HyperStat Heat Pump Unit (HPU)

.12 Minute Read

| Overview

The HyperStat Heat Pump Unit (HPU) is a profile introduced by Airoverse to provide a zone-level control using the HyperStat thermostat. Heat pump units are used in buildings in regions that could experience extreme weather and require more heating during certain times. The heat pump unit is capable enough to provide necessary heating and cooling to the space, efficiently conserving energy. The heat pump unit consists of the compressor with refrigerant, a reversing valve, a fan, and Auxiliary heating equipment that provides the required conditioning.

| How it Works.

The Airoverse HyperStat Heat Pump Unit is a unique profile that provides both heating and cooling conditioning.

Based on whether the unit is in the heating operation or cooling operation the reversing valve is set to reverse the direction of the flow of the refrigerant switching the condenser and the evaporator coil of the system to provide the necessary conditioning.

The reheat capability is enabled with the auxiliary heating stages which only gets triggered during the Auto and Heat Only mode when the compressor-provided heat is not sufficient (where additional heat is required).

The HyperStat Heat Pump Unit (HPU) provides the flexibility to choose between fully modulating and staged equipment control. The possible equipment configurations include:

• 3- Stage Compressor Control
• 2- Stage auxiliary heating control
• 3- Stage Fan Speed Control
• Changeover (Type O or Type B)
• 1 Thermistor inputs
• Fan Enabled and Occupied Enable

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

| Application of Deadband and Hysteresis

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

| Wiring Diagram

| Configuration

• Select the HyperStat option from the device screen.

• Select Heat Pump Unit (HPU) from the module type.

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

• Put the device in the Pairing mode.

• Select the MAC address of the device displayed on the broadcasting window.
• Alternately, Click manually to manually pair the device. For steps on manual pairing refer to Alternate/Manual Pairing for HyperStat.

• Enter the corresponding PIN from the device.

• Click Pair to start the pairing.

You can see the configuration screen for the Heat Pump Unit (HPU) with the following options available for configuration.

| Configuration Parameters

Once the HyperStat is paired as a Heat Pump Unit (HPU) profile, you can select a few specific configuration parameters as below, that define the physical characteristics of the device.

Parameter	Purpose	Default Value	Default 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-Away cannot 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.	Compressor Sage 1	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Relay 2	To enable staged conditioning.	Compressor Sage 2	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Relay 3	To enable Fan operation.	Fan low speed.	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Relay 4	To enable staged conditioning.	Aux Heating Stage 1	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Relay 5	To enable fan operation.	Fan Medium Speed	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Relay 6	To enable the direction of the reversing valve.	Change Over O Cooling	Compressor Stage 1 Compressor Stage 2 Compressor Stage 3 Aux Heating Stage 1 Aux Heating Stage 2 Fan Low Speed Fan Medium Speed Fan High Speed Fan Enabled Occupied Enabled Humidifier Dehumidifier Change Over O Cooling Change Over B Heating
Analog out 1	To enable modulating compressor motor/Fan speed, and DCV damper.	Compressor Speed	Compressor Speed Fan Speed DCV Damper
Analog out 2	To enable modulating compressor motor/Fan speed, and DCV damper.	Fan Speed	Compressor Speed Fan Speed DCV Damper
Analog out 3	To enable modulating compressor motor/Fan speed, and DCV damper.	DCV Damper	Compressor Speed Fan Speed DCV Damper
Thermistor 1	To enable Airflow temperature input sensing/To enable Generic Fault (NC)/ To enable Generic Fault (NO).	Disabled	Air Flow Temperature Generic Fault (NC) Generic Fault (NO)
Thermistor 2	To enable Door or Window Sensor/To enable Generic Fault (NC)/ To enable Generic Fault (NO).	Disabled	Door/Window Sensor (TH2) Generic Fault (NC) Generic Fault (NO)
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.	Door/Window Sensor (AI2)	Current TX (0-10Amps) Current TX (0-20Amps) Current TX (0-50Amps) Key Card Sensor Door/Window Sensor 2
Analog-out1 At Min Compressor Speed	To set the analog out values for modulating valve controls for Compressor Speed.	2V	Range from 0V to 10V in 1V increments.
Analog-out1 At Max Compressor Speed	To set the analog out values for modulating valve controls for Compressor Speed.	10V	Range from 10V to 0V in 1V increments.
Analog-out2 At Min Fan Speed	To set the analog out values for modulating conditioning controls (fan controls).	2V	Range from 0V to 10V in 1V increments.
Analog-out2 At Max Fan Speed	To set the analog out values for modulating conditioning controls (fan controls).	10V	Range from 0V to 10V in 1V increments.
Analog-out3At Min DCV Damper	To set the analog out values for modulating conditioning controls.	2V	Range from 0V to 10V in 1V increments.
Analog-out3 At Max DCV Damper	To set the analog out values for modulating conditioning controls.	10V	Range from 0V to 10V in 1V increments.
Analog Out 2 at Fan low	To set the damper opening percentage at staged fan speeds.	70%	Range from 0% to 100% in 10% increments.
Analog Out 2 at Fan medium	To set the damper opening percentage at staged fan speeds.	80%	Range from 0% to 100% in 10% increments.
Analog Out 2 at Fan high	To set the damper opening 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.	4000 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.	4000 ppm	Disable and range from 0 ppm to 4000 ppm in 10 ppm increments.
CO2 Damper Opening Rate	To set the CO2 damper opening rate for the CCU level alerts.	10%	Disable and range from 0 to 200% in 10 % 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.

