7. Materiales y métodos
7.6 Análisis estadístico
Some units on special plants can supply cold water at two different temperatures, usually, but not necessarily, one positive and one negative.
The two operational values in “set”, are preset by the manufacturer, according to the project requirements, but can be modified within the established limits.
Operational settings may be changed automatically by external input or managed through the keyboard.
Operational settings change mode is set by the manufacturer and can only be modified by a technician.
Operational settings and change mode settings, when this can be keyed in, are accessed through the “Set” branch mask.
5 ALARM FORMS
[OD3]Any malfunction detected by the control enables an alarm form.
Enabled alarm forms only appear after the “alarm” button is pressed.
Press the “alarm” button once to deactivate the buzzer; press the button again and the enabled alarm form will appear; if there are no enabled alarms, the “ALL_1” form will appear. Press the button a third time to cancel any alarms.
If you remain within an alarm form for ten minutes without pressing any buttons, the display will take you back to the menu’s main page.
5.1.1 Summary of alarm forms
ALL_1 No Alarm
This form appears when you press the “alarm” button twice and no alarms are enabled.
ALL_2 Flow Switch Alarm
In accordance with the various delays, this form appears when the water flow switch’s digital input is open. It’s intervention does not enable start-up of the compressors while any pumps remain active. The alarm can only be cancelled manually using the keyboard.
ALL_3 Pump 1 Overload
This form appears instantly when the input of the thermal overload relay of pump 1 is opened.
Alarm intervention causes the pump to stop and enabling of the spare pump, if available. If there isn’t a spare pump, the unit will be blocked. The alarm can only be cancelled manually using the keyboard.
ALL_4 Pump 2 Overload
This form appears instantly when the input of the thermal overload relay of pump 2 is opened.
Alarm intervention causes pump 2 to stop and starts pump 1. If pump 1 is not available, the unit will be blocked. The alarm can only be cancelled manually using the keyboard.
ALL_5
High Pressure Compressor 1
ALL_6
High Pressure Compressor 2
This form will appear if the digital input of the high pressure switch of circuit 2 is open or if the pressure detected by the high pressure transducer of circuit 2 exceeds the alarm value and, with the set procedure, causes the block.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_7
High Pressure Compressor 3
This form will appear if the digital input of the high pressure switch of circuit 3 is open or if the pressure detected by the high pressure transducer of circuit 3 exceeds the alarm value and, with the set procedure, causes the block.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_8
High Pressure Compressor 4
This form will appear if the digital input of the high pressure switch of circuit 4 is open or if the pressure detected by the high pressure transducer of circuit 4 exceeds the alarm value and, with the set procedure, causes the block.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_11 Low Pressure Compressor 1
This form will appear if the pressure read by the low pressure transducer of circuit 1 is lower than the values of lp1 or lp2, depending on the operation status. The alarm will be delayed, depending on the case and set procedure.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_12 Low Pressure Compressor 2
This form will appear if the pressure read by the low pressure transducer of circuit 2 is lower than the values of lp1 or lp2, depending on the operation status. The alarm will be delayed, depending on the case and set procedure.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_13 Low Pressure Compressor 3
This form will appear if the pressure read by the low pressure transducer of circuit 3 is lower than the values of lp1 or lp2, depending on the operation status. The alarm will be delayed, depending on the case and set procedure.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_14 Low Pressure Compressor 4
This form will appear if the pressure read by the low pressure transducer of circuit 4 is lower than the values of lp1 or lp2, depending on the operation status. The alarm will be delayed, depending on the case and set procedure.
“Circuit” will appear instead of “Compressor” for tandem units.
ALL_17 Compressor 1 Oil Differential Pressure Switch
This form will appear when the difference between the oil delivery pressure and suction pressure is less than the set differential.
After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.
ALL_18 Compressor 2 Oil Differential Pressure Switch
This form will appear when the difference between the oil delivery pressure and suction pressure is less than the set differential.
After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.
ALL_19 Compressor 3 Oil Differential Pressure Switch
This form will appear when the difference between the oil delivery pressure and suction pressure is less than the set differential.
After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.
ALL_20
After the compressor start-up delay, the alarm is enabled and causes it to stop. Reset is manual.
ALL_23 Compressor 1 Thermal Overload Protection
Opening of the relative digital input causes compressor 1 to stop immediately and this form is displayed.
The alarm can only be cancelled manually.
ALL_24 Compressor 2 Thermal Overload Protection
Opening of the relative digital input causes compressor 2 to stop immediately and this form is displayed.
The alarm can only be cancelled manually.
