Post on 13-Aug-2019
US
ER
S' I
NS
TR
UC
TIO
NSWall-mounted fan-assisted boilers
OIL-FIRED INSTOIL-FIRED INSTANT 25ANT 25
CPR, SP AND SP/A MODELSCPR, SP AND SP/A MODELS
Energy-saving technology
LB762o - 08/07/1999
Energy-saving technology
CONTENTS:
- Technical data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 3
- General points . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag 3
- Hydraulic diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 4
- Notes on boiler installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6
- Overall dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6
- Connection set . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6
- Connection to system and main . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 6
- Installing the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7
- Electrical connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7
- Available head with standard pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 7
- Checking rotation of the circulation pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 8
- Control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 9
- Operation of the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 9
- Fuel supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 11
- Conversion of the pumps for single pipe systems . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 11
- Boiler supplied by lift pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 12
- Room ventilation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13
- Snorkel connection for combustion air . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13
- Connection of flue duct . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13
- Regulating combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13
- Standard jets fitted to installed burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 13
- Operating cycle of the installed burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 14
- INSTANT 25 electrical diagram and installed burners . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 15
- Access to the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 21
- Dismantling the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 21
- Replacing the jet and position of the electrodes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 22
- Maintaining and cleaning the boiler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 22
- Exploded drawing of the heating control panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 23
- Exploded drawing of the INSTANT 25 heater. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 24
- Exploded drawing of the boiler jacket . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 28
- Explosion of the burner . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . pag. 29
pag. 3
Energy-saving technologyINSTANT 1F GASOLIO 25INSTANT 1F GASOLIO 25
GENERAL POINTS
The high-efficiency INSTANT CPR boiler is designed to meet all heating and domestic hot water heating needs. The unitis of unparalleled reliability and ensures safe operation, thanks to the extremely robust construction and use of fan-assistedburner technology.Particular attention has been paid to safety and quiet operation since this unit is designed mainly fordomestic use.The creation of an adequate draft through the combustion chamber and flue circuit by the burner fan prior toignition, as well as the room-sealed construction of the combustion chamber, guarantees the maximum possible level ofsafety.Domestic hot water is produced using a highly efficient braze-welded plate exchanger made from self-cleaning stain-less steel: the self-cleaning action is obtained by virtue of the special shape of the plates.
The INSTANT SP model (SP = no domestic hot water) is designed for domestic heating only, while the SP/A model provi-des central heating and also has an outlet for connection to a hot water storage cylinder.
INSTANT units can be connected to a room thermostat enabling automatic temperature control.
Warning: This boiler is designed to raise water to a temperature below boiling point at atmospheric pressure; it mustbe connected to a heating system and/or domestic hot water production and distribution unit, within the limits of itsoutput and performance specifications. Every other use of this equipment should be regarded as improper and the-refore dangerous.
The boiler must be installed by qualified professional fitters, in accordance with current standards and regulations onsafety.Faulty installation can cause damage to persons and property for which the manufacturer cannot be held responsible.
Oil-fired instant 25 CPR + SP + SP/ACE
type approval number
Rated heat output min/max kcal/h 15.000 ÷ 21.500
min/max kW 17,4 ÷ 25
Rated heat output min/max kcal/h 17.200 ÷ 23.740
min/max kW 20 ÷ 27,6
Max operating temperature °C 90
Max circuit pressure bar 4
Max hot water pressure (*) bar 6
Boiler capacity l 30
Quantity of hot water produced (∆t= 35°C) l/min 10,2
at maximum input (∆t= 25°C) l/min 14,3
Expansion tank l 10
Expansion tank precharge pressure bar 1
Electrical power supply ~V/Hz 230 / 50
Max rated power W 240
Gross weight kg 112
Diameter of air/flue ducts mm 80 ÷ 100
(*) = refers to model CPR
CPR = heating and instantaneous production of domestic hot waterSP = heating only
SP/A = heating and connection to external hot water storage cylinder
pag. 4
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
heat
ing
syst
em r
etur
n
hot w
ater
out
let
cold
wat
er in
let
hea
ting
syst
em fl
ow
1
22A 2B
3
4
5
6
7
8
10 12
11 9
13
14
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fuel
inle
t
fuel
ret
urn
INSTANT 25 CPR
HYDRAULIC DIAGRAMS
INSTANT 25 SP
1 - boiler unit2 2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - automatic air vent valve8 - sensor housing9 - hot water exchanger10 - three-way flow assembly11 - enable microswitch12 - return assembly13 - filler valve14 - system safety valve
syst
em r
etur
n
wat
er s
uppl
y
fuel
inle
t
fuel
ret
urn
heat
ing
syst
em fl
ow
1
4
59
10
6
7
8
3
����
22A 2B 1 - boiler unit
2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - automatic air vent valve8 - sensor housing9 - safety valve10 - filler valve
pag. 5
Energy-saving technologyOIL-FIRED INSTANT 1FOIL-FIRED INSTANT 1F
1
13 14
153
4
5
6
8
9
7
11
12
10
M
B A
����
To be carried out by the installer
Boi
ler
wat
er in
let
Fue
l ret
urn
Fue
l inl
et
Hea
ting
syst
em flow
Hea
ting
syst
em r
etur
n
22A 2B
HOT WATER OUTLET
COLD WATER INLET
INSTANT 25 SP/A
1 - boiler unit2 - burner2a - fuel solenoid-valve2b - fuel pump3 - fuel filter4 - expansion tank5 - circulation pump6 - boiler drain valve7 - sensor housing8 - automatic air vent valve9 - safety valve10 - hot water cylinder11 - three-way solenoid valve12 - boiler thermostat13 - fuel shut-off valve14 - fuel shut-off valve15 - filler valve
pag. 6
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
OVERALL DIMENSIONS
Figure A details the dimensions of the boiler.Warning: a 400 mm. free space above the boiler should be allowed for maintenance.
