cor thermostat 5 User manual

TSTPHA01, Côr® 5
TSTWHA01 Côr® 5C
TSTPRH01, Côr® 7
TSTWRH01 Côr® 7C
Residential Thermostats
Installation Instructions
Côrr7 Non−Wi−Fi,
Côrr7C Wi−Fi Series
(Humidity Control)
Côrr5 Non−Wi−Fi,
Côrr5C Wi−Fi
(No Humidity Control)
Designed in the USA.
NOTE: Read the entire instruction manual before starting the installation.

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TABLE OF CONTENTS
PAGE
SAFETY CONSIDERATIONS 1................................
INTRODUCTION 2..........................................
INSTALLATION CONSIDERATIONS 3..........................
INSTALLATION 6...........................................
SYSTEM START−UP AND CHECKOUT 43......................
OPERATIONAL INFORMATION 52............................
TROUBLESHOOTING 56.....................................
LIST OF WIRING DIAGRAMS 60..............................
WIRING DIAGRAMS 61−76...................................
SAFETY CONSIDERATIONS
Read and follow manufacturer instructions carefully. Follow all local electrical
codes during installation. All wiring must conform to local and national electrical
codes. Improper wiring or installation may damage Thermostat.
Recognize safety information. This is the safety−alert symbol . When you see
this symbol on the equipment and in the instruction manual, be alert to the potential
for personal injury.
Understand the signal words DANGER, WARNING, and CAUTION. These
words are used with the safety−alert symbol. DANGER identifies the most serious
hazards which will result in severe personal injury or death. WARNING signifies a
hazard which could result in personal injury or death. CAUTION is used to identify
unsafe practices which may result in minor personal injury or product and property
damage. NOTE is used to highlight suggestions which will result in enhanced
installation, reliability, or operation.

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INTRODUCTION
The Côr 5 series and Côr 7 series thermostat models are 7−day, 5/2−day, 1−day
programmable wall−mounted, low−voltage controls. The Côr 7 and Côr 7C
combines temperature and humidity control in the units. The Côr Thermostats have
no need for batteries to store user−configured settings in memory. During power
loss its internal memory saves settings for unlimited time, and the clock continues
to run for at least 12 hours.
A Two−Wire Relay Module option for the Côr 7 series thermostats allows them to
connect to a system using only two thermostat wires at the wall. The Two−Wire
Relay Module is located near the indoor equipment and two wires are used between
the thermostat and the Two−Wire Relay Module.
In the Côr thermostat programmable configuration, different heating and cooling
setpoints and times are programmable for 4 periods per day or 2 periods per day.
Programming can be done for 7 days per week, 5/2 days per week, or 1 day. The
programmable thermostat can also be user configured as a non−programmable
thermostat. When operating as non−programmable, the Côr Thermostat will still
have temperature control and in the Côr 7 series, humidity control. The Côr 7 series
Thermostat features Touch−N−Gorsettings for quick and easy temperature change
without complicated programming schedules.

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INSTALLATION CONSIDERATIONS
Power
This Thermostat is powered by 24VAC only. It requires 24VAC (Rh and/or Rc and
C terminals) of the low−voltage transformer to be connected to it for proper
operation. It will not operate without these 2 connections. Rh and Rc are connected
via PCB breakout jumper. See Fig. 1. For applications using two 24VAC
transformers, one in the indoor unit and one in the outdoor unit, connect the
common from each to the C terminal. Connect R from the indoor unit to the Rh
terminal. Connect R from the outdoor unit to the Rc terminal. Then, break jumper
on the circuit board (Fig. 1). The W and HUM signals are taken from the Rh power
and the G signal is taken from the Rc power. If Thermostat has been installed in a
two−transformer application that is later changed to a single−transformer
installation, installer must install a field supplied jumper between Rc and Rh.
Depending on the installation, up to 14 wires may be required. Installation with the
Two−Wire Relay Module is recommended. Only 2 wires are required for
connection between the thermostat on the wall and the Two−Wire Relay Module.
These two wires (V+ and Vg) do not provide ordinary 24VAC. They carry a
combination of power and communications data that is unique to these products.
Fig. 1 −PCB Breakout Jumper

