INOXIA GJ
00335291 - 1
st
edition - 04/11
USER’S OPERATING
INSTRUCTIONS
2
Contents
1 - SYMBOLS USED IN THIS MANUAL
When reading this manual particular care has to be given to the parts marked with the followings symbols:
NOTE!
Suggestions
for the user
WARNING!
Indicates a potentially dangerous
situation for the product and the
environment
DANGER!
Indicates serious danger
for your personal safety
and for your life
2 - A CORRECT USE OF THE APPLIANCE
The INOXIA GJ appliance has been designed utilizing today’s heating technology and in compliance with
the current safety regulations.
However, following an improper use, dangers could arise for the safety and life of the user or of other
people, or damage could be caused to the appliance or other objects.
The appliance is designed to be used in pumped hot water central heating systems and for the
production of domestic hot water.
Any other use of this appliance will be considered improper.
UNICAL declines any responsibility for any damages or injuries caused by an improper use; in this case
the risk is completely at the user’s responsibility.
In order to use the appliance according to the foreseen scopes it is necessary to carefully follow the
instructions indicated in this manual.
3 - WATER TREATMENT
• The hardness of the mains water supply conditions the frequency with which the DHW heat exchanger is cleaned.
• In hard water areas where the main water can exceed 15°f total hardness, a scale reducing device is
recommended. The choice of this device has to be made taking into consideration the characteristics of the water.
• In order to improve the resistance to lime scale it is recommended to adjust the domestic hot water temperature
as near as possible to the one you really require.
• We recommend you to check the state of cleanliness of the domestic hot water heat exchanger at the end of the
first year and subsequently, on the basis of the lime scale found, this period can be extended to two years.
INDEX
Simbologia utilizzata nel manuale ................................................................................................................................................... 2
1 Symbols used in this manual ...................................................................................................................................................... 2
2 Correct use of the appliance ...................................................................................................................................................... 2
3 Water treatment .......................................................................................................................................................................... 2
4 Information to be handed over to the user .................................................................................................................................. 3
5 Safety warnings .......................................................................................................................................................................... 3
6 Using instructions ....................................................................................................................................................................... 4
6.1 Panel control MASTER MODULANTE cod. 37892 (singleboiler) ......................................................................................... 4
6.2 Panel control MASTER MODULANTE cod.37892 (cascade boiler) ..................................................................................... 7
6.3 Panel control CASCATA MODULANTE cod. 37900 (cascade boiler) ................................................................................. 10
6.4 Panel control MASTER BISTADIO cod. 37892 (single boiler) ............................................................................................ 15
6.5 Panel control MASTER BISTADIO cod. 37892 (cascade boiler) ........................................................................................ 18
6.6 Panel control CASCATA BISTADIO cod. 37900 (cascade boiler) ....................................................................................... 21
6.7 Checks initial lighting .......................................................................................................................................................... 26
6.8 Anomalies elimination ........................................................................................................................................................ 26
3
Generali Informations
The user has to be instructed on the use and operation of his heating system, in particular:
• Hand over these instructions to the end user, together with any other literature regarding this appliance placed
inside the envelope contained in the packaging. The user has to keep these documents in a safe place in
order to always have them at hand for future reference.
• Inform the user on the importance of air vents and of the flue outlet system, stressing the fact that is absolutely
forbidden to make any alterations to the boiler.
• Inform the user how to check the system’s water pressure as well as informing him how to restore the correct
pressure.
• Explain the function of time and temperature controls, thermostats, heating controls and radiators, to ensure the
greatest possible fuel economy.
• Remind the user that, in order to comply to the standards in force, it is necessary to inspect and service the
boiler according to the current codes of practice and according to the schedule indicated in this manual by the
manufacturer.
• If the appliance is sold or transferred to another owner or if the present user moves home and leaves the
appliance installed, ensure yourself that the manual always follows the appliance so that it can be consulted by
the new owner and/or installer.
Failure to follow the instructions indicated in this guide, which is supplied with the boiler, could cause injury
to persons, animals or damage to property. The manufacturer shall not be held liable for any such injury
and/or damage.
4 - INFORMATION TO BE HANDED OVER TO THE USER
5 - SAFETY WARNING
WARNING!
