035-17311-002-A-0803

THERMOSTAT1

TERMINALS

RC

RH

Y1

Y2

W1

W2

G

C

X1

X3

2

X4

A1

A2

T

T

TOREMOTESENSOR 2ET04701324IFUSED

UNITTERMINALS

STRIPTB1

R

Y1

Y2

W1

W2

G

C

24Volt

XTransformer

OCC

1ElectronicprogrammableThermostat2ET0770010024(includessubbase).

2TerminalsA1andA2providearelayoutputtoclosetheoutdoor economizerdamperswhenthethermostatswitchestotheset-backposition.

FIGURE 17 - ELECTRONIC THERMOSTAT FIELD WIRING

T-STAT

W1

W2

Y1

G

Y2

C

RH

RC

W1

W2

Y1

G

OCC

MINREMOTE POS

Y2

X

UNITCONTROL

BOARD

R

SD

C

FIGURE 18 - FIELD WIRING 24 VOLT THERMOSTAT

18

Unitary Products Group

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York 150, 120 installation manual Electronic Thermostat Field Wiring