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Models
The Côr 5 and Côr 5C models are temperature control only and the Côr 7 and Côr
7C are temperature and humidity control. All 4 can be configured for AC or HP, 1
or 2−speed compressor, and for Hybrid Heat installations. These thermostats may
be configured as non−programmable if user desires.
Humidify Equipment and Connections
The humidify output connects directly to 24VAC operated humidifiers. An isolation
relay may be required when using powered humidifiers. No other connection or
interlock is required. Any of several installer−selectable operating modes are
available.
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
DO NOT connect furnace HUM terminal directly to Thermidistat
Control HUM terminal. This will bypass furnace safety controls. See
Low Voltage Wiring Diagrams and notes for proper connection.
!WARNING
Dehumidify Equipment and Connections
On the two−wire relay option see (Two−Wire Relay Module Installation
Instructions) The dry contact output connects to the dehumidify input on
variable—speed furnaces and fan coils. Additional dehumidification is done by
controlling the compressor. A variety of operating modes are available. The dry

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contact must be configured for dehumidification in setup SW19. See Wiring
Diagrams for more information.
Outdoor Temperature Sensor (TSTATCCSEN01−B)
Outdoor air temperature sensor is a separate accessory for units installed with the
Two−Wire Relay Module. Optimum performance is obtained when an outdoor
temperature sensor is used with the Côr 7 series thermostat. Plan installation so that
2 wires can be run from the Two−Wire Relay Module to an outdoor location,
preferably on the north side of the house or refer to Installation Instructions
included with the outdoor temperature sensor for simplified connection. The sensor
can be mounted to the outdoor unit and existing control wires may be used for its
connection. Details are provided in sensor instructions.
Remote Indoor Temperature Sensor
A remote temperature sensor may be used with the Two−Wire Relay Module, where
it is desirable to install the Côr 7 series thermostat in a limited access location while
measuring the temperature in the living space. The remote room sensor may be
used as a standalone or averaged with the thermostats local sensor.
Wiring
For all wiring applications, use 22 AWG or larger wire. Continuous wire lengths
over 100 ft. (30.5 m) should use 20 AWG or larger. Wire lengths are not to exceed
250 ft. (76 m) per run.

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INSTALLATION
UNIT DAMAGE HAZARD
Failure to follow the recommended wiring practices could result in
damage to the wall control and personal property.
Improper wiring or installation may damage Thermidistat Control.
Check to make sure wiring is correct before proceeding with
installation or turning on power.
CAUTION
!
Installation Notes:
SNo part of the Thermostat should be installed directly outdoors or in a
cabinet outdoors.
SNever remove the thermostat board from the plastic housing. Doing so
could warp and damage the components on the board.
SThe mounting plate should be mounted to the wall before wires are
attached.
SDuring thermostat installation, provide sufficient excess wiring behind
the mounting plate. Coil the wiring, creating a service loop, and place in
mounting box or behind the wall to remove strain against the terminal
strip. See Fig. 2.

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Fig. 2 −Coil Excess Wiring
Carton contains the following components.
1. Thermostat (Côr5 or 7 series)
2. Anchors and screws
3. Quick Start Guide
4. Installation Instructions
Thermostat Location
Thermostat should be mounted:
SApproximately 5 ft (1.5m) from floor.
SClose to or in a frequently used room, preferably on an inside partition-
ing wall.
SOn a section of wall without pipes or duct work.

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Thermostat should NOT be mounted:
SClose to a window, on an outside wall, or next to a door leading to the
outside.
SExposed to direct light or heat from a lamp, sun, fireplace, or other tem-
perature−radiating objects which could cause a false reading.
SClose to or in direct airflow from supply registers and return−air re-
gisters.
SIn areas with poor air circulation, such as behind a door or in an alcove.
Install Thermostat
ELECTRICAL OPERATION HAZARD
Failure to follow this warning could result in personal injury or death.
Before installing Thermidistat Control, turn off all power to
equipment. There may be more than 1 power disconnect.
!WARNING

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UNIT DAMAGE HAZARD
Failure to follow this caution may result in equipment damage or
improper operation.
Improper wiring or installation may damage Thermidistat Control.
Check to make sure wiring is correct before proceeding with
installation or turning on power.
CAUTION
!
1. Turn off all power to equipment.
2. If an existing thermostat is being replaced:
a. Remove existing thermostat from wall.
b. Disconnect wires from existing thermostat, 1 at a time.
c. As each wire is disconnected, record wire color and terminal marking.
d. New or additional wires may be needed to accommodate C wire or
added humidity output on Côr 7 series.
e. Discard or recycle old thermostat.

