Nova Florida ALTAIR RTN 24, ALTAIR RTN 32, ALTAIR RTN E 32, ALTAIR RTN 18, ALTAIR RTN E 36 Installation, Use And Maintenance Manual

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Page 1

ALTAIR RTN

IST 04 C 126 - 01

BRAND NAME

INSTALLATION, USE AND

MAINTENANCE

Page 2

Dear Customer,

Thank you for choosing and buying one of our boilers. Please read these instructions carefully in order to install, operate, and maintain this equipment properly.

Page 3

This INSTRUCTION BOOKLET is an integral and essential part of this product and must be handed to the user by the installer for safekeeping and consultation when necessary. This instruction booklet is to be handed over with the equipment should it be sold or transferred.

The boiler must only be used for the purposes that are expressly foreseen. Any other use is to be considered improper and therefore dangerous.

The installation must be carried out in compliance with current standards and following the manufacturer’s instructions contained in this booklet. Incorrect installation may result in harm to people, animals, and/or property, and the manufacturer accepts no responsibility for such damage.

The unit must be installed in a room that is sufficiently well ventilated, in compliance with current standards and laws

The producer does not accept

any contractual or extra-contractual responsibility for any damage caused due to errors in installation or operation, or resulting from failure to follow the instructions below.

Before installing this equipment make sure that the technical data for the unit meet the requirements for its proper use in the plant.

Also check that the equipment is complete and that it has not been damaged in transit or during handling. Do not install any equipment that is clearly damaged and/or defective. Do not obstruct the air intake and/or heat dissipation grilles.

For all equipment with optional extras or kits (including electrical ones), only original accessories must be used.

When installing the equipment do not throw the packing away. All the materials can be recycled and must be taken to specific separated collection areas.

Keep the packing out of reach of children, as, by its very nature, it may constitute a source of danger.

Should the equipment break down and/or function defectively, switch it off and do not attempt to repair it yourself. Call in only qualified personnel.

Any repairs to this product must be made using only original spare parts. Failure to comply with the above may compromise the safety of the equipment and expose people, animals, and property to danger.

The owner is obliged to have routine maintenance carried out on the equipment once a year, as indicated in the programme given in the relevant section of this booklet, in order to ensure that it works efficiently and correctly

Where the equipment is not to be used for an extensive period of time, disconnect it from the electrical power supply and shut the fuel stopcock.

Where there is a danger of freezing, add antifreeze. Draining the system is not recommended as this may damage the overall system. For this purpose use non-freeze products specifically made for multi-metal heating equipment.

IMPORTANT

For equipment powered by gas fuel, if you smell gas in the area, proceed as follows:

- Do not activate any electric switches or start any electric equipment.

- Do not light any flames and do not smoke.

- Shut the central gas stopcock.

- Open all doors and windows.

- Contact a Service Centre, qualified installer, or the gas supply company. Using naked flames to check for gas leaks is completely forbidden.

GENERAL NOTES FOR THE USER AND THE INSTALLER

WARNING

This ALTAIR unit is built for installation in the destina- tion Country specified on the technical data plate.

Installation in any country other than that indicated may pose a danger to people, animals, or property.

