Business & Industrial FAQs
How do I size an air curtain for a 3-foot door?
Pick a unit wide enough to cover the full opening and strong enough to throw a steady air stream to the floor from your mounting height. For a standard 3-foot door mounted around 7 to 9 feet high, models delivering about 10,240 to 15,360 BTU per hour are common starting points, with higher outputs used for wind-exposed or very busy entrances.
What’s the difference between a compact smart relay and a PLC?
A compact smart relay is ideal for simple automation—timers, counters, and basic logic—packed into a small, cost-effective unit. A PLC handles more complex tasks, larger I/O counts, faster processing, and advanced comms. If your sequence is straightforward, the smart relay saves space and money; if you’re expanding or need advanced logic, consider a PLC.
Why choose a supervised output module with an isolator?
Supervision monitors the wiring for faults like opens or shorts, alerting you before an activation fails. The isolator prevents a single line fault from affecting the rest of the loop. Together, they enhance safety, speed up troubleshooting, and improve system resilience.
Can an air curtain reduce energy costs in winter and summer?
Yes. In winter, it helps keep warm air inside; in summer, it helps block hot air from entering. By stabilising the interior near the entrance, the HVAC system cycles less often. Over time, that translates into measurable savings and better comfort for staff and customers.
What maintenance keeps air curtains and control panels performing well?
For air curtains, clean or replace filters, vacuum intakes, wipe outlets, and check fan wheels for debris. For control panels, tighten terminations yearly, clean enclosures, test spring return behavior on buttons and selectors, and verify supervision on input/output modules. A simple maintenance routine prevents many intermittent faults and keeps performance consistent.