Saturday, 25 November 2017

Why Is It Important To Maintain The Right Humidity Levels In Your Pool Room

An indoor pool is a huge investment, with many factors coming into play in safeguarding its lifespan and ensuring a lasting return. Chief among them: Proper climate control. While the design of pool facilities does not fall under the umbrella of the commercial HVAC service company servicing it, pool dehumidification and HVAC systems are integral to the safety and longevity of both the pool room building structure and its inhabitants.  

Why Is it So Important to Maintain Optimal Temperature & Humidity in Your Pool Room?

The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) recommends humidity levels in the 50-60% range and temperatures 2-4 degrees above water temperature in the pool room, based on ventilations codes devised to protect public health and safety. The reasons for such precise climate management are multifaceted:
  • To Maintain Comfort
    High humidity in hot weather is uncomfortable and potentially dangerous. On the flipside, low levels of humidity (dryer air) can cause swimmer discomfort due to evaporative cooling when exiting the pool. For this reason, ASHRAE recommends a relative humidity (RH) of 50-60% paired with a poolroom temperature of 2-4 degrees above water temperature – but not above 86°F.  
  • To Prevent Evaporation
    Proper RH can prevent evaporation – provided the proper configuration of commercial dehumidification systems including ductwork and grilles that are NOT aimed at the water’s surface, but at exterior walls and windows to eliminate condensation and evaporation.
  • To Preserve Indoor Air Quality
    Commercial HVAC mechanical contractors can also help you protect swimmers against the health dangers associated with mold, mildew and bacteria that thrive in humid poolroom conditions, creating unpleasant odors and potentially leading to respiratory issues, asthma and allergies. This is accomplished not only with dehumidifier technology, but maintaining negative air pressure to prevent the formation of condensation (in walls and ceiling spaces) and the dispersal of moisture and pool room fumes to other occupied areas of your home or building.
  • To Guard Against Structural Damage
    Pool dehumidifiers, such as a Dectron pool dehumidifier, can safeguard against the risks of increased humidity within your pool room, including wood rot, metal corrosion, peeling paint, mold and mildew, saving you costly safety and repair issues over the long run as well as upholding the inviting look of your pool space.
  • To Control Energy Costs
    Though it may seem counterintuitive, dehumidifiers not only aid in reducing summer cooling costs, but winter heating bills as well. As dehumidification systems remove excess moisture from the air, heat is given off as water vapor (humidity) is condensed into water. It is this heat that can be captured and transferred to warm your pool in today’s most efficient, technologically advanced dehumidification systems, lowering energy bills.
Protect swimmers and your indoor swimming pool investment with the help of best commercial HVAC company in New Jersey. From pool dehumidification to indoor air quality and commercial air conditioning, service and maintenance, we've got you covered. Contact H&H Commercial Services today.

Tuesday, 21 November 2017

Building an Indoor Pool? 6 Things you need to know!

Indoor pools are becoming an increasingly popular trend for their year-round convenience, offering water enthusiasts ideal swimming conditions no matter the weather. Created for enjoyment, an unfortunate number of indoor pool projects ultimately lead to complications, however – many from simple ignorance. Here’s how you can ensure a perfect poolside experience…

