York DR090 Typical Low Voltage Field Wiring, YTG-C-0606, TYPICAL THERMOSTAT RC RH Y1 Y2 G W1 W2 C

THERMOSTAT 1

TERMINALS

RC

RH

Y1

Y2

W1

W2

G

C

X1

X3

X4

A1

A2

T

T

(RCB )

REHEAT

CONTROL BOARD

R

Y1

Y2

W1

W2

G

C

OCC

TERMINAL BLOCK

2

RH

HUM	1
HUM	2	DEHUMIDISTAT3

3

4

246721-YTG-C-0606

TO REMOTE SENSOR 2ET04701324 IF USED

1Electronic programmable Thermostat 2ET0770010024 ( includes subbase).

2Terminals A1 and A2 provide a relay output to close the outdoor economizer dampers when the thermostat switches to the set-back position.

3Dehumidistat closes on rise in humidity.

TYPICAL

THERMOSTAT

RC

RH

Y1

Y2

G

W1

W2

C

R

Y1

Y2 ( RCB )

GREHEAT

CONTROL

W1 BOARD

W2

OCC

C

HUM

TERMINAL

BLOCK

RH

1 DEHUMIDISTAT1

2

3

4

1Dehumidistat closes on rise in humidity.

FIGURE 32 - TYPICAL LOW VOLTAGE FIELD WIRING

52 Unitary Products Group