Cortex CT1001, CT1002 User Manual

CT1001/CT1002 Touchscreen

Programmable Thermostat

Room

Running As SCHED

SYSTEM

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

WED

PM

AUTO

HEAT

CT1001/CT1002 Touchscreen Programmable Thermostat

Contents

Application/Features................................................................................................................2

Specifications/Ordering Information........................................................................................ 4

Installation..............................................................................................................................14

Wiring.....................................................................................................................................18

Power the Thermostat............................................................................................................35

Installer Setup.........................................................................................................................48

Installer System Test...............................................................................................................59

Operation................................................................................................................................62

Programming ..........................................................................................................................68

Troubleshooting .…..................................................................................................................98

1t

CT1001/CT1002 Touchscreen Programmable Thermostat

PRODUCT DATA

APPLICATION

The CT1001/CT1002 Touchscreen Programmable Thermostat is an effortless, 7-Day
programmable thermostat that provides universal system compatibility, precise comfort
control and is easy-to-program.
The CT1001/CT1002 Thermostats provide temperature control for gas, oil, electric and heat
pumps for up to 3 heats, 2 cool systems including dual fuel operation plus dehumidification
control.

2t

CT1001/CT1002 Touchscreen Programmable Thermostat

FEATURES

·Large, clear display with backlight shows the current and set temperature and
thermostat in the dark.

·Menu-driven programming make setup effortless.

·Beautiful ergonomic design is smart and sophisticated to match your customer

lifestyle.

·Touchscreen interaction

·Real-time clock keeps time during power failures and automatically updates to

daylight savings.

·"Saving Changes" notification lets you know when the schedule changes have been
saved.

·Change/check reminders let you know when to service or replace filters or batteries

·Various Hold options allow you to override the program schedule, as desired.

·Armchair programming allows you to remove the thermostat from the wall for

programming.

3

CT1001/CT1002 Touchscreen Programmable Thermostat

SPECIFICATIONS

Thermostat Description:

Feature

Description

Powering methods

Common wire with battery backup

System types (up to3 heat/2 cool)

·Gas, oil or electric heat with air conditioning

·Warm air, hot water, high-efficiency furnaces, heat

pumps, steam and gravity

·Heat on

ly inclu

des power to open and power to
close zone valves and normally-open
zone valves

·Heat only with fan

·Cool only

·750 mV heating systems

Changeover

Manual or Auto changeover selectable

System setting

HEAT-OFF-COOL-AUTO (EMER for heat pumps)

Fan setting

AUTO-ON-CIRC

4

CT1001/CT1002 Touchscreen Programmable Thermostat

Electrical Ratings:

Temperature Setting Range:

Heating: 40°F to 90°F (4°C to 32°C).
Cooling: 50°F to 99°F (10°C to 37°C).

Operating Ambient Temperature:
32°F to 120°F (0°C to 49°C).

Shipping Temperature:
CT1001/CT1002 Thermostats: -30 °F to 150 °F

(-34.4°C to 65.6°C).

5

Terminal

Voltage (50/60 Hz)

Running Current

W Heating

20 - 30 VAC

1 AMP max.

W Heating (Power pile)

750 mVDC

100 mAMP

Y Cooling

20 - 30 VAC

1 AMP max.

G Fan

20 - 30 VAC

1 AMP max.

CT1001/CT1002 Touchscreen Programmable Thermostat

Operating Relative Humidity (Non-condensing):

CT1002 Thermostats: 5% to 90%.
IAS-1: 5% to 95%.
OAS-1: 5% to 95%.

Humidity Setting Range (CT1002 models only):
Cooling: 40% to 80% RH.

Humidity Display Range (CT1002 models only):
0% to 99%.

Cycle Rates (at 50% Load):
Heating: Selectable 1 - 12 cycles per hour.
Cooling: Selectable 1 - 6 cycles per hour.

Clock Accuracy: +/- 1 minute per month.

6

Batteries:
Two replaceable AA alkaline batteries will power the thermostat when 24VAC common is not
used. A non-replaceable lithium battery with ten-year life is inside the thermostat. Under
normal use the lithium battery will maintain the calendar and time settings. The Alkaline
batteries maintain the calendar and time after lithium battery is no longer functional.

CT1001/CT1002 Touchscreen Programmable Thermostat

Cool Indication:
CT1001/CT1002 Touchscreen Thermostats show "Cool On" on the screen when Cool is
activated.

Heat Indication:
CT1001/CT1002 Touchscreen Thermostats show "Heat On" on the screen when Heat is
activated.

7

Auxiliary Heat Indication:
CT1001/CT1002 Touchscreen Thermostats show "Aux Heat On" on the screen when
Auxiliary Heat is activated.

Emergency Heat Indication:
CT1001/CT1002 Touchscreen Thermostats show "Heat On" on the screen when
Emergency Heat is activated and the System mode is in the EMER position.

Calibration:
CT1001/CT1002 Touchscreen Thermostats are factory-calibrated and require no field
calibration.

CT1001/CT1002 Touchscreen Programmable Thermostat

ORDERING INFORMATION

If you have additional questions, need further information, or would like to comment on our
products or services, please write or phone:

8

CT1001/CT1002 Touchscreen Programmable Thermostat

Nomenclature:

Series

System Stages

Application

CT1001
CT1002

3H/2C

CT1001 - Standard
CT1002 - Humidity Sensor

Mounting Means:
CT1001/CT1002 Touchscreen Thermostat: Mounts directly on the wall in the living space
using mounting screws and anchors provided.
Outdoor Sensor: Mounts outside of living space with mounting clip and screws provided.
Remote Indoor Sensor: Mounts directly on the wall using mounting screws and anchors
provided.

9

Dimensions:

1. CT1001/CT1002 Touchscreen Thermostat: see Fig 1.

2. CT1001/CT1002 Touchscreen Thermostat Back Case: see Fig. 2

3. CT1001/CT1002 Outdoor Sensor Mounting Clip: see Fig 3.

4. CT1001/CT1002 Cover Plate: see Fig 4.

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 1. Touchscreen Thermostat dimensions in inches. (mm).

5.98 in.(152mm)

4.48in. (114mm)

1.235 in.(30.60mm)

CT1001/CT1002 Touchscreen Programmable Thermostat

11

Fig. 2. Touchscreen Thermostat Back Case dimensions in inches. (mm).

1.51 in.(38.5mm) 0.84 in .(21.5mm)

1.77 in.(45mm)

1.67 in.(42.5mm)

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 3. Outdoor Sensor Mounting Clip dimensions in inches. (mm).

12

R1.6 in.(4mm)

1.82 in.(46.3mm)

R0.04 in.(1mm)

R0.098 in.(2.5mm)

1.10 in.(28.1mm)

0.62 in.(16mm)

1.56 in .(39.7mm)

0.24 in.(6.2mm)

0.44 in .(11.2mm)

R0.098 in.(2.5mm)

0.08 in.(2mm)

1.49 in.(38mm)

0.17in .(4.2mm)

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 4. Cover Plate dimensions in inches. (mm).

13

3.29 in.(83.5mm)

0.85 in .(21.5mm)

3.29 in.(83.5mm)

5.35 in.(136mm)

4.13 in.(105mm)

CT1001/CT1002 Touchscreen Programmable Thermostat

INSTALLATION

When Installing this

Product...

1. Read these instructions carefully. Failure to follow the instructions can damage the
product or cause a hazardous condition.

2. Check the ratings given in the instructions to make sure the product is suitable for your
application.

3. Installer must be a trained, experienced service technician.

4. After completing installation, use these instructions to check out the product operation.

Selecting

Location

Install the thermostat about 5 ft. (1.5m) above the floor in an area with good air circulation at
average temperature. See Fig. 5.

Do not install the thermostat where it can be affected by:

----Drafts or dead spots behind doors and in corners.

----Hot or cold air from ducts.

----Radiant heat from sun or appliances. Concealed pipes and chimneys.

----Unheated (uncooled) areas such as an outside wall behind the thermostat.
14

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 5. Selecting thermostat location.

15

5FEET

1.5METERS

CT1001/CT1002 Touchscreen Programmable Thermostat

Installing Wallplate

CAUTION

Electrical Hazard.
Can cause electrical shock or equipment damage.
Disconnect power before wiring.

The thermostat can be mounted horizontally on the wall

1. Position and level the wallplate (for location only).

2. Use a pencil to mark the mounting holes.

3. Remove the wallplate from the wall and, if drywall, drill two holes in the wall, as marked.

For firmer material such as plaster, drill two holes. Gently tap anchors (provided) into the
drilled holes until flush with the wall.

4. Position the wallplate over the holes, pulling wires through the wiring opening. See Fig. 6

5. Insert the mounting screws into the holes and tighten.

16

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 6. Mounting wallplate.

17

WALL

WIRES THROUGH
WALL AND WIRE
SLOT

WALL ANCHORS

M0UNTING
HOLES(2)

M0UNTING

SCREWS(2)

CT1001/CT1002 Touchscreen Programmable Thermostat

WIRING (FIG. 9

-

21)

All wiring must comply with local electrical codes and ordinances.

1. Select set of terminal identifications (Table 1) that corresponds with system type
(conventional or heat pump in Fig. 7).

