TH146 User Console
TH146-N-DE
Installation Guide
Non-programmable Heat Pump Controller
AC144-03 Outdoor
Temperature Sensor
CT280-HP-2H1C Control Module
1. Introduction
1.1
Applications
The TH146-N-DE electronic controller can be used to control a heat
pump system. The following devices can be connected to the controller:
heat pump
auxiliary heating (furnace)
air recirculation fan
humidifier
dual-register meter (dual energy)
remote control device (for the unoccupied mode)
1.2
Supplied Parts
• CT280-HP-2H1C control module
• TH146 console with two wall anchors and mounting screws
• AC144-03 outdoor temperature sensor (3 m or 10 ft) with
mounting clip (see section 2.7)
1.3
Accessories
• RC845 relay (see section 2.5)
• AC146-410 plenum temperature sensor (see section 2.8)
• CT241 telephone controller (see section 2.10)
2. Installation
2.1
Control Module (CT280-HP-2H1C)
Install the control module on the furnace’s electrical panel, away
from the heat source.
2.2
User Console (TH146)
Install the console in the area where you wish to measure the temperature and humidity. Avoid locations where there are 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.
NOTE: If this controller replaces an existing thermostat, the wires
that were connected to the thermostat can be used to connect the
console. The maximum wire length is 30 m (100 feet).
1) Choose a location about 5 ft. (1.5 m) above the floor on an
inside wall.
2) Loosen the captive screw under the console.
3) Detach the console from its base by pulling the bottom section.
4) Secure the base using the wall anchors and screws.
5) Connect the console to controller terminals TH and TH (no
polarity).
2.3
Heat Pump
Connect the heat pump to the controller as follows:
• Controller terminals R and C to heat pump terminals R and C
(see section 2.4)
• Controller terminal Y to heat pump terminal Y
• Controller terminal O/B to heat pump terminal O
• Controller terminal WW to heat pump terminal WW
TH146-N-DE 400-280-000-G 9/22/06 1/8
• Controller terminal L to heat pump terminal L
• Controller terminal W to heat pump terminal W (see section
2.5)
• Controller terminal G to heat pump terminal G (see section
2.5)
24 V Transformer
2.4
You might need a 24 V transformer if you have an add-on installation. Connect the transformer to the controller terminals R and C (24
Vac In ).
RC845 Relay
2.5
If you have an add-on installation, you might need a relay such as
Aube’s RC845 to connect the furnace (auxiliary heating) and its fan
to the controller. Install the relay near the control module. Connect
the wires of the RC845 relay as follows:
• relay terminals W, G and C to controller terminals W, G and
C.
• relay terminals T and T to the appropriate furnace terminals:
T and T (oil); TH and TH (gas); R and W (electric).
NOTE: Refer to the relay’s installation instructions for more details.
Humidifier
2.6
Connect the humidifier to controller terminals C and H (no polarity).
2.7
Outdoor Sensor (AC144-03)
The outdoor sensor is required for the following:
• balance points
• automatic humidity control
• outdoor temperature display
• defrost point
When installing the sensor, observe the following guidelines:
• Avoid locations where the sensor can be covered with snow
or exposed to direct sunlight.
• Avoid air outlets and concealed chimneys or stove pipes.
Install the sensor using its mounting clip and connect it to controller
terminals OS and CS (no polarity).
NOTE: The maximum wire length is 30 m (100 feet).
Plenum Sensor (AC146-410)
2.8
The plenum sensor measures the temperature inside the plenum.
This data is required for high pressure protection during the defrost
cycle (see section 4.3).
NOTE: The plenum sensor is generally needed for add-on installations only. It is not needed if the heat pump is not connected to the
controller terminal WW.
Install the sensor on the side of the plenum and
position it such that its aperture faces the air
flow.
Connect the sensor to controller terminals PS
and CS (no polarity). For more information,
refer to the instructions provided with the sensor.
NOTE: The maximum wire length is 30 m (100
feet).
Dual-energy Input
2.9
The dual-energy input can be connected to the dual-register meter
equipped with a normally open (NO) dry contact. Connect the terminals DE and CC of the controller to the terminals (yellow and red
wires) of the dual-register meter.
When the contact is open, the heat pump and auxiliary heating
operate as usual. The contact closes when the outdoor temperature
drops below the set threshold. When the contact is closed, the heat
pump is disabled and only the auxiliary heat can be used.
