Pelican TC4 User manual
!
Commercial Connected Thermostat
with Humidity and CO2
Installation Guide
PELICAN
Model: TC4
Before you start
Review all instructions before starting to avoid discovering or creating any
issues during installation. This thermostat is designed to be installed on 24
VAC systems only.
This thermostat is designed to be installed by a licensed professional.
A Pelican Gateway must be used with this thermostat. The thermostat cannot
the gateway prior to installing this product.
Installation location
NEVER INSTALL IN AN ENCLOSED METAL BOX OR ON A METAL SURFACE.
Install in a location where it can communicate with the Pelican wireless mesh
network.
temperature.
equipment, or other metal objects.
this thermostat is going to be wired to.
master power.
Replacing an existing wired thermostat
Remove the cover from the old
thermostat and either take a picture
or label the wires as a guide for wiring
the new Pelican thermostat.
Uninstall the old thermostat and set
aside.
Installing a Pelican thermostat in a new location
This Pelican thermostat is designed to
vertical 1-gang electrical box.
Choose a mounting location where
the thermostat:
is at least 48" to 60"
is on an interior wall.
where it can detect the temperature
of the room it will be maintaining.
and is away from sun exposure or
ON
OFF
2
Install the thermostat back plate
Feed thermostat wire
through opening on back
plate.
Limited Wires? No Common Wire?
Follow pages 4 - 5 for limited wire instructions.
Follow pages 8 – 16 for common
thermostat wiring guides.
Connect wires to thermostat
wall installation
Use provided machine screws.
Drill two 3/16" holes (if using drywall
anchors).
Install provided drywall
anchors (if required).
Use provided sheet metal screws.
electrical box installation
Vertical electrical
box.
3
Use the included screws to attach the thermostat to the
wall following one of the examples below:
4
Some installations have limited wires
between the thermostat and the HVAC
Module can be used to control the
HVAC equipment without having to
run new or additional wires to the
thermostat.
This installation requires at least three
(3) wires between the thermostat and
okay).
This accommodates a maximum wire
distance of 500 feet between the
Step 1: Remove the Wiring Module
from the thermostat’s back plate.
Loosen the (R), (C), and (D) terminals
from the three pin connector) to
remove.
Step 2: Install the Wiring Module in
the HVAC equipment.
Locate the HVAC equipment’s
control board. Using new wire,
terminals to the corresponding
low-voltage input terminals on the
HVAC control board.
Follow the wiring diagrams from
Pages 8 – 16.
HVAC Control Board
Wiring Module
Wiring Module
Loosen
terminals.
Three pin
connector
Y2
W2
G
W
Y
R
C
Dh
Hu
Use a sheet metal
screw to secure the
5
Step 3: Connect Wiring Module to thermostat.
the matching (R), (C), and (D) terminals at the thermostat’s back plate.
HVAC Control Board
Wiring Module mounted at control board.
Thermostat back plate mounted in room.
Y2
W2
G
W
Y
R
C
Dh
Hu
Maximum 500'
unshielded 18 gauge thermostat
wire.
6
there are three (3) alignment
pins found on the left and right
sides of the base plate.
Attach the display
Before attaching the display, write
down the serial number on the screen
for use when configuring the
thermostat.
Align the display with the back plate’s
alignment pins. Press into back plate
until it clicks into place.
Switch on the power to the HVAC
equipment the thermostat is wired to.
If your Pelican thermostat does not
power on, see page 17 for assistance.
See page 19 for instructions on setting
the thermostat for Conventional or Heat
Pump control.
Optional: Tamper Resistant Lock
The thermostat contains an internal
locking mechanism to secure the display
to the back plate. This is intended to keep
unauthorized individuals from tampering
with the power and thermostat wire.
To engage the lock, assemble the
thermostat and insert a 1/8"
screwdriver into the hole on the left side
of the thermostat. Push in slightly and
rotate 1/4 turn clockwise until reaching
the stop. Remove the screwdriver from
the hole.
To disengage, insert a 1/8"
screwdriver into the hole on the left side
of the thermostat. Rotate 1/4 turn
counter-clockwise until reaching the stop.
Remove the screwdriver from the hole.
Do NOT force the display from the back
plate otherwise damage may occur.
