VTRONIX TE80SB-501 Programmable Digital Thermostat INSTALLATION MANUAL

VTRONIX TE80SB-501 Programmable Digital Thermostat

APPLICATION

The TE80SB Thermostat provides universal replacement of single-stage, 24Vac (20 mA to 1.5A) thermostats used in electric, gas, and oil heating and cooling systems. This thermostat is mercury free and requires no  batteries. The thermostat also can be used to control single-stage heat pumps. The TE80SB uses advanced proportional plus integral (P+I) control for optimum temperature control and comfort.

Table 1. Description of Thermostat.

Model	Mounting	System Selection	Fan Selection	Powering Method	Backlight
TE80SB	VERTICAL	COOL-OFF-HEAT	ON-AUTO	Power Stealing	Backlight

FEATURES

• 7-Day programmable with 4 programs/day.
• Stylish design, replaces Honeywell T834C, White Rodgers 1E56 or Lux PSD150.
• LCD display with back lighting lit all the time.
• Power stealing for universal replacement. No common wire required. No batteries.
• Heat cycle rate can be selected (1,3,4,5,6,9,12) by software to suit many heating applications.
• Heating / cooling damper output to control either dampers or heat pump reversing valve.
• User options and set point are retained in the event of lost power.

SPECIFICATIONS

Table 2. Thermostat specifications.

Power Power Supply	24 Vac nominal, 18-30 Vac, 50/60 HZ.
Electrical Rating Heating rating Cooling rating Fan rating Note: The fan load plus the higher of the heating or cooling load must not exceed 1.5 Amp continuous	0.02 to 1.5 A continuous 0.02 to 1.5 A continuous 0.02 to 0.5 A continuous
TEMPERATURE RATINGS Temperature setting range Ambient temperature range Shipping temperature range	40 to 99 °F  (4 to 37 °C) 40 to 110 °F (4 to 43 °C) 14 to 140 °F (-10 to 60 °C)
OPERATING RELATIVE HUMIDITY	5 to 90% RH, non-condensing
CYCLE RATES Cooling mode Heating mode	4 Cycles Per Hour 1,3,4,5,6,9,12 Selectable Cycles Per Hour

DIMENSION

INSTALLATION

Read these instructions thoroughly before installing product. Failure to follow these instructions could damage the product or cause a hazardous condition. Check the voltage and current ratings on the product to ensure that it is suitable for your application. Installer must be a trained, experienced service technician. Check product for proper operation after installation.
CAUTION
Damage to heating and cooling system may occur. Disconnect power from the equipment at the main breaker/fuse block while installing the thermostat.
Mounting Location.
Mount the thermostat approximately 5 ft. (1.5m) above the floor in a location that is free from direct sunlight, heat from appliances, hot or cold air from ducts, concealed pipes and chimneys, and drafts or dead spots behind doors or in corners. Do not mount on exterior wall, if possible. Failure to locate thermostat mounting as indicated will result in poor temperature control.
NOTE: Level thermostat mounting is for appearance only and is not required for proper thermostat operation.
Mounting Thermostat
Take out the back plate by removing the locking screw (if any) at the bottom of the thermostat. Use a flat head screwdriver to unlock the snaps. Lift and pull it up to remove back plate. Using back plate as a guide, mark two mounti  holes on the wall. Drill two mounting holes. Place anchors (provided) into the holes until flush with the hole. Position back plate on the wall and thread the wires from the heating and cooling equipment through the wiring hole. Holding the back plate in place on the wall, secure it to the wall using mounting screws (provided).

Wiring
Pull the connector from the back of the thermostat by inserting screwdriver at the base of the connector and gently lift up.
Color-coded 18-22 gauge wire is recommended for wiring. All wiring must follow local electrical code located near each terminal.
Loosen the terminal screw, strip the wire and connect the wire as shown in fig 7. Firmly tighten the terminal screw when finished.

Set-up switch (E/F)

WARNING
Fire Hazard.
Failure to set the set-up switch to the E position when electric resistance heat is used may result in the overheating of the electric heater elements due to improper fan operation.
The set-up switch is an internal switch (E,F) located near the wiring terminals. It is used to select proper fan operation for the heating system being used.

• the E position is for electric heat and single stage heat pump applications.
• The F position is for fuel applications.

