Automatic Heating | Gasogen | Operating instructions | Automatic Heating Gasogen Operating instructions

Gasogen 29 - 93kW
Wood Fired Boiler
User Operating Instructions
Gasogen
Contents
CONTENTS
1
2
3
4
5
6
Symbols used in
this man ual .................................................................................................................................................... 2
Correct use of
the appliance ..................................................................................................................................................... 2
Water
treatment ......................................................................................................................................................................... 2
Information to be passed over to the end user by the installer/servicing engineer ................................................................. 3
Safety warnings ......................................................................................................................................................................... 3
Operating instructions ............................................................................................................................................................... 4
6.1 Standard controlpanel ....................................................................................................................................................... 4
6.2 Optional control panel ........................................................................................................................................................ 7
6.3 Checks to carry out before firing the boiler ...................................................................................................................... 12
6.4 Boiler start-up ................................................................................................................................................................... 12
6.5 Combustion air adjustment .............................................................................................................................................. 13
6.6 Checks to carry out after first start-up ............................................................................................................................. 14
6.7 Warnings ........................................................................................................................................................................... 15
6.8 Summer operation ............................................................................................................................................................ 15
6.9 Servicing ........................................................................................................................................................................... 16
6.10 Fault finding ..................................................................................................................................................................... 18
-.- Easily replaceable spare parts ......................................................................................................................................... 20
1 - SYMBOLS USED IN THIS MANUAL
When reading this manual, particular care has to be given to the parts marked with the followings symbols:
DANGER! Indicates serious danger for your
personal safety and for
your life
WARNING! Indicates a potentially
dangerous situation for the product
and the environment
NOTE! Suggestions for the
user
2 - A CORRECT USE OF THE APPLIANCE
The GASOGEN G3 2S 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.
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 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.
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 every two years; in this occasion check the state of wear of the anode.
2
Generali Informations
4. INFORMATION TO BE HANDED OVER TO THE USER BY THE INSTALLER/SERVICE ENGINEER
The user or the person in charge has to 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 it 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 it is obligatory to service the appliance at least annually and to carry out a combustion
analysis in compliance with the schedule indicated in the national Codes of Practice.
§
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.
5. SAFETY WARNINGS
WARNING!
The installation, adjustment, and servicing of this appliance must be carried out by a competent, qualified 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!
NEVER try to carry out any repairs or service work on the boiler on your own initiative.
Servicing or repairs of the appliance must be carried out by qualified service engineers;
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.
Modifications to parts connected to the appliance
Do not carry out any modifications to the following parts:
the boiler
to the gas, air, water supply pipes and electrical current
to the flue pipe, safety relief valve and to the central heating’s 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 On/Off gas cock
Open all windows and doors where the gas leakage has occurred
Inform 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.
3
Gasogen
Operating instructions
6 - OPERATING INSTRUCTIONS
6.1 - STANDARD CONTROL PANEL
32. Working thermostat
41. Main fuse (4A)
42. Boiler thermometer
11. Mains switch
12. Fan switch
13. System pump switch
31. Safety thermostat
IMPORTANT!
Before connecting the control panel to the mains,
check that all the switches are in the ‘0’ position
and that the safety thermostat is “on”.
Boiler start-up
11
Using this switch you can connect or disconnect the boiler from
the mains electricity supply .
With the switch in the ‘0’ position the boiler is not
switched on (green led light off)
11
With the switch in the ‘I’ position the boiler is connected
to the mains electricity supply (green led light illuminated) and
is ready to operate.
The recycle pump functions.
Mode selection keys
12
13
With the switch nr. 13 you can connect or disconnect the system pump/boiler load from the mains electrical system.
With the switch in the ‘0’ position the system pump is
not switched on.
12
4
13
With the switch in the ‘II’ position the system pump is
connected to the mains electricity supply.
Operating instructions
With the switch nr. 12 you can connect or disconnect the fan
from the mains electrical system.
12
12
13
13
on.
With the switch in the ‘0’ position the fan is not switched
With the switch in the ‘I’ position the fan is connected to
the mains electricity supply but it will not run. It will start running only after the upper loading door has been closed.
Note:
The upper door is open in order to load the
wood and the fan is off. Proceed with igniting
the wood as described in paragraph 6.4.
The opening of the loading door activates a control timer, by
means of a microswitch, whose default value is of 30 minutes,
which can be increased by another 30 (this can only be carried out by qualified personnel).
