Setting DEFAULT PARAMETERS
Press the PRG button at
P
chiller start-up to set default parameters. Default parameters are based on
FACTORY-set parameters and refer to DIRECT and USER parameters only. When the procedure is over,
the display will show dF to confirm the operation.
Button
Status of the unit
Effect after pressing the button
SEL
Normal operating condition (display
shows the temperature of sensor B1)
List of codes
After 5” DIRECT parameters apear
Displays value
PRG
Normal operating condition
List of codes
Displays values
Buzzer sound
After 5” password for USER parameters
Stores parameters in eeprom
Stores parameters in eeprom
Silences the buzzer
Normal operating condition
List of codes
Displays values
After 5” enables/inhibits Cooling mode
Displays the codes of the parameters
Increase values
Normal operating condition
List of codes
Displays values
After 5” enables/inhibits Heating mode
Displays the codes of the parameters
Decrease values
PRG + SEL
Normal operating condition
After 5” password for FACTORY parameters
SEL +
Normal operating condition
After 5” forces a manual defrosting cycle
+
Normal operating condition
Hour counter is shown
After 5” manual alarm reset
hour counter zeroes down immediately
PRG
At start up
Default parameters
PRG +
At start up
Copies key on the unit’s eeprom
PRG +
At start up
Copies unit’s eeprom on the key
8
Summary of Contents for M4AC040A
Page 33: ...Outlines and Dimensions Model MAC040 050 058A AR M4AC040 050 058A AR Bottom Compartment 32...
Page 34: ...Model MAC075 100 125B BR 33...
Page 35: ...Top Compartment Bottom Compartment 34...
Page 54: ...Refrigerant Circuit Diagram Model M4AC075BRE 100BRE 125BRE 53...
Page 59: ...2004 McQuay International 1 800 432 1342 www mcquay com ISO 9002 REGISTERED...