Bryant TSTATBBPCM01-A User Manual

user’s information manual
COMMERCIAL THERMOSTAT (P/N TSTATBBPCM01-A)
Cancels: New OM TSTAT-1
6/15/96
IMPORTANT: Read entire instructions before programming the thermostat.
GENERAL
Bryant’s 7-day, commercial, programmable thermostats are wall-mounted, low-voltage thermostats which maintain room temperature by controlling the operation of an HVAC (heat­ing, ventilation, and air conditioning) system. Separate heat­ing and cooling set points and auto-changeover capability al­low occupiedandunoccupiedprogramming schedules for energy savings.
All thermostats allow up to 4 time and temperature settings to be programmed per 24-hr period. Each thermostat stores programs for 7 independent days. Batteries are not required. During power interruption the internal memory stores pro­grams for an unlimited time.
OPERATION
I. THERMOSTAT DISPLAY
The thermostat display is located in the top center of the ther­mostat. The following information can be displayed on the screen:
• mode (OFF, EHEAT, COOL, AUTO, or HEAT)
• fan setting (ON or AUTO)
• hold status
• room temperature
• desired temperature
• clean filter status
• time of day
• day of the week
• schedule period (OC1, UN1, OC2, or UN2)
• outdoor temperature (optional)
II. THERMOSTAT PROGRAMMING BUTTONS
The thermostat has programming buttons which are used to change the set points of the thermostat, set the modes, and program schedules. The programming buttons are accessible from underneath the thermostat cover. Toaccess the program­ming buttons, pull on the hinged thermostat cover. See Fig. 1. The programming buttons are: Copy Previous Day, Pro­gram, Mode, Change Day, End Program, Fan, Set Time, Re­set Filter, and Hold.
The Up and Down buttons are used to change the current, desired temperature set point and to scroll through program­ming set points. The Up and Down buttons are accessible from the outside of the thermostat.
The daily schedule can be overridden in 2 ways: pressing the Hold button, or pressing the Up and Down buttons to change the temperature set point.
A. Programming Button Lockout
The thermostat has a lockout feature which will not acknowl­edge programming buttons until the lockout code is entered. After the lockout code has been entered, the keypad will re­main unlocked until the user has stopped pressing buttons
for 2 minutes. The lockout feature is configured by the installer.
NOTE: Thelockout code sequence is Mode, Copy Previous Day , Set Time, and Hold.
B. Hold Button Operation
Pressing the Hold button disables the time and temperature schedule and holds the current desired temperature set point. When a Hold is active, the HOLD annunciator is displayed on the thermostat screen. To release the Hold, press the Hold button a second time. The Hold will remain active for a du­ration of 4 hours, or until a new time schedule starts.
C. Fan Button Operation
The Fan button selects fan operation. When the fan is set to ON, the fan will run continuously for improved air circula­tion. When the fan is set to AUTO, the fan will run during heating and cooling operation only.During setback mode (UN1 and UN2) the fan will always be in AUTO mode.
D. Mode Button Operation
The Mode button selects the operating mode of the thermo­stat. If OFF is selected, the thermostat will not enter heating or cooling mode. If HEATis selected, the thermostat will only enter heating mode (if the room temperature is below the heat­ing set point). If COOL is selected, the thermostat will only enter cooling mode (if the room temperature is above the cool­ing set point). If AUTO is selected, the thermostat will enter heating or cooling mode based on the room temperature and the heating and cooling set points. Heat pumps also have an EHEAT selection. If EHEAT is selected, the heat pump will use the second stage of heating to provide heating, if neces­sary. The annuciator for each selection will be displayed on the thermostat when selected.
E. Auto-Changeover
When the thermostat mode is set to AUTO, the thermostat will provide automatic changeover from heating to cooling mode and cooling to heating mode when required. The thermostat will automatically switch to maintain the desired tempera­ture setting. The thermostat does not need to be manually changed from heating to cooling or cooling to heating operation.
NOTE: It is recommended that auto-changeover mode not be used if the outdoor temperature is consistently lower than 50 F or greater than 80 F. In these cases, select heating or cooling mode only.
F. Smart Recovery (Heating Mode)
The smart recovery function is designed to save energy by gradually adjusting temperatures to meet scheduled set points. The thermostat has 2 schedule modes, normal occupied mode and setback mode (a time when the space is unoccupied). The Smart Recovery function begins 1 to 1.5 hours before the sched­uled occupied mode and gradually adjusts room temperature so the temperature is at the occupied mode set point when the occupied time period begins.
LCD DISPLAY SCREEN
UP BUTTON
DOWN BUTTON
Fig. 1 — Thermostat Display and Programming Buttons
This is more efficient than making the system run at full ca­pacity until the desired temperature is met.
NOTE: Smart Recovery does not apply to cooling operation. III. SET CURRENT DAY
The Change Day button will change the day shown on the thermostat display to the next day. If a schedule has been entered, the thermostat will follow the schedule of the new selected day.
IV. SET CURRENT TIME
The Set Time button allows the user to change the time dis­played on the thermostat. Press the Set Time button. The dis­play will show the SET TIME annunciator. Press the Up and Down buttons until the correct time is shown. Hold down the buttons to quickly move through the time display. The AM and PM annunciators will automatically change. To ensure the schedules are properly followed, make sure that AM or PM is correct for the time chosen. When the correct time is shown, press the Set Time button again to exit the Set Time mode.
V. RESET FILTER
The Reset Filter button is used to clear the 9Clean Filter9 icon on the display screen. The 9Clean Filter9 icon reminds the user when it is time to change or clean the filter of the unit.
VI. PROGRAMMING THERMOSTAT SCHEDULES
Before programming the thermostat, plan the thermostat daily schedule. The schedule is divided into 7 days (Monday through Sunday). Each day has 4 time periods (OC1, UN1, OC2, UN2). Each time period has a start time, heating set point, and cool-
ing set point. Fill in Table 1 on page 3 as an aid to program­ming the daily schedules.
A. Programming Mode
To program the daily schedules, perform the following procedure:
1. Enter programming mode by pressing the Program but­ton. The PROGRAMMING annunciator will appear on the thermostat display. The first day of the schedule (MON) will be displayed and the first programming time period (OC1) of that day will be displayed. The SET TIME annunciator is also displayed.
NOTE: If a programming button is not pushed for 60 sec­onds, the thermostat will exit programming mode and any changes made will be saved.
2. Press the Up and Down buttons to set the start time for the schedule day and period shown (MON, OC1).
3. Press the Program button once the correct time is shown. The SET TIME annunciator will turn off and the SET DESIRED TEMP annunciator will be displayed.
4. The heating and cooling set points can now be pro­grammed. The HEAT and COOL annunciators are dis­played for the heating and cooling set points respectively. The mode button is used to toggle between the heating and cooling set points. Use the Up and Down buttons to raise and lower the temperature set points.
NOTE: There must be at least 3 degrees difference between the cooling and heating set points. The thermostat will au­tomatically change any set points closer than 3 degrees.
5. Press the Program button to advance to the next time period (UN1).
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