Page 10 - IOM BASIC CLIMATIC CONTROLLER
SET POINT THERMOSTAT FUNCTION DESCRIPTION
LEVEL 1
DISPLAY
LEVEL 2
LEVEL 3
Visualizes:
Inlet water temperature
Active alarms
SET POINT
Cooling set point
Set point value
See page 8, for adjustment of set point of the system
The water temperature is thermostatically controlled
via a set point and a tolerance range (differential)
The operation of these parameters is shown in the
following diagram.
COOLING OPERATING MODE
Operation with one compressor is as shown in the
diagram taking into account that the temperature above
which the controller takes over is the inlet water
temperature. When this temperature exceeds the set
point + tolerance range (differential) the compressor
starts to produce cool water. When inlet water
temperature gets bellow the set point the compressor
stops. For example: if set point = 10°C and tolerance
range (differential)= 2°C, the compressor will operate
when the return water temperature exceeds 10°C and
switch off when it returns at 10ºC, and turn on again
when the temperature reaches 12ºC.
COMPRESSOR
COMPRESSOR
STEP 1
STEP 2
COMPRESSOR
COMPRESSOR
COMPRESSOR
COMPRESSOR
SET POINT
SET POINT + SET POINT
Differential
UNITS WITH 1 COMPRESSORS
UNITS WITH 2 COMPRESSORS
