Radio Thermostat CT80 Manuel utilisateur

PG 1

Install Guide CT80

• The thermostat is a precise instrument, handle with care.

• Turn off electricity to the HVAC system before installing

or servicing thermostat or any part of the system.

• Do not turn electricity back on until work is completed.

• Do not short (jumper) across electric terminals at the

control on the furnace or air conditioner to test the

system. This may damage the thermostat.

• All wiring must conform to local codes and ordinances.

• This thermostat is designed for use with 24VAC and

millivolt systems (with a separate 24VAC power adapter).

• The thermostat relay load should be limited to 1.0 amp;

higher amperage may cause damage to the thermostat.

To avoid electrical shock and to prevent damage to the

furnace, air conditioner, and thermostat, disconnect the

power supply before beginning work. This can be done at

the circuit breaker, or at the HVAC system.

Caution

ENGLISH

Caution

Save

Energy

button

Power Grid

status

indicator

top cover

Touch screen

Wire

terminals

RC-RH�

Connect Switch

Increase

temp

button

Home

button

Mode

button

Lower

temp

button

Reset

button

bottom

cover

statu

HVAC

Filter

status

FAN

HEAT

CHECK

FILTER

SAVE

ENERGY

COOL

pn812-003-002 b2

button

PG 2

You will need a small Phillips screwdriver and a drill with 3/16-in. (4.8mm) bit for wall mounts.

Replacement installations - mount the CT80 in place of the thermostat. You must have a “C” wire or

other 24VAC power available at the CT80 location. A new location will require moving your wiring.

New installations and for relocating the CT80 - follow the guidelines listed below:

• Locate the thermostat on an inside wall, about 5 ft. (1.5m) above the oor, and in a room that

is used often.

• Do not install it where there are unusual heating conditions, such as: in direct sunlight; near

a lamp, radio, television, radiator register, replace; near hot water pipes in a wall; or near a

stove on the other side of a wall.

• Do not locate in unusual cooling conditions, such as: on a wall

separating an unheated room; or in a draft from a stairwell, door,

or window.

• Do not locate in a damp area. This can lead to corrosion that will

shorten thermostat life.

• Do not locate where air circulation is poor, such as: in a corner, an

alcove; behind an open door.

• Do not install the CT80 until all construction and painting has

been completed.

• This thermostat does not require leveling.

TOOLS

LOCATION

Good

5ft.

(1.5m)

PG 2

PG 3

Switch OFF electricity to the furnace and air conditioner; then follow these steps.

• Remove cover from old thermostat. Most are snap-on types and simply pull off. Some have locking

screws on the side or front. These must be loosened. DO NOT remove wires. Note the letters

printed near the terminals. Attach labels (enclosed) to each wire for identication.

Read instructions carefully before removing any wiring from

existing thermostat. Wires must be labeled before they are

removed. THERE IS NO STANDARD COLOR CODE. When remov-

ing wires from their terminals, ignore the color of the wires and

LABEL THEM by the terminal where they were screwed.

• Label the wires one at a time. You must label all the wires

before you proceed. With all wires labeled, remove them from

the old unit.

• Make sure the wires do not fall back inside the wall. You can

wind them around a pencil to keep them from falling.

• Loosen all screws on the old thermostat and remove it from the

wall.

REMOVE OLD UNIT

Caution

PG 4

What wires do you have?

Make sure your wires are labeled. This may require you to nd the ‘other end’ connection for each

wire on your heating or air conditioning equipment and read the label there. Refer to the Wire

Reference page at end of install section for better understanding of

wire labels from different HVAC system makers.

IMPORTANT: The CT80 requires constant 24VAC power from the

HVAC system’s “C wire”. If you do not have a C wire you can run a new

wire from the HVAC or use a standard 24VAC 100mA or greater wall

transformer.

IMPORTANT: If you have both RH and RC wires you need to move

the RC/RH switch to the UP position which separates these terminals.

Prepare Wires

Please follow these guidelines for safe and secure wire connections:

• You will need at least 2.6” of wire for each of your connections to the CT80.

• If you do not have enough wire, splice additional wire to allow enough slack.

• Terminals accept wires from 16-22awg.

• Fan out wires below the hole as shown.

• Remove insulation 1/8” from the tip of each wire.

Wire Terminals

CYR

2.6"

PG 4

PG 5

Find the step-by-step diagram for your system • Select the reference page with your

wiring diagram and set-up

information below.

• The C-wire is required to operate

your CT80. If you do not have a

C wire you will need to provide an

alternate source of 24VAC power to

the unit.

• If your combination of wires is

shown here, you can use the wiring

table at the end of the install section

to determine your connections, or

contact customer support for help.

• When handling, take care not to

damage the labels for each wire.

W Y

RH RC G

6 Wire

Heat/Cool

From

HVAC

CYRH

W Y R G

5 Wire

Heat/Cool

From

HVAC

W R G

4 Wire

Heat

From

HVAC

CRG

From

HVAC

W R

3 Wire

Heat

WIRES

Wn Yn R G

Multi-stage Cool

From

HVAC

B or O AUXn

YnRG

Multi-stage

Heat Pump

Multi-stage

Multi-stage Heat

Aux Heat

From

HVAC

AUXn

B or O Y R G

w/o Aux Heat

From

HVAC

WIRES

Go To page

G o To page

Heat Pump

PG 6

• “Fan out” wires as illustrated with CT80 below the wall

opening. As in the example: fan out the wires so that the

C wire is above the C terminal, the W above the W. This

allows the CT80 to t snug to the wall.