7
DATA
COMMON
COOL STAGE 1
HEAT STAGE 1
FAN
HEAT STAGE 2
COOL STAGE 2
HUMIDIFY
DEHUMIDIFY
D
C
R
Y
G
Y2
Hu
Dh
DATA
COMMON
COMPRESSOR STAGE 1
REVERSING VALVE (O/b)
FAN
AUXILIARY HEAT
COMPRESSOR STAGE 2
HUMIDIFY
DEHUMIDIFY
D
C
R
Y
G
Y2
Hu
Dh
Conventional
DATA
COMMON
VALVE OPEN
UNUSED
FAN
AUXILIARY HEAT
VALVE CLOSE
HUMIDIFY
DEHUMIDIFY
D
C
R
Y
G
Y2
Hu
Dh
Two-Pipe Fan Coil
DATA
COMMON
CHILLED VALVE OPEN
HOT VALVE OPEN
FAN
HOT VALVE CLOSE
CHILLED VALVE CLOSE
HUMIDIFY
DEHUMIDIFY
D
C
R
Y
G
Y2
Hu
Dh
Four-Pipe Fan Coil
Heat Pump
For conventional heating and cooling systems, see pages 8 - 9
For heat pumps, see pages 10 - 11
For two-pipe fan coils, see pages 12 - 13
For four-pipe fan coils, see pages 14 - 15
For humidity control, see page 16
For zone damper control, see separate installation guide Zone Damper Control.
For installations that are outside of this installation guide, STOP INSTALLING
THE THERMOSTAT, and contact Pelican Sales Engineering Support for further
assistance at 888.512.0490.
24 VAC Terminal Block Designations
8
Conventional Heating and Cooling Systems
(Up to 2 stages each)
2nd Stage Cooling
2nd Stage Heating
Supply Fan
1st Stage Heating
1st Stage Cooling
24 VAC Common
24 VAC Power
Y2
W2
G
W
Y
C
R
2
4
4a
Notes can be found on page 17.
1
9
Conventional Heating and Cooling Systems
(Up to 1 stages cool, 2 stages heat, and 2 speed fan)
G2
W2
G
W
Y
C
R
High Speed Supply Fan
2nd Stage Heating
Low Speed Supply Fan
1st Stage Heating
1st Stage Cooling
24 VAC Common
24 VAC Power
Notes can be found on page 17.
4
4a
2
1
10
Heat Pump Systems
(Up to 2 stages each and Auxiliary/Emergency Heat)
Y2
W2
G
O/b
Y
C
R
2nd Stage Compressor
AUX/Emergency Heat
Supply Fan
Reversing Valve
1st Stage Compressor
24 VAC Common
24 VAC Power
Notes can be found on page 17.
4
4a
2
1
11
Heat Pump Systems
(Up to 1 stages each, 2 speed fan, and Auxiliary/Emergency Heat)
G2
W2
G
O/b
Y
C
R
High Speed Supply Fan
AUX/Emergency Heat
Low Speed Supply Fan
Reversing Valve
1st Stage Compressor
24 VAC Common
24 VAC Power
Notes can be found on page 17.
4
4a
2
1
12
Two-Pipe Fan Coils*
2
W2
G
W
1
C
R
AUX/Emergency Heat
Supply Fan
(Unused)
24 VAC Common
24 VAC Power
5
Notes can be found on page 17.
4
4a
2
1
13
Two-Pipe Fan Coils*
(Power-open/spring-return water valve and 2 speed fan)
G2
W2
G
W
1
C
R
High Speed Supply Fan
AUX/Emergency Heat
Low Speed Supply Fan
(Unused)
24 VAC Common
24 VAC Power
Notes can be found on page 17.
4
4a
2
1
14
Four-Pipe Fan Coils
4
3
G
2
1
C
R
Supply Fan
24 VAC Common
24 VAC Power
5
Notes can be found on page 17.
4
4a
2
1
15
Four-Pipe Fan Coils
(Power-open/spring-return water valves and 2 speed fan)
G2
W2
G
W
1
C
R
High Speed Supply Fan
AUX/Emergency Heat
Low Speed Supply Fan
24 VAC Common
24 VAC Power
Notes can be found on page 17.
1
4
4a
2
16
Humidity Control
(Humidify and/or Dehumidify)
Dh
Hu
1
3
Notes can be found on page 17.
