In today’s networked environment, server rooms are one of the indispensable parts of modern businesses. Even SMEs with more than a few workstations typically need a server, whether housed in a room or a closet.
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And one thing that all servers generate is heat – lots and lots of it. These critical but fragile network equipment need lots of cooling and heat management in order to function efficiently and reliably. In this guide, we tackle everything you need to know about server room cooling, to ensure seamless operation of your office workstations, and by extension, your business.
A server room is a dedicated space designed to house computer servers and networking equipment. These rooms play a crucial role in IT infrastructure, since they contain the servers that are the backbone of the business or company’s network operations.
Server rooms vary in size – small businesses may make do with a dedicated server or two housed in a closet, but larger businesses and commercial operations typically require a dedicated server room with industrial-grade protection. Some of the largest server rooms in the world, more formally known as data centers, are actually housed in impregnable bunker-like shelters to protect them from temperature extremes and humidity, with some even being housed underwater for maximum cooling!
One thing that all server rooms have in common is that they must be optimized for temperature, humidity, and airflow control to maintain peak server performance and prevent hardware failures. In other words: they must be constantly air conditioned.
Maintaining proper temperature, humidity and ventilation is critical to ensuring the longevity and efficiency of server equipment. The American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE) provides guidelines for data centers and server rooms, based on ASHRAE TC 9.9, “Equipment Thermal Guidelines
for Data Processing Environments”.
These standards include:
????️ Temperature Range
ASHRAE recommends that server rooms operate between 64.4°F and 80.6°F (18°C to 27°C).
❄️Optimal Temperature
The ideal temperature for most server rooms is around 72°F to 75°F (22°C to 24°C).
???? Humidity Levels
ASHRAE suggests maintaining relative humidity between 40% and 60% to prevent electrostatic discharge (low humidity) and condensation (high humidity).
♨️ Airflow and Ventilation:
Proper airflow must be maintained to prevent hot spots, and cold aisle/hot aisle configurations are recommended.
While ASHRAE governs the temperature and humidity control for servers, there are other regulatory and industry standards for server rooms:
Energy efficiency standards: Some regions also have their own local energy regulations that affect cooling systems, such as SEER (Seasonal Energy Efficiency Ratio) ratings.
There are various cooling methods to maintain the optimal temperature and humidity levels in a server room:
CRAC (Computer Room Air Conditioning) Units: These function like standard air conditioners but with more precision cooling capabilities. They are also known as “room-based cooling”.
CRAH (Computer Room Air Handling) Units: These use chilled water systems to cool the air and are more energy-efficient for larger server rooms.
Both types must comply with Department of Energy (DOE) energy conservation standards 10 CFR 431.92.
These cooling units are placed between server racks to provide targeted cooling. They are designed for high-density server configurations.
According to the DOE, they are more efficient than room-based cooling since airflow paths are shorter, increasing efficiency and reducing power required.
Uses liquid-cooled heat exchangers to remove excess heat directly from servers. They are more efficient for high-performance computing environments.
The National Renewal Energy Laboratory states that liquid cooling is more efficient because the heat capacity of liquids is orders of magnitude greater than air-based cooling.
A layout that positions server racks to direct hot air away from cold intake areas. This setup helps improve cooling efficiency and reduces energy costs by 10-35% according to the DOE.
Proper ventilation ensures hot air is removed efficiently. Additional exhaust fans may be used for small server rooms with limited airflow.
For smaller businesses with only a single server, server closets are relatively simpler to cool. Heat dissipation can be managed using a portable AC dedicated for the purpose, such as these examples:
Kwikool KIB Iceberg Series 60,000 BTU Portable Separated Air Cooling System
KwiKool’s Iceberg Series line of portable coolers is an ideal solution for server and IDF rooms. It offers a separated air system which helps to recirculate cooled air while expelling hot air.
This 60,000 BTU (5 ton) model uses single phase, 230 volt electricity and is 27.325″w x 51″d x 53″h, with a recommended circuit breaker size of 50 amps. It is powerful enough to cool effectively either as a primary or backup air conditioning source. The condenser on the KIB utilizes THD, KwiKool’s exclusive Twin Hyperdrive Technology which produces a high volume of air without belts and eliminates all of the maintenance associated with belts.
