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INSTRUCTION  FOR USE 

 

The FIAMMA  OT11  provides  the  user  with  a  graphic  LCD 

dot-matrix, a series of buttons in silicon rubber, and an LED 

indicator  located  below  a  button  plastic  transparent  to 

display  the  parameters  and  interact  with  the  heating 

system. Figure 1. 

The buttons have any versatile utilization depending on the 

selected menu. 

The use of buttons is facilitated by the indications with text, 

icons and other graphics that appear on the display. 

  

The  vertical  buttons  on  the  left  of  the  display  are  typically 

used  to  navigate  the  setup  menu  or  to  select  the 

parameters. 

The vertical buttons on the right of the display are used to 

vary  temperature  and  the  classical  function  increase  / 

decrease (+ / -). 

To  facilitate  the  change  of  set  values,  the  long  press  of 

these buttons accelerates the increase or decrease. 

 

The  horizontal  buttons  at  the  bottom  serve  to  confirm  or 

cancel the settings, or to enter and exit the submenus. 

The  center  button  to  used  for  special  functions  as  the 

unlock of the boiler. 

 

Under the center button there is an LED: 

 

LED  with  color  red  continuous:  error  or  no 

communication with the boiler; 

 

LED with color red intermittent: boiler lockout; 

 

LED with color yellow intermittent: anomaly; 

 

LED 

with 

color 

green 

continuous: 

the 

chronothermostat  is  resuming  work  after  a  power 

failure. 

 

The  most  frequently  used  functions  by  the  user  are 

available in the main menu. 

It is possible to quickly browse through the pages to set, for 

example,  environment  temperature  or  the  domestic  hot 

water temperature. 

The  first  time  or  after  a  reset  of  the OT11,  appears  the 

language menu, as shown in the figure below. 

Pushing buttton OK, you confirm the selection. 

 

This choice can be changed later, if necessary, through the 

"SETTING MENU". 

 

 

 

Then the current time can be entered. 

 

 

 

Also in this case the buttons to the left allow you to select 

the various menu items, while the right buttons are used to 

change the values, the OK button stores the settings while 

the ESC button allows you to continue without changing the 

data time. 

If  you  press  ESC,  the  subsequent  reconnection  of  the 

cronothermostat  (for  example  power  down)  you  will  again 

be  prompted  to  select  the  language  and  set  the  current 

time. 

 

 

 

 

 

 

 

 

Figure 1:

   description of the remote control unit

 

graphic display (LCD) 

hole for 

access to the 

reset button 

function buttons 

(the active command is indicated on the graphic display) 

multifunction button with LED 

buttons to 

increase and 

decrease 

temperatures and 

parameters 

buttons to select 

or change the 

function 

parameters 

Summary of Contents for OT11

Page 1: ...d the control board of the boiler takes place by means of a two wire cable the data are exchanged with the communication protocol compatible OpenTherm v3 0 Smart Power Mode Medium Power GENERAL TECHNICAL DATA FIAMMA design graphic LCD 128x64 pixel backlight timer 20 seconds LED for diagnostics signaling 7 variable function keys weekly programming 4 temperature levels T0 T1 T2 T3 resolution 0 5 C t...

Page 2: ...t boiler lockout LED with color yellow intermittent anomaly LED with color green continuous the chronothermostat is resuming work after a power failure The most frequently used functions by the user are available in the main menu It is possible to quickly browse through the pages to set for example environment temperature or the domestic hot water temperature The first time or after a reset of the...

Page 3: ...er is in stand by and has no problem Under the indication of the ambient temperature may be present in addition a line of text that provides information to the user in special cases such as the presence of error or the status of additional functions such as management of a system of solar panels integrated with the boiler and managed by the thermoregulation board Here there are the messages that m...

Page 4: ...t thermoregulation The management of the cronothermostat by the user is much simplified The functions are not distinct between the functions relating to boiler and functions relating to thermoregulation Pushing again button you switch to another option This option allows you to turn off the system temperature control environment and demand hot water operation are disabled The first level menu is c...

Page 5: ...u has a frame fixed The options previously seen remain displayed for 20 seconds then the display returns to the main screen which depends on the chosen operation mode manual automatic estate vacation off In this option however if the user does not push ESC or not push or the crhonothermostat continues to show the control panel with its solar collector and accumulation temperatures and pump status ...

Page 6: ... lowest temperature with T0 the chronothermostat meets the following constraint T0 T1 T2 T3 and automatically resizes the temperatures Choosing the option Day program you enter in the following screen At the top of the screen you select the day and at the bottom of the screen displays the day program Pressing the and buttons you can select the day For example suppose you want to program the day Mo...

Page 7: ...emperature It is a regulation that requires a specific knowledge of the heating system installed and is reserved therefore for advanced users make changes without knowledge of the techniques of temperature control is not recommended The chronothermostat allows you to choose among four methods of temperature control environment Proporzional On Off Outside temperature compensation Outside temperatur...

Page 8: ...circuit heating according to the formula Ti Tap Te hc Tap when Ti circuit heating setpoint Tap room temperature setpoint Te external temperature measured hc dispersion coefficient In this formula correspond to the curves shown in Fig 2 Outside temperature compensation with mix This method of temperature control is the same climatic compensation just described with a correction dependent on the amb...

Page 9: ... status flags CH OT S P Control setpoint circuit heating C Solar cfg Solar configuration Solar sta Solar status Storage Solar storage temperature C Collector Solar collector temperature C The values displayed are updated regularly by the chrothermostat every few seconds To force loading you can press the middle button transparent and get an instant update Pushing ESC instead to return to the main ...

Page 10: ...een chronothermostat and thermoregulation board master side In particular next to the data the following symbols appear correct data exchange T timeout RX error R RX error generic error unknown P parity error E syntax error Through the Restart command is possible to reconfigure the chronothermostat after interventions hardware software occurred without disconnecting the power adapter on thermoregu...

Page 11: ...6 8 11 Table 1 Correspondence between the connector pins of the serial cable Figura 3 Position connector J2 on C S for connection with a GSM modem Displaying modem status In the line on central text of LCD display you can check the status of the modem Particularly in the initial phase if the modem is detected if the SIM card is active and the GSM network is present the screen will automatically ap...

Page 12: ...ONNECTION TO THE BOILER INSTALLATION INSTRUCTIONS Respect National and European standards EN 60335 1 pr EN50165 regarding electrical safety Before turning on check the cables incorrect wiring may damage the devices and compromise safety Connect and disconnect the control system only in the absence of voltage Avoid exposing the system to dripping water INSTALLING THE CHROTHERMOSTAT ON THE WALL Firs...

Page 13: ... 370049 Villa Bartolomea VR ITALY Tel 39 0442 659028 Fax 39 0442 659045 http www fiammagiro com E mail info fiammagiro it 22 05 2017 Subject to amendments without notice 140 0 90 0 1 2 30 8 Figure 6 external dimension 9 50 5 00 9 00 2 20 5 00 10 40 9 50 18 25 17 15 ø 3 80 Figure 5 fixing holes of the base back view NOTE FIAMMA OT11 is available in white shown on page 1 or black as the image ...

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