GETTING IT RIGHT FIRST TIME
Specifying your cold store air curtain .
Correct sizing is the single biggest determinant of real-world performance. The most common installation mistakes are undersizing, mounting too high, and ignoring pressure differentials across the door. Use these six checks — or let our technical team confirm the specification for you.
01 · DOORWAY MATCH
02 · MOUNT HEIGHT
03 · DISCHARGE ANGLE
Match length to the full doorway width
Mount as close to the top of the doorway as practical
Aim the discharge slightly toward the warm side Typically 5–20 ° outward. This compensates for the pressure differential pushing back on the jet and keeps the seal intact.
An air curtain shorter than the door cannot seal the edges — the very point where infiltration is highest. Always match unit length to full opening width.
The higher the mount, the more jet velocity is lost before the air reaches the floor. Keep the unit as low as the structure allows.
04 · DOOR SWITCH
05 · COMMISSIONING
06 · RIGHT UNIT FOR THE DUTY
Wire to a door switch — don't run it continuously Cycle the unit with door operation. The Thermoscreens CS Series Door Switch Control raises fan speed on opening and reduces or stops it on closing.
Measure airflow at the floor, not just the discharge The floor is where the seal either works or fails. Commission against the worst-case pressure scenario, not average conditions.
Specify a cold-store-rated unit for sub- zero applications Standard commercial entrance air curtains are not interchangeable with cold room units. For freezers, choose CS or Slimline CS with built-in frost protection.
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