Typical Field Power & Control Wiring - York Sunline 2000 Technical Manual

637367-XTG-B-1110
THERMOSTAT
TERMINALS
W1
W2
Y1
Y2
G
R
C
4
RC
OCC
X
TERMINALS ON
A LIMITED
NUMBER OF
THERMOSTATS
1
Second stage heating not required on single stage heating units.
2
Second stage cooling not required on single stage cooling units.
3
Jumper is required if there is no Smoke Detector circuit.
4
Jumper is required for any combination of R, RC, or RH.
5
OCC is an output from the thermostat to indicate the Occupied condition.
6 X is an input to the thermostat to display Error Status conditions.
FIGURE 2 - TYPICAL FIELD POWER & CONTROL WIRING
20
TYPICAL POWER WIRING
TYPICAL CONTROL WIRING
1
2
5
6
CONTROL
TERMINAL
BLOCK
W1
W2
Y1
G
OCC
P
P1
Y2
Smoke
Detector
X
R
R
Jumper
SD
SD
C
SD
C
3
24 VAC
Class 2
Johnson Controls Unitary Products