Page 4

Warnings page 1

General notes for the installer, maintenance technician and user page 2

1 Instructions for the user page 4

1.1 Control panel page 4

1.2 Operating the boiler page 5

1.2.1 Switching on page 5

1.2.2 Switching off page 5

1.2.3 Burner cut-out page 5

1.2.4 Cut-Out do to overheating page 5

1.2.5 Cut-Out due to incorrect draught on the flue page 6

1.2.6 Cut-Out due to insufficient gas pressure (RTN 70/RTN 100) page 6

1.3 Maintenance page 6

1.4 Notes for the User page 6

2 Technical characteristics and dimensions page 7

2.1 Technical characteristics page 7

2.2 Dimensions page 8

2.3 Technical data page 9

3 Instructions for the Installer page 11

3.1 Installation standards page 11

3.2 Installation page 11

3.2.1 Packaging page 11

3.2.2 Choosing where to install the boiler page 11

3.2.3 Installing the boiler page 11

3.2.4 Ventilation of boiler rooms page 11

3.2.5 Smoke chimney system page 11

3.2.6 On-site measurement of combustion efficiency page 12

3.2.7 Connecting to the gas mains page 12

3.2.8 Connecting to the electrical mains page 12

3.2.9 Plumbing connections page 12

3.2.10 Installation of original kits page 12

3.3 Filling the system page 12

3.4 Starting the boiler page 13

3.4.1 Preliminary checks page 13

3.4.2 Starting up and switching off page 13

3.5 Wiring diagrams page 13

3.5.1 General layout page 14

3.5.2 Topographycal diagrams page 16

3.6 Gas Conversions page 18

3.6.1 Conversion from natural gas to LPG page 18

3.6.2 Conversion from LPG to natural gas page 18

4 Maintenance page 18

CONTENTS

Page 5

Main lit switch (green) (1)

When the switch is in the 0 position the boiler is switched off and the switch is not lit. When the switch is in the I position the boiler is switched on and the switch is lit.

Reset button (2)

When the reset button is pressed the boiler is restarted.

Temperature adjustment for the heating water (3)

This knob is used to set the temperature for the water in the heating system. It can be set between a minimum of 45°C and a maximum of 85°C.

Heating function LED (yellow) (4)

This LED indicates that the system is calling for heating.

Overheating cut-out LED (red) (5)

This light indicates that the cut-out connected to the safety thermostat has tripped due to malfunctioning. It must be reset manually.

Cut-out LED (red) (6)

(On all models) This light indicates that the smoke safety device has tripped due to a lack of draught on the flue (albeit only temporary) or low gas supply pressure (for models RTN 70 to RTN 100). It must be reset manually.

Burner cut-out LED (red, only “E” models) (7)

This light indicates that the burner safety device has tripped due to a malfunction.

Burner operation LED (yellow) (8)

This light indicates that the burner is operating.

Thermometer or pressure gauge (9)

The thermometer’s function is to indicate the temperature of the water in the boiler, while the thermometer / pressure gauge is used to indicate the pressure as well.

Safety thermostat manual reset (10)

The safety thermostat is used to protect the boiler in case of a fault. The thermostat reset button can be accessed by removing the protective cover.

1. INSTRUCTIONS FOR THE USER

1.1 CONTROL PANEL

1. General switch with line light (green)

2. Reset button

3. Temperature adjustment for the

heating water

4. Heating pump operation light (yellow)

5. Overheating cut-out LED (red)

6. LED to indicate cut-out due to no

draught on the flue or low gas

pressure (low gas pressure for models

RTN 70 to 100)

7. Burner cut-out LED (only “E” models)

8. Burner operation LED (yellow)

9. Water thermometer (models RTN

18 to RTN 48) or thermometer/pres-

sure gauge (for models RTN 60 to

RTN 100 and all PV models)

10.Safety thermostat manual reset

fig. 1

Page 6

1.2 Operating the boiler (Fig. 1)

1.2.1 Switching on

For “E” models

• Open the fuel stopcock.

• Switch the boiler’s main switch 1 to

the ON position (the switch lights up).

• Turn the heating water temperature adjustment knob

3 to set the tem-

perature required for the heating system.

• Set the ambient temperature using the ambient thermostat (if there is one).

• When the heating system calls for heat the heating request light

comes on.

• When the burner is operating, the burner operation light

8 comes on.

For models with a thermoelectric valve:

• Open the fuel stopcock.

• Make sure that the main switch is

in the OFF position (the switch is not lit up).

• Remove the front panel on the boiler. This allows access to the gas valve and the piezoelectric device and the pilot burner can be switched on.

• Turn the cover over the pilot burner so that it can be seen through the relevant hole.

• Pushing the gas valve knob gently, rotate it anti-clockwise from the • (off) position to the (pilot) position.

• Hold the knob down and push the piezo until the pilot burner is burning.

• Hold the knob down for about 20 seconds.

• After releasing the knob turn it anticlockwise to the (main burner) position.

• Put the cover plate for the pilot burner back in its original position.

• Replace the front panel on the boiler.

• Switch the boiler’s main switch 1 to

the ON position (the switch lights up).

• Turn the heating water temperature adjustment knob

3 to set the tem-

perature required for the heating system.

• Set the ambient temperature using the ambient thermostat (if there is one).

