FINDER 1C.81 PROGRAMMABLE THERMOSTAT

TECHNICAL CHARACTERISTICS

• Power: 2 x 1.5 V AAA alkaline batteries
• Settable temperature range – WINTER: (+5…+37)°C
• Settable temperature range – SUMMER: (+5…+37)°C
• Settable temperature range – FROST PROTECTION: (+2…+8)°C
• Temperature differential ΔT: (0.1…0.9)°C
• Supervisor: Yes
• Calibration: Yes
• Resolution: 0.1°C
• Tolerance: +/–0.5°C
• Display: Touch screen
• Backlight: Yes
• Buzzer: Yes, for audible key feedback and function signals
• The minimum time interval for programming: 30 minutes
• Daylight saving time: User-selectable automatic time adjustment function
• Programmable thermostat lock: Yes, with PIN code
• NFC: Yes
• Output: 5 A 250 V AC SPDT relay (potential free contact)
• Installation: Wall mounted
• Protection rating: IP20

ADDITIONAL NOTES
The programmable thermostat produces three different audible signals:

• SHORT BEEP: When a button is pressed
• 3 LONG BEEPS: To confirm a saved parameter
• TRILL SOUND: Error

INSTALLATION

SAFETY INSTRUCTIONS

Electrical equipment must only be installed and assembled by expert personnel.
Before connecting the programmable thermostat, ensure that all associated utilities (pumps, valves, boiler, etc.) are not connected to the supply and that the load is within the ratings marked on the thermostat.

LOCATION
Install the programmable thermostat approximately 1.5 m above the floor, and away from sources of heat (radiators, sunlight, cookers), and from doors and windows.

CLEANING
Clean with a damp cloth only.

IMPORTANT
Do not overtighten the screws when installing, as this may warp the base and compromise the functions of the touch screen.

CONNECTION DIAGRAM

BATTERY

Fit the batteries in the compartment, ensuring that the polarities are correct as indicated.

IMPORTANT

• Fitting the batteries with the wrong polarity may damage the programmable thermostat
• If the battery charge drops below the minimum permissible level, the programmable thermostat switches to the OFF state and the relay contact opens
• Remove the batteries if the programmable thermostat is not used for a prolonged period of time
  The programmable thermostat has the following three different low-battery warning modes:
• Low battery icon displayed STEADY: the functionality of the programmable thermostat will soon be compromised
• Low battery icon FLASHING: programmable thermostat requires imminent battery replacement
• Messages flash in alternation, the programmable thermostat switches to the OFF state and the relay contact opens

NOTE
The correct date and time settings are maintained if the batteries are removed and replaced within one minute with the low battery icon displayingSTEADY

FIRST TIME USAGE

After fitting the batteries, the display shows all the icons and the software version for a few seconds and then prompts the user to set the time and date. Use the keys to modify the value and press OK to confirm. The main screen is then displayed

• A ON/OFF
• B Active icons
  • air conditioning ON
  • heating ON
• C Temperature in °C
• D Access programming mode
• E Set time and date
• F Day of week (indicated as a number from 1 to 7)
• G Lock/unlock display or thermostat
• H Time/temperature profile
• I MANUAL mode ON/OFF
• L Set temperature levels

NOTE
Touch the center of the display to view the time and switch on the backlight.

DESCRIPTION OF KEYS

• Programmable thermostat ON/OFF
• Setting the 3 temperature levels
• 30-minute delay key (if the function is enabled in the advanced menu)
• Activate MANUAL mode. Press and hold for 3 sec. to programme MANUAL TIMER MODE (vacation)
• Access programming menu
• Press and hold for 3 seconds to activate PARTY FUNCTION
• Press and hold to activate or deactivate the display lock
• Set time and date
• Press and hold for 3 seconds to access the advanced menu
• Increase
• Decrease
• OK Confirm
• Go back to the previous setting Press and hold for 3 seconds to exit the function
• Go back to the previous setting. Press and hold for 3 seconds to exit the advanced menu

• Indicates if TIME and DATE setting mode is active of if the current time is displayed
• Heating ON (in WINTER mode)
• Air conditioning ON (in SUMMER mode)
• Frost protection mode active
• Data transfer
• Shows setting limits in the supervisor menu
• Low batteries
• Start delayed by 30 minutes
• Unit of measurement (degrees Celsius)
• ΔT Temperature differential
• Locked display or thermostat
• 24-hour time/temperature profile

• Days of week
• Days of the week selected

SET TIME AND DATE

• Pressto set the time and date.
• The following values are shown in the order indicated:
• HOURS / MINUTES / DATE / MONTH / YEAR
• Use the or keys to modify the flashing values.
• Press OK to confirm and move to the next screen.
• Press to go back or exit the menu.

