Installation and Maintenance Manual

ECM Overview and Setup
72 UNT-SVX07D-EN
Fan Speed Response Verification
1. After performing controller specific commissioning,
observe the display on the ECM engine board with the
power on, to the unit. The ECM engine display should
display a looping status indicator as follows:
→→→→→
→→
→→
Notes:
• The
 indicator is unit-specific and may indicate
“Off” at this point; refer to thermistor function for more
information.
• A representative fan speed of “1080” rpm are shown in
the example below. Each unit is factory-configured
differently and will have different settings for different
fan speeds.
2. While the unit remains on, exercise the fan controls on
the unit, either directly or indirectly through request for
unit heat/cool. Observe the fan spinning, and then
observe the fan display on the ECM engine board. It
should display a looping status indicator as follows:
For a size 200, 300, 400, 600, or 80
0 unit (using typical
unit operating fan speeds):
→→→→
→→→
→→
For a size 1000 or 1200 unit (using typical unit
operating fan speeds):
→→→→
→→→
→→
Note: The
 indicator is unit-specific and may
indicate “Off” at this point; refer to thermistor
function for more information.
3. OP
TIONAL:
While the fan is running, if practical, change the fan
speeds a
nd observe the display temporarily indicate:

Exercise all fan speeds to ensure positive unit
response and to validate any field wiring.
Congratulations! Your new Trane BLDC Engine/Motor
system is performing properly.
Protect Funct
 
This function protects settings on the
board that affect the safety of the electric
heat system.
Do NOT change this setting. This setting locks
out the following parameters from being
changed, for safe operation of the unit.













Rmp dft (auto rst)
 
This function shortens the ramps for faster
unit commissioning and auto-resets to off
after approximately 15 minutes of power-
on operation.
To aid in commissioning of the unit, for
approximately 10–15 minutes, the ramps will be
shortened to quickly observe proper unit
behavior and response to speeds.
Soft Rev
 .
Displays the software version.
Table 18. Configuration settings of the ECM engine board (continued)
Description on
Unit Label
User
Interface
Name
Typical
User
Interface
Value Description
Notes:
These notes are provided for reference
only, and the ECM engine label must be
used as the ultimate guide for setting up an
engine board on specific units.
UNT-SVX07_-EN.book Page 72 Friday, April 27, 2012 9:40 AM