ALL_25 Compressor 3 Thermal Overload Protection
Opening of the relative digital input causes compressor 3 to stop immediately and this form is displayed.
The alarm can only be cancelled manually.
ALL_26 Compressor 4 Thermal Overload Protection
Opening of the relative digital input causes compressor 4 to stop immediately and this form is displayed.
The alarm can only be cancelled manually.
ALL_27
Unit Needs Maintenance
This form appears when the unit’s working hours exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenance branch.
ALL_28 Compressor 1 Needs Maintenance
ALL_29 Compressor 2 Needs Maintenance
This form appears when the working hours of compressor 2 exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenance branch.
ALL_30 Compressor 3 Needs Manitenance
This form appears when the working hours of compressor 3 exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenance branch.
ALL_31 Compressor 4 Needs Maintenance
This form appears when the working hours of compressor 4 exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt unit operation and can only be cancelled in the maintenance branch.
ALL_34 Punp 1
Needs Maintenance
This form appears when the working hours of pump 1 exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt pump operation and can only be cancelled in the maintenance branch.
ALL_35 Pump 2
Needs Maintenance
This form appears when the working hours of pump 2 exceed the value set for maintenance.
The alarm only involves a signal, does not interrupt pump operation and can only be cancelled in the maintenance branch.
ALL_36 Defrost End for Limit Time
This form is enabled when one defrost procedure ends after exceeding the maximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure ends normally.
ALL_36_1
Compressor 1 Defrost End for Limit Time Overcoming
This form is enabled when there are separate defrost procedures and that of circuit 1 ends after exceeding the maximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure ends normally.
ALL_36_2
Compressor 2 Defrost End for Limit Time Overcoming
This form is enabled when there are separate defrost procedures and that of circuit 2 ends after exceeding the maximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure ends normally.
ALL_36_3
Compressor 3 Defrost End for Limit Time Overcoming
This form is enabled when there are separate defrost procedures and that of circuit 3 ends after exceeding the maximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure ends normally.
ALL_36_4
Compressor 4 Defrost End for Limit Time Overcoming
This form is enabled when there are separate defrost procedures and that of circuit 4 ends after exceeding the maximum time. The form is not related to the alarm’s digital output and can be cancelled manually, or automatically when a defrost procedure ends normally.
ALL_37 Well Water Flow Switch
The alarm occurs when the relative digital input is open with at least one compressor in operation. The alarm is delayed and causes the unit’s compressor(s) to stop. Reset is manual.
ALL_38_1 FanProtections 1
This form is enabled when the fans’ thermal overload relay 1 alarm input is open with at least one compressor in operation; the alarm can only be cancelled manually with the input closed.
Index “1” does not appear for units with only one set of fans.
ALL_38_2 Fan
Protections 2
This form is enabled when the fans’ thermal overload relay 2 alarm input is open with at least one compressor in operation; the alarm can only be cancelled manually with the input closed.
ALL_38_3 FanProtections 3
This form is enabled when the fans’ thermal overload relay 3 alarm input is open with at least one compressor in operation; the alarm can only be cancelled manually with the input closed.
ALL_38_4 FanProtections 4
This form is enabled when the fans’ thermal overload relay 4 alarm input is open with at least one compressor in operation; the alarm can only be cancelled manually with the input closed.
ALL_38_5 FansFC Protections 1
This form is enabled when the free cooling fans’ thermal overload relay 1 alarm input is open. The alarm stops the relative fans and the alarm can only be cancelled manually with the input closed.
ALL_38_6 FansFC Protections 2
This form is enabled when the free cooling fans’ thermal overload relay 2 alarm input is open. The alarm stops the
ALL_38_7 FansFC Protections 3
This form is enabled when the free cooling fans’ thermal overload relay 3 alarm input is open. The alarm stops the relative fans and the alarm can only be cancelled manually with the input closed.
ALL_38_8 FansFC Protections 4
This form is enabled when the free cooling fans’ thermal overload relay 4 alarm input is open. The alarm stops the relative fans and the alarm can only be cancelled manually with the input closed.
ALL_39
User Water Inlet High Temperature Threshold
Overcome
This alarm is enabled if the water temperature value exceeds the maximum value for summer operation and remains above the threshold for longer than the “threshold overcome delay”, with the unit in operation.
The alarm stops the compressors, but the pump continues to operate. The alarm can be cancelled manually at any time, the compressors are re-started and the delay is reset.
ALL_40
User Water Inlet Low Temperature Threshold Overcome
This alarm is enabled if the water temperature value falls below the low value for winter operation and breaks the threshold for longer than the “threshold overcome delay”, with the unit in operation.
