AeroSys Inc. manufactures multi-family residential space constrained, thru-the-wall air conditioners, heat pumps and hydronic chilled/hot water fan coil units from 1-1/2 to 2-1/2 tons of cooling capacity for multi-tenant apartments, condominiums for new construction and renovation. AeroSys Inc. also produces commercial CRAC ceiling mounted units up to 2½ tons of cooling capacity. CeilMate units are available in a variety of sizes and configurations for laboratories, data centers, telecom rooms and other special applications. All products are made in the USA.How to Install a Ductless Mini-Split Air Conditioner This Old House plumbing and heating expert Richard Trethewey explains how the pros retrofit a compact cooling unit In this video, This Old House plumbing and heating expert Richard Trethewey explains how the pros retrofit a compact cooling unit. 1. Turn off the electricity to the circuit. 2. Hold mounting bracket to the wall, level it, then mark the screw hole locations and where to bore a hole for the refrigeration lines, condensate discharge line and electrical cable.

3. From inside, bore hole into the block wall with rotary hammer and 3-inch-diameter masonry coring bit. Once the bit's pilot penetrates the wall, finish boring the hole from the outside. 4. Screw the mounting bracket to the wall, making sure it's level. 5. Install the air-conditioning unit to the wall-mounted bracket. Pass the refrigeration lines and condensate discharge line through the hole in the wall. 6. Attach a vertical chase directly below the hole in the exterior wall; the chase will house the refrigeration lines, condensate discharge line and electrical cable. 7. Extend the condensate discharge line down to within a few inches of the ground by attaching a length of PVC pipe. Secure the discharge line to the pipe with duct tape. Fasten the lower portion of the pipe to the chase by screwing on a metal C-clamp. 8. Carefully bend the copper refrigeration lines down into the chase. Use two adjustable wrenches to remove the compression fittings from the ends of the copper lines.

9. Slide a brass nut onto a new length of copper tubing, then use flaring tool to flare the end of the copper tubing. 10. Hold the tubing's flared end against the end of the refrigeration line coming from the air conditioner. Hand-tighten the nut to hold the copper tubing to the refrigeration line. Repeat to attach the remaining refrigerant line. 11. Set the outdoor condensing unit onto a level pad adjacent to the chase. 12. Use two adjustable wrenches to tighten the compression fittings on the refrigerant lines. Then wrap pipe insulation around each line. 13. Run weather-tight conduit from an outdoor electrical box to the condenser unit. Feed electrical wires through the conduit. 14. Run a length of nonmetallic electrical cable from the condenser unit through the hole in the wall to the indoor air conditioning unit. 15. Snap the cover onto the chase to conceal and protect the lines and cable. 16. Make all electrical connections at condenser and at air conditioner, then pressure test the system with nitrogen to 300 pounds per square inch.

17. Vacuum out the nitrogen, then open valves to release refrigerant into the system. 18. Turn on the electricity and test the air conditioner. Tools List for Installing a Ductless Mini-Split Air Conditionerac unit for 1500 sq ft house Rotary hammer with 3-inch-diameter masonry coring bitdiy ac repair parts Flaring tool, used to form flared end on copper tubingac unit is smoking Pressure gauge and nitrogen, used to pressure-test system Vacuum, used to extract nitrogen from system after testing Electrical wire and cable Duct tape and metal C-clampHow do I install a through-the-wall air conditioner? The installation of a through-the-wall AC unit may present a challenge for those who have not had previous carpentry experience.

If you have the carpentry skills, gather your materials: AC wall unit, circular saw, router, nails, hammer, caulk, tape measure, pencil, two pieces of 2-by-4 lumber, stud finder, level, utility knife, power drill, screwdriver, socket set, safety goggles, hand saw, miter box, and molding and finishing nails. What are some reliable air conditioner brands? What is ductwork installation? Prepare the areaMove any furniture or decorations out of the way, and remove any pictures or paintings from the wall.Locate the studs in the wallUse a stud finder to locate the proximity of studs in the wall and mark them so that you know where to cut only one stud.Cut the insulationUse a router to cut through the interior wall along the outline after measuring the dimensions of the unit. You may then cut away the insulation with the utility knife.Make the necessary wall holesUse a power drill to bore through the outside wall at each of the four corners from the inside, but use the holes drilled to stencil an outline on the wall on the outside.

Cut through the exterior wall along the outline with the circular saw, but use the hand saw to cut through any 2-by-4s blocking the hole.Level the unitUse the level to make sure the 2-by-4 fits on top of the cut vertical wall studs at the bottom of the hole. Repeat this step with another 2-by-4 at the top of the hole.Mount the bracketMount the AC bracket into the wall using the manufacturer's supplied hardware, and use the level to make sure it balances before securing.Install the unitSlide the AC unit into the hole, and secure it to the bracket using the manufacturer's supplied hardware after applying caulk to the outside bracket. Use more caulk between the outside of the unit and the exterior shingles or clapboards.Secure the unitSecure the unit by using a handsaw and miter box to cut appropriate-length molding at 45-degree angles. Place nail screws around the unit. How much do the best 5-ton air conditioners cost? Average prices for the Goodman DSXC18 series air conditioner are approximately $2,109 not including installation as of 2014, as reported by review website ...