If the boiler does not reach the minimum temperature (about
65°C)within the foreseen time (control timer), the fan and recycling pump will be turned off.
Panel connected to the mains electricity supply, but… the
boiler is not running.
Therefore repeat the lighting procedure.
Central heating temperature adjustment
32
The adjustment of the system water’s temperature in the GASOGEN G3 2S boiler is obtained by rotating the knob position
32 in a clockwise direction to increase the temperature and in
an antic-clockwise direction to lower it.
The temperature can be adjusted between 75°C minimum and
85°C maximum.
Activation of the safety thermostat
IMPORTANT: The GASOGEN G3 2S safety thermostat’s
activation command is positioned on the front of the control panel.
31
The thermostat in position 31 reactivates the wood fired boilers operation.
To gain access to it in case the boiler goes into lock-out, unscrew the plastic cap with the help of a screwdriver; after having reset it, replace the plastic cap.
5
Gasogen
Operating instructions
The safety thermostat may intervene in case of
boiler overheating. You can avoid this by lowering the working thermostat (see previous
point).
If the boiler’s safety thermostat intervenes often do not try to
relight the boiler yourself. Contact your nearest Unical authorized After Sales Service Centre.
Central heating system pressure
If it is an open circuit system the pressure does not have to be
restored as this occurs automatically via the water level regulator inside the water tank.
If it is a sealed circuit system (refer to local regulations where
this type of installation is permitted), the pressure will have to
be restored via the mains connection cock, re-pressurizing the
system, when the boiler is cold, to 1,2/1,3 bar.
When the correct pressure has been reached, by checking the
value indicated in the pressure gauge installed in the system,
close the filling cock.
6
Operating instructions
6.2 - OPTIONAL CONTROL PANEL
11. Mains switch
12. Fan switch
13. System pump switch
18. Test key (chimneysweeper mode)
22. Selector switch (0) wood (I) gas/oil
23. Back-up burner switch
31. Safety thermostat
32. Boiler temperature adjustment (75° ÷ 85°C)
41. Main fuse (4A)
42. Boiler thermometer
— Acoustic visual led alarm
NOTE!
The test key in position 18 (which can only be used by qualified service engineers) permits you to check the correct
operation of the flue evacuation fan (in temporary mode) without the fan’s activation switch in position 12 being activated.
The boiler’s control panel must be connected to the mains electricity supply via the general switch in position 11.
IMPORTANT!
Before connecting the control panel to the mains, check
that all the switches are in the ‘0’ position and that the
safety thermostat is “on”.
Boiler start-up (wood firing mode)
11
Using this switch you can connect or disconnect the boiler from
the mains electricity supply .
With the switch in the ‘0’ position the boiler is not
switched on (green led light off)
11
With the switch in the ‘I’ position the boiler is connected
to the mains electricity supply (green led light illuminated) and
is ready to operate.
The recycle pump functions.
7
Gasogen
Operating instructions
Mode selection keys (wood firing mode)
With the switch nr. 13 you can connect or disconnect the system pump/boiler load from the mains electrical system.
12
13
With the switch in the ‘0’ position the system pump is
not switched on.
12
13
With the switch in the ‘II’ position the system pump is
connected to the mains electricity supply.
With the switch nr. 12 you can connect or disconnect the fan
from the mains electrical system.
12
13
on.
With the switch in the ‘0’ position the fan is not switched
With the switch in the ‘I’ position the fan is connected to
the mains electricity supply but it will not run. It will start running only after the upper loading door has been closed.
12
13
With the switch 22 it is possible to select the operation mode
(wood or the back-up gas or oil fired boiler).
-
22
23
Place the switch into the’0’ position (wood firing mode)
Note:
The upper door is open in order to load the
wood and the fan is off. Proceed with igniting
the wood as described in paragraph 6.4.
The opening of the loading door activates a control timer, via
a microswitch, with a 30 minutes default value, which can be
increased by another 30 (this can only be carried out by qualified personnel).
If the boiler does not reach the minimum temperature (about
65°C) within the foreseen time (control timer), the fan and recycling pump will be turned off.
Panel connected to the mains electricity supply, but… the
boiler is not running.
Therefore repeat the lighting procedure.
8
Operating instructions
Back-up boiler start-up (gas/oil firing mode)
Using this switch you can connect or disconnect the back-up
boiler linked to the GASOGEN G3 2S from the control panel .