| Control System Object List

Object Name	Type	Input/Output Type/Default Value
Heating Desired Temp	User Intent	NA
Cooling Desired Temp	User Intent	NA
Current Temp	Input	HyperStat/ OWI Sensor
Humidity	Input	HyperStat/ OWI Sensor
User Cooling Max Limit	User Intent	NA
User Cooling Min Limit	User Intent	NA
User Heating Max Limit	User Intent	NA
User Heating Max Limit	User Intent	NA
Conditioning Mode	User Intent	NA
Operation Mode	Input	NA
Fan Mode	User Intent	NA
Occupancy Mode	Input	HyperStat Onboard
Compressor Stage 1	Output	HyperStat Relay
Compressor Stage 2	Output	HyperStat Relay
Compressor Stage 3	Output	HyperStat Relay
Aux Heating Stage 1	Output	HyperStat Realy
Aux Heating Stage 2	Output	HyperStat Relay
Fan Low Speed	Output	HyperStat Relay
Fan Medium Speed	Output	HyperStat Relay
Fan High Speed	Output	HyperStat Relay
Humidifier	Output	HyperStat Relay
Dehumidifier	Output	HyperStat Relay
Modulating Compressor Speed	Output	HyperStat Analog Out
Modulating Fan Speed	Output	HyperStat Analog Out
Modulating DCV Damper	Output	HyperStat Analog Out
Airflow Temperature	Input	HyperStat Thermistor
Supply Water Temperature	Input	HyperStat Thermistor
analogFanSpeedMultiplier	Tuner	1
auxHeating1Activate	Tuner	3F
auxHeating2Activate	Tuner	4F

Note: For a comprehensive list of tuners and their details refer to Tuners Complete List.

| Sequence of Operation

The sequence of operation is completely driven based on Occupancy mode,  Space Current Temperature, the set Cooling and Heating Desired Temperatures, and Space CO2 levels.

Let us understand the Sequence of operations based on the occupancy modes, and how the other factors contribute to the sequence of operations during different types of occupancy modes.

| Occupancy Modes

The occupancy mode (Occupied or Unoccupied) shall be determined through a user-adjustable, graphical, seven-day schedule with a holiday schedule, alongside the configurable auto away and forced occupied options (external schedule influencers) for optimized controls and enhanced energy savings.

Based on the above aspects factoring into the occupancy the following can be the possible applicable occupancy modes:

• Pre- Conditioning
• Occupied
• Unoccupied
• Auto-Away
• Forced Occupied

| Sequence of Operation During Pre-Conditioning

Warm-up:

• If the space temperature is below the occupied heating temperature setpoint, the pre-conditioning shall initiate the morning warm-up via HeatingLoopOutput as below.

If	Then
The compressor stages with Fan stages meet the zone load	The HeatingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed. The FanLoopOutput is enabled based on HeatingLoopOutput (FanLoopOutput= HeatingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
The compressor stages with the fan stages do not meet the zone load	The Auxiliary heating stages are enabled.  Current temp= Heating Desired - auxHeating1Activate (3F) = AuxHeating1 enabled, where 3F is a tuner value Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired - auxHeating2Activate (4F)= AuxHeating2 enabled, where 4F is a tuner value Current temp= Heating Desired -3F= AuxHeating2 off  Fan stages ramp up based on the Auxillary Heating stages. Note: Along with the actual scaled fan stage, the lower stages are also enabled.

 

• The dcvLoopOutput is disabled.

