6200 Troup Highway
Tyler, TX 75707
www.trane.com
The manufacturer has a policy of continuous product and product data improve-
ment and it reserves the right to change design and specifications without notice.
© 2012 Trane
Section 19. Checkout Procedures
19.1 Operational And Checkout Procedures
CHECKOUT PrOCEDUrE
After installation has been completed, it is recommended that the entire system be checked against the following list:
1. Be sure unit suspension (if used) is secure and that there
are no tools or loose debris in or around or on top of the
unit. .............................................................................. [ ]
2. Properly insulate suction lines and fittings. .................. [ ]
3. Properly secure and isolate all refrigerant lines. .......... [ ]
4. Verify that all electrical connections are tight. .............. [ ]
5. Check all duct outlets; they must be open and unrestrict-
ed. ................................................................................ [ ]
6. Check drain lines and be sure all joints are tight.
........ [ ]
7. Be sure the return air filter is installed. ......................... [ ]
8. Verify that all dip switches have been set correctly for your
application. .................................................................. [ ]
9. Operate complete system in each mode to
verify proper performance. Verify operation of supplemen-
tary electric heater. ....................................................... [ ]
Final phases of this installation are the unit Operational and Checkout Procedures. To obtain proper performance,
all units must be operated and charge adjustments made in accordance with procedures found in the Service
Facts of the Outdoor Unit.
Pb
FAULT
UNIT
48
33
32
17
16
1
64
49
B K Jumper
TEST
TRANE U.S. INC.
VD
D
PG
D
MC
LR
VS
S
PG
C
3.3
V
SC
L
SD
A
GN
D
HUM
PART NO. LABEL
BAR CODE
12
34
5
STATUS
Yo Jumper
+13.8V
C60
C59
R57
R58
R64
R65
R76
R78
S3
R110
R41
R68
C40
R9
3
R109
R12
R55
R23
R20
R49
R13
R14
D23
D19
D18
C46
C39
C6
C23
R80
R71
R67
R52
R75
R72
C41
R61
Q6
Q7
R1
R33
R34
J4
Q1
X1
U4
U3
TZ2
T2
T1
R99
R98
R97
R6
0
R96
R95
R21
R91
R8
7
R8
8
R70
R86
R83
R81
R66
R79
R77
R54
R103
R106
R4
R104
R5
1
R5
R47
R42
R39
R82
R37
R3
5
R3
1
R74
R89
R25
R18
R19
R10
R9
R8
R3
R2
R5
R7
Q8
MOV1
L2
L3
K1
J3
J6
J9
D36
D35
D1
D22
D29
D2
5
D24
D7
D4
D2
D28
C57
C54
C51
C49
C48
C47
C52
C43
C42
C36
C35
C3
4
C31
C30
C29
C7
C3
C2
C1
U1
C58
R105
C50
U2
R24
R17
D6
D3
R NET
R NET 2
R73
1
J8
Yo
R
B
O
Y1
J1
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
10
7
K2
R
6
C53
C2
2
C1
9
C
15
C
12
C9
C8
C1
1
C1
4
C1
8
C2
1
D26
R69
C37
C38
L1
R102
D27
R40
R46
R43
Q3
Q
1
1
HP
OU
Airflow Control (AFC)
Unit Test Button
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)
