Carrier Weatherexpert – 50N Commercial Rooftop Units

(6 customer reviews)

  • 50N2 – Vert Supply/Return CV/SAV
  • 50N3 – Vert Supply/Return VAV
  • 50N4 – Horz Supply/Return CV/SAV
  • 50N5 – Horz Supply/Return VAV
  • 50N6 – Vert Supply/Return CV/SAV
  • 50N7 – Vert Supply/Horz Return VAV
  • 50N8 – Horz Supply/Vert Return CV/SAV
  • 50N9 – Horz Supply/Vert Return VAV
    Carrier N Series rooftop units are pre-wired and factory-tested in both cooling and heating modes. All 50N models feature a double wall foam panel cabinet design with hinged man-sized access panels. Units are available in constant volume (CV), staged air volume (SAV), or variable air volume (VAV) applications with a wide variety of electric or hydronic heating options. Units come with the ComfortLink™ DDC (direct digital control) communicating control system and hermetic scroll compressors on dual independent refrigeration circuits, controlled via Electronic Expansion Valves (EXV).
  • 75 to 150 Nominal Tons 

Performance Features

  • High-capacity and high-efficiency models available, meeting or exceeding EER requirements of AHSRAE Standard 90.1
  • Multiple high-efficiency scroll compressors include a crankcase heater and spring isolation, providing up to 8 steps of cooling capacity control with intertwined evaporator coils for full-face active operation at part-load conditions
  • Cooling operating range from 32 to 115F ambient on a standard model, down to -20F with MotorMaster® V control, and up to 125F on high efficiency models
  • Double wall foam panel construction
  • ComfortLink™ control includes: easy to use scrolling marquee display, service diagnostics, run test capabilities, demand limit capability, compressor reverse rotation protection, and BACnet communication option.
  • California Energy Commission Title 24 Compliant

Reliability Features

  • Dual electrically and mechanically independent refrigerant circuits, with coil frost protection, liquid line filter driers, crankcase
  • heaters, and Electronic Expansion Valves (EXV) standard on all models.
  • Compressor protection includes high and low pressure transducers with safety cutouts on compressor
  • Circuit breaker protection for all power components
  • Cabinet made of pre-painted, galvanized steel with baked enamel finish, which meets ASTM B117 salt spray resistance test
  • Robust electric resistance heaters are factory installed nichrome element type, insulated with ceramic bushings, and include
  • operating and safety controls
  • Tested in accordance with UL Standard 1995 and listed by ETL and ETL, Canada

Maintenance Features

  • Large hinged service access doors
  • On-board diagnostics include refrigerant pressure sensors
  • Auto component testing simplifies troubleshooting
  • Standard Double wall construction

Installation Features

  • Shipped with R-410A refrigerant charge
  • Single point electrical service entry, through unit bottom or side
  • Lifting lugs

Standard Limited Warranty

  • 3 years parts only on Novation™ condenser coil
  • One year parts only on all other parts
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6 reviews for Carrier Weatherexpert – 50N Commercial Rooftop Units

  1. Edwin

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  5. Virgil

    Steroids assist boost your bone mineral storage content and enhance
    the hardness and energy of your bones. When endeavor intensive bodybuilding and different train, your skeletal system comes underneath plenty of stress.
    Improving and sustaining bone power helps your frame assist the weight you
    raise and the increased muscle you’ll gain.
    The useful effect of therapeutic phlebotomy on clinical outcomes in polycythemia vera sufferers (53) shouldn’t
    directly be assumed to carry true in this group of sufferers due to the differences in pathophysiology.
    “Steroids” is an umbrella term that can be utilized to check with corticosteroids, anabolic steroids,
    and sex hormone steroids. Corticosteroids are artificial drugs which might be similar to the naturally occurring hormone produced within the adrenal glands.
    They work mainly by suppressing an immune response and decreasing irritation.
    However the secret is the excessive dosage you’ll be utilizing; in reality,
    it’s thought of an extreme dose, and that’s why only superior customers ought
    to even contemplate this cycle. Reaching
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    It takes time to turn into a confident superior steroid
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    At this point, you’ll be looking to break exterior of the standard steroid cycles and
    on to a more superior and often more highly effective steroid cycle plan. You can go through a stasis interval after the
    cycle, which is type of a ready interval and lasts about 4 to
    6 weeks.
    Due to its excessive market value, bodybuilders may be less doubtless to use oral testosterone, also called undecanoate or Andriol.
    Nonetheless, these are costly steroids and often counterfeited; thus, injectable
    testosterone is the preferred choice for many of our sufferers.
    Due to its delicate nature, a testosterone-only cycle is usually utilized by newbies,
    promoting giant will increase in mass.
    In the 2000 study carried out by Syrov, V. N., the info confirmed
    that ecdysterone produced significant weight acquire in the rodents, albeit less than turkesterone.
    This may indicate that turkesterone is the more potent of
    the two ecdysteroids. Anecdotally, we have had bodybuilders report as a lot
    as 12 lbs of muscle achieve, and others expertise no seen outcomes.