• When the heating system calls for heat the heating request light

comes on.

• When the burner is operating, the burner operation light

8 comes on.

Please Note: When igniting the bur-

ner after the boiler has been out of use for a long period of time, especially in the case of LPG boilers, there may be airlocks in the pipes. The boiler’s burner may cut-out a few times. Restart the burner using the reset button (see the following paragraphs).

1.2.2 Switching off

For “E” models

Set the main switch on the OFF position (the switch is not lit up). If necessary, shut the fuel stopcock.

For models with a thermoelectric valve:

On these models, when the main switch is on the OFF position (switch not lit up) the main burner is extinguished but the pilot burner stays alight. If you wish to extinguish the pilot burner as well, after setting the main switch to the OFF position, remove the boiler’s front panel and turn the gas valve knob to the • (off) position by turning it clockwise.

1.2.3 Burner cut-out

When any functioning faults arise the boiler’s burner cuts out automatically. On “E” models the cut-out light

7 comes on. Should this hap-

pen, proceed as follows:

• First check the fuel supply, make sure that the gas stopcock is open and that the gas mains have gas in them by lighting a cooking ring in the kitchen, for example.

• Having checked the fuel supply, reset the burner by pushing the reset button

2 on the control panel.

Models with a thermoelectric valve do not have any cut-out indication light. The boiler must be re-ignited as per instructions given in paragraph

1.2.1

and this can only be done 60 seconds after it has gone out (automatic safety device).

If the equipment does not restart and cuts out again, after trying three times contact an authorised Service Centre or qualified personnel to carry out maintenance. If the burner cuts out frequently this is a sign that there is an ongoing operating fault.

Contact qualified personnel or an authorised Service Centre for maintenance.

1.2.4 Cut-out do to overheating

Should the red cut-out light 5 indicating overheating come on, this means that the safety thermostat cut-out has tripped and must be reset manually. This is due to an operating fault and an authorised Service Centre or qualified personnel must be contacted for maintenance.

Page 7

1.2.5 Cut-out due to incorrect draught in the flue

Should conditions arise that lead to a faulty draught in the flue, the boiler cuts out and red light

6 comes on.

To restart the boiler proceed as follows:

• Switch the boiler’s main switch

1 to

the 0 position (the boiler is switched off and the switch is not lit up).

• Remove the front panel on the boiler.

• Push the button on the thermostat

that checks proper evacuation of smoke (fig. 2)

• Replace the front panel on the boiler.

• Switch the boiler’s main switch

1 to

the I position (the boiler is switched on and the switch is lit up).

WARNING If after resetting the boiler does not start working properly again and cuts out again, contact qualified personnel or an authorised Service Centre for maintenance.

1.2.6 Cut-out due to insufficient gas pressure (on models RTN 70 to RTN 100)

Should the gas supply pressure be insufficient, the boiler does not start up and red light

6 lights up.

If the unit remains in this state for any length of time, contact the gas supply company.

1.3 Maintenance

The user is obliged to have routine maintenance done on the boiler and the burner once a year. Correct maintenance of the boiler allows it to work under the best conditions, protects the environment, and makes the equipment fully safe for people, animals, or property.

The boiler must be maintained only by qualified personnel.

The user may only clean the casing on the boiler, and this must be done using products for cleaning furniture. Do not use water!

1.4 Notes for the user

The user is not authorised to remove the casing of the boiler and to work on parts inside. NOBODY, INCLUDING QUALIFIED PERSONNEL, IS AUTHORISED TO MODIFY THE BOILER.

Qualified personnel may install specific original kits on the boiler.

The producer accepts no responsibility for damage to people, animals, or property that may arise due to tampering or incorrect work done on the boiler

. The heating system can be effectively protected against freezing by using specific anti-freeze products that are suitable for multi-metal systems.

Do not use anti-freeze products for car engines, and check the effectiveness of the product over the time.

