Rack accessory Rittal 3355.720 — black plastic condensate evaporator for roof-mounted cooling units

Rittal 3355.720 is a black plastic condensate evaporator designed for use with roof-mounted cooling units, specifically compatible with Blue e+ series roof-mounted coolers. The accessory collects condensate generated by the cooling process and evaporates it into the ambient air through the cooling unit's exhaust, avoiding visible external attachments by mounting tool-free on the underside of the roof-mounted unit. The lightweight design (approximately 400 g) and plastic construction make it suitable for industrial enclosures and server racks where controlled removal of condensate is required to support thermal management and prevent water accumulation.

Advantages

The condensate evaporator allows safe handling of condensed water without external drain lines, evaporating collected moisture into the exhaust airflow of the roof-mounted cooling unit. Tool-free mounting simplifies installation and reduces service time, while the black plastic housing is lightweight and resistant to corrosion. Integration with the cooling unit maintains a discreet appearance because the evaporator is mounted beneath the roof-mounted cooler and is not visible from the outside.

Suitable for (tasks / use cases)

• Evaporation of condensate in server racks and IT enclosures fitted with roof-mounted Blue e+ cooling units
• Industrial electrical enclosures where external drainage is impractical or undesired
• Environments requiring unobtrusive condensate handling to avoid external piping or visible components
• Retrofit installations on compatible roof-mounted coolers to improve condensate management

When it may not be suitable

This condensate evaporator is intended specifically for use with compatible roof-mounted cooling units (Blue e+). It may not be appropriate where a dedicated external drain or condensate collection system is required by site regulations or where the cooling unit does not produce sufficient exhaust airflow to ensure reliable evaporation. Installations that require compliance with special liquid handling codes or where condensate must be recovered rather than evaporated may need alternative solutions.

Key specifications

• Material: plastic (black finish)
• Weight: approximately 400 g
• Mounting: tool-free installation on the underside of roof-mounted cooling unit
• Function: collects and evaporates condensate into the cooling unit exhaust airflow
• Application area: roof-mounted cooling units for enclosures and server racks

How to use

Mount the condensate evaporator tool-free to the underside of a compatible Blue e+ roof-mounted cooling unit according to the cooling unit's installation instructions. Once attached, condensate produced by the cooling cycle will collect in the evaporator and be dispersed into the ambient air by the cooling unit's exhaust flow. Regular visual checks during maintenance intervals verify that the evaporator is free from obstruction and properly seated; follow the cooling unit manufacturer's service guidance for access and cleaning.

What to consider before purchase

• Compatibility with your roof-mounted cooling unit model (designed for Blue e+ roof-mounted units)
• Whether evaporating condensate to ambient air meets site regulations and environmental requirements
• Available exhaust airflow from the cooling unit to ensure effective evaporation
• Space under the roof-mounted unit to accommodate the evaporator and allow maintenance access

Usage recommendations

Use the condensate evaporator only with compatible roof-mounted cooling units and follow the cooling unit manufacturer's installation and maintenance instructions. Schedule periodic inspections to ensure the evaporator remains unobstructed and properly mounted; if site regulations prohibit evaporation to ambient air or require liquid collection, select an alternative condensate management solution.