Standard features include three fan speeds, a 5-gallon condensate tank with overflow float switch for manual emptying as well as an internal high lift condensate pump for direct drain option, auto-speed which automatically sets the fan speed based on the heat load demand, filter dryer for moisture protection. The Iceberg Series also includes dual top ducting and Kwikool’s Exclusive I/O Integral Condenser that allows for a separate exhaust outlet and cooling source inlet. With the unique dual system, the cold air created is then pushed out into the server room and recirculated within the room, not removed.
Daikin FTXM24WVJU9 / RXM24WVJU9 BTU Class 22.0 SEER2 Wall Mounted Atmosphera Series Single Zone Mini Split System
The streamlined, wall-mounted mini split delivers 21,600 BTUs cooling and 24,000 BTUs heating. With 12.0 EER2, 22.0 SEER2, and 10.0 HSPF2 ratings, this system ensures year-round server room cooling and compliance with DOE regulations. It uses the new R32 refrigerant.
The inverter technology in the Daikin Atmosphera system optimizes compressor speed, reducing energy consumption and temperature fluctuations. This ensures consistent cooling for your server with minimal power fluctuations. Cooling capabilities can be further extended to -4°F with a wind baffle and dipswitch adjustments.
The system uses hybrid cooling that efficiently reduces humidity without overcooling. This maintains dehumidification for the server room after reaching the target temperature. It also boasts built-in WiFi, allowing you to control your system remotely with ease.
1. Use Temperature and Humidity Sensors
Real-time monitoring ensures quick response to temperature fluctuations.
2. Redundant Cooling Systems
Having backup cooling prevents downtime in case of failures.
3. Seal Unused Rack Spaces
This stops hot air from recirculating into cooler areas of the room.
4. Regular Maintenance
Ensure filters, ducts, and cooling units operate at peak efficiency through periodic cleaning, or replacement if needed.
5. Consider Modular Data Centers
These pre-designed modules come with their own cooling systems, and are scalable and efficient for growing IT needs.
Proper server room cooling is essential to prevent overheating, equipment damage, and data loss. By following ASHRAE standards, utilizing efficient cooling solutions, and ensuring compliance with regulations, businesses can maintain a reliable and efficient IT infrastructure. Whether opting for traditional air conditioning, liquid cooling, or advanced airflow management, investing in the right cooling strategy will prolong the lifespan of servers and improve overall performance.
Installing a new air conditioner unit is a great choice, but can seem overwhelming with so many models available from manufacturers today.
With technical features, sizes, and energy efficiency ratings, it can be confusing to first-time buyers. It’s important to understand what you’re getting for your money and how to choose an air conditioner that fits both your home and budget, while also impacting your energy bills.
As air conditioning experts with over 20 years of experience, our goal is to help you through the decision-making process. By the end of this guide, you’ll understand the different types of air conditioners and have a grasp of efficiency ratings, air conditioning features, and other options available.
First, let’s get right into our choices for the best air conditioners available in , and the best options available for those on a budget.
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In our opinion, the Lennox XC25 and the Carrier Infinity 21 are two of the best options out there in , giving you top-of-the-line comfort and energy efficiency. Let’s take a look at each one.
The Lennox XC25 Air Conditioner comes with an industry-leading SEER (Seasonal Energy Efficiency Ratio) rating of up to 26, making it one of the most energy-efficient air conditioners on the market. It’s also super quiet – about 50% quieter than most air conditioners.
The XC25 features variable-stage operation, meaning it chooses the most efficient speed to keep the temperature you’ve set, maintaining your desired temperature within half a degree. It’s one of the best at humidity removal, keeping your home’s air feeling light and cool.
The XC25 is also compatible with Lennox’s iComfort® wifi smart thermostat, allowing you to control your home’s climate from anywhere using your smartphone.
