Unical !DEA Operation instructions

USER’S OPERATING INSTRUCTION


INSTRUCCIONES DE USO PARA EL USUARIO
ENGLISH
РУССКИЙ
ESPAÑOL TÜRKÇE

2
SAFETY WARNINGS
CAUTION!
The appliance may only be used by adults after reading the installation and servicing
manual thoroughly.
Children must be supervised to prevent them from playing or tampering with the
appliance
CAUTION!
The appliance must be installed, adjusted and maintained by professionally qualied
personnel, in compliance with the standards and provisions in force. Incorrect instal-
lation can cause damage to persons, animals and objects for which the manufacturer
cannot be held responsible.
DANGER!
NEVER attempt performing maintenance or repairs on the appliance on your own
initiative.
Any work must be done by professionally qualied personnel. We recommend stip-
ulating a maintenance contract.
Insufcient or irregular maintenance can jeopardise the operating safety of the appli-
ance and cause damage to persons, animals and objects for which the manufacturer
cannot be held responsible.
ATTENTION!
Changes to the parts connected to the boiler (once the boiler installation is complete)
Do not modify the following parts:
- the boiler
- the gas, air, water and electricity supply lines
- the ue gas pipe, the safety valve and the exhaust pipe
- the construction parts which affect the operating safety of the appliance.
ATTENTION!
To tighten or loosen the screwed ttings, use only appropriate xed spanners.
Non-compliant use and/or inappropriate tools can cause damage (e.g. water or gas
leakage).
ATTENTION!
Indications for propane gas-red appliances
Make sure that the gas tank has been deaerated before installing the appliance.
For state-of-the-art tank venting, contact the LPG supplier or person qualied in
compliance with the law requirement.
If the tank has not been professionally deaerated, ignition problems could arise.
In that case, contact the supplier of the LPG tank.
DANGER! Smell of gas
Should a smell of gas be perceived, follow these safety guidelines:
- do not turn electric switches on or off
- do not smoke
- do not use the telephone
- close the gas shut-off valve
- air out the area where the gas leakage has occurred
- inform the gas supplier or a company specialised in installation and maintenance
of heating systems.
DANGER! Explosive and easily ammable substances
Do not use or store explosive or easily ammable materials (e.g. petrol, paints, paper)
in the room where the appliance is installed.
DANGER!
Do not use the appliance as a supporting base for objects.
In particular, do not place receptacles containing liquids (Bottles, Glasses, Jars or
Detergents) on top of the appliance.
If the appliance is installed inside a housing, do not insert or rest other objects inside
this housing.

3
ENGLISH

NOTE!
Tips
for the user
ATTENTION!
Possible dangerous
situation for the product and the environment

Serious danger for
personal safety and life

The boiler has been built according to the current level of engineering and acknowledged
technical safety rules.
Nonetheless, if improperly used, dangers could arise for the safety and life of the user and
other persons or damage to the equipment or other objects.
The appliance is designed to work in heating systems, with hot water circulation, for the pro-
duction of domestic hot water.
Any other use is considered improper.
UNICAL AG S.p.A. will not be held liable for any damage resulting from improper use.
Use according to the intended purposes also includes strict compliance with the instructions
in this manual.
The user must be instructed concerning the use and operation of the heating system, in particular:
• Delivertheseinstructionstotheuser,aswellasotherdocumentsconcerningtheappliance
inserted in the envelope inside the packaging. The user must keep this documentation safe
for future consultation.
• Informtheuserabouttheimportanceoftheairventsandtheuegasexhaustsystem,high-
lighting their essential features and the absolute prohibition of modifying them.
• Informtheuserconcerningcontrollingthesystem'swaterpressureaswellasoperationsto
restore it.
• Informtheuserconcerningcorrecttemperaturecontrol,controlunits/thermostatsandradiators
for saving energy.
• Rememberthatthesystemmustreceiveregularmaintenanceatleastonceayearandcom-
bustion analysis must be performed every two years (as per national law).
• Shouldtheappliancebesoldortransferredtoanewownerorifyoumoveandleavethe
appliance, always make sure that the instruction booklet accompanies it in order to be con-
sultedbythenewownerand/orinstaller.
The manufacturer will not be held liable in the event of damage to persons, animals or objects
resulting from failure to comply with the instructions contained in this manual.