The installation, adjustment, and servicing of this appliance must be carried out by a competent person
and installed in accordance with the current standards and regulations. Failure to correctly install this
appliance could cause injury to persons, animals or damage to property. The manufacturer shall not be
held liable for any injury and/or damage.
DANGER!
Servicing or repairs of the appliance must be carried out by UNICAL authorised service technicians; UNICAL
recommends drawing up a service contract. Bad or irregular servicing could compromise the safe operation of
the appliance, and could cause injury to persons, animals or damage to property for which UNICAL shall not be
held liable.
Alterations to parts connected to the appliance
Do not carry out any alterations to the following parts:
- the boiler
- to the gas, air, water supply pipes and electrical supply
- to the flue pipe, safety relief valve and its drainage pipe
- to the constructive components which influence the appliance’s safe operation
Smell of gas
If you smell gas follow these safety indications:
• Do not turn on or off electrical switches
• Do not smoke
• Do not use the telephone
• Close the mains gas tap
• Open all windows and doors where the gas leakage has occurred
• Contact the gas society or a company specialized in installing and servicing heating systems
Explosive and easily inflammable substances
Do not use or leave explosive or easily inflammable material (as for example: petrol, paint, paper) in the room
where the appliance has been installed.
4
Operating instructions
18 19
18 19
14 15
14 15
14 15 16 17
35
33
34
18 19 20 21 22 23
21.0
20
Servizio
Data/Ora/Vacanze
Visual Inf.
Utente
Progr.Tempo
Tecnico
Impianto
Acqua Calda
Circuito risc. I
Solare/MF
Circuito risc. II
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID 1/2/11/Mod
Run
2
1
MAIN SWITCH
This switch can give and take power to the boiler:
- With the switch in position 0 the boiler is not powered (green
light off)
- With the switch in position 1 the boiler is powered (green
light on) and is designed for the production of hot water for
the heating
BURNER SWITCH
This switch can give and take power to the Burner
- With the switch in position 0 the burner is not powered
(green light off)
- With the switch in position 1 the burner is powered
(green light on) and is designed for the working on the
thermoregulation demand
6.1 - PANEL CONTROL MASTER MODULANTE - cod. 37892 (with single boiler)
14 switch with indicator light
16 main fuse
18 Burner switch
19 P1 Switch pump system (cascade)
20 switch system pump direct zone PZ1
21 switch system pump mixed zone Pz2
33 thermostat operation
35 Safety thermostat
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6 - OPERATING INSTRUCTIONS
5
Operating instructions
20 21
20 21
20 21
20 21
SWITCH INGNITION PUMP SYSTEM OF THE DIRECT
AREA
This switch can give and take power to the pump system of
the direct area
- With the switch in position 0 the pump system is not powered
- With the switch in position 1 the pump system is powered
and designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
SWITCH INGNITION PUMP SYSTEM OF THE MIXED AREA
This switch can give and take power to the pump system of
the mixed area
- With the switch in position 0 the pump system is not powered
- With the switch in position 2 the pump system is powered
and designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
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6
Operating instructions
35
33
HEATING ADJUSTMENT TEMERATURE
The heating adjustment ranges from a minimum value of 0 C°
and a maximum value of 90 C°
For the a correct operation of the thermo-regulator, the
thermostat knob must be placed on full scale (right toward)
Regarding the setting of power temperature, see the
paragraph “Thermo regulator programming”
The value set, will displayed on the thermo-regulator
RESET OF THE SAFETY THERMOSTAT
IMPORTANT: The safety thermostat is located under
the cover shown in the figure. To access to it, in case of
shutdown of the boiler, unscrew the plastic cap with a
screwdriver; after the reset, replace the plastic cover.
The safety thermostat can intervene in case of excess
temperature in the boiler.
Is possible to work around this, first, by lowering the working
temperature of the boiler.
In the case of repeated interventions of the
device boiler safety, not groped to restore
the operation of the boiler on own initiative.
Contact an Authorized Service
7
Operating instructions
18 19
18 19
14 15
14 15
14 15 16 17
35
33
34
18 19 20 21 22 23
21.0
20
Servizio
Data/Ora/Vacanze
Visual Inf.
