York BQ 036, BQ 060, BQ 048 warranty Typical Power Wiring, Typical Control Wiring

036-21508-005-A-0305

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

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			THERMOSTAT1
ADD		RC			STRIP TB1	24 VOLT
		RH			R	TRANSFORMER		TERMINALS	UNIT TERMINAL
JUMPER
		Y1			Y1				STRIP TB1
		Y2		2	Y2			RH
		W1			W1			RC	R
	4	W2		3	W2
							ADD
		G			G			Y	Y1
							JUMPER
		B			C			W	W1
		LED 1			X
		LED 2	NOT		OCC			G	G
		COM	USED	4					C
		A1
ADD									24 VOLT
JUMPER		A2
		T		TO REMOTE SENSOR					TRANSFORMER
		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.

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.

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