CONNECTION SET (supplied with unit)
A wall-mounted galvanised steel backplate-template is provided to facilitate water connections and boiler positioning.
�������
895
210
130123,5
465
600
346,5
ø 100
ø 80
flue
outle
t
air
inle
t
a - Heating system flow G 3/4b - Hot domestic water G 1/2c - Fuel inlet ø 17d - Fuel return ø 17e - Cold domestic water G 1/2f - Heating system return G 3/4
600 (boiler width)
266 65 65 7047 47
40
895
(boi
ler
heig
ht)
2
22
95
130
70 70460
55 55
a b
= =
d fc e
NOTES ON BOILER INSTALLATION
The boiler must be installed by professionally qualified fitters, observing UNI and CEI standards and following safety regu-lation procedures.Incorrect installation can cause damage to both persons and property, for which the manufacturer will not be held responsible.
N.B. It is advisable to install a drain outlet (with special 1/2" funnel) for boiler safety valves.
fig. A fig. B
a
bc
de
f
a
cd
e
f
Connection kit for INSTANT 25 CPR Connection kit for INSTANT 25 SP and SP/A
Fig. Cconnections referred to figure B.
INSTALLING THE BOILER
After mounting the template to the wall (fig. 1), hook boiler unit to backplate as shown in figure 2. Before connecting upthe boiler, clean carefully, removing any encrustations and eliminating any foreign bodies which might detract from the effi-
ciency of the unit. The unit should be installed in an accessible position for ease of cleaning. Suitable stopcocks should befitted on all inlet and outlet pipes. Once the boiler has been mounted on the wall, the water connections can be completed (fig. C page 6). Unit safety valvesmust be connected up to a suitable outlet.
MANUAL FILLER
The INSTANT 25 boiler unit is equipped with a manual valve for filling the heating system. The INSTANT 25 SP and SP/A boiler (no domestic hot water) is provided with an attachment (on the backplate) inclu-ding a heating system filler valve for connection to the water supply, .The filling operation should be done slowly so that the air can escape through the series-mounted automatic air-vent valve,as well as through any other valves installed in the heating system.The filling pressure for the boiler when cold is indicated on the boiler pressure gauge on the boiler control panel and mustbe between 1 and 1.2 bar. This should be checked periodically.If the boiler pressure falls below the minimum value described above, the user must restore pressure by opening the valve.
ELECTRICAL CONNECTION
The boiler is connected up using the plug (ref. A) located at the bottom of the unit.
IMPORTANT: The boiler unit must be connected to the electrical power supply following the existing legal safety stan-dards. The supply cable must have a minimum section of 1mm2 for lengthsof up to 2 metres, or 1.5mm2 for greater lengths.Electrical connection must include a section switch with a gap between con-tacts of at least 3 mm. so as to guarantee unit isolation from the power sup-ply.
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lift fro
m here
pag. 7
Energy-saving technologyOIL-FIRED INSTANT 1F OIL-FIRED INSTANT 1F
S3
T2
T1
NL1
S3
T2
T1
NL1
230V
50
Hz
Lock out
(room thermostat)Return
Output
Negative
Earth
Positive
Boiler connection plug
A
AA
X X
- position the bracket (supplied) in the selected location;
- using a spirit level, check that the bracket is horizontal;
- drill the backplate fixture holes at location A: use plugs of suitable size and strength when fixing the bracket to the wall;
- position pipes and following the indications on the lower bracket; the template can be removed by breaking along the perforated line (axis x-x). Fig. 2Fig. 1
pag. 8
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
CHECKING ROTATION OF THE CIRCULATION PUMP
IMPORTANT: Check before proceeding that neither the pump nor the waterare boiling and take necessary precautions to prevent possibility of injury fromscalding or damage in the event of leaks.The pump is interlocked to the minimum temperature thermostat and will beshut off temporarily whenever the boiler water temperature falls below a mini-mum.Bleeding the circulation pump:
- loosen the plug A and bleed out any air;- expect water to drip from the cap opening after air bleeding and take pre-
cautions to prevent any ensuing damage to otpump components;
- retighten the plug A.Freeing a seized pump:
- remove plug A- try to rotate the impeller using a screwdriver inserted into the slot on the shaft, taking care not to damage the slot;- replace plug A, checking that there is no leak.
