Cooling rack fan module and method of cooling

A method of cooling comprising:

• disposing a fan module within a cooling unit, the fan module being configured to draw air into the cooling unit, the fan module including a housing having a first open end and a second open end spaced from the first open end, a fan assembly having a fan support, a fan rotatably coupled to the fan support, and a motor coupled to the fan to drive rotation of the fan, a mounting ring secured to the housing, a duct cover secured to housing at the second open end of the housing, and a noise reduction assembly disposed in the housing adjacent the fan assembly to reduce noise generated by the fan assembly;
• and
• moving air over the noise reduction assembly disposed in the housing of the fan module to reduce noise generated by the fan assembly,
• wherein the noise reduction assembly includes a holder configured to be secured to the housing, and an acoustic component secured to the holder, the holder includes a plate that is secured to the housing by the mounting ring and a rod having one end secured to the plate and an opposite end secured to the duct cover, the rod being configured to support the acoustic component.

A cooling unit comprising:

• a housing;
• a heat exchanger supported by the housing;
• and
• a plurality of fan modules supported by the housing and configured to draw air into the housing and through the heat exchanger, each fan module comprising
• a fan module housing configured to be secured within the cooling unit, the fan module housing having a first open end and a second open end spaced from the first open end,
• a fan assembly secured within the fan module housing at the first open end of the fan module housing, the fan assembly including a fan support, a fan rotatably coupled to the fan support, and a motor coupled to the fan to drive rotation of the fan, the fan support being to support the fan assembly within the fan module housing,
• a mounting ring secured to the fan module housing,
• a duct cover secured to fan module housing at the second open end of the fan module housing, and
• a noise reduction assembly disposed in the fan module housing adjacent the fan assembly to reduce noise generated by the fan assembly,
• wherein the noise reduction assembly includes a holder configured to be secured to the fan module housing, and an acoustic component secured to the holder, the holder includes a plate that is secured to the housing by the mounting ring and a rod having one end secured to the plate and an opposite end secured to the duct cover, the rod being configured to support the acoustic component.