With the switch in the ‘0’ position the back-up boiler is
not switched on (green led light off)
11
With the switch in the ‘I’ position the back-up boiler is
connected to the mains electricity supply (green led light illuminated) and is ready to fire (wood or gas/oil – refer to following points.
The recycle pump functions.
11
Mode selection keys (gas-oil firing mode)
With the switch nr. 13 you can connect or disconnect the system pump/boiler load from the mains electrical system.
12
13
With the switch in the ‘0’ position the system pump is
not switched on.
With the switch in the ‘II’ position the system pump is
connected to the mains electricity supply.
12
13
Note:
The upper loading door must be closed.
22
23
With the switch 22 it is possible to select the operation mode
(wood or the back-up gas or oil fired boiler).
-
22
23
With the switch nr. 23 you can connect or disconnect the burner (gas or oil) from the mains electrical system.
-
22
23
Place the switch into the ‘I’ position (gas/oil firing mode)
With the switch in the ‘0’ position the burner is not fired.
With the switch in the ‘II’ position the burner is connected
to the mains electricity supply.
The recycle pump is not running.
9
Gasogen
Operating instructions
Boiler start-up (wood firing mode with automatic switching over to gas or oil firing mode when
the wood load has been consumed)
Using this switch you can connect or disconnect the back-up
boiler linked to the GASOGEN G3 2S from the control panel .
With the switch in the ‘0’ position the back-up boiler is
not switched on (green led light off)
11
With the switch in the ‘I’ position the back-up boiler is
connected to the mains electricity supply (green led light illuminated) and is ready to fire (wood or gas/oil – refer to following points.
The recycle pump functions.
11
Mode selection keys (wood + gas/oil firing mode)
With the switch nr. 13 you can connect or disconnect the system pump/boiler load from the mains electrical system.
12
13
Set the switch in the ‘II’ position, the system pump is
powered electrically.
With the switch nr. 12 you can connect or disconnect the fan
from the mains electrical system.
12
13
Set the switch in the ‘I’ position, the fan is powered
electrically but it will not run. It will start running only after the
upper loading door has been closed.
With the switch 22 it is possible to select the operation mode
(wood or the back-up gas or oil fired boiler).
O
V
I
22
23
-
Set the switch into the’0’ position (wood firing mode)
With the switch nr. 23 you can connect or disconnect the burner (gas or oil) from the mains electrical system.
22
23
Set the switch in the ‘II’ position, the burner will be automatically powered.
Automatic switching over is triggered when the wood fired
boiler’s temperature falls below 65°C due to the fact that there
is no wood left in the fire box, and therefore the back-up gas or
oil boiler is activated, and the recycle pump is arrested.
Reinstatement of the initial operating conditions will occur when
the boiler’s loading door is opened or by removing and then
re-establishing the power supply to the control panel.
10
Operating instructions
Central heating temperature adjustment
32
The adjustment of the system water’s temperature in the
GASOGEN G3 2S boiler is obtained by rotating the knob in
position 32 in a clockwise direction to increase the temperature and in an antic-clockwise direction to lower it.
The temperature can be adjusted between 75°C minimum and
85°C maximum.
You can adjust the system water’s temperature in the backup oil/gas boiler via the knobs on the boiler’s control panel
Activation of the safety thermostat
IMPORTANT: The GASOGEN G3 2S safety thermostat’s reset is positioned on the front of the control panel.
The thermostat in position 31 reactivates the wood fired boilers operation.
To gain access to it in case the boiler goes into lock-out, unscrew the plastic cap with the help of a screwdriver; after having reset it, replace the plastic cap.
31
The safety thermostat can intervene in case of boiler temperature overheating.You can avoid this happening by lowering the
working thermostat (see above).
If the boiler’s safety thermostat intervenes
often do not try to relight the boiler yourself. Contact your nearest Unical authorized
After Sales Service Centre.
Central heating system pressure
If it is an open system design the pressure does not have to be
restored as this occurs automatically via the water level regulator inside the water tank.
If it is a sealed circuit system (refer to local regulations where this type of installation is permitted), the pressure will have to be restored
via the mains connection cock, re-pressurizing
the system, when the boiler is cold, to 1,2/
1,3 bar.
When the correct pressure has been reached, by checking
the value indicated in the pressure gauge installed in the
system, close the filling cock.
If you need to re-pressurize the system often we recommend you contact your nearest Unical authorized After Sales Service
Centre.
11
Gasogen
Operating instructions
6.3 - CHECKS TO CARRY OUT BEFORE FIRING
THE BOILER
Before firing the boiler carry out the following checks:
- Check that the On-Off gas valve, positioned upstream of
the boiler, is in the On position (back-up boiler with burner
operating with gas).
