stefani OSTRO Use, Maintenance And Installation Manual

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USE, MAINTENANCE AND

OSTRO / OSTRO-L / OSTRO-XL

CONDENSERS (H) AND LIQUID COOLERS (W)

WITH AXIAL FANS

CODE: DMOSTEN00001

DATE: 01/04/2025

REVISION: REV.00

Version in English language

Read carefully before use

INSTALLATION MANUAL

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Page 1 USE, MAINTENANCE AND INSTALLATION MANUAL OSTRO / OSTRO-L / OSTRO-XL CONDENSERS (H) AND LIQUID COOLERS (W) WITH AXIAL FANS CODE: DMOSTEN00001 DATE: 01/04/2025 REVISION: REV.00 Version in English language Read carefully before use...
Page 2 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Index 1 General information: purpose of the manual 1.1 How to consult the manual 1.1.1 Description of the symbols found in the manual 1.2 Professional figures involved 1.3 Use and storage of the manual 1.4 Manufacturer ID...
Page 3 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5 Installation 5.1 Unpacking 5.2 Environmental conditions and preparations for installation 5.2.1 Environmental conditions 5.2.2 Provisions for installation 5.2.3 Checks before installation 5.3 Positioning and anchoring 5.3.1 Distances from walls or other machines 5.3.2 Positioning, levelling and anchoring...
Page 4 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL CODE: DMOSTEN00001 DATE: 01/04/2025 © 2022 Stefani S.p.A. REVISION: REV.00 Reproduction, even partial, is prohibited unless authorised...
Page 5: How To Consult The Manual
Read this manual before using the equipment or servicing it in any way. STEFANI S.p.A. declines any responsibility relating to not recommended uses of the equipment. Observe the specifications in this manual. The manual constitutes an essential safety requirement and must accompany the equipment throughout its life cycle.
Page 6 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL WARNING Indicates a MEDIUM LEVEL hazard which, if not avoided, could result in serious injury or death. CAUTION Indicates a LOW LEVEL hazard which, if not avoided, could result in minor or moderate injury.
Page 7: Proprietary Information
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL In case of doubts about the correct interpretation of the information included in the documentation provided, contact the manufacturer for the necessary clarifications. All users and professionals concerned must carefully read the instructions contained in this manual and any attachments before carrying out any operation on the equipment.
Page 8 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 1.6 Declaration of Incorporation The declaration of incorporation can be downloaded from the portal via the link provided to the customer. To download the Declaration of Incorporation the transport document number must be known.
Page 9 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 1.7 CE marking data plate A. Manufacturer name and logo AI SENSI DELLA DIRETTIVA STEFANI S.P.A. VIA DEL LAVORO 9 MACCHINE 2006/42/CE, IL 36020 CASTEGNERO (VI) - ITALY B. CE Mark PRODOTTO COSTITUISCE UNA "QUASI-MACCHINA"...
Page 10: Product Description
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 1.7.2 Product description Description of an example product code in use since January 2021 OSTRO AC 04D Model Type of fluid Fan diameter Number of Coil size Fin spacing Air flow Motor drive Ø...
Page 11: Warranty
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 1.9 Glossary Term Description Equipment Term used to define the partly completed machinery covered by this manual. Manufacturer Natural or legal person who designed and built the equipment covered by this ma- nual.
Page 12: Equipment Overview
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Equipment overview The equipment described in this manual is a heat sink equipped with axial fans. It is used to perform liquid cooling (Dry cooler) or gas condensation (condenser/gas cooler) in refrigeration, HVAC or process systems.
Page 13 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 2.1 Parts making up the equipment The parts that make up the equipment vary according to customer requirements. Find the right solution for you by checking the CE marking plate. See par. 1.7.
Page 14: Operating Principle
The operating data, the types of fluid used, the technical and performance specifications are indicated in the technical data sheet of the Stefani selection software. For information on the equipment or to receive a copy of the technical data sheet, please contact STEFANI S.p.A. quoting the serial number shown on the CE marking data plate.
Page 15 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Safety 3.1 General warnings The equipment may only be used by authorised professionals for the sole purpose for which it was designed and built. DANGER Before putting the equipment into operation, read this manual thoroughly.
Page 16 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 3.2 Equipment safety devices CAUTION Replacing safety components is an operation that may affect the safety of the equipment. Safety components should be exclusively replaced by qualified personnel. The safety devices must be kept in working order. For any replacement of safety components, use original spare parts only.
Page 17: Safety Labels
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 3.3 Safety labels The following safety labels are provided on the machine. CAUTION The labels must be replaced if worn or illegible. CAUTION Moving parts. CAUTION Centre of gravity symbol for the safe handling of packaged equipment.
Page 18: Personal Protective Equipment
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 3.4 Personal protective equipment CAUTION Depending on the operations carried out on the equipment, it is mandatory to wear personal protective equipment (PPE) as indicated in the following table. Operation Wear during inspection operations.
Page 19: Transport And Handling
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Transport and handling The packaging type and method is chosen based on the means of transport used and the place of destination of the goods. The packages are always accompanied by a packing list.
Page 20 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Handling by lifting via top hooking Lifting method valid for all equipment from module 2.2 to 9.2. Secure the lifting equipment to the provided hooking points, following the methods shown below.
Page 21: Installation
The design of the system in which the equipment is integrated and its installation must be carried out in accordance with the EN 378 standard. The installation and initial start-up of the equipment should be carried out by professionals. Stefani will not supply any initial start-up service unless previously agreed.
