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TECHNICAL MANUAL HEVO 14-18-21
ENGLISH

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Summarization of Contents

Presentation
Manual Overview
Overview of the manual's purpose and intended audience.
Installation
Outdoor Air Intake and Exhaust
Requirements for air inflow and ventilation for boiler operation.
Chimney and Fumes Pipe
Guidelines for flue discharge and chimney system installation.
Hydraulic Installation
Details on hydraulic system setup, models, and components.
Hydraulic Connection Diagram
Diagram and legend for HEVO hydraulic connections.
Plant Filling Procedure
Procedure for filling the heating system with water.
System Configuration
Default Configuration (P26=0)
Factory settings for 'heating only' version coupled with gas boiler.
Boiler Operation Logic
Logic for plant heating and sanitary hot water production.
Boiler Sanitary Water Configuration (P26=2)
Settings for heating sanitary hot water loading tank.
Central Heating Logic
Pump operation based on boiler and sanitary water temperatures.
Puffer Technical Storage Configuration (P26=4)
Instructions for heating an accumulation puffer tank.
Electronic Unit
Electrical Diagram
Schematic of the electronic connections and components.
Environment Thermostat
Configuration and logic for connecting a room thermostat.
Loading System
Manual Loading
Procedure for manually loading pellets into the boiler.
Automatic Load
Procedure for automatic pellet loading and air intake calibration.
Thermostat Settings
Shutdown Thermostat Settings
Temperature settings for system shutdown.
Timer Settings
Parameters for ignition and cleaning timers.
Settings Menu
Configuration parameters for various system functions.
Errors and Solutions
Warning Er01
Overheating detected; safety thermostat intervention.
Warning Er02
Low depression in machine body; fumes discharge issue.
Warning Er03
Boiler shut off due to low fumes temperature.
Warning Er04
Boiler water temperature exceeded Th25 limit.
Warning Er05
Fumes temperature exceeded Th08 limit.
Warning Er07
Control unit not detecting fume extractor encoder signal.
Warning Er08
Fumes extractor speed adjustment failed.
Warning Er09
Low boiler water pressure detected.
Warning Er10
Boiler water pressure exceeded SPO2 limit.
Warning Er11
Electronic control unit data storage issue.
Warning Er12
Failed ignition within the maximum allowed time.
Warning Er15
Boiler power interruption (black-out) for over 50 minutes.
Other Signals
Explanation of status messages like Sond, Service, Link Error.

Table of Contents