STARTING UP THE CIRCULATION PUMPBefore turning the appliance and pump on, make certain that the system is filled with water and has been properly bled.Circulation pumps may be noisy when starting up for the first time; this can be caused by a small quantity of air trapped inthe circuit. Follow bleeding procedure as above.
N.B. After a long period of inactivity, for example the summer period, the pump may seize. To free it, follow the proceduredescribed above.
AVAILABLE HEAD WITH STANDARD PUMP
0,0 0,5 1,0 1,5 2,0 2,5
1
0
2
3
4
5
6
Hea
d (m
c.a
.)
Flow rate (m3/h)
V1 V2 V3
pag. 9
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
OPERATION OF THE BOILER
Use of 0-I switch (all models) and ✹ - ❄ selector (CPR ed SP/A)
In the 0 position the switch isolates the boiler from the power supply; in position I the control panelis connected to the power supply. In the ✹ position the ✹ - ❄ selector ensures that the boiler produ-ces only domestic hot water; in the ❄ position the boiler can deliver central heating and domestichot water, with hot water taking priority.
CPR AND SP/A MODELSWINTER OPERATION (production of domestic hot water and central heating water, hot water taking priority).
Set the selector to the ❄ symbol (winter operation).In the CPR model, the boiler switches on and starts up in central heating mode, raising and maintaining the water tempera-ture in the boiler to the temperature set with the boiler thermostat; the pump starts up whenever the temperature reachesthe value set on the minimum temperature thermostat. When the room thermostat contacts open, the heating cycle is com-pleted. If hot water is drawn off, the boiler will automatically switch to hot water production when there is a demand forhot water (e.g. if a tap is turned on); the temperature of the hot water in the boiler is controlled by the domestic hot waterthermostat.
✹ ❄
0 I
1 2 3 45
67
8
9
T.A.S. TMINIMA
INSTANT
1
7
2 3 4 5 6
8
910CONTROL PANEL
3
RESETTING THE SAFETY THERMOSTAT
Unscrewand remove
hood.
LEGEND
1 – Temperature and pressure gauge2 – Push button for resetting the flame failure device. In the event of the burner being stopped by the flame detector safety device,
the push button will light up; to restart the burner, depress the button.3 – Safety thermostat with manual reset; this cuts in to stop the burner when the water temperature in the boiler exceeds the set
value. Thermostat is reset manually by depressing the button located beneath the protective cover. 4 – Circulation pump indicator.5 – Boiler on/off switch.6 – Summer-winter selector (CPR and SP/A models only).7 – Boiler thermostat: regulates the temperature of the water in the boiler with the burner in operation or on standby.8 – Fuse9 – Minimum-temperature thermostat: maintains boiler water temperature above set value. When the boiler temperature falls below
minimum unit circulation pumps are switched off.10 – Domestic water thermostat (models CPR and SP/A): controls the boiler temperature when domestic water is in use. This is diffe
rent to the temperature of the boiler during heating or standby phases.
✹
❄
0
I
pag. 10
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
In the SP/A model the boiler will start up in hot water mode to meet the temperature set with the cylinder thermostat; theboiler temperature is regulated by the hot water thermostat. When the set temperature has been reached, the three-wayvalve will switch to heating and the boiler temperature is regulated by the boiler thermostat. When the room thermostatcontacts open, the heating cycle is completed.
SIMULTANEOUS DEMAND FOR HEATING AND HOT WATER (CPR MODELS)
If there is a demand for hot water while the heating is on, the boiler will automatically switch to hot water production (hotwater has priority over heating).
WARNING: in order to ensure the availability of hot water at any time, as well as safe and trouble-free operation of theequipment, it is advisable not to switch off the unit completely using the 0-I switch (for example at night) but to adjustthe room thermostat (or timer/thermostat) or position the season selector to ✹ (Summer).
SUMMER OPERATION (DOMESTIC HOT WATER PRODUCTION ONLY)
Selector set to ✹In the CPR model, the boiler switches on and starts up by raising and maintaining the water temperature set with the boilerthermostat. It will relight automatically if the water temperature falls below the temperature set with the thermostat. In theSP/A model, the boiler starts up in response to the temperature set with the boiler thermostat.
PLEASE NOTE: in order to ensure the availability of hot water at all times, a well as safe and troublefree operation ofthe boiler, it is advisable not to switch off the unit completely using the 0-I switch.
SP MODELS
WINTER OPERATION (heating only)
Switch on the boiler (0-I switch in the I position).The boiler is switched on and, after performing a self-test routine, immediately starts to raise the water temperature to thevalue set on the boiler thermostat, guaranteeing that the temperature remains at the set value.The circulation pump starts up whenever the minimum set value is reached. Once the room thermostat contacts open, theheating cycle is completed.Use the boiler thermostat to raise or lower the water temperature.