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ENVIRONMENTAL HAZARD
Failure to follow this caution may result in environmental damage.
Mercury is a hazardous waste. Federal regulations require that
Mercury be disposed of properly.
CAUTION
!
Fig. 3 −Remove from Backplate
1. Use a small screwdriver to release tabs when removing the backplate (Fig.
3).
2. Route wires through large hole in mounting base. Level mounting base
against wall (for aesthetic value only—Thermostat need not be leveled for
proper operation) and mark wall through any two mounting holes ideally on
opposite sides of the thermostat. With the additional mounting holes you
might be able to reuse existing mounting locations.

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= Mounting Holes
Thermostat
Wire Hole
Fig. 4 −Backplate Mounting
3. Drill two 3/16−in. mounting holes in wall where marked. Thermostat may
be mounted to a standard junction box, if desired. Hole pattern on the Ther-
mostat mounting base matches junction box mounting holes.
4. Secure plastic mounting base to wall with screws and anchors provided.
Use 2 screws and 2 anchors provided for a secure attachment. Make sure all
wires extend through hole in mounting base.
5. Adjust length and routing of each wire to reach proper connector block and
terminal on mounting base with 1/4−in. (6 mm) extra wire.
6. Match and connect equipment wires to proper terminals of each connector
block, being careful not to over tighten the screws.

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Fig. 5 −Secure Wires to Terminal Strip
7. Push any excess wire into wall and against mounting base. Seal hole in wall
to prevent air leaks. Leaks can affect operation and cause incorrect tempera-
ture and/or humidity measurement.
8. Reattach thermostat front to mounting base by first setting aligning the tab
to the bottom of the mounting base and then push top corners of Display
Module to snap into place. See Fig. 6.

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Fig. 6 −Attach Display to Backplate (Bottom First)
9. Turn on power to equipment. On power up, all display segments will light
for 5 sec. and a two digit code appears on the center of the display which
identifies the thermostat equipment type configuration.
a. AC — 1−stage air conditioner with furnace or fan coil
b. HP — 1−stage heat pump with fan coil
c. A2 — 2−stage air conditioner with furnace or fan coil
d. H2 — 2−stage heat pump with fan coil
e. H1 — Hybrid Heat system with 1−stage heat pump
f. H2 — Hybrid Heat system with 2−stage heat pump
g. H — heating only system
h. C — cooling only system

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Set Thermostat Configuration
Configuration options enable the installer to configure the Thermostat for a
particular installation. Most are not presented to the homeowner and therefore must
be properly set by the installer. (Only those marked with an asterisk * below are
available to the homeowner.) The homeowner configurations are described in the
owner’s manual. A special procedure allows entry into the configuration mode.
Selections can be made while in configuration mode. Description of each selection
and how to use the configuration mode follows.
There are two ways to perform Installer Setup
1. Using a Smart Device to setup the thermostat.
2. Through the menus on the thermostat.
A. Using a Smart Device to configure the thermostat and setting up
Wi−Fi
Find your Wi−Fi network from the thermostat
1. On the Côr 7C. If you can’t see the Menu button, Touch START.
2. On either the Côr 5C or 7C, Select MENU.
NOTE: If your Network name is hidden and you need to type in your net-
work or don’t want to setup the Wi−Fi, skip to step 8.
3. Press UP/DOWN until Wi−Fi is blinking.
4. Touch SELECT on Côr 7C, NEXT on Côr 5C.
5. UP/DOWN until SCAN WIFI is blinking, Touch SELECT on Côr 7C,
NEXT on Côr 5C.
6. Use the Up/Dn arrows till your network is showing. (this may take a minute
to load all networks)
7. Once your network is shown, Touch SELECT on Côr 7C, MENU on Côr
5C.

