PRO T755 Universal Thermostat Installation Guide

PRO T755 Universal Thermostat

Thermostat Application Guide

Power Type

• Battery Power
• Hardwire (Common Wire)
• Hardwire (Common Wire) with
• Battery Backup

A trained, experienced technician must install this product.
Carefully read these instructions. You could damage this product or cause a hazardous condition if you fail to follow these instructions.
Wall Locations
The thermostat should be installed approximately 4 to 5 feet above the floor. Select an area with average temperature and good air circulation.
Installation Tip
Pick an installation location that is easy for the user to access. The temperature of the location should be representative of the building.
Do not install thermostat in locations:

•  Close to hot or cold air ducts
•  That are in direct sunlight
• With an outside wall behind the thermostat
• In areas that do not require conditioning
• Where there are dead spots or drafts (in corners or behind doors) Where there might be concealed chimneys or pipes

Subbase Installation

1. Horizontal Mount
2. Vertical Mount

For vertical mount put one screw on the top and one screw on the bottom. For horizontal mount put one screw on the left and one screw on the right.
Installation Tip:
Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.
Mercury Notice
All of our products are mercury free. However, if the product you are replacing contains mercury, dispose of it properly. Your local waste management authority can give you instructions on recycling and proper disposal.

Mount Thermostat

Align the 4 tabs on the subbase with corresponding slots on the back of the thermostat, then push gently until the thermostat snaps in place.

Battery Installation

Battery installation is optional if thermostat is hardwired (R and C terminal connected to 24V power).
Important:
High quality alkaline batteries are recommended. Rechargeable batteries or low quality batteries do not guarantee a 1-year life span. Located ont he back of the thermostat.
About The Private Label Badge
All of our thermostats use the same universal magnetic badge. Visit the company website to learn more about our free private label program.Gently slide a screwdriver into the bottom edge of the badge. Gently turn the screwdriver counter clockwise. The badge is held on by a magnet in the well of the battery door. The badge should pry off easily. DO NOT USE FORCE.
Getting to know your thermostat

1. LCD Display
2. Glow in the dark light button
3. Fan Button
4. System Button
5. Temperature Setpoint Buttons
6. User Buttons
7. Private Label Badge

Getting to know your thermostat

1. Indicates the current room temperature

2. Time and day of the week

3. Low Battery Indicator: Replace batteries when this indicator is shown.

4. Menu Options: Shows different options.

5. Program Time Periods: This thermostat has 4 programmable time periods per day.

6. System Operation Indicators:
   The COOL ON , HEAT ON or icon will display when the COOL, HEAT, or  (fan) is on. The compressor delay feature is active if these are flashing.

7. Hold is displayed when the thermostat program is permanently overridden.

8. Setpoint: Displays the selected setpoint temperature.

9. System: Indicates current mode of operation.

10. Stages: Stage 1 will appear on the display when the 1st stage of heat or cool is on. +2 will appear on the display when the 2nd stage of heat or cool is on. +3 will appear on the display when the 3rd stage of heat or cool is on.

11. Globe: Globe is displayed if an energy efficient temperature has been selected.

Important
The low battery indicator is displayed when the AA battery power is low. If the user fails to replace the battery within 21 days, the screen will only show the low battery indicator but maintain all functionality. If the user fails to replace the batteries after an additional 21 days (days 22-42 since first “low battery” display) the setpoints will change to 55˚F (Heating) and 85˚F (Cooling). If the user adjusts the setpoint away from either of these, it will hold for 4 hours then return to either 55˚F or 85˚F. After day 63 the batteries must be replaced immediately to avoid freezing or overheating because the thermostat will shut the unit off until the batteries are changed.

Wiring

1. If you are replacing a thermostat, make note of the terminal connections on the thermostat that is being replaced. In some cases the wiring connections will not be color coded. For example, the green wire may not be connected to the G terminal.
2. Loosen the terminal block screws. Insert wires then retighten terminal block screws.
3. Place nonflammable insulation into wall opening to prevent drafts.

Caution: Electrical Hazard
Failure to disconnect the power before beginning to install this product can cause electrical shock or equipment damage.
Warning:
All components of the control system and the thermostat installation must conform to Class II circuits per the NEC Code.
Wiring Tips
C Terminal
The C (common wire) terminal does not have to be connected when the thermostat is powered by batteries.
Wire Specifications
Use shielded or non-shielded 18-22 gauge thermostat wire.
Installation Tip: Do not overtighten terminal block screws, as this can damage the terminal block. A damaged terminal block can keep the thermostat from fitting on the subbase correctly or cause system operation issues. Max Torque = 6in-lbs.

1. Power supply
2. Factory – installed jumper. Remove only when installing on a 2 transformer systems.
3. Use either O or B terminals for changeover valve.
4. Optional 24 VAC common connection when thermostat is used in battery power mode.

Typical 2H/2C System: 1 Transformer Note:
In many systems with no emergency heat relay a jumper can be installed between W/E and W2.
Note: This thermostat is hardwire powered when the 24V transformer is connected to the Common and RC terminals of the thermostat.

• In many systems with no emergency heat relay a jumper can be used between E and W2.