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
pag. 11
H
H
ALIMENTAZIONE DEL COMBUSTIBILE H pipe length in metresmetres copper pipe bore = 8mm
0,5 381 42
1,5 482 50
2,5 543 58
H pipe length in metresmetres copper pipe
ø int. 8 mm ø int.10 mm
0,5 30 721 25 62
1,5 21 522 17 42
2,5 13 313 9 21
3,5 5 11
suction feed
gravity feed, supplied from thetop of the tank
SUNTEC
2 3
4
1 6
5
SR
P
P1
V
2
4
61
5
3
1 - Inlet2 - Pressure gauge and breather port3 - Vacuum gauge port4 - Pressure set screw5 - Outlet (pressure flow to nozzle)6 - Return flow
SUNTEC AS 47DANFOSS BFP 11 R3
FUEL SUPPLY
CONVERSION OF THE PUMP FOR SINGLE PIPE SYSTEMS
Warning: unlike double pipe systems, air is not automatically bled out in a single pipe system. It is therefore essen-tial to bleed the line on first operation as even a minimal infiltration of air in the fuel line will cause the burner toshut down.
SUNTEC PUMP
To convert the SUNTEC pump:1) Remove the socket screw A located inside the return
port.2) Blank off the return port with a metal plug and seal.
ertire la pompa SUNTEC:
DANFOSS PUMP
To convert the DANFOSS pump:1) Remove the pump cover and the internal filter2) Remove the screw located inside the return port as shown in the
figure on the left.3) Replace the pump filter and cover.4) Blank off the return port with a metal plug and seal.
OIL PUMP
pag. 12
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
WARNING: To guarantee smooth and efficient operation of the appliance, the difference in height between fueltank and burner should be no more than 3.5 metres.For greater differences it is essential to install a fuel lift pump (see diagram).Also, the condition and cleanliness of the fuel line filter should also be checked periodically, and thefilter replaced where necessary.
BURNER SUPPLIED BY LIFT PUMP
Hydraulic diagram
When it is impossible for the pump to draw fuel from the tankatmospherically, due to the boiler being sited on an upper storey, anauxiliary electric pump will need to be installed. The figure shows apossible arrangement, with two separate appliances supplied from asingle tank. The electrical connection is made such that the auxiliarypump will switch off when all burners are shut down.N.B. Maximum fuel supply circuit pressure MUST NOT exceed 2bar; the preferred operating pressure is 0.5 bar.
Electrical diagram
The auxiliary pump control must not be connected directly in paral-lel with the burner pump, as this would lead to excess currentdemand.A relay should therefore be installed, connected as shown in the dia-gram.
H230 V 50 Hz
M
M
pag. 13
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
NOZZLE TABLE
SNORKEL CONNECTION FOR COMBUSTION AIR SUCTION FROM THE OUTSIDE.
The serial Snorkel arrangement of the INSTANT GASOLIO thermal unit, allows to con-nect the burners air intake to the outside through an independent air duct, for the suction ofthe needed combustion air. Such an air duct must be sealed toward the inside room andrespect the following specifications:90° bend + 5m max of ø80mm duct length.
CONNECTION OF GAS FLUE
Combustion gases must be ducted to a chimney or to an anti-refouler equipped flue, con-nected to the outside, made in such a way so as to ensure a proper combustion and to avoidthe gases to get in contact with walls, peoples, animals etc.Said duct must be designed so as to be in depression and/or sealed, and made of suitable,smoke-corrosion proof materials. In every point, no matter the outdoor conditions, gas tem-perature must not be higher than the one of dew point. The max. length of gas flue is of 5 m+ a 90° bend.
NOTE: Flue ends must be located in such a way that exhaust gases might not causedamages in case of bad combustion.
ROOM VENTILATION
IMPORTANT: In case the INSTANT GASOLIO thermal unit is mounted without the Snorkel duct for outdoor combustion air suc-tion, it is necessary to make a hole toward outside of, at least, 180 cm2.
Sealed air box, soundproof, withserial SNORKEL connection.
REGULATING COMBUSTION
WARNING: Regulation of combustion must be performed by a professionally quali-fied and authorised technician. INSTANT 25 boiler are factory regulated by themanufacturer. In the event of further regulation being required, read the followinginstructions carefully.
1 - Light the boiler ("winter" setting) and set the thermostat to maximum tempera-ture.
2 - Position the air regulator slide according to flow rate (approximate).3 - Set the pump pressure to the desired value (or replace the oil nozzle, see table
below).4 - Analyse combustion and regulate air flow rate accordingly by adjusting air regu-
lator slide on the burner (having loosened the securing screw) as shown in thefigure.
The sample point must be close to the boiler and the flue connection (no farther than3 - 5 times the flue diameter from the boiler connection).