Unoccupied Mode Input
2.10
To use the unoccupied mode, the controller requires a remote control device such as Aube’s telephone controller CT241 equipped
with a dry-contact output (normally open). The unoccupied mode is
activated when the contact closes. (See section 5.6.)
2.11
Wiring Table
24 Vac In RCPower; 24 Vac
Thermostat THTHConsole connection
Plenum
Sensor
Outdoor
Sensor
Dual Energy DECCDual energy connection
Unoccupied UNCCUnoccupied mode connection
Heat Pump RCPower; 24 Vac / 3 A
Aux. Heat WGOutput; 24 Vac / 1 A (auxiliary heat and fan)
Humidifier CHOutput; 24 Vac / 1 A
PSCSPlenum temperature sensor connection
OSCSOutdoor temperature sensor connection
(requires a normally open contact)
(requires a normally open contact)
Y Output; 24 Vac / 1 A (compressor)
O/B Output; 24 Vac / 1 A
(reversing valve; energized on cool)
WW Input; 24 Vac / 2 mA (defrost)
L Input; 24 Vac / 2 mA (fault)
3. Configuration
3.1
Switch Configuration
To access the 3 configuration switches, loosen the captive screw
under the console and separate the console from its base by pulling
it from the bottom part.
TH146-N-DE 400-280-000-G 9/22/06 2/8
3.1.1 Backlight (SW1)
BL ON: The screen is always backlit.
AUTO: The screen is backlit only when a button is pressed. The
backlight remains on for 12 seconds.
3.1.2 Access Mode (SW2)
INST: Installer mode. Gives access to all configuration parameters.
NOTE: In this mode, the short-cycle protection is disabled and
the interstage delay is reduced to 1 minute.
USER: User mode. Gives access to configuration parameter 12
(humidity setpoint or humidity offset) only.
3.1.3 Keypad Lock (SW3)
I: The keypad is locked. Settings cannot be changed.
O: The keypad is unlocked.
3.2
Software Configuration
n Place the controller in Installer mode (INST) using the SW2
selector switch on the back of the console.
o Press the Mode button for 3 seconds to access the configura-
tion menu (see page 4). The first menu item (parameter) is displayed.
p To view another menu item, briefly press the Mode button.
The following table shows the order in which the parameters
appear as well as a description of each parameter.
q To modify a parameter, press either button.
r To exit the configuration menu, press .
s Return the controller to User mode (USER) using the SW2
selector switch.
4. Principles of Operation
4.3
Heating During Defrost
The auxiliary heat is activated during defrost except under the following conditions:
• When the outdoor temperature is above the defrost point (see
page 4, item 4). NOTE: This condition will not apply if the
AC144-03 outdoor sensor is not connected to the controller.
• When the plenum temperature is above 40°C (104°F). 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.
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 4, 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 overpressure.
• 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
the controller is configured for a new installation, the heat pump
and the auxiliary heat can operate simultaneously.
4.5
“Smart Fan”
4.1
Automatic Heating/Cooling Changeover
With automatic heating/cooling mode changeover, there’s no need
to adjust the controller at every change of season or weather condition. The controller switches automatically between heating mode
and cooling mode to maintain the desired temperature. The mode
changeover occurs as follows:
• The controller switches to cooling mode when the indoor temperature is higher than the setpoint by more than 1.5°C (2.5°F)
for 15 minutes.
• The controller switches to heating mode when the indoor temperature is lower than the setpoint by more than 1.5°C (2.5°F)
for 15 minutes.
4.2
Balance Points
Balance points are used to disable the heat pump operation or auxiliary heating below or above a certain temperature.
• 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 4, item 2).
• When the outdoor temperature is above the balance point high
(bP H), the auxiliary heat is disabled (see page 4, item 3) and
only the heat pump can be used.
NOTE: Balance points will not work if the AC144-03 outdoor temperature sensor is not connected to the controller.
When “smart fan” is enabled (see page 4, item 7), the fan operates
as follows:
• During the unoccupied mode (i.e., when you are away from
home), the fan operates only when heating or cooling is activated.
• The fan operates continuously the rest of the time.
NOTE: “Smart fan” is useful only when the fan is set to On (see section 5.2).
4.6
Interstage Delay
The interstage delay is the time that the temperature has to return to
an acceptable value when it deviates too much from the setpoint.
After this delay, auxiliary heating is activated. Auxiliary heating will
be deactivated once the temperature returns to an acceptable value
(see page 4, item 8).
