T7516A,B,C
Energy Management System
USER’S GUIDE
Weekday/Weekend 7-day Programmable
Heat and/or Cool Conventional
and Heat Pump
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Welcome to the world of comfort and energy savings with your new Honeywell T7516A,B,C Energy Management Thermostat brought to you by your energy utility. This thermostat allows up to seven separate days of programming. You can set the thermostat to control the temperature in your home, your water heater, and another appliance (such as a swimming pool pump) according to your personal schedule and preferences. This thermostat keeps you comfortable, and saves you energy.
Besides being programmable, this thermostat contains a communications module that allows your energy utility to communicate with your thermostat so you can take advantage of Residential Service Variable Price (RSVP) Rate.
Residential Service Variable Price (RSVP) Rate. The T7516A,B,C Energy Management Thermostat informs you of the energy price in effect at any given time (see Fig. 1). A special feature of this thermostat allows you to program it to automatically adjust your energy use for each price. These prices are: Low (least expensive), Medium, High, and Critical (most expensive). The thermostat also provides you with the ability to operate your electric water heater and another appliance based on the price in effect.
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AM
INDICATOR FOR RSVP CURRENT PRICE M12661A
Fig. 1. RSVP Rate indications.
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Table of Contents |
Getting to Know Your Thermostat ............................................................................................ |
6 |
Standard Display ..................................................................................................................... |
6 |
Keypad .................................................................................................................................... |
8 |
Battery Compartment .............................................................................................................. |
8 |
Replacing Thermostat Batteries ......................................................................................... |
8 |
Indicator Light .......................................................................................................................... |
10 |
Programming Overview ........................................................................................................... |
10 |
User Operations ...................................................................................................................... |
10 |
Present Setting ................................................................................................................... |
10 |
Overrides ............................................................................................................................ |
12 |
Hold ............................................................................................................................... |
12 |
Temporary ...................................................................................................................... |
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Recovery From Setback ..................................................................................................... |
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Programming Your Thermostat ................................................................................................ |
15 |
Price Response ....................................................................................................................... |
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Entering Schedule Programming ............................................................................................ |
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Inputting Basic Program ..................................................................................................... |
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Changing Parts of the Program .......................................................................................... |
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Programming Price Response .................................................................................................. |
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Overview ................................................................................................................................. |
48 |
Entering Price Response Programming .................................................................................. |
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Controlling Heat/Cool System .................................................................................................. |
59 |
Changing the System Setting .................................................................................................. |
59 |
Controlling Fan........................................................................................................................... |
60 |
Troubleshooting ......................................................................................................................... |
61 |
Personal Programming Charts ................................................................................................. |
66 |
Customer Assistance ................................................................................................................ |
71 |
Warranty ...................................................................................................................................... |
71 |
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Getting to Know Your Thermostat
The thermostat has a display, a covered 15 key keypad, a covered battery compartment, and an indicator light on the front panel (see Fig. 2). Fig. 2 shows the thermostat, display, and all display segments.
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AM |
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PM |
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Scientific |
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Atlanta |
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Program |
Time |
Temperature |
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Device |
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Water |
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Ahead |
Warmer |
On-Off-Clr |
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Day of |
Back |
Cooler |
Appl |
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Week |
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On-Off-Clr |
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Time |
Present |
Hold |
Fan |
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Period |
Setting |
Auto-On |
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Price |
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Clear |
Heat |
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Response |
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Cool |
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INDICATOR LIGHT
Fig. 2. T7516 Energy ManagementM15533
Thermostat.
Standard Display
The current room temperature and time are always part of the standard display. Other displayed data includes heating and air conditioning (Heat/Cool) status, day of the week, schedule period, water heater and appliance status, and the RSVP current price (see Fig. 2). The thermostat display automatically sequences several displays (see Fig. 3).
NOTE: The colon in the time display blinks, except when in the programming mode.
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STANDARD 1
AM
HOLD
TEMPORARY
1
2
2
A SERIES OF SCREENS THAT PROVIDE THE PHONE NUMBER TO CALL TO CONTACT YOUR ENERGY UTILITY.
BATTERY LOW INDICATION
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Keypad
Lift the front cover to see the keypad. From the keypad, you can operate and program the thermostat. To operate the thermostat, press and release the keys.
NOTE: The thermostat registers all programming inputs immediately and maintains them until manually changed. Low batteries or power outages do not delete thermostat programming.
Battery Compartment
The battery compartment under the left side of the front panel contains two AA batteries that keep the clock running during a power interruption.
Replacing Thermostat Batteries
IMPORTANT
Install batteries to maintain the time in the event of a power loss. Although the thermostat has a low battery indicator, replace the batteries once every two years to prevent the thermostat from losing the time during a momentary power loss.
NOTE: If the time is ever incorrect, you can not change it. Your energy utility periodically updates the clock to the correct time.
