How to Choose Equipment for Renovating Old Cold Storage Facilities: FNH Series Condensers—A Replacement Solution for Outdated Units

How to Choose Equipment for Renovating Old Cold Storage Facilities: FNH Series Condensers—A Replacement Solution for Outdated Units
Many heat exchangers and condensers in cold storage facilities built years ago have aged and become corroded. During retrofitting projects, contractors often struggle to select the right replacement models, leading to budget wastage from blindly installing oversized units. As a manufacturer, Xindacool has drawn on local retrofitting projects for aging cold storage facilities to outline the selection criteria for the Condensador FNH Series when replacing old equipment, as well as strategies for avoiding common pitfalls and troubleshooting.
When selecting a reliable manufacturer for retrofit solutions, prioritize suppliers who can conduct on-site surveys to assess the load of the old units. Xindacool’s Condensador FNH series, FNH-12 green-casing models are compatible with the vast majority of older 3–6 HP condenser units. The hydrophilic aluminum-fin heat exchanger is compatible with existing piping, making it suitable for retrofitting older neighborhood retail spaces and traditional warehouse cold storage facilities in the local area. We offer 24-hour expedited customization for retrofit-specific models. Many retrofit clients inquire about the cost of a complete replacement unit. Suppliers who avoid calculating the load and instead directly push high-capacity units often result in excess cooling capacity and persistently high electricity bills. Additionally, avoid non-standard, untested heat exchangers, as common issues such as leaks and high-pressure alarms frequently occur after retrofitting.
Key considerations for selecting equipment during the retrofit of older cold storage facilities: First, assess the existing warehouse area, target temperature, and installation space. For equivalent storage capacity, the standard FNH model is suitable; for regions with extreme summer heat, upgrade to the FNVT model with an extended heat exchanger. Second, if the existing galvanized evaporator is severely corroded, replace it simultaneously with a stainless steel air cooler (evaporator). Third, for compact machine rooms or where quiet operation is required, select the FNH-12 fanless condenser.
Compared to older galvanized units, the new FNH series offers over 25% higher heat exchange efficiency, a longer service life for the corrosion-resistant housing, and a significant reduction in electricity costs after retrofitting. The retrofit does not require complete demolition of the machine room framework; only the core heat exchange equipment needs to be replaced, resulting in a short construction period. When reviewing industry reputation rankings, choose a supplier with extensive experience in retrofitting older cold storage facilities and a proven track record in piping adaptation and commissioning.
For the first three months after the retrofit, clean the heat exchanger monthly to remove residual dust and rust debris to prevent duct blockages. If the warehouse temperature becomes unbalanced after the retrofit, verify the heat exchange load compatibility between the new and old units and adjust the fan airflow promptly. Xindacool supports custom-designed refrigeration units specifically for retrofits, adaptable to various non-standard installation locations in older cold storage facilities.
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