6 Things You Should Know Before Building an Indoor Pool
  1. Be Careful About Cutting Corners in Construction. 
    Adding an indoor pool is a large investment, and it is integral to hire an experienced contractor to protect its value and lifespan. Here is not the place to cut corners. Look to architects and commercial HVAC mechanical contractors with a great deal of indoor pool room design experience for seamless, safe integration. Here it’s the seemingly little things skilled professionals know – like sloping the deck toward the pool to keep water from walls and the right materials to guard against moisture damage – that make a big difference and can save you a mountain of heartache later.
  2. Avoid Impossible Situations.
    Don’t skimp on the size of your equipment room in the efforts of saving square footage. Such shortsighted decisions could create impossible working conditions later when equipment requires repair or replacement.
  3. Don’t Overlook Dehumidification Needs.
    Appropriate heating and ventilation are essential to maintaining optimal humidity levels poolside. Unlike outdoor pools, indoor pools need a complete and carefully constructed dehumidification system, such as a Desert Aire, Semco, PoolPak and Dectron pool dehumidifier, to protect the indoor pool structure and environment against mildew, mold and rot. These natural consequences of evaporation and condensation can be held in-check with proper humidity levels in the 50-60% range, as well as by avoiding the forcing of air across the pool surface (which speeds evaporation), and maintaining even air distribution over outside walls to prevent condensation.  
  4. Add Protection with Pool Covers and Proper Drainage
    A small investment in an pool cover can help reduce evaporation and humidity by as much as 50%, lowering the cost of running commercial dehumidification systems. And in addition to proper sloping, low-profile strip drains can guard against standing water and structural damage.
  5. Make Sure Ventilation is Sufficient for Air Quality & Safety
    Any pool treated with chlorine will emit odors, but these will be more pronounced indoor pools. Be sure to talk to your pool HVAC and dehumidification contractor about solutions that can safeguard against chemical smells, such as ozonators and purifiers.
  6. Look at the Long-Term.
    Keep in mind when selecting personnel and products to guide you on your pool quest, a small investment now - be it in climate control, pool cover, drainage, or a trusted commercial HVAC service company – could save you a significant amount in monthly energy costs and potential repair bills later.

Ready to Take the Plunge on Your Indoor Pool Endeavor?
Get the knowledgeable help you need from the best commercial HVAC company New Jersey. H&H Commercial Services has your residential and commercial indoor pool dehumidification needs covered, with over three decades of experience. Contact H&H Commercial Services to learn more about how we can help you meet your indoor pool climate control needs today.

Thursday, 26 October 2017

The Best Pool Dehumidification Solutions Available Today!

Your choice in indoor pool dehumidification systems is an important one, with far reaching ramifications. Preventing mold proliferation, safeguarding your pool room’s structure and contents against corrosion and deterioration, and protecting you from high energy costs and system failure, matching the right dehumidifier to your precise application is key to ensuring longevity and satisfaction with the performance of each unique system. With so many on the market, however, the selection process can be quite confusing. How can you find the right indoor pool dehumidification system for your pool room?

Look to Industry Leaders in Pool Dehumidification  
  • Dectron Dehumidification Units
    A global provider of custom and semi-custom systems, Dectron specializes in  dehumidification, indoor air quality (IAQ), and precision HVAC systems across a range of industries, from recreation and hospitality to medical and industrial applications. Offering some of the best humidity control solutions on the market today, Dectron solutions include…

  1. Dectron Dry-O-Tron: This mechanical system controls humidity, re-harnessing energy by-products to maintain comfort.
  2. Dectron Eco-Tron: This custom integrated system offers not only air conditioning and dehumidification, but integrates energy recovery techniques and serves as a makeup air system as well.
  3. Dectron Circul-Aire: This single-source system can meet ASHRAE standards in multiple arenas: Comfort, humidity, air purification and ventilation.
  4. ThemoPlus Air: Offering unique design solutions for custom and specialty applications.
  • PoolPak Dehumidification UnitsPoolPak also offers an amazing line of indoor pool dehumidification systems designed for high performance, efficiency, and extended lifespan. Preferred by architects and engineers for value and rapid return on investment, PoolPak systems are found in pool facilities, schools, and healthcare facilities worldwide. PoolPak solutions include…
  1. Mechanical Refrigeration & Outside Air Systems: These systems both recycle heat captured in the dehumidification process for heating air/water, and capture heat from the outside system’s exhaust stream.
  2. Small Application Systems: With a moisture removal capacity of approximately 60lb/hour, these systems, engineered for less expansive applications, are available in a variety of sizes/configurations.
  3. Customizable Systems: PoolPak’s MPK and SWHP and VHR systems offer custom-tailored solutions from dehumidification and heating to exhaust and purge control.
  4. High-Capacity, High-Efficiency Systems: Choose from PoolPak’s HCDV and HCDH Series for optimal heat recycling and reduced energy costs.  
Protect Your Investment with Professional Sizing & Installation
When selecting your system, be sure to seek out the expertise of commercial HVAC contractors you can trust who will take the time to determine your exact dehumidification, heating, indoor air quality and ventilation needs. Proper sizing and installation safeguards comfort, performance, air quality, energy savings, and most importantly the warranty and longevity of your indoor pool dehumidification system investment.