2. Loosen the screws for the appropriate system type selected; see Table 1. See Table 2 for
terminal designation descriptions. Insert wires in the terminal block under the loosened screw.
See Fig. 8.

3. Securely tighten each screw.

4. Push excess wire back into the hole.

5. Plug the hole with nonflammable insulation to prevent drafts from affecting the thermostat.

6. See Fig. 9 through 21 for typical wiring hookups.

Fig. 7. Selecting terminal identifications for system type.

18

CONVENTIONAL

HEAT PUMP

SCREW
TERMINALS

S1 S2 C R RC E L Y2 Y G

S1 S2 C R RC W W2 Y2 Y G

O/B AUX

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 1. Selecting Terminal Identifications for System Type.

System Type

Wallplate Terminal

Identifications

Wiring Diagram

Reference

Standard Heat/Cool

Conventional

9, 10

Heat Only

Conventional

11

Heat Only with Fan

Conventional

12

Heat Only Power to open and power to

close zone valves

Conventional

13

Normally Open Zone Valves Heat Only

Conventional

14

Cool Only

Conventional

15

Standard Multistage up to 2 Heat/2 Cool

Conventional

16, 17

Heat Pump with No Auxiliary Heat

Heat Pump

18, 19

Heat Pump with Auxiliary Heat

Heat Pump

20, 21

19

CT1001/CT1002 Touchscreen Programmable Thermostat

IMPORTANT: Use 18 gauge thermostat wires.

Fig. 8. Inserting wires in terminal block.

20

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 2. Terminal Designation Descriptions.

Terminal Designation

Description

RC (see Note 1)

Power for cooling--connect to secondary side of cooling system
transformer

R (see Note 1)

Power for heating--connect to secondary side of heating system
transformer

C (see Note 2)

Common wire from secondary side of cooling system transformer

W

Heat relay

Y

Compressor contactor

G

Fan relay

Y2

Second stage cooling

W2

Second stage heat relay

O/B (see Note 3)

Changeover valve for heat pump systems

AUX

Auxiliary heat relay for heat pump systems

E

Emergency heat relay for heat pump systems

L (see note 4)

Equipment monitor for heat pump systems

S1, S2

Optional outdoor or indoor remote sensor

21

NOTES:

1. When used in a single-transformer system, leave metal jumper wire in place between RC and
R. If used on a two-transformer system, remove metal jumper wire between RC and R.

2. Common wire is optional when thermostat is used with batteries.

3. If thermostat is configured for a heat pump system in the Installer Setup, configure
changeover valve for cool (O-factory setting) or heat (B).

4. L terminal is an input (system monitor) when the System mode is in the HEAT, OFF, COOL or
AUTO position. “L” terminal is a 24VAC output when System mode is Emergency Heat. When
using the “L” terminal connect the 24VAC Common. See LCD indications on page 90.

.

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 9. Typical hookup of conventional single-stage heat and cool system with single

transformer (1H/1C conventional).

22

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

COMPRESSOR
CONTACTOR

OPTIONAL
24VAC
COMMON
CONNECTION

R C

1

2

FAN RELAY

HEAT RELAY

CT1001/CT1002 Touchscreen Programmable Thermostat

1.POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2.OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE
SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 10. Typical hookup of conventional single-stage heat and cool system with two

transformers (1H/1C conventional).

23

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR

TEMPERATURE
SENSOR

2

R

C

1

FAN RELAY

HEAT RELAY

R

C

1

COMPRESSOR
CONTACTOR

OPTIONAL
24VAC
COMMON
CONNECTION

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 11. Typical hookup of heat-only system (1H conventional).

24

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

HEAT RELAY

OPTIONAL
24VAC
COMMON

CONNECTION

C

R

1

2

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 12. Typical hookup of heat only system with fan (1H conventional).

25

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

HEAT RELAY

OPTIONAL
24VAC
COMMON
CONNECTION

R

C

1

2

FAN RELAY

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 13. Typical hookup of heat only power to open and power to close zone valve

system.

26

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

R

C

1

2

W

B

R

TR

TR

MOTOR OR
VALVE

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 14. Typical hookup of heat only system with normally open zone valves.

27

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

NORMALLY OPEN

ZONE VALVE

OPTIONAL
24VAC
COMMON
CONNECTION

R

C

1

2

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 15. Typical hookup of cool only system (1C conventional).

28

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

3

COMPRESSOR
CONTACTOR

OPTIONAL
24VAC
COMMON
CONNECTION

R

C

1

2

FAN RELAY

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 16. Typical hookup of conventional multistage two-stage heating and two-stage

cooling in a single-transformer system (2H/2C, 2H/1C or 1H/2C conventional).

29

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR

TEMPERATURE
SENSOR

3

OPTIONAL
24VAC
COMMON
CONNECTION
MUST COME
FROM THE
COOLING
TRANSFORMER

FAN RELAY

HEAT RELAY 1

HEAT RELAY 2

COOL RELAY 2

COOL RELAY 1

R

C

1

2

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 17. Typical hookup of conventional multistage two-stage heating and two-stage

cooling in a two-transformer system (2H/2C, 2H/1C or1H/2C conventional).

30

CONVENTIONAL

S1 S2 C R RC W W2 Y2 Y G

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

2

OPTIONAL
24VAC
COMMON
CONNECTION
MUST COME
FROM THE
COOLING
TRANSFORMER

R

C

1

FAN RELAY

HEAT RELAY 1

HEAT RELAY 2

COOL RELAY 2

COOL RELAY 1

R

C

1

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

4. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

Fig. 18. Typical hookup of single-stage heat pump with no auxiliary/backup heat

(1H/1C heat pump).

31

HEAT PUMP

S1 S2 C R RC W W2 Y2 Y G

S1 S2 C R RC E L Y2 Y G

O/B AUX

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

4

2

R

C

1

CHANGEOVER
VALVE

COMPRESSOR
RELAY

FAN RELAY

OPTIONAL
24VAC
COMMON

CONNECTION

3

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. MUST CONNECT THE 24VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE

USED AS A 24VAC OUTPUT. SEE "HEAT PUMP LED" SECTION FOR MORE INFORMATION.

4. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

5. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE SEPARATE

FROM THE THERMOSTAT CABLE.

Fig. 19. Typical hookup of multistage heat pump with no auxiliary/backup heat

(2H/2C heat pump).

32

HEAT PUMP

S1 S2 C R RC W W2 Y2 Y G

S1 S2 C R RC E L Y2 Y G

O/B AUX

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

2

R

C

1

CHANGEOVER
VALVE

FAN RELAY

OPTIONAL
24VAC
COMMON

CONNECTION

5

COMPRESSOR 2

COMPRESSOR 1

4

3

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACKUP HEAT THAT IS NOT USING AN EXTERNAL FOSSIL FUEL

KIT.

4. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

5. MUST CONNECT THE 24VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE
USED AS A 24VAC OUTPUT. SEE HEAT PUMP SECTION ON PAGE 90.

6. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

Fig. 20. Typical hookup of single-stage heat pump with auxiliary/backup heat

(2H/1C heat pump).

33

3

4

HEAT PUMP

S1 S2 C R RC W W2 Y2 Y G

S1 S2 C R RC E L Y2 Y G

O/B AUX

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

2

R

C

1

CHANGEOVER
VALVE

FAN RELAY

OPTIONAL
24VAC
COMMON

CONNECTION

6

5

COMPRESSOR
RELAY

EMERGENCY
HEAT RELAY

HEAT 2 RELAY

(AUXILIARY HEAT)

EQUIPMENT

MONITOR

CT1001/CT1002 Touchscreen Programmable Thermostat

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND OVERLOAD PROTECTION AS REQUIRED.

2. FACTORY INSTALLED JUMPER.

3. OUTDOOR SENSOR REQUIRED IN SYSTEM WITH FOSSIL FUEL BACKUP HEAT THAT IS NOT USING AN EXTERNAL FOSSIL FUEL

KIT.

4. OPTIONAL OUTDOOR OR INDOOR REMOTE SENSOR. AVAILABLE ON SELECT MODELS. WIRES MUST HAVE A CABLE

SEPARATE FROM THE THERMOSTAT CABLE.

5. MUST CONNECT THE 24VAC COMMON WHEN USING L. THE TERMINAL IS SHOWN AS EQUIPMENT MONITOR, CAN ALSO BE
USED AS A 24VAC OUTPUT. SEE HEAT PUMP SECTION ON PAGE 90.

6. "O/B" TERMINAL SET TO CONTROL AS EITHER "O" OR "B" IN THE INSTALLER SETUP.

Fig. 21. Typical hookup of multistage heat pump with auxiliary/backup heat

(3H/2C heat pump).

34

3

4

HEAT PUMP

S1 S2 C R RC W W2 Y2 Y G

S1 S2 C R RC E L Y2 Y G

O/B AUX

OUTDOOR/INDOOR
TEMPERATURE
SENSOR

2

R

C

1

CHANGEOVER
VALVE

FAN RELAY

OPTIONAL
24VAC
COMMON
CONNECTION

6

5

COMPRESSOR 2

EMERGENCY
HEAT RELAY

HEAT 2 RELAY

(AUXILIARY HEAT)

EQUIPMENT

MONITOR

COMPRESSOR 1

CT1001/CT1002 Touchscreen Programmable Thermostat

POWER THE THERMOSTAT

Wiring

24VAC Common

· Single-Transformer

System:

Conn

ect the common side of the transformer to the C screw terminal of the thermostat

wallplate. Leave the metal jumper wire in place between RC and R.

