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6

General Information

1.7 - THE FOLLOWING INSTRUCTION MUST

BE FOLLOWED

-

The boiler must only be used for its designated purpose,
as described in the Installation Instructions.

-

Each unit is fitted with a data plate. Consult the details on
this plate to verify whether the boiler is compliant with its
intended location, e.g.: gas type, power source and ven-
ting classification.

-

Only use the boiler with the accessories and spare parts
listed.

-

Other combinations, accessories and consumables must
only be used if they are specifically designed for the inten-
ded application and do not affect the system performance
and the safety requirements.

-

Maintenance and repairs must only performed by trained
professionals.

-

Installation of a condensing gas boiler must be reported to
the relevant gas utility company and have it approved.

-

You are only allowed to operate the condensing gas boiler
with the vent system that has been specifically designed
and approved for this type of boiler.

-

Please note that local permission for the vent system and
the condensate water connection to the public sewer sy-
stem may be required.

You must also respect:
-

The local building codes stipulating the installation rules.

-

The local building codes concerning the air intake and
outlet systems and the chimney connection.

-

The regulations for the power supply connection.

-

The technical rules laid down by the gas utility company
concerning the connection of the gas connection to the
local gas mains.

-

The instructions and standards concerning the safety equi-
pment for the water/space heating system.

-

The Installation Instructions for building heating systems.

-

The boiler must be located in an area where leakage of
the boiler or connections will not result in damage to the
area adjacent to the boiler or to lower floors of the structu-
re. When such locations cannot be avoided, it is recom-
mended that a suitable drain pan be installed under the
boiler.

-

The boiler must be installed in such way that the all com-
ponents are protected from water (dripping, spraying, rain
etc.) during boiler operation and service.

-

The boiler must not be installed on or against carpeting.

-

Do not restrict or seal any air intake or outlet openings.

-

If you find any defects, you must inform the owner of the
system of the defect and the associated hazard in writing.

DANGER.

Gas is flammable and may cause an explo-
sion.
Beware if you smell gas: there may be an explo-
sion hazard!

If the information in these instructions is not followed exactly,
a fire or explosion may result causing property damage,
personal injury or death.
-

Do not store or use gasoline or other flammable vapors
and liquids in the vicinity of this or any other appliance.

WARNING
WHAT TO DO IF YOU SMELL GAS

- Do NOT try to light any appliance.
- Do NOT touch any electrical switch.
- Do NOT use any phone in your building.
- Immediately call your gas supplier from a
neighbor’s phone. Follow the gas supplier’s in-
structions.
- If you cannot reach your gas supllier, call the
fire department.

WARNING
Should overheating occur or the gas supply
fail to shut off, do not turn off or disconnect
the electrical supply to the pump. Instead,
shut off the gas supply at a location external
to the boiler.

Unsuitable heating system water can cause the formation of
scale or sludge, which affects system efficiency. It can also
cause corrosion and reduce life of the heat
exchanger.

-

You must follow Latner guidelines for boiler water
quality.

-

Thoroughly flush the system prior to filling.

-

Follow the LATTNER cleaning instructions.

-

Never use water that has been treated by a reverse
osmosis, D.I., or distilled water to soften the water to fill
the heating system.

-

Do not use inhibitors or other additives unless appro-
ved by LATTNER for that purpose!

-

When frost protection of the heating system is desired,
only use LATTNER-approved antifreezes. The allowed
maximum concentration is 50%.

-

When using oxygen-permeable pipes, e. g. for under
floor heating systems, you must separate the system
from the boiler using plate heat exchangers.

-

Valve off boiler while flushing system, do not introduce
any system cleaner into the boiler loop. Flush system
thoroughly to remove all system cleaner before filling
boiler.

