York YVAA Installation Operation & Maintenance page 146

SECTION 8 - MICROPANEL
The Compressor Displacement Setup option displays
the compressor type installed in the respective circuits.
This must be programmed in accordance with the com-
pressor data plate information to ensure the control al-
gorithms to cycle fans perform correctly. The follow-
ing are selectable using the ◄ and ► (arrow) keys:
• CTS24 = 62
• CTS36 = 82
• CTS45 = 100
• CTS51 = 128
• CTS70 = 187
• GTS75 = 217
SETUP MODE SYS 1 COMPRESSOR
DISPLACEMENT
◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX
SETUP MODE SYS 2 COMPRESSOR
DISPLACEMENT
◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX
The following setup OPTION display programs the
Maximum Compressor Speed of the chiller. This must
be programmed based on the PIN number (model
num¬ber) on the chiller data plate. See PIN number
39, 40 and 41 for the program value.
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
MAXIMUM COMPRESSOR SPEED
The following setup OPTION display programs the
Minimum Compressor Speed of the chiller. This is nor-
mally programmed for 50 Hz.
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
MINIMUM RUNNING SPEED
The following setup OPTION display programs the
Minimum Condenser Fan VSD start frequency when
quick start is selected.
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
QUICK START VSD START FREQ = XXX HZ
The following Motor Temp Sensor OPTION displays
are selectable as ENABLED or DISABLED for the re-
spective system using the ◄ and ► (ARROW) keys.
The choices are as follows:
• NONE (default)
• TEMP SENSOR 1
• TEMP SENSOR 2
• TEMP SENSOR 3
146
= XXX.X HZ
= XXX HZ
SETUP MODE SYS 1 MOTOR SENSOR TO
IGNORE ◄ ► XXXXXXXXXXXXXXXXXXXXX
SETUP MODE SYS 2 MOTOR SENSOR TO IG-
NORE
◄ ► XXXXXXXXXXXXXXXXXXXXXXXXXXXX
If a motor temperature sensor fails, a single sensor may
be ignored by making a program change in the Unit
Setup Mode. The default setting is NONE, indicating
all sensors are being monitored.
It is important to notify a qualified HVAC
service technician in the event a motor
temperature fails to prevent premature
failure of the compressor.
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
VI DIFF TEMP OFFSET
SYS 1 & 2 MAXIMUM FAN SPEED
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
SYS 1 MAXIMUM FAN SPEED
MIN DISCHARGE SUCT DIF
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
SYS 1 MIN DISCHARGE SUCT DIF= XX PSID
SETUP MODE ◄DEF XXXXX LO XXXXX HI XXXXX
SYS 2 MIN DISCHARGE SUCT DIF= XX PSID
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
CONDENSER FAN STARTUP DELAY = XXXX SEC
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
CONDENSER FAN CONTROL KP
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
CONDENSER FAN CONTROL TI
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
COND FAN START SPEED CONST A = X.XXX
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
COND FAN START SPEED CONST B = X.XXX
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
COND FAN START SPEED CONST C = X.XXX
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
MAX COND FAN START SPEED = X.XXX
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
DESIGN FAN POWER
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
FAN POWER EXPNENT
SETUP MODE ◄ DEF XXXXX LO XXXX HI XXXX
DESIGN ELEVATION
Form 201.47-ICOM1
Issue date: 17/11/2022
= XX.X °F
= XXX %
= XX.X
= XX.X
= XX.XX KW
= X.X
= XXXXX FT
JOHNSON CONTROLS