Aube TH146 N U Thermostat User Manual

Home

href="
TH146-N-U  
Installation Guide  
Non-programmable H/C Controller  
Removable  
Connector *  
Removable  
Connector *  
AC144-03 Outdoor  
Temperature Sensor  
TH146 User Console  
CT280-3H3C Control Module  
*
To remove a connector from the control module, pry with a screwdriver.  
1
. Introduction  
2. Installation  
1
.1 Applications  
2.1 Control Module (CT280-3H3C)  
Configure the control module according to your type of heating/cool-  
ing system using DIP switches on the back of the module.  
The TH146-N-U electronic controller can be used with any of the fol-  
lowing heating/cooling systems:  
Heat pump  
HVAC  
Heat pump  
HVAC  
1H1C, 2H1C, 2H2C, 3H1C, 3H2C, 3H3C, 4H2C  
1H, 2H, 3H, 1C, 2C, 3C, 1H1C, 1H2C, 2H1C, 2H2C,  
H3C, 3H1C, 3H2C, 3H3C  
2
The following devices can be connected to the controller:  
air recirculation fan  
humidifier  
dehumidifier or air exchanger  
dual-register meter (dual energy)  
remote control device (for the unoccupied mode)  
1
.2 Supplied Parts  
CT280-3H3C control module  
Install the control module near the heating/cooling system, away  
from any heat source.  
TH146 console with two wall anchors and mounting screws  
AC144-03 outdoor temperature sensor (3 m or 10 ft) with mount-  
ing clip (see section 2.7)  
2
.2 User Console (TH146)  
Install the console in a central location. Avoid locations with air  
drafts (e.g., top of staircase or air outlet) or stagnant air (behind a  
door). Do not install the console on a wall hiding air ducts nor  
expose it to direct sunlight.  
1
.3 Accessories  
RC845 relay (see section 2.4)  
AC146-410 plenum temperature sensor (see section 2.8)  
CT241 telephone controller (see section 2.10)  
NOTE: If this controller replaces an old thermostat, any two of the  
wires that were connected to the thermostat can be used to connect  
the user console to the control module. The maximum wiring length  
is 30 m (100 ft).  
TH146-N-U  
1/12  
href="
Install the sensor on the side of the plenum and  
position it such that its aperture faces the air flow.  
Choose a location about 1.5 m (5 ft) above the floor on an  
inside wall.  
Loosen the captive screw under the console.  
Connect the sensor to controller terminals PS  
and CS (no polarity). For more information, refer  
to the instructions provided with the sensor.  
Detach the console from its base by pulling the bottom section.  
Secure the base using the wall anchors and screws.  
NOTE: The maximum wiring length is 30 m (100  
ft).  
Connect the console to controller terminals TH and TH (no  
polarity).  
2
.9 Dual-energy Input  
2
.3 Heating/Cooling System  
NOTE: The dual-energy input can be used only with a heat pump  
The terminals used to connect the heating/cooling system depend  
on the type of system. See the appropriate wiring table on page 4.  
equipped with auxiliary heat.  
The dual-energy input can be connected to the dual-register meter  
equipped with a normally open (NO) dry contact. Connect the con-  
troller terminals DE and CC to the meter terminals (yellow and red  
wires).  
2
.4 RC845 Relay  
If you have an add-on installation, you might need an RC845 relay  
to connect the furnace (auxiliary heat) and its fan to the controller.  
Install the relay near the control module and connect the wires as  
follows:  
The contact closes when the outdoor temperature drops below the  
temperature setting on the meter. When the contact is closed, the  
heat pump is disabled and only the auxiliary heat can be used.  
relay terminals W, G and C to controller terminals W1, G and C.  
2
.10 Unoccupied Mode Input  
relay terminals T and T to the appropriate furnace terminals: T  
and T (oil); TH and TH (gas); R and W (electric).  
To use the unoccupied mode, the controller requires a remote con-  
trol device such as Aube’s CT241 telephone controller equipped  
with a normally open (NO) dry contact placed between terminals UN  
and CC of the controller. The unoccupied mode is activated when  
the contact closes. (See section 5.6.)  
NOTE: Refer to the relay’s installation instructions for more details.  
If you have a 3H1C or 4H2C heat pump, a second RC845 relay  
might be required to connect the second auxiliary heat.  
