Aube Technologies TH141A-HC-28 User manual

INSTRUCTION MANUAL
Programmable Electronic Thermostat
MODEL TH141A-HC-28
We thank you for trusting Aube technologies and hope that you will be
entirely satisfied.
For any questions concerning the TH141A-HC-28 progammable
electronicthermostat,pleasecallourTechnicalSupportDepartmentat:
1-800-831-AUBE (2823)
Montreal Area : [phone]
TABLE OF CONTENTS
1. INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.1 Remove the Old Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.2 Install the New Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
1.3 Install and Connect the Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
1.4 Identify the Wires . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.5 Connect the Labelled Wires to the Thermostat . . . . . . . . . . . . . . . . . . . . 4
1.6 Wiring Diagrams. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6.1 2- Wire Heating System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.6.2 3- Wire Heating System with Fan Control. . . . . . . . . . . . . . . . . 5
1.6.3 3- Wire Air Conditioning System with Fan Control . . . . . . . . . . 5
1.6.4 4- Wire Heating and Air Conditioning System . . . . . . . . . . . . . 5
1.6.5 5- Wire Heating and Air Conditioning System . . . . . . . . . . . . . 6
1.7 Thermostat Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
a) 24 hrs. or 12 hrs. Display. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
b) Temperature in °C or °F. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
c) Regulation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1 - Proportional Adaptive . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Regulation cycles . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2 - Conventional with anticipation . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Programmable Span. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
d) Heating Fan Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
1.8 Battery Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2. ENTRY OF BASIC DATA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.1 Programming the Time and Day . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2.2 Programming the Comfort, Economic and Vacation Settings. . . . . . . . . 13
2.3 Programming the Air Conditioning Settings . . . . . . . . . . . . . . . . . . . . . . 14
3. OPERATING MODE. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.1 Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2 Automatic . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3.2.1 Schedule Programming . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
a) To Program your Schedule . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

b) To Erase a Program. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
c) Example 1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
d) Example 2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
3.2.2 Temporary or Permanent Temperature Bypass. . . . . . . . . . . . . . . . . . . 19
4. SELECT THE HEATING,AIR CONDITIONING,OR MIXED MODE. . . . . . . . . . . . 20
5. FAN CONTROL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6. TELEPHONE CONTROLLER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
6.1 Connection to the CT240 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
6.2 Connection to a House Automation System . . . . . . . . . . . . . . . . . . . . . . 22
6.3 Operating of the Telephone Interface. . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
7. BATTERY REPLACEMENT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
8. TECHNICAL SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
WARRANTY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
1. INSTALLATION
1.1 REMOVE THE OLD THERMOSTAT
1 - Cut the power source to your heating or air conditioning system.
2 - Remove the cover of the old thermostat.
Caution: If, upon removing the wall plate, you see that it is mounted on a junction
box (similar to the junction box located behind an electrical switch or outlet), this may
indicate that it is a 120 V/240 V system. For more security, consult a qualified
electrician to check the installation.
1.2 INSTALL THE NEW THERMOSTAT
For a new installation, choose a location about 1.5 meters (5 feet) above the floor,
with good air circulation. The thermostat must be installed on an inside wall.
Avoid locations where there are:
a) air drafts (top of a staircase, air outlet,...)
b) dead air spots (behind a door,...)
c) direct sunlight
d) concealed chimneys or stove pipes.
1
1.3 INSTALL AND CONNECT THE THERMOSTAT
1. Remove the screw holding the thermostat mounting plate.
2. Lift the lower part to separate the plate from the thermostat.
3. Mount the plate on the wall using the screws supplied.
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1.4 IDENTIFY THE WIRES
1. If the wall plate of your old thermostat has more than two wires coming out of the
wall, you will need to label the wires. Start by identifying the letters close to each
screw or terminal on which a wire is connected. These terminals may be located
on either side of the plate.
2. Disconnect and identify each wire*.
3. You may need to tape the wires to the wall to keep them from falling back into it.
If the wall cavity is larger than necessary, fill it with insulating wool in order to
prevent the infiltration of warm or cold air behind the thermostat.
*If your installation is recent, the colour of the wires should match the identification on the
mounting plate.
(Rh) Red Heating power source
(W) White Heating relay
(Rc) Blue Air conditioning power supply
(Y) Yellow Air conditioning relay
(G) Green Fan relay

1.5 CONNECT THE LABELLED WIRES TO THE THERMOSTAT
1. Connect the system wires to the thermostat terminals according to the wiring
diagram shown in section 1.6.
