HVAC rule is a set of controls set by the user (facility manager) to (control) a specific HVAC workspace(zone). These HVAC rules use various input parameters such as occupancy, time of the day/ week as part of the decision matrix to alter the device behavior.

There are two types of HVAC Rules provided:

1. Indoor Unit Rule (IR, VRF systems)

2. Variable Air Volume (VAV) Rule

Indoor Unit Rule

Applicable for: Indoor HVAC units that are Infra-Red (IR) enabled and VRF systems

For indoor unit devices that are Infra-Red (IR) enabled or VRF systems various functions of the devices can be configured, such as temperature control, functional mode, fan speed, etc.  

---

Adding New Indoor Unit Rule: 

1. Log in to your IQnext account with Administrator Privileges 

2. Go to Settings > IQnext Settings > HVAC Rule (under Device Rule) > Indoor Unit Rule

3. On the HVAC Rules page, click on the Add button in the top right corner. Select Indoor Unit. You will be navigated to another page.

4. In the New HVAC Rule Page, enter a name and description of the rule.

5. Now there are 4 tabs - Default, Override Configuration 1, Override Configuration 2, Override Configuration 3 

Default rule

1. Under the Default Rule tab, under the Action when the zone is occupied section, enter the following details: 

1. Select Turn ON AC, Turn OFF AC or Take no action based on what you want the HVAC to do when the zone is occupied and vice versa.

2. To turn on AC - you will need to provide the temperature setpoint, AC mode, Fan speed and Swing mode options

     2. under the Action when the zone is unoccupied section, follow the above process.

     3. Click on Save 

     4. If you want to apply override configuration, click on override configuration 1 button

Override Configuration Rule 

1. After saving the default rule, you add the desired configurations that will override the default rule. 

2. If you want to enable the override configuration, Select the Enable Config box. (if the checkbox is not selected, the rule will be disabled)

      

3. Select the working days of the week for when this rule should be applied. 

4. Enter the start time for which this override should commence.

5. Enter the end time for which this override config should end. 

6. Select Turn ON AC, Turn OFF AC or Take no action based on what you want the HVAC to do when the zone is occupied and vice versa.

Similarly, you can apply Override Configuration 2 and Override Configuration 3

---

Adding VAV Rules

Applicable for: VAV units that function over BACnet/IP

---

Default Rule

1. Under the Default Rule tab, under Action when the zone is occupied, enter the Upper Setpoint (16°C - 31°C) temperature and Lower Setpoint (16°C - 31°C) temperature at which you want the VAV to operate.

Note - For single setpoint VAVs only upper setpoint will be considered

2. Under Action when the zone is the unoccupied section, enter the Upper Setpoint (16°C - 31°C) temperature and Lower Setpoint (16°C - 31°C) temperature at which you want the VAV to operate.

Note - For single setpoint VAVs only upper setpoint will be considered

          

Override Configuration Rule 

1. After saving the default rule, you add the desired configurations that will override the default rule. 

2. If you want to enable the override configuration, Select the Enable Config box. (if the checkbox is not selected, the rule will be disabled)

3. Select the working days of the week for when this rule should be applied. 

4. Enter the start time for which this override should commence.

5. Enter the end time for which this override config should end. 

6. Follow the same steps as you would for the default section

7. Click  Save. 

Similarly, you can apply Override Configuration 2 and Override Configuration 3

---