An office building shuts off its air conditioning in November. A telecom shelter can't. Radios, batteries, and electronics keep producing heat whether it's 95°F or 15°F outside, so the shelter needs cooling all winter.
The problem with ordinary AC in cold weather
A standard air conditioner isn't designed to run when it's cold outside. Head pressure drops, the indoor coil can freeze, and the compressor can be damaged. Many residential systems aren't meant to run below about 55 to 60°F outdoors.
How our wall mount units handle it
- Low-ambient mechanical cooling. Every unit in our lineup is built to run its compressor for cooling down to 20°F outside.
- Economizer cooling in extreme cold. Economizer models can cool the shelter with outside air in economizer mode down to -40°F. In cold weather the compressor often doesn't need to run at all.
Why the economizer matters most in winter
In cold months, outside air is the cheapest cooling there is. The economizer brings in just enough of it to hold setpoint, and only the fan runs. That saves energy and saves compressor starts, which is where much of the wear on a unit comes from.
Don't forget heat
Shelters can also get too cold when equipment load is light, and battery performance drops in the cold. All of our units include electric heat, so one unit handles both cooling and heating.
Which to choose
For a shelter in a cold or moderate climate, the economizer models are usually the better long-term buy. See our economizer vs. standard guide, then browse the economizer units in our Wall Mount HVAC Units collection, from the 2-ton SAH1024AA050C to the 6-ton SGH1072AD090C.
Questions about your project? Call 509-379-7075 or email sales@eubankwallmounthvac.com.