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FORM 150.40-NM20
61
YORK INTERNATIONAL
MICRO LOGIC BOARD DIP SWITCH OPTIONS (REV.
C BOARDS)
A Dip Switch (U39) with 7 miniature rocker switches is
available for options on the REV. C Micro Logic Board.
(YCHA120, 150, 175 & 200)
1 = Spare
2 = Spare
3 = OFF: RWT Control (Standard as Shipped)
ON: LWT Control
4 = OFF: No EMS Control (No Digital Input
Board, Standard As Shipped)
ON: EMS Control (Optional Digital Input
Board Installed)
5 = OFF: 4 Stage Control (Standard as
Shipped)
ON: 8 Stage Control (Optional as ordered
for 6, 7, or 8 stage control)
6 = Spare
7 = OFF: Automatic lead/lag compressor time
sharing by Micro
ON: Manual Sys 1 lead/lag selection via
Control Panel (Standard as
Shipped)
* Refer to above sketch to identify “OFF” and “ON”
positions. The “dot” can be misleading when identify-
ing switch position. See the “Side View” drawings
for recommended position verification.
FIG. 21 – MICRO LOGIC BOARD DIP SWITCHES (REV. “C” BOARD)
00012TG
LD01795
U39