·

Two Transformer System:

Connect power side of "Cooling" transformer to RC terminal. Remove factory installed

jumper. Connect common side of "COOLING" transformer to the compressor contactor,
relay, etc. Connect power side of "HEATING" transformer to the R terminal. Connect
the common side of the Heat relay to the C terminal.

35

You can choose from three methods to power the thermostat.

· Batteries only (AA alkaline).

· 24VAC common wire only.

· 24VAC common wire with battery backup (AA alkaline).

CT1001/CT1002 Touchscreen Programmable Thermostat

Installing Batteries

1. Install Two AA alkaline batteries on the
back of the thermostat as marked on the
thermostat. See Fig. 22.

Fig. 22. Installing batteries.

2. Locate and remove the tab. See Fig. 23.

Fig. 23. Remove tab

on thermostat back.

36

BATTERIES(2)

- + - +

REMOVE

TAB

CT1001/CT1002 Touchscreen Programmable Thermostat

Mount

Thermostat

to

Wallplate

1. Align the terminal screw blocks with the pins on the back of the thermostat. Push the

thermostat straight onto the wallplate until it snaps into place. See Fig 24.

Fig. 24. Mount thermostat to wallplate.

37

WALLPLATE

TERMINAL SCREW BLOCK

PINS ON BACK OF
THERMOSTAT

CT1001/CT1002 Touchscreen Programmable Thermostat

Locate and

Mount Outdoor

Temperature

Sensor (Optional)

Mount the sensor where (see Fig. 25):

·the settings cannot be tampered with.

·there is good air circulation.

·it can measure true outdoor ambient temperature.

·there is a flat surface.

·wire distance between sensor and thermostat should be 65.61 ft (20m).

Do not mount the sensor:

·in direct sunlight.

·where hot or cold air blows on the sensor. Discharge line from an outdoor compressor

unit, vent or fan causes inaccurate temperature readings.

·where snow, ice or debris can cover it.
Use the following steps to mount the sensor:

1. Remove the sensor from the mounting clip.

2. Mark the area on the location selected for mounting the sensor mounting clip.

3. Mount the clip.

38

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 25. Typical locations for ORS-1 Outdoor Sensor.

39

CT1001/CT1002 Touchscreen Programmable Thermostat

CAUTION

Electrical Interference (Noise) Hazard.
Can cause erratic system operation.

Keep wiring at least one foot away from large inductive loads such as motors, line
starters, lighting ballasts and large power distribution panels.
Use shielded cable to reduce interference when rerouting is not possible.

IMPORTANT

Erratic temperature readings from a sensor can occur as a result of any of the
wiring practices that are not to local and national electrical standards. Avoid
these practices to assure correct operation. Use shielded cable to reduce
interference if rerouting sensor wiring is not possible.

40

CT1001/CT1002 Touchscreen Programmable Thermostat

CAUTION

Electrical Shock Hazard.
Can cause electrical shock or equipment damage.

Disconnect power supply before connecting wiring.

Wiring must comply with applicable code s, ordinances and regulations:

1. Wire Outdoor Sensor to S1and S2 terminals on the thermostat. If leadwire provided is not

long enough, you need an extra cable to reach the hole at location.
a. Using color-coded, 18-gauge thermostat wire is recommended. For example of general
wiring of sensor, see Fig. 26.
b. Pigtail wiring can be used.

2. Mount Sensor in its mounting clip.

3. Plug wiring holes using non-hardening caulk or putty.

41

Be sure wires have a cable separate from the thermostat cable.
Do not route temperature sensor wiring with building power wiring, next to control contactors
or near light dimming circuits, electric motors or welding equipment.
Avoid poor wiring connections.
Avoid intermittent or missing building earth ground.

CT1001/CT1002 Touchscreen Programmable Thermostat

1. USE APPROPRIATE MOUNTING MEANS FOR THE TYPE OF STRUCTURE.

2. PLUG WIRING HOLE WITH NON-HARDENING CAULK OR PUTTY.

Fig. 26. Wire Outdoor Sensor to the thermostat.

42

1 2 WIRING HOLE

THROUGH

STRUCTURE

ORS-01

CT1001/CT1002 Touchscreen Programmable Thermostat

Locate and

Mount

Remote

Indoor

Temperature

Sensor (Optional)

1. Choose a location (see Fig. 27) for mounting the sensor on an inside wall about 5 ft (1.5m)
above the floor.

2. Be sure wire distance between sensor and thermostat is less than 19.6 ft（6m）.

3. Make sure there is good air circulation at average temperature at the chosen location.

Avoid the following locations because they can introduce errors in sensor measurements.
See Fig. 27.
Hot areas caused by:
(a) Concealed pipes or ducts.
(b) Drafts from fireplaces or other heat sources.
(c) Convection or radiant heat from the sun or electrical equipment.
Cold areas caused by:
(a) Concealed pipes or ducts.
(b) Drafts from windows and doors.

Dead air areas:
(a) Behind doors, furniture and curtains. (b) In corners and alcoves.

4. Mark the area on the wall selected for mounting the Sensor or junction box.

5. Run wire cable to a hole at the selected wall location. Pull approximately three inches of

wire through the opening. Color-coded, 18-gauge thermostat wire is recommended.

43

CT1001/CT1002 Touchscreen Programmable Thermostat

44

Fig. 27. Typical location for Indoor Sensor.

5FEET

1.5METERS

CT1001/CT1002 Touchscreen Programmable Thermostat

Wire

Indoor Sensor

CAUTION

Electrical Interference (Noise) Hazard. Can cause erratic system operation.

Keep wiring at least one foot away from large inductive loads such as motors, line
starters, lighting ballasts and large power distribution panels.

Be sure wires have a separate cable from the thermostat cable.
Do not route temperature sensor wiring with building power wiring, next to

control contactors or near light dimming circuits, electric motors or welding
equipment.
Avoid poor wiring connections.
Avoid intermittent or missing building earth ground.

45

IMPORTANT

Erratic temperature readings from a sensor can occur as a result of any of the
wiring practices described below. Avoid these practices to assure correct
operation.

CT1001/CT1002 Touchscreen Programmable Thermostat

CAUTION

Electrical Shock Hazard.
Can cause electrical shock or equipment damage.

Disconnect power supply before connecting wiring.

Wiring must comply with applicable codes, ordinances and regulations.

1. Wire Indoor Sensor to S1 and S2 terminals on the thermostat. For an example of general
wiring of IRS-1, see Fig. 28 to wire one sensor and 29 to wire multiple sensors.

2. Push excess wire back into the hole. Plug the hole using non-hardening caulk, putty or
insulation to prevent drafts from affecting performance.

3. Remove IRS-1 sensor cover.

4. Mount IRS-1 to the wall or junction box using the screws and anchors provided.

5. Level the IRS-1 for appearance only. Device functions correctly even when not level.

6. Install IRS-1 cover.
46

CT1001/CT1002 Touchscreen Programmable Thermostat

Fig. 28. Wiring a single Indoor Sensor.

47

Fig. 29. Wiring Multiple Sensors.

1．SENSORS MUST BE ARRANGED IN THIS CONFIGURATION TO
OPERATE CORRECTLY.

2．WIRES MUST HAVE A CABLE SEPARATE FROM THERMOSTAT
CABLE.

1. POWER SUPPLY. PROVIDE DISCONNECT MEANS AND
OVERLOAD PROTECTION AS REQUIRED.

2. IF MORE THAN ONE REMOTE SENSOR IS REQUIRED, REFER
TO FIGURE 29.

3. WIRES MUST HAVE A CABLE SEPARATE FROM THE
THERMOSTAT CABLE.

R

C

1

2

IRS-01

3

S1 S2 C R RC W W2 Y2 Y G

S1 S2 C R RC

IRS-01

1

2

S1 S2 C R RC

1

2

IRS-01

IRS-01IRS-01

IRS-01 IRS-01 IRS-01

IRS-01 IRS-01 IRS-01

IRS-01 IRS-01IRS-01

CT1001/CT1002 Touchscreen Programmable Thermostat

INSTALLER SETUP

Installer setup instructions intentionally

removed from online manual

48

CT1001/CT1002 Touchscreen Programmable Thermostat

49

Installer setup instructions intentionally

removed from online manual

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Date

(Year Upper)

Select first two digits of current calendar year

(20 for year 2001-2099).

It cannot be changed.

Date

(Year Lower)

Select last two digits of current calendar year (08 for
year 2008, etc).

2001 - 2099 available.

Date (Month)

Select number that represents current calendar
month.

Date (Day)

Select number that represents current calendar
date.

Schedule Options

0-nonprogrammable.
4-7-day programmable.

When it is changed, the
Schedule must be
reprogrammed.

