Wiring Schematic - Two Stage Heat - American Standard 50A65-475 Manual

Wiring Schematic
Two Stage Heat (White-Rodgers 50M61-495 Series Integrated Furnace Control)
120 VOLT, 60 HZ., 1 PH.
POWER SUPPLY
PER LOCAL CODES
1
2
N H
3
4
5
DOOR
6
SWITCH
7
8
9
0
q
w
IGNITOR
e
r
t
y
120V
u
TNS
i
24V
o
p
a
s
GAS VALVE
d
3
f
2
g
1
BI-METAL
h
FLAME
ROLL-OUT TCO
j
k
l
;
BI-METAL FLAME
z
ROLL-OUT
1
1 SOME MODELS MAY HAVE A FUSE LINK HERE
OR A NON-RESETABLE BI-METAL SWITCH.
GND
CF
GND
I.D.
BLOWER
MTR.
GND
WH
SINI
GND
WH
PRESSURE SWITCH
2ND STAGE
HI
BR/1
B/C
LO
PRESSURE SWITCH
1ST STAGE
TCO
YL/2 YL/1
YL/3
1 TCO-B
SENSOR
BK
"A"
"B"
"C"
BK/1
BK/4
BK/2
OPTIONAL
BK/3
BK/5
BK/6
IND.
MTR.
RD/6
WH/6
WH/5
WH/1
WH/4
WH
BL
RD
BR
OR/1
BL/1
RD/1
10
OR 12
YL
YL/5 11
WH
FLAME
BK/TWIN
GND
15
50M51-495
INTEGRATED FURNACE CONTROL
COOL
PARK
HEAT LO
HEAT HI
HOT 120VAC
LINE
XFMR
EAC
HUM
1 IGN 70 – 80 VAC
2 IND HI
HOT 120 VAC
3 IND LO
4 IND N
5 IGN N
LINE N
NEUTRAL
120VAC
XFMR N
CIR N
EAC N
HUM N
9 TR
DIP
5 TH
SWITCH
4 GND
2 PS2
1 2 3
1 MVH
8 MVCOM
7 MVL
DIAGNOSTIC
LED
GND
PSI
6 HLI
HLO
3 FP
W1 W2 R G B Y
TO THERMOSTAT
ON
OFF