2
.5 Humidifier  
3
. Configuration  
Connect the humidifier in series with the power supply between  
controller terminals H and H (dry contact).  
3
.1 Configuration Switches  
2
.6 Dehumidifier / Air Exchanger  
To access the configuration switches, loosen the captive screw  
under the console and separate the console from its base by pulling  
it from the bottom part.  
Connect the dehumidifier or air exchanger in series with the power  
supply between controller terminals D and D (dry contact).  
3
.1.1 Backlight (SW1-1)  
BL ON: The screen is always backlit.  
2
.7 Outdoor Sensor (AC144-03)  
AUTO: The screen is backlit only when a button is pressed. The  
backlight remains on for 12 seconds.  
The outdoor sensor is required for the following:  
outdoor temperature display  
3
.1.2 Access Mode (SW1-2)  
balance points (heat pumps only, see section 4.2)  
defrost point (heat pumps only, see section 4.3)  
automatic humidity control (see section 5.5)  
INST: Installer mode. Gives access to all configuration parameters.  
NOTE: In installer mode, the short-cycle protection is disabled  
and the interstage delay is reduced to 1 minute.  
When installing the sensor, observe the following guidelines:  
USER: User mode. Gives access to configuration parameter 17  
Avoid locations where the sensor can be covered with snow  
or exposed to direct sunlight.  
(humidity setpoint or humidity offset) only.  
Avoid air outlets and concealed chimneys or stove pipes.  
3
.1.3 Keypad Lock (SW1-3)  
Install the sensor using its mounting clip and connect it to controller  
terminals OS and CS (no polarity).  
I: The keypad is locked. Settings cannot be changed.  
O: The keypad is unlocked.  
NOTE: The maximum wiring length is 30 m (100 ft).  
3
.2 Software Configuration  
2
.8 Plenum Sensor (AC146-410)  
Place the console in Installer mode (INST) using the SW1-2 switch  
The plenum sensor is required for the following:  
on the back of the console.  
low temperature limit inside the plenum (HVAC only)  
high temperature limit inside the plenum (HVAC only)  
fan limit if gas heating is used (HVAC only)  
high pressure protection during defrost cycle (This protection  
is generally needed for add-on installations only. It is not  
needed if the heat pump is not connected to the controller  
terminal WW.)  
Press the Mode button for 3 seconds to access the configuration  
menu (see page 8). The first menu item (parameter) is displayed.  
To view another menu item, briefly press the Mode button.  
 To modify a parameter, press either  
button.  
To exit the configuration menu, press  
.
Return the console to User mode (USER).  
TH146-N-U  
2/12  
href="
the controller is configured for a new installation, the heat pump  
and the auxiliary heat can operate simultaneously.  
4
. Principles of Operation  
4
.5 Interstage Delay  
4
.1 Automatic Heating/Cooling Changeover  
Interstage Delay is the time allocated for the temperature to return  
to an acceptable value when it deviates too far from the setpoint. If  
this time has elapsed, the next heating or cooling stage is activated.  
The heating or cooling stage will be deactivated when the tempera-  
ture returns to an acceptable value. The Interstage Delay is fixed at  
With automatic heating/cooling mode changeover, there’s no need  
to adjust the controller at every change of season or weather condi-  
tion. The controller switches automatically between heating mode  
and cooling mode to maintain the desired temperature. The mode  
changeover is triggered as follows:  
4
minutes if the controller is configured for an HVAC system and is  
user-adjustable if it is configured for a heat pump (see page 8,  
item 6).  
The controller switches to cooling mode when the indoor tem-  
perature is higher than the setpoint by more than 1.5°C (2.5°F)  
for 15 minutes.  
4
.6 Low and High Temperature Limits  
The controller switches to heating mode when the indoor tem-  
perature is lower than the setpoint by more than 1.5°C (2.5°F)  
for 15 minutes.  
Low Temperature Limit (LLMT) and High Temperature Limit (HLMT)  
are used to keep the plenum from becoming too cold or too hot.  
During cooling, if the plenum temperature is lower than LLMT, a  
cooling stage is deactivated starting with the one that was last acti-  
vated. If, after a while, the temperature is still too low, another cool-  
ing stage is deactivated and so on. Likewise, during heating, if the  
plenum temperature is higher than HLMT, a heating stage is deacti-  
vated starting with the one that was last activated. If, after a while,  
the temperature is still too high, another heating stage is deacti-  
vated and so on. (see page 8, items 7 and 8.)  
