Ingersoll-Rand TAM7A0A24H21EA, Service Facts

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8 TAM7-SF-2E-EN
Unit Test Mode
Unit Test Mode will exit if any demand is given to the
unit.
To enter Unit Test Mode:
1. Set System Switch on comfort control to Off.
2. Cycle power to the unit, wait 5 seconds.
3. Within thirty seconds, press and hold the Unit Test
Button for 1–2 seconds.
Sequence of Unit Test Mode
1. EVC drives the EEV motor to the 1st stage position
for 5 seconds.
2. EVC drives the EEV motor to the 2nd stage position
for 5 seconds.
3. AFC energizes the blower at 50% and then
continues to ramp until it reaches 100% cooling
airflow. Humidifier contacts close when the blower
starts.
4. EHC energizes the W1, W2, and W3 circuit relay(s)
for 5 seconds in 5 second intervals.
5. All relays de-energize and the blower shuts off
after five seconds.
If a fault occurs during the Unit Test Mode, the LED will
flash the code and continue the test.
Fault Reporting
This unit stores the last four faults that have occurred.
Each device will report the last four faults after each
power cycle of the unit. See the Fault Table section in
the Service Facts for a list of fault codes.
Clearing Faults
To clear the last four faults of all control boards:
1. Press and hold the Unit Test Button for 10-12
seconds.
2. Release the Unit Test button and "wait" 5 seconds.
3. Cycle 230VAC power to the unit. (the blower panel
can be removed to achieve this)
P b
FAULT
UNIT
48 33
32
17
16 1
64
49
B K J umpe r
T EST
T R ANE U.S. INC.
VD
D
P
G
D
M
C
LR
V
SS
P
G
C
3.
3V
S
C
L
SD
A
G
N
D
HUM
P ART NO. LABEL
BAR CODE
1
2
3
4
5
S TATUS
Yo J umpe r
+13.8V
C60
C59
R57 R58
R64 R65
R76 R78
S 3
R110
R41
R68
C40
R
9
3
R109
R12
R55
R23
R20
R49
R13
R14
D23
D19
D18
C46
C39
C6
C23
R80
R71
R67
R52
R75
R72
C41
R61
Q 6
Q 7
R1
R33
R34
J 4
Q 1
X1
U4
U3
TZ2
T2
T1
R99
R98
R97
R
6
0
R96
R95
R21
R91
R
8
7
R
8
8
R70
R86
R83
R81
R66
R79
R77
R54
R103
R106
R4
R104
R
5
1
R53
R47
R42
R39
R82
R37
R
3
5
R
3
1
R74
R89
R25 R18
R19
R10
R9
R8
R3
R2
R5
R7
Q 8
MO V1
L2
L3
K1
J 3
J 6
J 9
D36
D35
D1
D
2
2
D29
D
2
5
D24
D7 D4
D2
D28
C57
C54
C51
C49
C48
C47 C52
C43
C42
C36
C35
C
3
4
C31
C30 C29
C7
C3
C2
C1
U1
C58
R105
C50
U2
R24 R17
D6
D3
R NET 1
R NET 2
R73
1
J 8
Yo
R
B
O
Y1
J 1
W2
W1
R63
R62 R56
D21
D20
C32 C33
R38 R36
R16
R15
R32
R11 R28
R27 R26
D13
D12
D5
D11
D10
C24
C25
C4 C5 C16 C17 D8
R50
R45
R85
R84
D16
D15
D31
D30
C26 C27
C44 C45
D32
D33
R94
R100
R101
R
1
0
7
K2
R
6
C53
C
2
2
C
1
9
C
1
5
C
1
2
C
9
C
8
C
1
1
C
1
4
C
1
8
C
2
1
D26
R69
C37
C38
L
1
R102
D27
R40
R46
R43
Q 3
Q 5
1
1
HP
OUTDOOR
Unit Te s t Bu tto n
Airflo w Co n tro l (AFC)