- Check that any On-Off valves fitted on the flow and return
pipes for servicing purposes are in the On position.
- Check that any On-Off valves fitted on the cold water inlet
for servicing purposes are in the On position.
- Check that the safety relief valves are connected to the
sewage system.
-
-
-
-
Check that the boiler is connected to the electrical supply;
the main switch in position 11 on the control panel must be
illuminated when set to ‘I’.
Check the heating system pressure, indicated by the pressure gauge (refer to ‘Central heating system pressure’). For
correct operation the pressure should be between 1 and
1,2 bar (with the pump not running).If the pressure falls
below 1 bar, when the system is cold, re-pressurise the
system by regulating the filling valve.
Check that the by-pass is open when the door is opened
and/or the correct operation via a pushing rod, which can
be found on the right hand side of boiler body, and controls
the microswitch, which in turn consents fan operation.
Check fan operation with the loading door closed.
Shutting down the boiler
If the boiler is completely shut down, the DHW mode will be
completely disenabled.
To completely shut down the boiler remove the power supply
by opening the contact on the bi-polar switch upstream of the
boiler and setting the switch ‘11’ in the ‘0’ position: the led will
be unlighted.
Place the On/Off gas cock into the Off position (eventual backup boiler with gas operating burner) and turn the cold water
supply cock into the Off position.
6.4 - BOILER START-UP
Ensure yourself that all the checks listed in the paragraph 6.3
have been carried out. Open the upper loading door and place
on the main stone, above the central slot, some dry wood, in a
crosswise arrangement.
Use easily inflammable material, avoiding big or squared logs.
Open the lower door.
Using thin paper (newspapers or magazines) light the fire.
Close the door, leaving it slightly ajar.
Wait a few minutes until the fire starts and the some embers
are produced (about 5-10 minutes).
Close the lower door, close the upper door and start the fan
(see point 6.1).
After a few minutes, looking through the sight glass on the
lower door you will see that the flame is beginning to reverse
downwards, at this point add some bigger logs.
Important: during boiler operation the by-pass must always
be perfectly closed.
The wood logs must be of the following size:
a) 50 cm (+ 1 cm, - 4 cm)
for the GASOGEN G3 25/40 2S models
b) 70 cm (+ 1 cm, - 4 cm)
for the GASOGEN G3 50/60 models
c) 100 cm (+ 1 cm, - 4 cm)
for the GASOGEN G3 80 2S
This dimension must be stringently respected.
In order to have a good combustion it is essential that the wood
falls down in a uniformed way.Therefore it is necessary to make
sure that the length of the wood logs introduced, their shape
and the way they are loaded does not prevent the wood from
falling down in a regular way.
The wood logs must be placed in a lengthwise and a horizontal position.
No logs must be placed in an oblique or slanted direction.
SUBSEQUENT WOOD LOADINGS
WARNING!
The heating system can be effectively protected from frost by using specific antifreeze products suitable for multi metal heating
systems.
Do not use anti-frost products designed for
motor vehicles because they could seriously damage the water sealing gaskets.
Before filling the boiler with a new load of wood, use up the
previous one as much as possible.
The boiler can be filled with a new load when the bed of embers is about 5 cm thick.
Slowly open the upper loading door and the inner anti smoke
flap.
The wood logs must have the length specified in the previous
paragraph and they must be placed as previously described.
12
Operating instructions
USEFUL SUGGESTIONS and LOADING ERRORS
TO BE AVOIDED
6.5 - COMBUSTION AIR ADJUSTMENT
PRIMARY AND SECONDARY AIR ADJUSTMENT
- Logs too long do not fall down properly and can cause obstructions.
The GASOGEN G3 25/ and 50 2S models are equipped
with a fan control box for combustion air (pos. 1), with an
air distributor, and with primary (pos. P) and secondary air
adjusters. (pos. S).
- Logs too short cause irregular air passages, with consequent
reduction in output and efficiency.
- In case the quality of the wood causes “obstructions” it could
become necessary to cut the wood logs in two parts in order
that the total length “L” is as indicated in the previous paragraph.
- Always open the upper door slowly in order to avoid blowbacks and smoke formation.
During normal boiler operation it is absolutely forbidden to open the lower combustion
door.