4
.2 Balance Points (heat pumps only)  
Balance points are used to disable the heat pump or the auxiliary  
heating when the outdoor temperature is below or above a set tem-  
perature.  
When the outdoor temperature is below the balance point low  
bP L), the heat pump is disabled and only auxiliary heating can  
(
be used (see page 8, item 2).  
WARNING: LLMT and HLMT can be used in parallel with an  
UL353-approved device but they do not replace such device.  
NOTE: LLMT and HLMT cannot be used if the plenum temperature  
sensor is not connected to the controller.  
When the outdoor temperature is above the balance point high  
(bP H), the auxiliary heat is disabled and only the heat pump  
can be used (see page 8, item 3).  
NOTE: Balance Points cannot be used if the AC144-03 outdoor  
temperature sensor is not connected to the controller.  
4.7  
Smart Fan  
When Smart Fan is enabled (see page 8, item 12), the fan operates  
as follows:  
4
.3 Heating During Defrost (heat pumps only)  
The auxiliary heat is activated during defrost except under the fol-  
lowing conditions:  
During the unoccupied mode (i.e., when you are away from  
home), the fan operates only when heating or cooling is acti-  
vated.  
When the outdoor temperature is above the defrost point (see  
page 8, item 4). NOTE: This condition will not apply if the  
AC144-03 outdoor sensor is not connected to the controller.  
The fan operates continuously the rest of the time.  
NOTE: For Smart Fan to work, set the fan to On (see section 5.2).  
When the plenum temperature is above 40°C (104°F) for  
add-on installations only. The auxiliary heat is re-activated  
when the plenum temperature drops below 32°C (90°F).  
NOTE: This condition will not apply if the AC146-410 plenum  
sensor is not connected to the controller.  
4
.8 Automatic Humidification / Dehumidification Changeover  
If a humidifier and a dehumidifier are both connected to the control-  
ler, the controller will automatically switch between the two devices  
to maintain the desired humidity level. The changeover occurs when  
the humidity deviates from the setpoint by more than 3% for 30 min-  
utes.  
NOTE: The auxiliary heat’s short-cycle protection is disabled during  
defrost.  
4
.4 Types of Heat Pump Installations  
The controller can be configured for either of the following types of  
heat pump installations (see page 8, item 5).  
Add-on Installation: This type of installation is performed  
when adding a heat pump to an existing furnace. When the  
heat pump is installed, the furnace becomes the auxiliary heat  
source. In this type of installation, the indoor coils are usually  
installed downstream of the auxiliary heat source. When the  
controller is configured for an add-on installation, the heat  
pump is disabled during auxiliary heating to prevent overpres-  
sure.  
New Installation: In this type of installation, as there is not  
already a furnace, the auxiliary heat source is installed at the  
same time as the heat pump. In this type of installation, the  
indoor coils are located upstream of the auxiliary heat. When  
TH146-N-U  
3/12  
href="
Wiring Tables  
Heat Pump  
2H1C  
Terminal  
TH  
TH  
PS  
CS  
OS  
DE  
CC  
UN  
H
Device  
1H1C  
3H1C  
2H2C  
3H2C  
4H2C  
3H3C  
Console  
Connect the console between the TH terminals (no polarity)  
Plenum sensor  
Common S  
Connect the plenum sensor between the PS and CS terminals (no polarity)  
Common terminal for the plenum sensor and the outdoor sensor  
Outdoor sensor  
Dual Energy  
Connect the outdoor sensor between the CS and OS terminals (no polarity)  
