
Pelican Pearl (1000 PPM Setting)
Demand Control Ventilation (DCV) controllers integrate with the building ventilation system to modulate the amount of outdoor air based on input from a CO2 sensor. They can be used to save energy during low occupancy and improve indoor air quality during high occupancy.
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Pelican Pearl (1000 PPM Setting)
Ventilation system controller with economizer and CO2-based demand control ventilation capabilities. The device may be configured and monitored wirelessly with Pelican’s Site Manager. We evaluated two settings of this model (the default 800 PPM setting and a 1000 PPM setting).
Hub Highlights:
- No on-board display, all information and commissioning done on a web browser via cloud connection.
- Proprietary wireless connection with API available.
- Good performance on Hub CO2 accuracy testing protocols
Last Edited on: Jul 26, 2022
Model number | Z24 Wireless Zone Controller |
Power Supply | 24 VAC, 50/60 Hz |
CO2 Sensor Compatibility | Only compatible with Pelican thermostats: TS200, TS250, TS200H, TS250H). |
Controller CO2 Sensor Input Signal Types | Pelican wireless |
Actuator Signal Output Types | 0-10 VDC |
Nominal Power Consumption | Not specified. |
Economizer Control Options | Single dry bulb change over, Single enthalpy change over, Differential dry bulb change over |
Other Inputs | Additional analog inputs include the supply air temperature, the return air temperature, the outdoor air temperature, and damper feedback position. |
Other Outputs | Additional analog outputs include varaible frequency drive. Additional binary outputs include first cooling stage command (Y1), second cooling stage command (Y2), first heating stage command (W1), second heating stage command (W2), fan command (G). The thermostat commands may be configured for to control a heat pump with two compressor stages and auxiliary heating. |
Controller Configuration Method | Pelican wireless communication |
Controller Response to CO2 Sensor Failure/Power Loss | The control logic stops running. DCV settings are maintained in memory and restored when power is restored. Alarms are sent via email, text, and/or displayed on the Pelican Web App. |
Manufacturer Reported Control Algorithm Details | None found |
Supported Communication Protocols | Wifi communication. |
Last Edited on: Jul 26, 2022
Date of Test | April 2021 |
Number of Tests | 6 |
Setting | 1000 PPM |
Average Fraction of Time Underventilated | 48% |
Average Elevated CO2 During Underventilation (ppm) | 168 |
Average Fraction of Time Overventilated | <1% |
Average Lowered CO2 During Overventilation (ppm) | -14 |
Average Fraction of Time At Target Ventilation Rate | 52% |
DCVC Full Results | See Table |
Last Edited on: Jul 26, 2022
User interface
Describe interface for commissioning.
Web interface.
User interface
Describe the settings for the device.
Minimum damper position, maximum damper position, CO2 concentration at which damper increases above minimum.
User interface
Does the controller have alarm capability to notify facilities of a problem? If yes, describe.
Yes - Alarm information is stored on the device. Alarm flashes LED on device. Web portal presents alarms and allows for notifications to be configured.
Installation
Does the controller require specialized software for installation? If yes, describe
Yes - Requires connecting to gateway and logging into web portal for setup
Installation
Does the controller require specialized training for installation? If yes, describe
No
Installation
What is the resolution for CO2 setpoint?
Any interval
Installation
How is damper position specified?
Percentage
Installation
Can the CO2 sensor be universal or manufacturer specific?
Manufacturer specific
Installation
Can you specify sensor calibration to correct for sensor error in the DCV system controller?
No
Integration capabilities
Can the controller interface (beyond dry contacts) with a building automation system (BAS)? If yes, describe if integration capabilities are vendor specific.
Yes - Pelican BAS and Pelican Pearl DCV controller only
Integration capabilities
If the controller can interface with a BAS, is additional hardware required? If yes, describe.
No
Operation
Does the controller require on-going maintenance? If yes, describe?
No
Integration capabilities, Reporting capabilities
How can the controller data logged? If proprietary software, describe (what type of account is needed, what logging intervals are available, what does it look like, and describe its capabilities including data download capabilities).
Wifi with proprietary software. The site manager allows viewing historical data via graphs. Data collection interval is automated and not adjustable. Data can not be downloaded from the website.