Typical Cool-Only System With Fan Typical Heat Only System With Fan Typical 2H/2C System: 2 Transformer Typical 2H/1C Heat Pump System

Features

Temporary and Permanent Hold Feature
When cool or heat is turned on, the thermostat will display HOLD and RUN SCHED on the left of your screen when you press the or button.
Temporary Hold: At this time if you do nothing, the temperature will remain at this setpoint temporarily for 4 hours.
Permanent Hold: If you press the HOLD key on the left of your screen, you will see HOLD appear below the setpoint temperature in the display. The thermostat will now permanently stay at this setpoint and can be adjusted using the or keys.
To Return to Running Schedule: Press the RUN SCHED button on the left of your screen to exit either temporary or permanent hold.
Filter Change Reminder
If your installing contractor has configured the thermostat to remind you when the air filter needs to be changed, you will see FILT in the display when your air filter needs to be changed.
Resetting the filter change reminder: When FILT reminder is displayed, you should change your air filter and reset the reminder by holding down the second button from the top left side of the thermostat for 3 seconds.

Technician Setup Menu

This thermostat has a technician setup menu for easy installer configuration. To set up the thermostat for your particular application:

1. Press the MENU button.

2. Press and hold the TECH SET button for 3 seconds. This 3 second delay is designed so that homeowners do not accidentally access the installer settings.

3.  Configure the installer options as desired using the table below. Use the or keys to change settings and the NEXT
   or PREV key to move from one step to another.
   Note:
   Only press the DONE key when you want to exit the Technician Setup options.

4.  Press the DONE key to exit.

Swing Setting Tip
Temperature swing, sometimes called differential or cycle rate, can be customized for this individual application. For most applications choose a swing setting that is as long as possible without making the occupants uncomfortable. Swing Setting Tip
The second stage will turn on at 2x the swing setting. The second stage will turn off when 1x the swing is reached. For example, if the swing setting is .5 degrees for heating and the thermostat is set at 70˚F, the first stage will turn on at approximately 69.5˚F. The second stage will turn on at 69˚F. The second stage will turn off at 69.5˚F and the first will turn off at 70.5˚F. If the third stage is used, it will turn on at 68.5˚F and turn off at approximately 69˚F.


Contractor Call Number Note
If contractor call number is selected ON, the phone number entered will show in the display if there has been a continuous call for heating or cooling for 24 hours or if the light button is held down for 3 seconds. To remove the phone number from the display, hold the light button down for 3 seconds.



Set Time

1.  With system switch set to OFF, press the MENU button
2. Press SET TIME
3.  Day of the week will be flashing. Use the key to select the current day of the week.
4. Press NEXT STEP
5.  The current hour is flashing. Use the or key to select the current hour. When using 12-hour time, make sure the correct a.m. or p.m. choice is selected.
6. Press NEXT STEP
7. Minutes are now flashing. Use the select current minutes.
8. Press DONE when completed.

Programming

All of our programmable thermostats are shipped with an energy saving pre- program. You can customize this default program by following the steps on the next page.
There are four time periods for each program (WAKE, LEAVE, RETURN, SLEEP).
A Note About Auto Changeover:
In Auto you have the ability to switch between Auto Heat or Auto Cool by pressing the system key. This can be done once the current mode has reached its setpoint. For example: if in Auto Heat, the heat setpoint must be satisfied before the thermostat will allow you to switch to Auto Cool. You can switch out of Auto by holding down the system key. To get back into Auto, you must toggle the system key to Auto.
All of our programmable thermostats are shipped with an energy saving pre- program. You can customize this default program by following the steps on page 16.
There are four time periods for each program (WAKE, LEAVE, RETURN, SLEEP). Set Program Schedule 5+1+1 or 7 Day
To customize your program schedule, follow these steps:

1.  Select HEAT or COOL with the system switch. Note: You have to program heat and cool each seperately.
2. Press the MENU button (If menu does not appear first press RUN SCHED)
3. Press SET SCHED. Note: Monday-Friday or (Monday if in 7 Day) is displayed and the WAKE icon is shown. You are now programming the wake time period for that day.
4.  Time is flashing. Use the or key to make your time selection for that day’s WAKE time period. Note: If you want the fan to run continuously during this time period, select ON with the FAN key
5.  Press NEXT STEP
6.  The setpoint temperature is flashing. Use the or key  to make your setpoint selection for that day’s WAKE time period.
7. Press NEXT STEP
8. Repeat steps 4 thru 7 for that day’s LEAVE time period, RETURN time period, and SLEEP time period.

If in 5+1+1 Programming:
Repeat steps 4 thru 8 for the Saturday + Sunday time periods.
If using 7- Day Programming:
Use these same steps for every individual day.
You can use the table below to plan your customized program schedule.

Specifications

The display range of temperature … 41˚F to 95˚F (5˚C to 35˚C)
The control range of temperature…. 44˚F to 90˚F (7˚C to 32˚C)
Load Rating……………………………………….. 1 amp per terminal, 1.5 amp
maximum all terminals combined
Swing (cycle rate or differential) …… Heating is adjustable from 0.2˚ to 2.0˚
Cooling is adjustable from 0.2˚ to 2.0˚
Power source …………………………………….18 to 30 VAC, NEC Class II, 50/60 Hz
for hardwire Battery power from 2 AA Alkaline batteries
Operating ambient …………………………. 32˚F to +105˚F (0˚C to +41˚C)
Operating humidity ………………………… 90% non-condensing maximum
Dimensions of thermostat …………….. 4.7” W x 4.3” H x 0.9” D

References

• Pro1 IAQ Thermostats - Non Programmable | Programmable | Wireless

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