Microprocessor Board Layout - York YCAS0098EB Installation Operation & Maintenance

Air-cooled liquid chillers
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1.11

MICROPROCESSOR BOARD LAYOUT

1
2
5
ITEM
1
2
3
4
5
FIG. 46 – COMPONENT LAYOUT
130
DESIGNATION
J18
Clock Enable/Disable Jump Contact
RTC (U13)
Real Time Clock and Battery Backup I.C.
EPROM
Microprocessor I.C. (label shows version)
NOTE : Dimple is positioned at top edge
Dip Switch Set (8 switches)
S1
S2 to S5
System Switches S2 = System 1
DESCRIPTION
S3 = System 2
S4 = System 3
S5 = System 4
JOHNSON CONTROLS
3
4
26001A

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