GN4 N - Central heating boiler FERROLI - Free user manual and instructions

USER MANUAL GN4 N FERROLI

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015 Dear Customer, Thank you for having chosen the GN4 N, an advanced-concept Ferroli boiler featuring cutting-edge technology, high reliability and constructional quality. Carefully read this manual and keep it for future reference. The GN4 N is a high-efficiency heat generator for the production of hot water for heating purposes, suitable for operation with jet burners on gas or liquid fuel. The boiler body consists of cast-iron elements, the shape of which, together with the careful design of the fins, ensure high heat exchange efficiency in all operating conditions. Important warnings

• This manual provides important indications on the safety of operation, installation and maintenance, and is an integral and essential part of the product. Read this manual before installation and operation. It should be carefully kept for future reference.

• This appliance must only be used for the purposes it has been specifically designed for. This appliance is used to heat water to below-boiling temperatures at atmospheric pressure, and must be connected to a heating and/or domestic hot water distribution system, according to its characteristics, performance and heating capacity. All other uses are considered improper and thus dangerous.

• The appliance may not be opened nor its components tampered with, except for the parts included in the maintenance operations. The appliance may not be modified to alter its performance or use.

• The installation and maintenance operations must be performed according to the standards in force, the instructions of the manufacturer and must be carried out by professionally qualified personnel.

• Incorrect installation or poor maintenance may cause damage to people, animals or things. The manufacturer declines all liability for damage deriving from errors in the installation and operation of the appliance, and in any case from the failure to observe the instructions provided.

• Before performing any cleaning or maintenance opera- tions, disconnect the appliance from the mains power supply using the system switch and/or the correspon- ding on-off devices.

• In the event of faults and/or poor operation of the appliance, it should be deactivated. Do not attempt to repair the appliance. Contact professionally qualified personnel only.

• After having removed the packaging, check that the contents are intact. The parts of the packaging must not be left within the reach of children, as they are potential sources of danger. ENGLISH Electrical power supply Max operating pressure temperature PIN Serial number Max operating pressure Heat output Uselful heat output Bar code Water content 08/250 0085AS0589 230V~50Hz IP X 0DSer. n. 0352L50349

163 L Certification The CE Mark attests that Ferroli appliances conform to the requirements specified in the applicable European directives. In particular, this appliance conforms to the following EEC directives:

• Gas directive 90/396

• Efficiency directive 92/42

• Low voltage directive 73/23 (amended by 93/68)

Move the main switch 5 to position “I” to power the boiler and the burner. Refer to the burner manual for the operation of this device.

Set the desired system temperature using the control thermostat 4. If the thermoregulation control unit (optional) is con- nected, refer to the corresponding instruction manual.

For brief periods of inactivity, simply move switch 5 (Fig. 1) on the control panel to position “0”. For extended periods of inactivity, as well as operating switch 5, the fuel on-off valve must also be closed. For extended periods of inactivity during the winter period, to avoid damage from frost, add special antifreeze to the system or drain the system completely.

Two lockout conditions may occur that can be reset by the user: a - Burner lockout signalled by the corresponding light 6 (Fig. 1). Refer to the burner manual. b - Activation of the safety thermostat when the temperature in the boiler reaches the limit value above which a dangerous situation may arise. To reset operation, unscrew cap 3 and press the reset button. If the problem occurs again, contact qualified personnel or the service centre. In the event of faults and/or poor operation of the appliance, it should be deactivated. Do not attempt to repair the appliance. Contact professionally qualified and authorised personnel only.

General instructionsThis appliance must only be used for the purposes it has been specifically designed for. This appliance is used to heat water to below-boiling temperatures at atmospheric pressure, and must be connected to a heating and/or domestic hot water distribution system, according to its characteristics, performance and heating capacity. All other uses are considered improper. THE BOILER MUST ONLY BE INSTALLED BY QUALIFIED AND SPECIALIST PERSONNEL, IN COMPLETE COM-PLIANCE WITH ALL THE INSTRUCTIONS REPORTED IN THIS TECHNICAL MANUAL, THE LEGAL STANDARDS IN FORCE, THE PRESCRIPTIONS OF ANY NATIONAL AND LOCAL STANDARDS, AND ACCORDING TO THE RULES OF GOOD PRACTICE. Incorrect installation may cause damage to people, animals and things. The manufacturer will not be held liable in such events. Place of installation The room in which the boiler is installed must have ventilation openings to the outside according to the standards in force. If the same room features a series of burners or exhaust devices that can operate at the same time, the ventilation openings must be large enough for the simultaneous operation of all the appliances. The place of installation must be free of flammable objects or materials, corrosive gas, dust or volatile substances that, sucked in by the burner’s fan, may block the internal tubing of the burner or the combustion head. The environment must be dry and not exposed to rain, snow or frost. Positioning the boiler The minimum spaces shown in the figure must be complied with. Specifically, make sure that after assembling the boiler with the burner on the front door, the latter can be opened without the burner hitting against the wall or any other boiler. Leave a free space of at least 100mm on the side that the door swings towards.

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

2.1 Water connections

Make the water connections to the appliance according to the indications shown both next to each fitting and in Figure 2 of this booklet. The connections must be made in such a way that the pipes are not under stress. The safety valve must be fitted in the central heating circuit, as close as possible to the boiler, without there being any obstructions or on-off devices between the boiler and the valve. The appliance is not supplied with an expansion vessel, and therefore such device must be connected by the installer. Please note that in this regard, the pressure in the system, when cold, must be between 0.5 and 1 bar.

