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   EN   

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9

   

P

AR

D

ESCRIPTION

 

01 

C

ALIBRATION 

It  is  possible  to  calibrate  the 

transmitter temperature sensor by entering the 01 
parameter.  On  the  display  will  appear  only  the 
temperature.  Use  the  encoder  to  increase  or 
decrease  the  temperature.  Press  the  encoder  to 
enter  the  new  value.  From  now  the  transmitter 
uses  the  new  value  as  current  room  temperature. 
Please note that for the calibration it is necessary 
to have a second thermometer that will be used as 
master.  This  operation  is  suggested  only  if  the 
thermostat  is  fixed  in  a  non-appropriate  position, 
therefore it is necessary to modify the value on the 
display to be according the real room temperature. 

02 

F

ROST  PROTECTION  TEMPERATURE 

The  weekly 

room thermostat has an internal anti-frost function 
that switches on the boiler (only when the boiler is 
properly  set  to  allow  the  room  thermostat  to 
activate/deactivate  the  boiler,  i.e.  boiler  in  winter 
mode)  if  the  room  temperature  drops  below  the 
selected temperature. This function is active all the 
time  whatever  the  programming  time  or  the  set 
temperature.  By  entering  the  02  parameter  it  is 
possible to adjust the frost protection  temperature: 
the factory setting is 5°C, the 02 parameter can be 
adjusted  between  3°C  and  10°C.  the  frost 
protection  selected  temperature  becomes  the 
minimum  settable  value  for  the  economy 
temperature (inside the main menu).  

W

ARNING

!

 This anti-frost protection is not intended 

to be the main control to protect the entire heating 
system and the boiler during a freezing period. 

03 

H

YSTERESIS 

OFF

 

The  value  selected  with  this 

parameter  indicates  when  the  heat  request  is 
stopped. The factory setting is 0,4°C, values range 
between  0,0°C  and  2,0°C.  Heat  requests  switch 

OFF  when  the  room  temperature  reaches  the 
room  target  temperature  plus  the  hysteresis  OFF 
value.  

04 

H

YSTERESIS 

ON

 

The  value  selected  with  this 

parameter  indicates  when  the  heat  request  is 
activated.  The  factory  setting  is  0,2°C,  values 
range  between  0,0°C  and  2,0°C.  Heat  requests 
switch ON when the room temperature drop below  
the  room  target  temperature  minus  the  hysteresis 
ON value.  

05 

E

NCODING 

The coupling between the receiver and 

the  transmitter  is  factory  done,  however  if 
necessary  it  is  possible  to  make  again  the 
coupling.  Selecting  the  parameter  the  function 
start,  press  the  button  on  the  receiver  for  5 
seconds,  the  green  led  start  to  blink  regularly. 
When  the  codification  has  been  concluded  (this 
will take up to few minutes), the led stops to blink 
and  this  will  confirm  the  coupling  done.  On  the 
transmitter press the encoder to enter and escape.  

06 

R

ADIO  FREQUENCY 

The  product  uses  a  radio 

frequency value of 868MHz as required by the CE 
regulation.  In  the  case  this  value  interferes  with 
other  home  appliances  having  the  same,  it  is 
possible  to  have  a  small  modification  of  the  radio 
frequency. Default value is CH5 that correspond to 
868.0MHz,  the  choices  are  between  CH0  and 
CH9. CH0 = 867.5MHz 

.. CH9=868.4MHz. After 

the  selection  of  a  new  radio  frequency  value  it  is 
necessary  to  proceed  to  a  new  encoding  (see 
encoding parameter 05) 

W

ARNING

!

 The modification of the radio frequency 

must be a rare operation to do only if the errors in 
are recognized to be not due to a long distance or 
low batteries.

 

 

 

Summary of Contents for HRT-177RS

Page 1: ...RELESS manual issue 02 2013 rev 03 HRT 177RS WIRELESS RF WEEKLY ROOM THERMOSTAT Installation and user instruction page 2 EN CRONOTERMOSTATO SETTIMANALE SENZA FILI Manuale di installazione e uso pag 11 IT ...

Page 2: ...al actions required by the installer wiring connections of the receiver to the boiler setting the time and setting the day All the rest like coupling between receiver and transmitter heating pattern default temperatures etc are already pre configured at the factory IMPORTANT these instructions should be read in conjunction with the appliance installation instructions It is recommended that this de...

Page 3: ... selection only for expertise Escape from main menu QUICK START GUIDE To be read and used after a proper installation has been made and after the hours and the working mode has been set WORKING MODE This central heating control device provides you both the room thermostat function and the weekly clock function When in AUTO mode the central heating will be ON OFF according to the programmed times a...

Page 4: ...ture selection 03 hysteresis OFF value selection 04 hysteresis ON value selection 05 encoding and coupling with the RF receiver 06 radio frequency value selection EHIt escape from technical menu for technical menu see dedicated paragraph Exit escape from main menu INSTALLATION AND OPERATING INSTRUCTIONS Unlike the conventional thermostat this control separates the function in two units The receive...

Page 5: ...osition whatever the transmitter request was led green irregularly blinking However it is possible manually move the relay position the heat request to the OFF or ON position permanently by pressing the receiver transparent button The selected position is indicated by the red or green light irregularly blinking Once the radio communication has been reactivated the receiver will revert to work acco...

Page 6: ...s required to encode the transmitter and the receiver this operation should be done while the receiver and the transmitter are still very near see the encoding instructions Before fixing the transmitter check that the radio signal is active if there is no communication the receiver will blink red or green irregularly Because the transmitter uses radio waves to communicate with the receiver you sho...

Page 7: ...ation on the receiver Room temperature calibration Automatic boiler switch ON for radio communication errors missing communication between receiver and transmitter OPERATING INSTRUCTIONS At the first installation the thermostat the time and the day of the week needs to be set see encoder paragraph After this a desired thermostat status must be selected see the encoder paragraph When in AUTO mode t...

Page 8: ...mostat request This will prevent freezing in case of missing communication between the receiver and the transmitter in winter position If the receiver is located at the limit of wireless maximum distance the receiver can lose the communication for a while and then back to normal working mode In the case of missing supply to the receiver electrical black out the communication will be lost but at th...

Page 9: ...period 03 HYSTERESIS OFF The value selected with this parameter indicates when the heat request is stopped The factory setting is 0 4 C values range between 0 0 C and 2 0 C Heat requests switch OFF when the room temperature reaches the room target temperature plus the hysteresis OFF value 04 HYSTERESIS ON The value selected with this parameter indicates when the heat request is activated The facto...

Page 10: ...ating 2 x 1 5AAA Alkaline batteries Temperature setting 3 C to 35 C in 0 2 C increments Display temperature 9 9 C to 50 C in 0 2 C increments Install transmitter and receiver in an environment with normal pollution level Radio range 40 m in free space the range can be altered depending on the installation conditions and on the electromagnetic environment The manufacturer reserves the right to chan...

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