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Engine : Refrigeration AC - 904/610
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If it is necessary to increase the operating head pressure of the refrigeration system using the device shown in the illustration, what should be done? Illustration GS-RA-14
A) "2" should be turned to further compress the spring
B) "2" should be turned to relax the compression of the spring
C) "4" should be rotated to compress the enclosed bellows
D) "4" should be rotated to relax the enclosed bellows
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