Place the terminal back to the thermostat, make sure it has the same orientation like in the picture described at the back. Snap the thermostat to its back plate.
Secure the thermostat by tightening the screw provided to protect the thermostat from unwanted access.

INSTALLER SETUP

The following instructions provide information to test the heating/cooling equipment and to change operating parameters from the factory settings.
Enter Installer Setup

1. Use or key to set the temperature set point to 52°F (or 11 °C).
2. Press orkey simultaneously to enter installer setup.

Now follow the following steps to change each of the settings. Each time you presskey, you will advance to the next operating parameter. To go back you must re-enter the installer set up as described above.

Testing Heating / Cooling Equipment. (OP:01)
While in the installer setup, slide the mode switch to heat to operate the heating equipment or cool to operate the cooling equipment. The display will show either 00 or 01 on the lower right area and either heat or cool as selected by the mode switch.

1. If the equipment is off, presskey to turn it on (if not, check the wiring or the equipment).
2. Presskey again to turn it off.

Setting °C / °F Indication. (OP:02)
While in the installer setup,

• Presskey, the display will show °F/°C indication.
• Presskey to change °F or °C indication.
• NOTE: Factory setting is °F indication.

Setting Heating Cycle Rate. (OP:03)
In cooling, the cycle rate is fixed at 4 Cycles per hour. To set the cycle rate in heating; while in installer setup,

• Press key, and the display will show the heat cycle rate.
• Press key to change the heat cycle rate to 1,3,4,5,6,9 or 12 cycles per hour.
  Note: The default is set at 6 cycle per hour. Table 4 is the recommended cycle rate. The installer should consult with the heating equipment manufacturer for proper use.

Table 4. Recommended cycle rate (CPH).

SYSTEM	CPH SETTING
Steam Gravity	1
Hydronic heat	3
Gas or Oil forced air	6
Electric heat	9

Note: If the equipment manufacturer recommends a different rate use the rate specified by the equipment manufacture.

Setting cooling algorithm. (OP:04)
The cooling algorithm can be selected as normal or aggressive. For aggressive, the system will cool down the room to setting point faster than normal algorithm. However, an overshoot might be occurred in some situations.

1. Press key to show the cooling algorithm.
2. Presskey to change the algorithm
   • 0 = Normal algorithm (default).
   • 1 = Aggressive algorithm.

Setting Cooling Delay Time. (OP:05)
In some applications, there is a necessity to delay the operation of the cooling equipment for protection purposes. While in the installer setup,

1. Press key. The display will show cooling delay time.
2. Presskey to select the cooling delay time (0,3,5 minutes).
   NOTE: The default setting is 3 minutes.

Temperature offset. (OP:06)
The temperature can be offset from +3 to -4 °F to eliminate the effect of installing location (e.g. direct sunlight). The thermostat will indicate room temperature by using actual reading plus (or minus ) the offset value.

1. Presskey to show temperature offset.
2. Presskey to select offset value (default = -1 °F).
   NOTE: The default setting is -1 °F.

Time format. (OP:07)
The clock on the display can be selected to show  either 24-hour or AM/PM format. While in the installer setup,

1. Press thekey to show time setting.
2. Presskey to select time setting as follow
   • 0 : 24-hour format.
   • 1 : AM/PM format

NOTE : The default setting is 1: AM/PM format.

Exit Installer Setup.
Press D key again to save all settings and exit to the normal operating mode.

NOTE: After return to normal operation, change the set point to the desired room temperature, otherwise the programmed set point will be used.

OPERATION

System Setting
Use mode switch for selecting system operation.

• Cool: The thermostat controls the cooling system.
• Heat: The thermostat controls the heating system.
• Off: Both heating and cooling are off.

Fan Setting

Fan switch settings are

• On : The fan symbol is indicated on the display. The fan runs continuously. Used to improve air circulation and air quality.
• Auto: Fan and Auto symbols are indicated on the display.

For cooling mode:
The fan starts and stops with cooling equipment.

For heating mode:

• If setup switch is at ‘F’ position, the fan is controlled directly by the heating equipment.
• If setup switch is at ‘E’ position, the fan starts and stop with heating equipment.

Minimum Off Timer
For cooling, when the thermostat calls for operation while theminimum off timer is not expired, the star symbol keeps flashing.
Back Lighting
The thermostat features a backlight that will illuminate all the time.  The user can easily see the LCD screen under dim light situation.

