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10/13 

 

21689_r03

 

 

 

The  chronothermostat  provides  the  functions  of  reading 

and writing of the TSP, as shown above. 

Pushing the 

 and 

 buttons, you can move the index "idx"  

and pushing SET button the next page appears. 

 

 

 

On this page using the + and - buttons,  you can enter the 

desired value of the TSP. 

If  the  thermoregulation  board  does  not  provide  the  writing 

of this TSP (read only) changes will not take effect. 

 

The fourth items in the "PARAMETERS MENU" allows the 

consultation of the "Fault History Buffer" (FHB) of the boiler, 

i.e.  the  storage  the  lock  codes  which  may  be  useful  for 

diagnostics. 

 

 

 

This  function  cannot  be  managed  of  the  thermoregulation 

board. 

The  values  are  displayed  in  groups  of  four  per  page  and 

you can scroll through pages with 

 and 

 buttons. 

The  chronothermostat  also  provides  in  this  case  the 

maximum number of parameters 255, with idx ranging from 

000 to 254. 

 

The last items of the "PARAMETERS MENU", contained in 

the  second  menu  page,  are  typically  used  for  technical 

work on the chronothermostat. 

 

 

 

In particular, "OT monitor" is dedicated to the diagnosis of 

OpenTherm  communication,  as  it  makes  visible  the  data 

exchanged 

between 

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 thermoregulation. 

Pushing  the  button  "Restart"  is  equivalent  to  disconnect  

the connector of communication. 

The  submenu  "RS232  Monitor"  is  shown  in  the  following 

section, remote management via GSM-SMS.

 

 

 

REMOTE MANAGEMENT VIA GSM-SMS 

 

Connecting a GSM modem 

The 

FIAMMA

  OT11  chronothermostat  allows  the  user  to 

remotely manage some functions of the heating system by 

sending and receiving SMS messages. 

The boiler responds at the set number in case of anomaly 

status and lockout status. In order to use the GSM network 

is necessary to connect external GSM modem; 

The  GSM  modem  must  have  its  own  power  supply  and 

must be connected to 

FIAMMA

 OT11 with a dedicated cable. 

To

 

install  the

 

GSM  modem

,  refer 

to  the  instructions

 

provided by the

 

manufacturer

 

of the

 

modem itself

 

 

WARNING! 

To  avoid  connecting  the  signal  ground  GND  of  the 

serial cable! 

Necessary to isolate the casing of the GSM modem, if 

this is connected electrically to the signal GND. 

 

 

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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