For over 30 years, H&H Commercial Services has been providing superior HVAC, dehumidification, and indoor air quality solutions to residential and commercial customers in Philadelphia City and surrounding area from industry leading manufacturers like Dectron and PoolPak. Take advantage of our years of expertise, and let us help you find an indoor pool dehumidification system that’s the perfect fit for your space. Contact the comfort control experts at H&H Commercial Services today.

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Tuesday, 24 October 2017

Maintaining The Right Climate In Your Gym – What You Need To Know

When maintaining the temperature in a gym or other fitness establishment, a few degrees of adjustment to the thermostat of your commercial HVAC system can make a world of difference. Temperature control is essential not only to a safe workout, but an effective one as well. Is your thermostat in the zone?

Warm Up or Cool Down? 
OSHA identifies safe workplace temperatures as between 68 and 76 degrees Fahrenheit, and humidity levels as best between 20 to 60% relative humidity. However the gym is not a typical workplace. The ideal temperature for your gym should vary by setting and activity. Even client age plays a role, with pregnant women and children requiring cooler environments due to their propensity to overheat, and the elderly preferring far warmer gym environments due to their sensitivity to cold.
What’s the Big Deal?
Despite common misperceptions, the gym is not the place to encourage clients to ‘sweat it out’ under the guise of a greener planet. Extreme temperatures – both hot and cold – can have a negative effect on member workouts. Cold environments can result in muscle injury. Overwarm environments, cause patrons to suffer performance lags that can reduce workout effectiveness by 50%, resulting in dramatic declines in fitness levels or lack of progression over time. Worse, muscle injuries from excessive cold or health risks from overheating such as dehydration, heat stroke, and cardiovascular issues could put you at risk of costly lawsuits and lost clientele.

How Can You Find the Right Gym Temperature?To find the perfect temperature, look to industry tips and clientele age. Though in general the American College of Sports Medicine advises temperatures in the 68 to 72 degree Fahrenheit range alongside proper humidity and air circulation, optimal temperatures are more activity-specific. Thus, the International Fitness Association (IFA) has developed guidelines based not only on OSHA and IFA guidelines, but activity:

  • Aerobics & Cardio
    For aerobics cardio classes, a temperature of no higher than 68 degrees is recommended.
  • Weight Training
    Weight training, like aerobics, is recommended in the temperature range of 65-68 degrees by the IFA as well. However, "Iron Man," a sports magazine geared to body builders, suggests a room temperature at approximately 70 degrees to allow comfort while training but keep muscles warm at-rest.
  • Yoga
    Yoga temperatures are generally warmer, but no higher than 80 degrees.
  • Water Activities
    Pool areas are typically kept in the 70-80 degree range. ASHRAE, however, recommends temperatures of 2 to 4 degrees above water temperature for ideal pool room humidity control, as improperly maintained air temperature, water temperature and humidity can quickly overwhelm HVAC equipment.

Don’t Breeze By Humidity & Air Movement
Humidity and air movement are also integral to clientele perceptions of temperature. High humidity, even at optimal temperatures, can make gym spaces feel stuffy and hot. Proper circulation with fans can likewise increase comfort and facilitate the evaporation of sweat, keeping clients comfortable and cool.

HVAC system feeling the burn? Need commercial air conditioning repair? Contact the    and air conditioning repair experts at H&H Commercial Services and get your system back in shape today.

