Pelican PEARL Installation Manual

PEARL Economizer Controller

Pelican

Wireless Systems

Installation Guide

Pelican Wireless Systems, 2655 Collier Canyon Rd. Livermore, CA 94551
Phone: [phone]
Email: [e-mail] Website: www.PelicanWireless.com

Caution

The PEARL is an add-on accessory to the Pelican thermostat
(TS200 or TS250). It provides inputs, outputs and logic that allow
for intelligent economization and demand ventilation control.

The PEARL is designed to control most 24VAC HVAC systems,
including: gas, electric, oil, heat pump, and forced air. It is also
designed to control 0-10VDC variable speed fans and modulating
economizer damper actuators.

Failure to follow these instructions or improper installation,
service, adjustments, maintenance, and/or use can result in
personal injury, damage to personal property, and/or cause a
hazardous and dangerous situation. Consult a qualified installer,
distributor, or Pelican Wireless Systems for assistance or support.
Follow all safety codes and regulations and all local and state
building codes. Read instructions thoroughly and follow any
warnings or notes.

Disconnect power during the installation of this product. All wiring
must conform to local and state codes and ordinances. The
PEARL is designed to communicate with Pelican products only.
This guide is designed to assist Pelican Certified Contractors on
installing the PEARL for economizer damper control and/or
demand control ventilation applications. For Certification
assistance or other support questions contact Pelican Support at

888.512.0490.

Compatibility

1

Table of Contents

2

Installation and Mounting

Wiring

Start Up

Status Lights

Actuator Calibration

Setup and Configuration

Troubleshooting

Sequence of Operations

3

6

15

16

17

18

20

21

Begin by removing the cover of
your Pelican Thermostat
(TS200 or TS250). To remove
the cover, gently pull the
thermostat faceplate away from
the back plate.

Rc

CD R

R

C

D

Y W G W Y2 2

TS200

or

Pelican

Wireless Systems

Wiring Module

Model: WM500
Power: 24-30 VAC

PelicanWireless.com

Rc

CD R

R

C

D

Y W G W Y

2 2

TS250

Pelican

Wireless Systems

Wiring Module

Model: WM500
Power: 24-30 VAC

PelicanWireless.com

Electrical Panel Electrical Switch

or

This will protect you, the HVAC
equipment, and prevent
electrical faults. This step is
required for safety.

1. Switch off power

on

off

Loosen the R and Rc terminals
to remove the jumper (save
jumper). Loosen R, C, D
terminals on WM500. Gently
slide WM500 to the right to
remove.

3. Remove the wire
module (WM500) from
the thermostat base

CD R

Rc

R

C

D

Y W G W Y2 2

Pelican

Wireless Systems

Wiring Module

Model: WM500
Power: 24-30 VAC

PelicanWireless.com

Gently push WM500 all the way
into the PEARL. Install jumper
between R and Rc and tighten.
Tighten R, C, D terminals on
WM500.

4. Insert the WM500
into the PEARL

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

loosen

tighten

2. Remove the Pelican
thermostat faceplate

3

Old thermostat

CD R

Remove old thermostat

5. Mount thermostat
sub-base onto the wall

Option Two:
mount on horizontal
electrical box

Option One:
standard mounting holes
(use dry wall anchors if
needed)

Record which wires used for
each terminal. These wires will
connect to the same terminals
at the PEARL.

6. Connect 3 unique
wires to D, C, and R
terminals

Line up the three pin male
connector on the thermostat
faceplate’s electrical board with
the three pin female connector
on the thermostat sub-base.
Gently press the thermostat
front plate onto the mounted
sub-base.

7. Attach thermostat
faceplate

CD R

4

The PEARL should be mounted inside
the HVAC equipment or enclosed in a
water tight location. Mount in a location
with easy access to control wiring and
service.

Inside HVAC
unit

Supply Air
Temperature
Probe

Return Air
Temperature
Probe

PEARL

Economizer

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

Outside
Air Probe
Mounted in
Economizer

8. Install the PEARL inside the HVAC
equipment

5

The PEARL has three terminal blocks. Refer to
the following charts and wiring diagrams for
proper connections.

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

Right

Terminal Block

Left-Bottom

Terminal Block

Left-Top

Terminal Block

6

Heat Pump Control (Right Terminals)Conventional Control (Right Terminals)

ECONOMIZER ACTUATOR (output)

VARIABLE FREQUENCY DRIVE (output)

24VAC ENABLE OUTPUT

COMMON

ACTUATOR FEEDBACK (input)

0-10VDC INPUT

A1

A2

E

C

S1

S2

0-10 Out

0-10 Out

24V Out

NEUTRAL

0-10 In

0-10 In

T1

T2

T3

SAT

RAT

OAT

SUPPLY TEMPERATURE

RETURN TEMPERATURE

OUTSIDE AIR TEMPERATURE

CAUTION: Do NOT connect 24V or any
other electrical voltage to these terminals.

!

Economizer and VFD Control (Left-Top Terminal Block)

10K Type II Temperature Probe Inputs (Left-Bottom Terminal Block)

D
C
R

DATA

COMMON

24VAC PWR

24VAC

Rc

Y

W

G

COOL STAGE 1

HEAT STAGE 1

FAN or 24V VFD ENABLE

W2

Y2

HEAT STAGE 2

COOL STAGE 2

D
C
R

DATA

COMMON

24VAC PWR

24VAC

Rc

Y

W

G

COMPRESSOR STAGE 1

REVERSING VALVE (O/B)

FAN or 24V VFD ENABLE

W2

Y2

AUXILIARY HEAT

COMPRESSOR STAGE 2

7

Conventional Unit Wiring
(Right Terminal Block)

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

ROOF TOP UNIT

R

C

Y1 W1 G

Y2 W2

CD R

THERMOSTAT

NOTE: "G" 24V output
can also be used to
enable a VFD.

!

8

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

ROOF TOP UNIT

R

C

Y1 O/B G

Y2 AUX

CD R

THERMOSTAT

NOTE: "G" 24V output
can also be used to
enable a VFD.

!

Heat Pump Unit Wiring
(Right Terminal Block)

9

Economizer Actuator Wiring
(Left-Top Terminal Block)

Economizer Actuator

Connect actuator power to
the same 24VAC power
source as the PEARL.

Pearl

Economizer

Controller

D
C
R

A1

A2

E

C

S1

S2

ACT

AUX

ENA

COM

POS

EXT

0-10 Out

0-10 Out

24V Out

0-10 In

0-10 In

DATA

COM

PWR

T1

T2

T3

SAT

RAT

OAT

STATUS

MOVE

TEST

Pelican

Wireless Systems

Rc Y W G W2 Y2

R C D

PelicanWireless.com

Pelican

Wireless Systems

Wiring Module

Model: WM500

Power: 24-30 VAC

1

2

3

4

- Common

+ Hot

0-10VDC In

0-10VDC Out

NOTE: Actuator position
feedback (S1) is required
for Fault Detection and
Auto-Configuration.

!

10