Diagram 4: Boiler With Ac; Diagram 5: Radiant Floor 1St Stage Heat With Furnace 2Nd Stage Heat And Ac - Aprilaire 8570 Safety & Installation Instructions

REMOVE RH PRONG
HEAT
W
FROM SUPPLIED JUMPER
RELAY
APRILAIRE MODEL
C
8570 THERMOSTAT
24
VAC
W2
R
W1
120 RH
VAC
R
BOILER
RC
G
Y1
FAN
G Y2
RELAY
B
1ST STAGE O
Y1
COOL
C
C
I+
24
VAC
I-
R
ZB
120
ZA
VAC
INDOOR AIR HANDLER
GND
ODT
1ST
IDS
STG Y1
COOL
COM
C NO
NC
AIR CONDITIONER

Diagram 4: Boiler with AC

- 12 -
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
SINGLE MULTI
1
HP 2 HC
ELECT 3 GAS
O B
4
ELECT/GAS - SET TO
ELECT FOR HOT WATER
COIL HEAT, SET TO GAS
FOR RADIANT HEAT
AHC
CONNECTION
6504
CONNECTION
OUTDOOR (ODT)
& INDOOR (IDS)
TEMPERATURE
SENSORS
EVENT
TRIGGERED
OUTPUT
(ETO)
HEAT
W
RELAY
SUPPLIED JUMPER
C
24
VAC
R
APRILAIRE MODEL
8570 THERMOSTAT
120
W2
VAC
W1
RADIANT FLOOR HEAT
RH
R
1ST
RC
STAGE W1
G
HEAT
1ST STAGE
Y1 Y1
COOL
Y2
FAN B
G
RELAY
O
C C
24
VAC
I+
AHC
R
CONNECTION
I-
120
ZB
VAC
ZA
FURNACE
GND
1ST
ODT
STG Y1
IDS
COOL
C
COM
NO
NC
AIR CONDITIONER

Diagram 5: Radiant Floor 1st Stage Heat with Furnace 2nd Stage Heat and AC

- 13 -
1 W
24V COM
2
E/W2
3 R
4
5
Y
6
7 Y
8
O
9
MODEL 8024 24-VOLT
RELAY PACK (not supplied)
THERMOSTAT
CONFIGURATION
SWITCH SETTINGS
SINGLE 1 MULTI
HP 2 HC
ELECT 3 GAS
O 4 B
6504
CONNECTION
ELECT/GAS - SET TO
OUTDOOR (ODT)
ELECT FOR ELECTRIC
& INDOOR (IDS)
FURNACE, SET TO GAS
TEMPERATURE
FOR FOSSIL FUEL
SENSORS
FURNACE
EVENT
TRIGGERED
OUTPUT
(ETO)