EXAMPLE

• Press.
• The HOURS value flashes.
• Use the orbuttons to set the correct hours value.
• Press OK to confirm the hours value entered and set the MINUTES value
• Press OK to confirm the minutes value entered.
  • Now set the DATE
• Press OK to confirm the DATE value and set the MONTH
• Press OK to confirm the MONTH value and set the last two figures of the YEAR
• Press OK to confirm and exit the TIME / DATE setting menu. The main screen is displayed.

NOTES

• The thermostat has approximately 1 minute of reserve power after the batteries are removed.
  After this period, the time, date, and year settings are lost.
• Once the date is set, the correct number for the day of the week is set automatically according to an internal calendar
• Pressto go back to the previous step
• Press and hold for more than 3 seconds to return to the main screen and save all values confirmed previously by pressing OK

MANUAL SETTINGS

• From the main screen, press.
• The manual mode temperature value set previously is displayed.
• To modify the setting, press  to increase or to decrease the value.
• Pressto exit this mode

NOTE
The current temperature reading is displayed if there is no user input for 3 seconds.

DISPLAY LOCK

• This function locks the display to prevent accidental changes to the settings caused by unintentionally touching the screen.
• Press and hold the button to activate the function.
• The icon appears on the display and the unit sounds 3 beeps to confirm activation.
• Press and hold for 3 seconds to deactivate the function

NOTE
The PIN set in the advanced LOCK menu must be for the DISPLAY LOCK function to be available (see page 28)

PROGRAMMABLE THERMOSTAT LOCK (with PIN)

This advanced function may be used to lock the thermostat. To activate the function, set a 3-figure PIN code, which will be requested each time the user wishes to lock or unlock the thermostat.

To set the PIN:

• Turn the thermostat off by pressing
• Press and hold SE for 3 seconds to access the ADVANCED MENU
• Press the button OK repeatedly to access the screen for entering the desired PIN code

Use the andkeys to set the desired PIN code number, then press OK to confirm. After setting the PIN, exit the advanced menu by pressing OK repeatedly or by pressing and holding SET for 3 seconds, until the

beep is heard confirming that the PIN code has been saved correctly. When the thermostat is switched on again, the main screen is displayed

To activate the thermostat lock with a PIN code, press and hold for 3 seconds. The following screen is displayed

Use the andkeys to enter the PIN number set previously in the advanced menu, then press OK. The unit beeps 3 times to confirm that the thermostat is locked and the following screen is displayed

• To unlock the thermostat, press and hold for 3 seconds.
• The value is displayed.
• Enter the PIN number and press OK to confirm.
• The unit beeps 3 times to confirm that the thermostat is unlocked.

IMPORTANT

• After three failed unlock attempts, no further PIN entry attempts may be made for 20 seconds.
• The message is displayed.

NOTE

• The display lock remains active even if the batteries of the thermostat are removed and refitted.
• Enter the emergency unlock code 513 if you have forgotten the PIN.
• After unlocking the unit with the emergency unlock code 513, it is strongly recommended to access the advanced menu and check and/or modify the user-defined PIN set previously

SET TEMPERATURE

• Used to set the three 3 temperature levels (LOW-NIGHT-COMFORT).
• Press T .
• The first level value flashes. Set the desired LOW-temperature value using and.
• Press T .
• The second level value flashes. Set the desired NIGHT temperature value using and.
• Press T .
• The third level value flashes. Set the desired COMFORT temperature value using and.
• Press T to return to the main screen.

NOTE
The temperature level sequence is reversed for SUMMER mode. i.e. The third level represents the lowest temperature.

PROGRAMMING

• Press PRG to access the programming menu.
• PROGRAMMING DAY / S
• The day value 1(Monday) flashes.
• Press orto change the day selection
• 
• Select the desired day/s (e.g. 2, 3, and 4) with OK.
• The selected days are highlighted against a black background.
• Press on the profile to programme hours/temperatures.

PROGRAMMING INDIVIDUAL HOURLY SETPOINT TEMPERATURES FOR 24 HOUR PERIOD

• The HOUR bar 0 flashes on the hours/temperature graph.
• Use and to select the temperature level.
• Press OK to confirm and move to the next hour.

Repeat the same procedure for each hour.
NOTE

• Press to go back to the previous setting.
• Press and hold the button for 3 seconds to exit programming mode and save all settings confirmed previously by pressing OK .
• Once the temperatures are set for all 24 hours, the unit beeps three times to confirm that the settings have been saved.
• Only the remaining days are now displayed.
• Now programme the remaining days, following the procedure described above, or pressto exit the menu.