S1
P1
P1
C
S
P
S
C
S
P
P1
S1
CUT
Fan control box
Secondary air adjusting screws
Primary air adjusting screw
Primary air passages
Secondary air passages
The GASOGEN G3 65 2S and GASOGEN G3 80 2S models
are equipped with two fan control boxes for combustion air
(pos. 1), the top one (P) for the primary air inlet and the
bottom one (S) for the secondary air inlet, air distributors,
and metal ring adjusters. (pos. 1).
P
S
1
P = Primary air box
S = Secondary air box
1= Metal ring air adjuster
During the first ignition it is necessary to adjust the primary
and secondary air, keeping in mind that the primary air
determines the boiler’s output and therefore the quantity of
wood bur nt, whilst the secondary air completes the
combustion.
13
Gasogen
Operating instructions
For correct air adjustment it will be necessary to observe the
flame through the sight glass, placed on the lower door. The
flame will have to occupy about two thirds of the combustion
chamber, and will have to quietly lick the lower cradle, without
moving the ash too much and without making any noise.
The flame must be an orange-pink-white colour, not too
transparent and with the centre part veering to light blue.
- If the chimney smokes - open the secondary air S completely.
- If the chimney continues smoking - adjust the secondary
air S to maximum and reduce the primary air. P.
AIR ADJUSTMENT FAULTS
The GASOGEN G3 25/40 and 50 2S models: to bring the
flame to optimal conditions, it will therefore be necessary to
regulate the primary air by screwing or unscrewing the screw
(pos. P); the same operation must be carried out for the
secondary air with the screws placed in position S.
The GASOGEN G3 65 2S and GASOGEN G3 80 2S models:
to bring the flame to optimal conditions, it will therefore be
necessary to regulate the primary air by screwing or
unscrewing the metal ring nut (pos. 1) on the air distributor;
the same operation must be carried out for the secondary air
on the second air distributor.
Example n.1
Thick, wet wood logs = difficult combustion
S - Very closed (try to get the maximum dimension of the flame,
but not a reddish colour).
P - Reasonably open in order to obtain a sufficient gasification.
2) If the primary air is insufficient the flame will be slow,
indecisive, influenced by air currents and by the chimney draught, very small, incapable of touching the lower cradle, with
low ash production and the door’s refractory insulation will be
of a dark colour.
3) If the secondary air is excessive the flame will be small, a
blueish colour and very transparent.
4) If the secondary air is insufficient the flame will be big, it
will touch the lower cradle, it will completely fill the combustion
chamber and, above all, it will be a red colour and not transparent
Example n. 2
Very inflammable wood logs
S - Completely open.
P - Slightly closed to reduce the gasification, but sufficiently
open to evacuate the ash that can close the combustion head.
6.6 - CHECKS TO CARRY OUT AFTER THE
FIRST START-UP
GENERAL SUGGESTIONS
SOUNDNESS CHECK
Better performances are obtained after two - three days of operation. The refractory cement, in fact, needs to be baked and
the tar has to cover the upper part of the fire box.
During the first start-up check the soundness of the seals of
the flue circuit and the chimney connection.
If you notice smoke leakages inform the installer or the After
Sale Service. If you notice air
suctions through the door’s seals, close the door handle with
greater strength.
Check the normal operation of the working thermostat Te (32)
at full until it arrests the fan.
Check there are no water leaks from the water connections.
After the first start-up, with the boiler OFF, open the lower door
and inspect the internal walls and the door insulation which
has to be of a white colour, indication of a correct air adjustment.
On the contrary, if the walls are blackened, it means that the
secondary air is not working properly (paragraph 6.5).
- The flame has to have good dimensions and reasonably
fill-up the combustion chamber.
- The flame must not be too red (lack of secondary air S).
- The flame must not be too blue (excess of secondary air S).
- The flame must not be too noisy (excess of primary air P).
- The flame must not be too small (lack of primary air P).
- If the ash does not falls down properly - increase the primary air P.
- If too much ash falls down - reduce the primary air P.
14
1) If the primary air is excessive a lot of ash and small pieces of coal will fall through the slot into the combustion chamber. The flame is too fast, dry, a cold colour and makes a noise.
The boiler is consuming a lot of wood and the door’s refractory
insulation is white.
Operating instructions
6.7 - WARNINGS
HOW TO AVOID CORROSION IN THE FIRE WOOD BOX
The use of wood with a high moisture content (higher than
about 25%) and/or loadings not proportioned to the system’s heat request (long OFF periods with the wood storage full) can cause considerable condensate formation
in the fire box’s internal wall.