This boiler is fitted with a thermometer to allow you to check the water temperature.

fig. 2

Page 8

2.1 Technical characteristics

The ALTAIR RTN is a boiler with a high performance heat exchanger that works with gas burners at atmospheric pressure. The following models are available:

ALTAIR RTN E 18 and RTN 18 with a heat output of 18 kW. ALTAIR RTN E 24 and RTN 24 with a heat output of 24 kW. ALTAIR RTN E 32 and RTN 32 with a heat output of 31,5 kW. ALTAIR RTN E 36 and RTN 36 with a heat output of 36 kW. ALTAIR RTN E 48 and RTN 48 with a heat output of 48 kW. ALTAIR RTN E 60 with a heat output of 60 kW. ALTAIR RTN E 70 with a heat output of 70 kW. ALTAIR RTN E 80 with a heat output of 80 kW. ALTAIR RTN E 90 with a heat output of 90 kW. ALTAIR RTN E 100 heat output of 100 kW. RTN 18 to RTN 36 and RTN E 18 to RTN E 36 models of

ALTAIR boilers

can be supplied in a

PV version,

which means that they have a circulation pump and an 8 lit. expansion tank. ALTAIR RTN E boilers are equipped with an electronic card for checking the flame and have an electronic ignition (which is indicated by the addition of the letter E in the model name). The models from RTN 18 to RTN 48 are fitted with a thermoelectric valve and a piezoelectric ignition unit.

ALTAIR boilers meet the essential requirements laid down in EEC Directives for this product and Gas Directive 90/396/EEC dated 29th June 1990, Performance Directive 92/42/EEC dated 21st May 1992. EMC Directive 89/336/EEC dated 3rd May 1989, as amended by Directive 92/31/EEC dated 28th April 1992, European Community Low Voltage Directive 73/23/EEC dated 19th February 1973, as amended by Directive 93/68/EEC dated 22nd July 1993,

and they are fitted with all the safety devices called for in the current standards for this type of product.

The main technical characteristics of the

ALTAIR boiler are listed below.

• High-performance cast-iron heat exchanger.

• Insulation in glass wool with thick aluminized paper (50 mm).

• Casing in electrically galvanised steel plating, epoxy-polyester powder coated.

• Lit main switch.

• LED indications for: power on, hea-

ting pump operation, burner operation, overheating cut-out, cut-out due to lack of draught in the flue or low gas pressure (low gas pressure only RTN 70 to RTN 100 models) and burner cut-out (only “E” models).

• Heating temperature selector (45/85°C).

• Safety limit thermostat (110°C).

• Smoke safety thermostat.

• Minimum gas supply pressure

switch (models RTN 70 to RTN 100).

• Thermometer or thermometer/ pressure gauge (for models RTN 60 to RTN 100 and all PV models).

• System drain cock.

• Electrical system with printed elec-

tric circuit.

• Provision for the electrical connection of a heating pump.

• Can take a safety pressure switch to guard against insufficient water.

• Provision for the connection of a card for managing a remote water cylinder (optional kit).

• Provision for the connection of a climatic unit (optional kit).

• Provision for the connection of a card for managing three heating areas (optional kit).

• 8-lit. expansion tank (for PV models).

• Single-speed circulation unit (for PV models).

2. TECHNICAL CHARACTERISTICS AND DIMENSIONS

Page 9

L Delivery Return Gas Smoke Flue

(mm) M R G D (mm)

935 G1” 1/2 G1” 1/2 G1” 180 1052 G1” 1/2 G1” 1/2 G1” 180 1153 G1” 1/2 G1” 1/2 G1” 200 1280 G1” 1/2 G1” 1/2 G1” 220 1430 G1” 1/2 G1” 1/2 G1” 250

MODEL

RTN E 60 RTN E 70 RTN E 80 RTN E 90 RTN E 100

2.2 Dimensions

NOTE: in the PV models, equipped with circulation pump and expansion tank, R and M connection are G 3/4”

L Delivery Return Gas Smoke Flue

(mm) M R G D (mm)

525 G1” 1/4 G1” 1/4 G 3/4” 110 525 G1” 1/4 G1” 1/4 G 3/4” 130 625 G1” 1/4 G1” 1/4 G 3/4” 130 725 G1” 1/4 G1” 1/4 G 3/4” 150