System Type

Selection

1-1 heat/1 cool conventional (factory setting).
2-single-stage heat pump (no auxiliary heat).
3-heat only conventional (no fan) Also for 750mV.
4-heat only conventional (with fan).
5-heat only (power to open and power to close zone
valves or normally-open zone valves).
6-cool only conventional.
7-2 heat/1 cool heat pump (with auxiliary heat).
8-2 heat/2 cool multistage conventional.
9-2 heat/1 cool multistage conventional.
10-1 heat/2 cool multistage conventional.
11-2 heat/2cool heat pump (no auxiliary heat).
12-3 heat/2cool heat pump (with auxiliary heat).

Available options and
defaults vary by thermostat.
System selection
automatically modifies some
default settings and/or hides
other Installer Setup options.

50

Table 3. Installer Setup Menu.

NOTE: For easier installer setup, write the selected options in the "INITIAL SETTING RECORD" column.

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Fan Control in

Heating

0-gas or oil furnace equipment controls fan in
heating (factory setting).
1-electric furnace thermostat controls fan in heating.

Only shown if conventional
system is selected. If heat
pump is chosen, fan defaults
to electric.

Changeover Valve

O/B Terminal

Energized in Heating

or Cooling (Heat

Pumps Only)

0-changeover valve O/B terminal setting.
1-changeover valve O/B terminal is energized in
heating.

Only shown if heat pump
system is chosen.

Backup Heat Source

(Auxiliary Heat)

0-heat pump backup heat source is electric (factory
setting).
1-heat pump backup heat source is fossil fuel.

Only shown if 2 heat/1 cool
or 3 heat/2 cool heat pump
is chosen.

External Fuel Fossil

Fuel Kit

0-no external fossil fuel kit is controlling heat pump
backup heat. This thermostat controls the dual fuel.
Must install outdoor sensor and set Installer Setup
Number 0340 to number 2. 1-external fossil fuel kit is
controlling heat pump backup heat.

Only shown if fossil fuel is
chosen as backup heat
source.

Cycles per hour (cph)

for 1st Stage

Compressor

3-cph recommended for compressors (factory
setting).

1, 2, 4, 5, 6-other cycle rate settings.

Cycles per hour (cph)

for 2nd Stage

Compressor

3-cph recommended for compressors (factory
setting).

1, 2, 4, 5, 6other cycle rate settings.

Only shown if two stages of
cool are selected.

Table 3. Installer Setup Menu. (CONTINUED)

51

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 3. Installer Setup Menu. (CONTINUED)

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Cycles per hour (cph)

for 1st Stage

Conventional Heat

1- 1 cph used for steam and gravity.
3-3 cph used for hot water system and high

efficiency (90% or better) furnaces.
5-5 cph used for standard fossil fuel forced air (less

than 80% efficient) systems (factory setting)
9-9 cph used for electric furnaces.
2, 4, 6, 7, 8, 10, 11, 12other cycle rate settings.

Not shown if system
selection is heat pump.
Selection in this stage
changes default cph for 2nd
stage heat.

Cycles per hour (cph)

for 2nd Stage Heat

(Aux Heat for 2H/1C

Heat Pumps)

1-1 cph used for steam and gravity.
3-3 cph for hot water systems and high efficiency

(90% or better) furnaces.
5-5 cph for standard fossil fuel forced air (less than

90% efficient) systems (factory setting).
9-9 cph used for electric furnaces or electric auxiliary

heat for heat pump systems.
2, 4, 6, 7, 8, 10, 11, 12other cycle rate settings.

Only shown if two stages of
heat are selected.

Cycles per hour (cph)
for 3rd Stage Heat
Aux Heat for 3H/2C

(Heat Pumps)

1-1 cph used for steam and gravity.
3-3 cph for hot water systems and high efficiency

(90% or better) furnaces.
5-5 cph for standard fossil fuel forced air (less than

90% efficient) systems (factory setting).
9-9 cph used for electric furnaces or electric auxiliary

heat for heat pump systems.
2, 4, 6, 7, 8, 10, 11, 12-other cycle rate settings.

Only shown if 3H/2C heat
pump is selected.

52

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 3. Installer Setup Menu. (CONTINUED)

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Cycles per hour

(cph) for Emer

3-3 cph for hot water systems and high
efficiency (90% or better) furnaces.

5-5 cph for standard fossil fuel forced air (less
than 90% efficient or better) systems.

9-9 cph for electric strip heat for heat pumps.

Only shown if 2H/1C or
3H/2C heat pump is selected.

Continuous

Backlight

0-Backlight function disable.
1-Backlight function enable.

If set to ‖1‖ , the backlight will
illuminate for 10 seconds
after any touchscreen press.

Changeover

0-manual changeover (factory setting).
1-auto changeover.

Dead band

Heating and cooling set-points can be set no
closer than chosen value:

2-2°F (1.5°C)
3-3°F (2°C)
4-4°F (2.5°C)
5-5°F (3°C)
6-6°F (3.5°C)
7-7°F (4°C)
8-8°F (4.5°C)
9-9°F (5°C)

Shown only if automatic
changeover is selected.

Temperature

Indication

Scale

0-fahrenheit temperature display (factory
setting).

1-celsius temperature display.

When it is changed, the
schedule must be
reprogrammed.

53

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 3. Installer Setup Menu. (CONTINUED)

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Daylight Savings

1-daylight savings is on (factory setting).
0-daylight savings is off.

Set to 0 in areas that do
not follow daylight
savings.

Remote

Temperature

Sensor (Outdoor or

Indoor)

0-no remote temperature sensor.
1-outdoor temperature sensor for display only.
2-outdoor temperature sensor for control.

Outdoor sensor used for Heat Pump Lockout
settings. (See Heat Pump Temperature Lockout
section for more details.).

3-indoor temperature sensor.

Defaults and Options
depend on System Type
selection.

Indoor Temperature
Sensor uses an averaging
network and does not
include on-board sensor.

Heat Pump

Compressor

Lockout or (Balance

Point)

0-no compressor lockout.
15°F (-9.5°C)
20°F (-6.5°C)
25°F (-4°C)
30°F (-1°C)
35°F (1.5°C)
40°F (4.5°C)
45°F (7°C)

Default depends on other
selections. Shown if
control is selected. (See
section for more
information.)

54

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 3. Installer Setup Menu. (CONTINUED)

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Heat Pump

Auxiliary Lockout

0-no auxiliary heat lockout.
40°F (4.5°C)
45°F (7°C)
50°F (10°C)
55°F (13°C)
60°F (15.5°C)

Shown if electric is chosen for
backup heat source and outdoor
temperature sensor for control is
selected. (See Advanced
Features section for more
information.)

Indoor

Dehumidification

Control

0-No indoor dehumidification control.
1-Dehumidification control activated.

Available on select models. If
dehumidification control is
activated and auto- changeover
is selected in Installer Setup
Number 0300, the dead band
minimum is defaulted to 5°F
(3°C) in Number 0310.

Filter Change

Reminder

0-furnace filter reminder off.
1-10 run time days.
2-30 run time days.
3-60 run time days.
4-90 run time days.
5-120 run time days.
6-365 run time days.

Run time based on call for fan.

55

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Humidifier Pad

Replacement

Reminder

0-humidifier pad replacement reminder off.
1-90 calendar days.
2-180 calendar days.
3-365 calendar days.

UV Lamp

Replacement

Reminder

0-UV lamp replacement reminder off.
1-365 calendar days.

Adaptive Intelligent

Recovery

1-Adaptive Intelligent Recovery control is
activated (system starts early so set-point is
reached by start of program period).

0-Conventional Recovery (system starts
recovery at programmed time).

Number of Periods

2-two periods available (Wake and Sleep)
4-four periods available (Wake, Day, Evening
and Sleep).

Not shown if non- programmable is
selected. 2 or 4 applies to all days
of the week. When it is changed the
schedule must be reprogrammed.

Minimum

Compressor

Off Time

5-five-minute compressor off-time setting
(factory setting).

0, 2, 3, 4-other compressor off-time settings.

Heat Temperature

Range Stop

40-90-temperature range (1°F increments) of
heating set-point.

Shown in 1/2 °C.

Cool Temperature

Range Stop

50-99-temperature range (1°F increments) of
cooling set-point.

Shown in 1/2 °C.

Table 3. Installer Setup Menu. (CONTINUED)

56

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 3. Installer Setup Menu. (CONTINUED)

Installer Setup

Name

Settings

Notes

Initial

Setting
Record

Clock Format

12-12 hour clock (factory setting).
24-24 hour clock.

Extended Fan On

Time

Heat

0-no extended fan operation after call for heat
ends.

90- fan operation is extended 90 seconds
after call for heat ends.

Not shown if fan operation is set to
fossil fuel or in Cool Only Systems.

Extended Fan On

Time

Cool

0-no extended fan operation after call for cool
ends.

90-fan operation is extended 90 seconds
after call for cool ends.

Not shown in Heat Only
Systems.

Keypad Lockout

0-unlocked keypad.
1-partially locked keypad.
2-fully locked keypad.

Unlocked all functions are
available. Partially locked only.

Temperature up and down keys
and ability to enter and modify
Installer Setup mode are available.

Fully locked only ability to enter
and modify-Installer Setup mode
are available.

Temperature Control

in Heat

1-less aggressive temperature control (could
cause temperature undershoot).

2-Standard temperature control in heating
(factory setting).

3-more aggressive temperature control (could
cause temperature overshoot).

