Electrical Connections - Trane CLCH Installation Operation & Maintenance

4.7 Water Coils
The air venting of the system should not
be carried out through the coil. Air venting
should be allowed for in the pipework and
any coil vent should be for the sole
purposes of venting the coil itself. When
incoming air temperature may be colder
than 0°C, do not modulate the water flow
as this may cause freezing and damage
to the coil.
4.7.1. Steam Coils
Overhead condensate-return systems
should not be used; allow for vacuum
breakers as close as possible to the coil.
Include a float or thermodynamic trap on
all steam coils (following trap
manufacturer recommendations).
CORRECT TRAPPING IS VERY
IMPORTANT
IMPORTANT. FAILURE TO PROPERLY
REMOVE CONDENSATE WILL
RESULT IN WATER HAMMER AND
POSSIBLE COIL FAILURE.
4.7.2. Refrigerant Coils
Refrigerant pipework installation requires
specialist design and trained refrigeration
engineers for correct installation.
If you have any queries, please contact
your local Trane sales office.
14
4. Assembly and
Installation

4.8 Electrical Connections

The electrical work must be carried out in
accordance with all international, national,
and local regulations.
Electrical connections passing through
the casing to the fan motor should be
carried out in a flexible conduit.
Cables passing through the casing must
be made with a gland or grommet.
All wiring to other accessories must be
carried out in the same manner.
PLEASE REFER TO THE UNIT
MOUNTED CONTROLS IOM.
Motor connection details are contained in
the cover of the motor terminal box.
If you have any queries, please contact
your local Trane sales office.
4.8.1. Duct Connections
To reduce noise transmission, the fitting
of an intermediate flexible connection of
at least 140 mm width, between the
ducting and the unit flange, is
recommended. This should be
unstressed when initially positioned.
Compliance with the Codes of Practice in
duct assembly and acoustic layout are
essential, to ensure the best possible
performance of the unit whilst avoiding
excessive pressure loss in the duct
system and minimizing airstream noise.
4.8.2. Motor Connection
Safety measures need to be taken on site
against overload, short circuit, high or low
voltage, and excessively high ambient
temperatures.
Special care must be taken in the
connection of motors, especially if two-
speed motors are supplied with the unit.
The connection must be carried out in
accordance with the nameplate and the
wiring diagrams as shown on the inside
of the motor terminal box.
Following the connection of the motor, a
test run must be carried out in order to
check motor performance and rotational
direction.
Please see the section on commissioning
procedures for additional information.
CLCH-SVX05A-GB