Refrigerant Line Insulation Thickness

In typical conditions a 1 inch thickness is the standard.

Refrigerant line insulation thickness.

Mandated changes in refrigerants are resulting in colder line temperatures which require increased insulation thickness to prevent condensation. Two different diameter copper refrigerant lines one approximately 1 4 second 3 4 diameter depends on your system size and distances run between the air conditioning system condensing unit house exterior and the ac coil a coil named after its shape. To determine the vrf refrigerant insulation requirements you will need to know several things to. Overall this is good news giving mechanical insulation an opportunity to contribute to greater building energy efficiency.

Liquid lines generally are insulated. There is a double suction riser on one of the circuits. Pipe insulation thicknesses are greater than or equal to those in the 2007 standard but duct insulation thicknesses have not changed. This also applies to the need for epdm on insulated coils line sets going to the fan coils.

If it was all vrv vrf manufacturer s would require 2 1 2 on the high pressure lines. Refrigerant line insulation is partially responsible for the efficiency of your air conditioning system operation. What are the new pipe and duct insulation thickness requirements in standard 90 1 2010. In our photo at above left where refrigerant line insulation is incomplete the drip stains on the attic floor may well indicate a point at which leak.

99 get it as soon as wed sep 30. Missing or damaged refrigerant line insulation insulation on the refrigerant lines particularly on the larger suction line will cause condensation and drips from the lines in humid areas. This is not what dictates insulation thickness. The thickness required for low temperature pipes like refrigerant and chiller water is less than higher temperature pipes and smaller pipes require less insulation as well 1 in general refrigerant suction lines and chilled water pipes require either 1 2 or 1 insulation depending on the size and temperature of the pipes.

The roof of a building at roof level or if they could be considered hot enough to pose a safety risk then insulation should be added. 2 hot pipes require. However in some cases where humidity is high over 80 percent a 1 inch thickness may be used. If liquid lines pass through a space that is warmer than the refrigerant i e.