Connect the dual-register meter between the DE and CC terminals (no polarity)  
Common terminal for the dual-energy meter and the unoccupied mode input  
Connect a dry contact between the UN and CC terminals (no polarity)  
Common C  
Unoccupied mode input  
Humidifier (24 Vac / 1 A)  
Connect the humidifier between the H terminals (dry contact)  
Connect the dehumidifier between the D terminals (dry contact)  
H
D
Dehumidifier (24 Vac / 1 A)  
Power (24 Vac)  
D
R
C
Y1  
Compressor 1 (24 Vac / 1 A)  
Compressor 2 (24 Vac / 1 A)  
Compressor 3 (24 Vac / 1 A)  
Auxiliary heat 1 (24 Vac / 1 A)  
Auxiliary heat 2 (24 Vac / 1 A)  
Reversing valve (24 Vac / 1 A)  
Fan (24 Vac / 1A)  
Y2  
Y3  
W1  
W2  
W3/O/B  
G
L
Fault (24 Vac / 5 mA)  
WW  
NC  
Defrost (24 Vac / 5 mA)  
Not used  
HVAC  
2C  
Terminal  
TH  
TH  
PS  
CS  
OS  
DE  
CC  
UN  
H
Device  
1H  
2H  
3H  
1C  
3C  
1H1C 1H2C 2H1C 2H2C 2H3C 3H1C 3H2C 3H3C  
Console  
Connect the console sensor between the TH terminals (no polarity)  
Plenum sensor  
Common S  
Connect the plenum sensor between the PS and CS terminals (no polarity)  
Common terminal for both plenum sensor and outdoor sensor  
Connect the outdoor sensor between the OS and CS terminals (no polarity)  
Not used  
Outdoor sensor  
Common C  
Common terminal for the unoccupied mode input  
Unoccupied mode input  
Connect a dry contact between UN and R terminals (no polarity)  
Humidifier (24 Vac / 1 A)  
Connect the humidifier between the H terminals (dry contact)  
H
D
Dehumidifier (24 Vac / 1 A) Connect the dehumidifier between the D terminals (dry contact)  
D
R
Power (24 Vac)  
C
Y1  
Y2  
Y3  
W1  
W2  
Cooling unit 1 (24 Vac / 1 A)  
Cooling unit 2 (24 Vac / 1 A)  
Cooling unit 3 (24 Vac / 1 A)  
Heating unit 1 (24 Vac / 1 A)  
Heating unit 2 (24 Vac / 1 A)  
W3/O/B Heating unit 3 (24 Vac / 1 A)  
G
L
Fan (24 Vac / 1 A)  
Not used  
Not used  
Not used  
WW  
NC  
TH146-N-U  
4/12  
href="
Wiring Diagram: 2H1C Heat Pump — New Installation  
Compressor  
Auxiliary Heat  
Reversing Valve  
AC146-410  
AC144-03  
Dual Energy  
CT241  
Fan  
Fault  
Humidifier  
Dehumidifier  
Defrost  
TH146-N-U  
5/12  
href="
Wiring Diagram: 3H2C Heat Pump — Add-on Installation  
Compressor 1  
Compressor 2  
Reversing Valve  
AC146-410  
AC144-03  
Dual Energy  
CT241  
Fault  
Humidifier  
Defrost  
Dehumidifier  
Furnace  
TH146-N-U  
6/12  
href="
Wiring Diagram: 3H2C HVAC  
Cooling Unit 1  
Cooling Unit 2  
AC146-410  
AC144-03  
Heating Unit 1  
Heating Unit 2  
CT241  
Humidifier  
Heating Unit 3  
Fan  
Dehumidifier  
TH146-N-U  
7/12  
href="
Configuration Menu  
Item  
HP  
HVAC  
Parameters  
Display  
Options  
Default  
Description  
Select the temperature display format.  
1
Temperature format  
°C / °F  
°C  
Set the bP L limit (see section 4.2).  
NOTE: Lower bP L below its minimum (- -) if you do not wish to use this  
function.  
-
30 to 10°C  
-10°C  
(14°F)  
2
3
4
*
*
*
Balance point low  
Balance point high  
Defrost point  
(
-22 to 50°F)  
Set the bP H limit (see section 4.2).  
NOTE: Raise bP H above its maximum (- -) if you do not wish to use this  
function.  
-
5 to 30°C  
5°C  
(41°F)  
(
23 to 86°F)  
Set the defrost point temperature (see section 4.3).  
NOTE: Raise the defrost point above its maximum (- -) if you do not wish to  
use this function.  
-
10 to 15°C  
10°C  
(50°F)  
(
14 to 59°F)  
Set according to the type of heat pump installation (see section 4.4).  
Ad (add-on): Use this setting when the indoor coils are located down-  
stream of the auxiliary heat source. This is generally the case for add-on  
installations.  