Page 22: Checks Before Installation
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5.2.2 Provisions for installation Depending on the type of equipment to be installed, the following should be provided at the site of installation: • For liquid-type equipment: liquid recovery system, in case it is necessary to drain the liquid.
Page 23 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5.3.1 Distances from walls or other machines The clearance around the equipment must be sufficient to allow inspections, cleaning and any maintenance to be regularly performed. The diagrams shown in this paragraph should be used to check the correct distancing of the condensers (equipment) from any walls or the correct gap between condensers.
Page 24 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5.3.2 Positioning, levelling and anchoring Positioning The equipment must be installed to a minimum angle of approximately 5 cm (A) lengthways - whatever its length. Otherwise it is possible to use height-adjustable feet.
Page 25 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Anchoring Ø 20 mm 35 mm 195 mm Ø 20 mm 195 mm 35 mm Depending on requirements and the provisions that the customer intends to use, the fixing/support to the foundation or flooring can be achieved in different ways as specified below.
Page 26 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5.5 Connections 5.5.1 Electrical connection/wiring Depending on order requirements, the equipment can come with electrical systems. For electrical connection and/or wiring, please refer to the diagrams on the machine or request them from Stefani S.p.A.
Page 27 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Pipe connection with threaded sleeve Close to the connection points, an adhesive plate is applied to the manifold indicating the inlet (IN) or outlet (OUT). For connections to the manifold, use flexible joints similar to joint (B), with suitable characteristics.
Page 28: Checks Before Commissioning
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 5.6 Relocation Equipment relocation operations must be carried out exclusively by authorised specialised technicians. Safety recommendations for handling: To relocate the equipment, use its designated hooking points as indicated. For equipment relocation, use suitable, tested and certified lifting equipment.
Page 29: Equipment Safety
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 6.1 Starting and stopping the equipment This equipment should be started at the same time as the system for which it is intended. For its starting and stopping, please refer to the installation manual.
Page 30 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 6.3 Equipment draining procedure PPE to be worn WARNING Secure the equipment. See par. 6.2. This operation should be carried out by qualified personnel, according to the F-GAS standard. Carry out draining operations in consideration of the different equipment supply systems.
Page 31: Maintenance
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Maintenance 7.1 General warnings WARNING Authorised operators should only carry out operations on the equipment within their specific field of expertise and wear any necessary and suitable PPE (personal protective equipment).
Page 32: Table Of Contents
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 7.3 Routine maintenance Routine maintenance is the set of operations to be carried out according to a given schedule. Their intended purpose is to keep the equipment in good working order.
Page 33: Subsequently Every
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 7.3.2 General checks Type of Person in Frequency Materials and equipment action charge • One week after start-up. • Subsequently every 4 months. PPE to be worn • Check for any dirt on the cooling coils.
Page 34: Every 3 Months
Stefani SpA recommends washing with plenty of water at room temperature. If detergents must be used, Stefani SpA recommends using mild agents that do not alter the pH of the materials, followed by plenty of rinsing with water to wash away any deposits and residues.
Page 35 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Perform general cleaning of the equipment and surrounding area. During cleaning, check the condition and integrity of the various parts of the equipment. In case of faults or damage, contact the maintenance technician for any service/replacement that may be needed.
Page 36: When Necessary
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL 7.3.6 Check for gas leaks Type of Person in Frequency Materials and equipment action charge According to FGAS directive PPE to be worn Check the tightness of the pipes. DANGER Certain liquids or gases used in the equipment can be highly polluting and/or harmful to human health.
Page 37 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL External rotor axial fan. Radial fixing with bolts for a grille with raised nozzle. 1. Unscrew the screws (A). 2. Lift and remove the guard (B) with the motor. 3. Replace the motor.
Page 38 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Fans with Axitop silencer device. 1. Remove the technopolymer diffuser (A). 2. Remove the bolts (B) that secure the support spokes radially to the conveyor (C). 3. Replace the motor.
Page 39: Dismantling And Disposal
Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL Dismantling and disposal Dispose of the equipment or any of its parts by separating the scrapped materials bearing in mind their different nature (e.g.: metal, plastic parts, rubber, oils, etc.). The equipment is built with modular recyclable parts. Disposal must take place in compliance with the laws and regulations applicable in the country where the equipment is installed.
Page 40: Spare Parts
• The Serial Number • The part to be supplied and the relevant quantity To order electrical system parts, please refer to the components in the wiring diagram. STEFANI S.p.A. will submit an offer for the requested spare parts. QUALITY DEPT. STEFANI S.p.A.
Page 41 Use, maintenance & installation manual OSTRO / OSTRO-L / OSTRO-XL CODE: DMOSTEN00001 DATE: 01/04/2025 © 2022 Stefani S.p.A. REVISION: REV.00 Reproduction, even partial, is prohibited unless authorised...
Page 42 CONDENSERS (H) AND LIQUID COOLERS (W) WITH AXIAL FANS STEFANI S.p.A. Via del Lavoro 9 36020 - Castegnero (VI) - Italia Tel. +39 0444 639999 E-mail: info@stefani-online.it Web: www.stefaniexchangers.com STEFANI S.p.A. reserves the right to make technical changes to this manual without notice.

This manual is also suitable for:

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