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| How it Works

The 75F HyperStat Conventional Package Unit profile is a standalone profile, that provides heating and cooling equipment controls for conditioning.

The HyperStat provides the flexibility to choose between fully modulating and staged equipment control. Possible equipment configurations include:

  • 3 Stages of cooling equipment control
  • 3 Stages of heating equipment control
  • 3 Stages of fan speed control
  • Linear and Staged Fans for cooling and heating equipment control
  • 2 Thermistor inputs
  • Fan Enabled and Occupied Enable

Additional interlock inputs are provided for door/window/keycard sensors. Onboard sensors for CO2 and humidity provide separate damper control for DCV or humidification/dehumidification.   

Sample applications include:

  • Single zone staged CAV RTU for retail space.  
  • Single zone fully modulating VAV RTU for an industrial setting  
  • Split unit for a small warehouse office. 

| Application of Deadband and Hysteresis

The diagrams below show the application of the Deadband and Hysteresis Band and their role:

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| Wiring

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| Configuration

  • Select the HyperStat option from the device screen.

  • Select Conventional Package Unit (CPU) from the module type.

The pairing options are displayed on the screen which provide the steps to successfully pair the device.

  • Put the device in the Pairing mode.
  • Select the device MAC address from the broadcasting window, or click connect manually to manually pair the device. For steps to manually pair refer to Alternate/Manual Pairing for HyperStat

  • Enter the PIN displayed on the device and press Pair.

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  • Click Pair to start pairing the device.

You can see the configuration screen for the CPU with the following options available for configuration.

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| Configuration Parameters

Parameter

Purpose

Default Value

Values in the drop-down list

Temperature Offset

To set the offset temperature

0 (°F)

Range from -10 to + 10 in .1 increments  

Enable Auto Force Occupied

To enable Auto force occupied

Note: Auto Forced occupied/forced occupied and Auto-Awaycannot work together. 

Disabled

 

Enable

Enable Auto Away

To enable auto away

Note: Auto Forced occupied/forced occupied and Auto Away cannot work together. 

Disabled

 

NA

Relay 1

To enable staged conditioning

Cooling Stage 1 

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low speed

Fan medium speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Relay 2

 

To enable staged conditioning

Cooling Stage 2  

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low speed

Fan medium speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Relay 3

To enable staged conditioning

Fan low speed

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low speed

Fan medium speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Relay 4

To enable staged conditioning

Heating Stage 1

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low speed

Fan medium speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Relay 5

To enable staged conditioning

Heating Stage 2

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low Speed

Fan medium Speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Relay 6

To enable staged conditioning 

Fan High Speed 

Cooling Stage1

Cooling Stage2

Cooling Stage3

Heating Stage1

Heating Stage2

Heating Stage3

Fan low speed

Fan medium speed

Fan highspeed

Fan Enable

Occupied Enable

Humidifier

Dehumidifier

Analog out 1

To enable modulating heating or cooling conditioning and fan speed

Cooling

Cooling

Linear Fan Speed

Heating

DCV Damper

Staged Fan Speed

Analog out 2

To enable modulating heating or cooling conditioning and fan speed

Fan speed

Cooling

Linear Fan Speed

Heating

DCV Damper

Staged Fan Speed

Analog out 3

To enable modulating heating or cooling conditioning and fan speed

Heating

Cooling

Linear Fan Speed

Heating

DCV Damper

Staged Fan Speed

Thermistor 1

To enable Airflow temperature sensor/Enable Generic Fault (NO)/Enable Generic Fault (NC)

Disabled

Airflow Temperature

Generic Fault (NO)

Generic Fault (NC)

 

Thermistor 2

To enable door and window sensor1/Enable Generic Fault (NO)/Enable Generic Fault (NC)

Disabled

Door/Window Sensor (TH2)

Generic Fault (NO)

Generic Fault (NC)

 