5
6
*
*
Installation type  
Ad / nr  
Ad  
nr (normal): Select this setting when the indoor coils are located  
upstream of the auxiliary heat source. This is generally the case for new  
installations.  
Auxiliary  
interstage delay  
5 to 90 min.  
30 min.  
- -  
Set the interstage delay for the auxiliary stage (see section 4.5).  
Set the low temperature limit of the plenum (see section 4.6).  
NOTE: This function is not used if you lower LLMT below its minimum (- -)  
or if the plenum temperature sensor is not connected to the controller.  
-
(
10 to 20°C  
14 to 68°F)  
7
Low temperature limit  
High temperature limit  
Set the high temperature limit of the plenum (see section 4.6).  
NOTE: This function is not used if you raise HLMT above its maximum (- -)  
or if the plenum temperature sensor is not connected to the controller.  
3
0 to 90°C  
86 to 194°F)  
8
9
- -  
4
(
Select the number of heating/cooling cycles per hour. For optimal heating  
control, use the setting that matches your system as follows: 3=20 min (hot  
water, 90%+ high-efficiency furnace), 4=15 min (gas or oil), 5=12 min (gas  
or oil), 6=10 min (electric).  
Cycles per hour  
2 to 6  
This setting determines the fan operation in automatic mode when the sys-  
tem is in heating mode (see section 5.2).  
EL (electric heating): The fan starts when heating starts and stops when  
heating stops.  
10  
Heat type  
GA / EL  
EL  
GA (gas or oil heating): The fan starts when the temperature inside the  
plenum rises above the Fan Limit (see item 11) and stops when the tem-  
perature drops 12°C below the Fan Limit. Note: The fan will not start if  
the plenum temperature sensor is not connected to the controller.  
This parameter is available only when gas heating is selected (see item 10).  
3
8 to 90°C  
80°C  
(176°F)  
WARNING: FLMT can be used in parallel with an UL353-approved  
device but they do not replace such device.  
11  
Fan limit  
(
100 to 194°F)  
NOTE: The fan will not start if you raise FLMT above its maximum (--).  
On: Smart Fan is On (see section 4.7).  
OF: Smart Fan is Off.  
1
2
3
Smart Fan  
On / OF  
OF  
0
to 9°C  
0°C  
(0°F)  
Set the amount of temperature setback when the controller is placed in  
Unoccupied mode (see section 5.6).  
1
Temperature setback  
(
0 to 16°F)  
Select between displaying the outdoor temperature or the indoor humidity  
level.  
Outdoor temperature  
display  
On: Displays the outdoor temperature.  
OF: Displays the indoor humidity level.  
1
1
1
4
5
6
On / OF  
On  
HE  
OF  
NOTE: To display the outdoor temperature, the outdoor sensor must be  
connected.  
Co (conventional): The humidifier will operate if the humidity is too low. If  
the fan is not already On, it will turn On at the same time as the humidi-  
fier.  
Humidifier  
operating mode  
Co / HE / Fn  
HE (heat): The humidifier can operate only when heating is activated.  
Fn (fan): The humidifier can operate as long as the fan is running,  
whether heating is activated or not.  
NOTE: The humidifier is disabled when cooling is activated.  
Allows you to set the humidity control to automatic mode.  
On (automatic): The humidity level is automatically regulated by the con-  
troller according to the outdoor temperature to avoid condensation or ice  
formation on windows while providing enough humidity for your comfort  
Automatic humidity  
adjustment  
On / OF  
(
see item 17).  
OF (manual): The user manually sets the humidity level (see item 17).  
Set the desired humidity level. This parameter is available only when the  
humidity control is placed in manual mode (see item 16).  
Humidity setpoint  
Humidity offset  
5 to 60%  
-9 to 9%  
5 %  
0
This parameter is available only when the humidity control is placed in auto-  
matic mode (see item 16). It allows the user to apply an offset to the auto-  
matic humidity control. For example, the user can enter a negative offset if  
there is ice formation or condensation on the windows.  
1
7**  
*
Parameters 2 to 6 are not available when the controller is configured for 1H1C, 2H2C or 3H3C heat pump.  
*
* Only parameter 17 is available when the controller is in user mode (SW1-2 switch).  
