Commissioning the Sierra College HVAC system today 40933
HVAC condenser units allow folks to be comfortable in their houses. Using refrigerant, they pull the heat and humidity from of the air and return nice, dry, and cool air. Most regarding the moment it is best to own a professional heating and air conditioning technician install any new HVAC condenser unit. You need a special refrigerant authorization to handle and put in the refrigerant that goes into condenser units. If you have this certification, all the same, you can set up an HVAC condenser unit yourself.
Trouble: Challenging Instructions
Things You'll Need:
Copper tubing
Copper fittings
Copper tubing cutter
Brazing torch
85/15 brazing rod
Tape plan
Cordless drill
Assorted wrenches
Utility knife
Refrigerant gauges
Vacuum pump
Refrigerant
Electrical wire
Electrical fittings
Wire stripper
1 Select an suitable place for your HVAC condenser unit. Appear for a spot that yous strong enough to help the unit and allows the unit to be serviced easily. Degree the unit and place on treated lumber or steel framing. Anchor the unit lower to prevent the unit from shifting during operation.
2 Check the unit also make certain no parts need occur loose throughout shipment. Examine all bolts, electrical connections, etc.
3 Properly size all copper tubing using some line chart. Install and braze the copper tubing for the liquid and suction lines. When brazing, flow one inert gas love nitrogen through the lines to prevent scale and oxidization in the lines. The copper tubing will hook upward from the condensing unit external to the evaporator coil on the indoor unit. Safe plus help all lines with copper pipe straps. The smaller the pipe, the more straps you will need.
4 Leak-check the unit by opening all service valves plus pressuring the unit to 150 PSI with dry nitrogen. Let the unit sit down for numerous hours. If you observe the pressure has dropped, leak-check all connections and joints with soap bubbles.
5 Insulate all copper tubing with Armaflex pipe insulation (see Reference 2). If lines are not insulated, this will cause possible unit malfunction and sweating of the copper lines. This insulation cuts extremely easily in a utility knife also self-adheres together.
6 Release the nitrogen pressure away about the lines and start evacuating the lines. This is done by hooking the refrigerant gauges upwards to the high also low side and starting the vacuum tap. This removes all contaminants outside of the lines by essentially pulling all air plus moisture away.
7 Wire the unit up to the electrical panel by consulting the individual unit's wiring diagram also local electrical codes.
Tips & Warnings
Most units need the outside temperature to be over 55 degrees Fahrenheit to properly charge the unit together with the correct volume of refrigerant.
Keep twists and bends of copper tubing to a minimum to make sure the best possible effectiveness regarding the condensing unit.
Refrigerant authorizations are crucial to install condensing units and charge it with refrigerant. Without this certification, you are subject to big excellents if caught using refrigerant.
