Short answer: map the laboratory workflow before selecting capacity. List every material, its required conditions, package dimensions, access frequency, segregation rule, monitoring need, and failure consequence. Then specify the cabinet around that load.
1. Build a material inventory
Do not assume all reagents, kits, or specimens share one storage requirement. Record the manufacturer or protocol requirement, contamination or compatibility concerns, security needs, and whether material is volatile or otherwise unsuitable for the proposed cabinet. The laboratory's responsible person should approve the storage matrix.
| Workflow question | Design consequence |
|---|---|
| How many packages at peak load? | Usable capacity and shelf count |
| What are the largest package dimensions? | Shelf spacing, drawers, and door opening |
| How often is each item accessed? | Door format, recovery demand, and zoning |
| Which materials require segregation? | Separate bins, shelves, locks, or cabinets |
| What happens during a failure? | Alarm response, backup cabinet, and transfer plan |
2. Specify temperature performance
Ask for the temperature test method, sensor locations, ambient conditions, load, duration, uniformity, stability, and recovery. ENERGY STAR defines laboratory-grade refrigerator product categories around professional storage and testable energy-performance criteria, but an ENERGY STAR category or claim does not replace application-specific temperature qualification.
3. Choose doors and shelving from access patterns
Glass doors support visual stock checks, while solid doors may support different insulation or light-control needs. Multiple doors can reduce the exposed zone during access but add seals and hardware. Confirm shelf load, spacing increments, airflow clearance, cleaning method, and whether baskets or drawers are required.
4. Define monitoring, alarms, and records
- Independent temperature logger and calibration evidence where required.
- High and low temperature, door, power, and sensor-fault alarms.
- Remote alarm contact or network integration.
- Data export format, retention, review, and access control.
- Written response and backup-storage procedure.
5. Match capacity to the actual load
Roundfin's current 2–8°C range includes 140L, 390L, 550L, 770L, 900L, and 1240L formats. Ask for an internal drawing and place representative packages on a shelf plan before choosing.
6. Plan installation and acceptance
Confirm doorway access, floor loading, room ambient range, ventilation clearance, voltage, frequency, plug, current, heat rejection, drain or defrost needs, and service access. At handover, verify model and serial numbers, physical condition, alarm functions, monitoring, stabilization, and the agreed temperature test before loading critical material.