The Carrier Infinity 21 Air Conditioner offers unparalleled performance in home comfort. Coming with a SEER rating of up to 21, it’s right up there in efficiency, meaning smaller utility bills.
This model has a variable-speed compressor to fine-tune performance as outside conditions change, providing consistent and precise temperature control. Equipped with the Silencer System II, it operates at remarkably low noise levels, without the annoying hum you’ve heard with other air conditioners.
It also integrates with the Infinity System Control, enabling you to manage your home’s climate remotely with your smartphone. Also coming with advanced humidity control and air purification means the air you breathe is as comfortable as it is clean.
If you’re on a tighter budget but still looking for a great air conditioner that doesn’t compromise on comfort, we’ve found the Lennox 13ACX and the Carrier Infinity 16 to both be excellent options.
The Lennox 13ACX Air Conditioner delivers reliable and efficient cooling at an economical price. A 13 SEER rating isn’t at the high end, but it still helps reduce your energy bills compared to traditional AC units without compromising performance.
A precision-balanced fan provides quieter operation. The scroll compressor, which pumps refrigerant, is designed to withstand the warmest, stickiest summer months.
Also built with a steel PermaGuard™ cabinet that withstands the elements, the 13ACX is an affordable, efficient air conditioner built to last.
The Carrier Infinity 16 Air Conditioner is one step above with a SEER rating of up to 16. This model comes with standard comfort features to help keep you cool in summer. It’s still fairly quiet with the Silencer System II a compressor sound blanket.
The Infinity system automatically adjusts to the humidity in your home to keep you comfortable. This model is best for homeowners in cooler climates with less humid, milder summers, and is designed to give you simple, efficient, and affordable cooling.
Ottawa summertime temperatures are often blazing hot. As a result, air conditioning costs may account for as much as 50 percent of your electrical use in the summer months. Fortunately, energy-efficient central air conditioners will help you save money on your utility bills. At the same time, you’ll be doing your part to keep our planet healthier.
If you haven’t gone shopping for new central air conditioners in a while, you are about to be pleasantly surprised. Did you know that the major air conditioner companies are making their products substantially more energy-efficient than they did a decade or more ago? According to the US Department of Energy, modern AC systems are 20-40 percent higher in efficiency than those manufactured just a decade previously.
However, there is still quite a range of energy efficiency within the different types of air conditioners. To be sure you’re getting the most energy-efficient air conditioner possible, there are 2 numbers to look at:
Natural Resources Canada recommends regular cleaning and annual professional maintenance of the system to optimize your new central air conditioner’s energy efficiency. Installation of a programmable thermostat is also useful.
R22 Refrigerant (also known as R22 freon and HCFC-22 freon) is an outdated, environmentally harmful chemical that was used in older air conditioner units. R22 contributes to the depletion of the ozone layer, which negatively affects our climate.
As of January 1, , producing and importing R22 is banned in Canada. Some manufacturers have tried to find a suitable substitute that can be used for existing R22 units, but it’s only considered an interim solution until an upgrade can be made.
If you have an older central air conditioner, you’ll want to check and make sure it isn’t using R22. If so, installing a brand new replacement unit is really the only way to stop using this harmful chemical.
Before installing a central air conditioning system, you’ll need ductwork to carry the cooled air to all the rooms of your house. If you are buying a replacement air conditioner or if you currently have a forced-air furnace, that means you already have ductwork.
If your home does not contain ductwork, a retrofit is possible. Putting in compact high-pressure ducts will simplify the procedure and take up the minimum of space in your attic, walls, and underfloor area.
An alternative is to install ductless air conditioners, which have several advantages, including space savings, more straightforward installation, and high energy efficiency.
If you have a smaller home, or don’t need to worry about cooling down your entire house (perhaps you only want a cooler bedroom or kitchen since you spend most of your time in those places, for example), then you can also consider a portable air conditioner or a window air conditioner.
While either of these options will be less expensive than a central air conditioner system, they obviously won’t be able to have the same cooling output.
Heat pumps are highly energy-efficient appliances that will supply you with both cooling and heating. A heat pump works by moving heat energy outside your house in summer and inside in winter.