Analog in 1

To enable additional sensor inputs

Key Card Sensor 

Current TX (0-10Amps)

Current TX (0-20Amps)

Current TX (0-50Amps)

Key Card Sensor

Door/Window Sensor 1

Analog in 2

To enable additional sensor inputs

Current TX (0-20Amps) 

Current TX (0-10Amps)

Current TX (0-20Amps)

Current TX (0-50Amps)

Key Card Sensor

Door/Window Sensor 2

Analog-out1AtMinCooling

To set the analog out values for modulating conditioning controls

2V

Range from 0V to 10V in 1V increments 

Analog-out1AtMaxCooling

To set the analog out values for modulating conditioning controls

10V

Range from 10V to 0V in 1V increments 

 

Analog-out2AtMinFan

To set the analog out values for modulating conditioning controls

2V

Range from 0V to 10V in 1V increments  

Analog-out2AtMaxFan

To set the analog out values for modulating conditioning controls

10V

Range from 10V to 0V in 1V increments 

Analog-out3AtMinHeating 

To set the analog out values for modulating conditioning controls

2V

Range from 0V to 10V in 1V increments  

Analog-out3AtMaxHeating

To set the analog out values for modulating conditioning controls

10V

Range from 10V to 0V in 1V increments 

Analog Out 2 at Fan low

To set the damper positions at staged fan speeds

30%

Range from 0% to 100% in 10% increments 

Analog Out 2 at Fan medium

To set the damper positions at staged fan speeds

60%

Range from 0% to 100% in 10% increments 

Analog Out 2 at Fan high

To set the damper positions at staged fan speeds

100%

Range from 0% to 100% in 10% increments 

CO2 Threshold

To set the CO2 Threshold value to control the DCV damper opening.

800 ppm

Disable, and range from 0 ppm to 4000 ppm in 10 ppm increments 

CO2 Target

To set the CO2 Target value for the CCU level alerts

1000 ppm

Disable, and range from 0 ppm to 4000 ppm in 10 ppm increments

VOC Threshold

To set the VOC threshold value for the device level alerts

10000 ppb

Disable, and range from 0 ppb to 10000 ppb in 100 ppb increments 

VOC Target

To set the VOC target value for the CCU level alerts

10000 ppb

Disable, and range from 0 ppb to 10000 ppb in 100 ppb increments 

PM 2.5 Threshold

To set the PM 2.5 threshold value for the device level alerts

1000 ppb

Disable, and range from 0 ug/m³ to 1000 ug/m³ in 5 ug/m³ increments 

PM2.5 Target

To set the VOC target value for the CCU level alerts

1000 ppb

Disable, and range from 0 ug/m³ to 1000 ug/m³ in 5 ug/m³ increments

 

Test Signal

This is used for troubleshooting and testing the equipment if the configuration and the field setup are in sync, and the device is communicating properly with the controlled equipment. Also at any point, you can override the value of the output the algorithm decides. 

We can use the test signal for relays to turn them on or for analog out to ramp up and see if the equipment works according to commands from the device.

Test Signal Time Out

once enabled it will be active for an hour if the screen is not changed, after an hour of no interaction on the screen.  zone screen displays and the test signal will be OFF.

If the screen changes from the test signal configuration screen it will be timed out in one minute (time for the algorithm to run next).

Note: The test signal for modulating output is in deci volts ranging from 0.0dV to 100.0dV.

  • Configure the required parameters.

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Additional parameters are made available when DCV Damper or Linear/ Staged Fan Speed is one of the Analog Outputs as below.

DCV Damper

When DCV damper is selected as below:

The following additional options are made available for configuring.

Parameter

Purpose

Default Value

Values in the drop-down list

Analog Out at Min DCV Damper

To set the minimum analog out value for modulating DCV Damper Control

2V

Range from 0V to 10V in 1V increments 

Analog Out at Max DCV Damper

To set the maximum analog out values for modulating DCV Damper Control

10V

Range from 0V to 10V in 1V increments

CO2 Damper Opening Rate

To set damper opening rate based on the CO2 Thresholds

10%

Range from 0% to 200% in 10% increments 

 

| Analog Out for Fan Speeds

You can now select a Linear Fan speed or a staged fan speed control for the Analog Out 2 as below. 

