York R-410A W1 W2, Y1 Y2 Y3 Y4 G R C, Sd Sd, ZJ/ZR/ZF180-300Wiring Diagrams, Control, Thermostat

251934-YTG-G-0708

ZJ/ZR/ZF180-300 Wiring Diagrams

ZJ180-300 Typical Control Diagram

	CONTROL
THERMOSTAT	TERMINAL
TERMINALS	BLOCK

W1

W2

1

Y1

Y2

Y3

Y4

G

R

C

3

RC

W1

W2

Y1

G

OCC

P

P1

Y2

X

R

SD

C

EXPANSION

BOARD

Smoke

Detector

R	2
	Jumper

SD

SD

24 VAC

4

OCC

5

X

TERMINALS ON

ALIMITED NUMBER OF

TERMINAL

BLOCK

Y3

Y4

C

Class 2

THERMOSTATS

1Second stage heating not required on single stage heating units.

2Jumper is required if there is no Smoke Detector circuit.

3Jumper is required for any combination of R, RC, or RH.

4OCC is an output from the thermostat to indicate the Occupied condition.

5X is an input to the thermostat to display Error Status conditions.

Johnson Controls Unitary Products 93