American Standard ASYSTAT 340 Programmable Thermostat OWNER’S GUIDE

American Standard ASYSTAT 340 Programmable Thermostat

FEATURES

American Standard sells comfort systems. Comfort is achieved by matching the correct equipment and controls. This thermostat is designed to provide 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.

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 and Sunday) displays while programming the weekend schedule.

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 a similar blunt tool. Sharp objects like pen and pencil points will damage the keyboard.
Note: To exit and save the time and day setting at any time, press Hold.

1. To set Current Time, press Select twice.
   Press ▲ or ▼ to set current time.
   While setting the current time, SET displays.
2. To set Day of Week, press Select again. Press ▲ or ▼ to set the current day.
3. Press Hold to exit the day and time mode.

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.
• 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.

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.

Period	Time	Heat Setpoint	Cool Setpoint
Wake	6:00 AM	70°F (21 °C)	78°F (26 °C)
Leave	8:00 AM	62°F (17 °C)	85°F (29 °C)
Return	5:00 PM	70°F (21 °C)	78°F (26 °C)
Sleep	10:00 PM	62°F (17 °C)	75°F (24 °C)

To begin programming your weekday and weekend schedules, fill in Tables 2 and 3.

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.

Period	Start Time	Heating Temperature	Cooling Temperature
Wake
Leave
Return
Sleep

Customizing Your Weekend Schedule
Use Table 3 to organize your weekend schedule. Fill in the times and temperatures you want to program. The names of the four periods are filled in for you.
Table 3. Your Weekend Schedule.

Period	Start Time	Heating Temperature	Cooling Temperature
Wake
Leave
Return
Sleep

Note: Start Time is the time your thermostat begins to reach the desired temperature.
Note: The thermostat cannot be set higher than 99°F (37°C) or lower than 50°F (10°C).

Setting the Weekday Program

 

IMPORTANT
Always press the keys with your fingertip or a similar blunt tool. Sharp objects like pen and pencil points will damage the keyboard.

1. Slide the SYSTEM switch to the setting you want to program (Heat or Cool).
   Throughout programming, the thermostat displays a flame (heating) or snowflake (cooling) to help you identify which mode you are programming. At the end of the Setting the Weekend Program, you are prompted to return to this step to program the opposite mode. The example shows a Cool setting.
   Note: To exit the programming mode at any time, press Hold (the thermostat saves your changes).
2. Set weekday Wake time and temperature.
   • Press Select four times. Press ▲ or ▼ to set Wake time.
     Note: Schedule times are programmable in increments of 15 minutes. For each press, the time increases or decreases by 15 minutes.
   • Press Select. Press ▲ or ▼ to set Wake temperature.
     Note: When setting the Weekday Program, the days MON TUE WED THU FRI display.
3. Set weekday Leave time and temperature.
   • Press Select. Press ▲ or ▼ to set Leave time.
   • Press Select. Press ▲ or ▼ to set Leave temperature.
4. Set weekday Return time and temperature.
   • Press Select. Press ▲ or ▼ to set Return time.
   • Press Select. Press ▲ or ▼ to set Return temperature.
5. Set weekday Sleep time and temperature.Press Select. Press ▲ or ▼ to set Sleep time.
   • Press Select. Press ▲ or ▼ to set Sleep temperature.
     IMPORTANT:
     Before pressing another key, continue with Setting the Weekend Program.

Setting the Weekend Program

Note: For initial programming, you must set the weekday schedule as shown in Setting the Weekday Program before you can access weekend programming.
If your weekday is already programmed, you can access weekend programming by pressing Select 12 times.

1. Set weekend Wake time and temperature.Press Select. Press ▲ or ▼ to set Wake time.
   • • The example shows a Cool setting.
   • Press Select. Press ▲ or ▼ to set the Wake temperature
     Note: When setting the Weekend Program, the day’s SAT SUN display.
2. Set weekend Leave time and temperature.
   • Press Select. Press ▲ or ▼ to set Leave time.
   • Press Select. Press ▲ or ▼ to set Leave temperature.
3. Set weekend Return time and temperature.
   • Press Select. Press ▲ or ▼ to set Return time.
   • Press Select. Press ▲ or ▼ to set the Return temperature.
4. Set weekend Sleep time and temperature.Press Select. Press ▲ or ▼ to set Sleep time.
   • Press Select. Press ▲ or ▼ to set Sleep temperature.
5. Press Select. End displays.
   After five seconds, your thermostat displays the current day, time, and temperature.
6. Return to Step 1., Setting the Weekday Program to program the opposite mode, (heating) or (cooling).
   Your weekday and weekend schedules are now programmed.
   Temporary Temperature Hold
7. Press ▲ or ▼ key twice to set a temporary temperature.
   Note: The temporary temperature setting remains in effect until the next program period. To cancel, press Hold twice and wait five seconds.

Indefinite Temperature Hold

The Hold key allows you to hold a temperature indefinitely. When Hold is active, Hld displays continuously.

1. Press Hold.
2. Press ▲ or ▼ key to set indefinite temperature setting.
3. To cancel, press Hold and wait five seconds.

