HVAC / Water Heaters
Installation and Maintenance Manual for Ferroli ECOUNIT H 1B-2B Tank
Comprehensive installation and maintenance guide for the Ferroli ECOUNIT H 1B-2B storage tank. Includes connection diagrams, technical specifications, safety requirements, and warranty conditions.
Quick answers from the manual
Quick answer
- The Ferroli ECOUNIT H 1B-2B is a storage tank requiring professional installation. Key maintenance includes checking the magnesium anode every 6-12 months and ensuring water quality meets specific Langelier Index and hardness standards. p. 3, 6, 7
Key actions
- Inspect and replace the magnesium anode every 6-12 months. p. 6, 7
- Install an expansion vessel within 1 meter of the tank. p. 6, 7
First start
- Flush hydraulic lines and ensure the tank is completely filled before activating any heat source. p. 6, 7
Problems and fixes
Leakage from flange
Check the assembly of the expansion vessels.
p. 6, 7Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Max Sanitary Pressure | 6 bar (SMALVER-INOX) / 8-10 bar (SMALGLASS) | Maximum operating pressure for the sanitary circuit. | p. 10 |
| Max Exchanger Pressure | 10 bar | Maximum operating pressure for the heat exchanger. | p. 10 |
Where to find it in the PDF
- Installation Instructions p. 6, 7
- Connection Diagrams p. 11, 12, 13
Table of contents
Manual images
Click an image to enlargeImportant Information
This manual is an integral part of the Ferroli ECOUNIT H 1B-2B tank and must be kept in a safe place. Installation, commissioning, maintenance, and deactivation must be performed by a qualified technician. Failure to comply with these instructions will invalidate all legal and contractual warranty rights.
Installation Requirements
The installation must adhere to the following requirements to ensure safety and warranty validity:
- Qualified Installer: Installation must be executed by a qualified professional.
- Pressure Control: Install a pressure reducer on the inlet if necessary.
- Safety Valve: A safety valve must be installed according to the technical data on the boiler label.
- Expansion Vessel: Install an expansion vessel within a maximum distance of one meter from the tank, sized appropriately for the boiler dimensions.
- System Cleaning: Flush all hydraulic lines before commissioning to prevent corrosion from impurities or processing chips.
- Filtration: Install filters upstream of the tank to prevent heavy particles or residues from entering.
- Drainage: Install the boiler in a technical room with suitable drainage to handle potential leaks.
- Electrical/Grounding: Ensure equipotential ground connection for both the tank and connected pipes.
Commissioning and Maintenance
Before starting, verify the hydraulic seal of all connections and hatches. Do not switch on any heat source until the tank is completely filled.
Maintenance Schedule
- Anode Inspection: Check the magnesium anode every 12 months. In areas with particularly aggressive water, inspect every 6 months. Replace the anode if the diameter is less than 22 mm in any section; clean it if covered with limestone.
- Water Quality: Maintain the Langelier Index between 0 and +0.4. Water hardness should be between 10°F and 20°F. Maximum chloride concentration is 70 mg/l, and minimum conductivity is 150 microS/cm.
- Freezing Protection: If there is a risk of freezing, heat or completely empty the tank. Empty the tank if it will not be used for a long period to prevent internal corrosion and bacterial proliferation.
Technical Specifications
The tank must operate at temperatures below 95°C (70°/80°C for SMALVER/SMALTECH models). Maximum working pressure for the sanitary circuit is 6 bar (SMALVER-INOX) or 8-10 bar (SMALGLASS). The heat exchanger maximum working pressure is 10 bar.
Practical help
Common problems
Corrosion inside the tank
Check the magnesium anode every 6-12 months. Replace if diameter is less than 22mm or clean if covered in limestone.
Leaks from connections or hatches
Verify hydraulic seal. Apply 20 Nm torque for handhole hatches and 40 Nm for manhole screws.
Risk of freezing
Heat the tank or empty it completely. Also empty the tank if it will be unused for a long period.
Before use
- Ensure installation is performed by a qualified technician.
- Install a pressure reducer if necessary.
- Install a safety valve according to technical data.
- Install an expansion vessel within 1 meter of the tank.
- Flush hydraulic lines to remove impurities.
- Install filters upstream of the tank.
- Ensure the tank is completely filled before switching on any heat source.
Specs in practice
- Langelier Index
- Must be between 0 and +0.4 for optimal water quality and to prevent corrosion.
- Anode Diameter
- Must be at least 22mm; if smaller, it must be replaced.
- Sanitary Pressure
- Max 6 bar (SMALVER-INOX) or 8-10 bar (SMALGLASS).
Images and diagrams
- The manual provides connection examples for standard boilers, solar panels, and thermo fireplaces.
- Key components in diagrams include: a) Aqueduct, b) Check valve, c) Pressure reducer, d) Expansion tank, e) Safety valve, f) Drain cock, g) Boiler.
Model compatibility
- SMALVER/SMALTECH models have a temperature limit of 70°/80°C.
- Expansion vessel sizing must be verified by an expert.
Manual page author
David Miller
Documentation analyst
Organizes user manual content into clear summaries, with attention to model details, product context, and everyday usability.