TH146-N-U  
8/12  
href="
TH146-N-U  
User’s Guide  
Non-programmable H/C Controller  
Emergency heat  
indicator  
Appears when the  
temperature setpoint  
is displayed  
System fault  
indicator  
Dual energy  
Auxiliary heat is On  
Indoor temperature  
Heating is On  
Cooling is On  
System operating  
mode selection  
Outdoor temperature  
or indoor humidity  
Fan operating  
mode selection  
Fan is in  
continuous mode  
System operating mode  
Unoccupied  
mode is On  
Humidifier  
is On  
Temperature adjustment  
5
.3 Indoor Humidity / Outdoor Temperature Display  
5
. Operation  
The controller can display either the indoor humidity level or the out-  
door temperature (see page 8, item 14).  
5
.1 System Operating Mode  
Press the Mode button to place the system in one of the following  
modes:  
Outdoor  
Indoor  
temperature  
humidity  
HEAT The system is in heating mode.  
COOL The system is in cooling mode.  
5.4  
Temperature Setting  
The system is in automatic changeover mode. (The  
AUTO system switches between heating mode and cooling  
mode to maintain the desired temperature.)  
The actual (measured) indoor temperature is normally displayed. To  
view the setpoint temperature, press one of the  
The setpoint is displayed for 5 seconds and is indicated by the  
symbol.  
buttons once.  
OFF  
The system is off.  
The system is in emergency heat mode. Only auxiliary  
heating is used when there is a call for heat. (This  
mode applies only when the controller is connected to  
a heat pump equipped with auxiliary heating).  
To modify the temperature setpoint, press one of the  
until the desired temperature is displayed.  
buttons  
EHEAT  
NOTE: If the controller is in automatic heat/cool changeover (see  
section 5.1), the setpoint is automatically reduced or raised by 1°C  
(1.8°F) when the controller switches to heating mode or to cooling  
mode respectively. For example, if the setpoint is 24°C (75°F) in  
heating mode, it will become 25°C (77°F) in cooling mode and will  
return to 24°C (75°F) when the controller switches back to heating  
mode.  
5
.2 Fan Operating Mode  
button to select the fan operating mode.  
Press the  
In automatic mode, the fan runs only when heating or cooling is  
activated. NOTE: For gas-operated HVAC systems, there might  
be a delay before the fan starts or stops when heating is acti-  
vated or deactivated.  
5
.5 Humidity Setting  
In continuous mode, the fan runs continuously and the  
sym-  
NOTE: Skip this section if you do not have a humidifier connected to  
bol is displayed. NOTE: If Smart Fan is enabled, when the ther-  
mostat is in unoccupied mode, the fan runs only when heating  
or cooling is activated.  
the controller.  
The humidity level can be set manually or automatically (see  
page 8, item 16).  
TH146-N-U  
9/12  
href="
Manual Setting  
TH146 USER CONSOLE  
Temperature setpoint range: 5°C to 30°C (40°F to 86°F)  
In manual setting, the user sets the humidity level (5 to 60%).  
1
2
)
)
Press the Mode button for 3 seconds.  
Humidity setpoint range: 5 to 60%  
Press the  
level.  
buttons to set the humidity  
Indoor temperature display range: 0°C to 70°C (32°F to 158°F)  
Outdoor temp. display range: -50°C to 70°C (-58°F to 158°F)  
Temperature display resolution: 0.5°C (1°F)  
Program protection: non-volatile memory  
3
)
Press the  
button to exit.  
The  
symbol is displayed when the humidifier  
is On.  
Operating temperature: 0°C to 50°C (32°F to 122°F)  
Storage temperature: -20°C to 50°C (-4°F to 122°F)  
Humidity conditions: 0 to 95%, non-condensing  
Dimensions: 79 x 79 x 24 mm (3.1 x 3.1 x 1 in.)  
Automatic Setting  
In automatic setting, the controller sets the humidity level based on  
the outdoor temperature to prevent ice formation or condensation  
on windows. However, the user can apply an offset (-9 to 9%). For  
example, the user can enter a negative offset if there is too much  
condensation on the windows.  
7
. Warranty  
1
2
3
)
)
)
Press the Mode button for  
seconds.  