Applies to recovery ramp and use
of auxiliary heat during recovery.

Choose 1 if getting temperature
overshoot.

Choose 3 if getting temperature
undershoot.

57

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer Setup

Name

Settings

Notes

Initial
Setting
Record

Temperature

Control in

Cool

1-less aggressive temperature control
(could cause temperature undershoot).

2-Standard temperature control in cooling
(factory setting).
3-more aggressive temperature control
(could cause temperature overshoot).

Applies to recovery ramp.
Choose 1 if getting temperature
overshoot.
Choose 3 if getting temperature

undershoot.

Temperature

Display

Offset

-3°F (-1.5°C)

-2°F (-1°C)

-1°F (-.5°C)
0°F (0. °C) (no difference in displayed

temperature and actual room
temperature )

1°F (.5°C)
2°F (1°C
3°F (1.5°C)

Reset Thermostat

0-no thermostat reset.
1-resets all Installer Setup Options to

default values and resets schedule to
default setting.

Only calendar settings and time
are retained.

Table 3. Installer Setup Menu. (CONTINUED)

58

CT1001/CT1002 Touchscreen Programmable Thermostat

INSTALLER SYSTEM TEST

Use the Installer System Test to test the W1 W2 E AUX Y1 Y2 and L terminals.

CAUTION

Equipment Damage Hazard.
Minimum compressor off time is bypassed during
Installer System Test.
Avoid cycling compressor quickly.

59

How

to

Use

the

Installer System Test

The Installer Test is part of the Installer Setup Menu.

1. Enter the Installer System Test by entering the Installer Setup.

2. Note that the test appears at the end of the Installer Setup Numbers.

3. See Fig. 30 to review how the thermostat buttons are used during the Installer System

Test. See Table 4 for available Installer System Tests.

CT1001/CT1002 Touchscreen Programmable Thermostat

60

Fig. 30. Review thermostat buttons used during Installer System Test.

DONE

DOWN ARROW

TURNS THE
SYSTER OFF

DONE KEY

EXITS INSTALLER
SYSTEM TEST

UP ARROW

TURNS THE
SYSTER ON

SYSTEM STAUS
NUMBER

SYSTEM TEST
NUMBER

UP ARROW KEY

ADVANCES TO

NEXT SYSTEM

TEST NUMBER

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer System Tests

Table 4. Installer System Test.

System Test Number

Test Type

System Status Number and

Description

Test 1

Cooling System Test

1-Cool stage 1 and stage 2 turn on.

0-Cool is off.

Test 2

Fan System Test

1-Fan turns on.
0-Fan turns off.

Test 3

Heating System Test

1-Heat stage 1 and stage 2 (aux

heat) turn on.

0-Heat is off.

Test 4

Emergency Heat Test

1-Emergency heat and L turn on.
0-Emergency heat and L turns off.

Press the Next button to go to the beginning of the Installer Setup or press the Done button to exit the Installer
System Test.

61

CT1001/CT1002 Touchscreen Programmable Thermostat

OPERATION

Thermostat Keys

Thermostat Display

62

AM

TUE

SHOWS
CURRENT
DAY OF
THE WEEK

SYSTEM

SHOWS
CURRENT
SYSTEM
POSITION

RUNNING AS SCHED

SHOWS THE
THERMOSTAT IS
FOLLOWING THE
PROGRAMMED
SCHEDULE

TIME

DISPLAY CURRENT
TIME OF DAY. HOLD
TIME REMAINING OR
NUMBER OF VACATION
DAYS REMAINING

INSIDE
TEMPERATURE

SHOWS THE
CURRENT INSIDE
TEMPERATURE

SET TO
TEMPERATURE

SHOWS THE
CURRENT SET
TEMPERATURE

FAN

SHOWS FAN
SETTING

Room

Running As SCHED

Set To

SYSTEM

COOL

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

TUE

AM

FAN

SELECTS
ON/AUTO/CIRC

UP ARROW

RAISES

TEMPERATURE
SETTING

DOWN ARROW

LOWERS
TEMPERATURE
SETTING

MORE

SHOWS ADDITIONAL

ACCESSORY AND
MAINTENANCE
OPTIONS

HOLD

SETS A PERMANENT
HOLD AND ACTIVITIES
VACATION HOLD

SYSTEM

SELECTS EM.
HEAT/OFF/COOL
AUTO/EMER

SCREEN

LOCKS OUT THE
SCREEN TO ALLOW
FOR CLEANING

CLOCK

SETS THE TIME
FORWARD
OR BACK

SCHED

ENTERS
SCHEDULING
MODE

Room

Running As SCHED

Set To

SYSTEM

COOL

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

TUE

CT1001/CT1002 Touchscreen Programmable Thermostat

63

System and Fan

Settings

System

The SYSTEM key selections vary based on your heating and/or cooling system type.

HEAT Thermostat controls the heating system.
OFF Both heating and cooling systems are off.
COOL Thermostat controls the cooling system.
AUTO Thermostat automatically changes between heating and cooling operation,

depending on indoor temperature.

EMER Emergency heat cycles to maintain temperature. Compressor is locked out (used

only for 2H/1C or 3H/2C heat pump systems) and auxiliary heat turns on as second
stage if needed.

FAN The Fan key selections vary based on the heating and/or cooling system type.

ON Fan runs continuously. Use this setting for improved air circulation or for more

efficient central air cleaning.

AUTO Fan follows the fan program schedule.
CIRC Fan runs randomly approximately 35% of the time when there is no call for cooling

or heating. Use this setting for improved air circulation or for more efficient central
air cleaning when you do not want the fan running continuously.

CT1001/CT1002 Touchscreen Programmable Thermostat

User

Setup

64

User setup instructions intentionally

removed from online manual

CT1001/CT1002 Touchscreen Programmable Thermostat

65

User setup instructions intentionally

removed from online manual

CT1001/CT1002 Touchscreen Programmable Thermostat

Installer Setup

Name

Settings

Date
(Year Upper)

It cannot be changed.

Date
(Year Lower)

Select last two digits of current calendar year (08 for year 2008, etc).
Date (Month)

Select number of current calendar month (1-12).

Date (Day)

Select number of current calendar date (1-31).

Schedule Options

0-Non-programmable.
4-7-day programmable (factory setting)(when it is changed, the schedule need
to be reprogrammed).

Display temperature
in °F or °C

0-°F setting (factory setting).
1-°C setting.

Daylight savings time

1-Daylight Savings function is enabled.
0-Daylight Savings is disabled.

Furnace air filter

0-off (factory setting).
1-10 fan run time days (about one month).
2-30 fan run time days (about three months).
3-60 fan run time days (about six months).
4-90 fan run time days (about nine months).
5-120 fan run time days (about one year).
6-365 fan run time days (about three years).

Humidifier pad
reminder

0-off.
1-3 months.
2-6 months.
3-12 months.

Table 5. User Setup Settings.

66

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 5. User Setup Settings. (CONTINUED)

Installer Setup

Name

Settings

UV lamp reminder

0-off (factory setting).
1-1 year.

Number of schedule
periods available

2-two (WAKE and SLEEP).
4-four (WAKE, DAY, EVENING, SLEEP) factory setting.

Clock format

12-12-hour clock (factory setting).

24-24-hour clock.

Screen lockout

0-all keys available; screen is unlocked (factory setting).
1-screen is partially locked. All key functions locked except Temperature Up
and Down keys and Cancel key.
2-screen is fully locked

66

CT1001/CT1002 Touchscreen Programmable Thermostat

PROGRAMMING

Preprogrammed

Energy Star Settings

Table 6 shows default program settings. Visit the Energy Star web site at
www.energystar.gov for additional education and resources on programmable thermostats.

Table 6. Energy Star Default Program Settings.

68

Schedule Period

Time

Set-points

Fan Setting

Heat

Cool

WAKE

6:00AM

68°F (20°C)

78°F (26°C)

AUTO

DAY

8:00AM

60°F (16°C)

85°F (29°C)

AUTO

EVENING

4:00PM

68°F (20°C)

78°F (26°C)

AUTO

SLEEP

10:00PM

60°F (16°C)

82°F (28°C)

AUTO

Program

Heating and

Cooling

Schedule

Your thermostat can control up to four different schedule periods per day:

WAKE-Period when you awaken and want your home at a comfortable temperature.
DAY-Period when you are away from home and want an energy-saving temperature.
EVENING-Period when you return home and want your home back to a comfortable

temperature.

SLEEP-Period when you are asleep and want an energy-saving temperature.

NOTE: Schedule times are in 15 minute intervals.

CT1001/CT1002 Touchscreen Programmable Thermostat

Edit

Schedule

1. Press SCHED key.

2. Press PROG DAY key to review the
programs to see that the settings are
compatible with your lifestyle.

69

3. Press the EDIT then you press PROG DAY
key to select the program days.

Room

Running As SCHED

Set To

SYSTEM

COOL

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

PM

WED

MON TUE WED THU FRI

AM

HEAT

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

AUTO

FAN

PROG

DAY

COOL

EDIT

AUTO

PROG

CT1001/CT1002 Touchscreen Programmable Thermostat

70

4. Press WAKE key. Once pressed, Wake
flashes to show it is selected. Same as the
other schedule.

5. Press Up and Down keys to modify time
and heat and cool temperatures from this
screen.

6. The Fan setting can be programmed for
ON, AUTO, or CIRC for each period.
Please see Fan Schedule for more
information about the Programmable FAN.

