Integrated Furnace Control - Cnt02536 - American Standard 50A65-475 Manual

Integrated Furnace Control – CNT02536
LINE-N
CIR-N
Line Voltage Neutral
1/4" Spade Terminals
EAC-N
HUM-N
1. Transformer Neutral
2. Ignitor Neutral
1
3. Inducer Neutral
2
4. Air Cleaner Hot
5. Ignitor Hot
3
6. Humidifier Hot
XFMR-H
IND-H
Line Voltage Hot
1/4" Spade Terminals
CIR-H
LINE-H
R13
R18
R12
R17
CR22
O5
RV3
R87
R77
K5 R72
E8
R94
CR21
R93
E7
C4
O6
E6
K6
E5
R52
O4
CR11
CR19
O7
K4
R73
R71 R78
4
R29
5
R75
6
R74
U4
E13 O12
CR14
R92
RV2
O2
K2
R53
C15
E1
O3
E2 CR13
E3
R31
K3
C28
E4
RV1 +
CR12
O1
R1
K1
R16
R14
R28
R19
R15
R21
D52 DS4
G W2 W1 B O
E12
SPK1
Switches 1, 2, 3 & 4 =
Cooling Airflow
Switches 5 & 6 =
Time Delays or Ramp
Switches 7 & 8 =
Heating Airflow
See Service Facts
For Full Details
R68
R68
R88
R65
C5
C1
R67
R33
R51
01
C8
Y1
O8
CR17
R35
R58
R48
CR18
C6
C13
R66
CR23 C14
DS1
C12
R63
U3
C9
R54
R85
U2
R56
R86 R79
R55
R89
VR1
R24
R3
R98
R4
C17
R91
C21
R78
C22
O11 O18
C11
R32
R44
R38
R47
R8
R25
R37
R9
R38
R6
R36
R64
R18 R46
CR25
O9
R45
R28
R86 R26
CR9
R49
R76
R7
C10 CR10
R22
R27
CR7
CR8
R5 NE1
CR6
CR1
CR5
CR2
ON
CR3
S1
CR4 R58
1 2 3 4 5 6 7 8
DS5
R63
W1
JUMPER
Y YLO BK R
E11 TL1
SPK2
8 7 6 5
16 15 14 13 12
27
Plug # E10
C23
1. RPM/SOA Vent Motor Report
R62
Line Out
2. +13 V.D.C. Power
CR28
3. Ground
R69
CR24 4. Inducer Low Speed On/Off Line
1 V.D.C. On, 11 V.D.C. Off
R23
R81
5. Inducer High Speed On/Off Line
C7
1 V.D.C. On, 11 V.D.C. Off
013
O14
R82
R34
1
W3
2
RPM
DS6
E10
R11
C24
C18 3
C3
4
C2
R61
5
R2
R59
R43
S3
R48
R42
1
Switch 3
2
R34 R41 3
Heat Off Delay
4
C19
R1
Plug # E9
E9
1. Main Valve High
9 3
6
Second Stage
8 5 2
2. Main Valve Common
3. High Limit In
7 4 1
4. High Limit Out
5. 24 VAC Transformer
Common Side
DS3
S2
W2
6. Main Valve Low
CFM
TEST POINT
First Stage
7. 24 VAC Transformer
Hot Side
8. Ground
9. Flame Sense Probe
E14
4 3 2 1
Plug # P1
11 10 9
Plug # E10