3
Honeywell warrants this product, excluding battery, to be free from  
defects in the workmanship or materials, under normal use and  
service, for a period of three (3) years from the date of purchase by  
the consumer. If at any time during the warranty period the product  
is determined to be defective or malfunctions, Honeywell shall  
repair or replace it (at Honeywell's option).  
Offset set by user  
Press the  
set the offset value.  
buttons to  
Humidity level  
set by controller  
Press the  
exit.  
button to  
If the product is defective,  
The  
symbol is displayed  
(i) return it, with a bill of sale or other dated proof of purchase, to  
the place from which you purchased it, or  
when the humidifier is On.  
(ii) contact Honeywell. Honeywell will make the determination  
whether the product should be returned, or whether a  
replacement product can be sent to you.  
This warranty does not cover removal or reinstallation costs. This  
warranty shall not apply if it is shown by Honeywell that the defect or  
malfunction was caused by damage which occurred while the  
product was in the possession of a consumer.  
5
.6  
Unoccupied Mode  
You can place the controller in the unoccupied mode using a remote  
control device such as Aube’s CT241 telephone controller. In this  
mode, the temperature is lowered in heating mode or raised in cool-  
ing mode (see page 8, item 13). The  
unoccupied mode.  
icon appears during the  
Honeywell's sole responsibility shall be to repair or replace the  
product within the terms stated above. HONEYWELL SHALL NOT  
BE LIABLE FOR ANY LOSS OR DAMAGE OF ANY KIND,  
INCLUDING ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES  
RESULTING, DIRECTLY OR INDIRECTLY, FROM ANY BREACH  
OF ANY WARRANTY, EXPRESS OR IMPLIED, OR ANY OTHER  
FAILURE OF THIS PRODUCT. Some provinces and states do not  
allow the exclusion or limitation of incidental or consequential  
damages, so this limitation may not apply to you.  
THIS WARRANTY IS THE ONLY EXPRESS WARRANTY  
HONEYWELL MAKES ON THIS PRODUCT. THE DURATION OF  
ANY IMPLIED WARRANTIES, INCLUDING THE WARRANTIES  
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR  
PURPOSE, IS HEREBY LIMITED TO THE THREE-YEAR  
DURATION OF THIS WARRANTY. Some provinces and states do  
not allow limitations on how long an implied warranty lasts, so the  
above limitation may not apply to you.  
NOTE: Automatic heating/cooling changeover is disabled during the  
unoccupied mode.  
5
.7 Temporary Bypass  
If you change the temperature setpoint (using the  
buttons) in  
unoccupied mode, the controller temporarily bypasses the current  
setpoint. The new setpoint will be maintained for 2 hours, after  
which the controller will return to the previous setpoint. The  
flashes during the bypass.  
icon  
6
. Technical Specifications  
CT280-3H3C CONTROL MODULE  
Power supply: 24 VAC  
This warranty gives you specific legal rights, and you may have  
other rights which vary by province, state or region.  
Current consumption: 150 mA  
Maximum load per output: 1 A @ 24 VAC  
Short cycle protection  
8
. Technical Assistance  
Honeywell Limited  
705 Montrichard Avenue  
Saint-Jean-sur-Richelieu, Quebec  
J2X 5K8  
Minimum off-time: 4 minutes  
Minimum on-time: 2 minutes  
Control cycles: 2 to 6 per hour  
Operating temperature: 0°C to 50°C (32°F to 122°F)  
Storage temperature: -20°C to 50°C (-4°F to 122°F)  
Humidity conditions: 0 to 95%, non-condensing  
Dimensions: 95 x 137 x 30 (3.8 x 5.4 x 1.2 in.)  
Canada  
1
-800-831-2823  
TH146-N-U  
10/12  
TH146-N-U  
11/12  
TH146-N-U  
Printed in USA  
09/2011  
12/12  

Lux Products P721 Thermostat User Manual

Honeywell SP970A Thermostat User Manual

Lux Products RS4000 Thermostat User Manual

Honeywell T8611M Thermostat User Manual

White Rodgers 1.00E+56 Thermostat User Manual

White Rodgers 1A11 2 Thermostat User Manual

Bryant TZEMT400AB32MAA Thermostat User Manual

Carrier TB NHP Thermostat User Manual

White Rodgers 1G66 Thermostat User Manual

Honeywell RTH6500WF Thermostat User Manual