York YCAV0157 Installation Operation & Maintenance page 267

SERVICE AO J14-1
XXX.X %
SERVICE AO J14-2
XXX.X %
SERVICE AO J14-3
XXX.X %
SERVICE AO J14-4
XXX.X %
SERVICE AO J25-1
XXX.X %
SERVICE AO J25-2
XXX.X %
SERVICE AO J25-3
XXX.X %
SERVICE AO J25-4
XXX.X %
The sixth data section displays the "VSD" digital outputs
(DO) that can be viewed from the service mode. The
Digital Output signals indicate the status of the output.
The 0-120VAC digital outputs are referenced to neutral
(Wire 2).
SERVICE DO J10-2
VSD LOGIC
JOHNSON CONTROLS
SERVICE KEY (CON'T)
SYS 3 FEED VALVE OUT
= XX.X VDC
SYS 3 DRAIN VALVE OUT
= XX.X VDC
SYS 4 FEED VALVE OUT
= XX.X VDC
SYS 4 DRAIN VALVE OUT
= XX.X VDC
SYS 1 SPARE
= XX.X VDC
SYS 2 SPARE
= XX.X VDC
SYS 3 SPARE
= XX.X VDC
SYS 4 SPARE
= XX.X VDC
VSD COOLING FAN/PUMP
STAUS = XXX
FORM 201.21-NM1 (1223)
8
267