Aprilaire 8570 installation instructions Diagram 7 Single-Stage Heat Pump with Two-Stage

					APRILAIRE MODEL
INDOOR UNIT - AIR HANDLER				SUPPLIED	8570 THERMOSTAT
				JUMPER
					W2
1ST STAGE					W1
			W1		RH
AUX. HEAT
					R
COMPRESSOR			Y1		RC
					G
					Y1
		FAN	G		Y2
	RELAY				B
			C		O
	24				C
	VAC		R
					I+
						AHC
L2	120	L1			I-	CONNECTION
	VAC				ZB
							6504
					ZA		CONNECTION
	DEFROST		W1		GND		OUTDOOR (ODT)
							& INDOOR (IDS)
1ST STAGE			Y1		ODT		TEMPERATURE
					IDS		SENSORS
COMP.
					COM		EVENT
REV.			O		NO		TRIGGERED
VALVE							OUTPUT
					NC
							(ETO)
	SERVICE		L
			R	Diagram 6: Single-Stage
			C
				Heat Pump with Single-Stage
OUTDOOR UNIT - HEAT PUMP					Back Up Heat

THERMOSTAT

CONFIGURATION

SWITCH SETTINGS

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

SINGLE/MULTI – SET TO SINGLE FOR SINGLE STAGE HEAT PUMP

ELECT/GAS - SET TO ELECT FOR ELECTRIC AUXILIARY HEAT, SET TO GAS FOR FOSSIL FUEL (DUAL FUEL) AUXILIARY HEAT

O/B – SET TO “O” IF HEAT PUMP REVERSING VALVE MUST BE ENERGIZED WHEN COOLING, SET TO “B” IF IT IS TO BE ENERGIZED IN HEATING

AUXILIARY HEAT SET UP

1.WITH THERMOSTAT IN OFF MODE, PRESS AND HOLD THE UP AND DOWN BUTTONS FOR 3 SECONDS TO ENTER THE ADVANCED SETTINGS MENU.

2.SCROLL DOWN AND HIGHLIGHT THE “AUXILIARY HEAT SETUP” OPTION AND PRESS SELECT.

3.HIGHLIGHT “ONE STAGE AUX HEAT” AND PRESS SELECT

INDOOR UNIT - AIR HANDLER	SUPPLIED JUMPER	APRILAIRE MODEL
		8570 THERMOSTAT

	2ND STAGE		W2	W2
				W1
	AUX. HEAT
1ST STAGE				RH
			W1	R
AUX. HEAT
				RC
	COMPRESSOR		Y1	G
				Y1
		FAN	G	Y2
	RELAY			B
			C	O
	24			C
	VAC		R
				I+
					AHC
L2	120	L1		I-	CONNECTION
	VAC			ZB
						6504
				ZA		CONNECTION
	DEFROST		W1	GND		OUTDOOR (ODT)
						& INDOOR (IDS)
1ST STAGE			Y1	ODT		TEMPERATURE
COMP.				IDS		SENSORS
REV.				COM		EVENT
			O	NO		TRIGGERED
VALVE						OUTPUT
				NC
			L			(ETO)
	SERVICE

R

Diagram 7: Single-Stage

CHeat Pump with Two-Stage

OUTDOOR UNIT - HEAT PUMP Back Up Heat

THERMOSTAT

CONFIGURATION

SWITCH SETTINGS

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

SINGLE/MULTI – SET TO SINGLE FOR SINGLE STAGE HEAT PUMP

ELECT/GAS - SET TO ELECT FOR ELECTRIC AUXILIARY HEAT, SET TO GAS FOR FOSSIL FUEL (DUAL FUEL) AUXILIARY HEAT

O/B – SET TO “O” IF HEAT PUMP REVERSING VALVE MUST BE ENERGIZED WHEN COOLING, SET TO “B” IF IT IS TO BE ENERGIZED IN HEATING

AUXILIARY HEAT SET UP

1.WITH THERMOSTAT IN OFF MODE, PRESS AND HOLD THE UP AND DOWN BUTTONS FOR 3 SECONDS TO ENTER THE ADVANCED SETTINGS MENU.

2.SCROLL DOWN AND HIGHLIGHT THE “AUXILIARY HEAT SETUP” OPTION AND PRESS SELECT.

3.HIGHLIGHT “TWO STAGE AUX HEAT” AND PRESS SELECT

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