Wednesday, 27 September 2017

What Are HVAC Rooftop Units, And How Do They Work?

Roof top units, or RTUs, are a common fixture of commercial buildings. Nearly half of all commercial buildings across the nation take advantage of RTU technology, including office buildings, manufacturing facilities, hospitals, retail venues, and schools. Providing heating, cooling, and ventilation, RTUs have been servicing the comfort needs of large buildings since the early days of electro-mechanical air conditioning in the early 1900s.
Why Rooftop HVAC Systems?During the early 20th century when these systems were introduced, most large businesses were located in crowded urban areas, where no room existed between buildings for the large outdoor units necessary to provide adequate cooling. To get around this issue, manufacturers designed systems that could access ventilation and operate from the roof.
Industrial air conditioning
Plentiful Benefits
Newer, albeit more efficient versions of RTUs are still in use today, remaining at the top of building where they take up less space, require less maintenance in the form of weed, grass and debris removal, and keep the grounds more attractive. This location also makes the systems less prone to theft and tampering, and allows for easier commercial HVAC maintenance without interfering with daily work routines. Because there are few space and design concerns with RTUs, expanding the heating, cooling, and ventilation capacity of these systems is also much easier due to their out-of-sight, limited use locale.
How Do Rooftop HVAC Systems Work?Far more flexible in design today than they were just a generation prior, RTUs work a little differently than the standard home HVAC system. When cooling is necessary, RTUs draw warm air from within the building, cooling it with the help of a cooling coil, and redistribute it to the space below. When the outside air is cooler than the air inside, however, RTUs have the capability to save energy, taking advantage of outdoor conditions with the help of a specialized control system called an economizer. The economizer system opens up an air damper when outdoor air is cooler, reducing the need for the system to cool indoor air mechanically, and taking a 15-80% bite out of energy use depending on outside climate conditions. In addition, if a building requires added ventilation, outside air is always available. When paired with an occupancy or CO2 sensor, the system can bring in necessary fresh air on demand, responding to ventilation changes on an as-needed basis.
How Efficient are Rooftop Units?
While older RTUs are notoriously inefficient, newer RTU tech and retrofits offer far more reliable and efficient operation. With heating and cooling accounting for over 25% of the average commercial building’s energy use, such improvements in efficiency have a lot to offer in helping businesses cut energy costs, reduce their carbon footprint, and meet regulatory standards, not to mention in boosting productivity and protecting workers against temperature extremes.
Looking for opportunities to improve the efficiency of your rooftop unit? Contact the experts at H&H Commercial Services to schedule a system evaluation and learn more about opportunities for savings today.

What are Water Cooled Chiller Systems

An alternative to air-cooled systems and rooftop units, water cooled chiller systems are typically used for industrial and commercial applications for their significant energy savings benefits, and to aid companies in their attempts in reducing carbon emissions.

How Do They Differ From Air-Cooled Systems?
Though water and air cooled systems share many components in common – evaporator, condenser, compressor, expansion valve - unlike air-cooled systems, which disperse heat via an air-cooled condenser coil, water cooled chiller systems use water to absorb heat, dispersing it into the air through a cooling tower. It is this component that gives water cooled systems an efficiency advantage over air-cooled and rooftop systems, from 10-100% depending on the setup.

Why Are They So Much More Efficient?
Water is more energy dense than air, providing more efficient cooling than traditional air-cooled options. However these systems come with one main drawback: A higher equipment cost. They are typically used in locations larger than 200,000 square feet, where cooling needs will quickly offset the added cost of equipment. Other applications include industrial use, such as the cooling of plastics and metals, and the cooling of small and large multi-storied structures like universities, hospitals, and large office buildings, as the systems don’t require ducts to push air through multiple stories. With system sizes ranging from 20 tons to several thousand, applications are wide and varied.