Utente
Progr.Tempo
Tecnico
Impianto
Acqua Calda
Circuito risc. I
Solare/MF
Circuito risc. II
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID 1/2/11/Mod
Run
2
1
MAIN SWICTH
This switch can give and take power to the boiler N°1:
- With the switch in position 0 the boiler n°1 is not powered (
green light off)
- With the switch in position 1 the boiler n°1 is powered (green
light on) and is designed for the production of hot water for the
heating
BURNER SWITCH
This switch can give and take power to the Burner of the boiler
n°1
- With the switch in position 0 the burner of the boiler n°1 is
not powered (green light off)
- With the switch in position 1 the burner of the boiler n°1 is
powered (green light on) and is designed for the working on
the thermoregulation demand
6.2 - PANEL CONTROL MASTER MODULANTE - cod. 37892
14 Switch with indicator light
16 Main fuse
18 Burner switch
19 Switch system pump P1 (cascade)
20 Switch system pump direct area PZ1
21 Switch system pump mixed area Pz2
33 Thermostat operation
35 Safety thermostat
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8
Operating instructions
20 21
20 21
20 21
20 21
18 19
18 19
IGNITION SWICTH OF SYSTEM PUMP DIRECT AREA
With this switch is possible give and take power to the pump
system direct area
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position I the pump system is powered
(green light on) and is designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset
IGNITION SWICTH OF SYSTEM PUMP MIXED AREA
With this switch is possible give and take power to the pump
system mixed area
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 2the pump system is powered
(green light on) and is designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset
IGNITION SWICTH OF SYSTEM PUMP PRIMARY RING
BOLIER N°1
With this switch is possible give and take power to the pump
system primary ring of the boiler n°1
- With the switch in position 0 the pump system is not
powered
- With the switch in position II the pump system is powered
and is designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset
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9
Operating instructions
35
33
HEATING ADJUSTMENT TEMERATURE:
The heating adjustment ranges from a minimum value of 0 C°
and a maximum value of 90 C°
For the a correct operation of the thermo-regulator, the
thermostat knob must be placed on full scale (right toward)
Regarding the setting of power temperature, see the
paragraph “Thermo regulator programming”
The value set, will displayed on the thermo-regulator
RESET OF THE SAFETY THERMOSTAT ON BOILER N°1
IMPORTANT: The safety thermostat is located under
the cover shown in the figure. To access to it, in case of
shutdown of the boiler, unscrew the plastic cap with a
screwdriver; after the reset, replace the plastic cover.
The safety thermostat can intervene in case of excess
temperature in the boiler.
Is possible to work around this, first, by lowering the working
temperature of the boiler.
In the case of repeated interventions of the
device boiler safety, not groped to restore
the operation of the boiler on own initiative.
Contact an Authorized Service
10
Operating instructions
12
13
12
13
11
11
6.3 - PANEL CONTROL MODULATING CASCATA - cod. 37900
MAIN SWICTH
This switch can give and take power to the boiler N°2:
- With the switch in position 0 the boiler n°2 is not powered (
green light off)
- With the switch in position 1 the boiler n°2 is powered (green
light on) and is designed for the production of hot water for the
heating
BURNER SWITCH
This switch can give and take power to the Burner of the boiler
n°2
- With the switch in position 0 the burner of the boiler n°2 is
not powered (green light off)
- With the switch in position 1 the burner of the boiler n°2 is
powered (green light on) and is designed for the working on
the thermoregulation demand
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID 1/2/11/Mod
Run
2
1
31
42
11
41
12
13
32
11 switch with indicator light
12 Burner switch
13 Power system pump P1 (primary ring of boiler n°2
cascade)
31 Safety thermostat
32 Operation thermostat
41 Main fuse
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11
Operating instructions
31
42
32
12
13
12
13
IGNITION SWICTH OF SYSTEM PUMP PRIMARY RING
BOLIER N°2
With this switch is possible give and take power to the pump
system primary ring of the boiler n°2:
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 2 the pump system is powered
(green light on) and is designed for the working
IMPORTANT:
The pump system must always be placed in operation
before the burner ignition to allow the dissipation of the
heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
HEATING ADJUSTMENT TEMERATURE
The heating adjustment ranges from a minimum value of 0°C
and a maximum value of 90°C
For the a correct operation of the thermo-regulator, the
thermostat knob must be placed on full scale (right toward)
Regarding the setting of power temperature, see the
paragraph “Thermo regulator programming”
The value set, will displayed on the thermo-regulator
The temperature will also be visible on the thermometer
indicated at the side, provided that the bulb has been properly
placed in the cockpit on the top of the boiler No. 2
Note:
You may note a discrepancy of few degrees between what
is show on the thermometer analog, compared with that
reported in the digital display of temperature control
RESET OF THE SAFETY THERMOSTAT
IMPORTANT: The safety thermostat is located under
the cover shown in the figure. To access to it, in case of
shutdown of the boiler, unscrew the plastic cap with a
screwdriver; after the reset, replace the plastic cover.