System and Fan

Use the SYSTEM and FAN switches to change the settings.
System Setting
To select the desired system setting, slide the SYSTEM switch in the lower right corner of the thermostat.
SYSTEM settings control the thermostat operation as follows:

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

Heat and Cool Indicators

• Indicates a call for heating.
• Indicates a call for cooling.

Note: In the programming mode, the and indicate the system setting.

Fan Setting
To select the desired fan setting, slide the FAN switch in the lower-left corner of the thermostat.

FAN settings control the system fan as follows:

• Auto: Fan operates with equipment.
• On: Fan operates continuously.

Minimum Off-Timing

Your thermostat comes equipped with a minimum off-timer. At certain times during cooling, the system will not start up again for at least five minutes after it turns off (the compressor is off and  be heard). This occurs when you change the SYSTEM switch position while the compressor is off or when you change the temperature setting, causing the compressor to turn off. The minimum off-timer is also triggered during a power interruption and power restoration. You will know the minimum off time is in effect by flashing or on the display.

CAUTION
Equipment Damage Hazard. Can cause permanent damage to the compressor or other equipment. To avoid possible equipment damage, do not operate the cooling when the outside temperature is below 50°F (10°C). See equipment manufacturer instructions. To avoid possible compressor damage, allow the compressor to remain off for five minutes before restarting.

TROUBLESHOOTING GUIDE

Symptom	Possible Cause	Action
The display will not come on.	The thermostat is not being powered.	Check if the thermostat is mounted and latched on the wallplate-mount and latch the thermostat on wallplate. Check if the circuit breaker is tripped-reset the circuit breaker. Check if the fuse is blown-replace the fuse. Check if the system switch is in the Off position-set to Heat or Cool.
Temperature settings will not change (For example: cannot set the heating higher or the cooling lower).	The upper or lower temperature limits were reached.	Check that the temperature setpoints are within range: Heating: 50 ° to 99° F (10 ° to 37° C) Cooling: 50 ° to 99° F (10 ° to 37° C).

Symptom	Possible Cause	Action
Heating will not	No power to the	Check that the setpoint is above room
come on.	thermostat.	temperature-reset temperature or wait for
	System selection is	room temperature to fall.
	not set to Heat.	Check if the circuit breaker is tripped-reset
	Heating setpoint is	the circuit breaker.
	below room	Check if the fuse is blown-replace the fuse.
	temperature.	Check if the system switch at the equipment
		is in the Off position-set to Heat position.
		Wait five minutes for the system to respond.
Cooling will not	No power to the	Check that the setpoint is below room
come on.	thermostat.	temperature-reset temperature or wait for
	System selection is	room temperature to rise.
	not set to Cool.	Check if the circuit breaker is tripped-reset
	Cooling setpoint is	the circuit breaker.
	above room	Check if the fuse is blown-replace the fuse.
	temperature.	Check if the system switch at the equipment
		is in the Off position-set to Cool position.
		Wait five minutes for the system to respond.

Symptom	Possible Cause	Action
The system on the indicator    and    is lit, but no warm or cool air is coming from the registers.	Heating/cooling equipment turns on the fan when the equipment has reached the setpoint.	Wait a minute after seeing the flame or snowflake and then check the registers.
System on the indicator   or  is flashing	Minimum off-timer is in effect.	Wait five minutes until the minimum off-timer is complete.

LIMITED WARRANTY

Low Voltage Room Thermostats
This warranty is extended by American Standard Inc., to the original purchaser and to any succeeding owner of the real property to which the Thermostat is originally affixed, and applies to products purchased and retained for use within the U.S.A. and Canada.
If any part of your Thermostat fails because of a manufacturing defect within five years from the date of the original purchase, Warrantor will furnish without charge a new thermostat. Any local transportation, related service labor and diagnosis calls are not included.
This limited warranty applies to product installed on or after 10/1/2001 where product is manufactured after 1/1/2000. This limited warranty is not retroactive to any installations prior to 10/1/2001 or on product produced prior to 2000. THE LIMITED WARRANTY AND LIABILITY SET FORTH HEREIN ARE IN LIEU OF ALL OTHER WARRANTIES AND LIABILITIES, WHETHER IN CONTRACT OR IN NEGLIGENCE, EXPRESS OR IMPLIED, IN LAW OR IN FACT, INCLUD- ING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR PARTICULAR USE, AND IN N EVENT SHALL WARRATOR BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES
Some states do not allow limitations on how long an implied warranty lasts or do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation may not apply to you. This limited warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Parts will be provided by our factory organization or an authorized service organization in your area listed in the yellow pages. If you wish further help or information concerning this warranty, contact:
American Standard Inc.
Troup Highway
Tyler, TX 75711-9010
Attention: Manager, After Sales Support
CUSTOMER ASSISTANCE
If, after reading this guide, you have any questions concerning the operation of your thermostat, please call the Thermostat Customer Assistance Helpline at 1-800-500-2041.
For service, contact your local heating and cooling contractor.

REFERENCE

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American Standard ASYSTAT 340 Programmable Thermostat OWNER’S GUIDE

American Standard ASYSTAT 340 Programmable Thermostat OWNER’S GUIDE