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Programming

Programming

Features

A Note About Programmable Fan:

The programmable fan feature will run the fan continuously during any 

time period it is programmed to be on. This is the best way to keep the 

air circulated and to eliminate hot and cold spots in your building. If 

using 

IAQ

 mode, set fan to IAQ for any time period.

1. 

 Select 

HEAT 

or

 COOL 

with the 

SYSTEM

 key. 

      

Note: 

You have to program heat and cool each seperately. 

2.

  Press the 

MENU

 button (If menu does not appear first press 

      

RUN SCHED

).

3.

  Press 

SET SCHED

.  

Note:

 Monday is displayed and the

      

OCCUPIED

 text is shown. You are now programming the 

      

OCCUPIED

 time period for that day.

4.

  Time is flashing.  Use the            or              key to make your time 

      selection for that day’s 

OCCUPIED

 time period.  

     

 Note:

 If you want the fan to run continuously during this time

      period, select 

ON

 with the 

FAN 

key. If you want to use 

IAQ

 

      mode during this time period, select 

IAQ

 with the fan key.

5.

  Press 

NEXT.

6.

  The setpoint temperature is flashing.  Use the             or             key 

      to make your setpoint selection for that day’s 

OCCUPIED

 

      period.

7.

  Press 

NEXT.

8.

  Repeat steps 4 through 7 for that day’s 

UNOCCUPIED

 

      time period.

Monday:

Repeat steps 4 through 8 for the remaining days of the week.

To customize your 7 day 2 time period program schedule, follow 

these steps:

Temporary Hold: 

The thermostat will display 

HOLD

 and 

RUN SCHED 

on the bottom of the screen when you press the            or         

key. If you do nothing, the temperature will remain at this setpoint 

temporarily for 4 hours. The program setpoint will then replace the 

temporary setpoint.

Permanent Hold:

 With a temporary hold set, If you press the 

HOLD

 

key at the bottom of your screen, you will see 

HOLD

 appear below 

the setpoint temperature in the display. The thermostat will now 

permanently stay at this setpoint and can be adjusted using the  

           or            keys.

To Return To Program: 

Press the 

RUN SCHED

 key at the bottom of 

the screen to exit temporary and permanent holds.

Temporary & Permanent Hold Feature

Custom Program

Day of 

the Week

Events

Time

Setpoint 

Temperature

(HEAT)

Setpoint 

Temperature

(COOL)

Weekday

Saturday

Sunday

Wake/OCC1

Leave/UNOCC1

Return/OCC2
Sleep/UNOCC2

Wake/OCC1

Leave/UNOCC1

Return/OCC2

Sleep/UNOCC2

Wake/OCC1

LeaveUNOCC1

Return/OCC2

Sleep/UNOCC2

Occupied
Unoccupied

Occupied

Unoccupied

Occupied

Unoccupied

Set Program Schedule For Four Time Periods

1. 

 Select 

HEAT 

or

 COOL 

with the system switch. 

      

Note: 

You have to program heat and cool each separately. 

2.

  Press the 

MENU

 button (If menu does not appear first press 

      

RUN SCHED

).

3.

  Press 

SET SCHED

.  

Note:

 Monday-Friday is displayed and the

      

WAKE/OCC1

 icon is shown. You are now programming the 

      

WAKE/OCC1

 time period for the weekday setting.

4.

  Time is flashing.  Use the            or              key to make your time 

      selection for the weekday 

WAKE/OCC1

 time period.  

     

 Note:

 If you want the fan to run continuously during this time

      period, select 

ON

 with the 

FAN 

key. If you want to use 

IAQ

 

      mode during this time period, select 

IAQ

 with the 

FAN

 key.

5.

  Press 

NEXT.

6.

  The setpoint temperature is flashing.  Use the            or             key 

      to make your setpoint selection for the weekday 

WAKE/OCC1

      period.

7.

  Press 

NEXT.

8.

  Repeat steps 4 through 7 for the weekday 

LEAVE/UNOCC1

     

 time period, for the weekday 

RETURN/OCC2 

time period, 

      and for the weekday 

SLEEP/UNOCC2

 time period.