2. Make sure that the wires are pushed well back into the wall.
3. If you own a CT240 telephone controller, refer to section 6.1 for connection.
1.6 WIRING DIAGRAMS
TheTH141thermostatiscompatiblewithmostheatingandair conditioning systems.
Multi-levelheatingandair conditioning systems, Milivoltcontrolheatingsystems, heat
pumpsandbaseboardheating units are notcompatiblewiththis thermostat. Baseboard
units can be connected using a 24 V relay.
1.6.1 2-WIRE HEATING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the 24 V transformer to terminal Rh.
In this case, the order of connection is unimportant.
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1.6.2 3-WIRE HEATING SYSTEM WITH FAN CONTROL
1. Connect the heating relay to terminal W.
2. Connect the fan relay to terminal G.
3. Connect the 24 V transformer to terminal Rh.
4. Connect a wire between terminals Rh and Rc.
1.6.3 3-WIRE AIR CONDITIONING SYSTEM WITH FAN CONTROL
1. Connect the air conditioning relay to terminal Y.
2. Connect the fan relay to terminal G.
3. Connect the 24 V transformer to terminal Rc.
1.6.4 4-WIRE HEATING AND AIR CONDITIONING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the air-conditioning relay to terminal Y.
3. Connect the fan relay to terminal G.
4. Connect the 24 V transformer to terminal Rh.
5. Connect a wire between terminals Rh and Rc.
5
1.6.5 5-WIRE HEATING AND AIR-CONDITIONING SYSTEM
1. Connect the heating relay to terminal W.
2. Connect the air-conditioning relay to terminal Y.
3. Connect the fan relay to terminal G.
4. Connect the 24 V transformer to terminal Rh.
5. Connect the 24 V air conditioning transformer to
terminal Rc.
1.7 THERMOSTAT CONFIGURATION
Before mounting the thermostat on the wall, configure it
using the switch bank on the back side of the unit.
a) 24 hrs. or 12 hrs. Display
The TH141 offers a 12 hrs. or 24 hrs. mode display. Default configura-
tion of the display is in the 24 hrs. mode. If you prefer a 12 hrs. display,
push #3 switch up.
6
b) Temperature in °C or °F
Default configuration of the TH141 is in °C. If you wish to change the
temperature to °F, push #4 switch up. Please note that if you changefrom
°F to °C, your comfort and economy settings will need to be
reconfigured as well.
c) Regulation Modes
You have a choice between two regulation modes:
1. Proportional adaptive mode
This mode analyses previous cycles in order to define the length of the up
coming cycle. This operating mode guarantees optimal regulation based on
the capacity of your system. To avoid cycles that are too short for the heating
or air-conditioning units, minimum On and Off duration is limited to 10% of the
period (1.5 minutes for a 15 minute cycle). 7
• Proportional adaptive
• Conventional with anticipation
If you want the proportional adaptive mode, push #5 switch up.

Ideal for:
• Radiant or convection electrical heating system
• Circulator control in a hot water system
• Electrical hot air furnace
• Hot air, gas or fuel conventional furnace
• Air-conditioning system
Not recommended for:
• Gas or fuel furnace or boiler with wall chimney, if they include a combustion gas
purging cycle exceeding 30 seconds. To verify this point, check the duration of the
delaybetweenthe heating command sentbythethermostat and themomentwhen
the burner actually goes on.
• Multi-zone systems, where several thermostats command a single heating or air-
conditioning unit.
In the last two cases, the conventional mode is recommended.
8
Regulation Cycles
In proportional adaptive mode, the TH141 adapts the regulation cycles to your sys-
tem capacity. When cycles are very short, the temperature variation in the room is
verylowandthe comfort level veryhigh.However, very shortcyclescangenerate pre-
mature wear of your system.
It is therefore important to adjust the cycles to your type of installation.
In general, the bigger your heating or air-conditioning unit, the longer the cycles
should be. The TH141 offers the possibility of programming regulation periods of 5,
10, 15 or 20 minutes using switches 1 and 2 at the back of the unit.
We recommend the following options:
• 5 minute cycle Not recommended for central units
• 10 minute cycle for Radiant or convection electric heating
• 15 minute cycle for Central heating and
air-conditioning unit
• 20 minute cycle for Commercial unit 9
2.Conventional mode with anticipation
If you want the conventional mode with anticipation, push #5 switch down.