Approved antifreeze 

(max. concentration 50%)

:

Rhomar RhoGard Mutli-Metal (AL safe)

Noble Noburst AL

Approved system cleaner:

Noble Noburst Hydronic System Cleaner

Fernox F3 Cleaner

Rhomar Hydro-Solv 9100

The system cleaners from NoBurst, Rhomar, and
Fernox are not to be used in the boiler. The boiler
must be closed off (valved off) from the rest of the
system or not connected while the cleaners are
in the system. The system should then be drai-
ned and then thoroughly flushed with clean wa-
ter to remove all the system cleaner.

Approved inhibitors:

• 

Rhomar Pro-tek 922

• 

Noble Noburst AL inhibitor

Summary of Contents for Lattner ALKON 50

Page 1: ...LKON 50 INSTALLATIONAND SERVICINGMANUAL Notice This manual is avaible in the English and French language In the Commonwealth of Massachusetts this boiler must be installed by a licensed Plumber or Gas...

Page 2: ...ler connection 31 Connection of the additional safety device 31 3 22 Wiring diagrams 32 3 23 Ladder diagrams 34 3 24 Starting up 35 3 25 Filling the system 35 3 26 Initial lighting 36 Preliminary chec...

Page 3: ...resistance to lime scale it is recommended to adjust the domestic hot water temperature as near as possible to the one you really require We recommend you to check the state of cleanliness of the dome...

Page 4: ...een purged For a correct purging of the tank contact the liquid gas supplier or a competent person who has been legally authorized If the tank has not been correctly purged problems could occur during...

Page 5: ...e the main gas tap 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 DANGER Explosive and easily...

Page 6: ...ciated hazard in writing DANGER Gas is flammable and may cause an explo sion Beware if you smell gas there may be an explo sion hazard If the information in these instructions is not followed exactly...

Page 7: ...g only original spare parts Non observance of the above requirement may jeopardize the safety of the appliance To guarantee the efficiency and correct functioning of the appliance it is indispensable...

Page 8: ...1 G Gas Inlet Sc Outlet condensate drain siphon from aluminium body Scf Outlet condensate drain siphon from the flue pipe SV Safety valve outlet A Air intake S Flue Outlet TECHNICAL FEATURES AND DIME...

Page 9: ...LVE SPACER PIPE REPLACEABLE FOR MOUNTING OF OPTIONAL CIRCULATOR FLOW TEMPERATURE SENSOR RETURN TEMPERATURE SENSOR OVERHEAT THERMOSTAT IGNITION TRANSFORMER MIN WATER PRESSURE SWITCH IGNITION ELECTRODE...

Page 10: ...PERATURE SENSOR RETURN TEMPERATURE SENSOR OVERHEAT THERMOSTAT IGNITION TRANSFORMER MIN WATER PRESSURE SWITCH IGNITION ELECTRODE SAFETY VALVE ALUMINIUM HEAT EXCHANGER CONDENSER CONDENSATE DRAIN 1 25 mm...

Page 11: ...n siphon 5 Overheat thermostat 6 Heat exchanger 7 Burner 8 Air vent valve 9 Flue outlet Air intake 10 Fan 11 Premix 12 Room sealed chamber 13 Replaceable pipe for insertion optional pump only for ALKO...

Page 12: ...RS BURNER PRESSURES DIAPHRAGMS OUTPUTS GAS CONSUMPTIONS please refer to the paragraph BURNER ADJUSTMENT Btu hr kW Btu hr kW Btu hr kW Btu hr kW Btu hr kW Btu hr kW Btu hr kW F C lb hr kg hr gal min l...

Page 13: ...after this verification has been carried out WARNING In rooms where there is the presence of aggressive vapours or dust the appliance must operate independently from the air present in the boiler s l...

Page 14: ...has been reviewed for compliance with the applicable sections of the following North American Standards ANSI Z21 13 CSA 4 9 Gas fired low pressure steam and hot water boilers ASME SECTION IV ASME Boil...

Page 15: ...rder to be able to securely hold and support the boiler weight with its water content Take note of the necessary space around the boiler for installation of venting system pipework and servicing See d...

Page 16: ...d de tergents paints adhesives in proximity of the boiler The boiler must be installed in such a way that it is pro tected from water dripping spraying rain etc during operation and service circulator...

