eNeRGy-IOM-2020.11-EN
• 11 •
Replacing components, equipment and piping:
• Replacement of components shall be carried out using spare parts, or using parts approved by LENNOX.
• Only the refrigerant shown on the manufacturer’s nameplate shall be used, to the exclusion of all other products
(refrigerant blends, hydrocarbons, etc.).
Transport – Handling- Access:
• Never lift the unit without forklift protections
• Remove the forklift protection before installation
• If access to the installation is difficult, provide guard rail. This recommendation is valid for installations in general and for return
and curbs. It’s also valid to reach other parts of the unit: filters, refrigerant circuit, etc…
• It’s advised to fix curbs and roofcurbs to the unit
• Installation of the unit and accessibility must be compliant with the local regulations. Ensure that all access equipment allow
maintenance operation in safety (electrical cabinet, main switch, panels, filter, refrigerant circuit…)
• It is strictly forbidden to walk or store equipment or material on top of the rooftop unit
• Equipment designed to withstand transport and handling according to the established protocol (for the handling protocol, please
refer to the installation instructions for the relevant product range).
• All unloading operations must be carried out with suitable equipment (crane, forklift truck, etc.).
• When using a forklift truck, you must respect the positions and the direction of handling indicated on the products.
• The equipment must be handled with care to avoid damage to the bodywork, pipework, condenser, etc.
Rooftop installation in heavy wind locations
• The roofcurbs (vertical & horizontal) and rooftops installations are designed to withstand winds up to 80 km/h. Above this
limit, it’s recommended to take appropriate actions to secure the installation.
• Ensure the fresh air inlet does not face prevailing wind direction.
Filters:
• Do the filters fire classification’s choice according to local regulations.
Fan
compartment:
• Stop the power before accessing the fan compartment.
Warning: the unit is working under pressure. Never open the panels when the unit is working. Even after shutting down the unit,
wait for 2 minutes until the fans are completely stopped before opening any panel.
Gas:
• Any work on gas module must be carried out by qualified personnel
• A unit with gas module must be installed in accordance with local safety codes and regulations and can only be used in
planed installation conditions for outdoor.
• Before commissioning this type of unit, it’s mandatory to ensure that the gas distribution system is compatible with the
adjustment and settings of the unit.
Warning:
• The units are not designed to resist to a fire. The installation site must comply with the standards relating to fire
protection.
• In case of installation of the units in an area recognized as being potentially at risk for natural phenomena (tornado,
earthquake, tidal wave, lightning...), please follow the standards and regulations, and provide the necessary devices to
prevent from these risks.
• In the event of fire, refrigerating circuits are liable to rise in pressure above the maximum working pressure and release
refrigerant and oil. Please take this into account in your risk analyses.
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