THM701 7 Day Programmable Thermostat TOUCHSCREEN TECHNOLOGY E L I T E
Features: Interface s with hea ting/air co nditioning system s for autom atic temperature con trol Automatic cha nge-ov er for HEATING/COOLING prog rams Interface s with hum idifier for autom atic hum idity con trol Sets and displays hou se temperature (°C / °F) Touchscre en LCD display with bac klight Displays day, hou r and minute (in 12 or 24 hou r clock format) Temperature can be set in half d egrees Copy 1 day ’s prog ram to ano ther day Automatic ventil ation Selec table cycle rates for furna ce ON/OF
Table of Contents Operation and programming guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Full Display Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Symbol Key . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Set ºC or ºF . . . . . .
Operation and Programming Guide 1
Full Display - (includes all icons - for reference only) LOCK TABS STATUS SYMBOLS PROGRAM PERIOD SYSTEM MODE WEEKDAYS FAN MODE TIME HUMIDITY 2 UP OR DOWN
Symbol Key: These symbols appear to indicate the following: COOLING - the air conditioning system is in use. HEATING - the furnace or heating system is in use. FAN - the fan is running (FAN symbol will flash). HUMIDITY - the humidifier is in use. FILTER CHANGE - the furnace filter should be changed. BATTERY - the batteries are low and need to be replaced. LOCK - the thermostat settings are locked and setting cannot be changed.
** IMPORTANT - Getting Started ** CELSIUS DEFAULT: Since Celsius (°C) is the default mode no action is required to use the thermostat in this mode. (°C or °F) It is VERY IMPORTANT that you choose Fahrenheit (°F) before you begin using the thermostat. If you proceed to set the clock and program settings with the default Celsius(°C)and THEN change to the Fahrenheit (°F) setting; the clock, programs and all system settings will be deleted.
SET CLOCK SET WEEKDAY Choose 12 or 24 hour clock 1 Press the OPTION tab for 3 seconds. 2 Select Option oP1 with the (left)arrows 3 Choose value with the(right) arrows: 0=12 hour mode (Default) 1=24 hour mode 4 Press OK to exit (*SEE OPTION Section for more details, and to select Daylight Savings Time) Set Time and Weekday 1 Press the Clock area for 3 seconds. (The clock numbers will begin to flash) SET TIME 2 Set the time with UP or DOWN arrows. (Scroll to current hour and minute.
Program Heating and Cooling This thermostat is equipped with 7 DAY PROGRAMMING. Monday + Tuesday + Wednesday + Thursday + Friday + Saturday + Sunday programming with 4 settings per day. This thermostat is pre-programmed for your convenience or you can set your own programs as desired. P1: MORNING : This is typically for the morning when you may prefer a warmer temperature. : This is an energy-savings mode for the time you are away from home.
PROGRAM Display 1) Select the PROGRAM tab to enter the program mode. 5)Select COPY , then other weekday(s) to copy PROGRAM 1-4 settings 3)Select PROGRAM PERIOD P1 - Morning P2 - Day P3 - Evening P4 - Night 2)Select any WEEKDAY , the selected day will be underlined TIME 4)Use the UP 7 or DOWN arrows to set the start time and temperature for each program period.
Heating / Cooling Program 1 Select PROGRAM tab to display program settings.
Humidifier Control 1 2 3 4 Verify the humidifier is correctly wired to the thermostat. (see installation guide or contact an electrician) Ensure HEAT mode is selected. Touch the HUMIDITY display area, and then set the humidity level using the UP / DOWN arrow keys. To de-activate the humidifier setting, scroll DOWN to it’s lowest setting until “OFF” (oF%) displays. The humidifier will automatically turn on if the relative humidity is lower than the set humidity level. Humidity is set in increments of 5%.
Fan Control / Automatic Ventilation Select FAN/AUTO (for automatic control of the fan) In heating mode, the fan is controlled by the heating equipment. In cooling mode, the fan is controlled by the cooling equipment. Select FAN/ON (for the fan to run continuously) Select FAN/VENT (for automatic ventilation). (The fan will run five minutes per hour, this ventilation feature is designed for better air flow, without heating or cooling being applied.) Note: When the fan is running, the FAN symbol will flash.
Temporary OVERRIDE This function will maintain a constant temperature until the next program period starts. If the system is in AUTO mode, only the currently active mode (heat or cool) setting will be changed. 1 On the MAIN tab press the UP / DOWN arrows beside the preset temperature to override the temperature. (*The OVERRIDE tab will display to indicate the OVERRIDE function is active.) (*The new temperature will then remain the same until the next program starts.
HOLD Function This function will maintain a constant temperature indefinitely. 1 Select the HOLD tab (The HOLD symbol will flash to indicate HOLD is activated) 2 Press the UP / DOWN arrows beside the preset temperature to change the temperature. *(The new temperature will then remain the same indefinitely until you select CANCEL) HOLD UNTIL (Day) If you wish to select a specific day to turn the HOLD feature off (rather than having it lasting indefinitely) you may select the HOLD UNTIL day feature.