MON TUE WED THU FRI

AM

HEAT

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

AUTO

FAN

CANCEL
PERIOD

COOL

PROG

DAY

MON TUE WED THU FRI

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

PROG

DAY

CT1001/CT1002 Touchscreen Programmable Thermostat

7. To exit schedule without saving changes,
press CANCEL key any time.

Cancel a Schedule

Period

1. Press SCHED key.

2. Press EDIT key.

3. Select the Day(s) of the week desired.

4. Press schedule period you want to cancel

(WAKE, DAY, EVENING or SLEEP). Once
selected, the period flashes.

5. Press CANCEL PERIOD key.

NOTE: To set a Program Schedule for the

remaining days of the week, repeat
steps 1-6. Example: If MON – FRI
was selected first, go back and
repeat steps 1-6 for SAT and SUN.

6. The time, temperature(s) and fan setting

disappear. The bar above the selected period
is removed, indicating the scheduled period
was cancelled.
NOTE: To reinstate a schedule period, press

arrow keys to set desired time and
temperatures.

71

MON TUE WED THU FRI

AM

HEAT

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

AUTO

FAN

CANCEL
PERIOD

COOL

PROG

DAY

CT1001/CT1002 Touchscreen Programmable Thermostat

7. Press DONE key.

ON Fan runs continuously (programmable for

all schedule periods).

CIRC Fan runs randomly for approximately

35% of schedule period when there is no call
for cooling or heating (programmable for all
schedule periods).

Fan Schedule

Press FAN key while in the Scheduling Screen
to program the System Fan. Choices available
from the Scheduling Screen:

AUTO (default position)Fan runs with
equipment. Programmable for all schedule
periods (WAKE, DAY, EVENING and SLEEP).

72

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

AUTO

FAN

CANCEL
PERIOD

COOL

PROG

DAY

MON TUE WED THU FRI

HEAT

MON TUE WED THU FRI

AM

HEAT

CANCEL

SLEEP

WAKE DAY

EVENING

DONE

AUTO

FAN

CANCEL
PERIOD

COOL

EDIT

PROG

DAY

CT1001/CT1002 Touchscreen Programmable Thermostat

Manual Override of Fan Schedule

Use FAN key to change fan work states
by manual.

AUTO-fan is automatically following the Fan

schedule(choices are Auto, On or Circulate).

ON-

Fan runs randomly for approximately
35% of schedule period when there is no
call for cooling or heating.
CIRC- Fan circulates randomly for
approximately 35% of time.
When the program reaches to next
schedule, the fan will run as the setting in
the period.

Operate CT1001/CT1002
Touchscreen

Set

Time

1. Press CLOCK.

2. Use arrows to set current

73

CANCEL

DONE

AM

CT1001/CT1002 Touchscreen Programmable Thermostat

74

IMPORTANT

The current day of the week should
already be set correctly. If not, see
Installer Setup to set the day.

Set

Temperature Overrides

The thermostat has three temperature
override options: Override Until,

Permanent Override and Vacation Hold.

Override Until (TEMPORARY Override)

Holds temperature temporarily until the next
scheduled period time or until time is
selected.

1. Press the Up or Down arrow below to the
temperature you want to adjust. Override
Until and set time appears on the screen.

2. Press Up or Down arrow next to the Time
to change the time to hold the adjusted
temperature setting.

3. If you want to exit Override Until, please
press the CANCEL key. Override Until will be
also exit until reach the set time.

Room

Set To

SYSTEM

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

TUE

HEAT

CANCEL

Override Until

PM

CT1001/CT1002 Touchscreen Programmable Thermostat

75

Vacation Hold
Change temperature setting for a designated
number of days.
1．Press HOLD key twice. Screen shows
Override Until and 1 DAYS.
2．Press the Up and Down arrow keys to set
the desired temperature while away on
vacation. Notice that —Override Until days is
shown on the screen. (This is the time the
Vacation Hold override expires after the
number of day’s ends.)
3．Press Up and Down arrow keys to change
the number of Days you desire thermostat to
override the schedule.

Permanent Override

Keep user set-point permanently.
1．Press HOLD key once. Screen shows
Permanent Override.

2. Press Up or Down arrow you want to
adjust.

3. If you want to exit Permanent Override,
please press the CANCEL key, or press the
HOLD key then press the CANCEL key.

Room

Set To

SYSTEM

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

TUE

HEAT

CANCEL

Permanent Override

PM

CT1001/CT1002 Touchscreen Programmable Thermostat

Clean Thermostat Screen

The thermostat has a touch screen interaction.
Follow these steps to clean the screen without
making thermostat parameter changes:

1. Press the SCREEN key. Thermostat locks
out all touch keys for 30 seconds to allow for
cleaning.

76

4. To cancel the Vacation Hold override
early, press the CANCEL key.

NOTE: When the number of days of

Vacation Hold expires, the screen
shows Running As SCHED to
indicate that Vacation Hold has
ended.

Room

Set To

SYSTEM

SCHED

CLOCK

SCREEN

AUTO

FAN

TUE

HEAT

Override Until

DAYS

CANCEL

CLEAN SCREEN

CT1001/CT1002 Touchscreen Programmable Thermostat

2. Use damp cloth slightly moistened with
water or household glass cleaner to clean
the screen.

3. Repeat the above steps, as necessary.

IMPORTANT

Do not spray any type of liquid directly
on the thermostat itself. If using
household glass cleaner, spray
cleaner on cloth. Then use a cloth to
clean the thermostat screen.

4. Press the DONE key to return to the
Home Screen and normal operation.

Replace Batteries

1. When the Battery indicator is flashing,
replace the batteries promptly with two
fresh AA alkaline batteries.

2. Remove thermostat from the wallplate
by pulling straight out.

3. Remove the old batteries and insert two
fresh AA alkaline batteries, as marked on
the thermostat.

77

WALL

CT1001/CT1002 Touchscreen Programmable Thermostat

4. Align the screw blocks with the pins on the
back of the thermostat.

5. Push the thermostat straight onto the
wallplate until it snaps into place.

78

BATTERIES(2)

- + - +

PINS ON BACK OF
THERMOSTAT

WALLPLATE

TERMINAL SCREW BLOCK

CT1001/CT1002 Touchscreen Programmable Thermostat

Battery Tips

1. Replace the batteries as soon as ―Batt‖
flashes in the display. The Battery indicator
flashes in the display one month before the
batteries run down completely.

2. Always use fresh AA alkaline batteries.
Non-alkaline batteries do not last as long
and can leak, causing thermostat damage.

3. Although the thermostat has a Low
Battery indicator, replace the batteries once
a year to prevent the thermostat and
heating/cooling system from shutting down
due to lack of battery power.

Screen Locks

Partially Locked Screen

When partially locked, the screen indicates
Screen Locked for 5 to 7 seconds whenever the
user attempts to press a key that is locked.
Pressing a locked key, while Screen Locked is
shown, flashes “Screen Locked” on the
screen.
In this mode, all keys are locked except the

Temperature Up and Down arrow keys:
User can change temperature up or down
but cannot change schedule settings.
Temporary temperature change lasts until
next scheduled period and that time shows
on screen.
To cancel temperature override and begin
following schedule, press CANCEL key.
To unlock screen, see Installer Setup section.

Fully Locked Screen

In this mode, all keys are locked and not
functional. To unlock screen, see Installer
Setup section. The screen continuously
displays Screen Locked.

79

SCREEN
LOCKED

PM

TUE

Room

Running As SCHED

Set To

SYSTEM

HEAT

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

CT1001/CT1002 Touchscreen Programmable Thermostat

80

Outdoor

Temperature

If an outdoor temperature sensor is installed,
the thermostat displays the outside
temperature in the lower right corner of the
Home Screen.

If thermostat is set to Auto Changeover System
mode, press the MORE key until the outside
temperature is shown on the screen. You can
also press MORE key again to check and edit
Filter Reminder if the Filter Change Reminder
function is chosen. (Press MORE key again to
check the humidity for CT1002 only)

TUE

AM

Room

Running As SCHED

Set To

SYSTEM

HEAT

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

Outside

CANCEL

DONE

Outside

MORE

CT1001/CT1002 Touchscreen Programmable Thermostat

81

Remote

Indoor

Temperature

If a remote indoor temperature sensor is
installed, the thermostat displays the inside
temperature on the screen from the remote
sensor(s).The thermostat internal
temperature sensor is not used.

ONE REMOTE INDOOR SENSOR
INSTALLED (OPTIONAL)

If one remote indoor temperature sensor is
used, the screen showing the Inside
temperature reading shows the temperature
at the indoor remote sensor location. The
thermostat internal temperature sensor is
not used.

MULTIPLE REMOTE INDOOR SENSORS

INSTALLED (OPTIONAL)

If more than one remote indoor sensor is

used, the screen showing inside temperature

reading shows the average of all the remote

indoor sensors. The thermostat internal

temperature sensor is not used.

