Installation and Maintenance Manual

UV-SVN02C-EN 43
ECM Overview and Setup
Overview
This section addresses changes to unit ventilators,
integrating new Trane Brushless DC motors and
controllers. This exciting new series delivers outstanding
comfort, safety, and performance with greatly reduced
energy consumption compared to traditional units with
permanent split capacitance AC motors.
The new series of units will provide a long service life with
proper installation and operation. The new system
provides a high degree of flexibility and configurability,
but the simplicity of customized factory configuration
appropriate to most installations.
Very little intervention is needed by service and
installation personnel in most applications; however,
installers must read through the entire document before
beginning installation of the new equipment.
This literature focuses on unit motors and controls,
including three new circuit modules developed
specifically for this series.
General Information
There are four primary components that enable the
technology on your product:
1. Trane B LDC Mo tor
2. ECM Engine Board
3. Adapter Board
4. CSTI Adapter Board
The motors and modules are co
mbined as systems, and
cannot work without each other.
Trane BLDC Motor
• The BLDC motor has integrated electronics, overload
protection and short circuit protection. The motor
contains no user-serviceable components inside.
• The motor mates to the unit electrically via a single
plug that contains both the operating voltage and the
control signals that are needed for correct operation.
• The BLDC motor comes a single shaf
t configuration for
all horizontal unit ventilator sizes (075, 100, 125, 150,
200).
• The BLDC motor has two voltage variations,
115/208-230V and 277V. Units with three-phase and
neutral
have motors wired to the L-N (as opposed to
L-L). The 115/208-230V is configured for voltage by use
of an external jumper. If the jumper is present the
motor will be configured for use with 115V. The jumper
must NOT be present for use with 208-230V.
ECM Engine Controller
• The ECM engine controls and reports the performance
of up to two Trane BLDC motors.
• The engine also co-ordinates the
operation of the fan
in response to electric heat behavior, and electric heat
behavior in response to hydronic heat behavior and
fan behavior.
• The engine incorporates a user interface that allows
a
djustment of certain unit parameters and provides
constant feedback on motor operation.
• The engine integrates service and troubleshooting
too
ls, including high-precision tachometers, fan
status, and electric heat-enable indicators.
Figure 39. Trane BLDC motor
1. High Efficiency Brushless DC (BLDC) Motor Core
2. Motor Base Housing Potted Electronics Package
1
2
NOTICE:
Equipment Damage!
The motor harness attached to the single plug to which
the motor mates contains the very important motor
voltage jumper and should not be modified or
substituted. Failure to follow this instruction could
result in equipment damage.
Figure 40. ECM engine controller
Note: Display and Menu/
Enter, Increase, and
Decrease Buttons
UV-SVN02_-EN.book Page 43 Thursday, January 24, 2013 4:48 PM