The safety thermostat can intervene in case of excess
temperature in the boiler.
Is possible to work around this, first, by lowering the working
temperature of the boiler.
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12
Operating instructions
TIME
Regolare l’ora attuale:
ENGLISH
PARAMETER DISPLAYED DURING FIRST IGNITION
Default Personal valuesValue rangeDescription
INSTALLATION
YEAR
Adjust current year
MONTH
Adjust current month
DAY
Adjust current day (date)
ADDRESS BUS 1
ENTER THE NUMBER FOR THE HEATING CIRCUIT “1”:
00-15 Default 01
ADDRESS BUS 2
ENTER THE NUMBER FOR THE HEATING CIRCUIT “1”:
00-15 Default 02
SENSOR 5K
value 00
00 = 5 kOhm NTC sensor
01 = Ohm PTC sensor 1, the code number is required;
After entering the controller restarts
RETURN
End of operation
select value, adjust value save
select value, adjust value, save
Acc. to version
ENGLISH ENGLISH
(-20) (20)
CONTRAST
0
Sensor, weekday, ...
DISPLAY SEL. - - - -
Heating circuit 01,Heating circuit 02
SELECT PROG.
Default Personal valuesValue rangeDescription
DHW
00, 01 (OFF / ON)
1X DHW 00 = OFF
10 °C - 70 °C
T-DHW 1 DES 60 °C
10 °C - 70 °C
T-DHW 2 DES 60 °C
Exit level using
RETURN
10 °C - 70 °C
T-DHW 3 DES 60 °C
OK - 70K
BOB VALUE 0 gradi
00, 01 (OFF / ON)
CIRCL-P-DHW 00 = OFF
00, 01 (OFF / ON)
ANTILEGION 00 = OFF
Exit level using
RETURN
01
SET LANGUAGE
THERMOREGULATOR (E8.5064) SETTING
Regarding the adjustment and programming of the controller, following are the user programmable parameters to
suit needs.
User programmable parameters
1. Min 2. hours
13
Operating instructions
- - - -
, , , , ,
- - - -
, , , , ,
Default Personal valuesValue rangeDesignation
HEATING CIRCUIT 1
MODE - - - -
5 °C - 40 °C
T-ROOM DES 1*) 20 °C
5 °C - 40 °C
T-ROOM DES 2 20 °C
Exit level using
RETURN
5 °C - 40 °C
T-ROOM DES 3 20 °C
5 °C - 40 °C
T-REDUCED *) 10 °C
5 °C - 40 °C
T-ABSENCE 15 °C
- - - -, (-5) °C - 40 °C
T-LIMIT DAY 19 °C
- - - -, (-5) °C - 40 °C
T-LIMIT N 10 °C
0,00 - 3,00
HEATSLOPE 1,20
00, 01 (OFF / ON)
ADAPTION 00 = OFF
00 - 20
ROOM INFL 10
(-5,0)K - (5,0)K
T-ROOM ADJ 0,0 K
00, 01, 02
OPT HEAT UP 00
0:00 - 3:00 (h)
MAX OPT-TIME 2:00 (h)
0:00 - 3:00 (h)
OPT REDUCED 0:00 (h)
0000 - 9999
PC-ENABLE
0000
Default Personal valuesValue rangeDesignation
HEATING CIRCUIT 2
MODE - - - -
5 °C - 40 °C
20 °C
5 °C - 40 °C
20 °C
5 °C - 40 °C
20 °C
5 °C - 40 °C
10 °C
5 °C - 40 °C
15 °C
- - - -, (-5) °C - 40 °C
19 °C
- - - -, (-5) °C - 40 °C
10 °C
0,00 - 3,00
0,6
00, 01 (OFF / ON)
00 = OFF
00 - 20
10
(-5,0)K - (5,0)K
0,0 K
00, 01, 02
00
0:00 - 3:00 (h)
2:00 (h)
0:00 - 3:00 (h)
0:00 (h)
0000 - 9999
0000
1 2
1 2
Exit level using
T-ROOM DES 1*)
T-ROOM DES 2
RETURN
T-ROOM DES 3
T-REDUCED *)
T-ABSENCE
T-LIMIT DAY
T-LIMIT N
HEATSLOPE
ADAPTION
ROOM INFL
T-ROOM ADJ
OPT HEAT UP
MAX OPT-TIME
OPT REDUCED
PC-ENABLE
14
Operating instructions
Mo. to Fr.: 06:00 to 22:00
Sa. and Su.: 07:00 to 23:00
Value rangeDescription
PROGRAM FOR FIRST CONTROLLER HEATING CIRCUIT
HEAT CIRCUIT 1
FACTORY SETTING:
Mo. to Fr.: 06:00 to 08:00,
16:00 to 22:00
Sa. and Su.: 07:00 to 23:00
HTG-PROG 2
FACTORY SETTING:
Mo. to Fr.: 06:00 to 22:00
sabato e domenica : 07:00 to 23:00
Value rangeDescription
PROGRAM FOR SECOND CONTROLLER HEATING CIRCUIT