The main screen is displayed.

NOTE

• Press and holdfor 3 sec. at any time to exit programming mode and return to the main screen. All parameters confirmed previously by pressing OK are saved.
• To review the settings programmed for a specific day, press PRG in the main menu and scroll between 1 and 7 with the arrow keys. Selecting a day displays the respective profile programmed
• If the DELAYED START function is enabled in the advanced menu, the button is displayed, which may be used to delay the start of the selected hour period by 30 minutes (see pages 22-30).

COPY FUNCTION

• Press PRG to access the programming menu.
• Day 1(Monday) flashes. Press orto change the selection.
• For example, to copy the program settings for day 2 into days 3 and 4, select the days by pressing OK, selecting the day you want to copy (in this case 2) first.
• The selected days are highlighted against a black background.
• Now press the time/temperature profile.
• The first-hour bar in the profile flashes
• Now press and holdfor 3 seconds.
• The unit beeps three times to confirm that the program has been copied

TIMED MANUAL MODE (vacation)

This function may be used to maintain a temperature value for a period of time set by the user. Once the set period of time has elapsed, the unit returns to the main screen.

• From the main screen,
• Press and hold for 3 seconds.
• Use the and keys to set the hour value of the time at which the function will end.
• Press OK to confirm, then set the minute value with the same procedure.
• Now follow the same procedure to set
  the date
  the month
  and the year
• After pressing OK to confirm, use the andbuttons to set the desired temperature
• After setting the temperature and pressing OK to confirm.
  The thermostat starts operating in timed manual mode, and a cycling animated graphic is shown on the right-hand side of the display to indicate that the function is active

NOTE

• The display shows the measured temperature, not the set temperature when this function is active. To view or modify the set time, press. Then press OK repeatedly to reach the screen with the value you want to modify.
• Use the and buttons to modify, then press OK to confirm and exit the menu.
• Press to deactivate the function while it is still active.
• The main screen is displayed.

PARTY FUNCTION

This function may be used to temporarily modify the set temperatures. From the main screen, press and hold PRG for 3 seconds

• The display shows the profile for the current day, with the current hour bar flashing (hour bar 8 in this example).
• Use and to modify the temperature.
• Press OK to confirm and move sequentially onto the next bar to the right, to set the other hours in the day, or press to go back to the previous value.
• After modifying as desired, simply press no other keys to activate the program.
• The function starts after a few moments, with a cycling animated graphic shown on the display to indicate that the function is active.

Only the modified hour bars are displayed while the function is active.

NOTE

• The modification is only effective for up to 24 hours, after which the original program is restored.
• The main screen is displayed again once the function ends.
• Press at any time to exit the function. To view or modify the profile, simply press PRG and repeat the modification procedure described previously.

FROST PROTECTION FUNCTION

• The frost protection function is active when the thermostat is set to WINTER mode and is off.
• This function protects the system against damage caused by very low temperatures.
• When the set temperature threshold is reached, the function is activated and the icons appear on the display.
• Press the ON key at any time to turn the thermostat on and display the main screen.

DELAYED START

• This function may be used to delay the start by 30 minutes after the activation time indicated by the hour bar.
• To activate the function, access the advanced menu and enable delayed start (see page 30).
• From the main screen, press PRG. Select the day or days with, and press OK to confirm.
• Highlight the desired hour and press to delay the start by 30 minutes.
• The symbol ‘+30’ is displayed for the selected hour.
• The symbol ‘+30’ is displayed while the thermostat is operating normally
• Press and holdfor 3 seconds to exit programming mode.
• The unit beeps 3 times to confirm that the settings have been saved.

ADVANCED MENU

The advanced menu may be used to personalize the setup of the thermostat.

1. SUMMER – WINTER MODE
2. FROST PROTECTION FUNCTION
3. TEMPERATURE DIFFERENTIAL
4. PUMP ANTI-SEIZE FUNCTION
5. DAYLIGHT SAVING SETTINGS
6. PROGRAMMABLE THERMOSTAT LOCK (with PIN)
7. ENERGY SAVING E1
8. ENERGY SAVING E2
9. DELAYED START
10. RESET

To enter the advanced menu, press from the main screen and switch off the thermostat. Press and hold SET for 3 seconds.