AIR
GPH Pump pressure (bar)
10 11 12 13 140.50 1,9 2 2,08 2,17 2,250.55 2,1 2,2 2,3 2,4 2,5
Oil flow rate (kg/h)
GPH Pump pressure (bar)
9 10 11 12 130.60 2 2,1 2,2 2,3 2,450.65 2,2 2,3 2,45 -- --
Oil flow rate (kg/h)
DANFOSS oil nozzles fitted as standard on installed burners
nozzle type angle atomizer type pump pressure
No preheater GPH 0,55 60° S 12 barPreheater GPH 0,65 60° S 10 bar
No preheater Preheater
min
max
1 - Vite di serraggio2 - serranda aria3 - manopola
1
2
3
1 - Locking screw2 - Air damper3 - Knob
pag. 14
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
Thermostats
Motor
Transformer
Solenoid valve
Flame
Cutout
Thermostats
Motor
Transformer
Solenoid valve
Flame
Cutout
Ta
Tb Tp
Ts
Tb
Ta Ts
Normal No flame
Preheater
Enable operationcontact
Thermostats
Motor
Transformer
Solenoid valve
Flame
Cutout
Preheater
Enable operationcontact
Thermostats
Motor
Transformer
Solenoid valve
Flame
Cutout
Preheating timeTa
Tp
TsPreheating time
Ta Ts
Tb
Ta
Tb
Normal No flame
OPERATING CYCLE OF THE INSTALLED BURNER
MINOR INSTANT burner
MINOR INSTANT burner with preheater
Ta = Pre-ventilation timeTb = Pre-ignition timeTs = Safety timeTp = Post-ignition time
Ta = Pre-ventilation timeTb = Pre-ignition timeTs = Safety timeTp = Post-ignition time
pag. 15
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
CE
M01
.007
YV
g
TV
BE
M22
.001
B
Yvg
-
Fue
l sol
enoi
d va
lve
B-
Fla
me
dete
ctor
MV
-
Fan
mot
orT
V
- B
urne
r ig
nitio
n tr
ansf
orm
er
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
Bur
ner
elec
tric
al d
iagr
am
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5/C
PR
boi
ler
with
oil-
fired
bur
ner,
no
preh
eate
r
pag. 16
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
CE
M01
.008
ST
CA
Yvg
–
Fue
l sol
enoi
d va
lve
B–
Fla
me
dete
ctor
MV
–
Fan
mot
orR
– R
esis
tor
ST
CA
– Ig
nitio
n en
able
ther
mos
tat
TV
–
Bur
ner
igni
tion
tran
sfor
mer
RY
Vg
TV
B
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
TP
BE
M22
.002
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5/C
PR
boi
ler
with
oil-
fired
bur
ner
and
preh
eate
r
Bur
ner
elec
tric
al d
iagr
am
pag. 17
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
~50
Hz
230V P
E L N
Z
LN
34
56
78
910
1112
L1T1
T2S
3N
L1T1
T2S
3N
L1T1
T2S
3N
L1L2
N
Q
ST
A
CC
SA
L
ST
SH
LCC
ST
min
ST
L
SU
HLB
TP
TP
TP
TP
12
34
56
78
910
1112
3132
LAND
IS L
OA
24
PT
h
BU
RN
ER
ELE
CT
RIC
AL
PO
WE
R IN
PU
T
Q
– m
ain
switc
h (f
used
)Z
–
supp
ress
orC
C
– ci
rcul
atio
n pu
mp
FU
–
fuse
PT
–
hour
met
erH
LB
– fla
me
failu
re in
dica
tor
SA
L –
line
switc
hS
TA
–
room
ther
mos
tat
ST
L –
boile
r th
erm
osta
tS
TS
–
safe
ty th
erm
osta
tH
LCC
– c
ircul
atio
n pu
mp
indi
cato
rS
Tm
in –
min
imum
tem
pera
ture
ther
mos
tat
CONNECTIONS TO BEMADE BY INSTALLER
CE
M01
.003
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5/S
P b
oile
r w
ith o
il-fir
ed b
urne
r, n
o pr
ehea
ter
YV
g
TV
BE
M22
.001
B
Yvg
-
Fue
l sol
enoi
d va
lve
B-
Fla
me
dete
ctor
MV
-
Fan
mot
orT
V
- B
urne
r ig
nitio
n tr
ansf
orm
er
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
Bur
ner
elec
tric
al d
iagr
am
~50
Hz
230V P
E L N
Z
LN
34
56
78
910
1112
L1T1
T2S
3N
L1T1
T2S
3N
L1T1
T2S
3N
L1L2
N
Q
ST
A
CC
SA
L
ST
SH
LCC
ST
min
ST
L
SU
HLB
TP
TP
TP
TP
12
34
56
78
910
1112
3132
LAND
IS L
OA
24
PT
h
BU
RN
ER
ELE
CT
RIC
AL
PO
WE
R IN
PU
T
Q
– m
ain
switc
h (f
used
)Z
–
supp
ress
orC
C
– ci
rcul
atio
n pu
mp
FU
–
fuse
PT
–
hour
met
erH
LB
– fla
me
failu
re in
dica
tor
SA
L –
line
switc
hS
TA
–
room
ther
mos
tat
ST
L –
boile
r th
erm
osta
tS
TS
–
safe
ty th
erm
osta
tH
LCC
– c
ircul
atio
n pu
mp
indi
cato
rS
Tm
in –
min
imum
tem
pera
