York R-410A - Page 125

505428-YTG-V-0417
Johnson Controls Unitary Products 125
Typical Simplified Field Wiring Diagram – NL090 Evaporator with YC090 Condenser
Typical Simplified Field Wiring Diagram – NL090 Evaporator
CONDENSER CONTROL BOX
EVAPORATOR CONTROL BOX
THERMOSTAT
SINGLE STAGE COMP
TWO SPEED FAN
TWO STAGE HEAT
W1 W2 Y1 G Y2 0CC CX R SD-24
SE CONTROL BOARD
THERMOSTAT CONNECTIONS
R C Y1 Y2 G W1 W2
UCB
VFD COMM
TB5
VFD
VLT
VFD C
1
2
3
4
C S1 S2 G1 G2 66 60 X
C S1 S2 G1 G2 66 60 X
TB2
TB2
TB
3-1
UNIT
POWER
SUPPLY