McQuay MWSS Guía para resolver problemas Pagina 40

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MCQUAY Service Guide Book Controller Configuration
39
6.5 SQ Board for Wiring up to 1000m Conversion
Comparison of Sequential Main Board SQMB01 Before & After conversion:
Before
After
Work Indication (WI):
Step 1: Remove Jumper J1 and J2.
Step 2: Solder PART 2051-MAX1483
(IC: MAX1483) to U8.
PART: 2051-MAX1483
IC :MAX1483
Jumper J1 and
J2 removed
U8
J1
J2
IC:MAX1483
J1 removed
J2 removed
Enlarge view of SQMB01 after conversion
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