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L3722C 7−DAY PROGRAMMABLE THERMOSTAT

6AM

NOON

6PM

MID

6AM

NIGHT

A

B

D

A

B

D

A

B

D

A

B

D

A

B

C

D

A

B

C

D

A

B

C

D

C

C

C

C

SATURDAY PROGRAM: 72°

68°

64°

SUNDAY PROGRAM: 72°

68°

64°

FRIDAY PROGRAM: 72°

68°

64°

THURSDAY PROGRAM: 72°

68°

64°

WEDNESDAY PROGRAM: 72°

68°

64°

TUESDAY PROGRAM: 72°

68°

64°

MONDAY PROGRAM: 72°

68°

64°

Figure 11. 7 Day Program Example

NOTE − Pressing the ENTER button during the following
programming steps, saves and exits to the HOME screen.

To program events and temperatures, perform the follow-
ing steps.

1. Press and release the PROG button. "MO" (Monday),

"AM 6:00", period "A", "COOL SETPOINT 78", and
"HEAT SETPOINT 70" are displayed. "AM 6" flashes.

2. Use the Up/Down arrow buttons to select the desired

hour; press the PROG button when the desired hour
is reached; use the Up/Down arrow buttons again to
select desired minute. The selected hour/minute is
when the program will start. Press the PROG button.

3. Use the Up/Down arrow buttons to select the desired

heat setpoint; press the PROG button.

4. Use the Up/Down arrow buttons to select the desired

cool setpoint; press the PROG button.

5. Repeat steps 1 − 4 for Monday, periods B, C, and D.
6.

COPY A PROGRAM

 − If the program entered for

Monday is satisfactory for other days of the week, do
the following to repeat the same program for other
days:

A

Press the PROG button, then press the COPY
button. The display clears the screen except for
Copy from MO with MO" flashing. Press the
COPY button again to copy Monday’s program.

B

The display changes to Copy to MO". Use the ar-
row buttons to scroll to the desired day where you
want the same program as Monday. Press the
COPY button.

C

Repeat steps A and B for as many days as you
want the same program.

Heat

Prog

Fan

Settings

Cool

Day/Time

Hold

Enter

(DOOR
OPEN)

Auto

Copy

(outside)

Copy from MO

Figure 12. Copy a Programmed Day to Another

Day

7. Repeat steps 1 − 5 to program different times and tem-

peratures for days not yet programmed.

FAN − Controlling the Fan Operation

Use the FAN button to select either continuous fan mode or
auto fan mode.

To change from continuous to auto fan mode (or vice ver-
sa), press the FAN button. Note whether a fan icon in the
FAN box is present (indicating that the fan is running) or not
(fan not running).

If continuous fan mode is enabled (ON displayed in FAN
box − see figure 13), the fan will run continuously regard-
less of whether the heating or cooling equipment is run-
ning.

Heat

Prog

Fan

Cool

Day/Time

Hold

Auto

Copy

i0:30

72

Figure 13. Using Fan ON

If auto fan mode is selected (AUTO displayed in FAN box −
see figure 14), the fan will only run when the heating or
cooling equipment is running.

Heat

Prog

Fan

Cool

Day/Time

Hold

Auto

Copy

i0:30

72

Figure 14. Using Fan AUTO

Summary of Contents for ComfortSense L3722C

Page 1: ...rogram 6 FAN Controlling Fan Operation 5 Displaying Outside Temperature 6 SETTINGS Filter Maintenance Reminder 6 Service Indicator 6 Thermostat RESET 6 Removing Installing Thermostat 7 Default Thermostat Settings 7 Thermostat Output Table 7 Technical Specifications 7 General These instructions are intended as a general guide and do not supersede local codes in any way Consult authorities having ju...

Page 2: ...seconds or the HOME screen will re turn Heat Prog Fan Settings Cool Day Time Hold Enter DOOR OPEN Auto Copy Outside Figure 3 Thermostat Buttons When an Arrow HOLD HEAT or COOL button is pressed SETPOINT and the temperature setting appears for 15 seconds If desired start making changes within 15 sec onds or the HOME screen will return The backlight will turn off 15 seconds after the HOME screen rea...

Page 3: ...during a demand NOTE Heating equipment is activated for at least 3 min utes if no buttons are pressed during the demand interval COOL Using the Cool Mode Enabling and Disabling Cool Mode Use the COOL button to enable or disable cool mode as desired If the thermostat is in heat or off mode cool mode is enabled when the COOL button is pressed This is indi cated by COOL on the right side of the displ...

Page 4: ...oint is displayed to the right of the actual room temperature Each button press adjusts the setpoint up or down by 1 degree After the desired setpoint is reached the HOME screen will reappear after about 15 seconds Permanent Hold Mode At any time the program is running from the HOME screen set a permanent hold program override by press ing the HOLD button see figure 9 The thermostat now functions ...

Page 5: ...g to repeat the same program for other days A Press the PROG button then press the COPY button The display clears the screen except for Copy from MO with MO flashing Press the COPY button again to copy Monday s program B The display changes to Copy to MO Use the ar row buttons to scroll to the desired day where you want the same program as Monday Press the COPY button C Repeat steps A and B for as...

Page 6: ...onds after the final arrow button press OR press the ENTER button at any time to store any changes and exit to the HOME screen After either programmed interval has elapsed the remind er will be displayed as shown in figure 17 COOL OFF AUTO EMG HEAT I0 26 PROG A B C D HOLD FAN ON AUTO FILTER SERVICE MAINTENANCE 76 ROOM MO AM PM COOL OFF AUTO EMG HEAT FAN ON AUTO FILTER SERVICE MAINTENANCE 76 Servic...

Page 7: ... is above setpoint 0 5F but below setpoint 1 5F AND 30 minute upstage timer HAS NOT expired With a LARGE cool demand temperature is above setpoint 1 5F OR 30 minute upstage timer HAS expired Default Thermostat Settings Default thermostat settings are in table 3 and the default program is shown in table 4 Table 3 Default Thermostat Settings Mode Heat Perm Hold Heat Setpoint Perm Hold 70 F or 21 C C...

Page 8: ...me elapsed time between any furnace activation next furnace activation 6 minutes Minimum elapsed time between any compressor activa tion and the next compressor activation 6 minutes NOTE All protection timers except the compressor OFF timer can be over ridden if a heating or cooling demand is initiated or terminated using the UP DOWN HEAT or COOL buttons Equipment Protection Override Both the mini...

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