BaltGaz NEVALUX 7224 User Manual

User’s manual
TABLE OF CONTENTS
1. SAFETY MEASURES...................................................................................................................................................4
2. Technical description
........................................................................................................................................................................................... 5
2.1.Boiler’s purpose........................................................................................................................................................... 5
2.2. Technical characteristics............................................................................................................................................. 5
2.3. Overall and connection
dimensions………………………..................................................................................................................................... 6
3. USER’S MANUAL....................................................................................................................................................... 7
3.1. Control Panel.............................................................................................................................................................. 7
3.2. Boiler’s operating
modes………………......................................................................................................................................................... 8
3.2.1. Standby
mode...................................................................................................................................................................................8
3.2.2. DHW mode.............................................................................................................................................................. 8
3.2.3. Combined
mode………….................................................................................................................................................................. 9
3.2.4. Heating
mode…….......................................................................................................................................................................... 9
3.3. Additional
functions…….................................................................................................................................................................... 9
3.3.1. Antifreeze
functions………................................................................................................................................................................ 9
3.3.2. Anti-blocking
functions…………............................................................................................................................................................ 9
3.3.3. Boiler’s operation in heating mode with an external (outdoor) temperature
sensor................................................................................................................................................................................ 9
3.3.4. Boiler’s operation at low /high source
voltage............................................................................................................................................................................. 10
4. BOILER SERVICE…................................................................................................................................................. 10
4.1.Examination............................................................................................................................................................... 10
4.2. Boiler Treatment…….............................................................................................................................................. 10
4.3. Operations effectuated at technical
service.............................................................................................................................................................................. 11
5. STORAGE
PRECAUTIONS.............................................................................................................................................................. 11
6. GENERAL
REQUIREMENTS.......................................................................................................................................................... 11
7. OPERATIONS BEFORE
INSTALLATION............................................................................................................................................................ 12
7.1. DHW system............................................................................................................................................................. 12
7.2. Heating system......................................................................................................................................................... 12
7.2.1. New heating
system……...................................................................................................................................................................... 12
7.2.2. Existing heating
system………………...................................................................................................................................................... 12
7.3. Selection of an additional expansion
tank.................................................................................................................................................................................. 12
8. BOILER INSTALLATION......................................................................................................................................... 13
8.1. Mounting the boiler to the
wall……………………….............................................................................................................................................. 13
8.2. Connecting the boiler to the CH and the DHW
system.............................................................................................................................................................................. 13
8.3. Connecting the boiler to the gas
system.............................................................................................................................................................................. 13
8.4. Connecting the boiler to the balloon with liquefied
gas.................................................................................................................................................................................... 14
8.5. Connecting the boiler to the power
line................................................................................................................................................................................... 14
9. SMOKE EXHAUSTER
INSTALLATION……………........................................................................................................................................ 15

BaltGaz NEVALUX 7224 Specifications

General

Mounting type	Wall-mounted
Fuel type	Natural gas
Maximum heat output	24 kW
Heating Capacity	24 kW
Hot water production at ΔT 25°C	13.7 L/min
Hot water production at ΔT 50°C	6.8 L/min
Efficiency	92.4 %
Combustion chamber type	Closed
Ignition	Electronic
Maximum water pressure	3 bar
Minimum water pressure	0.3 bar
Chimney diameter	60/100 mm
Weight	29 kg
Operating Pressure	0.3-3 bar
Water Temperature Range	30-85°C
Type	Gas
Nominal gas pressure	13-20 mbar
Connection diameter	1/2, 3/4 inch
Dimensions (HxWxD)	700x400x299 mm

Summary

SAFETY MEASURES

General Safety Precautions

Prohibits unsafe actions and practices related to boiler operation.

TECHNICAL DESCRIPTION AND SPECIFICATIONS

Boiler Details and Characteristics

Covers boiler purpose, technical specs, dimensions, and connections.

USER OPERATION AND MODES

Control Panel and Operating Modes

Explains control panel, buttons, and operating modes (Standby, DHW, Combined, Heating).

Additional Functions and Options

Describes features like antifreeze, anti-blocking, and external sensors.

BOILER SERVICE AND MAINTENANCE

Owner's Maintenance Tasks

Daily checks and periodic cleaning for the owner.

Technical Service Procedures

Procedures performed by qualified service personnel.

INSTALLATION AND INITIAL START-UP

Boiler Installation Procedures

Steps for mounting and connecting boiler to water, gas, and power.

Pre-Installation Requirements

Checks for DHW, heating systems, and expansion tanks.

Smoke Exhauster Installation

Instructions for installing the flue system.

INITIAL START-UP AND OPERATION

Initial Start-up and Checks

Filling the heating circuit, pre-launch checks, and basic operation.

Boiler Power Regulation and Gas Conversion

Adjusting power, regulating pressure, and changing gas type.

Boiler Operation Logic and Service Functions

Explains operating logic and parameter programming.

TROUBLESHOOTING AND FAULT FINDING

Error Code Troubleshooting

Diagnosing issues based on error codes.

Non-Coded Failures Resolution

Resolving common issues not indicated by error codes.

TECHNICAL SERVICE AND OPERATION CHECKS

Annual Technical Service

Routine maintenance tasks for service personnel.

Operation Checks

Verifying system integrity and component functionality.

DISASSEMBLY AND UTILIZATION

Main Unit Dismantling

Steps for disassembling major boiler components.

Boiler Utilization and Recycling

Safe disposal and recycling of the boiler.

DELIVERY SET AND WIRING DIAGRAM

Delivery Set Components

List of items included in the boiler package.

Wiring Diagram and Connections

Visual guide to electrical connections and component wiring.