This mode commands the system's On and Off cycles when the temperature read
by the thermostat reaches pre-set levels. This mode is compatible with all heating or
air-conditioning systems.
Programmable Span
When the thermostat is in conventional mode with anticipation, it is possible to pro-
gram a span, that is temperature variations between ON and OFF orders of your sys-
tem.Thesevariationsareprogrammable between 0.3 and 0.6°C(0.5and1.1 °F) and
they correspond to the following positions of switches #1 and #2:
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0.3 °C/0.5 °F
0.4 °C/0.7 °F
0.5 °C/0.9 °F
0.6 °C/1.1 °F
We recommend the following options:
* 240 volt heating with relay (baseboard, convector, radiant ceiling, etc.)
d) Heating Fan Control
This function determines whether the heating system fan is opera-
ted by the thermostat or by the plenum's temperature of the heating
unit. In general, the fan is operated by the heating unit. However, if
thefandoesnot turn onandthethermostat requires heatingformore
than one minute, push #6 switch up.
VARIATIONS HOT-WATER HEATING HEATING AND AIR-CONDITIONING
0.3 °C/ 0.5 °F Not recommended Not recommended
for furnaces for central units
0.4 °C/ 0.7 °F Gas or electric Radiant or convection
wall furnace electric heating *
0.5 °C/ 0.9 °F Fuel or gas Central heating or
floor furnace air-conditioning unit
0.6 °C/ 1.1 °F Commercial unit Commercial unit
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1.8 BATTERY INSTALLATION
Whenyoufirstinstall the batteries intheTH141,theunit runs a sequence
of tests and a complete reset to zero, which last approximately 5
seconds. The screen should display the time and the day, as well as
the current temperature as follows:
It is normal for the displayed temperature to be higher than the room
temperature if your are holding the TH141 in your hands, It will return
to normal about one hour after installation on the wall.
Mount the thermostat on the wall plate and screw it in place.
Even if the thermostat indicates that the batteries are good, it is recommended
to replace them once a year, at the beginning of the cold season.
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2. ENTRY OF BASIC DATA
You may program the thermostat while holding it in your hands or once it is mounted
on the wall.
2.1 PROGRAMMING THE TIME AND DAY
1. Set the time using the Hour and Minute buttons.
2. Set the date using the Day button.
2.2 PROGRAMMING THE COMFORT,ECONOMIC AND VACATION SETTINGS
The Comfort , Economic and Vacation settings respectively represent the
temperatures that you wish to have during the day , at night or while you are
away at work , or while you are away for an extended period . Since your
thermostat controls both heating and air-conditioning, and since the economic
settings are the opposite in both cases (reduction for heating temperature, increase
for air-conditioning), you must program the settings for heating and then for
air-conditioning.
13
1. To program your heating settings
a) Set your thermostat to the heating mode using the Heat/Cool button.
b) To program the Comfort temperature, select the desired degree using the
buttons and press the button until the icon is displayed (app. 3 seconds).
c) To program the Economic temperature, select the desired degree using the
buttons and press the button until the the icon is displayed
(app. 3 seconds).
d)To program the Vacation temperature, select the desired degree using the
buttons and press on the button until the icon is displayed (app.
3 seconds). This setting is used by the telephone remote control.
e) Press the Manual/Auto button to exit this function and return to the normal
operating mode.
2.3 PROGRAM THE AIR-CONDITIONING SETTINGS
Set your thermostat to the air-conditioning mode using the Heat/Cool button and
repeat operations b) to e).
14
3. OPERATING MODES
The TH141 offers two operating modes.
3.1 MANUAL ( )
This mode allows you to maintain a constant temperature in the house.
1. To activate this mode, press the Manual/Auto button to display the icon.
2. Setthedesiredtemperature using the buttonsorselectthe pre-programmed
, or settings.
3.2 AUTOMATIC ( )
This mode executes your own programming. To activate this mode, press the
Manual/Auto button to display the icon. The or icon indicates that the pro-
gram setting is active.
3.2.1 SCHEDULE PROGRAMMING
The TH141 allows 4 setting changes for each day of the week. There are no pre-set
programs. The programs are tailored to perfectly adapt to your life style.