Room

Set To

SYSTEM

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

TUE

HEAT

Heat On

AM

Running As SCHED

CT1001/CT1002 Touchscreen Programmable Thermostat

82

Indoor Air

Quality Reminders

Filter Change Reminder

The filter change reminder must be turned
on from the Installer Setup. Once expired,
the screen flashes RENEW FILTER. Press
the RESET key to reset the change
reminder.

NOTE: The days are counted as fan run
time, so anytime the fan is running, the
reminder is counting that time against the
number of days selected.

The remaining run time days can be viewed
by pressing the MORE key; the remaining
days can be edited by using the MORE key
or from the Installer Setup. To view or reset
the reminder by following steps before it
expires:

1. Press the MORE key until the filter
reminder appears on the screen. This is
the number of fan run-time days remaining
on the filter reminder.

Room

Set To

SYSTEM

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

TUE

PM

HEAT

RESET

Override Until

RENEW FILTER

Room

Set To

SYSTEM

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

TUE

PM

HEAT

CT1001/CT1002 Touchscreen Programmable Thermostat

83

2. Press the EDIT key.

4. Press the DONE key to go back to the
viewing screen.

3. Use the Up and Down keys to change
the number of run-time days.

CANCEL

DONE

DAYS

FILTER

RESET

MORE

EDIT

CANCEL

DONE

DAYS

FILTER

CT1001/CT1002 Touchscreen Programmable Thermostat

84

5. Press the RESET key to activate the new
number of days selected in the previous
screen.

6. Press the DONE key to return to the Home
Screen.

CANCEL

DONE

DAYS

FILTER

RESET

MORE

EDIT

CT1001/CT1002 Touchscreen Programmable Thermostat

85

Humidifier Pad Reminder (CT1002 Only)

The Humidifier Pad change reminder must be

turned on from the Installer Setup. Once

expired, the screen flashes, Change

Humidifier Pad and a RESET key appear.

Press the RESET key to reset the change

reminder.

The remaining calendar days can be viewed

by pressing the MORE key. The remaining

days can be edited using the MORE key or

from the Installer Setup. To view or reset the

reminder before it expires; follow these steps

using the MORE key:

1. Press the MORE key until the Humidifier

Pad change reminder appears on the screen.

This is the number of calendar days remaining

on the Humidifier Pad reminder.

2. Press the EDIT key.

3. Use the Up and Down keys to change the

number of calendar days.

4. Press the DONE key to go back to the

viewing screen.

5. Press the RESET key to activate the new
number of days selected in the previous
screen.

6. Press the DONE key to return to the Home
Screen.

UV Lamp Reminder

The UV Lamp change reminder must be
turned on from the Installer Setup. Once
expired, the screen flashes, Change UV
Lamp and a RESET key appear. Press the
RESET key to reset the change reminder.

1. Press the MORE key until the UV Lamp
change reminder appears on the screen.
This is the number of calendar days
remaining on the UV Lamp reminder.

2. Press the EDIT key.

3. Use the Up and Down keys to change the
number of calendar days.

4. Press the DONE key to go back to the
viewing screen.

5. Press the RESET key to activate the new
number of days selected in the previous
screen.

6. Press the DONE key to return to the Home
Screen.

CT1001/CT1002 Touchscreen Programmable Thermostat

86

Temperature Recovery

The thermostat feature, Adaptive Intelligent
Recovery,

eliminates all guesswork when
setting the thermostat schedule.
Simply set the program schedule to the time
that the comfort temperature is desired. The
thermostat then turns on the heating or
cooling at just the right time to have the home
reach the scheduled temperature at the
scheduled time.
For example get up at 6:00 AM and want the
temperature to be 70°F. Set the Wake period
for 6:00 AM and 70°F. The thermostat then
turns on the heat before 6:00 AM to raise the
temperature to 70°F by 6:00 AM.
The thermostat alerts that the heating or
cooling system to turn on before a scheduled
time by showing Recovery on the screen.

Room

Set To

SYSTEM

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

TUE

Recovery

PM

HEAT

CT1001/CT1002 Touchscreen Programmable Thermostat

When the minimum-off timer expires, Cool
On or Heat Ona appears solidly in the
display and the compressor and fan turn on.

a

Heat Pumps only

.

87

Minimum Off-Timer

The Thermostat has built-in compressor
protection (minimum- off timer) that prevents
the compressor from restarting too early after

a shutdown.
The minimum-off timer is activated after the
compressor turns off.
If there is a call during the minimum-off timer,
the thermostat shows Wait in the display.

Room

Running As SCHED

Set To

SYSTEM

COOL

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

PM

WED

Wait

CT1001/CT1002 Touchscreen Programmable Thermostat

88

Inside Humidity Level (CT1002 Only)

Select models can sense the humidity level
in the home. The humidity level in the home
is shown in the lower right corner of the
Home Screen.

If thermostat is set to Auto Changeover
System mode, press the MORE key until the
humidity level is shown on the screen.

.

THU

Room

Running As SCHED

Set To

SYSTEM

COOL

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

Humidity

PM

Humidity

CANCEL

DONE

CT1001/CT1002 Touchscreen Programmable Thermostat

89

Control Dehumidification Setting
(CT1002 Only)

Select models read the inside humidity level
and allow for a dehumidification setting:

1. Press the MORE key until the inside humidity
percent and dehumidification set-point are
shown.

2. Use Up and Down arrow keys, located to
the right of the dehumidifier set-point, to
set desired humidity level dehumidification
in the summer.

3. Press DONE key.

Dehumidification

Droop Control

(CT1002 Only)

The dehumidification control attempts to
control to the user's humidity set-point by
turning on the air conditioner. In extremely
high humidity conditions, the thermostat
keeps the air conditioner running
(energizing Y and G) for up to 3°F below
the temperature set-point. It does this
while trying to achieve the desired
humidity set-point and balancing that with
the temperature set-point. The thermostat
controls up to 3° F below the temperature
setting until either the humidity is satisfied
or conditions change.

Humidity

CANCEL

DONE

DEHUMIDIFICATION

CT1001/CT1002 Touchscreen Programmable Thermostat

Special Heat Pump Operat

ion

Heat Pump Indication (Requires
24VAC Common

Connections)

―E5‖ indication is located in the screen of the
thermostat. It is only visible when lighted.
When the L terminal is wired to an
equipment monitor, this is operational in the
HEAT, OFF, COOL or AUTO positions.
When the ―E5‖ is illuminated call for service.
See Fig. 31.

Fig. 31. L terminal switch to R (power)

side of system transformer.

Heat Pump Emergency Heat

LCD
Indication (Requires 24VAC
Common

Connection)

The thermostat indicates ―E5‖ indicator when
the thermostat is in the Emergency Heat mode.
The ―E5‖ is located in the LCD screen of the
thermostat. It is visible only when on. When
the thermostat is in the EMER system mode,
the L terminal is continuously energized and the
―E5‖ is displayed.

Heat Pump Temperature Lockouts

Dual Fuel Heat Pump and Outdoor
Temperature Sensor

In this operation, there is no external fossil fuel
kit (dual fuel kit) installed; the thermostat
controls this function.

90

TUE

AM

Set To

SYSTEM

HEAT

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

CT1001/CT1002 Touchscreen Programmable Thermostat

BALANCE
POINT

OUTDOOR TEMPERATURE

COMPRESSOR ONLY

FOSSIL FUEL ONLY

Fig. 32. Dual Fuel Heat Pump Operation

in Heat mode with Balance Point Set.

91

1. Choose correct heat pump application
in Installer Setup Number 0170.

2. Choose Fossil Fuel Option as the
backup heat source in Installer Setup
Number 0200.

3. Choose No External Fossil Fuel Kit
Option to control the back up heat in
Installer Setup Number 0210.

4. Choose Outdoor Temperature Sensor

for Heat Pump Temperature Lockouts
Option in Installer Setup Number 0340.

5. Choose appropriate Balance Point
Temperature in Installer Setup Number

0350.

OPERATION IN HEAT MODE ABOVE BALANCE
POINT (OUTDOOR TEMPERATURE)

When the outdoor temperature is above
the selected Balance Point Temperature
(ISU 0350), only the compressor operates
and the fan (G terminal) energizes when
the thermostat calls for heat. See Fig. 32.

OPERATION IN HEAT MODE BELOW
BALANCE POINT (OUTDOOR TEMPERATURE)

When the outdoor temperature is below
the selected Balance Point Temperature
(ISU 0350), only the Fossil Fuel (auxiliary
heat) operates and the fan (G terminal)
does not energize when the thermostat
calls for heat.

CT1001/CT1002 Touchscreen Programmable Thermostat

92

OPERATION IN EMERGENCY HEAT MODE

The balance point (outside) temperature is
not used in the Emergency heat mode.
When the thermostat is moved to the
Emergency Heat position, the compressor
is locked out. The first stage of heat is
whatever is connected to the E terminal.
The second stage of heat is what is
connected to the Aux. terminal.

Heat Pump with Electric Auxiliary
(Backup) Heat and Outdoor
Temperature Sensor

1. Choose correct heat pump application in
Installer Setup Number 0170.

2. Choose Electric as Auxiliary (Backup)
Heat Source in Installer Setup Number

0200.

