Aprilaire 8570 installation instructions Aprilaire Model

				SUPPLIED JUMPER	APRILAIRE MODEL
TWO-STAGE FURNACE					8570 THERMOSTAT
	2ND				W2
					W1
	STAGE		W2
1ST	HEAT				RH
STAGE			W1		R
HEAT	1ST STAGE				RC
			Y1
		COOL			G
	2ND STAGE		Y2		Y1
		COOL
FAN			G		Y2
					B
RELAY
			C		O
	24				C
	VAC		R		I+
						AHC
L2	120	L1			I-	CONNECTION
	VAC				ZB		6504
					ZA		CONNECTION
					GND		OUTDOOR (ODT)
							& INDOOR (IDS)
	1ST		Y1		ODT		TEMPERATURE
	STG				IDS		SENSORS
	COOL
2ND
					COM		EVENT
STG			Y2
COOL					NO		TRIGGERED
							OUTPUT
			C		NC
							(ETO)

TWO-STAGE AIR CONDITIONER

THERMOSTAT

CONFIGURATION SWITCH SETTINGS

SINGLE	1	ON	MULTI
HP	2		HC
ELECT	3		GAS
O	4		B

ELECT/GAS - SET TO ELECT FOR ELECTRIC HEAT, SET TO GAS FOR FOSSIL FUEL HEAT

TWO-STAGE ROOF TOP UNIT

(RTU)

		2ND
	STAGE		W2
1ST	HEAT
STAGE			W1
HEAT
		1ST
	STAGE		Y1
2ND	COOL
STAGE			Y2
COOL
		FAN	G
	RELAY
	24		C
	VAC		R
L2	120	L1

VAC

SUPPLIED	APRILAIRE MODEL
	8570 THERMOSTAT
JUMPER
	W2
	W1
	RH
	R
	RC
	G
	Y1
	Y2
	B
	O
	C
	I+	AHC
	I-	CONNECTION
	ZB		6504
	ZA		CONNECTION
	GND		OUTDOOR (ODT)
			& INDOOR (IDS)
	ODT		TEMPERATURE
	IDS		SENSORS
	COM		EVENT
	NO		TRIGGERED
			OUTPUT
	NC
			(ETO)

THERMOSTAT

CONFIGURATION SWITCH SETTINGS

SINGLE	1	ON	MULTI
HP	2		HC
ELECT	3		GAS
O	4		B

ELECT/GAS - SET TO ELECT FOR ELECTRIC HEAT, SET TO GAS FOR FOSSIL FUEL HEAT

Diagram 2: Two-Stage Furnace and AC

Diagram 3: Two-Stage Roof Top Unit

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