MODEL

RTN 18/RTN E 18 RTN 24/RTN E 24 RTN 32/RTN 36 - RTN E 32/RTN E 36 RTN 48/RTN E 48

fig. 3

fig. 4

Page 10

MODELS

RTN E 18 RTN E 24 RTN E 32 RTN E 36 RTN E 48 RTN 18 RTN 24 RTN 32 RTN 36 RTN 48

89,6

89,2

2,3

0,2

8,2

105

400

110

45 - 85

230/50

5,8

110/120

2,2

2X0,27

9,5

2,11

6,3

110/120

1,25

0,5

1,6

26,6

90,9

91,1

2,2

0,2

6,9

105

520

130

45 - 85

230/50

5,5

110/120

2,5

2X0,27

11,0

2,81

6,9

110/120

1,50

0,5

2,1

31,5

34,4

90,9

89,0

0,2

7,1

138

13,4

680

130

45 - 85

230/50

6,4

120/130

2X0,27

9,5

3,64

8,2

120/130

1,7

0,5

25,5

2,7

39,2

90,83

90,75

0,2

7,2

138

13,4

770

130

45 - 85

230/50

6,5

120/130

3,0

2X0,27

12,0

4,15

8,7

120/130

1,8

0,5

26,8

3,1

52,8

91,84

90,4

1,8

0,2

6,4

173

16,8

1030

150

45 - 85

230/50

7,0

120/130

3,1

2X0,27

12,5

5,58

8,7

120/130

2,05

0,5

4,2

51BP2712

II2H3+

B11BS

l/h

bar

°C

V-Hz

°C

Kg/h

mbar

Stm3/h

°C

Kg/h

mbar

kg/h

EC Efficiency class

EC PIN

Category

Type

Heat output

Heat input

Performance at nominal load

Performance at reduced load (30%)

Maintenance losses ∆T=50

Flue losses with burner extinguished

Flue losses with burner working

N° of elements of the heat exchanger

Net weight

Water content

Minimum water flow

Smoke flue diameter

Maximum operating pressure

Working temperature

Electrical power supply

Electrical power

Fuse on power supply

Natural gas G20

CO2value

Smoke temperature

Smoke mass flow

Number of main burner nozzles

Diameter of main burner nozzles

Diameter of main pilot nozzle

Gas pressure at burner

Gas Flow (15°C / 1013 mbar).

Gas G30

CO2value

Smoke temperature

Smoke mass flow

Number of main burner nozzles

Diameter of main burner nozzles

Diameter of main pilot nozzle

Gas pressure at burner

Gas Flow (15°C / 1013 mbar).

★★

★★ ★★

★★

Page 12

3.1 Installation standards

This ALTAIR boiler must be installed in compliance with current laws and standards, which are taken as being an integral part of this booklet.

3.2 Installation

3.2.1 Packaging

ALTAIR

boilers are supplied packed in a strong cardboard box on a wooden pallet. On removing the cardboard box, make sure that the boiler is complete. The packing materials can be recycled. Dispose of them via specific waste collection sites.

Keep the packing out of the reach of children, as, by its very nature, it may constitute a source of danger.

The producer accepts no responsibility for damage to people, animals, or property due to failure to observe the instruction above.

The pack contains a packet in which you will find the installation, operation, and maintenance manual.

3.2.2 Choosing where to install the boiler

The following must be taken into account when choosing where to install the boiler:

• It is advisable to leave at least 50 cm on each side of the boiler to facilitate future maintenance.

• Do not install in damp or dusty rooms.

• The boiler room must not be accessible to outsiders, children, or animals.

3.2.3 Installing the boiler

Before connecting the boiler to the piping for the hot water and heating systems, clean the piping carefully to eliminate any metal residue left during working and welding, and any oil or grease that may be left and that could damage the boiler or alter its operation if it reaches the boiler.

NB: Do not use solvents, as these could damage the components.

The producer accepts no respon-

sibility for damage to people, animals, or property due to failure to observe the instructions above. To install the boiler proceed as follows:

• Remove the galvanised plate on the lower back part of the boiler.

• Unscrew the four screws which block the brackets fixing the boiler to the timber pallet (Fig. 5)

• Remove the boiler from the pallet without damaging it.

• Put spacers between the floor and the boiler’s feet if necessary, to make the installation stable.

• Connect the boiler to the system’s delivery and return pipes.

• Remember that the plumbing system must include all the safety and control elements required in terms of current standards (safety valve, water pressure switch, heat discharge valve, pressure gauge, etc.).