3. Choose Outdoor Temperature Sensor
for Control Option in Installer Setup
Number 0340.

4. Choose Compressor Lockout
Temperature in Installer Setup Number

0350.

5. Choose Auxiliary Lockout
Temperature in Installer Setup Number

0360.
NOTE: There is a 5°F dead band between
the Compressor and Auxiliary Heat Lockout.

CT1001/CT1002 Touchscreen Programmable Thermostat

Operation in Heat Mode

When the outdoor temperature is below the
Compressor Lockout Temperature, only the

Auxiliary Heat operates.
When the outdoor temperature is above the
Auxiliary Lockout Temperature, only the
Compressor operates. See Fig. 33.

AUXILIARY LOCKOUT

TEMPERATURE

COMPRESSOR

LOCKOUT

TEMPERATURE

OUTDOOR TEMPERATURE

BOTH

COMPRESSOR AND

AUXILIARY HEAT

AUXILIARY ONLY

COMPRESSOR

Fig. 33. Heat Pump Operation with Lockout

Temperatures Set.

When the outdoor temperature is between the

two temperatures, both the Compressor and

Auxiliary Heat operate.

Operation in Emergency Heat Mode

Once the thermostat is placed into the
Emergency Heat mode, the compressor
and auxiliary lockout features are turned
off. In the Emergency heat mode, the
compressor is locked out. The first stage of
heat is whatever is connected to the E
terminal. The second stage of heat is
connected to the Aux. terminal. Usually the
emergency and auxiliary heat sources are
electric strip heat in these cases.

Operating Sequence

The thermostat energizes specific
terminal(s), depending on the demand for
heating, cooling or fan. The thermostat
screen shows the time, inside temperature,
system and fan selections. Additional
indicators are shown when the heating,
cooling or fan is energized. See Tables 7 - 9
for specification information.

93

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 7. Sequence of Operation for Conventional Systems.

Table 8. Sequence of Operation for Power Open and Power Closed Valves or Normally

Open Valves.

94

System Setting

Fan Setting

Call for Action

Energize Terminals

Screen Message

OFF

AUTO

None

None

None

COOL

AUTO

None

None

None

COOL or AUTO

AUTO

Stage 1 Cooling

Y, G

Cool On

COOL or AUTO

AUTO

Stage 1 and Stage 2

Cooling

Y, Y2b, G

Cool On

HEAT

AUTO

None

None

None

HEAT or AUTO

AUTO

Stage 1 Heating

W, Ga

Heat On

HEAT or AUTO

AUTO

Stage 1 and Stage 2

Heating

W, W2c, Ga

Heat On

a

G energizes only if Installer Setup number 0180 is set to Electric.

b

If Installer Setup System type is set to two stages of cooling.

c

If Installer Setup System type is set to two stages of heating.

System Setting

Fan Setting

Call for Action

Energize Terminals

Screen Message

OFF

AUTO

None

None

None

HEAT

N/A

None

Y

None

HEAT

N/A

Heat

W

Heat On

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 9. Sequence of Operation for Heat Pump Systems.

95

System Setting

Fan Setting

Call for Action

Energize Terminals

Screen Message

OFF

AUTO

None

O/ Ba

None

COOL

AUTO

None

O/ Ba

None

COOL or AUTO

AUTO

Stage 1 Cooling

Y, G, O/Ba

Cool On

COOL or AUTO

AUTO

Stage 1 and Stage 2

Cooling

Y, Y2d, G, O/Ba

Cool On

HEAT

AUTO

None

O/Ba

None

HEAT or AUTO

AUTO

Stage 1 Heating

Y, G, O/Ba

Heat On

HEAT or AUTO

AUTO

Stage 1 and Stage 2

Heating

Y, AUXc, G, O/Ba

Aux Heat On

HEAT or AUTO

AUTO

Stage 1, 2 and 3

Heating

Y, Y2d, AUXe, G,

O/Ba

Aux Heat On

Em. HEAT

AUTO

None

L, O/Ba

None

Em. HEAT

AUTO

Stage 1 Heating

E, G, L, O/Ba

Heat On

Em. HEAT

AUTO

Stage 1 and Stage 2

Heating

E, AUX, G, L, O/Ba

Aux Heat On

a

Configure O/B in Installer Setup. Based on last piece of equipment called (cooling = O or

heating = B).

c

If Installer Setup System Type is set to 2Heat/1Cool Heat Pump with Auxiliary Heat.

d

If Installer Setup System Type is set to 3Heat/2Cool Heat Pump with Auxiliary Heat.

e

This terminal does not energize if Installer Setup System type is set to 2 Heat/2 Cool Heat

Pump with no Auxiliary Heat.

CT1001/CT1002 Touchscreen Programmable Thermostat

Outdoor

Temperature

Sensor

Operation

When installed with Thermostat Installer Setup

Number 0340 set to 1 or 2, the outside

temperature can be displayed on the

thermostat. See Fig. 34.

Fig. 34. Outside temperature reading on

CT1001/CT1002 Thermostat.

The Outdoor Sensor converts outdoor

ambient temperature to a resistance that

the thermostat can interpret.

The sensor has a negative temperature

coefficient (NTC), which means that

resistance decreases as the temperature

increases.

Checkout

With an accurate thermometer (±1°F

[0.5°C]) measure the temperature at the

sensor location, allowing time for the

thermometer to stabilize before reading.

Calibration

The Outdoor Sensor is calibrated at the

factory and cannot be recalibrated in the

field.

96

TUE

AM

Room

Running As SCHED

Set To

SYSTEM

HEAT

MORE

SCHED

HOLD CLOCK

SCREEN

AUTO

FAN

Outside

CT1001/CT1002 Touchscreen Programmable Thermostat

Remote

Indoor

Temperature

Sensor

Operation

When installed with Thermostat Installer

Setup Number 0340 set to 3, the remote

inside temperature is displayed on the

Thermostat Home Screen as Inside

Temperature. The thermostat internal

temperature sensor is not used. See Fig.

35.

Fig. 35. Inside temperature reading on

CT1001/CT1002 Thermostat.

The Wall Mount Temperature Sensor converts
room temperature to a resistance that the
thermostat can interpret.

The sensor has a negative temperature

coefficient (NTC), which means that resistance

decreases as the temperature increases.

The sensor can be used to provide one remote

sensor input (see Fig. 28) or as a temperature

averaging network with multiple Sensors

connected, as shown in Fig. 29.

Checkout

For best results, allow Wall Mount Temperature
Sensor to absorb the air moving through the
room for a minimum of twenty minutes before
taking a resistance measurement.

With an accurate thermometer (±1°F [0.5°C])

measure the temperature at the sensor location,

allowing time for the thermometer to stabilize

before reading.

Calibration

The Wall Mount Temperature Sensor is
calibrated at the factory and cannot be
recalibrated in the field.

97

TUE

AM

Room

Running As SCHED

Set To

SYSTEM

HEAT

MORE

SCHED HOLD CLOCK

SCREEN

AUTO

FAN

Heat On

CT1001/CT1002 Touchscreen Programmable Thermostat

TROUBLESHOOTING (TABLE 10)

Table 10. Troubleshooting.

Symptom

Possible Cause

Action

Display does not come on.

Thermostat is not being powered.

Check for 24VAC between C and RC.
Check that AA batteries are installed
correctly and are good.

Temperature settings do not change.
The upper or lower temperature limits

were reached.

Check temperature set-points.
Check Installer Setup Numbers 0600 and
0610; modify as needed.

The keypad is fully locked.

Check Installer Setup Number 0670 to
change keypad locked options.

Heating or cooling does not come on.

Thermostat minimum off-time is
activated.

Wait up to five minutes for the system to
respond.

System selection is not set to Heat or
Cool.

Set system Selection to correct position.

System type Selection is incorrect.

Check Installer Setup Number 0170 and
make sure correct System type is
chosen.

Thermostat is calling for Heat (Heat on)
or Cool (Cool on) but no heating or
cooling is running.

Heating or cooling equipment is not
operating.

Check wiring.
Check Installer Setup Number 0170 and
make sure correct system type is
chosen.
Verify operation of equipment in System
Test mode.

98

CT1001/CT1002 Touchscreen Programmable Thermostat

Table 10. Troubleshooting. (CONTINUED)

Symptom

Possible Cause

Action

Heat does not turn on (Heat On is solid in
the display).

Heating equipment failure.

Check for 24VAC at the equipment on
the secondary side of the transformer
between power and common. If voltage
is not present, check the heating
equipment to find the cause of the
problem.
Check for 24VAC between the heat
terminal (W) and transformer common. If
24VAC is present, the thermostat is
functional. Check the heating equipment
to find the cause of the problem.

Loose or broken wire connection
between thermostat and heating
equipment.

Check for 24VAC between the heat
terminal (W) and transformer common. If
voltage is not present, check wire
connection (loose or broken) between
the thermostat and the heating
equipment.

Cooling does not turn on (Cool
On is solid in the display)

Cooling equipment failure.

Check for 24VAC at the equipment on
the secondary side of the transformer
between power and common. If voltage
is not present, check the cooling
equipment to find the cause of the
problem.
Check for 24VAC between the cool
terminal (Y) and transformer common. If
24VAC is present, the thermostat is
functional. Check the cooling equipment
to find the cause of the problem.

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