The selection options for Chillers are:
Number of Chillers: This option describes the number of chillers in the system.
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One
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Two
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Three
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Four
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Five
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Six
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Seven
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Eight
Select Type of Sequencing: This option describes the method of sequencing or staging the chillers in the system.
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Return Water Temp Differential: This option sequences chillers to maintain a return water differential.
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Chiller Load: This option sequences chillers based on the load of each chiller.
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% Full Load Amps: This option provides control based on a percent of full load amperes.
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Actual Amps: This option provides control based on actual amperes.
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Decouple Loop Flow: This option sequences chillers using a decouple loop flow.
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Bi-directional Flow Sensor: This option provides a flow meter that reads and outputs a positive or negative flow.
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Bi-directional Flow Sensor with BI input: This option provides a flow meter that always outputs a positive value, but also has a BI that indicates a positive or negative flow.
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Calculate Decouple Flow: This option is available when there are two flow meters that are used to calculate the decouple flow.
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Building Load: This option sequences chillers to meet building load.
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BTU Meter AI: This option measures the building load with a BTU meter through a single AI.
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Calculate Building Load: This option determines building load using two temperatures and a flow meter.
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Chiller Rotation (Runtime): This option automatically changes chiller staging order based on runtime (equal runtime rotation strategy).
Chiller Status: This option monitors the status of each chiller.
Chiller Maintenance Switch: This option generates network inputs used to remove a chiller from service.
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Maintenance Switch (BI): This option generates a binary input used to remove a chiller from service.
Chill Water Pumps: This option provides control for any chill water pumps.
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Dedicated Primary CHW Pumps: This option provides control if each chiller has one dedicated CHW pump.
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Pump Status: This option monitors the status of the pump.
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Loss of Status Strategy
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Alarm Management
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Motor Overload Tripped
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Belt Alarm
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Blocking Protection: This option provides monitoring of the command to a motor (typically a pump). If the command is off for an extended period of time (for example, 7 days), the motor starts for a short time (for example, 30 seconds). This feature prevents blocking (that is, it prevents the motor from seizing up).
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Bypass Valve with Diff Pressure Sensor: This option allows a bypass valve to control differential pressure.
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Parallel Primary CHW Pumps: This option provides control when CHW pumps are piped in a parallel fashion (any pump may work with any chiller).
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One Pump
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Two Pumps
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Three Pumps
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Four Pumps
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Five Pumps
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Six Pumps
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Seven Pumps
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Eight Pumps
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Bypass Valve with Diff Pressure Sensor: This option allows a bypass valve to control differential pressure.
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Pump Rotation (Runtime): This option automatically changes pump staging order based on runtime (equal runtime rotation strategy).
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Pump Status: This option monitors the status of the pump.
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Loss of Status Strategy
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Alarm Management
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Lockout Switch
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Lockout Switch (BI)
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Motor Overload Tripped
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Belt Alarm
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Blocking Protection: This option provides monitoring of the command to a motor (typically a pump). If the command is off for an extended period of time (for example, 7 days), the motor starts for a short time (for example, 30 seconds). This feature prevents blocking (that is, it prevents the motor from seizing up).
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CHW Pump Speed:
- Single Speed Pump
- Variable Speed Pump
Condenser Water Pumps: This option controls any condenser water pumps.
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Dedicated Pumps: This option provides control if each chiller has one dedicated CW pump.
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Pump Status: This option monitors the status of the pump.
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Loss of Status Strategy
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Alarm Management
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Motor Overload Tripped
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Belt Alarm
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Blocking Protection: This option provides monitoring of the command to a motor (typically a pump). If the command is off for an extended period of time (for example, 7 days), the motor starts for a short time (for example, 30 seconds). This feature prevents blocking (that is, it prevents the motor from seizing up).
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Parallel Pumps: This option provides control if the CW pumps are piped in a parallel fashion (any pump may work with any chiller).
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One Pump
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Two Pumps
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Three Pumps
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Four Pumps
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Five Pumps
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Six Pumps
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Seven Pumps
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Eight Pumps
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Pump Rotation (Runtime): This option automatically changes pump staging order based on runtime (equal runtime rotation strategy).
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Pump Status: This option monitors the status of the pump.
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Loss of Status Strategy
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Alarm Management
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Lockout Switch
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Lockout Switch (BI)
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Motor Overload Tripped
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Belt Alarm
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Automatic Restart
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Manual Restart
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Unit Reset Switch (BI)
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Blocking Protection: This option provides monitoring of the command to a motor (typically a pump). If the command is off for an extended period of time (for example, 7 days), the motor starts for a short time (for example, 30 seconds). This feature prevents blocking (that is, it prevents the motor from seizing up).
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