 

• Thehardnessofthefeedwaterconditionsthefrequencyatwhichthedomestichotwater
exchangermustbecleaned.
• Ifthewaterhasahardnessgreaterthan15°f,werecommendusingwatersofteners,chosen
according to the characteristics of the water.
• Inordertoimprovescalingresistance,itisrecommendedtoadjustthedomestichotwaterat
a temperature very close to that actually used.
• Itisrecommendedtoverifythecleanlinessofthedomestichotwaterexchangerattheend
oftherstyear,andthenaccordingtothelevelofscalingfound;theperiodcanbeextended
to two years.
Pay special attention when reading this manual to the parts marked by the symbols:

At the end of its life cycle the product must not be disposed of as urban waste. It can be taken to
a special recycling centre managed by the local authorities, or to a dealer who offers this service.
Separate disposal of a domestic appliance avoids possible negative consequences for the environment
and human health deriving from inappropriate waste handling and allows the recovery of the materials
ofwhichitismade,inordertoobtainsignicantenergyandresourcesavings.

4


KEY
A Pressure gauge
BSummer/WinterSelector+Room
heating temperature regulator
(request from ON-OFF thermostat)
CDomestichotwatertemperatureregulator
D Unblock/calibration/diagnosisbutton
E Information display
F Heating function active
GDomestichotwaterfunctionactive
I Block symbol
L Burner in operation symbol


Via this knob it is possible to se-
lect the operating mode:
Summer (domestic hot water pro-
duction only)
The knob in position (Summer)
indicatesthatheatingisexcluded
and that the antifreeze function
stays active.
Winter (domestic hot water pro-
duction and heating temperature
adjustment).
Positioning the knob in the eld
shown to the side, indicates that
theboilerisin"Winter"mode,and
adjusts the temperature of the
heating circuit water.
The adjustment is between min.
45°Candmax78°C.

regulator
Via this knob it is possible to ad-
just the domestic hot water inlet
temperature:
Positioning the knob in the eld
indicated at the side, adjusts the
DHWtemperature.
The adjustment is between min.
35°Candmax57°C.
®
0
1
2
3
4
bar
MAX
M
I
N
MAX
MIN
bar
service
E
A
D
DBCEA
bar
service
G
NI
L
F
M
M Fault symbol
N Temperature of fault code indication
Attention! The adjustment refers to the
request from the ON-OFF thermostat.
The temperature requested through the
OT input (Open therm) must be set on
the Regola Facile (maximum heating
temperature) and it is independent from
the position of the knob, except for
“Winter”modeenabling.
MAX
MIN
MAX
M
I
N
MAX
M
I
N
MAX
M
I
N


5
ENGLISH

This symbol indicates that the burn-
er is in operation.
The symbol lights up when the boil-
er receives a request for heating or
domestic hot water production.
F - Operation in heating mode
The symbol lights up when the
boiler receives a request in heating
mode. If a request for domestic hot
water production is received at the
same time, the light switches off.
G - Operation in hot water
production mode
This symbol lights up when there
is a request for domestic hot water.

The symbol lights up when the
burner safety device has inter-
vened, due to:
- No gas
- Failed ignition
Intherstcase,inwhichtheburner
will not light, one must check if the
gas valve is open.

The symbol lights up on the display
monitor when the boiler detects an
operation anomaly or it is blocked
due to a permanent fault. The code
thatidentiesthecauseisdisplayed
in place of the degrees centigrade
bypressingtheunblockbutton(D).
The symbol is also displayed by en-
abling the calibration function and
asheswhenchangingparameters.

Byactingonthisbuttonfor<1sec.
one can:
- restart the boiler after the burner
safety device has intervened, ac-
tivating the symbol on the display
- display the error code when the
boiler operation is block due to
a permanent fault, activating the
symbol on the display
Thermometer
If, on the display, the symbol
( ) is lit up, the temperature in-
dicated is that relating to the water
for the heating circuit
If, on the display, the symbol
( ) is lit up, the temperature in-
dicated is that relating to the water
for the domestic hot water circuit.
A - Pressure gauge
Displaysthewaterpressureinside
the heating circuit; this pressure
valuemustnotbebelow0.8/1bar
(when cold).
Ifthepressure dropsbelow0.8/1
bar, one must restore the correct
valuebyactingonthesystemll-
ing valve. This operation must be
carried out when the boiler is cold.

1Make sure the gas shut-off valve upstream of
the boiler is open.
2 Check that any shut-off valves
formaintenance,ontheowand
return are open.
3Check that the shut-off valve, for maintenance,
on the domestic cold water inlet is open.
4Check that the safety valves outlet has been
connected to the drains.
5 Checkthattheboilerispoweredelectrically;
the display (E) on the control panel must be
lit up.
6Check the water pressure on the boiler pres-
sure gauge (A); for optimum operation, the
pressure should be between 0.8 and 1 bar
(with pump stopped).
Shouldthepressurebelowerthan0.7barwith
the system cold, restore pressure by opening
thesystemllingtap(seepar.6.4).

