York BP 036 Typical Power Wiring, Typical Control Wiring, Typical Field Power & Control Wiring

255027-YTG-B-0507

TYPICAL POWER WIRING

REFER TO THE ELECTRICAL DATA

TABLES TO SIZE THE DISCONNECT

SWITCH, OVERCURRENT PROTEC-

TION AND WIRING.

TYPICAL CONTROL WIRING

COOLING / HEATING (24 VOLT THERMOSTAT)

THERMOSTAT1

TERMINALS

	RH	UNIT TERMINAL
ADD		STRIP TB1
JUMPER	RC	R
	Y	Y1	24 VOLT
		Y2	TRANSFORMER

WW1

W2

GG

C

124 VOLT THERMOSTAT 2ET07701024. TO CONTROL THE ECONOMIZER ON THE SECOND STAGE COOLING OR TO HAVE AN ELECTRIC HEAT ACCESSORY WITH TWO STAGES OF HEAT, USE THERMOSTAT 2TH0471024.

COOLING / HEATING (ELECTRONIC THERMOSTAT)

MULTI STAGE

COOLING / HEATING (ELECTRONIC THERMOSTAT)

SINGLE STAGE

THERMOSTAT1
TERMINALS			UNIT TERMINAL
ADD	RC		STRIP TB1	24 VOLT
	RH		R	TRANSFORMER
JUMPER
	Y1		Y1
	Y2	2	Y2
4	W1		W1
	W2	3	W2
	G		G

BC

LED 1			X
LED 2	NOT		OCC
	USED
COM		4

ADD	A1
JUMPER	A2

T TO REMOTE SENSOR

T 2TH040702224 IF USED

1ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET04700224 (INCLUDES SUBBASE).

2SECOND STAGE COOLING IS NOT REQUIRED ON UNITS LESS ECONOMIZER.

3SECOND STAGE HEATING IS ONLY REQUIRED ON UNITS WITH A TWO STAGE ELECTRIC HEATER OR 2 STAGE GAS HEAT.

4REMOVE JUMPER J2 FROM TERMINALS 4 AND 9 ON JUMPER PLUG CONNECTOR P6 ON UNITS WITH ECONOMIZER. TERMINALS A1 AND A2 PROVIDE A RELAY OUT-PUT TO CLOSE THE OUTDOOR ECONOMIZER DAMPERS WHEN THE THERMOSTAT SWITCHES TO THE SET-BACK POSITION.

	THERMOSTAT1		UNIT TERMINAL
	TERMINALS
			STRIP TB1
		RH
ADD		RC		R
		Y		Y1
JUMPER

WW1

G G

C

24 VOLT

TRANSFORMER

1ELECTRONIC PROGRAMMABLE THERMOSTAT 2ET07701024 (INCLUDES SUBBASE).

TO CONTROL THE ECONOMIZER ON SECOND STAGE COOLING, USE THERMOSTAT 2TH04700224.

FIGURE 2 - TYPICAL FIELD POWER & CONTROL WIRING

34 Unitary Products Group