Page 17: ...scale Boiler system flushing Not Boiler heat exchanger When replacing an existing boiler the heating system should be flushed with the old boiler in place before the new boiler is added to the sy stem...

Page 18: ...strictions The flue outlet pipe has a connection for the discharge of condensate The boiler room has a suitable outlet for the discharge of condensate produce by the boiler The electrical system has b...

Page 19: ...boiler running Minimum 8 inches W C with gas flowing verify during boiler startup Ensure that the high gas pressure regulator is installed at least 6 to 10 feet upstream of the boiler Gas piping Use a...

Page 20: ...ream of the dirt filter scale cartridge or y strainer When determining the size of the CH circuit pipes it is essential to bear in mind the pressure losses induced by any of the system s components an...

Page 21: ...gal h l h T 27 F 15 C Max flow rate demanded in gal h l h T 36 F 20 C 154 000 45 13 199 000 58 32 683 2826 513 2120 683 3927 663 2946 If determined by the installer or technical engineers must be size...

Page 22: ...or damage 3 13 CONNECTING THE EXPANSION VESSEL IN A SINGLE BOILER SYSTEM CAUTION Damage to the installation due to faulty pressure relief valve An expansion tank must be part of the central heating sy...

Page 23: ...e resistant to con densate if the condensate outlet of the boiler is lower than the drain a condensate pump must be used The condensate produced by the boiler has a pH value between 3 and 4 Do not dra...

Page 24: ...the supply water will prevent the above stated problems and will maintain the correct operation and efficiency of the generator in time For this purpose it will be necessary to fix the following chemi...

Page 25: ...not store flammable materials and liquids in the immediate vicinity of the boiler All Air from inside the Building room air The closet shall be provided with two permanent openings communicating dire...

Page 26: ...can freeze causing ice formations Do not use chimney as a raceway if another boiler or fire place is vented into or through chimney EXHAUST INTAKE 12 305 mm minimum 12 305 mm minimum 12 305 mm minimum...

Page 27: ...the roof The combustion air is withdrawn directly from the room where the boiler is installed The flue system must be installed in accordance with the local and national Standards Use only original L...

Page 28: ...total allowed linear maximum length of the smoke evacuation and air intake pipes of 3 15 80 mm is 787 4 20 m including one wide radius curve and one evacuation terminal ATTENTION In the case in which...

Page 29: ...t let terminals which admit fresh air to the burner and discharge the products of combustion to the outside through concentric or twin ducts The minimum distance between the inlet air duct and the flu...

Page 30: ...unless it is explicitly foreseen Do not permit children or inexpert people to use the appliance Mains electrical supply connection 120 V 60 Hz Power supply cord The boiler is provided complete with a...

Page 31: ...the connection remove the existing jumper CDS 1 Prearrangement for the connection of the additional safety devices LIGHTBLUE LIGHTBLUE LIGHTBLUE For the connection of the E8 heating controller to rem...

Page 32: ...GE P BLUE BROWN YELL GREEN GREEN GREEN WHITE WHITE WHITE BROWN BLUE BROWN GREEN RED CH WHITE DHW IG VM L1 N 120 V 60 Hz SS MDV 00333986 BLUE N BROWN L E ACC TR ACC BLUE BROWN RED YEL GREEN VG YEL GREE...

Page 33: ...C WHITE BLUE BLUE CDS 1 YELL GREEN BROWN BLUE P BOILER SYSTEM P SYST Pump system Note Any accessories shown in the drawn are not available for this model of boiler Minimum water pressure switch Igniti...

Page 34: ...E CAUTION HIGH VOLTAGE SPARK LEAD SPARK ROD A8 1 IG A8 2 IG A8 2 A9 2 A9 6 A6 6 A6 5 A9 5 A9 1 A8 1 A3 5 SRR RIBBON CABLE A3 A3 6 A3 3 SR A3 4 A4 6 PF A4 5 A4 4 A4 5 TL A4 1 CDS 1 A2 3 DK A2 1 8 8 8 D...