2.2 Connecting the burner

Oil or gas jet burners for pressurised furnaces can be used if their operating characteristics are suitable for the dimensions of the boiler’s furnace and its over-pressure value. The burner must be chosen following the instructions provided by the manufacturer, according to the field of operation, fuel consumption and pressure, as well as the length of the combustion chamber. Fit the burner following the instructions provided by the manufacturer of the device.

2.3 Electrical connections

The boiler should be connected to a single-phase, 230 Volt-50 Hz electrical line, using a permanent connection, installing a double pole switch with contact openings of at least 3mm, and suitable fuses. Connect the burner and the room thermostat (if featured) as shown in the wiring diagram in Chap. 4. The electrical safety of the appliance is ensured only when the appliance is correctly connected to an effective earth system, as prescribed by the safety standards in force. Have professionally qualified personnel check the efficiency and the rating of the earth system. The manufacturer is not liable for any damage caused by the appliance not being cor- rectly earthed. In addition, make sure that the electrical system is adequately rated for the maximum power absorbed by the appliance, indicated on the rating plate, and in particular that the cross-section of the wires is suitable for the power absorbed by the appliance.

2.4 Flue connections

The boiler should be connected to a suitable flue, manufactured in compliance with the standards in force. The pipe between boiler and the flue must be made from material suitable for this purpose, that is, resistant to both high temperatures and corrosion. The joints should be carefully sealed and the entire length of the pipe between the boiler and the flue should be thermally insulated, to avoid the formation of condensate.

2.5 Assembling the boiler

The boiler may be supplied: 1. As a set of elements, in 4 separate boxes, containing the Casing, Control panel, Elements, and accessories for assembling the elements. Follow the instructions enclosed with the set of elements to assemble the boiler body. Follow the instructions below to assemble the casing and control panel.

2. With the body already assembled, in 3 separate boxes containing the Casing, Control panel and Boiler body.

Follow the instructions below to assemble the casing and the control panel. A If the boiler body is sup- plied already assembled and is delivered from the factory on a pallet, remove the bolts 1 that fasten it to the pallet and position it for final instal- lation. Then assemble the various panels. C Prepare the right and left sides, choosing the quantity of side panels according to the dimensions of the boiler (see table).

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

3. SERVICE AND MAINTENANCE

All the adjustment, commissioning and maintenance operations must be performed by Qualified Personnel, in compliance with the standards in force. FERROLI S.p.A. declines all liability for damage to persons and/or things deriving from the tampering with the appliance by unqualified or unauthorised persons. Before performing any cleaning or maintenance operations, disconnect the appliance from the mains power supply using the system switch and/or the special on-off devices.

Checks to be performed on first ignition, and after all maintenance operations that involve the disconnection of the appliance from the systems or intervention on the safety devices or parts of the boiler: Before first ignition Before igniting the boiler for the first time, check that: a the system is filled at the right pressure and any air has been correctly vented; b there are no water or fuel leaks; c the electrical power supply is correct; d all the flues have been installed correctly and not too near to or across any flammable parts; e there are no flammable substances near the appliance; f the burner is suitably sized for the output of boiler; g the water on-off valves are open. First ignition After having carried out the preliminary checks, the following ignition operations can be performed: 1 Open the fuel on-off valve. 2 Set the thermostat 4 (Fig. 1) to the desired value. 3 Close the switch upstream from the boiler and switch 5 (Fig. 1) on the control panel. At this stage, the burner will be ignited and the boiler will start operation. After first ignition After first ignition, check that: 1 The door of the burner and smokebox are well sealed. 2 The burner is working correctly. This check should be performed using the required instruments, following the manufac- turer’s instructions. 3 The thermostats are working correctly. 4 Water is circulating in the system. 5 The flue gas is completely expelled through the flue.

Adjusting the burner The efficiency and correct operation of the boiler depend above all on accuracy of the adjustments made to the burner. Carefully follow the instructions provided by the manufacturer. Two-stage burners must have the first stage adjusted to an output that is no lower than the minimum rated output of the boiler. The output of the second stage must not be greater than the maximum rated output of the boiler.

For brief periods of inactivity, simply use switch 5 (Fig. 1) on the control panel. For extended periods of inactivity, as well as operating switch 5, the fuel on-off valve must also be closed.

To ensure the maximum reliability of the heating system and minimum running costs, the boiler must be cleaned regularly, at least once a year. These maintenance operations must be performed by qualified and specialist personnel. Cleaning the boiler 1 Disconnect the power supply to the boiler 2 Remove the upper and lower front panel. 3 Open the door by unscrewing the knobs. 4 Clean the inside of the boiler and the entire flue gas discharge path, using a brush or compressed air. 5 Close the door again, and fasten it using the knob. To clean the burner, refer to the instructions provided by the manufacturer.7 English Italiano Français Español Nederlands Türkçe GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

4. TECHNICAL SPECIFICATIONS

Water pressure drop Modello Heat output

Operating pressure bar

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

• Directive Gaz 90/396

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015

GN4 N Cod. 3541A511 - Rev. 01 - 03/2015