| Features and Benefits 
Unit control modue for 130 to
400-ton air-cooled chillers.
Clear Language Display Keypad (UCM)
-- Air-Cooled, 70 to 125 tons
Trouble-Free Installation,
Start-Up and Operation
Adaptive Control™ Microprocessor
The air-cooled Series RŪ chiller employs the most advanced microprocessor control
available on any packaged water chiller in the
marketplace and features the Adaptive Control microprocessor. So what is the Adaptive
Control microprocessor? Adaptive Control means the Unit
Control Module (UCM) directly senses the control variables that govern operation of
the chiller : motor current draw, evaporator
temperature, condenser temperature, etc. When any
of the variables approaches a limit condition where the unit may be damaged or
shut down on a safety, the UCM takes corrective action
to avoid shutdown and keep the chiller operating. It does this through combined
actions of compressor slide valve modulation,
electronic expansion valve modulation and fan staging.
Additionally, the UCM optimizes total unit power consumption during normal operating conditions. No other chiller control
system in the marketplace duplicates this performance.
The End Of Nuisance Trip-Outs And Unnecessary Service Calls?
Unnecessary service calls and unhappy tenants are avoided. The unit does not nuisance trip or unnecessarily shut down. Only
when the UCM has exhausted the corrective actions it
can take and the unit is still violating an operating limit will the unit shut down. CONTROLS ON OTHER CHILLERS TYPICALLY SHUT DOWN
THE CHILLER, QUITE PROBABLY JUST WHEN IT IS NEEDED THE MOST.
For example: A typical
five-year-old chiller with dirty coils might trip-out
on high pressure cutout on a 100 F day in August. A hot
day is just when comfort cooling is needed the most. In contrast, the air-cooled Series
R chiller with an Adaptive Control microprocessor will
stage fans on, modulate electronic expansion valve, and modulate slide valve as it approaches a high pressure cutout. Thereby
KEEPING THE CHILLER ON-LINE JUST WHEN YOU NEED IT
THE MOST. |