Pre-cooling:

• If the space temperature exceeds the occupied cooling temperature setpoint, the pre-conditioning shall initiate the morning pre-cooling via CoolingLoopOutput. The CoolingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed.
• The FanLoopOutput is enabled based on CoolingLoopOutput (FanLoopOutput= CoolingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
• The dcvLoopOutput is disabled.

Note:  Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively. 

| Sequence of Operation During Occupied

At all occupied times: (based on a set schedule)

• The device maintains a space temperature within the Heating Desired Temperature and Cooling Desired Temperature Range.

During Deadband:

• A minimum fan speed is maintained, and the minimum fan analog voltages are set to 2V (customizable) for linear fans, and a recirculation fan speed voltage for relay based fans.

During Heating:

• When the space current temperature falls below the HeatingDesiredTemperature the HeatingLoopOutput is enabled as below.

If	Then
The compressor stages with Fan stages meet the zone load	The HeatingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed. The FanLoopOutput is enabled based on HeatingLoopOutput (FanLoopOutput= HeatingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
The compressor stages with the fan stages do not meet the zone load	The Auxiliary heating stages are enabled.  Current temp= Heating Desired - auxHeating1Activate (3F) = AuxHeating1 enabled, where 3F is a tuner value Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired - auxHeating2Activate (4F)= AuxHeating2 enabled, where 4F is a tuner value Current temp= Heating Desired -3F= AuxHeating2 off  Fan stages ramp up based on the Auxillary Heating stages. Note: Along with the actual scaled fan stage, the lower stages are also enabled

 

• When the space CO2 level is above the CO2 threshold set, the dcvLoopOutput is enabled with the dcvCalculatedDamperPos = (sensorHyperStatCo2 - zoneCO2Threshold )/zoneCO2DamperOpeningRate, modulating between the analogOutxAtMinDCVDamperPos and analogOutxAtMaxDCVDamperPos

During Cooling:

• If the space temperature exceeds the occupied cooling temperature setpoint, the pre-conditioning shall initiate the morning pre-cooling via CoolingLoopOutput. The CoolingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed.
• The FanLoopOutput is enabled based on CoolingLoopOutput (FanLoopOutput= CoolingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
• When the space CO2 level is above the CO2 threshold set, the dcvLoopOutput is enabled with the dcvCalculatedDamperPos = (sensorHyperStatCo2 - zoneCO2Threshold )/zoneCO2DamperOpeningRate, modulating between the analogOutxAtMinDCVDamperPos and analogOutxAtMaxDCVDamperPos

Note:  Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively.

 

| Sequence of Operation During AutoAway

• The range of Heating Desired Temperature and Cooling Desired Temperature drifts further away.
• The device maintains a space temperature within the newly set Heating Desired Temperature and Cooling Desired Temperature Range.

During Deadband:

• CoolingLoopOutput, HeatingLoopOutput, FanLoopOutput, and Auxiliary Heating Stages are disabled.

During Heating:

• When the space current temperature falls below the heating autoaway setback temperature, the HeatingLoopOutput is enabled as below.

If	Then
The compressor stages with Fan stages meet the zone load	The HeatingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed. The FanLoopOutput is enabled based on HeatingLoopOutput (FanLoopOutput= HeatingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
The compressor stages with the fan stages do not meet the zone load	The Auxiliary heating stages are enabled.  Current temp= Heating Desired - auxHeating1Activate (3F) = AuxHeating1 enabled, where 3F is a tuner value Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired - auxHeating2Activate (4F)= AuxHeating2 enabled, where 4F is a tuner value Current temp= Heating Desired -3F= AuxHeating2 off  Fan stages ramp up based on the Auxillary Heating stages. Note: Along with the actual scaled fan stage, the lower stages are also enabled

During Cooling:

• If the space temperature exceeds the cooling autoaway setback temperature, the pre-conditioning shall initiate the morning pre-cooling via CoolingLoopOutput. The CoolingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed.
• The FanLoopOutput is enabled based on CoolingLoopOutput (FanLoopOutput= CoolingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
• The dcvLoopOutput is disabled.

Note:  Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively.

| Sequence of Operation During UnOccupied

• The range of Heating Desired Temperature and Cooling Desired Temperature drifts further away.
• The device maintains a space temperature within the newly set Heating Desired Temperature and Cooling Desired Temperature Range.

During Deadband:

• CoolingLoopOutput, HeatingLoopOutput, FanLoopOutput, and Auxiliary Heating Stages are disabled.

During Heating:

• When the space's current temperature falls below the heating unoccupied setback temperature, the HeatingLoopOutput is enabled as below.