6



Make sure that the selector  is
positioned on ( )
Position the domestic hot water
temperature knob  on the de-
sired temperature.
- completely to the left = 35°C
- completely to the right = 57°C
By adjusting the temperature of the domestic hot
water at a temperature very close to that actually
used, you will avoid mixing hot water with cold
water,withmanagementsavingsandsignicantly
reducing the formation of limescale.
By opening a hot water tap, the
appliance is automatically activat-
ed and delivers water at the set
temperature.
Duringthesamplingstage,thedis-
play shows the temperature of the
domestic hot water and the symbol
( ) stays lit up.
Antifreeze protection
The boiler is equipped with an antifreeze protection system.
To activate the antifreeze function, position the

The antifreeze protection inter-
venes only if the boiler is powered
electrically and if the gas valve is
open.
If for some reason there is a power
or gas failure, the antifreeze protec-
tion described above is not active.

discharge
For operation in heating mode the
knob  must be positioned in the
eldshowninthegure,
- In correspondence of MIN
the temperature is minimum = 45°C.
- completely to the right = 78°C
If the heating system is equipped
with a modulating room thermostat
(TA mod), put the knob  in cen-
tral position.
Duringtheheatingstage,thedis-
play shows the water temperature
and the symbol ( ) stays lit up
Complete decommissioning
To decommission the system,
disconnect the boiler from the
power supply by acting on the main
switch.
In the event of complete decom-
missioning, the heating and hot
water production modes as well
as the antifreeze protection are
completely disabled.
If idle for long periods, close the
gas shut-off valve and cold water
cock, if present.
MAX
M
I
N
MAX
M
I
N
MAX
M
I
N
MAX
MIN
MAX
MIN
MAX
M
I
N
MAX
M
I
N
TA
mod.

7
ENGLISH


BOILERSWITHFORCEDDRAUGHT
In the event the unblock button is NOT pressed,
after10minutestheboilerinanycasereattempts
the ignition cycle.
BOILERSWITHNATURALDRAUGHT
After the sensor has cooled, unblock the boiler by
pressing the unblock key.
It is strictly forbidden to tamper
.
p disclaims any
liability for damage caused as a
result of improper installation, use,
appliance conversion or for non-
compliance with the instructions
supplied by the manufacturer or
installation regulations in force
concerning the material in question.
Whentheboilerdetectsanoperationanomalyor
it is blocked due to a permanent fault, the control
panel display lights up, and the symbol (
service
) starts
toash.
If the fault is permanent, the error code is displayed
in place of the degrees centigrade.
For the codes listed on this page,
it is not necessary to press button
 to display the error code.
by pressing the unblock button “”
thecodethatidentiesthecauseis
displayed,ashing,inplaceofthe
degrees centigrade,
(forthe“errorcodes”listseepar.
4.6 installation and maintenance
instruction manual).
The user can intervene to restore proper operation
only in the following cases:
System pressure too
low
 -

Restore the correct pressure value
byactingontheboilerllingvalve
(for optimum operation, the pres-
sure value should be within 0.8
and1bar).
Whentheminimumpressurevalue
is reached (0.6 bar), boiler opera-
tion is resumed.
If water pressure must be con-
tinually restored, contact an
Authorised Unical Assistance


Burner blocking device triggered
due to:
- no gas
- air in pipe (when system is new
or after long idle period).

eliminate the

Check that the gas valve is open
and press the unblock button to
resume the proper operation of
the boiler.
After 3 interventions of the boiler
-
sume operation of the boiler by


Safety thermostat intervention

-
inate the

Bleed the air from the radiators and
restore system pressure.
For all the other error codes, the user is NOT
authorised to resume boiler operation by him-


service

2











           






           

       

         

 


 

 

 

 


 

 
 

 


        





3
РУССКИЙ








       
       

         





      




 
 
 
 

         

 
 
 
 
 
         



        






 





4





B 


C     

 
E 
F 
 

I
L




   


    



  
    
  


   
    

  



   
  
   

  
  
   



®
0
1
2
3
4
bar
MAX
M
I
N
MAX
MIN
bar
service
E
A
D
DBCEA
bar
service
G
NI
L
F
M
M
N   



  



    

MAX
MIN
MAX
M
I
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MAX
M
I
N
MAX
M
I
N
