Start-up and Shut-dow n
CVHH-SVX001A-EN
81
Control Panel Devices and Unit-
M ounted Devices
Unit Control Panel
Safety and operating controls are housed in the unit
control panel, the starter panel, and the purge control
panel. The control panel operator interface and m ain
processor is called Tracer AdaptiView and is located on an
adjustable arm connected to the base of the control panel.
For m ore inform ation about operating Tracer AdaptiView,
refer to Tracer AdaptiView ™ Display for Water-Cooled
CenTraVac™ Chillers Operations Guide (CTV-SVU01D-EN,
or the m ost recent version).
The control panel houses several other controls m odules
called panel m ounted LLID (Low Level Intelligent Device),
pow er supply, term inal block, fuse, circuit breakers, and
transform er. The IPC (Interprocessor com m unication) bus
allow s the com m unications betw een LLIDs and the m ain
processor. Unit m ounted devices are called fram e
m ounted LLIDs and can be tem perature sensors or
pressure transducers. These and other functional sw itches
provide analog and binary inputs to the control system .
User-Defined Language Support
Tracer AdaptiView is capable of displaying English text or
any of tw enty-four other languages. Sw itching languages
is sim ply accom plished from a language settings m enu.
Unit Start-up and Shut-dow n
Procedures
N ot e: Graphic labels (show n above) are used for CE
application only.
Im port ant :
•
Before servicing, disconnect all pow er sources and
allow at least 30 m inutes for capacitors to discharge.
•
All electrical enclosures—unit or rem ote—are IP2X.
WARNING
Live Electrical Components!
Failure to follow all electrical safety precautions w hen
exposed to live electrical components could result in
death or serious injury. During installation, testing,
servicing and troubleshooting of this product, it may be
necessary to work w ith live electrical components.
Have a qualified licensed electrician or other individual
w ho has been properly trained in handling live
electrical components perform these tasks.
WARNING
Toxic Hazards!
Do not allow the chiller to increase above 54.4°C (130°F)
in temperature w hile unit is off. Failure to prevent high
chiller temperature w ill cause the inside pressure to
rise:
•
Do not run evaporator water pump longer than
30 minutes after the chiller is shut dow n.
•
Ensure that the evaporator is isolated from the hot
w ater loop before changeover to heating mode.
The rupture disk is designed to relieve and discharge
the refrigerant from the unit if the pressure in the
evaporator exceeds 344.7 kPag (50 psig). A significant
release of refrigerant into a confined space due to a
rupture disk failure could displace available oxygen to
breathe and cause possible asphyxiation. Should a
rupture disk fail, evacuate the area immediately and
contact the appropriate rescue or response authority.
Failure to follow instructions could result in death or
serious injury.
X39003892001A
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