If	Then
The compressor stages with Fan stages meet the zone load	The HeatingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed. The FanLoopOutput is enabled based on HeatingLoopOutput (FanLoopOutput= HeatingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
The compressor stages with the fan stages do not meet the zone load	The Auxiliary heating stages are enabled.  Current temp= Heating Desired - auxHeating1Activate (3F) = AuxHeating1 enabled, where 3F is a tuner value Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired - auxHeating2Activate (4F)= AuxHeating2 enabled, where 4F is a tuner value Current temp= Heating Desired -3F= AuxHeating2 off  Fan stages ramp up based on the Auxillary Heating stages. Note: Along with the actual scaled fan stage, the lower stages are also enabled

• The dcvLoopOutput is disabled

During Cooling:

• If the space temperature exceeds the cooling unoccupied setback temperature, the pre-conditioning shall initiate the morning pre-cooling via CoolingLoopOutput. The CoolingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed
• The FanLoopOutput is enabled based on CoolingLoopOutput (FanLoopOutput= CoolingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
• The dcvLoopOutput is disabled.

Note:  Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively.

| Sequence of Operation During Forced Occupied

• The device maintains a space temperature within the Heating Desired Temperature and Cooling Desired Temperature Range.

During Deadband:

• A minimum FanLoopOutput is enabled regardless of no conditioning.

During Heating:

• When the space current temperature falls below the Heating Desired Temperature the HeatingLoopOutput is enabled as below.

If	Then
The compressor stages with Fan stages meet the zone load.	The HeatingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed. The FanLoopOutput is enabled based on HeatingLoopOutput (FanLoopOutput= HeatingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
The compressor stages with the fan stages do not meet the zone load	The Auxiliary heating stages are enabled.  Current temp= Heating Desired - auxHeating1Activate (3F) = AuxHeating1 enabled, where 3F is a tuner value Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired - auxHeating2Activate (4F)= AuxHeating2 enabled, where 4F is a tuner value Current temp= Heating Desired -3F= AuxHeating2 off  Fan stages ramp up based on the Auxillary Heating stages. Note: Along with the actual scaled fan stage, the lower stages are also enabled

• The dcvLoopOutput is disabled.

During Cooling:

• If the space temperature exceeds the occupied cooling temperature setpoint, the pre-conditioning shall initiate the morning pre-cooling via CoolingLoopOutput. The CoolingLoopOutput is mapped to the Analog-based Compressor Speed/ relay-based Compressor Speed
• The FanLoopOutput is enabled based on CoolingLoopOutput (FanLoopOutput= CoolingLoopOuptut* analogFanSpeedMultiplier(1)) the FanLoopOutput is mapped to the Analog- based / relay-based fan speeds.
• The dcvLoopOutput is disabled.

Note:  Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively.

| Sequence of Operation During Emergency Conditioning

When building limits are violated, and the recorded temperature is within the building limit plus leeway the conditioning will happen in the direction of zone load.

| Sequence of Operation During Temp Dead

And, When the Building temperature breaches the building limits, beyond the leeway limits all the following loops are disabled:

• CoolingLoopOutput
• HeatingLoopOutput
• Auxiliary Heating Stages
• FanLoopOutput
• dcvLoopOutput

| Humidifier Control

The humidifier is turned ON whenever the humidity level for the system drops below the targetMinInsideHumidty set. The humidifier will be turned OFF after being turned on when the humidity levels go humidityHysteresis above the targetMinInsideHumidty. Humidity control will not be maintained during UNOCCUPIED or VACATION modes.

| DeHumidifier Control

If the dehumidifier is selected, it turns ON whenever the humidity level for the system goes above the targetMaxInsideHumidty set. The dehumidifier will be turned OFF after being turned on when the humidity drops humidityHysteresis below the targetMaxInsideHumidty. Dehumidifier control will not be maintained during UNOCCUPIED or VACATION modes.

Note: The humidity level for the system is either the average level reported by all the zones serviced by the RTU/AHU.