Check, once a week, the internal steel walls of the fire box.
They must be covered by a slight layer of opaque coloured,
dry tar, with bubbles inclined to break and fall off.
On the contrary, if the tar is bright, runny and, if removed with
the fire stoke, some liquid appears, it is necessary to use wood
with a lower moisture content and/or reduce the quantity of the
wood when loading the boiler.
If, in despite of these interventions the tar does not dry, you
must inform the local After Sales Service of this.
The condensate inside the fire box causes the corrosion of the
steel plates.
Corrosion is not covered by the guarantee, because it is caused by a bad use of the boiler (wet wood, excessive loadings,
etc.).
CORROSION IN THE FLUE CIRCUIT
The flue is rich in water steam, due to combustion and the use
of wood which always retains water.
If the flue comes into contact with relatively cold surfaces (with
a minimum temperature of about 60 - 70 °C), the steam water
condensates and, in combination with other combustion products, originates corrosion phenomena of the metallic parts.
Every day check if there are signs of smoke condensation (black
liquid on the floor, behind the boiler). In this case you must use
a wood with a lower moisture content; check that the recirculation pump is working correctly, the flue temperature at part
load, and increase the working temperature.To control the room
temperature it is therefore necessary to install a mixing valve.
The corrosion caused by flue condensation is not covered by the guarantee, because it is caused by the wood’s
moisture content and the way the boiler is used.
Always open the upper loading door and the internal antismoke flap slowly.
If, in despite of these precautions, some blow back will occur,
it will be necessary to use bigger pieces of wood, with a higher
moisture content, and to check that the boiler does not remain
unused for a long time (reduce the primary air - paragraph 6.5)
and make sure that the possible distortion of the cast iron fire
bars or the modification of the stainless steel grates or that the
presence of extraneous bodies (nails, metallic pieces) has not
obstructed the refractory burner’s slot.
6.8 - SUMMER OPERATION
Use of the boiler in summer for the production of only domestic hot water is not advised, unless you follow these rules
meticulously:
1) Use very dry wood
2) Do not load the boiler with too much wood, load the boiler
partially, 2 or 3 times per day ,according to need.
Important.
It is absolutely wrong to load the boiler completely so as to
gain very long working periods (for
example 24 hours). Doing so the boiler (when the fan is OFF)
will produce a lot of acid condensate
and corrode the fire box.
PRECAUTIONS TO TAKE DURING BOILER OPERATION
After every air adjustment , wait 5 to 10 minutes before making
a new adjustment. Once the best adjustment has been established, at the end of the day check that the surfaces of the
combustion chamber and the door insulation are of a white
colour.
In the ash deposited in the cradle there must be only a few
unburnt embers. If the primary air is in excess, in the ash there
will be embers and small pieces of coal, the flame will burn
fast, be dry, have a cold colour and be noisier, and the output
will be excessive (paragraph 6.5).
If the primary air is insufficient the flame burn slowly, be small,
it will not touch the lower cradle and it will drag little ash; the
output will be insufficient.
If the flame is a dark orange colour, the secondary air is insufficient and the surfaces of the combustion chamber will not be
a white colour; if it is small and blue there is too much secondary air.
15
Gasogen
Operating instructions
6.9 - SERVICING
Danger !
Before servicing the boiler, make sure the
boiler and its components has cooled down.
Warnings
In this case:
1) Check the adjustment of the air setting, according to the
instructions given in the paragraph “Combustion air adjustment”.
2) Check that the two holes for the secondary air, placed in the
front part of the main stone, just in front of the two adjustment
screws, are not obstructed; if they are, pass a soft brush in
both the holes, as shown in the following figure.
Do not drain any water from the boiler, even only partially, unless absolutely necessary. Periodically check that the chimney is working correctly and that it is in good condition.
Do not clean the boiler and/or its parts with easily inflammable
products (gasoline, alcohol, etc.).
Do not leave inflammable products in the room where the boiler is installed.
Do not clean the boiler room when the boiler is firing.
IMPORTANT
For cleaning the boiler use brushes and a
vacuum cleaner. If pieces of cloths are used
make sure they are all recovered.
Always keep the screws and nuts protected
with grease.
CLEANING AND ORDINARY MAINTENANCE OF THE
WOOD FIRED BOILER
Check that the fire bars and the steel grate are positioned
correctly in their housing and that the side wool insulation is in
place.
Every day
- Remove the ash from the lower cradle.