The principle is very simple. For each day, enter the time at which you wake up (P1),
the time you leave for work (P2), the time you arrive back home (P3) and the time you
go to bed (P4). 15

Note: Fortemperature increases(Prog. 1and3), allowat least15 minutesper°C. Ifyou have
lowered the temperature by 3 °C during the night and you wake up at 7 AM, change
the setting at 6:15 AM.
For savings to be obtained, you must lower the temperature for a period of 2 to 3
times the delay required to bring the temperature back to your comfort level.
Example: If your system takes one hour to go from your saving temperature level to
your comfort temperature level, it is useless to lower the temperature for a period of 2
to 3 hours.
a) To Program your Schedule
1. Press the Program button to access the programming mode.
2. Press the Day button to select the day to be programmed. You can select
all days of the week by pressing on the Day button for 3 seconds.
16
Program Mode Time
1 Wake-up time
2 Leaving time
3 Return time
4 Bed time
3. Press the Program button to select program 1, 2, 3 or 4.
4. Press the Hour and Minute buttons to program the time.
5. When you have completed your programming, press the Manual/Auto button
to exit this function.
b) To Erase a Program
Select the program using the Program and Day buttons, and press the Clear button.
The time zone displays --:-- when the program is inactive.
c) Example 1: Comfort period from 7:00 AM to 10:30 PM
Economy period from 10:30 PM to 7:00 AM
Identical schedule for all days of the week.
1. Press the Program button to access the programming mode.
2. Press the Day button (3 seconds) to select every day of the week.
3. Press the Hour button to enter 7:00 AM, Prog. 1 .
4. Press the Program button again to select Prog. 2 , and press the Hour and
Minute buttons to enter 10:30 PM. 17
5. Press the Manual/Auto button to exit this function.
d) Example 2: Comfortperiod:Monday to Fridayfrom6:15AM to 8:15AMand
from 5:00 PM to 10:00 PM.
Note: It is faster to program the same schedule for every day and then modify the exception days.
1. Press the Program button to access the programming mode.
2. Press the Day button (3 seconds) to select every day of the week.
3. Press the Hour and Minute buttons to enter 6:15 AM (Prog. 1 ).
4. Press the Program button to select Prog. 2 and the Hour and Minute buttons to
enter 8:15 AM.
5. Repeat step 4 to enter Prog. 3 (5:00 PM) and Prog. 4 (10:00 PM).
Note: When making modifications, make sure that you are in the right program.
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Shedule/Day Mon. Tues. Wed. Thu. Fri. Sat. Sun.
PROG. 1 6h15 AM 6h15 AM 6h15 AM 6h15 AM 6h15 AM 7h30 AM 7h30 AM
PROG. 2 8h15 AM 8h15 AM 8h15 AM 8h15 AM 8h15 AM ---- ----
PROG. 3 5h00 PM 5h00 PM 5h00 PM 5h00 PM 5h00 PM ---- ----
PROG. 4 10h00 PM 10h00 PM 10h00PM 10h00 PM 10h00 PM 11h00 PM 11h00 PM
To modify the Saturday and Sunday schedules:
6. Press the Day button until SA or SU is displayed.
7. Press the Program button to select Prog. 1 and the Hour and Minute buttons to
enter 7:30 AM.
8. Press the Program button to select Prog. 2 and than press the Clear button to
erase it.
9. Press the Program button to select Prog. 3 and then the Clear button to erase it.
10.Press the Program button to select Prog. 4 and then the Hour and Minute
buttons to enter 11:00 PM.
11.Press the Manual/Auto button to exit this function.
3.2.2 TEMPORARY OR PERMANENT TEMPERATURE BYPASS
This operation allows you to temporarily modify the room temperature while you are
in the automatic mode. Simply press the buttons to select the desired tempe-
rature, or the or button to select the Comfort or Econo settings you have pro-
grammed.This temperature will be maintained until the beginning of the next
programmed schedule.
19

You can also switch to the Vacation setting for a prolonged absence by pressing the
button. In that case, the derogation is permanent. To return to the normal oper-
ating mode, press the Manual/Auto button. If you wish to immediately return to the
programmed settings, press the Manual/Auto button twice.
4. SELECT THE HEATING, AIR CONDITIONING, OR MIXED MODE
Use the Heat/Cool button to select one of the following modes:
Heating: Controls the heating unit according to the displayed setting.
Air-conditioning: Controls the air-conditioning unit according to the displayed
setting.
Mixed: The TH141 analyzes the temperature pattern and automati-
cally alternates from the comfort mode to the air-conditioning
mode.
