Diagram 6: Single-Stage Heat Pump With Single-Stage Back Up Heat; Diagram 7 - Single-Stage Heat Pump With - Aprilaire 8570 Safety & Installation Instructions

SUPPLIED
INDOOR UNIT - AIR HANDLER
JUMPER
1ST STAGE
W1
AUX. HEAT
COMPRESSOR Y1
FAN
G
RELAY
C
24
VAC
R
120
VAC
W1
DEFROST
Y1
1ST STAGE
COMP.
REV.
O
VALVE
L
SERVICE
R
Diagram 6: Single-Stage
C
Heat Pump with Single-Stage
OUTDOOR UNIT - HEAT PUMP
Back Up Heat
APRILAIRE MODEL
8570 THERMOSTAT
W2
THERMOSTAT
W1
CONFIGURATION
RH
SWITCH SETTINGS
R
RC SINGLE 1 MULTI
HP HC
2
G
ELECT GAS
3
Y1
O 4 B
Y2
B
SINGLE/MULTI – SET TO SINGLE
O
FOR SINGLE STAGE HEAT PUMP
C
ELECT/GAS - SET TO ELECT FOR
ELECTRIC AUXILIARY HEAT, SET
I+
AHC
TO GAS FOR FOSSIL FUEL (DUAL
CONNECTION
I-
FUEL) AUXILIARY HEAT
ZB O/B – SET TO "O" IF HEAT PUMP
6504
REVERSING VALVE MUST BE
ZA CONNECTION
ENERGIZED WHEN COOLING,
SET TO "B" IF IT IS TO BE
OUTDOOR (ODT)
GND
ENERGIZED IN HEATING
& INDOOR (IDS)
ODT
TEMPERATURE
AUXILIARY HEAT SET UP
SENSORS
IDS
1. WITH THERMOSTAT IN OFF
MODE, PRESS AND HOLD THE
COM EVENT
UP AND DOWN BUTTONS FOR
TRIGGERED
NO
3 SECONDS TO ENTER THE
OUTPUT
NC ADVANCED SETTINGS MENU.
(ETO)
2. SCROLL DOWN AND
HIGHLIGHT THE "AUXILIARY
HEAT SETUP" OPTION AND
PRESS SELECT.
3. HIGHLIGHT "ONE STAGE AUX
HEAT" AND PRESS SELECT
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INDOOR UNIT - AIR HANDLER SUPPLIED JUMPER
2ND STAGE
W2
AUX. HEAT
1ST STAGE
W1
AUX. HEAT
COMPRESSOR Y1
FAN
G
RELAY
C
24
VAC
R
120
VAC
W1
DEFROST
Y1
1ST STAGE
COMP.
REV.
O
VALVE
L
SERVICE
R
Diagram 7: Single-Stage
C
Heat Pump with Two-Stage
Back Up Heat
OUTDOOR UNIT - HEAT PUMP
APRILAIRE MODEL
8570 THERMOSTAT
W2
THERMOSTAT
W1
CONFIGURATION
RH
SWITCH SETTINGS
R
SINGLE MULTI
RC 1
HP 2 HC
G
ELECT 3 GAS
Y1
O B
4
Y2
B
SINGLE/MULTI – SET TO SINGLE
O
FOR SINGLE STAGE HEAT PUMP
C
ELECT/GAS - SET TO ELECT FOR
ELECTRIC AUXILIARY HEAT, SET
I+
AHC
TO GAS FOR FOSSIL FUEL (DUAL
CONNECTION
I-
FUEL) AUXILIARY HEAT
ZB O/B – SET TO "O" IF HEAT PUMP
6504
REVERSING VALVE MUST BE
CONNECTION
ZA
ENERGIZED WHEN COOLING,
SET TO "B" IF IT IS TO BE
OUTDOOR (ODT)
GND
ENERGIZED IN HEATING
& INDOOR (IDS)
ODT
TEMPERATURE
AUXILIARY HEAT SET UP
SENSORS
IDS
1. WITH THERMOSTAT IN OFF
MODE, PRESS AND HOLD THE
EVENT
COM
UP AND DOWN BUTTONS FOR
TRIGGERED
NO
3 SECONDS TO ENTER THE
OUTPUT
NC ADVANCED SETTINGS MENU.
(ETO)
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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