SUMMER – WINTER MODE
One of the following screens is displayed

• The icon indicates winter mode (heating), while the icon indicates summer mode (cooling). Use the and keys to set the desired mode. Press OK to confirm and go to the next menu.
• To exit the menu, press SET or press OK repeatedly until the OFF screen is displayed.
• If any settings were modified, the unit beeps 3 times to confirm that the changes have been saved

FROST PROTECTION FUNCTION

• After setting Summer or Winter mode, press OK to view the frost protection function screen.
• Set the desired temperature within a range from 2°C to 8°C with the and keys.
• Press OK to confirm and go to the next menu
• Press SET to go back to the previous menu, or exit the advanced menu by pressing and holding SET for 3 seconds or pressing OK repeatedly until the OFF screen is displayed. If any settings were modified, the unit beeps 3 times to confirm that the changes have been saved.

TEMPERATURE DIFFERENTIAL
After confirming the desired frost protection temperature with OK, the following screen is displayed.

• The temperature differential setting is used to set the thermostat correctly for the type of system to be controlled.
• Set the temperature differential within a range from 0.1°C to 0.9°C with the and keys.
• Press OK to confirm and go to the next menu.
• Press SET to go back to the previous menu, or exit the advanced menu by pressing and holding SET for 3 seconds or pressing OK repeatedly until the OFF screen is displayed. If any settings were modified, the unit beeps 3 times to confirm that the changes have been saved.

PUMP ANTI-SEIZE FUNCTION
After programming the temperature differential, press OK to display the following screen

The pump anti-seize function makes the thermostat function as an on-off timer. With a value between 1 and 99 HOURS set for the function, the programmable thermostat closes the relay contact for a period of 30 seconds at each time interval set.

Example:

• If a value of 48 (48 hours = 2 days) is set with the keys and confirmed by pressing OK, the thermostat closes the relay contact for 30 seconds once every 2 days.
• When the function is enabled in the menu, the timer starts from the last time the relay contact was switched off.
• Press SET to go back to the previous menu, or exit the advanced menu by pressing and holding SET for 3 seconds or pressing OK repeatedly until the OFF screen is displayed.
• If any settings were modified, the unit beeps 3 times to confirm that the changes have been saved.

DAYLIGHT SAVING SETTINGS
This function configures the thermostat to:

• change the clock for daylight saving time automatically (dat1)
• not change the clock for daylight saving time automatically (dat0)
• set day “1”, for example, as Monday or Sunday (dat2)

The following screen is displayed:

• By pressing OK to confirm, the thermostat changes the clock for daylight saving time automatically.
• Set this value to (zero) with the keys 0 to disable automatic clock adjustment for daylight saving time and change the clock manually.
• Set the value to 2 with the and keys to enter the day of the week manually with the TIME and DATE keys.
• Press OK to confirm and go to the next menu.
• Then exit the advanced menu and modify the day 1 setting as follows:
  • Press and hold SET for 3 seconds (the OFF screen is displayed).
• Press  to turn the thermostat on.
• Press to view the hours and minutes and then the week bar.
• Use the and keys to select the correct day.

For example:
If the current day is Wednesday and you want to set Sunday as day 1 (start of the week), select 4 on the display and press OK to confirm.

NOTE

• Only one of the three settings may be configured. If this parameter is set to 1 or 0, the first day of the week is set as Monday by default.
• If the parameter is set to 2, the first day of the week may be selected but the clock will not be adjusted automatically for daylight saving time.

LOCK FUNCTION (with PIN)

This menu option may be used to enable a LOCK function protected by a numerical access code to prevent tampering (see page 12).
From the advanced menu, press OK repeatedly to view the following screen:

• To set the display lock only, set 000 as the PIN with the andkeys.
• To set the PIN-protected thermostat lock function (to prevent tampering), set a PIN number between 001 and 999.
• After enabling the lock function, from the main screen, press and hold for 3 seconds to lock the display (see page 11), or press and hold for 3 seconds, enter the PIN set previously, then press OK to confirm to activate the anti-tampering lock (see page 12).
• Perform the same procedure to unlock.

NOTE
Enter the emergency unlock code 513 if you have forgotten the PIN.
After unlocking the unit with the emergency unlock code 513, it is strongly recommended to access the advanced menu and check and/or modify the user-defined PIN set previously.

ENERGY SAVING

ENERGY SAVING E1
When the Energy Saving E1(ECO1) function is active, the thermostat automatically optimizes the operation of the system – specifically, using an internal mathematical algorithm to compensate for inertia and adjust activation intervals and temperature settings appropriately to improve perceived comfort. This function also significantly reduces energy consumption. Once in the advanced menu, press OK repeatedly to reach the E1 function. Use the and buttons to select the following values as desired.

• E1 = 0 Function off
• E1 = 1 Function on
• E1 = 2 Function on if the heating system is equipped with zone selector valves with opening times greater than 10 seconds and less than 90 seconds

NOTE
This function is not recommended for forced ventilation heating systems (e.g. fan coil).