• Couple the boiler to the flue.

• Connect to the electrical system of

the boiler: the ambient thermostat, the heating pump, and the heating water pressure switch.

• Connect to the electrical mains.

3.2.4 Ventilation of boiler rooms

ALTAIR boilers have open combu-

stion chambers and are designed for being connected to a smoke flue. The combustion-supporting air is drawn

directly from the room in

which the boiler is installed.

It is obligatory that the boiler be installed in an adequate room in terms of the current standard,

which is taken as an integral part of this booklet.

3.2.5 Smoke chimney system

The ALTAIR boilers have a smoke flue coupling that is suitable for connecting to a smoke chimney with a diameter as specified in the technical data tables. Current standards must be complied with when discharging smoke into the atmosphere, and

these standards are taken as being an integral part of this booklet.

The smoke ducts from the boiler are to be connected to a smoke flue formed as indicated in current standards,

which are taken as being an

integral part of this booklet.

The following obligatory requirements for smoke flues and smoke ducts must be kept in mind:

• They are to be of a diameter not less than that on the boiler outlet.

• They are to be made of impermeable material that can withstand the smoke temperature and related acid condensate.

• They are to have low thermal conductivity, sufficient mechanical strength, be properly sealed, and of a calculated height and cross-section.

• The vertical inclination (smoke flue pipe) and section are to be constant, without any bottlenecks.

• Where horizontal flues sections have to be used, these must be at an incline of at least 5%.

• The end of the flue pipe is to be such that it can ensure efficient, constant evacuation of smoke under any weather conditions.

• The end section of the flue pipe is to be at least 0,5 m above any adjacent structure within a 5 m radius.

3. INSTRUCTIONS FOR THE INSTALLER

fig. 5

Page 13

3.2.6 On-site measurement of combustion efficiency

To determine combustion efficiency the following measurements must be taken:

• The temperature of the combustion-supporting air.

• The temperature of the smoke and the percentage of CO

2 in samples

drawn from the hole provided for this purpose in the smoke duct.

Take the specific measurements with the boiler running at normal load.

3.2.7 Connecting to the gas mains

The gas supply pipe must have a cross-section that is equal to or greater than that on the burner.

Installation standards must be complied with and are taken as being an integral part of this booklet.

Remember that before putting an internal gas distribution system into service, before it is connected to the meter, it must be checked for leaks.

If any part of the system is inaccessible the tightness test must be carried out before the pipes are covered up.

The tightness test must not be carried out using combustible gas. Use air or nitrogen for this purpose. Once there is gas in the pipes, checking for leaks using a naked flame is forbidden.

Use the products made for this purpose that are available on the market.

3.2.8 Connecting to the electrical mains

ALTAIR boilers have a terminal board for connection to a three-pole power supply cable, and a suitable cable clamp to prevent it from being torn out.

This boiler must be connected to a 230V-50Hz electrical power supply.

When forming the connection respect the phase/neutral polarity.

During installation relevant standards must be complied with and are taken as being an integral part of this booklet.

A two-pole switch must be fitted upstream of the boiler to allow all maintenance work to be carried out in complete safety.

The power supply to the boiler must be fitted with a differential magneticthermal trip-switch of a suitable tripping power.

The electrical power supply must be safely earthed.

This basic safety requirement must be checked. In case of doubt, call in professionally qualified personnel to check the electrical system carefully.

The producer accepts no responsibility whatsoever for any damage caused due to failure to earth the system. Gas, water or heating system pipes are not suitable for earthing the system.

3.2.9 Plumbing connections

Before installation, the boiler should be cleaned in order to remove, as far as possible, the impurities that may come from the components as far as possible, as these could damage the circulation pump or the heat exchanger.

The heating delivery and return pipes must be connected to the respective couplings on the boiler.

When sizing the piping for the heating system, bear in mind the load losses caused by radiators, thermostatic valves, radiator gate valves, and the configuration of the system itself.

3.2.10 Installation of original kits

The producer provides original

kits for installing clock programmers, cards for managing a remote water storage cylinder, and for installing a heat-regulating unit. These original kits are to be installed in compliance with the instructions supplied with them.