| Control Mode Summary

User intent Modes  & Operation based on Setpoint & Setback	Pre-Conditioning	Occupied	AutoAway	Unoccupied	Forced Occupied
Auto	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) / (CoolingLoopOutput FanLoopOutput)	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) dcvLoopOutput) / (CoolingLoopOutput FanLoopOutput) dcvLoopOutput	(HeatingLoopOutput FanLoopOutput)/ (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) /  (CoolingLoopOutput FanLoopOutput)	(HeatingLoopOutput FanLoopOutput)/ (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) / (CoolingLoopOutput FanLoopOutput)	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) dcvLoopOutput/ (CoolingLoopOutput FanLoopOutput) dcvLoopOutput
Heat Only	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput)	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) dcvLoopOutput	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput)	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput)	(HeatingLoopOutput FanLoopOutput) / (HeatingLoop Output +Auxillary Heating Stages  FanLoopOutput) dcvLoopOutput
Cool Only	CoolingLoopOutput FanLoopOutput	CoolingLoopOutput FanLoopOutput dcvLoopOutput	CoolingLoopOutput FanLoopOutput	CoolingLoopOutput FanLoopOutput	CoolingLoopOutput FanLoopOutput dcvLoopOutput
Off	All Loops Deactivated

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.

| Configuration Restrictions & Nuances

Below are pointers to be paid attention to, while configuring a Heat Pump Unit (HPU) profile:

• Fan Enabled is not a control option for enabling conditioning. The fan stages control needs to be mapped separately for the system to start conditioning.
• A change over relay mapping for heating or cooling is a must in an Heat Pump Unit (HPU) profile configuration.
• Any one of the relays will have to be enabled as a change-over relay, to activate the reversing valve for cooling/heating.
• When a profile configuration is concluded without configuring a changeover relay mapping an error message will pop up as below.

• More than one changeover relay can be mapped in a configuration.

• But once a changeover relay type is selected for a relay, only the selected type is available in the drop-down to configure for other relays as below.

You can see in the above screen, the changeover type that is not selected is disabled in the drop-down.

• Only one type of change over relay per profile is supported.

| Configuration Concluded

Considering the Auto-Away and Auto Occupied toggle is enabled, the following are the relay mapping options available to select.

It is to be noted that additional parameters are made available, only when DCV Damper is one of the Analog Outputs. The parameters for the same are discussed below.

Parameter	Purpose	Default Value	Values in Drop Down
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.

The configuration also provides an option to disable the targets and thresholds for the IAQ parameters CO2, VOC, and PM2.5as below. Scroll further to view all the drop-down values under the CO2 Threshold and CO2 Target values.

At least two of the parameters need to be enabled for viewing in the HyperStat device display, else a warning message pops up to indicate the same. 

• Click Set to confirm the parameters configured.

| Post Configuration

The zone paired with the Heat Pump Unit (HPU) profile is displayed in the CCU as below.

Below are widgets configured in the heatmap pages in the portals.

 

The user is 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. 

| Modes & Operations

As in the other HyperStat profiles, the Heat Pump Unit (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

The conditioning modes are also made available in CCU and the portal for selection as user intents.

| Controls and Triggers Strategy

Controls	Trigger Strategy
Compressor stages	Compressor stages trigger during both heating and cooling based on the zone demands. When zone demands cooling the compressor stages trigger is determined based on the cooling loop output. And when the zone demands Heating the compressor stages trigger is determined based on the Heating loop output.
Auxiliary Heating Stages	Auxiliary heating stages are triggered based on the below scenarios. Current temp= Heating Desired -3F= AuxHeating1 Trigger, where 3F is a tuner value (auxHeating1Activate), and when Current temp= Heating Desired -2F= AuxHeating1 off Current temp= Heating Desired -4F= AuxHeating2 Trigger, where 4F is a tuner value (auxHeating2Activate), and when Current temp= Heating Desired -3F= AuxHeating2 off
Fan Stages	Fan stages trigger based on the fan loop output which is a result of cooling loop or heating loop outputs, during cooling and heating operation respectively. Fan control (for user intent) is configured as modulating using analog out the percentages for the low, medium, and high are altered to 70% 80%, and 100% respectively. Fan stages during the aux heating are driven by aux heat stages, but along with the actual scaled fan stage, the lower stages are also triggered. Higher stages of the fan along with the lower ones run if the mapped stages are not available, the system looks for the next higher fan stage along with the lower stages of fan speeds.
Change Over Relay Operation	A relay mapped to the heating change (indoor unit favoring reverse) valve is activated when the zone is demanding heating, during heating operation, and there is a heating loop output, and the relay is deactivated otherwise. A relay mapped to the cooling change (outdoor unit favoring reverse) valve is activated when the zone is demanding cooling, during cooling operation, and there is a cooling loop output, and the relay is deactivated otherwise.
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.
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 Airoverse for Facilities apps.
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 Airoverse for Facilities apps.
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 a keycard is present, the zone is considered occupied by default.

| 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 in 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 are set, the screen is displayed below:

 

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

 

| Equip Graphics for Hyperstat Heat Pump Unit (HPU)

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.