HEAT CIRCUIT 1
FACTORY SETTING:
Mo. to Fr.: 06:00 to 08:00,
16:00 to 22:00
Sa. and Su.: 07:00 to 23:00
PROGRAMMA DI RISCALDAMENTO 2
FACTORY SETTING:
Mo. to Fr.: 05:00 to 21:00
Sa. and Su.: 06:00 to 22:00
Value rangeDescription
PROGRAM FOR HOT WATER CHARGING PUMP
FACTORY SETTING:
Mo. to Fr.: 05:00 to 21:00
Sa. and Su.: 06:00 to 22:00
Value rangeDescription
PROGRAM FOR CIRCULATION PUMP
FACTORY SETTING:
15
Operating instructions
18 19
18 19
14 15
14 15
14 15 16 17
35
33
34
18 19 20 21 22 23
21.0
20
Servizio
Data/Ora/Vacanze
Visual Inf.
Utente
Progr.Tempo
Tecnico
Impianto
Acqua Calda
Circuito risc. I
Solare/MF
Circuito risc. II
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID 1/2/11/Mod
Run
2
1
MAIN SWICTH
This switch can give and take power to the boiler :
- With the switch in position 0 the boiler is not powered ( green
light off)
- With the switch in position 1 the boiler is powered (green
light on) and is designed for the production of hot water for the
heating
BURNER SWITCH
This switch can give and take power to the Burner
- With the switch in position 0 the burner is not powered
(green light off)
- With the switch in position 1 the burner is powered
(green light on) and is designed for the working on the
thermoregulation demand
6.4 - PANEL CONTROL MASTER BISTADIO cod. 38778 (with single boiler)
14 Switch with indicator light
16 Main fuse
18 Burner switch
19 Switch system pump P1 (cascade)
20 Switch system pump direct area PZ1
21 Switch system pump mixed area Pz2
33 Thermostat operation
35 Safety thermostat
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16
Operating instructions
20 21
20 21
20 21
20 21
IGNITION SWICTH OF SYSTEM PUMP DIRECT ZONE
With this switch is possible give and take power to the pump
system direct zone
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 1 the pump system is powered
(green light on) and is designed for the working
IMPORTANT: The pump system must always be placed
in operation before the burner ignition to allow the
dissipation of the heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
IGNITION SWICTH OF SYSTEM PUMP MIXED ZONE
With this switch is possible give and take power to the pump
system mixed zone
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 2the pump system is powered
(green light on) and is designed for the working
IMPORTANT: The pump system must always be placed
in operation before the burner ignition to allow the
dissipation of the heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
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17
Operating instructions
35
33
HEATING ADJUSTMENT TEMERATURE:
The heating adjustment ranges from a minimum value of 0 C°
and a maximum value of 90 C°
For the a correct operation of the thermo-regulator, the
thermostat knob must be placed on full scale (right toward)
Regarding the setting of power temperature, see the
paragraph “Thermo regulator programming”
The value set, will displayed on the thermo-regulator
Reset safety thermostat
IMPORTANT: The safety thermostat is located under
the cover shown in the figure. To access to it, in case of
shutdown of the boiler, unscrew the plastic cap with a
screwdriver; after the reset, replace the plastic cover.
