
( C h ec k i f t h e compressor is operating.)
5) W h en t h e press u re ga u ge indicates " 0 " t u rn t h e
3 way v a lv e c l oc k wise to c l ose.
6 ) Stop operation o f t h e air conditioner.
7 ) C l ose t h e cap o f eac h v a lv e.
3 way Va lv e
2 way Va lv e