PROGRAMMING SCHEDULE

Select system switch in heat or cool mode. Press “PROG” to enter program mode. Display will prompt to select day.

Press or key to select desired programming period as below.

• Press ‘PROG’ to proceed.
• The thermostat will display program ‘P1’ and prompt to adjust time.
• Press or key to select hour then press ‘PROG’ to proceed.
• Press or key to select minute then press ‘PROG’ to proceed.
• Press ‘PROG’ and select set point by pressingor key.
• Heat or Cool depends on system switch selection. If system switch is in off position, use COOL mode as default.
• Press ‘PROG’ to confirm the setting.
• Press ‘PROG’ again to proceed to next program.
• After P4 is programmed, press ‘PROG’ once more to exit. Press the ‘RUN’ button at any time to exit program mode.

Default setting:
Note : Default setting can be restored to memory by pressing HOLD and RUN buttons at the same time for 3 seconds.

ADJUSTING TEMPERATURE	CLOCK ADJUSTMENT
Adjusting the temperature during any program will make the thermostat to temporarily use this set point until the next program.	The clock needs to be adjusted when installed. The clock will be retained for a few hours in case of power interruption.
	Press ‘CLOCK’ in normal mode to adjust the clock.
During any program, press D or Ñ keys to change set point. Flashing ‘KEY’ icon indicates temporary mode.	Press or  keys to set hour. Press ‘CLOCK’ to confirm and proceed.
The next program timer will cancel the temporary mode. ‘KEY’ the icon will stop flashing and set point will be updated to programmed data.	Press or  keys to set minute. Press ‘CLOCK’ to confirm and proceed.
Press the ‘RUN’ button to cancel the temporary mode and follow the program schedule.	Press or  keys to set Day.
Note : Press HOLD and CLOCK buttons at the same time to toggle between °C / °F.
	Press ‘CLOCK’ to confirm and exit.
HOLD TEMPERATURE
Press the ‘HOLD’ button to maintain a setpoint for an extended period of time, for example, when going on vacation.
Pressing or keys will change the hold temperature. ‘KEY’ icon indicates hold mode.	Note : Press  CLOCK and RUN buttons at the same time to toggle between AM/PM and 24H format.
To cancel, press the ‘HOLD’ button again until the key icon has disappeared. Set point will be updated to the programmed data.
Note that only the HOLD button can be used to exit the HOLD temperature.

SYSTEM CHECKOUT

Cooling Checkout
WARNING! Do not operate in cooling mode when the outdoor temperature is below 50 °F ( 10 °C) otherwise the compressor might be damaged.

1. Slide mode switch to COOL, O terminal will get energized.
2. Pressingkey to lower the set point below room temperature. The star symbol is shown on the display. If flashing, the compressor delay time is not yet expired. If lit steady, the compressor is on and terminal Y is energized.
3. Press key until set point is higher than room temperature. The star symbol is removed. The compressor is off and Y terminal is de-energized.

Heating Checkout

1. Slide mode switch to HEAT, B terminal will get energized.
2. Press key until the set point is higher than room temperature. The star symbol is shown on the display.
   The heating equipment is on and terminal W is energized.
3. Press thekey until set point is lower than room temperature. The star symbol is removed. The heating equipment is off and W terminal is de-energized.

Fan Checkout

1. Slide FAN switch to ON position. The G terminal is energized and the fan should always be running.
2. Slide the FAN switch to AUTO position,
3. in cooling mode, the fan starts and stops with the cooling equipment.
4. In heating mode when the setup switch is in the F position, the fan is controlled directly by the heating equipment and may start a few minutes after the heating equipment turns on. When setup switch is in the E position, the fan starts and stops with the heating equipment.

Application Note

The attached 1000 ohm, the 3-watt resistor is used in certain applications to assure compatibility with power-stealing thermostats where Fan does not come ON during call for Heat or Cool. Note that the resistor has to be installed at the fan terminals and not at the thermostat terminals.
To install the Resistor

1. Disconnect the power supply.
2. Connect the resistor leads to the terminals as shown in the drawing.
3. Turn on the system power.

VTRONIX TE80SB-501 Programmable Digital Thermostat INSTALLATION MANUAL