TH146-N-DE 400-280-000-G 9/22/06 3/8
Configuration Menu
Item Parameters Display Options Default Description
1 Temperature scale °C / °F °C Select the temperature display format.
2 Balance point low
3 Balance point high
4 Defrost point
5 Installation type Ad / nr Ad
6 Cycles per hour 2 to 6 4
7 “Smart fan” On / OF OF
8 Interstage delay 5 to 90 min. 10 min. Set the interstage delay (see section 4.6).
9
10
11
12
NOTE: Only the humidity setpoint or humidity offset (item 12) is available when the controller is placed in user mode (SW2 switch).
Outdoor
temperature display
Humidifier
operating mode
Automatic humidity
adjustment
Humidity setpoint 5% to 60% 5%
Humidity offset -9% to 9% 0%
-30°C to 10°C
(-22°F to 50°F)
-5°C to 30°C
(23°F to 86°F)
-10°C to 15°C
(14°F to 59°F)
On / OF On
HE / Fn HE
On / OF OF
-10°C
(14°F)
5°C
(41°F)
10°C
(50°F)
Set the bP L value (see section 4.2).
Set the bP H value (see section 4.2).
During defrost, auxiliary heating is activated when the outside
temperature is below the defrost point (see section 4.3).
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
downstream of the auxiliary heat source. This is generally the
case for add-on installations.
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.
Allows you to select the number of cycles per hour. It is recommended to use the default setting except in exceptional cases.
On: “smart fan” is On (see section 4.5).
OF: “smart fan” is Off.
Select between displaying the outdoor temperature or displaying the indoor humidity level.
On: Displays the outdoor temperature.
OF (Off): Displays the indoor humidity level.
NOTE: To display the outdoor temperature, the outdoor sensor
must be connected.
HE (Heat): The humidifier can operate only when heating is
activated.
Fn (Fan): The humidifier can operate as long as the fan is running.
NOTE: The humidifier is disabled when cooling is activated.
Allows you to place the humidity adjustment to automatic mode.
On (automatic): The humidity level is automatically regulated by
the controller according to the outdoor temperature to avoid
condensation or ice formation on windows (see item 12).
OF (manual): The user manually sets the humidity level (see
item 12).
Set the desired humidity level. This parameter is available only
when the humidity control is placed in manual mode (see item
11) .
Allows the user to apply an offset to the automatic humidity con-
trol. For example, the user can enter a negative offset if there is
still ice formation or condensation on the windows. This parameter is available only when the humidity control is placed in
automatic mode (see item 11).
TH146-N-DE 400-280-000-G 9/22/06 4/8
Connection Diagram — New Installation
Dual Energy
TH146
AC144-03
16 - 22 AWG
16 - 22 AWG
16 - 22 AWG
AC146-410
CT280-HP-2H1C
CT241
Heat Pump
16 - 18 AWG
Compressor
Valve
Defrost
Fault
Auxiliary Heat
Fan
Humidifier
16 - 18 AWG
Red
Green
Yel lo w
16 - 22 AWG
16 - 22 AWG
TH146-N-DE 400-280-000-G 9/22/06 5/8
Connection Diagram — Add-on Installation
TH146
16 - 22 AWG
Dual Energy
24 V Transformer
16 - 22 AWG
AC144-03
16 - 18 AWG
16 - 22 AWG
AC146-410
CT280-HP-2H1C
16 - 18 AWG
Heat Pump
16 - 18 AWG
Compressor
Val ve
Defrost
Fault
16 - 22 AWG
16 - 18 AWG
Furnace
CT241
Red
Green
Yel lo w
16 - 22 AWG
16 - 22 AWG
TH146-N-DE 400-280-000-G 9/22/06 6/8
Humidifier
RC845
Auxiliary
Heating
System
Fan Limit
TH146-N-DE
User’s Guide
Non-programmable Heat Pump Controller
System fault
System operating
mode selection
Emergency heat
mode
Temperature adjustment
Dual-energy
mode
Fan operating
mode selection
5. Operation
System Operating Mode (Heating/Cooling)
5.1
Press MODE to place the controller in one of the following modes.
HEAT The system is in heating mode.
COOL The system is in cooling mode.
The system is in automatic changeover. (The system
AUTO
switches between heating mode and cooling mode to maintain the desired temperature.)
OFF Both heating or cooling are off.
The system is in emergency heat mode. Only auxiliary heat-
EHEAT
ing is used when there is a call for heat.