3.3 Filling the system

Once all the connections in the system have been completed, the heating circuit can be filled. This operation must be carried out carefully, and in the following steps:

• Open the bleeding valves on the radiators and make sure that the vent valve installed in the boiler room is working.

• Gradually open the relevant stopcock to fill the system and make sure that all automatic air vents installed in the system are working properly.

• Close the vent valve as soon as water comes out of it.

• Use the pressure gauge installed in the boiler room to check when the pressure reaches 0.8 / 1 bar.

• Shut the filling stopcock and bleed any air out again using the bleeding valves on the radiators.

• Having started the boiler and brought the system up to its working temperature, stop the pump and repeat the air bleeding operations.

• Allow the system to cool and return the water pressure to 0.8/1 bar.

WARNING

It is essential to treat the water of domestic heating systems using specific products that are compatible with multimetal systems. This must be made to optimise performance and safety, to preserve these conditions over time, to ensure longlasting regular operation of auxiliary equipment as well, and to minimise energy consumption, thereby integrating current laws and standard.

Note: The boiler is equipped with a drain cock at the front of the unit that can be used to empty the system.

Page 14

3.4 Starting the Boiler

3.4.1 Preliminary Checks

Before starting the boiler it is advisable to check that:

• The smoke flue has been installed in compliance with instructions.

When the boiler is running no products generated by combustion are to leak from any of the gaskets.

• The boiler power supply is 230 V – 50 Hz.

• The system is properly filled with water (pressure on

the water gauge 0.8 / 1 bar).

• All stopcocks in the system’s piping are open.

• The fuel supply stopcock is open.

• There are no gas leaks.

• The external main switch is on.

• The boiler’s safety valve is not blocked.

• There are no water leaks.

To speed up and facilitate igniting the boiler for the first time, bleed the air out of the gas piping using the gas pressure valve socket. Close the pressure socket carefully after bleeding the system.

3.4.2 Starting Up and Switching Off

For starting up and switching off the boiler, follow the

“User’s Instructions”.

3.5 Wiring Diagrams

: Flame control

EA: Ignition electrode ER: Flame detection electrode F1: Protection fuse F4A 250V IG: Main switch [marked “on/off” on the printed circuit] L1: Smoke thermostat / gas pressure gauge indication L3: Heating circulation unit indication L4: Burner ON indication L5: Safety thermostat indication L6: Burner cut-out indication (only E models). . Lon: Power ON indication Mn: Minimum thermostat (optional) [marked “Tm” on

the printed circuit]

MT: Motor timer (optional) [marked TIMER on the prin-

ted circuit]

PA: Water pressure switch (optional) [marked with the

pressure switch symbol on the printed circuit]

PC: Heating circulation unit Pgas: Gas pressure switch PZ: Ignition piezoelectric unit P1: Burner reset button R: Heating thermostat [marked “Tr ” on the printed cir-

cuit]

TA: Ambient thermostat TS: Safety thermostat TF: Smoke thermostat TM: Contact timer (optional) [marked TIMER on the

printed circuit]

VG,VG1,VG2: Gas Valve

a = Blue br = Brown g = Grey p = Pink v = Violet bl = Dark Blue bk = Black gn = Green r = Red y = Yellow w = White ygn = Yellow/Green o = Orange

Page 15

3.5.1 General layout

fig. 6

fig. 7

ALTAIR 18 - 48 RTN E

ALTAIR 18 - 48 RTN

Page 16

fig. 8

fig. 9

ALTAIR 60 RTN E

ALTAIR 70 - 100 RTN E

Page 17

fig. 6a

fig. 7a

ALTAIR 18 - 48 RTN E

ALTAIR 18 - 48 RTN

3.5.2 Topographical Diagrams

Page 18

fig. 8a

fig. 9a

ALTAIR 70 - 100 RTN E

ALTAIR 60 RTN E

Page 19

3.6 Gas conversions

Changing a boiler over from natural gas to LPG and vice versa is only to be carried out by qualified personnel.

To check the setting values for the nozzles and gas supply pressure, use a pressure gauge connected to the pressure sockets on the valves.

3.6.1 Conversion from natural gas to LPG

Proceed as follows:

• Remove the natural gas nozzle from the pilot burner after having unscrewed the nut that holds the olive and vent the gas supply pipe to the pilot burner.