Page 35: ...efully by obser ving the following steps boiler in Off position open the radiator bleeds and make ascertain the good operation of the automatic air vent fitted in the boiler open progressively the fil...

Page 36: ...36 Instructions for the installer...

Page 37: ...n filled with water DANGER Before commissioning the appliance fill the siphon and check the correct drainage of the condensate If the appliance is used with the condensate drain siphon empty there cou...

Page 38: ...the gas valve knob in OFF position After 1sec boiler switch off LIGHT BLUE Power on by switching ON OFF switch 3 27 TESTING THE IGNITION SAFETY SHUT OFF DEVICE Lock out indicator led illuminated faul...

Page 39: ...onds the boiler will operate in the CH mode at the maximum output led 1 illuminated Check that the C02 values are within the values indicated in the table Burner pressures If necessary correct the val...

Page 40: ...ANTICLOCKWISE direction in order to decrease it Type of Gas 7 1 74 11 2 74 7 1 74 11 2 74 0 038 1 07 0 015 0 42 0 038 1 07 0 015 0 42 0 173 4 91 0 067 1 90 0 156 4 42 0 060 1 71 A Natural E Propan HD...

Page 41: ...ing the desired value pressing the YELLOW key stores this new value in the memory Press the YELLOW key and the LIGHT BLUE key simultane ously to enter in the service mode SE and change the values of t...

Page 42: ...LUE VIOLET YELLOW BLUE LIGHT BLUE VIOLET YELLOW BLUE 3 30 VARIATION OF INPUT RANGE FOR HIGH ALTITUDE It is necessary adjust nominal heat input by reducing the fan speed Modify the parameter FH from th...

Page 43: ...nd return pipes as well as the cold water inlet valve Remove the appliance s front panel After having carried out all the necessary maintenance work always follow these steps Open the CH flow and retu...

Page 44: ...n be found on the back page of this manual Verify that the air ventilation system air intake and air intake pipes are unobstructed After 1 year maintenance Perform cleaning of the burners only by blow...

Page 45: ...ame must burn with a clear ORAN GE stable flame Check the flame through the inspection glass The flame pattern should be as shown in the figures below SATISFACTORY ORANGE FLAME FLAME YELLOW CO2 HIGH N...

Page 46: ...THE CONDENSATE DRAIN SIPHON In order to check and clean the siphon carry out the following steps unscrew the plastic nuts 1 and 2 and to remove the siphon Verify if there are any deposits flush them...

Page 47: ...3 Code Description Mains voltage 96 Vac Corrective action Check that the mains voltage is 96 Vac if the mains voltage is correct replace the control board Code Description Insufficient gas pressure Co...

Page 48: ...ion Flame signal detected before the ignition cycle Corrective action Disconnect the detection electrode s wire from the control board if the error code disappears replace the cable otherwise replace...

Page 49: ...49 Spare parts ALKON 50 13 36 37 41 39 38 3 9 33 23 31 43 20 10 32 12 1 18 2 14 16 2 25 4 22 26 4 4 4 27 28 17 8 21 6 29 7 35 6 39 11 24 42 5 15 44 44 34 40 45...

Page 50: ...50 Spare parts ALKON 70 13 36 37 41 39 38 3 9 33 23 31 43 20 10 32 12 1 18 2 14 16 2 25 4 22 4 27 28 17 8 21 6 6 30 39 11 24 42 5 15 4 26 4 35 44 44 34 45 40...

Page 51: ...at thermostat 203 F 95 C 22 95261988 3 15 80mm seal 2 pcs 23 95261999 Cover protection switch 24 95262087 3 15 80mm seal 25 95262128 Gas valve 26 95263579 Ignition transformer 27 95263551 Fan Alkon 70...

Page 52: ...press Also reserves the right to bring those changes that it will hold necessary to it own products or profits without jeopardizing its essential characteristi cs Lattner Boiler Mfg Co 1411 9th St S W...

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