4
4a
17
If the Pelican thermostat does not power on, check the following:
1. Check that all wires are properly inserted into the terminal blocks at the thermostat and
at the HVAC equipment. Lightly pull on the wires to make sure they are not loose.
2. Use a multi-meter to ensure that 24 VAC power is being supplied by HVAC equipment. If
24 VAC is not found, check that the master power has been turned back on for the HVAC
equipment or verify that the HVAC electrical breaker has not tripped. If the breaker has
tripped contact a Licensed Professional to assist, otherwise damage can occur to the
equipment or you can get hurt.
3. Use a multi-meter to ensure that 24 VAC power is found at the thermostat. If 24 VAC
was not found, but is found at the HVAC equipment, check for loose or spliced wires.
If the thermostat still does not power on, contact Pelican technical support for further
assistance at 888.512.0490.
If the Pelican thermostat does not show up on the Pelican App, check the following:
1. Check the thermostat upper right hand corner.
If you see this symbol then the thermostat is unable to connect to your Pelican
• Finish installing all your other Pelican thermostats and/or devices.
• Verify your Pelican thermostat is not in a metal enclosure and that there are no metal
Mesh Network, but your Pelican Gateway is unable to reach the Internet.
• Check your Pelican Gateway to verify it is installed, powered on, and has Internet
connection.
If you are unable to get the thermostat to connect to the wireless mesh network or
Internet, contact Pelican technical support for further assistance at 888.512.0490.
Troubleshooting
Connect to 24 VAC class 2 circuits only.
Latching relays are rated for 24 VAC @ 2 amps continuous load.
Latching relays are rated for 24 VAC @ 1 amp continuous load.
All wire to be installed by customer in accordance with local electrical
codes.
Use 18 gauge unshielded thermostat wire.
1
2
3
4
4a
5
Notes
18
Thermostat Info Page
If the Pelican thermostat does not power on, check the following:
1. Check that all wires are properly inserted into the terminal blocks at the thermostat and
at the HVAC equipment. Lightly pull on the wires to make sure they are not loose.
2. Use a multi-meter to ensure that 24 VAC power is being supplied by HVAC equipment. If
24 VAC is not found, check that the master power has been turned back on for the HVAC
equipment or verify that the HVAC electrical breaker has not tripped. If the breaker has
tripped contact a Licensed Professional to assist, otherwise damage can occur to the
equipment or you can get hurt.
3. Use a multi-meter to ensure that 24 VAC power is found at the thermostat. If 24 VAC
was not found, but is found at the HVAC equipment, check for loose or spliced wires.
If the thermostat still does not power on, contact Pelican technical support for further
assistance at 888.512.0490.
If the Pelican thermostat does not show up on the Pelican App, check the following:
1. Check the thermostat upper right hand corner.
If you see this symbol then the thermostat is unable to connect to your Pelican
• Finish installing all your other Pelican thermostats and/or devices.
To access the thermostat info, touch Touch to adjust and then press the icon in
the upper right hand corner of the screen.
Serial Number
and name this thermostat.
Thermostat Name:
Configuration:
Humidity Setting:
If humidity control is enabled, the thermostat’s humidity set-point will be shown under this heading.
The set-point can be adjusted by touching the adjust button. Otherwise, if humidity control is
CO2Sensor Reading:
This is the room’s current carbon dioxide (CO
Model Number:
This is the model number of this thermostat.
Alarm Notifications:
If there are any icons in the upper right hand corner of the thermostat, the Info page will identify the
issue detected. Follow the troubleshooting guide on page 16 for assistance.
• Verify your Pelican thermostat is not in a metal enclosure and that there are no metal
Mesh Network, but your Pelican Gateway is unable to reach the Internet.
• Check your Pelican Gateway to verify it is installed, powered on, and has Internet
connection.
If you are unable to get the thermostat to connect to the wireless mesh network or
Internet, contact Pelican technical support for further assistance at 888.512.0490.
will allows you to set it to Conventional or Heat Pump control. This can also be done
at anytime through the Pelican App.
Touch to adjust and then press the icon in
the upper right hand corner of the screen.
Under Configuration
Conventional).
change button to the right of Configuration.
Then touch Conventional, Heat Pump (O), or Heat Pump (B) and press Save at the
Cancel at the
bottom of the screen.
19
www.pelicanwireless.com
Phone: 888.512.0490 TC4 37-2251 REV 03
PELICAN
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