Operating Principles
52
RTHD-SVX01K-EN
copper with lands at all tube sheets. All tube sheets are
made of carbon steel. Tubes are mechanically expanded
into tube sheets and mechanically fastened to tube
supports. Evaporator tubes are 1.0- inch (25.4 mm)
diameter and condenser tubes are 0.75-inch (19.05 mm)
diameter. All tubes can be individually replaced.
Shells are carbon steel plate. The evaporator and
condenser are designed, tested, and stamped in
accordance with ASME Code for refrigerant-side/ working-
side pressure of 200 psig (13.8 bars).
All water pass arrangements are available with grooved
connections (150 or 300 psig waterside working pressure).
All connections may be either right- or left-handed.
Waterside shall be hydrostatically tested at 1.5X design
working pressure.
Oil Management
The unit is configured with an oil management system that
ensures proper oil circulation throughout the unit. The key
components of the system include an oil separator, oil
filter, oil sump and oil sump heater. An optional oil cooler
is installed when the unit is used for high condensing
temperature or low evaporator temperature conditions.
Unit-Mounted Starter
A unit-mounted starter and control panel is provided on
every chiller. Microprocessor-based unit control modules
(Symbio™ 800) provide for accurate chilled water control
as well as monitoring, protection and adaptive limit
functions. The “adaptive” nature of the controls
intelligently prevents the chiller from operating outside of
its limits, or compensates for unusual operating
conditions, while keeping the chiller running rather than
simply tripping due to a safety concern. When problems
do occur, diagnostic messages assist the operator in
troubleshooting.
Содержание Optimus RTHD
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