ture
ther
mos
tat
CONNECTIONS TO BEMADE BY INSTALLER
CE
M01
.005
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5/S
P b
oile
r w
ith o
il-fir
ed b
urne
r an
d pr
ehea
ter
pag. 18
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
ST
CA
Yvg
–
Fue
l sol
enoi
d va
lve
B–
Fla
me
dete
ctor
MV
–
Fan
mot
orR
– R
esis
tor
ST
CA
– Ig
nitio
n en
able
ther
mos
tat
TV
–
Bur
ner
igni
tion
tran
sfor
mer
RY
Vg
TV
B
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
TP
BE
M22
.002
Bur
ner
elec
tric
al d
iagr
am
CE
M01
.004
pag. 19
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
~50
Hz
230V P
E L N
Z
LN
34
56
78
910
1112
L1T1
T2S
3N
L1T1
T2S
3B
4
B4
B5
T6T7
T8
B5
T6T7
T8N
L1T1
T2S
3N
L1L2
N
Q
ST
A
ST
B
CC
SA
L
ST
SK
AK
A
HLC
C
ST
AS
ST
min
SA
EI
ST
L
SU
HLB TP
TP
TP
EI
TP
TP
TP
12
34
56
78
910
1112
3132
LAND
IS L
OA
24
PT
h
CE
M01
.004
CONNECTIONS TO BEMADE BY INSTALLER
BU
RN
ER
ELE
CT
RIC
AL
PO
WE
R IN
PU
T
Q
– m
ain
switc
h (f
used
)Z
–
supp
ress
orC
C
– ci
rcul
atio
n pu
mp
FU
–
fuse
KA
–
KA
rel
ay c
onta
ctK
A
– re
lay
PT
–
hour
met
erH
LB
– fla
me
failu
re in
dica
tor
SA
L –
line
switc
hS
PF
–
flow
indi
cato
r pr
essu
re s
witc
hS
TA
–
room
ther
mos
tat
ST
B
– cy
linde
r th
erm
osta
tS
TL
– bo
iler
ther
mos
tat
ST
S
– sa
fety
ther
mos
tat
JE3V
–
3-w
ay m
otor
ized
val
veH
LCC
– c
ircul
atio
n pu
mp
indi
cato
rS
AE
I –
sum
mer
-win
ter
sele
ctor
ST
AS
–
dom
estic
hot
wat
er th
erm
osta
tS
Tm
in –
min
imum
tem
pera
ture
ther
mos
tat
M 1 ~
JE3V
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5 S
P/A
boi
ler
with
oil-
fired
bur
ner,
no
preh
eate
r
YV
g
TV
BE
M22
.001
B
Yvg
-
Fue
l sol
enoi
d va
lve
B-
Fla
me
dete
ctor
MV
-
Fan
mot
orT
V
- B
urne
r ig
nitio
n tr
ansf
orm
er
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
Bur
ner
elec
tric
al d
iagr
am CE
M01
.005
pag. 20
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
~50
Hz
230V P
E L N
Z
LN
34
56
78
910
1112
L1T1
T2S
3N
L1T1
T2S
3B
3L1
NL2
B3
L1N
L2
N
L1T1
T2S
3N
L1L2
N
Q
ST
A
ST
B
CC
SA
L
ST
SK
AK
A
HLC
C
ST
AS
ST
min
SA
EI
ST
L
SU
HLB TP
TP
TP
EI
TP
TP
TP
12
34
56
78
910
1112
3132
LAND
IS L
OA
24
PT
h
CE
M01
.006
CONNECTIONS TO BEMADE BY INSTALLER
BU
RN
ER
ELE
CT
RIC
AL
PO
WE
R IN
PU
T
Q
– m
ain
switc
h (f
used
)Z
–
supp
ress
orC
C
– ci
rcul
atio
n pu
mp
FU
–
fuse
KA
–
KA
rel
ay c
onta
ctK
A
– re
lay
PT
–
hour
met
erH
LB
– fla
me
failu
re in
dica
tor
SA
L –
line
switc
hS
PF
–
flow
indi
cato
r pr
essu
re s
witc
hS
TA
–
room
ther
mos
tat
ST
B
– cy
linde
r th
erm
osta
tS
TL
– bo
iler
ther
mos
tat
ST
S
– sa
fety
ther
mos
tat
JE3V
–
3-w
ay m
otor
ized
val
veH
LCC
– c
ircul
atio
n pu
mp
indi
cato
rS
AE
I –
sum
mer
-win
ter
sele
ctor
ST
AS
–
dom
estic
hot
wat
er th
erm
osta
tS
Tm
in –
min
imum
tem
pera
ture
ther
mos
tat
M 1 ~
JE3V
ELE
CT
RIC
AL
DIA
GR
AM
- IN
ST
AN
T 2
5 S
P/A
boi
ler
with
oil-
fired
bur
ner
and
preh
eate
r
ST
CA
Yvg
–
Fue
l sol
enoi
d va
lve
B–
Fla
me
dete
ctor
MV
–
Fan
mot
orR
– R
esis
tor
ST
CA
– Ig
nitio
n en
able
ther
mos
tat
TV
–
Bur
ner
igni
tion
tran
sfor
mer
RY
Vg
TV
B
L1T1
T2S
3N
L1L2
N
M 1 ~
MV
TP
BE
M22
.002
Bur
ner
elec
tric
al d
iagr
am
pag. 21
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
ACCESS TO THE BOILER
To gain access to the inside of the boiler, proceed as follows:
- Isolate the appliance from the electrical power supply and shut off the fuel valves- Detach the front panel F- Rotate the flap S downwards- Remove the screws V- Rotate the control panel P downwards- For cleaning purposes, remove the fixing screws and detach the top panel H- To access electrical parts, remove screws V1 and detach the protective housing I
������
✹✹
❄
0
T.A.S.
