With 2020 driving unprecedented demands – at work and home – you may not yet have started to prepare for the cold.
There’s still time! Here are a few tips and recommendations from Trane® building professionals that can help you save energy and lower your utility bills during the colder months ahead.
1. Understand building changes when you prepare for the cold
As you begin cold weather preparation, understand the way your building is used — and the hours it is occupied — may change anytime winter arrives but especially this year, depending upon whether tenants are working from home or heading into the office. Review building and system data to monitor occupancy rates and adjust equipment and system setpoints to support the current usage needs. Use automatic scheduling to reduce the building’s energy consumption during the holidays, when your building will likely be unoccupied.
2. Avoid problems during cold weather preparation
When you prepare for the cold, proper maintenance is critical — an equipment outage is the last thing you want in the middle of a snowstorm or if your state requires additional lockdowns. Check HVAC systems and equipment to determine if they are working correctly. Change filters and look for cracks in the heat exchanger to optimize system performance. You should also check the boiler and stroking valves to confirm the outside air intakes are on the lowest setting.
3. Use your economizer wisely
In many parts of the country, colder months bring dry weather with low humidity, which is perfect for taking advantage of an economizer. When you prepare for the cold, consider utilizing an air-side economizer. This uses the cooler outside air to reduce the indoor temperature, which is more energy-efficient than cooling the recirculated indoor air. Many buildings have break-even points — the temperature at which the building starts using mechanical cooling — of 60 degrees Fahrenheit or less. In many cases, the building can be pre-cooled with outside air to run a little cooler in the mornings, so the occupied setpoint can slowly rise during the day — without compromising occupant comfort.
4. Conduct a building walk-through
One easy way to spot energy savings and improve efficiency during cold weather preparation is to conduct a walk-through. A visual inspection can help you uncover deficiencies that are often easily fixed. For example, keep an eye out for space heaters being used in certain parts of your building. Consider the reasons why these zones are running cooler than others and how this can be addressed.
Check the building envelope during your inspection process. Verify that all exterior doors and windows are closing and sealing properly, and roof drains and filters are clear from debris.
5. Review your plans
Equipment breakdowns and weather-related outages can happen any time of year, so as you begin to prepare for the cold, it’s important to have a contingency plan in place that addresses your needs. Your contingency plan should outline the processes and steps you will take to keep your building running in the event of an outage or emergency. This year, it also should address how you will keep it running should an unexpected lockdown occur in your area.
6. Know your utility rates when you prepare for the cold
Utility demand charges are typically more severe in the summer months, but you still have opportunities to reduce or shift demand during the colder months to help lower costs but still prepare for the cold.
Knowing your utility billing dates is important as the seasons change. For example, if your billing cycle ends on Dec.15, and Dec.16 and 17 prove to be unseasonably warm days, try to find ways to cool your building other than running the chiller for that brief window — which can cause an expensive spike in demand charges for the entire month.
Don’t let winter sneak up on you. Cold weather preparation starts now. Now is the time to make sure your building is prepared for the colder, and Trane is your partner in this effort. Trane building professionals are ready to help you determine your winter readiness and provide additional recommendations for improvement.