The Copeland Scroll 6-10 HP commercial AC compressor family is designed for superior R-410A and R-407C efficiency and performance. The products� light, compact design can offer significant applied cost savings. The Copeland Scroll 6-10 HP compressor family is available as single and tandem configurations up to 20 HP, and can be used with Comfort Alert™ Diagnostics. Some the models feature Advanced Scroll Temperature Protection (ASTP) to guard the compressor from the scroll overheating.