To avoid needless switching, the automatic mode change will take at least 2 minutes
if it is required by a manual setting change and at least 15 minutes if it is due to a
quick temperature change.
Furthermore, to protect your heating and air-conditioning system, it is impossible to
shut down and restart the system within a period equal to 10% of the cycle.
20
5. FAN CONTROL
Use the Fan ON/OFF button to force continuous air circulation (icon ON) or to
synchronize the fan with the heating or air-conditioning demand (icon ON).
PleasenotethatifyousettheTH141inVacation modeusingthetelephonecontroller
orahouseautomation system, the continuousaircirculationwillbe automatically deac-
tivated during your absence.
6. TELEPHONE CONTROLLER ( )
The TH141 incorporates a telephone controller interface which allows you to switch
from the normal operating mode to the Vacation setting ( ), and vice versa, using
the telephone keypad (stationary or portable). You can, for example, heat your
country house from your office on Friday, or your house from the airport or from your
car on your way back from vacation.
21
6.1 CONNECTION TO THE CT240
TheTH141isdesigned to connect directlytotheCT240
telephone controller. This combination allows the
activation and deactivation of the Vacation mode from
the CT240 or the telephone.
Connect the CT240’s terminals A and C to the
TH141's terminals X and C respectively. You must respect the polarity.
For details on operating the telephone controller, refer
to the CT240’s Instruction Manual.
6.2 CONNECTION TO A HOUSE AUTOMATION SYSTEM
TheVacationsettingcanalsobeactivated from ahouse
automation system.
22
AC
X
c
6.3 OPERATING THE TELEPHONE INTERFACE
You can activate the Vacation setting using the Vacation button of the telephone
controller or using the telephone itself.
1 - To activate the Vacation setting, press the Vacation button of the CT240. The
Vacation setting will be displayed during 5 seconds and the icon will flash
on the screen. You no longer have access to the TH141 keypad if this function is
activated by the telephone controller.
2 - To deactivate the function and return to the previous mode, press the Vacation
button of the telephone controller again. The red light will go off and the
icon will disappear within a maximum of 5 seconds.
To modify the Vacation setting, refer to section 2.2.
23

7. BATTERY REPLACEMENT
The TH141 will display an icon indicating that the
batteries must be replaced. This icon will flash for
60 days. After this delay, the thermostat will shut
down your heating unit. During battery replace-
ment, the data is kept for of 15 seconds. The time
and the programs will not be lost.
After this delay, the TH141 runs a sequence of
tests and a complete reset to zero as for the initial
installation of the batteries.
Even if the thermostat indicates that the batteries are good, it is recommended
to replace them once a year.
24
8. TECHNICAL SPECIFICATIONS
Model: TH141A-HC-28
Power supply: 2 AA size alkaline batteries
Connection: 2, 3, 4 or 5 wires
Maximum charge: 1.5 A/30 VAC per output
Auxiliary input: 12 Vdc ± 10%, 2.3 mA
Number of programs: 4 prog./day, 28 programs total
Heating setting range: 5 °C to 30 °C
(40 °F to 85 °F)
Air-conditioning setting range: 16 °C to 40 °C
(60 °F to 105 °F)
Anticipation: Electronic anticipation independent from the
charge.
Regulation: Proportional or conventional
Regulation periods: 5, 10, 15 or 20 minutes
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WARRANTY
This product is guaranteed against workmanship defects for a two-year period
following the initial date of purchase in an authorized retail store. During this period,
AUBE technologies inc. will repair or replace, at its option and without charge, any
defective product which has been used under normal conditions.
The warranty does not cover delivery costs and does not apply to products badly
installed or damaged by accident.
This warranty cancels and replaces any other manufacturer's express or tacit
warranty as well as any other company commitment. AUBE technologies inc. cannot
be held liable for related or random damages following the installation of this
product.
The defective product as well as the purchase invoice must be returned to the place
of purchase or mailed, prepaid and insured, to the following address:
26
AUBE TECHNOLOGIES INC.
705 Montrichard 10 rue Ampère
Iberville (Quebec) 95500 Gonesse
Canada J2X 5K8 France
Tel. : [phone] (0) 1 34 07 99 00
1-800-831-AUBE (2823)
Fax : [phone] (0) 1 34 07 99 19
www.aubetech.com
[email protected]

25/10/02 920-141-000-00-1-A