Cold Room Design – Engineering Approach

Panel Material

• Rigid Polyurethane Foam (PUF)
• Density: 40 ± 2 kg/m³
• Thermal conductivity: 0.018–0.020 W/mK

Panels Thickness (based on temperature)

• 60 mm – +10°C to +20°C
• 80 mm – 0°C to +10°C
• 100 mm – -5°C to -18°C
• 120 mm / 150 mm – -18°C to -30°C

Outer Sheet Options

• Pre-Painted Galvanized Iron (PPGI)
• Stainless Steel (SS304)
• Aluminium (Stucco finish)

Technical Benefits

Compressor Types

• Hermetically Sealed Compressors (for small cold rooms)
• Semi-Hermetic Compressors (Bitzer / Emerson / Dorin)
• Scroll Compressors (for medium temp)
• Two-Stage Compressors (for deep freezing)

Refrigerant Options

• R404A – Standard for low temperature
• R134a – Medium temperature
• R448A / R449A – Eco-friendly options
• R22 – Legacy systems (not recommended)

System Classification

Electrical & Safety Features

Types

• Hinged Doors (Manual)
• Sliding Doors (Manual / Automatic)

Technical Features

Options

• Aluminium chequered plate
• Anti-slip patterned sheet
• Marine plywood with insulation
• Epoxy flooring (for high hygiene zones)

Technical Considerations

Chillers (0°C to +10°C)

For fruits, vegetables, dairy, beverages.

Freezers (-18°C to -25°C)

For frozen food, ice cream, meat.

Blast Freezers (-30°C to -40°C)

For rapid freezing of meat, seafood & bakery.

Blast Chillers (+2°C to +4°C)

For hotel and industrial kitchens.

Controllers

• Fully digital temperature controllers
• PLC-integrated systems
• Remote monitoring (optional)

Monitoring Features

Routine Checks

Preventive Maintenance