HyperStat Conventional Package Unit (CPU)

4 Minute Read

| 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:

| Wiring

| 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.

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.

mceclip4-cpu part 2.png

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.

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.

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.

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

When parameters are enabled, and thresholds set as below.

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

When parameters are enabled, and thresholds set as below.

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.

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.

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

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.

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

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,

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

| 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.

The Door or Window sensor can be a Thermistor Input or Analog Input.

If the Door Sensor is a

Then

Thermistor Input

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.

Analog Input

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.

When the door is open and the zone is occupied or unoccupied the zones operate as per the table below.

If the zone is occupied

If the zone is unoccupied

Conditioning is turned off.
The minimum fan speed configured in the profile is enabled.

When there is active conditioning:

The minimum relay-based Fan/ Min Analog fan speed / Analog Out 2 at Recirculate is enabled.

When there is no active conditioning:

Fan Stages and Control stages are disabled.

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.

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, along with the alert rings and alert severity legends displayed.

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

| Feature Availability Version

Feature	Hardware/Firmware	Version
The fan control during recirculate, and the tuner Minfanruntimepostconditioning supports as a part of the Title 24 enhancements	CM	3.47 and above.
The Staged Fan control support for Analog Out	HyperStat	1.18 and above
The fan control during recirculate, and the tuner Minfanruntimepostconditioning supports as a part of the Title 24 enhancements	HyperStat	1.26 and above

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