- Remove, with the help of the scraper supplied with the boiler,
the embers so that the ashes, accumulated in the fire bed will
fall down through the holes in the grate.
This operation will help to avoid the grate becoming obstructed
and the subsequent bad operation of the boiler. This operation
has to be carried out when there is not much flame, and, in
any case, before wood loading.
Every week
- Remove carefully all the residues of combustion accumulated in the fire box.
- Clean, with the brush supplied, the triangular passes of the
combustion chamber.
- Remove the ashes from the flue chamber via the side doors,
using the scraper.
- Make sure the grate’s slots are not obstructed; if so, free the
passages using the poker.
- If the boiler continues to operate badly, even after having
cleaned it as described above, it could be caused by bad distribution of the secondary air.
1.
2.
3.
4.
5.
Main stone
Side fire bars insulation
Front/rear fire bars insulation
Iron fire bars
Stainless steel grate
The iron fire bars and the steel grate are subject to wear;
we therefore recommend you to service the boiler at least
once a year, in order to avoid bad boiler operation.
Note: the above figure is generic, the quantity of the iron bars
and the steel grates can vary according to the boiler model.
16
Operating instructions
Every month
Check that the by-pass is working correctly.
The by-pass is a direct passage between the fire box and the
chimney. It is normally closed by a mobile shutter. The by-pass
is automatically opened or closed via a pushing rod when the
loading door is opened. In this way the smoke accumulated in
the firebox is aspirated and sent to the chimney directly. The
bypass, in conclusion, allows the smoke to be discharged at
the chimney without letting it escape from the upper loading
door when loading the wood or during lighting.
CLEANING AND ORDINARY MAINTENACE OF
THE BACK-UP GAS/OIL BOILER
At the beginning of every heating season
Call a service engineer to check and clean the boiler.
Burner control
The burner must be checked solely by persons authorized by
the burner manufacturer .
EXTRAORDINARY MAINTENANCE OF THE
WOOD FIRED BOILER
At the end of each heating season perform a general cleaning
of the boiler, taking care to remove all the ashes from the fire
box. During the summer season the boiler doors must be closed.
Cleaning the fan
WARNING:
This operation must be carried out only by
a competent qualified technician, as bad
maintenance will compromise good boiler
operation.
17
Gasogen
Operating instructions
6.10 - FAULT FINDING
WOOD FIRED BOILER WITH STANDARD CONTROL PANEL:
Problem:
The fan does not start
Remedy:
- Adjust the working thermostat (pos. 32) to maximum.
- Reset the safety thermostat (pos. 31).
Problem:
- The fan starts, but after 30 minutes it stops;
by switching OFF and ON the main switch (pos. 11) it re-starts.
Remedy:
- Increase the temporized relay’s intervention time (this has to
be done by the After Sales Service or by authorized trained
personnel after switching OFF the mains supply).
Problem:
- When opening the loading door there are blowbacks
and flue formation.
Remedy:
- Open the door slowly.
- Use wood with a higher moisture content; make sure the boiler does not remain unused for long periods (see paragraph
6.7).
- Use thicker wood logs.
- Use up all the wood before loading a new batch
Problem:
- The boiler does not reach the requested temperature.
The flame is small and there is too much air.
When the fire box is checked a formation of log bridges is found.
Remedy:
- Check the length of the wood logs (see paragraph 6.4).
- Check how the wood logs are loaded in the fire box (see
paragraph 6.4).
- Cut the logs in two parts (see paragraph 6.4).
- Use smaller logs (round or square, 5 to 7 cm diam. )
- Mix medium-large sized logs (15-20 cm diam.)with small sized logs (see previous point).
Problem:
- The boiler does not reach the requested temperature. The
flame is too small.
Remedy:
- Check if the by-pass is closed.
- Check the fan
- Check if the doors are properly closed
18
If you cannot solve the problem, do no attempt
any other interventions and contact an authorized UNICAL After Sales Service.
Operating instructions
WOOD FIRED BOILER WITH OPTIONAL CONTROL PANEL:
Problem:
The fan does not start
Remedy:
- Adjust the working thermostat (pos. 32), turning the knob in a
clockwise direction to maximum.
- Reset the safety thermostat (pos. 31).
If you cannot solve the problem, do no attempt
any other interventions and contact an authorized UNICAL After Sales Service.
Problem:
- The fan starts, but after 30 minutes it stops; by switching
OFF and ON the main switch (pos. 11) it re-starts.