Caution

Do not allow wires to touch each other or parts on thermostat.

• Wires will position behind the CT80 and up over the

terminal area.

• Do not bunch wires behind the CT80. Feed any slack

back into the wall opening.

Connect Your Wires

• Connect labeled wires only to a terminal with the same

letter label.

• Insert the wire in the terminal well and tighten the screw securely.

NOTE: If you wish you can mount the CT80 to the wall rst, and then connect the wires.

• The CT80 can be externally powered with a power source rated for 24V, AC or DC, at 300ma or

greater. If used, connect to the C and RH terminals (no polarity).

YRH

from HEAT/COOL system

PG 6

PG 7

Mount the CT80 to Wall

1. Hold the CT80 against the wall, with the wires coming over the

top; above terminal block. The CT80 will cover the hole in the wall.

2. Position CT80 for best appearance.

3. Attach the CT80 to the wall with the screws provided.

4. If you are mounting the CT80 to sheet rock or if you are using the

old mounting holes, use the plastic anchors provided.

5. Mark rst and drill a 3/16-in.(4.8mm) hole for the insert at each

screw location, then mount the unit.

YRH

Wall

Wires

Wall

anchor

CT80

Screw to wall

Place wires like this

inside wire groove

from

HEAT/COOL

system

PG 8

Turn ON Power With all the wires connected (including the C wire), it is time

to turn the AC power back on. Do this at the breaker you used to switch it off. The CT80 will power-up

in the control OFF mode. Your CT80 is not congured to operate your HVAC system yet. You must

now use the menu driven HVAC SET-UP function.

HVAC setup

IMPORTANT: Make sure the CT80 is powered up and is in the OFF mode before set-up. (To turn

your thermostat off, press the Mode button in the middle of the control bar to the right of the display and

touch OFF). Heat and Cool systems must be congured separately (except with Heat Pumps).

The CT80 uses an easy to use interview to determine the proper setup for your HVAC system.

You must know what type of HVAC system you have before answering the interview questions.

If you are not sure, go to the HVAC unit and determine the make and model then get a manual

for the system.

If you are experienced with HVAC systems, you can use the FASTSET single page setup to set

all functions on one screen.

Interview setup - You will need to be able to answer these questions -

“Do you want to congure HEAT or COOL? (Touch one)

Do you have a NORMAL heating system or a HEAT PUMP system?

PG 8

PG 9

Is your heat GAS/OIL or ELECTRIC?

Is your system multi-stage? No 2 Stages 3 Stages

Thank you, your thermostat is congured to control your HEATing.

Congure COOL?

How many stages of A/C do you have? 1 stage 2 stage

Thank you, your thermostat is congured to control your COOLing.”

If you have a HEAT PUMP system you will be asked these questions -

“Is your heat pump multi-stage? 1 stage 2 stage

Do you have auxiliary heat? YES or NO

(if yes) What kind of aux heat do you have? ELEC or GAS/OIL

How many stages of aux heat do you have? 1 stage 2 stage 3stage

(Maximum of 5 stages total pump and aux)

Thank you, your thermostat is congured to control your heating and cooling.”

When you have completed set-up completing interview go to pg 11

and test your installation.

FASTSET for NORMAL systems (not a heat pump):

1. Press the purple MENU button on the control bar and then touch

HVAC SET-UP.

2. Touch to highlight HEAT in the upper left corner of the display.

3. Touch to highlight NORMAL.

12:30pm WED7 7.

HEAT PUMP

HEAT

or COOL

NORMAL

AUXILIARY

ELECT or GAS-OILAUX

BACK<INTERVIEW>>

HVAC SET-UP

STAGES

[1]

[NONE]

FAN CONTROL TSTAT

PG 10

4. Select the appropriate number of stages for your heating system (from 1 to 3) by touching the

number of STAGES (in brackets) to highlight, and using the +/- buttons to increase or decrease.

5. Touch the appropriate FAN CONTROL setting.

Select HVAC if your heating system controls the fan (appropriate for most gas, oil, propane and

similar furnaces).

Select TSTAT if you want the thermostat to control the fan (for most electric heating systems).

6. Go on to congure COOL or press HOME to return to the Home screen.

FASTSET for NORMAL A/C cooling systems:

1. Press MENU and then touch HVAC SET-UP.

2. Touch and highlight COOL in the upper left corner of the display.

3. Select the number of stages of compression for your cooling system (1 or 2) by touching the

number of STAGES and using +/- buttons to increase or decrease.

4. Touch to select the appropriate FAN CONTROL setting HVAC or TSTAT.

NOTE: Most cooling systems require that the thermostat TSTAT control the fan.

5. Press HOME to return to the Home screen.

SET-UP for HEAT PUMP systems:

1. Press MENU and then touch HVAC SET-UP.

2. Touch HEAT in the upper left corner of the display.

3. Touch HEAT PUMP.

4. Select the number of stages of compression for your heat pump system (1 or 2) by touching the

number of STAGES, and using the +/- buttons to increase or decrease (same for HEAT and COOL).

NOTE: Most heat pump systems have one stage of compression.

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