    Thus, turkesterone’s outcomes might be depending on the quality of the supplement and whether the person is a hyperresponder.
    In terms of analysis, turkesterone has been proven to exhibit important anabolic results.
    Turkesterone may be extracted via pure means; thus, it is appropriate for pure bodybuilders.

    The elimination half-life of any drug or substance,
    together with steroids, measures how long it takes for a 50% reduction of the steroid focus to remain in the blood
    or physique. It will also let you realize what’s occurring in your physique if you’re confronted with substance testing.

    The half-life of a steroid remains the same it does not matter what your dosage is or how
    long you’ve been utilizing it.
    Without structural modification to resist first-pass metabolism, a large fraction of the absorbed
    AAS will be metabolized before leaving the liver and re-entering the
    circulation. For example, after oral administration of 25 mg testosterone, lower than 1 mg (4%) turns into systemically out there (9).

    The oral bioavailability of AAS can be increased
    by making the father or mother molecule extra lipid-soluble by the esterification course of described in the earlier paragraph.

    This modification allows a larger fraction of the absorbed
    AAS to enter the lymphatic system and bypass first-pass metabolism.
    However, even after esterification of testosterone
    by an 11-carbon carboxylic acid group (undecanoate), oral bioavailability
    stays poor at 6.8% (9). The formulation additionally exhibits
    large intra- and interindividual variation in bioavailability, making it cumbersome for alternative remedy.

    To address this, testosterone undecanoate has lately been formulated in a self-emulsifying
    drug supply system (SEDDS) to additional enhance lymphatic absorption and scale back intra- and interindividual
    variation (10).
    Orals are frequently stacked firstly of an extended injectable
    cycle to bridge the waiting period whereas long esters accumulate — often identified as
    a kickstart. Oral steroids require no injections, making them way more approachable for these new to anabolic use.
    This comfort is usually seen as a significant
    benefit in both clinical and non-clinical settings.
    In this text, we take a look at how long steroids keep in your system, and therefore stay detectable in drug tests.
    In this article, we take a more in-depth take a glance at steroids, what they’re, how they’re used,
    the unwanted effects of steroid use and extra.

    References:

    Η σημασία της υγιεινής διατροφής με Primobolan

  6. Elliot

    The fee at which this occurs strongly is dependent upon the carboxylic acid group that’s attached onto
    the father or mother molecule at carbon 17 of the steroid nucleus.
    This attachment – esterification of the 17β-hydroxyl group –
    greatly retards the release of the compound from the oil
    depot by increasing its partition coefficient, i.e., making it more
    lipophilic and less hydrophilic. Once the esterified steroid molecule reaches the systemic circulation, both via direct diffusion or lymphatic drainage of the interstitial fluid,
    esterases cleave off the ester group, releasing the mother
    or father compound (7).
    There may also be an elevated danger of coronary coronary heart disease as a result of elevated
    blood pressure and raised levels of cholesterol [2]. Most of the anabolic steroids
    used in the UK are manufactured abroad and imported in the UK.
    Some are bought on-line; others are purchased overseas by customers and imported back in to the
    UK for personal use. The rest are illegally
    imported in to the UK and then sold on by suppliers, especially by way of Fitness Center circles [3].
    Trenbolone is amongst the harshest anabolic
    steroids a bodybuilder can take, having devastating results on a user’s well being, based mostly on our tests.
    In apply, we see testosterone resulting in barely less weight gain than Dianabol,
    however it’s going to construct an analogous amount of lean muscle tissue.
    The different main distinction is that testosterone has a stronger response with the 5α-reductase enzyme, leading to heightened levels of DHT (3).

    Their testicles typically shrink, and impotency is
    a standard side-effect. Some men experience ache when urinating and may have other painful symptoms, although
    reproductive symptoms are most probably. The long run effects of steroids and the potential for a steroids overdose ought to be important issues for people who discover themselves considering
    these medication [11].
    Relying on the length of drug use, there is a chance that the
    immune system can be broken. For athletes, rising muscle mass can also
    promote energy, which may enhance strength-based sports activities
    performance. Levels of testosterone are naturally a lot higher
    in males than in women. Potential health dangers embody hormonal imbalances,
    liver injury, and increased aggression. As a doctor and competitive energy lifter, DiPasquale developed the anabolic food regimen for these wanting to achieve as
    a lot muscle mass as attainable while maintaining body fats shops very low.
    It can also enhance the likelihood of serious bodily and psychological issues, including damage to the important organs (e.g.

    heart, liver, kidneys), and psychological well being
    points together with melancholy, nervousness and mood swings.