Fan Operating Mode (On/Auto)
5.2
Press the button to select the fan operating mode.
• In automatic mode, the fan runs only when heating or cooling is
activated.
• In continuous mode, the fan runs continuously and the symbol is displayed. NOTE: If the “smart fan” feature is enabled,
the fan will run only when heating or cooling will be activated
during unoccupied mode.
Indoor Humidity / Outdoor Temperature Display
5.3
Depending on how the controller has been configured (see page 4,
item 9), it displays either the measured indoor humidity level or the
measured outdoor temperature.
Outdoor
temperature
Indoor
humidity
Appears when the
temperature setpoint
is displayed
Auxiliary heat is On
Heating is On
Cooling is On
Fan is in continuous mode
Unoccupied
mode is On
Temperature Adjustment
5.4
The actual (measured) temperature is normally displayed. To view
the temperature setpoint, press one of the buttons once. The
setpoint is displayed for 5 seconds and is indicated by the sym-
bol.
To modify the temperature setpoint, press one of the buttons
until the desired temperature is displayed.
NOTE: If the controller is in automatic heat/cool changeover, the
setpoint is automatically reduced or raised by 1°C (2°F) when the
controller switches to heating mode or to cooling mode respectively.
For example, if you place the setpoint at 24°C (75°F) while in heating mode, the setpoint 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.
Humidity Adjustment
5.5
The humidity adjustment can be placed in manual mode or in automatic mode (see page 4, item 11).
Manual Adjustment
In manual mode, the user sets the humidity level (5% to 60%).
Automatic Adjustment
In automatic mode, 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.
Procedure
The procedure to set the humidity level (in manual mode) or the offset (in automatic mode) is as follows:
1) Press the Mode button for 3 seconds.
One of the following displays appears:
Humidifier
is On
Indoor temperature
Outdoor
temperature or
indoor humidity
System
operating mode
TH146-N-DE 400-280-000-G 9/22/06 7/8
Offset set
Humidity
level set
by user
2) Set the humidity level or offset using the buttons.
• humidity level: 5% to 60%
• offset: -9% to 9%
3) Press the button to exit.
The symbol is displayed when the humidifier is On.
Unoccupied Mode
5.6
The controller can be placed in unoccupied mode via a remote control device such as Aube’s CT241 telephone controller (see section
2.10). In this mode, the setpoint is set back by 4.5°C (8°F); it is lowered in heating mode or raised in cooling mode. The icon
appears during the unoccupied mode.
NOTE: Automatic changeover is disabled during the unoccupied
mode.
Temporary Bypass
5.7
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 icon
flashes during the bypass.
by user
Humidity level
set by controller
6. Technical Specifications
CT280-HP-2H1C Control Module
Power supply: 24 VAC
Current consumption: 150 mA
Maximum load per output: 1 A @ 24 VAC
Short cycle protection: 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: 76 mm x 109 mm x 25 mm (3 in. x 4.3 in. x 1 in.)
TH146 Console
Temperature setpoint range: 5°C to 30°C (40°F to 86°F)
Humidity setpoint range: 5% to 60%
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
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 mm x 79 mm x 24 mm (3.1 in. x 3.1 in. x 1 in.)
7. Warranty
Aube 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, Aube shall repair or
replace it (at Aube's option).
If the product is defective,
(i) return it, with a bill of sale or other dated proof of purchase, to
the place from which you purchased it, or
(ii) contact Aube. Aube 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 Aube that the defect or
malfunction was caused by damage which occurred while the
product was in the possession of a consumer.
Aube's sole responsibility shall be to repair or replace the product
within the terms stated above. AUBE 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 AUBE
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.
This warranty gives you specific legal rights, and you may have
other rights which vary by province, state or region.
8. Support
If you have any questions about the product installation or
operation, or concerning the warranty, contact us at the address
shown below.
705 Montrichard
Saint-Jean-sur-Richelieu, Quebec
J2X 5K8
Canada
Tel: (450) 358-4600
Toll-free: 1-800-831-AUBE
Fax: (450) 358-4650
Email: aube.service@honeywell.com
For more information on our products, visit us at:
www.aubetech.com
10, rue Ampère
95500 Gonesse
France
Tel: 33 (0) 1 34 07 99 00
Fax: 33 (0) 1 34 07 99 19
Email: advaube@comintes.com
TH146-N-DE 400-280-000-G 9/22/06 8/8
Loading...