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Linear Fan Speed as Analog Out

When linear fan speed is selected as below.

Parameter

Purpose

Default Value

Values in the drop-down list

Analog Out at Min Linear Fan Speed

To set the minimum analog out value for modulating Linear Fan Speed Control

2V

Range from 0V to 10V in 1V increments

Analog Out at Max Linear Fan Speed

To set the maximum analog out values for modulating Linear Fan Speed Control

10V

Range from 0V to 10V in 1V increments

 

For the Linear Fan speed selection under Analog Out 2, A tuner parameter Minfanruntimepostconditioning is also introduced, as below. This tuner defines the period for which the Last known analog out fan speed needs to be run after the conditioning is turned off.

Staged Fan Speed as Analog Out

When staged fan speed is selected as below.

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The following additional options are made available for configuring.

Parameter

Purpose

Default Value

Values in the drop-down list

Fan out During Cooling Stage 1

To set the analog out value for fan speed during stage 1 cooling

7V

Range from 0V to 10V in 1V increments.

Fan out During Cooling Stage 2

To set the analog out value for fan speed during stage 2 cooling

10V

Range from 0V to 10V in 1V increments

Fan out During Heating Stage 1

To set the analog out value for fan speed during stage 1 heating

7V

Range from 0V to 10V in 1V increments

Fan out During Heating Stage 2

To set the analog out value for fan speed during stage 1 heating

10V

Range from 0V to 10V in 1V increments
Analog-Out2 at Fan Low To set Analog out percentage values for Fan Low. 70% Range from 0% to 100% in 1% increments
Analog-Out2 at Fan Medium To set Analog out percentage values for Fan Medium. 80% Range from 0% to 100% in 1% increments
Analog-Out2 at Fan High To set Analog out percentage values for fan High. 100% Range from 0% to 100% in 1% increments
Analog-Out2 at Fan Recirculate To set Analog out values in Volt for Fan during recirculate. 4V Range from 0V to 10V in 1V increments

Fan out During Heating Stage 3

To set the analog out value for fan speed during stage 1 heating

10V

Range from 0V to 10V in 1V increments

Note: The Minfanruntimepostconditioning tuner value is also applicable for the stage fan speed selection under Analog-out 2. This tuner defines the period for which the stage 1 fan /Fan low speed needs to be run after the conditioning is turned off.

| Operation

The above options will appear based on the number of heating and cooling stages associated with the relays and if there are no heating/cooling stages then the staged fan cannot be associated with the AOs.

This means the user can now decide at exactly what speed the VFD, or analog fan should function when the cooling or heating stages are triggered, which effectively takes care of any kind of disproportionate operation between the cooling/heating stages and the analog fan. 

This means now the analog fan operates at least at 75-80% of its maximum speed when the cooling/heating stage 1 is triggered.

Also when the no cooling or heating stages are triggered due to zero loop output, we can have a small amount of fan loop output, that could provide a small percentage of fan speed, managed by altering the Analog Fan speed multiplier, tuner parameter.

| IAQ Parameters Display Settings in the HyperStat Device

The profile also allows the user to set IAQ parameters that can be displayed in the HyperStat device's home screen.                   

Note: Only two of the IAQ parameters can be set at a time, to be displayed on the HyperStat device's home screen, or none can be enabled. 

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Before the parameters are enabled, the HyperStat device screen is showcased as below:

 

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When parameters are enabled, and thresholds set as below.

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The enabled parameter values and the threshold breach message are displayed on the HyperStat device's screen as below. 

 

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When parameters are enabled, and thresholds set as below.