The alarm stops the compressors, but the pump continues to operate. The alarm can be cancelled manually at any time, the compressors are re-started and the delay is reset.
ALL_41
User Water Outlet Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the user water outlet temperature is less than the anti-freeze value during the cooling operation.
The alarm stops the unit’s compressors, but the pumps continue to operate. The alarm can be manually reset when the outlet temperature exceeds the increased intervention value of the relative differential.
ALL_42
Well Water Outlet Low Temp.Threshold
The alarm can be manually reset when the outlet temperature exceeds the increased intervention value of the
The alarm is enabled when the user water outlet temperature is greater than the max user value during the heating operation.
The alarm stops the unit’s compressors, but the pumps continue to operate. The alarm can be manually reset when the outlet temperature falls below the intervention value of the relative differential.
ALL_44
High Temperature Threshold
Overcome Well Water Outlet
The alarm is enabled when the well water outlet temperature for water/water units is greater than the max water outlet temperature value during summer operation.
The alarm stops the unit and can be manually cancelled when the outlet temperature falls below the decreased intervention value of the relative differential.
ALL_45
User Water Outlet 1 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the water outlet temperature of circuit 1 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 1 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_46
User Water Outlet 2 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the water outlet temperature of circuit 2 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 2 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_47
User Water Outlet 3 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the water outlet temperature of circuit 3 is less than the anti-freeze value set in the Service branch.
ALL_48
User Water Outlet 4 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the water outlet temperature of circuit 4 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 4 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_51
Well Water Outlet 1 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the well water outlet temperature of the exchanger of circuit 1 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 1 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_52
Well Water Outlet 2 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the well water outlet temperature of the exchanger of circuit 2 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 2 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_53
Well Water Outlet 3 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the well water outlet temperature of the exchanger of circuit 3 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 3 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_54
Well Water Outlet 4 Low Temp.Threshold Overcome: Manual Reset at Min. 00.0°C
The alarm is enabled when the well water outlet temperature of the exchanger of circuit 4 is less than the anti-freeze value set in the Service branch.
The alarm stops compressor 4 and can be reset manually when the water temperature exceeds the differential’s increased intervention value.
ALL_57
High Temperature Threshold
Overcome
User Water Outlet 1
The alarm is enabled when the water outlet temperature of user circuit 1 is greater than the max user value during heating operation.
The alarm stops compressor 1 but the pumps continue to operate. The alarm can be reset manually when the outlet temperature falls below the decreased intervention value of the relative differential.
ALL_58
High Temperature Threshold
Overcome
User Water Outlet 2
The alarm is enabled when the water outlet temperature of user circuit 2 is greater than the max user value during heating operation.
The alarm stops compressor 2 but the pumps continue to operate. The alarm can be reset manually when the outlet temperature falls below the decreased intervention value of the relative differential.
ALL_59
High Temperature Threshold
Overcome
User Water Outlet 3
The alarm is enabled when the water outlet temperature of user circuit 3 is greater than the max user value during heating operation.
The alarm stops compressor 3 but the pumps continue to operate. The alarm can be reset manually when the outlet temperature falls below the decreased intervention value of the relative differential.
ALL_60
High Temperature Threshold
Overcome
User Water Outlet 4
The alarm is enabled when the water outlet temperature of user circuit 4 is greater than the max user value during heating operation.
The alarm stops compressor 4 but the pumps continue to operate. The alarm can be reset manually when the outlet temperature falls below the decreased intervention value of the relative differential.
ALL_63
High Temperature Threshold
Overcome
Well Water Outlet 1
The alarm is enabled when the temperature of well water outlet 1 is greater than the max well water value during the heating operation.
The alarm stops compressor 1.
The alarm can be manually reset when the outlet temperature falls beneath the decreased intervention value of the relative differential.
ALL_64
High Temperature Threshold
Overcome
Well Water Outlet 2
The alarm is enabled when the temperature of well water outlet 2 is greater than the max well water value during the heating operation.
The alarm stops compressor 2.
The alarm can be manually reset when the outlet temperature falls beneath the decreased intervention value of the relative differential.
ALL_65
High Temperature Threshold
Overcome
Well Water Outlet 3
The alarm is enabled when the temperature of well water outlet 3 is greater than the max well water value during the heating operation.
The alarm stops compressor 3.
The alarm can be manually reset when the outlet temperature falls beneath the decreased intervention value of the relative differential.
ALL_66
High Temperature Threshold
Overcome
Well Water Outlet 4
The alarm is enabled when the temperature of well water outlet 4 is greater than the max well water value during
The alarm is enabled when the temperature of well water outlet 4 is greater than the max well water value during