Pre-comfort Recovery This thermostat is equipped with a ‘Pre-comfort Recovery’ system that will activate the heating or cooling in advance of the actual set program time so that the room will be at the desired temperature at the start of the program time. It is normal for the system to be activated earlier than the actual set program time (up to one hour). The Pre-comfort Recovery can be disabled if desired.
Changing Batteries When the battery symbol is visible on the LCD screen, it indicates that the batteries are running low and need to be replaced. However, it is recommended that the batteries be replaced every year, even if the battery symbol does not appear. To replace batteries: Select OFF to turn the thermostat to the OFF mode. Remove the thermostat from its mounting plate (back cover) carefully. Remove the old batteries and install new ones very quickly. Replace the thermostat to its original position.
Memory backup for the Programs and Thermostat Settings The thermostat has built-in permanent memory which stores all the set programs and thermostat settings if ever the batteries go completely dead or if the batteries are removed from the thermostat for an extended period of time. When the batteries are re-inserted, the thermostat will recall and resume with all the stored programs and settings. However, the clock itself will have to be reset.
OPTION SETTINGS (Select the OPTION tab and hold for 3 seconds) OPTION NUMBER VALUE The thermostat has a number of OPTIONS which the user can change. (NOTE: *Adjust these settings before programming the thermostat, because changing certain options will erase all programming.) There are ten OPTION NUMBERS (oP0 to 0P9). Press the UP or Down arrows to select the OPTION and the VALUE. The variable settings are explained in the next few pages.
Optional Settings (Select the OPTION tab and hold for 3 seconds) 1) (oP0) - Daylight Savings Time 2) (oP1) - Clock Format 12 or 24 hour 3) (oP2) - LCD Backlight 4) (oP3) - Key Click / Freeze Warning 5) (oP4) - Pre-comfort Recovery 6) (oP5) - Heat Cycle Rate 7) (oP6) - HE/HG Fan Mode Selection (heating) 8) (oP7) - Filter Change Reminder 9) (oP8) - System Type 10) (oP9) - °C or °F Display 1) (oP0) - Daylight Savings Time Daylight savings time “ON” will advance your clock by one hour.
3) (oP2) - LCD Backlight Select the amount of time the LCD light will stay on after a key is selected Value 0= OFF (Backlight is always off) Value 1= 2 Seconds (Backlight stays on for 2 seconds after a key is pressed) (Default) Value 2= 8 Seconds (Backlight stays on for 8 seconds after a key is pressed) 4) (oP3) - Key Click / Freeze Warning Choose whether or not a key click sound is audible when you press the LCD screen. Choose whether or not a warning sounds if your ever home reaches freezing temperatures.
6) (oP5) - Heat Cycle Rate Choose the furnace heat cycle (the total ON/OFF intervals that the furnace completes in one hour) Value 0= OFF (Cycle rate disabled - fixed span) Value 1= 3 cycles / hour Value 2= 4 cycles / hour (Default) Value 3= 6 cycles / hour Value 4= 8 cycles / hour 7) (oP5) - HE/HG Fan Mode Selection Depending on your home’s heating system, you may need to change the HE/HG setting for the fan operation. Value 0=HG Mode (Use this setting for gas or oil-fired furnaces.
8) (oP7) - Filter Change Reminder Choose how many hours the furnace will be in use before filter change indicator will display. Value 0= Disabled (Filter change icon will never display) Value 1= 500 hours Value 2= 1000 hours (Default) Value 3= 2000 Hours Value 4= 4000 Hours 9) (oP8) - System Type (Conventional Furnace) Depending on your home’s heating system, you may need to choose between a conventional furnace system or an alternative system.
Installation Guide 21
Installation Guide Introduction This thermostat can replace common residential thermostats and it is designed for use with most central heating and air conditioning systems that use low voltage control. Please see compatibility chart on the next page for more details. 3 “AA” size batteries required (included) Built-in protection timing for the air conditioner compressor Warning We recommend consulting a licenced electrician to ensure the safe installation of your thermostat.
Compatibility Generally, equipment with low voltage control is compatible with Heating/Cooling Programmable Thermostats.
Installation The following tools may be required for installation: ( Power drill with a 3/16” bit ) Screwdriver ( If necessary, to drill holes on the wall ) Masking Tape (To wrap the exposed wires temporarily and to label the disconnected wires) Wire Stripper/Cutter Level (If necessary, to level the thermostat) 3 “AA” size batteries (included) (If necessary, to strip the wires) - “AA” SIZE + - “AA” SIZE + - “AA” SIZE + 24
Choosing a Location for the new Thermostat Thermostat should be mounted: Approximately 5’ (1.5 m) from floor. Near or in a frequently used room, preferably on an inside partitioning wall. On a section of wall without pipes or duct-work. Thermostat should NOT be mounted: Near a window, on an outside wall, or next to a door leading outside. Exposed to direct light or heat from a lamp, sun, fireplace, or other temperature-radiating objects which may cause false readings.
