!WARNING

DO NOT USE OXYGEN TO PURGE LINES OR PRESSURE SYSTEM FOR LEAK TEST . OXYG EN REACTS VIOLENTLY WITH OIL, WHICH CAN CAUSE AN EXPLOSION RESULTING IN SEVERE PERSONAL INJURY OR DEATH.

FIGURE 5

LIQUID LINE PRESSURE DROP PER 100 FEET EQUIVALENT LENGTH (TYPE L COPPER TUBING)

NOTES:

1.When evaporator coil is above condenser, the pressure drop due to vertical lift (.5 PSIG per foot of lift) must be added to the pressure drop derived from this curve.

2.Size liquid line for no more than 10°F loss (approximately 50 PSIG total pressure drop).

3.Do not oversize liquid line. Oversized liquid lines add significantly to the amount of refrigerant required to charge the system.

4.The maximum recommended velocity with solenoid valves or other quick closing devices in the liquid line is 300 FPM.

A. INSTALLATION OF PIPING

Once located, the condensing unit is ready to be interconnected with the evaporator using ONLY refrigeration grade dehydrated tubing. The following should be considered when connecting the tubing.

1.Pitch the suction line toward the compressor approximately 1⁄2 inch every 10 feet to facilitate oil return.

2.It is recommended that the sight glass, filter drier and liquid line solenoid valve be installed in the liquid line just prior to the evaporator.

3.Silver solder (such as silfos, Easy Flow, etc.) should be used for all refrigerant joints.

4.Thoroughly clean all joints before fluxing. DO NOT USE ACID FLUX.

5.When fluxing, limit the application of paste to the minimum and always apply flux to the male portion of the connection.

6.Suction lines should be insulated to prevent condensate drip. Use insulation of at least 3⁄8 inch wall thickness. The insulation should be installed on the tubing prior to making the sweat connections.

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Heat Controller R-410A installation instructions Installation of Piping
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R-410A specifications

The Heat Controller R-410A is an advanced refrigerant used in various heating and cooling applications, particularly in residential and commercial air conditioning systems. Recognized for its efficiency and eco-friendliness, R-410A has become a popular choice among HVAC manufacturers and professionals.

One of the main features of R-410A is its high efficiency. It operates at a higher pressure than traditional refrigerants, which allows it to transfer heat more effectively. This results in improved energy efficiency ratings (SEER and EER) for systems utilizing R-410A, leading to lower energy bills and reduced environmental impact.

R-410A is also known for its environmental sustainability. Unlike its predecessor, R-22, R-410A has zero ozone depletion potential (ODP) due to its composition of hydrofluorocarbons (HFCs). Although it does have a global warming potential (GWP), the advancements in technology have made R-410A a more environmentally friendly option compared to many older refrigerants.

Developed through innovative technological advancements, R-410A systems often incorporate variable speed compressors and efficient heat exchangers. These technologies allow for better modulation of cooling and heating outputs, ensuring that the indoor environment remains comfortable while using the least amount of energy possible.

Another significant characteristic of R-410A is its compatibility with a wide range of HVAC equipment. Many new air conditioning systems are designed specifically to use R-410A, which has led to the creation of a robust market for these units. Additionally, R-410A systems tend to require less maintenance and have longer lifespans compared to those using older refrigerants.

Safety is another consideration for R-410A users. While R-410A is non-toxic and non-flammable, technicians who work with this refrigerant need to be trained and certified due to its high-pressure properties. Proper handling and installation are crucial to ensure system efficiency and reliability.

In summary, the Heat Controller R-410A stands out in the HVAC industry for its efficiency, environmental benefits, advanced technologies, and compatibility with modern systems. As the industry continues to evolve, R-410A remains a key player, paving the way towards more sustainable and efficient heating and cooling solutions.
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