• Position the LPG nozzle checking that it is as indicated in the technical data table, and after repositioning the gas supply pipe tighten the nut that secures the olive.

• Remove the natural gas nozzle on the main burner and fit the LPG nozzle, checking that this is as indicated in the technical data table.

• Unscrew the pressure regulating cap on the gas valve and tighten the

pressure regulating screw all the way.

• Screw the pressure regulating cap back on and seal it (using paint or a self-adhesive label, for example).

NOTE: for models RTN E 60 to RTN E 100 the regulating operations must be carried out on both gas valves.

• Check the gas circuit for leaks, especially the points that were disconnected.

• Affix the self-adhesive label provided that indicates the type of gas and pressure for which the equipment is set.

3.6.2 Conversion from LPG to natural gas

Proceed as follows:

• Remove the LPG nozzle from the pilot burner after having unscrewed the nut that holds the olive and vent the gas supply pipe to the pilot burner.

• Position the natural gas nozzle checking that it is as indicated in the technical data table, and after repositioning the gas supply pipe tighten

the nut that secures the olive.

• Remove the LPG nozzle on the main burner and fit the natural gas nozzle, checking that this is as indicated in the technical data table.

• Unscrew the pressure regulating cap on the gas valve and unscrew the pressure regulating screws so that the pressure at the outlet is as specified in the technical data table.

• Screw the pressure regulating cap back on and seal it (using paint or a self-adhesive label, for example).

NOTE: for models RTN E 60 to RTN E 100 the regulating operations must be carried out on both gas valves, taking care to balance them correctly.

• Check the gas circuit for leaks, especially the points that were disconnected.

• Affix the self-adhesive label provided that indicates the type of gas and pressure for which the equipment is set.

4. MAINTENANCE

In order to ensure that the equipment is efficient and that it functions correctly, maintenance must be carried out annually, based on the programme laid out below:

It is obligatory for all maintenance (and repair) operations to be carried out by qualified personnel. Before starting any maintenance work that involves replacing components and/or cleaning the inside of the boiler, disconnect the equipment from the electrical power supply.

Maintenance programme

Routine maintenance must include the following checks:

- Check of the general integrity of the boiler.

- Checking the gas supply to the boiler for leaks.

- Checking ignition of the boiler.

- Checking the boiler’s combustion parameters by analysing the smoke (this check is done every two years if the boiler is installed on its own. Where the boiler is installed in a cascading system, this check is run annually).

- Checking the integrity, good state

of preservation, and tightness test on the smoke flue.

- Checking the integrity of safety devices on the boiler in general.

- Checking for water leaks and rusting on the boiler’s couplings.

- Checking the efficiency of the system’s safety valve.

The following cleaning is to be done (with the boiler cold):

- General internal cleaning of the boiler.

- Cleaning of the burner and resetting of the same if necessary, as per instructions provided by the manufacturer.

- Cleaning of the ventilation grille for the boiler room.

- Cleaning of the smoke side of the heat exchanger. This can be done using swabs and vacuum cleaners to remove soot deposits on the sides and fins used for exchanging heat. Alternatively specific chemical products can be used in compliance with the instructions for use of the same.

Do not use inflammable products such as petrol, solvents or any other such material to clean the heat exchanger.

When working on the boiler for the first time, check:

- The declaration of conformity for the plant.

- The plant handbook.

Also check:

- The suitability of the boiler room.

- The ventilation openings in the room.

- The smoke evacuation flues, and the diameters and lengths of these.

- That the boiler has been correctly installed as per instructions contained in this booklet.

If the equipment is not able to work correctly, or where it poses any danger to people, animals or property, inform the person responsible for the plant and draw up a statement in this regard.

Page 20

Fondital S.p.A.

25078 VESTONE (Brescia) Italy Via Mocenigo, 123 Tel. (+39) 0365 596.211 Fax (+39) 0365 820.200

e mail: [email protected]

www.novaflorida.it

BRAND NAME

Cod.0LIBISEN10

Uff. Pubblicità Fondital IST 04 C 126 - 01 Dicembre 2004 (12/2004)

The producer reserves the right to make minor modifications to the products

as required, without affecting the basic features.