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The PEARL is the first web enabled economizer, connecting you with the heartbeat of your entire HVAC system. With real-time Online monitoring and automated email/text message of fault detection. Pelican’s intelligent outside air and HVAC management solution delivers energy efficiency and a safe indoor environment guaranteed.

PEARL Economizer and Demand Ventilation Controller

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Control your Economizer, know it is Working

A working economizer saves an average of 42% of HVAC energy costs. The Pelican PEARL guarantees you achieve these savings. The PEARL provides you with virtual real-time and historical knowledge about how and what your economizer is doing - so you are always in control.

Only requires three wires!

The PEARL only requires three wires to connect to your Pelican thermostat. Never pay for the cost to run additional wires just to connect an economizer. Pelican saves you time and money as it is designed to be retrofit friendly.

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Save money, breathing fresh air

Economizers have been used for years by commercial building owners to help economize on their energy use. Economizers subsidize energy costs by not running an A/C when there is free cold air outside. But, 70-80% of economizers are either disabled, do not work, or were never installed. The issue is that past economizers were unreliable and there was no way for you to know if they were working or not. Pelican has changed the economizer industry forever. The PEARL puts control of your economizers right into the palm of your hand. Save money, breathe fresh air, and know how your systems are working. Guaranteed!

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PEARL

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CONTROL THE ECONOMIZER:
A1 - 0-10VDC Economizer Damper Output
A2 - 0-10VDC Variable Speed Fan Output
E - 24VAC Exhaust Fan Output
S1 - 0-10VDC Damper Position Input
S2 - 0-10VDC Future Use Input
TEMPERATURE INPUTS:
T1 - Supply Air Temperature
T2 - Return Air Temperature
T3 - Outside Air Temperature
THREE WIRES TO THERMOSTAT:
D - Data
C - Neutral
R - 24VAC Power
CONTROL THE HVAC UNIT:
Y, W, G, W2, Y2 - 24VAC Outputs
3H/2C Heat Pump or 2H/2C Conventional
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Online Fault Detection & Diagnostics

 

When economizers are working they can save an average of 42% of energy used by your A/C. But, how do you know your economizer is working? The Pelican PEARL provides complete fault detection with diagnostic feedback right to your Pelican Web App. So you know you are saving the energy you should be.

Responsive Economizer Logic

 

The PEARL economizer saves on building cooling costs by using free cool outside air when available. But, the PEARL is the first economizer able to communicate with a space thermostat. This communication allows the PEARL to intelligently understand how its space is reacting to the air it is bringing in. This allows it to increase the use of the economizer anywhere from 2 to 10 times longer than a basic off-the-shelf economizer.

Demand Control Ventilation

 

DCV is a fairly under-utilized approach to reduce energy costs while maintaining indoor air quality. The PEARL is the first Internet enabled economizer with built-in air quality fault detection. Now you can confidently save energy and know spaces are safe to be in. Truly a breath of fresh air.

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Historical Usage Tracking

 

With Internet connection to the PEARL, you now have accurate information based on exactly how each economizer operates in your building. You know you are guaranteed energy savings because you know your economizer is working. This also helps improve maintenance detection and unit errors because you can virtually see exactly how every aspect of your HVAC unit is working.

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Variable Frequency Fan Control

 

A variable speed fan motor running at half-speed (during ventilation periods) uses about one eighth of the electricity it takes to run the same motor at full speed. In other words, you can run a fan with a VFD 8 hours for the same cost as running the same motor for 1 hour at full speed. The PEARL can intelligently modulate your VFD to reduce energy costs and increase comfort in building spaces. 

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Responsive Outside Air Damper

 

The PEARL uses advanced logic to analyze outside air temperature, space temperature, CO2 levels, space demand, and VFD speed to modulate the outside air damper correctly. Advanced logic adds to the overall energy efficiency, air quality, and comfort the PEARL adds to your building's climate.

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Simple Installation

 

The PEARL only requires three wires to connect to your Pelican thermostat. Never pay for the cost of running additional wires just to connect an economizer. Pelican saves you time and money with its retrofit friendly design.

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PEARL

Hardwire: 24VAC, 60Hz; 50mA

Voltage Rating: 23 - 30VAC

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Power

Wiring

Size

Outputs

A1: 0-10 VDC (Actuator Control)

A2: 0-10 VDC (VFD Control)

E: 24 VAC (Exhaust Control)

Y, W, G, Y2, W2: 24VAC

Inputs

S1: 0-10 VDC (Actuator Position)

S2: 0-10 VDC (Future Use)

T1: 10K Type II Probe (Supply Air)

T2: 10K Type II Probe (Return Air)

T3: 10K Type II Probe (Outside Air)

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Height: 5.2 inch (142 mm)

Width: 3.6 inch (91.4 mm)

Depth: 1.1 inch (28 mm)

 

Ranges

Operating Range: -20 deg. F to 160 deg. F

Operating Humidity (% RH): 5 to 90%; non-condensing

Storage Temperature: -20 deg. F to 160 deg. F

 

Included with PEARL

(1) PROBE-T1 (Supply Air)

(2) PROBE-T2 (Return and Outside Air)

(1) Nylon Stand for Outside Air Probe

Mounting Hardware

 

NOTE: DOES NOT INCLUDE ECONOMIZER ACTUATOR

 






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Installation Instructions 

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Product Specification

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Application/Engineering Guides

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Thermostat

Options

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Temperature Only

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TS250H

Temperature and CO2

Temperature, Humidity, & CO2

TS200

TS250

TS250H

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Other

accessories

ta1bubble3

Temperature and Alarm Sensor 

PowerControlModule
PRX1-bubble2

Power Control Module

Wireless Proximity Sensor