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The enabled parameter values are displayed on the HyperStat device screen along, with an alert message for a breach in any of the four IAQ parameters as below:

The configuration also provides an option to disable the targets and thresholds for the IAQ parameters CO2, VOC, and PM2.5 as below.

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  • Click Set to confirm the configuration changes.

| Post Configuration

The zones paired with the Conventional Package Unit (CPU) profile is displayed in the CCU as below.

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You can see widgets configured in the heatmap pages in the portals as below.

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You are also provided with profile reconfiguration options from the Internal portal as shown below, with all the features and capabilities that were available in CCU as explained in the above sections. 

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Note: Changes made to the re-configuration section are cascaded to the CCU and the HyperStat device.

| Modes & Operations

As in the other HyperStat profiles, the HPU profile as well supports the following fan and conditioning modes.

Fan Modes

  • Off
  • Auto
  • Fan Low Current Occupied Period 
  • Fan Low Occupied Period
  • Fan Low All Times
  • Fan Medium Current Occupied Period
  • Fan Medium Occupied Period
  • Fan Medium All Times
  • Fan High Current Occupied Period 
  • Fan High Occupied Period
  • Fan High All Time

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Based on the fan stages configured in the configuration window, the fan stages are made available in CCU and the portal for selection as user intents.

Note: The HyperStat hardware supports only the following fan modes at its end,

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And when a change is made, it would translate to the following in the CCU.

  • Auto------ Auto
  • Low------Fan Low Current Occupied Period
  • Medium-------Fan Medium Current Occupied Period
  • High-------Fan High Current Occupied Period 

Conditioning Modes

  • Off
  • Auto
  • Cool Only 
  • Heat Only

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| Controls and Triggers Strategy

Controls Trigger Strategy
Cooling Stages Cooling stages trigger when the zone demands cooling, based on the current temperature. The cooling stages switch ON based on the cooling loop output, whose values are scaled for the different stages. And switches off based on conditioned current temperature values.
Heating Stages 

Heating stages trigger when the zone demands to heat, based on the current temperature. The heating stages switch ON based on the heating loop output, whose values are scaled for the different stages. And switches off based on conditioned current temperature values.

Fan Stages

Fan stages trigger based on the fan loop output which is a result of cooling loop and heating loop outputs, during cooling and heating operation respectively.

Fan control configured as modulating using analog out the percentages for the low, medium, and high are altered to 30% 60%, and 100% respectively.

Fan Enable

Fan enable is a provision introduced to enable additional fan control, which switches "ON" during the occupied schedule, and when any conditioning is happening during the unoccupied schedule.

Example:

  • Fan Enable is used in a modulating VFD-controlled fan, where the variable frequency drives need to be switched "ON" before ramping up and down the fan speeds.
  • It can also be put to use for additional fan control within a staged HVAC unit or a zone, which should remain "ON" during their occupied hours.

Note: Fan Enabled is not a control option for the Fan stages. the fan stages control needs to be mapped separately for the system to start conditioning.

 

When the Fan Enabled is configured alongside the AnalogOut-based Staged fan speeds, or staged fan speeds on other relays.

The Analog Out minimum Fan, or the relay for minimum Fan speed is turned ON even when the fan loop output is <10% without considering the relay activation hysteresis.

Occupied Enable A relay mapped to Occupied Enable is "ON" whenever the zone is in an occupied schedule and "OFF" when any conditioning happens during an unoccupied schedule.
Humidifier 

A Relay mapped to the humidifier is turned on whenever the humidity level for the CPU drops below the target Minimum Inside Humidity, a tuner value.

 And shows the user a target humidity control in Zone Screen on CCU and Facilisight portal

De Humidifier 

A Relay mapped to the dehumidifier is turned on whenever the humidity level for the CPU goes above the target Minimum Inside Humidity, a tuner value.

 And shows the user a target humidity control in Zone Screen on CCU and Facilisight portal

Demand Control Ventilation (DCV)

The DCV control is used to control an independent damper for the ventilation of air into the zone.  based on the following additional parameters set during configuration.