The safety thermostat can intervene in case of excess
temperature in the boiler.
Is possible to work around this, first, by lowering the working
temperature of the boiler
In case of repeated interventions of the locking
device of the boiler, not groped to restore the
operation of the boiler on its own initiative.
Contact an authorized service center Unical
18
Operating instructions
18 19
18 19
14 15
14 15
14 15 16 17
35
33
34
18 19 20 21 22 23
21.0
20
Servizio
Data/Ora/Vacanze
Visual Inf.
Utente
Progr.Tempo
Tecnico
Impianto
Acqua Calda
Circuito risc. I
Solare/MF
Circuito risc. II
°C
OK
1
2
1
2
>1s
+
°C
°C
°C
BUS ID 1/2/11/Mod
Run
2
1
MAIN SWICTH
This switch can give and take power to the boiler n°1 :
- With the switch in position 0 the boiler n°1 is not powered (
green light off)
- With the switch in position 1 the boiler n°1 is powered (green
light on) and is designed for the production of hot water for the
heating
BURNER SWITCH
This switch can give and take power to the Burner
- With the switch in position 0 the burner of the boiler n°1is not
powered (green light off)
- With the switch in position 1 the burner of the boiler n°1is
powered (green light on) and is designed for the working on
the thermoregulation demand
6.5 - PANEL CONTROL MASTER BISTADIO cod. 38778 (with cascade boiler)
14 Switch with indicator light
16 Main fuse
18 Burner switch
19 Switch system pump P1 (primary ring of boiler n°1 in
cascade)
20 Switch system pump direct area PZ1
21 Switch system pump mixed area Pz2
33 Thermostat operation
35 Safety thermostat
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19
Operating instructions
20 21
20 21
20 21
20 21
18 19
18 19
IGNITION SWICTH OF SYSTEM PUMP DIRECT ZONE
With this switch is possible give and take power to the pump
system direct zone
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 1 the pump system is powered
(green light on) and is designed for the working
IMPORTANT: The pump system must always be placed
in operation before the burner ignition to allow the
dissipation of the heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset
IGNITION SWICTH OF SYSTEM PUMP MIXED ZONE
With this switch is possible give and take power to the pump
system mixed zone
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 2the pump system is powered
(green light on) and is designed for the working
IMPORTANT: The pump system must always be placed
in operation before the burner ignition to allow the
dissipation of the heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset.
IGNITION SWICTH OF SYSTEM PUMP PRIMARY RING
BOLIER N°1
With this switch is possible give and take power to the pump
system primary ring of the boiler n°1
- With the switch in position 0 the pump system is not
powered (green light off)
- With the switch in position 2 the pump system is powered
(green light on) and is designed for the working
IMPORTANT: The pump system must always be placed
in operation before the burner ignition to allow the
dissipation of the heat.
Otherwise, the safety thermostat in the boiler, intervene to
achieve the maximum temperature, with consequent need
for the reset
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Operating instructions
35
33
HEATING ADJUSTMENT TEMERATURE
The heating adjustment ranges from a minimum value of 0 C°
and a maximum value of 90 C°
For the a correct operation of the thermo-regulator, the
thermostat knob must be placed on full scale (right toward)
Regarding the setting of power temperature, see the
paragraph “Thermo regulator programming”
The value set, will displayed on the thermo-regulator
RESET OF THE SAFETY THERMOSTAT
IMPORTANT: The safety thermostat is located under
the cover shown in the figure. To access to it, in case of
shutdown of the boiler, unscrew the plastic cap with a
screwdriver; after the reset, replace the plastic cover.
The safety thermostat can intervene in case of excess
temperature in the boiler.
Is possible to work around this, first, by lowering the working
temperature of the boiler.
In case of repeated interventions of the locking
device of the boiler, not groped to restore the
operation of the boiler on its own initiative.
Contact an authorized service center Unical
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