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As the batteries run low, the thermostat display sequence includes an indication of this. The low battery indication appears one to two months before the batteries run out completely. Replace the batteries as soon as possible after the indication appears.
You need two AA alkaline batteries (not supplied); non-alkaline batteries do not last as long, and can leak, damaging the thermostat or wall surface. To replace the batteries:
1. Use a coin to carefully remove the battery door (see Fig. 4).
2. Follow the directions on the label revealed by removal of the battery door.
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REMOVING |
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BATTERY |
M1719C |
DOOR |
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Fig. 4. Battery Door Removal.
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Indicator Light
This light indicates primarily the emergency heat (or auxiliary heat). It also indicates whether Critical Time-of-Use Pricing is in effect, or is scheduled (see Table 1).
When the light is off, the emergency heat (or auxiliary heat) is off.
When the light is on, the emergency heat (or auxiliary heat) is on.
Table 1. Critical RSVP Price Indications.
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Auxiliary (or |
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Emergency) Heat |
Indicator Light |
Critical RSVP Price |
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Off |
Flashes three times, then pauses. |
In effect. |
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Flashes once, then pauses. |
Scheduled to start within 30 min. |
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On1 |
Flashes twice, then remains on. |
In effect. |
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Periodically turns off once. |
Scheduled to start within 30 min. |
1Heat pump thermostats only.
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Programming Overview
Complete the Personal Programming Charts (Tables 3 through 6) before you program your thermostat.
You can program the thermostat with separate schedules for heat, cool, electric water heater, and one appliance (such as a pool pump).
Each device schedule is for seven separate days and up to four periods. For convenience, you can program the seven days individually, or simultaneously in any one of the following groupings: Monday through Sunday, Monday through Friday, or Saturday and Sunday. The four periods are: Morning (MORN), Day (DAY), Evening (EVE), and Night (NIGHT).
User Operations
Present Setting
Press and release the Present Setting key to return to standard display from any other display. The display first switches to show the current settings. After a few seconds the thermostat returns to the standard display.
NOTE: If the heating and cooling are both off, the display will show Set - -.
CAUTION
Equipment Damage Hazard.
Use of sharp fingernails or pencil points can damage the keypad beyond repair.
Use the ball of your finger or a soft pencil eraser when pressing the keys.
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Overrides
An override is a setting used to manually change the setting without affecting the program memory.
From the standard display, press the Clear key to clear any temperature override in effect.
M15508
To clear Water or Appliance overrides, press the Water or Appl key until the display shows neither On nor Off underneath Water or Appl.
Water |
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Appl |
On-Off-Clr |
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On-Off-Clr |
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M15470 |
M15471 |
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Hold
A hold is a setting used to override the program for an extended period of time. A hold maintains a setting until manually changed.
The hold display indicates all items currently set on hold.
M15505
Press and release the Hold key to get to the hold display. Modifying any item being permanently held (with Warmer, Cooler, Water, and Appl keys) also brings up the hold display. Press Warmer or Cooler keys with hold displayed to increase or decrease the setpoint.
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Press Water or Appl keys to toggle the hold status.
Water switches between: no hold and hold off.
Appl cycles through: no hold, hold on, hold off, and back to no hold.
NOTES:
ó Only items being held appear on the display.
ó Water cannot be permanently held on, but it can be permanently held off.
ó With no temperature displayed, no hold exists.
Temporary
A temporary is a setting used to override the program for a brief period of time. Temporary settings maintain a setting until either the
RSVP Price changes to Critical, or the thermostat enters the next scheduled period.
The temporary display indicates the items set on temporary.
M15506
From the standard display, press the Warmer or Cooler key to get to the temporary display. Use these keys to increase or decrease the room temperature setting.
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Press Water or Appl keys to display the temporary display and toggle the water or appliance state.
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NOTES:
ó A temporary cannot clear or replace a hold.
ó With a hold in effect, an attempt to set a temporary changes the display to the hold display.
ó Only items being held appear on the display.
óIn spite of period changes, a temporary Water override, by default, lasts for one hour.
óWith no temperature displayed, no temporary exists.
óPress the Hold key twice to get to the temporary display.
óA temporary ends when the RSVP price changes to a rate programmed to switch on the Water or Appliance.
Recovery From Setback
Recovery is the time when the thermostat operates the heating or cooling equipment to return the house from the energy savings to the temperature you prefer when you are present and awake.
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This thermostat uses a recovery process that turns your heating/cooling equipment on or off at the time you program the temperature to change. For example, if you set the thermostat to heat to 72°F at 6:00 AM, the heating equipment comes on at 6:00 AM and begins warming the house to 72°F. If you want the temperature in the house to be 72°F at 6:00 AM, you must set the thermostat to turn on earlier; for example, 5:30. (The amount of time required to warm or cool your house to the temperature you want depends on many factors such as the size of your heating/cooling equipment and the outdoor temperature.)
