Bryant 598A Series D Installation And Start-Up Instructions Manual page 8

BRYANT
PROGRAMMABLE TWO-STAGE
THERMOSTAT FURNACE WITH PSC
MODEL 2S
BLOWER MOTOR
COOL STAGE 1
Y1/W2
FAN
G
HEAT STAGE 1 W/W1
COOL STAGE 2
Y/Y2
HEAT STAGE 2
O/W2
24 VAC HOT
R
24 VAC COMM
C
N/A
B
OUTDOOR
S1
SENSOR
CONNECTION S2
H
R1
TWO-STAGE
BRYANT
THERMIDISTAT
CONTROL
BLOWER MOTOR
O/W2
HEAT STAGE 2
Y1/W2
COOL STAGE 1
HEAT STAGE 1 W/W1
Y/Y2
COOL STAGE 2
FAN G
R
24 VAC HOT
24 VAC COMM C
DHUM
N/A
HUM
HUMIDIFY
N/A B
S1
OUTDOOR
SENSOR
S2
CONNECTION
See notes 11, 12, 16, and 17
TWO-SPEED
AIR CONDITIONER
Y1 *
Y1
G
W/W1
Y2
Y/Y2
W2
R
R
C C
L
See notes 6, 16, and 17
A97447
N
FURNACE
WITH PSC TWO-SPEED
AIR CONDITIONER
W2
Y1
W/W1
Y2
Y/Y2
G
R
R
C C
HUMIDIFIER
(24 VAC)
OUTDOOR
SENSOR
A97461
Q
Fig. 7—Typical 24-v Circuit Connections (Continued)
BRYANT
NON-PROGRAMMABLE
THERMOSTAT
MODEL 2S
24 VAC HOT
24 VAC COMM
HEAT STAGE 1 W/W1
COOL STAGE 2
FAN
HEAT STAGE 2
COOL STAGE 1
N/A
OUTDOOR
SENSOR
CONNECTION
H
R1
OTHER BRAND
TWO-SPEED
THERMOSTATS
24 VAC HOT
R
24 VAC COM
C
HEAT STAGE 1
W
COOL STAGE 2
Y2
FAN
G
COOL STAGE 1
Y1
H
R1
—8—
TWO-STAGE
FURNACE WITH PSC
BLOWER MOTOR AIR CONDITIONER
R R
C C
W/W1
Y/Y2
G
G
Y/Y2
O/W2 W2
*
Y1
Y1
B
S1
See notes 7, 9, 16, and 17
S2
P
TWO-STAGE
FURNACE WITH PSC
BLOWER MOTOR
AIR CONDITIONER
R
C
W/W1
G
Y/Y2
W2
*
Y1
See notes 7 and 17
R
TWO-SPEED
R
C
Y2
Y1
L
A97452
TWO-SPEED
R
C
Y2
Y1
L
A97457