Cold Room Door Air Curtain Type, Installation Position & Selection Standard
Air curtain creates invisible air isolation at cold room door opening, reduces hot humid air infiltration, cuts frost generation on air cooler. Two mainstream types: centrifugal air curtain and cross flow air curtain; centrifugal type has stronger wind pressure, used for low temp and big door. Cross flow air curtain is quieter, low cost, suitable for medium temperature fresh cold room with small swing door. Installation rule: air curtain mounted directly above door opening, airflow slightly inclines toward outside (5~10°), enhance isolation effect. Wind speed selection: medium temp cold room ≥5m/s; frozen cold room ≥8m/s; blast freezer ≥10m/s. Xiteliduo air curtain matched with cold room door supports 380V export voltage, optional EC fan energy saving model. Air curtain only works when door opens; interlock with door switch to stop fan after door closes, save power. Improper installation angle (blow inward) will push cold air out of cold room and increase refrigeration load reversely. Air curtain cannot replace door sealing; it is auxiliary isolation measure, cannot work if door stays open for long time. Refrigeration maintenance & repair company checks air curtain wind direction and fan balance when cold room frost frequency rises obviously.
FAQ
- What are two common air curtain types for cold room? Centrifugal and cross flow air curtain.
- Which air curtain suits low temperature frozen and large sliding door? Centrifugal air curtain with high wind pressure.
- What is the recommended airflow inclination angle of air curtain? 5~10° towards outside.
- What wind speed standard for blast freezer air curtain? ≥10 m/s.
- How to realize energy saving control for air curtain? Interlock with door switch, run only when door opens.
- What negative effect if air curtain blows inward into cold room? Cold air escapes outward and refrigeration load rises.
- Can air curtain replace cold room door sealing? No, it is auxiliary isolation, not substitute of door seal.
- Which air curtain type is quieter for medium temp fresh cold room? Cross flow air curtain.
