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Refrigerant piping on a rooftop package unit typically consists of insulated copper tubing that connects the evaporator and condenser sections of the unit, allowing for the circulation of refrigerant. Proper installation is crucial to ensure efficient operation, prevent leaks, and maintain system pressure. Additionally, the piping must be adequately supported and sloped to facilitate drainage of any potential condensate. Regular inspection and maintenance are essential to identify and address any issues that may arise over time.
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What is the code that require a Pipe Hydro Test Package?
The code that typically requires a Pipe Hydro Test Package is the ASME B31.3, which governs the design and construction of process piping. This code mandates hydrostatic testing as a means to verify the integrity and leak-tightness of piping systems. Additionally, other codes such as ASME B31.1 for power piping may also have similar requirements. Compliance with these codes ensures safety and reliability in piping systems under operational conditions.
Your consultants are asking you to pass nitrogen through copper pipes while brazing to prevent oxidation inside the pipes. These pipes are for refrigerant. Is this a regular practice?
AnswerPumping nitrogen through refrigerant piping during brazing is an excellent practice. The reason is that nitrogen helps to prevent the buildup of oxide scale on the inside of the pipes during the brazing process. Refrigerant is a natural cleaning agent, and as it is being pumped through the pipes it will pick up the scale and contaminate the refrigerant. It is possible that this will damage to the compressor.
What is the difference between a piping designer and piping engineer?
Designer mostly drafting, piping engineer mostly calculation
What the difference between process piping and utility piping?
Process piping contains the product or piping integral to the process of creating the product. Utility piping is supporting the process but is not integral to the process, typically fresh water, cooling water, steam, condensate
That is function anode and cathode piping?
that is function of anode and cathode in underground piping yes
Does the refrigerant always need recharging when a rooftop condenser unit is replaced?
No, the new condensing unit comes precharged. Once the piping is connected to the new unit , the piping and evaporator coil only needs to be evacuated then open the valves on the new condenser. The condenser comes charged with the proper amount of refrigerant for a 50`or less run of pipe (one way). Longer piping runs may require a small amount of additional refrigerant. But, I have heard recently some supply houses are now selling new R-22 condensers without the precharge (in order to circumvent the EPA regulations regarding R-22). But I would guess that is rare and is with new R-22 units only.
What should rooftop gas piping be?
Galvanized piping or painted depending on local codes and type of fuel (gas) NO drip legs where the piping is subject to freeze ups
How does refrigerant change phases inside piping of an AC?
The phase transitions of a refrigerant inside piping of an AC areFusion/Freezing, Vaporization/Condensation and Sublimation/Deposition. Matter can exist in three different phases: solid, liquid, and gas.
What are the parts of an hvac unit?
There are a lot but some of them are * Fan * Coils * hot water piping * chilled water or refrigerant piping * Pumps * Distribution system(ductwork)
What is the code that require a Pipe Hydro Test Package?
The code that typically requires a Pipe Hydro Test Package is the ASME B31.3, which governs the design and construction of process piping. This code mandates hydrostatic testing as a means to verify the integrity and leak-tightness of piping systems. Additionally, other codes such as ASME B31.1 for power piping may also have similar requirements. Compliance with these codes ensures safety and reliability in piping systems under operational conditions.
What makes the high side of ac system too high?
Excessive refrigerant charge, or (less likely) a blockage or kink in the high side piping.
What are the pros and cons to a package unit system for HVAC?
Drop it in, connect the ductwork and wiring that`s it. No field piping, leak checking,evacuation or charging.
When not to use PTFE tape?
Certain restrictions regarding Teflon such as gas piping require a different type of teflon appreoved for the type of fuel going though the piping When connecting tublar waste lampwick does an amazing job not to be confused with quickwick
What the difference between process piping and power piping?
What the difference between process piping and power piping?
What are the best practices for installing refrigerant piping insulation to ensure optimal efficiency and performance of the HVAC system?
The best practices for installing refrigerant piping insulation to ensure optimal efficiency and performance of the HVAC system include using proper insulation material, ensuring a tight and secure fit around the pipes, minimizing gaps and overlaps, and protecting the insulation from moisture and physical damage. Proper installation can help prevent energy loss and maintain consistent temperature control in the system.
Your consultants are asking you to pass nitrogen through copper pipes while brazing to prevent oxidation inside the pipes. These pipes are for refrigerant. Is this a regular practice?
AnswerPumping nitrogen through refrigerant piping during brazing is an excellent practice. The reason is that nitrogen helps to prevent the buildup of oxide scale on the inside of the pipes during the brazing process. Refrigerant is a natural cleaning agent, and as it is being pumped through the pipes it will pick up the scale and contaminate the refrigerant. It is possible that this will damage to the compressor.
Can anyone tell me about Seabirdgroups and there field piping engineering course?
To enter into the Oil & Gas Industry with good package,its good to get a Field Piping Engineering Course ,,also Seabird groups have good name in this course ,and now they came up with online courses ,,soo that anyone can get benefit from any location....