Choosing a Water cooled System
Operation and function of water cooled systems will vary based on your choice of system type. Chillers are typically chosen by application and cooling capacity required in relation to the trade-off between initial investment and operating costs. Make sure to consult with a Commercial HVAC Mechanical Contractor before deciding on the System. Styles include:

Centrifugal Compressors
The most efficient of water cooled system choices, this system type includes magnetic-bearing compressors, which generate less noise and vibration than other styles and offer significantly improved part-load efficiencies in certain applications compared to screw and scroll style compressors. Centrifugal compressors are typically used in applications requiring 300 tons or more of cooling capacity, though some newer models offer variable-frequency operation.

Screw Compressors
Dominating the upper end of the capacity range, screw-style compressors are typically used for applications requiring less than 300 tons of cooling capacity.

Scroll Compressors
Scroll compressor are common in applications requiring less than 300 tons of cooling capacity.

A Difficult Decision
Due to the complexities of each application, in-depth analysis is essential to maximize efficiency opportunities with water cooled chiller systems. Various equipment options, load factors, and operating strategies must be considered by professionals in-the-know to ensure a solid investment and lasting performance, such as chiller efficiency, the efficiency of pumps and fans, full/partial load operation, variable frequency versus constant speed compressors, interaction between components, and operating techniques.

Considering an upgrade or experiencing issues with your existing water cooled system? The professionals at H&H Commercial have skills beyond the typical residential or business installation. Contact us to learn more about our trusted commercial services today.

Wednesday, 6 September 2017

How Does An Industrial Chiller System Work?

Upgrading the air-conditioning unit in your commercial building to an Industrial Chiller system is an excellent way to both make your building more green while reducing your energy expenses. Chillers work extremely efficiently in creating a comfortable environment for employees and visitors, as well as doing a good job cooling products, computer systems or machinery as well.  

What are Industrial Chillers?

Water cooled chillers and air cooled chillers are two types of refrigeration systems that can both cool and dehumidify air in industrial or commercial buildings. Vapor-Compression Chillers are a third technology. Chilled water can be used both for space cooling and also for processing. Chillers can use a variety of types of compression systems and fluids but have the same four basic components:

  • Evaporator
  • Condenser
  • Compressor
  • Expansion Valve



How an Industrial Chiller System Works

Each type of chiller works using a similar cycle:
  1. Liquid refrigerant starts in the evaporator and goes over an evaporator tube, absorbing the heat and evaporating into a gas.
  2. The compressor draws the gas out of the evaporator and moves it into the condenser which raises the temperature and pressure.
  3. The condenser tubes absorb the heat in the vapor.
  4. Then the pressurized liquid refrigerant goes through the expansion valve which causes the temperature and pressure to reduce.
  5. Finally, the liquid refrigerant again flows across the chilled evaporator tube, beginning the cycle again.


Which Chiller is Best?

No one chiller is best in all situations. Each building is unique and to determine the best type of industrial chiller for your particular building, you need to consult a company which has extensive experience in a variety of different types of buildings. They can determine what your needs are and which sort of chiller would meet those needs most effectively.


Industrial Chiller Maintenance

In order to function efficiently, chillers need to have expert inspection and maintenance by an experienced chiller repair contractor. Basic checks include:
  • Inspecting the chiller for refrigerant leaks.
  • Making sure compressor pressures are in the correct range.
  • Checking motors, starters, relays, and contactors.
  • Examining unloader operations and hot gas.
  • Using superheat and subcooling temperature readings and discharge line readings to check for maximum efficiency.
With well over 30 years of experience in providing top quality industrial chiller systems in the Philadelphia City area, H&H can handle your chiller needs, no matter how complicated. If you are considering replacing your current system, our HVAC system experts are trained to assess your needs and customize a solution which takes into account your budget and your particular industrial cooling situation. Furthermore, if you need repair of your current chiller system, H&H repair services have the expertise to tackle any repair job and the connections to top manufacturers to make sure we get the parts quickly so that your job is done in a timely manner.