Programmable Thermostat
TAYSTAT 340, 350
OWNER’S GUIDE
Pub. No. 22-5183-01
69-1228-1
FEATURES
The Trane Co. sells comfort systems. Comfort is achieved through matching the correct equipment and controls. This thermostat is designed to provide the maximum comfort for your needs.
Some of the basic offerings are:
•Program up to four time periods and temperature settings to complement your lifestyle.
•Set different schedules for weekdays and weekends.
•Programs are permanently held in memory in the event of a power failure.
•Indefinite temperature hold.
•Preprogrammed for your convenience.
HOLD KEY OVERRIDES PROGRAM
OR HOLDS TEMPERATURE INDEFINITELY.
LCD DISPLAY
Hold Select
PM
TUE
FAN |
SYSTEM |
Auto On |
Cool Off Heat |
INCREASE KEY: INCREASE SETPOINT,
OR ADVANCE TO NEXT STEP.
SELECT KEY:
TO SET TIME
AND DAY.
DECREASE KEY: DECREASE TEMPERATURE OR SCROLL THROUGH INSTALLER SETUP OPTIONS.
FAN SWITCH |
SYSTEM SWITCH |
M18527 |
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Your thermostat displays the current day, time, period, temperature and system ( 
for heating and 
for cooling) in normal mode. In programming mode, only the setting or settings being programmed display. For example “SAT SUN” (Saturday Sunday) displays while programming the weekend schedule.
SET DISPLAYS WHILE |
CURRENT TEMPERATURE DISPLAYS. |
SETTING THE CLOCK. |
HEATING OR COOLING SETPOINT |
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DISPLAYS DURING PROGRAMMING. |
CURRENT TIME DISPLAYS |
TEMPORARY DISPLAYS |
IN NORMAL MODE. |
DURING TEMPORARY |
PERIOD START TIME DISPLAYS |
TEMPERATURE HOLD. |
IN PROGRAMMING MODE. |
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CURRENT DAY DISPLAYS IN NORMAL MODE. MONDAY THROUGH FRIDAY DISPLAY DURING WEEKDAY PROGRAMMING MODE.
SATURDAY AND SUNDAY
DISPLAY DURING WEEKEND PROGRAMMING MODE.
SET TEMPORARY |
DURING NORMAL MODE, THE CURRENT PERIOD DISPLAYS. DURING PROGRAMMING, THE PERIOD BEING
PROGRAMMED DISPLAYS (WAKE, LEAVE, RETURN OR SLEEP).
FLAME DISPLAYS DURING HEATING OR WHILE |
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PROGRAMMING HEATING SETPOINT; SNOWFLAKE DISPLAYS |
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DURING COOLING OR WHILE PROGRAMMING COOLING SETPOINT. |
M18560 |
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PROGRAMMING YOUR THERMOSTAT
CLOCK
Setting the Current Day and Time
To set or reset the current day and time, follow these instructions:
IMPORTANT
Always press the keys with your fingertip or similar blunt tool. Sharp objects like pen and pencil points will damage the keyboard.
Note: To exit and save the programming mode at any time, press Hold.
1.To set Current Time, press Select twice. Press ▲ or ▼ to set current time.
SET
PM
M12591A
Note: While setting the current time, SET displays.
2.To set Day of Week, press Select again. Press ▲ or ▼ to set current day.
SET
M18565
3. Press Hold to exit programming mode.
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Organizing Your Schedule
Your thermostat can be set for four time periods (Wake, Leave, Return, and Sleep) for the weekday schedule (Monday through Friday), and four time periods for the weekend schedule (Saturday and Sunday). Without additional programming, your thermostat follows the same preprogrammed schedule for both weekdays and weekends (see Table 1).
WAKE Choose the time you want your heating or cooling system to start to reach your comfort temperature after the SLEEP period.
How? Consider the time required to reach your comfort level. Adjust the Wake time to earlier when you know it will take the system longer to reach your comfort temperature.
LEAVE Choose the time you want your heating or cooling system to start an energy-saving mode while you are away at work or school.
How? Set the Leave temperature lower during heating season, and higher during cooling season.
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RETURN Choose the time you want your heating or cooling system to start to reach your comfort temperature after the energy-savings LEAVE period.
How? Consider the time required to reach your comfort level. Adjust the Return time to earlier when you know it will take the system longer to reach your comfort temperature.
SLEEP Set the time you want your heating or cooling system to start to reach your Sleep temperature.
To use this period as an energy-savings mode, set the temperature lower during heating season, and higher during cooling season.
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The preprogrammed schedule is shown in Table 1. You may keep this schedule or organize your own. Schedules are adjustable as often as you wish. If you decide to keep this schedule, no further programming is necessary.
Table 1. Preprogrammed Weekday and Weekend Schedule.
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Period |
Time |
Heat Setpoint |
Cool Setpoint |
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Wake |
6:00 AM |
70°F (21°C) |
78°F (26°C) |
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Leave |
8:00 AM |
62°F (17°C) |
85°F (29°C) |
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Return |
5:00 PM |
70°F (21°C) |
78°F (26°C) |
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Sleep |
10:00 PM |
62°F (17°C) |
75°F (24°C) |
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To begin programming your weekday and weekend schedules, fill in Tables 2 and 3.
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Customizing Your Weekday Schedule
Use Table 2 to organize your weekday schedule. Fill in the times and temperatures you want to program. The names of the four periods are filled in for you.
Table 2. Your Weekday Schedule.
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Heating |
Cooling |
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Period |
Start Time |
Temperature |
Temperature |
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Wake |
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Leave |
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Return |
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Sleep |
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