6200 Troup Highway
Tyler, TX 75707
www.trane.com
www.americanstandardair.com
The manufacturer has a policy of continuous product and product
data improvement and it reserves the right to change design and
specifications without notice.
© Trane U.S. Inc. 2010
Section 20. Checkout Procedures
20.1 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. Be sure that the correct airflow setting is used.
(Indoor Blower Motor). ................................................. [ ]
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.
Freeze Protection
1. The EVC control has the ability to sense when the coil is
beginning to ice. When this event occurs, the contacts to
the Yo circuit will open and de-energize the OD unit.
2. The indoor blower motor will continue to run to aid in de-
frosting the coil. After the coil has sufficiently defrosted,
the Yo contacts will close and cooling operation will
begin again.
Fan Off Delay
1. The TDR has a dip switch that can enable a 90 second
fan off delay anytime a fan call is made from the comfort
control. The factory default is ON. To disable the delay,
turn power off to the unit, turn the dip switch to the off
position and turn power back on to the unit.
