Baxi Slim 1.230 FiN Use and care manual

Gas boilers with a cast-iron base,
sealed chamber, automatic ignition
and electronic fl ame modulation
User and Installer Manual
BAXI S.p.A., one of the leading European companies in the production of heating and hot-water appliances for household use
(wall-mounted gas boilers, free-standing boilers and electric water heaters) has obtained CSQ certifi cation in accordance with
UNI EN ISO 9001 standards.
This certifi cation confi rms that the Quality System of
BAXI S.p.A. in Bassano del Grappa, where this boiler was manufactured,
satisfi es the strict UNI EN ISO 9001 standard covering all aspects of company organisation, manufacturing and distribution.
UNI EN ISO 9001
CERTIFICAZIONE DEI SISTEMI
QUALITA' DELLE AZIENDE
Fi - FiN

Dear Customer,
We are sure your new boiler will comply with all your requirements.
Purchasing one of the BAXI products satisfies your expectations: good functioning, simplicity
and ease of use.
Read these instructions fully before installing or using the appliance: you can find useful
information, which will help you to run your boiler correctly and efficiently.
BAXI boilers bear the CE mark in compliance with the
essential requirements as laid down in the following
Directives:
- Gas Directive 90/396/CEE
- Performance Directive 92/42/CEE
- Electromagnetic Compatibility Directive 89/336/CEE
- Low voltage Directive 73/23/CEE
Do not leave any parts of the packaging (plastic bags, polystyrene, etc.) within children’s reach as they are a potential source of danger.

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1 General Information pag. 4
2 Instruction prior to installation 4
3 Instruction prior to commissioning 4
4 Commissioning of the boiler 5
5 Room temperature adjustment 6
6 Turning off the boiler 6
7 Filling the boiler 6
8 Emptying the boiler 6
9 Prolonged standstill of the system 6
10 Safety devices indicators – meaning – 7
11 Gas conversion 7
12 Servicing instructions 7
CONTENTS
Instructions
pertaining to the user
Instructions
pertaining to the installer
1 Overall dimensions 8
2 General information 9
3 Instructions prior the installation 10
4 Installation 10
5 Electrical connection 16
6 Electrical diagram 17
7 Room thermostat connection 18
8 Connecting a programming timer 19
9 Domestic hot water storage tank connection 20
10 Connection of the external probe 24
11 Connection of the climatic regulator QAA73 25
12 Air vent and release of the pump 27
13 Regulation on the electronic card (PCB) 27
14 Gas conversion 28
15 Table of gas consumption and injectors 29
16 Regulation and safety devices 30
17 Check of combustion parameters 30
18 Specifications of flow rate/head at the plate 31
19 Hydraulique resistance performances 31
20 How to service and clean the boiler 31
21 Technical data 32

