Power Supply Wiring
52
CVHH-SVX001A-EN
•
When installing the pow er supply conduit, ensure that
the position of the conduit does not interfere w ith the
serviceability of any of the unit com ponents, or w ith
structural m em bers and equipm ent. Ensure that the
conduit is long enough to sim plify any servicing that
m ay be necessary in the future (e.g., starter).
•
Electrical w ire torque specifications—follow starter
m anufacturer ’s torque specifications.
Circuit Breakers and Fused
Disconnects
Any field supplied circuit breaker or fused disconnect
installed in pow er supplied to the chiller m ust be sized in
com pliance w ith NEC or local guidelines.
CE for Control Power Transformer (CPTR)
Option
Im port ant :
For the CPTR (Control Pow er Transform er)
option, chiller m ounted/UPS pow er, the
custom er needs to ensure that the supply is
NOT taken from public low voltage
supplies, and that a dedicated clean source
of private pow er supply is used for chiller
m ounted CPTR option w hen a CE chiller is
selected. This also includes w hen CPTR
option is standard such as in custom er-
supplied starters and rem ote-m ounted
m edium voltage AFDs.
All custom er w iring, including pow er w iring to starters/
drives/CPTR Option/UPS shore pow er, needs to be
separated: 24–27 Vdc, 110–120 Vac, and 380–600 Vac each
need to be in separate conduit runs.
For 110/120 V custom er w iring, including m ain pow er
supply to CPTR option, it is required that the custom er
provides som e sort of surge protection ahead of it, and all
custom er w iring needs to be run in flexible m etal conduit
and grounded at both ends. Any ethernet cables being
used by custom er to interface w ith the Trane chiller m ust
be shielded ethernet cabling.
The custom er is required to provide an overcurrent device
upstream of the CPTR option in accordance w ith IEC
standards and/or any applicable local and national codes.
The custom er is required to follow all local, national, and/
or IEC codes for installation.
Service personnel m ust use proper PPE for servicing and
should also use proper lockout/tagout procedures during
servicing. The custom er should also disconnect the m ain
supply disconnecting device upstream of the starter or
drive first before perform ing any service on any part of the
chiller, including the CPTR option, related controls, and oil
pum p m otor circuits. In addition, service personnel should
first disconnect the supply disconnecting device upstream
of the CPTR option before perform ing any service on the
CPTR option or its related circuits. Lock the CPTR option
enclosure panel disconnect handle before servicing to
prevent accidental pulling of the disconnect handle.
CE for Starter or Drive
Im port ant :
•
All Trane-supplied rem ote starters and drives used in
conjunction w ith CVHH or CDHH Trane chillers w ill be
CE-com pliant per EU directives and IEC standards to
w hich the CVHH and CDHH chillers also com ply. All
Trane-supplied rem ote starters and drives m ust be
used w ith CVHH or CDHH Trane chillers to ensure CE
com pliance.
•
For rem ote starters and drives: Basic details are
provided on rem ote starter/drive nam eplate. Please
refer to the chiller unit nam eplate located on the chiller
m ounted control panel for details on w ire sizing
(m inim um current am pacity) and overcurrent
protection sizing upstream of the unit (m axim um
overcurrent protection).
•
Always refer to as-built schem atic w iring diagram s and
the chiller Installation, Operation, and M aintenance
m anual located inside the chiller m ounted control
panel (regardless of unit or rem ote-m ounted starter or
drive) for details on w iring, safety, installation, and
warnings.
•
Refer to drive-specific Installation, Operation, and
M aintenance m anuals for drive and option installation
specifics for unit- and rem ote-m ounted adaptive
frequency drives.
Unit-M ounted Starters
Remote-M ounted Starters
L3
G
L2 L1
L3
G
L2 L1
L3 L2 L1 G
L3 L2 L1 G L3 L2 L1 G
L2
L3
G
L2
L1
L3
G
L2
L1
L3
L1
G
L3
L2
L1
G
L3
L2
L1
G
Содержание CVHH
Страница 110: ......