TMINIMA
INSTANT
I
������
V1
V2
H
P
F
P
I
S
✹✹
❄
0
T.A.S.
TMINIMA
INSTANT
I
V
V
S
F
DISMANTLING THE BURNER
To dismantle the burner from the boiler, proceed as follows:
- Isolate the appliance from the electrical power supply and shut off the fuel valves- Expose the interior as described above- Remove nut A and long nut B (fig. 1) using a spanner- Take out the burner (rotating in anticlockwise direction to facilitate removal)- The burner is provided with a rear bracket on which it can be supported once removed from the boiler, for ease of
servicing. Attach the bracket to the flange stud, securing temporarily with nut A.
When reassembling, check the burner insulating flange and replace if worn or damaged.
AB
A
C C
fig. 1 fig. 2
pag. 22
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
REPLACING THE NOZZLE AND VERIYING THE POSITION OF THE ELECTRODES
Use a suitable wrench when replacing the nozzle, taking care not to damage the electrodes (fig. A).After fitting the new nozzle, check the position of the electrodes; the dimensions must be as indicated in figure B in orderfor the burner to function correctly.
MAINTAINING AND CLEANING THE BOILER
To keep the boiler unit in good working order, clean as instructed below.
- Isolate the appliance from the electrical power supply and shut off the fuel valves- Expose the interior as described above- Remove the nuts D, detach the boiler top A and burner C from the boiler, and remove the baffles B- Using an appropriate brush and vacuum cleaner, clean the pipes as indicated and vacuum the dirt through the burner
aperture. If necessary, detach the bottom E by loosening internal nuts D1 and removing the external bolts F.
Make sure parts are reassembled in the correct order. Inspect all seals removed, and replace if damaged or worn. Make certain the baffles fit snugly in the pipes when reinstated.
3 mm
5/6 mm
2 ÷ 3 mm
A
D D
B
C
E
D1 D1
FF
Fig. A Fig. B
WARNING: before each heating season it is advisable to have the appliance cleaned and checked byan ECOFLAM authorised technician.
pag. 23
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
✹
❄
0
12
34
5
6
7
8
9
T.A.S.
TMINIMA
INSTANT
I
1
4 5
3
26
7
8
10
9
1112
3/Amod. SP
ref. description code
1 Temperature and pressure gauge G3.04
2 Circulation pump indicator E15.09/1
3 Winter/Summer selector * R10.02
3/A Plastic cap (SP Model) R10.13/1
4 Main 0/I switch R10.01
5 Fuse holder . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . E8.02/2
Fuse E8.02
6 Boiler thermostat G8.15/1
7 Safety thermostat, manual reset G8.08/2
8 Control unit A1.17/1
9 Control unit housing A4.02
10 Control unit bracket CFA19.105/101
11 Minimum temperature thermostat G8.02
12 Domestic hot water thermostat* G8.02
EXPLODED DRAWING OF THE CONTROL PANEL
* CPR and SP/A models only
pag. 24
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
���
1
11
12
1026
2524
8
6
7
2
13
3
4
5
23
22
9
21
20
19
16
27
28
18
15
17
14
12/A
22/A
22/B
22/A
22/C
15/A
18/A
17/A
22/D
22/E
Part. A
A
22/F
EXPLODED DRAWING OF INSTANT 25 CPR
pag. 25
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
ref. description code
1 Boiler unit CFA03.058
2 Boiler insulation CFA07.082
3 Bottom boiler top seal J7.18/4
4 Bottom boiler top insulation CFA10.034
5 Bottom boiler top CFA04.303/001
6 Top boiler top insulation support net CFA04.096
7 Top boiler top insulation CFA07.79
8 Top boiler top CFA04.304/001
9 Baffles CFT05.034
10 Automatic air vent valve G2.07/1
11 Sensor holder CFA05.007
12 Thermostats:
boiler
safety
domestic hot water
minimum temperature
12A Thermometer
13 Drain valve S8.01
14 System flow pipe CFT01.102/001
15 Three way valve assembly GR.RUB.02
15A Microswitch assembly V1.39/2
16 Return valve assembly GR.RUB.01
17 High-pressure pipe CFT01.038
17A Low-pressure pipe CFT01.039
18 Plate heat exchanger G13.25/2
18/A O ring Y6.01/29
19 Circulation pump P1.42/3
20 System return pipe CFT01.101/001
21 Expansion tank G4.04
22 Burner of Kerosene 55-27-41/830
22/A Clip E22.06/1
22/B Flexible tube S9.51/2
