Models 3.2 - 13.2, controller
µ
chiller
Blue Box - Page 57
Figure 15
Figure 17
Figure 16
6 UNIT WITH
m
CHILLER MICROPROCESSOR (models from 3.2 to 13.2)
6.1 INTRODUCTION
“
m
CHILLER” is an electronic microprocessor system designed to control all the unit’s functions.
The terminal is equipped with five LEDs indicating the operating status of the machine (summer/winter), the
compressor status (On/Off) and indication of the compressors/pump hour counter after the first 100 hours of
operation. An internal beeper (which can be inhibited by means of a microswitch or a parameter) sounds to warn
of machine operating anomalies.
6.1.1 Display
The display comprises three digits with automatic display of the decimal point. During normal operation the
display shows the value of the evaporator inlet water temperature.
“
m
CHILLER” can be connected to a computer, by means of an optional electronic board, making available
remote supervision and telediagnostic services for complete management, supervision and diagnostics of the
systems from a remote location.
6.1.2 Machine status information
Machine status information is shown by five LEDs on the remote control display (figure 16).
6.1.3 Keypad
The keypad allows machine operating parameters to be programmed. The wall-mounted version features an
extended number of keys to facilitate use. The function of each key is illustrated on the following pages.
Summary of Contents for SIGMA 2002
Page 2: ......
Page 99: ...Blue Box 93 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 3 2 13 2...
Page 100: ...Blue Box 94 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 SIGMA 2002 DC MODELS 14 4 26 4...
Page 101: ...Blue Box 95 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 3 2 8 2 14 4 16 4...
Page 102: ...Blue Box 96 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 HP MODELS 9 2 13 2 18 4 26 4...
Page 103: ...Blue Box 97 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE SIGMA 2002 LE DC MODELS 3 2 26 4...
Page 104: ...Blue Box 98 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LE HP MODELS 3 2 26 4...
Page 105: ...Blue Box 99 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 3 2 13 2...
Page 106: ...Blue Box 100 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC MODELS 14 4 26 4...
Page 107: ...Blue Box 101 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 3 2 13 2...
Page 108: ...Blue Box 102 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC HP MODELS 14 4 26 4...
Page 109: ...Blue Box 103 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 3 2 13 2...
Page 110: ...Blue Box 104 REFRIGERANT CIRCUIT DIAGRAM SIGMA 2002 LC DC MODELS 14 4 26 4...
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