A heat pump will cost you more initially than a conventional central air conditioner and requires complex installation. When buying a heat pump for a Canadian home, it’s best to choose one with a backup source of heat. On the other hand, in addition to their energy savings, high-efficiency heat pumps offer several other significant advantages:
Looking for a heat pump rebate? You may want to check out the Canada Greener Homes Grant. There are two parts to this grant:
Learn more so you can decide whether an air conditioner or a heat pump is right for your Ottawa home.
Central air conditioners are sized in terms of BTUs. Although the formula 20 BTU (British Thermal Units) per square foot of floor space can be used as a rough guide, expert calculation of your home’s BTU requirements is essential to size your air conditioner accurately. Our HVAC professionals will consider factors such as:
A correctly sized air conditioner system, neither too small nor overly large, will do the most efficient job of cooling and dehumidifying your home.
There’s a wide range of prices for all the new, high-efficiency air conditioning systems available on the market. When you’re getting a quote from a reliable air conditioner installer, be sure to ask them questions that will help you narrow down the scope of what you’ll need for your entire house to have adequate and precise comfort
A central air conditioning system or a ductless air conditioner can cost you anywhere from $3,000-$6,000, while a portable air conditioner can be as little as $200-$700.
While it might seem daunting to potentially spend thousands of dollars on a new central air conditioner, there are plenty of good reasons to invest.
Not only will a central air conditioner have the ability to cool your entire house, it can do so at greater cost-effectiveness and energy efficiency than a ductless air conditioner (and even more so than a portable air conditioner or window unit).
You can control the temperature inside your home the same way you do in the winter: with your thermostat. No need to fuss with multiple portable air conditioning units spaced throughout your house.
You’ll also get greater indoor air quality, since the cool air will travel through the furnace filter and any air purification systems you’ve set up.
Overall, central air conditioners have a nice long lifespan, and will last you for a over decade or more with proper maintenance.
The most trusted air conditioning brands have earned their reputations due to years of excellent performance and service. At Ottawa Home Services, we work with the following top-tier brands:
Carrier, the firm which invented the very first modern air conditioner in , continues to deliver superlative, extremely reliable products. Carrier offers central air conditioning for every budget, with SEER ratings ranging from 13 to 26.
Comfortmaker is made by Carrier, who invented the very first modern air conditioner in , continues to deliver superlative, extremely reliable products. Comfortmaker offers central air conditioning for every budget, with SEER ratings ranging from 13 to 26.
Lennox is another veteran AC manufacturer. The company is well-known for their precise temperature control. Lennox central air conditioners are SEER-rated between 15.5 and 26. Many models are Energy-Star certified.
Midea may be a newer name in Canada, but globally it’s one of the largest air conditioner manufacturers. Midea central AC systems offer a strong balance of affordability, quiet operation, and energy efficiency. With SEER ratings that compete well in their class, Midea is becoming a trusted choice for Ottawa homeowners who want reliable cooling at a great value.
Perhaps you’re not quite ready to commit to buying a central air conditioning system at the moment. You might be planning to move within the next year or two — or you have other financial priorities.
Did you know that renting an air conditioner from Ottawa Home Services is an option? Choose one of our rental units and enjoy high-quality home comfort at an affordable monthly rate. Your rental agreement will also include free AC inspection and maintenance every other year.
Buying the best central air conditioning for your home is an important beginning. To make sure that your investment will continue to serve you well, protect your new appliance with the proper air conditioning maintenance and service plan.
What should you look for? At Ottawa Home Services, our AC protection plan includes annual:
It also comprises superior customer service throughout the year (even during Ottawa heatwaves!), namely:
Talk to us about your central air conditioner needs today. We have a team of Barrhaven air conditioning experts ready to assist you in choosing from the best central air conditioners for your household. You can rely on OHS for Kanata air conditioner sales, installation, and service.
Contact us to discuss your requirements of Financial sector cooling solutions. Our experienced sales team can help you identify the options that best suit your needs.