22/C Collar CFA02.007
22/D Stainless steel terminal O1.1121
22/E
22/F KIT.INST
23 Burner insulation flange BFG02.013
24 Sight glass seal CFG01.027/1
25 Sight glass CFA05.015
26 Sight glass nut CFA05.014
27 Safety valve G2.10
28 Pressure sensor
pag. 26
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
���
1
11
12
1024
2322
8
6
7
2
13
3
4
5
21
20
9
19
15
16
182627
26
14
25
12/A
17
Part. A
A20/A
20/B
20/A
20/C
20/D
20/E
20/F
EXPLODED DRAWING OF INSTANT 25 SP - SP/A
pag. 27
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
ref. description code
1 Boiler unit CFA03.058
2 Boiler insulation CFA07.082
3 Bottom smoke hood seal J7.18/4
4 Bottom smoke hood insulation CFA10.034
5 Bottom smoke hood CFA04.303/001
6 Top smoke hood insulation support net CFA04.096
7 Top smoke hood insulation CFA07.79
8 Top smoke hood CFA04.304/001
9 Baffles CFT05.034
10 Automatic air vent valve G2.07/1
11 Sensor holder CFA05.007
12 Thermostats:
Boiler
safety
minimum
12A Thermometer
13 Drain valve S8.01
14 System flow pipe CFT01.104/001
15 Pump/boiler connecting pipe CFT01.106/001
16 Circulation pump P1.42/3
17 System return pipe CFT01.105/001
18 Safety valve G2.10
19 Expansion tank G4.04
20 Burner of Kerosene 55-27-41/830
20/A Clip E22.06/1
20/B Flexible tube S9.51/2
20/C Collar CFA02.007
20/D Stainless steel terminal O1.1121
20/E
20/F
21 Burner insulation flange BFG02.013
22 Sight glass seal CFG01.027/1
23 Sight glass CFA05.015
24 Sight glass nut CFA05.014
25 Pressure sensor
26 Ring nut 3/4' BFT01.108/1
27 Ring nut 1/2' BFT01.109
pag. 28
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
✹
❄
0
T.A.S.
TMINIMA
INSTANT
I
3
2
1
4
7
9
10 8
65
3
ref. description code
1 Boiler frame CFA09.103/012
2 Top panel CFA12.050/018
3 Side panel CFA12.028/018
4 Upper cross member CFA19.107/001
5 Bottom panel CFA19.104/012
6 Lower cross member CFA19.101/001
7 Control panel protective housing CFA12.202
8 Control panel CFA12.201
9 Front panel CFA12.026/018
10 Flap CFA12.048/018
EXPLODED DRAWING OF INSTANT 25 CPR, SP AND SP/A CASING
pag. 29
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
MIN
OR
INS
TA
NT
25
1
2
3
242314
15
18
1619
2221
4
5
13
126
79
10
8
11
17
25
29
31
30
pag. 30
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
MIN
OR
R IN
ST
AN
T 2
5
20
1
2
3
242314
15
18
1619
20
2221
4
5
13
126
79
10
8
11
17
27
26
28
25
29
31
30
pag. 31
Energy-saving technologyOIL-FIRED INSTANT 1F 25OIL-FIRED INSTANT 1F 25
MINOR INSTANT 25 MINOR R INSTANT 25
ref. description code code
1 Cast burner casing BFF04.318/011 BFF04.318/011
2 Burner casing cover BFC09.002/11 BFC09.002/11
3 Ignition transformer T1.23/2 T1.20
4 Fan rotor BFV10.001/001 BFV10.001/001
5 Motor flange BFF03.005/001 BFF03.005/001
6 Capacitor C1.07/8 C1.07/8
7 Electric motor M1.10/3 M1.10
8 SUNTEC fuel oil pump
DANFOSS fuel oil pump P1.21/3 P1.21/3
9 SUNTEC core
DANFOSS core V4.12/1 V4.12/1
10 SUNTEC coil
DANFOSS coil V5.10/3 V5.10/2
11 Pump connector BFR01.103/001 BFR01.103/001
12 Flexible tube S9.52/11 S9.52/2
13 Fuel oil filter S1.06/1 S1.05
14 Duct BFC08.111 BFC08.111
15 Air intake BFC03.028 BFC03.028
16 Nozzle assembly GR.TT0101/041 -
17 Diffuser BFB01.005/002 BFB01.005/002
18 Ignition cable BFE01.301/1 BFE01.301/1
19 Nozzle assembly support rod BFA05.109/001 BFA05.005/001
20 Preheater assembly - GR.CR.009/5
21 Ignition electrodes BFE01.102 BFE01.026
22 Nozzle U1.0.75/60S U1.0.65/60S
23 Flame detector A2.07/1 A2.07/1
24 Flame detector mounting A2.08/1 A2.08/1
25 Nozzle holder GR.CR.009/2 BFC10.002/1
26 Seal - BFT04.013/1
27 Thermostat - E7.03
28 Fuel preheater element - R1.05/1
29 Air shutter BFS01.002/001 BFS01.002/001
30 External regulation plate BFS01.201 BFS01.201
31 Internal regulation plate BFS01.202 BFS01.202
ECOFLAM S.p.A. reserves the right to make such modifications to products as are deemed necessaryor useful without significantly altering the broad specifications.
Ecoflam S.p.A.via Roma, 64 - 31023 RESANA (TV) - Italy - tel. 0423/715345 r.a. - telex 411357 ECOFLA I - telefax 0423/715444