To customize your 5+1+1 Program schedule, follow these steps:

Weekday:

Repeat steps 4 through 7 for the Saturday 

WAKE/OCC1 

time period, 

LEAVE/UNOCC1

 time period, 

RETURN/OCC2

 time period, and for 

the Saturday 

SLEEP/UNOCC2

 time period.

Saturday:

Repeat steps 4 through 7 for the Sunday 

WAKEOCC1 

time period, 

LEAVE/UNOCC1

 time period, 

RETURN/OCC2

 time period, and for 

the Sunday 

SLEEP/UNOCC2

 time period.

Sunday:

(WAKE, LEAVE, RETURN, SLEEP or OCCUPIED 1, UNOCCUPIED1, OCCUPIED 2, UNOCCUPIED 2)

Programming

Summary of Contents for EWT-855

Page 1: ...to a flat wall 2 Use screws provided 3 Drywall anchors should be flush with the wall 4 Wires should be pushed into the wall Installation Tips The thermostat should be installed approximately 4 to 5 feet above the floor Select an area with average temperature and good air circulation Close to hot or cold air ducts That are in direct sunlight With an outside wall behind the thermostat In areas that ...

Page 2: ... to install this product can cause electrical shock or equipment damage Note In many heat pump systems with no emergency heat relay a jumper can be installed between E and W2 to turn thermostat into a single stage control for Emergency Heat Operation Thermostat Quick Reference The low battery indicator is displayed when the AA battery power is low If the user fails to replace the battery within 21...

Page 3: ...rmer Typical2H 2CSystem 2Transformer Typical3H 2Cor2H 1CHeatPumpSystem TypicalHeat OnlySystem TypicalHeatOnlySystemWithFan TypicalCool OnlySystem HEAT RELAY RC RH Y C W E G C R L2 L1 HOT FAN RELAY HEAT RELAY RC RH Y C W E G C R L2 L1 HOT FAN RELAY COMPRESSOR RELAY C R L2 L1 HOT RC RH Y C G Power supply Factory installed jumper Remove only when installing on 2 transformer systems Use either O or B ...

Page 4: ...You can adjust the filter change reminder from OFF to 2000 hours of runtime in 50 hour increments Tech Setup Steps Room Temperature Calibration 0 F This feature allows the installer to select the minimum run time for the compressor For example a setting of 4 will force the compressor to run for at least 4 minutes every time the compressor turns on regardless of the room temperature You can set the...

Page 5: ...t This feature allows you to display temperatures in either Fahrenheit or Celsius F or C F F for Fahrenheit C for Celsius You can select either a 12 or 24 hour clock setting 12 or 24 Hour Clock Select GAS for systems that control the fan during a call for heat Select ELEC to have the thermostat control the fan during a call for heat Fan Operation 90 78 12H 12 HOURCLOCK GAS ELE Cooling Temperature ...

Page 6: ...th the FAN key 5 Press NEXT 6 The setpoint temperature is flashing Use the or key to make your setpoint selection for that day s WAKE OCC1 period 7 Press NEXT 8 Repeat steps 4 through 7 for that day s LEAVE UNOCC1 time period for that day s RETURN OCC2 time period and for that day s SLEEP UNOCC2 time period To customize your 7 day 4 time period Program schedule follow these steps Monday Repeat ste...

Page 7: ...tpoint and can be adjusted using the or keys To Return To Program Press the RUN SCHED key at the bottom of the screen to exit temporary and permanent holds Temporary Permanent Hold Feature Custom Program Day of the Week Events Time Setpoint Temperature HEAT Setpoint Temperature COOL Weekday Saturday Sunday Wake OCC1 Leave UNOCC1 Return OCC2 Sleep UNOCC2 Wake OCC1 Leave UNOCC1 Return OCC2 Sleep UNO...

Page 8: ...on condensing maximum Dimensions of thermostat 4 7 W x 4 3 H x 0 9 D Specifications Features If the filter change reminder is enabled you will see a reminder in the display when your air filter needs changed The reminder will be shown in the display after your system has run long enough to require an air filter change Resetting The Filter Change Reminder When the reminder is displayed you should c...

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