ENERGY SAVING E2

• With the Energy Saving E2 (ECO2) function active, the thermostat determines how long it takes the ambient air to reach the desired temperature.
• This entirely automatic function adjusts the activation intervals, anticipating and shortening activation times as necessary to save energy.
• If activation times were set manually, in some cases it may be necessary to anticipate/shorten activation times significantly to reach the desired temperature at the desired time.
• This function also takes the season, insulation and heat losses into account, adjusting and shortening activation times accordingly. Example. If it takes 1.5 hours to increase the temperature by 4°C in January but only 40 minutes in March, the ECO2 function will take this time into account.

NOTE
When the thermostat is automatically anticipating/shortening activation times (relative to the programmed hour period), the symbol is displayed in the main menu

NOTE
When the E2 function is activated, the thermostat takes a few days to monitor ambient conditions before the function is fully effective.

DELAYED START

This function is used to delay the start by 30 minutes after the programmed hour period.
The following screen is displayed after the ENERGY SAVING E2 menu:

• Press one of the two arrow keys to enable the function, and press OK to confirm
• To exit the advanced menu, press OK repeatedly or press SET until the unit sounds three beeps confirming that the modification has been saved.
• The thermostat is now off.
• Press to switch the thermostat on, and configure the settings as indicated on page 22.

RESET
Used to restore all the original factory settings.

• Use the and keys to set.
• Press OK to confirm. The thermostat switches off completely and then restarts, displaying the software version and then the main screen.
• The unit has now been reset and all factory settings have been restored.

NOTE
Resetting does not cancel the time and date.

SUPERVISOR FUNCTION

• With the unit OFF, press and hold in the center of the display for a few seconds to access the “SUPERVISOR” configuration function. This function is used to set the maximum and minimum temperatures usable for different seasons, in both heating and air conditioning modes.
• Setting the “SUPERVISOR” lock PIN makes it no longer possible to select Summer and Winter modes in the advanced menu, and impedes access to the calibration function.
• The access code is NOT requested when the supervisor setup function is accessed for the first time.
• If a PIN (other than “000”) is configured, the system requests the code to allow access.
• If the wrong code is entered, the message ERR is displayed for a few seconds and the unit switches OFF again.
• After three failed unlock attempts, no further PIN entry attempts may be made for 20 seconds.
• The message Err remains on the display.

IMPORTANT

• If lost, the PIN code CANNOT be recovered or reset, even by resetting the thermostat.
• It is strongly advisable to write the access code down and keep it in a safe place.

NOTE

• Using the RESET function with SUPERVISOR PIN number = 000 restores ALL factory settings, including the maximum and minimum temperature values configured with the SUPERVISOR function.
• Using a SUPERVISOR PIN number other than zero resets ALL settings except for the values configured with the SUPERVISOR function.

SUPERVISOR PIN number “000”
With the unit OFF, press and hold in the center of the display for a few seconds, then select SUMMER/WINTER mode

• Set the maximum user-settable temperature value
• Set the minimum user-settable temperature value
• If required, enter a lock code

SUPERVISOR PIN number other than “000”
With the unit OFF, press and hold in the center of the display for a few seconds. Enter the code with the arrows (if a code was set previously) then press OK.

• Select SUMMER/WINTER mode
• Set the maximum user-settable temperature value
• Set the minimum user-settable temperature value
• If required, enter a lock code

CALIBRATION

• The thermostat is calibrated in the factory.
• Should it be necessary to modify the temperature value measured and shown on the display, proceed as follows.
• From the main screen, press and hold the OFF button for 4 seconds.
• The screen is displayed, followed by
• Use the and keys to set the desired value, then press OK to confirm the modification and exit calibration mode.
• If no other keys are pressed, the unit exits the menu automatically after a few seconds and returns to the main screen.
• To restore the factory settings, access the advanced menu and reset the thermostat.

NFC FUNCTION

• The thermostat may be programmed from a smartphone with NFC technology.
• Enable NFC on your smartphone.
• Hold the smartphone close to the thermostat as shown in the image.
• The smartphone will be directed to Google Play Store, where the appropriate app can.

After downloading the APP, DO NOT move the smartphone away from the unit while communicating with/programming the thermostat
IB1C810107LEN – 12/16 – FINDER S.p.A. – 10040 ALMESE (TO) – ITALY

Reference

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FINDER 1C.81 PROGRAMMABLE THERMOSTAT Instruction Manuals

FINDER 1C.81 PROGRAMMABLE THERMOSTAT Instruction Manuals