Remedy:
- Increase the TIMER 1 intervention time (this operation has to
be carried out by the After Sales Service or by authorized trained personnel after switching OFF the mains supply).
Problem:
- When opening the loading door there are blowbacks and flue
formation.
Remedy:
- Open the door slowly.
- Use wood with a higher moisture content; make sure the boiler does not remain unused for long periods (see paragraph
6.7).
- Use bigger logs.
- Use up all the wood before loading a new batch
Problem:
- The boiler does not reach the requested temperature.
The flame is small and there is too much air.
When the fire box is checked a formation of log bridges is found.
Remedy:
- Check the length of the wood logs (see paragraph 6.4).
- Check how the wood logs are loaded in the fire box (see
paragraph 6.4).
- Cut the logs in two parts (see paragraph 6.4).
- Use smaller logs (round or square, 5 to 7 cm diam. )
- Mix medium-large sized logs (15-20 cm diam.)with small sized logs (see previous point).
Problem:
- The boiler does not reach the requested temperature. The
flame is too small.
Remedy:
- Check if the by-pass is closed.
- Check the fan
- Check if the doors are properly closed
19
Gasogen
Spare parts
1
2
3
4
5
GASOGEN G3 25 2S
GASOGEN G3 40 2S
GASOGEN G3 50 2S
7
9
6
8
10
2
1
2
3
4
5
7
8
9
6
7
8
10
GASOGEN G3 65 2S
GASOGEN G3 80 2S
20
2
Spare parts
11
12
13
16
17
15
14
GASOGEN G3 25 2S
GASOGEN G3 40 2S
GASOGEN G3 50 2S
GASOGEN G3 65 2S
GASOGEN G3 80 2S
21
Gasogen
BOILER MODEL
COMPONENT
POS.
Part n°
DESCRIPTION
GASOGEN
G3 25 2S
GASOGEN
G3 40 2S
GASOGEN
G3 50 2S
GASOGEN
G3 65 2S
GASOGEN
G3 80 2S
m. 1,2
m. 1,45
m. 1,45
m. 1,6
m. 1,6
1
20446
Fibre glass gasket 16x21
2
IMP0010
Grip M8
X
X
X
X
X
3
MAN0010
Handle grip
X
X
X
X
X
4
VOL0010
Handle
X
X
X
X
X
5
20446
Fibre glass gasket 16x21
m. 1,4
m. 1,65
m. 1,65
m. 1,8
m. 1,8
6
GAM0010
Gasket diam. 24,5x10x3
X
X
X
X
X
7
GRP2021
Fan fixing kit
X
X
X
X
X
8
VNT0002
Fan
X
X
X
X
X
9
20446
Fibre glass gasket 16x21
m. 1
m. 1,2
m. 1,2
m. 1,5
m. 1,5
10
16649
Tempered glass diam- 29,5x4
X
X
X
X
X
11
11546
Steel fire bars kit
X
11
11547
Steel fire bars kit
11
11548
Steel fire bars kit
11
KIT0467
Steel fire bars kit
11
KIT0482
Steel fire bars kit
12
26952
Stone- cast iron bars insulation kit
12
26953
Stone- cast iron bars insulation kit
12
26954
Stone- cast iron bars insulation kit
12
26955
Stone- cast iron bars insulation kit
12
26956
Stone- cast iron bars insulation kit
13
12344
Cast iron bars +insulation kit
13
12346
Cast iron bars +insulation kit
13
12348
Cast iron bars +insulation kit
13
12350
Cast iron bars +insulation kit
13
12352
Cast iron bars +insulation kit
14
PUC0420
Triangular scraper
X
15
37352
Catalyst kit
X
15
37353
Catalyst kit
15
37354
Catalyst kit
15
37355
Catalyst kit
15
37356
Catalyst kit
16
11930
Inspection door kit
X
X
X
X
X
17
11929
Flue chamber inspection door
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
WARNING: For a correct and quick processing of your orders, when ordering spare parts for your GASOGEN G3 2S boiler,
please always quote the following information: Part number, Description, Quantity requested, Boiler model. If you need any
parts not indicated in the above list, please contact an authorized Unical After Sales Service
22
51 Assembly Tullamarine Vic 3043 Australia
PO Box 356 Tullamarine Vic 3043 Australia
Telephone +61 3 9330 3300 Facsimile +61 3 9310 5655
Email sales@automaticheating.com.au
www.automaticheating.com.au
Automatic Heating Pty Ltd ABN 90 446 545 923
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