Replacing the Old Thermostat Test the system to make sure that your heating and cooling systems are working properly before installation. If either does not work, contact a heating/air conditioning service person to fix the problem before installation. TURN OFF POWER to system at the furnace, or at the fuse/circuit breaker panel. Carefully unpack your new thermostat and mounting plate; save package of screws, instructions and receipt. Remove cover from old thermostat.
** IMPORTANT - Getting Started ** Remove the thermostat backplate and install 3 “AA” size batteries (included). Ensure the batteries are installed in the correct direction.
Installing the Batteries and Selecting the Display in °C or °F Please consult page 27 for guidelines on how it install the 3 “AA” size batteries (included) into the thermostat following the polarity as marked. The LCD screen will immediately show the room temperature. Please consult page 4 for instructions on how to select °C or °F. CELSIUS DEFAULT: Since Celsius (°C) is the default mode no action is required to use the thermostat in this mode.
Wiring Diagrams Wiring Key 2-WIRE HEATING G Y H2 H1 Regular Wiring G - Fan output Y - Cool output H1 / H2 - Humidifier control Rc - Common for Cooling and Fan Rh - Common for Heating W - Heat output (OPTIONAL) JUMPER Rc Rh W/ B/O 3-WIRE HEATING G Y 2 Wire Heating Rc / Rh - Common (Rc and Rh jumper is optional) H2 H1 Rc Rh 3 Wire Heating Rc / Rh - Common (Rc and Rh must be connected with jumper) W/ B/O 29
Wiring Diagrams Wiring Key 4-WIRE HEATING/COOLING G Y Regular Wiring G - Fan output Y - Cool output H1 / H2 - Humidifier control Rc - Common for Cooling and Fan Rh - Common for Heating W - Heat output H2 H1 Rc Rh W/ B/O 5-WIRE HEATING/COOLING G Y 4 Wire Heating Rc / Rh - Common (Rc and Rh must be connected with jumper) H2 H1 Rc Rh W/ B/O 30 5 Wire Heating 2 separate transformers (Heat / Cool) Rc / Rh - Common (wire separately, jumper must not be installed)
Humidifier Wiring To wire a humidifier, the 2 wires connecting the original humidistat need to be connected to the 2 terminals marked 'H1' and 'H2' on the thermostat. The original humidistat should be removed or set to 'OFF' position. Note: The 2 humidifier control terminals 'H1' and 'H2' are electrically isolated from the Heat/Cool terminals. Note: H1 and H2 terminals are non polarized and there is no function difference between H1 and H2.
Connecting the Wires to the Terminals Wall Connect the previously labeled wires to the corresponding terminals, matching the designations. Use a screwdriver to loosen the terminal, wrap the wires around the terminal then tighten to securely fasten the wires. Make sure the wires do not touch or short-circuit with other terminals. Through Hole Back cover Wall Depending on your heating/cooling equipment, you may need to connect between 2 to 7 wires to the thermostat.
Mounting the Back Cover of the Thermostat The back cover should be mounted horizontally with the terminals on the top. Thread the existing wiring through the big center hole from the back and set the back cover horizontally on the wall. Select two appropriate mounting holes and mark the locations with a pencil. If necessary, use a level to make sure the thermostat is leveled. Remove the back cover from the wall and drill two 3/16” holes in the marked screw positions.
Specifications: Number of programs: 7 Day with 4 settings per day Temperature setting range: 5 – 35°C (41 – 95°F) Temperature display range: 0 – 50°C (32 – 122°F) Humidity setting range: 20 to 70% Humidity display range: 20 to 95% Battery: 3 x “AA” size batteries TROUBLESHOOTING GUIDE PROBLEM SOLUTION LCD screen is blank. - Check if the batteries are installed correctly. - Check if the batteries are fresh and of the correct type. - Select RESET button on the back of the unit.
PROBLEM SOLUTION Heat will not come on but the symbol is animated. 1) Check if the furnace switch and/or pilot flame is turned on, as it may have been turned off. 2) Allow several minutes for the heating system to heat up and the fan to activate. Most heaters will heat up the system for a short while before warm air can be ventilated by the fan. Also check that the HE/HG setting is set correctly. (see optional settings) 3) If the heat still does not come on, check the wiring installation again.
PROBLEM SOLUTION Thermostat is set on AUTO mode, but the thermostat does not seem to automatically change-over from HEAT to COOL or vice-versa. The thermostat has a built-in safeguard time delay of 30 minutes to prevent undesirable change-over sequences from HEAT to COOL or COOL to HEAT. For example, if the thermostat was just running the cooling system, it will take at least 30 minutes before it changes to heating.
Limited 5-year Repair Warranty This product carries a five (5) year repair warranty against defects in workmanship and materials. This product is not guaranteed against wear or breakage due to misuse and/or abuse. If the product is defective, return it, with a dated proof of purchase, to the retailer from which you purchased it Attention: IT IS STRONGLY RECOMMENDED TO HAVE A CERTIFIED ELECTRICIAN ON SITE TO ENSURE THE SAFE INSTALLATION OF YOUR THERMOSTAT.