NOTE: If the thermostat is for a heat pump system, the thermostat uses a method of recovery that helps reduce the use of auxiliary heat.
Programming Your Thermostat
IMPORTANT
Press and release the Present Setting key to exit programming and return to the standard display.
NOTES:
ó Energy prices supplied by your energy utility may influence the times you choose to schedule periods for maximum energy efficiency.
ó Each period can occur at any programmed time; for example, you can set morning at 9 PM. When you program the thermostat, be careful to use the correct time to avoid confusion.
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MORN is the time you get up. Generally, you want the house at a comfortable temperature when you wake up. Set the MORN time earlier than your alarm clock so your home has time to reach the desired temperature.
DAY is the time you leave for work or school. Generally, once you leave your home, you want the temperature higher or lower (depending on the season) so that you can save energy while you are away.
EVE is the time you return from work or school. Again, you want your home at a comfortable temperature when you return and go about the normal activities of your evening. Set the EVE time earlier than the time you arrive so your home
has time to reach the desired temperature before you get there.
NIGHT is the time you usually go to sleep. While you are sleeping, you can save energy by setting the thermostat to control the temperature higher or lower (depending on the season).
If you choose not to program the thermostat, it controls the temperature using the following defaults:
• The cooling temperature remains set to a constant 78°F.
• At 6:00 AM every day, the thermostat sets the heating temperature to 68°F.
• At 10:00 PM every night, the thermostat reduces the heating temperature to 60°F
You do not need to enter a time and tempera-
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ture program for every period if your schedule does not require it; for example, if your home is occupied during the day on weekdays, you can program only the MORN and NIGHT times.
NOTE: You cannot set temperatures higher than 88°F or lower than 45°F.
Price Response
You can also program the thermostat based on the current price of electricity. Use Tables 7 and 8 to plan the Price Response program.
Price Response programming allows the thermostat to respond to changes in the RSVP prices. Your energy utility tells the thermostat what the current RSVP price is for electricity. These prices are: Low (least expensive), Medium, High, and Critical (most expensive).
As the cost of energy increases, the thermostat uses your pre-programmed choices to reduce usage by temporarily changing the setpoint; that is, it changes the temperature settingó increasing it for cooling, decreasing it for heatingóor turns off the water heater and/or appliance.
NOTE: You can enter the number of degrees you want the thermostat to change the temperature (offsets) for each price except Low. The Low price always uses whatever schedule programming exists and it is the basis for the offsets. The one exception is the water heater, which is always enabled during the low price.
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CAUTION
Equipment Damage Hazard.
Use of sharp fingernails or pencil points can damage the keypad beyond repair.
Use the ball of your finger or a soft pencil eraser when pressing the keys.
IMPORTANT
When programming for the appliance, make certain that you consider potential safety issues; for example: with a pool pump during winter freezing weather, you will have to operate the pool pump as you have always done to prevent pump and pipe freezing.
NOTE: Before programming the thermostat, remove the clear protective plastic display overlay.
Entering Schedule Programming
Refer to your Personal Programming Charts and proceed as follows:
IMPORTANT
The thermostat registers all programming inputs immediately and maintains them until manually changed. Low batteries or power outages do not delete thermostat programming.
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NOTE: When setting a program time or temperature, the instructions direct you to ìPress and hold until the display shows the desired time (or temperature).î This changes the setting quickly in the selected direction. Use this method when the change is large (for example, two hours, or ten degrees). Once the setting is close, press and release the key to move the setting one step at a time.
Inputting Basic Program
The most efficient way to program the thermostat is to first input a basic program for the entire week. Then, you can make changes to specific days to fit your needs.
IMPORTANT
Because this procedure can affect up to seven days of programming, be careful when making changes with multiple days selected.
NOTES:
ó If you delete all programming with the CLEAR key, the thermostat uses the default program.
ó PGM is an indication that you are in programming mode.
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Step 1: Setting Basic Cooling Times and Temperatures.
First program the
MORN time and Device temperature, if
desired, for the entire week.
Day of
Week
Time
Period
Press and release until the display shows PGM COOL.
Press and release until the display shows MON TUE WED THU FRI SAT SUN.
Press and release until the display shows MORN.
AM
M15403
AM
M15403
AM
M15403
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Ahead
Back
Warmer
Cooler
Press and hold until the display shows the desired time.
Press and hold until the display shows the desired temperature.
AM
M15404
AM
M15405
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Program the DAY time and temperature, if desired, for the entire week.
Time
Period
Ahead
Back
Warmer
Cooler
Press and release until the display shows DAY.
Press and hold until the display shows the desired time.
Press and hold until the display shows the desired temperature.
M15406
AM
M15407
AM
M15408
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