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8. Touch the Up/Dn Arrow until Setup N App is blinking, Touch SELECT on
Côr 7C, NEXT on Côr 5C.
9. UP/DOWN to Enabled.
10. Touch START or DONE to return to Home Screen.
11. To verify the thermostat is ready for setup press the INFO or “i” button till
you see Starting AP or AP Active under the large temperature numbers.
Connect to the thermostat from your smart de-
vice:
1. On your smart device go to the settings and search
for Wi−Fi networks. For example on an iPhone go to
settings > Wi−Fi then under “choose a network” find
the network starting with Cor7 and Serial Number
(example: COR7 S/N 1216N123456) When asked
enter the thermostat password (12345678).
2. Once your device is connected to the Côr thermo-
stat, open a web browser (such as Chrome or Safari)
and enter the corresponding IP address below
a. For Côr 7C –192.168.1.243
b. For Côr 5C –192.168.0.1
3. This will open a web page on the thermostat that
has the following options:
a. Installer Setup
b. Wi−Fi Provisioning
c. Exit
4. Select Installer Setup to set up the thermostat to
the equipment type in your home.
Step 1
Step 4

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Setup the thermostat based on equipment connected.
There a few items that need to be set or verified to ensure the thermostat will
work properly with your equipment.
1. Equipment type SW01:
a. H2— operates a two−speed heat pump with a fan coil
b.HP— operates a single−speed heat pump with a fan coil
c. A2— operates a two−speed AC with a fan coil or furnace
d.AC— operates a single−speed AC with a fan coil or furnace
e. h1— operates a single−speed heat pump with a furnace
f. h2— operates a two−speed heat pump with a furnace
g.H— operates a heat−only system. Furnace or fan coil only;
no outdoor unit.
h.C— operates a cool only−system. Outdoor AC unit with an
indoor fan coil with no strip heaters.

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2. SW04: Fan on with W:
a. Geothermal Heat Pumps Set to “ON”.
b. Most systems are set to “OFF”.
3. Accessory (Humidifier, Dehumidifier). Skip if you don’t have and accessory.
a. No setup required for Humidifier. Humidity levels are set in the
mobile app from the Home Screen.
b. Dehumidifier – SW19: Dry Contact Configuration set to “Dehum”.
4. SW10 Reversing Valve setting (Heat Pump Only): Is reversing valve energized
during Heating or Cooling? Most systems are set to: “Cool”.
5. SW41: Variable Speed Blower: (On, Off).
a. Does your furnace or fan coil (indoor unit) have a variable speed
blower?
b. Most systems are set to: “OFF”.
6. Once all settings have been made, scroll to the bottom of the screen and tap the
Submit button. You will see a Submit successful on the screen with the list of
menu items below.

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Connect the thermostat to Wi−Fi from your smart
device:
5. On your smart device go to the settings and search
for Wi−Fi networks. For example on an iPhone go to
settings > Wi−Fi then under “choose a network” find
the network starting with Cor7 and Serial Number
(example: COR7 S/N 1216N123456)
6. Once your device is connected to the Côr thermo-
stat, open a web browser (such as Chrome or Safari)
and in the address bar type the corresponding IP ad-
dress below:
a. For Côr 7C −192.168.1.243
b. For Côr 5C −192.168.0.1
7. This will open a web page on the thermostat that
has the following options:
a. Installer Setup
b. Wi−Fi Provisioning
c. Exit
8. Select Wi−Fi Provisioning to connect the thermo-
stat to the internet for weather, energy management
reports and other features available from the mobile
app.
Step 5
Step 8

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1. If the network was selected from the scan list on
the thermostat it will be in the box Wi−Fi name. If it’s
not there, enter your Wi−Fi network name. (names
are case sensitive)
2. Enter your Wi−Fi network password. (passwords
are case sensitive)
3. Typically you won’t have to change Router Securi-
ty but you can if needed.
4. All other options below are for advanced users
with customized networks.
5. Check the “Connect to Router after Submit”
box.
6. Touch Submit button to finish setup and close the
web page to begin connecting to the internet. This
may take a few minutes.
7. The connection is complete once the Wi−Fi sym-
bol at the top center of the screen has been filled in. Step 1