  • zoneCO2DamperOpeningRate   
  • zoneCO2Threshold
  • zoneCO2Target

This allows for very granular control of the IAQ.

It is driven or triggered by the DCV Loop Output which is a resultant of the above-configured parameters.

Example:

During an occupied time

If the Zone CO2 value > zoneCO2Threshold then DCV damper control triggers based on the DCV loop output.

If the Zone CO2 value < zoneCO2Threshold there will be no DCV damper trigger, and the relay will be set to OFF.

Door/Window Sensing

The door/window sensors are used to automatically override the operation of a zone, for the presence of doors and windows in the zone, Where the door/window can be opened and there can be a loss of the actual conditioning that is in effect.

When the door/window sensor is a part of the Thermistor IN, a resistance is detected, based on which the zone operations are overridden.

  • If the resistance detected is less than 10,000 ohms, the door is in closed condition, and the zone enters the door/window closed state.
  • If the resistance detected is more than 10,000 ohms the door is in open state condition, and the zone enters the door/window open state, during which the heating, cooling, and demand ventilation are turned off.

When the door/window sensor is a part of the Analog IN, a Voltage is detected, based on which the zone operations are overridden.

  • If the Voltage detected is less than 2.0V the door is in closed condition, and the zone enters the door/window closed state.
  • If the Voltage detected is more than 2.0V the door is in open state condition, and the zone enters the door/window open state, during which the heating, cooling, and demand ventilation are turned off.

 For more information on the door and window sensor working refer HyperStat Installation

Note: If this option is enabled by the user, this affects the conditioning status of the entire zone if multiple modules are paired in the zone. 

When the Door/Window sensor is enabled the sensors do not influence the applicable conditioning during unoccupied times, and the fan control is enabled as per the table below.

Scenario Result
The zone is unoccupied, there is no conditioning, and the door or window is kept open Fan Stages or Control is disabled
The zone is unoccupied, the conditioning is active, and the door or window is kept open

The minimum relay-based Fan/ Min Analog fan speed / Analog Out 2 at Recirculate is enabled in case of staged fan speed configuration.

 

Keycard Sensor

The Keycard sensors are also used to automatically override the operation of a zone, where when the key card is removed from the keycard slot in a room/zone, which means the occupant of the room is no longer in the room leading to loss of the actual conditioning that is in effect. Up to one keycard sensor can be connected for a zone.

When the Keycard sensor is a part of the Analog IN, a Voltage is detected, based on which the zone operations are overridden.

  • If the Voltage detected is less than 2.0V the Keycard switch is closed and the card is in the slot,
    • And the zone operates normally during an occupied schedule time.
    • or the zone enters into auto force occupied if the zone is in unoccupied schedule time.
  • If the Voltage detected is more than 2.0V the Keycard switch is opened and the card is not in the slot,
    • And the zone enters into unoccupied from forced occupied if the zone is in unoccupied schedule time.
    • or zone enters into Key card auto away if the zone is in occupied schedule respectively.

For more information on the keycard sensor working refer HyperStat Installation

Note:  Keycard functioning is separate from the "Auto Away" toggle. There is no interlinking between keycard-based functioning and Occupancy sensor-based functioning.

Current Transformer

Current transformer is another analog input option in the profiles for HyperStat, it connects to a transformer in the circuit and simply measures the current consumption in the circuit.

For more information on the current transformers as Analog IN refer HyperStat Installation

Note: Each module configured can have up to 2 door/window sensors, but sensor type keycard can only be one for the given equipment. If keycard is present, the zone is considered occupied by default.

| Equip Graphics for Hyperstat CPU

Equipment graphics is available for all the terminal profiles. It provides a graphical representation of system-level equipment and enables monitoring of key point parameters associated with terminal profiles.

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The highlighted list of points is predefined for visualization alongside the graphic for the respective profile.

 

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