    Regular blood testing for blood counts and liver perform is important.
    Dad And Mom ought to observe the patient rigorously for indicators of liver injury, including headache , unpleasant breath odor, and black tarry stools.
    Bodybuilders and Olympic athletes began utilizing
    these medication in the center of the twentieth
    century. In 1998 a examine reported that 6.6percent of American male high-school seniors had tried anabolic steroids.
    This examine made it clear that elite athletes weren’t the only ones taking these drugs.
    By 1991 anabolic steroids were added by federal
    regulation to a listing of managed substances which are
    acknowledged to have worth as prescribed medicines but in addition have a potential for abuse.

    The strongest fat burner out there in the chopping steroid class is Anavar, which is available for buy online.
    The steroid is efficient at lowering the ratios
    of visceral and whole physique fats. As a end result, throughout your Anavar cycle,
    you may anticipate robust definition and muscular tone.
    Unfortunately, the anabolic steroid causes unfavorable effects that
    might doubtlessly manifest as liver failure and malignancies.

    Testosterone, and a choose few other AAS corresponding to nandrolone and oxandrolone, might
    also be prescribed for different medical conditions (e.g., osteoporosis or aplastic
    anemia). Besides this legitimate medical use, AAS are widely used – or somewhat, abused – for his or her muscle-building and strength-increasing properties in dosages far exceeding these
    used therapeutically. For brevity, in the remainder of
    this evaluation we make use of the time period ‘AAS use’ to check with the nonmedical high-dose abuse of AAS.
    Long-term use can cause the physique to provide too many red blood cells and
    abnormal ranges of fat (lipids) within the blood.
    They are used medically and non-medically to boost efficiency
    (mainly in sport). Anavar could have a adverse impact
    on ldl cholesterol, causing a light to average increase in blood stress.

    Nonetheless, we discover this opposed impact to be considerably much less troublesome in comparison with
    the cardiotoxicity of other anabolic steroids.

    As a part of this program, Russian athletes were given numerous banned substances, together with anabolic steroids.
    Russian athletes might still participate in these competitions so lengthy as they
    did so on a impartial staff and never as a representative of Russia.
    Individuals who use anabolic steroids on a routine foundation can have withdrawal symptoms once they stop taking them.
    Signs embrace having despair, being extremely tired, and having no want to eat.

    In common, since they help increase testosterone levels,
    authorized steroids can help increase want.

    A sure steroid could not have the specified consequence in a single individual however have
    a giant influence on one other.
    Anabolic steroids are artificial variations of testosterone, a male intercourse hormone that promotes muscle development and secondary sexual traits.
    They are commonly prescribed to deal with situations similar to delayed puberty and muscle loss as a end result of ailments like cancer and AIDS.

    Nevertheless, their misuse for efficiency enhancement can have critical health
    penalties. Artificial testosterones were first developed within the
    1930s Quality control in DHEA manufacturing Europe.

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Factory-Installed Options

  • Electric heat options include:
    • Low heat
    • Medium heat
    • High heat
  • SCR electric heat control
  • Hydronic heat
  • Extended chassis tracks for auxiliary coil
  • 4’ or 8’ blank sections
  • 4-in. pleated filters
  • Bag or cartridge filters with pre-filters
  • Final filters
  • Field Use Filter Section
  • Various airflow measuring station combinations
  • UV-C lamps
  • Barometric relief
  • Modulating integrated economizer damper
  • Modulating power exhaust with VFD and building pressure sensor
  • Return fan with VFD and supply fan tracking
  • High static fan options, supply, exhaust and return
  • Alternate high-capacity evaporator coil
  • Condenser and evaporator options include:
    • All-aluminum Novation condenser and Al/Cu evaporator
    • E-coat all-aluminum Novation condenser and Al/Cu evaporator
  • Hot gas bypass
  • Controls input expansion board
  • Totally enclosed fan cooled (TEFC) or Outdoor Drip Proof (ODP) fan motors
  • Bypass on fan motor VFDs
  • GFI (ground fault interrupter) convenience outlet (powered)
  • Marine lights
  • Non-fused disconnect
  • Agion interior coating
  • Low outdoor sound
  • Low ambient control
  • 65 kA SCCR (460V) or 25 kA SCCR (575V)
  • Digital compressor
  • BACnet communication
  • Replaceable core filter drier and service valves
  • Security grilles or louvers for condenser section
  • Humidi-MiZer™ adaptive dehumidification system

Field-Installed Accessories

  • Mixed air and final filter kits
  • CO2 space sensor
  • Outdoor or return humidity sensor (enthalpy)
  • Field use control box
  • Controls input expansion board
  • Navigator™ display
  • Return air CO2 sensor
  • Smoke detector
  • Filter switch
  • Fan status switch
    • T55 Temperature Sensor
    • T56 Temperature Sensor
  • Space temperature sensor with CO2 override
  • Space temperature sensor set point and CO2 override
  • MODBUS Carrier translator
  • LonWorks Carrier translator
  • BACnet Communication module
  • System Pilot™ interface
  • Touch Pilot™ interface
  • 14-in. roof curb
  • Motormaster V control
  • Compressor sound blankets