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2. Instructions prior to
installation
This boiler is designed to heat water at a lower than boiling temperature
at atmospheric pressure.
The boiler must be connected to a central heating system and to a DHW
distribution system, in compliance whit its performances and heat
output.
Have the boiler installed by a Qualifi ed Service Engineer and ensure the
following operations are accomplished:
• Accurate purging of the whole pipe work in order to remove any
deposits.
• Careful checking that the boiler is fi t for operation with the type of
gas available. For more details see the notice on the package and the
label on the appliance itself.
• Careful checking that the fl ue terminal draft is appropriate, that the
terminal is not obstructed and that no other appliance exhaust gases
are expelled through the same fl ue duct, unless the fl ue is especially
designed to collect the exhaust gas coming from more than one ap-
pliance, in conformity whit the laws and regulations in force.
3. Instructions prior to
commissioning
First commissioning of the boiler must be carried out by an authorized
Service Engineer. Ensure the following operations are carried out:
• Compliance of boiler parameters with (electricity, water, gas) supply
systems settings.
• Compliance of installation with the laws and regulations in force.
• Appropriate connection to the power supply and grounding of the
appliance.
Electrical safety of the appliance is only guaranteed by correct groun-
ding, in compliance whit the applicable laws and regulations.
The boiler must be electrically connected to a 230 V single-phase +
earth mains with the three-wire cable supplied, observing the polarity
LIVE (L) - NEUTRAL (N).
Use a double-pole switch with a contact separation of at least 3mm
In both poles.
In case you replace the power supply cable fi t a HAR H05 VV-F 3x1
mm2 cable with an 8 mm diameter max.
The following instructions give important information for the commission
and the use of the device.
The remarks and technical instructions, addressed to Service Engineers
to help them to carry out a faultless installation, will be contained in the
second part of this manual.
1. General description
The SLIM boilers are high-effi ciency gas boilers with a cast-iron base,
sealed combustion circuit, forced ventilation, direct burner ignition,
electronic ionizing fl ame control and electronic modulation of the gas
fl ow rate, to be used as generators in single-family hot-water heating
systems.
The SLIM series is made in two versions.
Instructions pertaining to the user
TABLE I
Ia: FiN models without plumbing accessories
boiler nominal heating reduced heating num. exchanger
models power power elements
kW kW
1.230 FiN 22,1 11,8 4
1.300 FiN 29,7 14,9 5
Fi models with plumbing accessories
boiler nominal heating reduced heating num. exchanger
models power power elements
kW kW
1.230 Fi 22,1 11,8 4
1.300 Fi 29,7 14,9 5

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4. Commissioning of the
boiler
To have access to the control system of the boiler, open the transparent
panel which covers the control panel. The panel rotates down.
To open the upper door of the boiler pull on its upper corners so that the
door will be released from the outer casing.
To correctly light the boiler proceed as follows:
• Provide power supply to the boiler;
• Open the gas cock;
• Verify that the system is full of water and the pressure is the right one
(see point 7);
• Turn the selector switch (ref. 1 fi gure 1) to set the boiler on winter
operation.
• Regulate the room thermostat (if present) at the desired temperatu-
re.
• Set the Central Heating regulation knob (ref. 2 fi gure 1) in order to
have the boiler at the desired temperature.
For a better energy saving we suggest you to set the regulation knobs in
the “COMFORT” position, environment conditions permitting.
Important: when selector is set to Winter (ref. 1 fi gure 1) you have
to wait few minutes every time the heating regulation device switches
off the burner (ref. 2 fi gure 2). If you want the burner to switch on im-
mediately, turn the selector in position (O) and then switch it again, in
winter position.
Warning: During fi rst commissioning, until the air inside the gas pipes
is not released, the burner may fail to light immediately and this may
cause a blockage of the boiler. Under such conditions we recommend
you to repeat the ignition procedure until gas is delivered to the burner,
briefl y setting knob (1) to position (ref. 1 fi gure 1).
4.1 Operation with Water Storage Tank Unit
The boiler water adjustment knob (Ref. 3 Figure 1) is only active when
there is a Tank unit. In this case it is possible to adjust the domestic
hot water temperature by turning the knob onto the required hot water
setting.
With the summer/winter selector set to winter mode , when the
water of the tank has reached the selected temperature, the boiler works
automatically for the heating system (priority is given to the domestic
hot water supply).
It is possible to exclude the sanitary mode just setting the knob (ref. 3
fi gure 1) to the minimum value, that corresponds to the anti-frost function
of the tank.
With the summer/winter selector set to summer mode , the burner is
alight and the tank’s pump works only when the temperature of the water
inside the tank is less than the value set with the DHW knob.
Picture 1: control panel of the boiler
Key:
1. Summer-Winter-Reset selector
2. Central Heating water regulation knob
3. DHW water regulation knob
4. Voltage presence indicator
5. DHW production mode indicator
6. Central heating mode indicator
7. Flame presence indicator
8. Gas block indicator
9. Overheating indicator
10. Blocked fl ue pressostat indicator
11. Blocked pressostat indicator (option)
12. DHW probe failure indicator options
13. Central heating probe failure indicator
14. Place for programming timer
8-9-10-11-12-13
Central heating thermometer
The domestic hot water function is only active
with the boiler unit
0401_2101
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