Troubleshooting HVAC systems on your own

Posted on 19 February 2018 (0)

What do you do if your HVAC system suddenly breaks down at a totally awkward time- for example during a holiday period when most maintenance staff are unavailable? You definitely cannot force them to leave their families and vacations and come running to fix your system. Immediately getting a new HVAC system is definitely a no-brainer considering both the huge cost and the amount of time involved. Your only saving grace in a situation like this is whatever slight knowledge about HVAC systems you have acquired in the past. In this post, we have put together a couple of quick troubleshooting steps you can take to at least have an idea of what exactly is wrong with an HVAC system
Check for power
On many occasions, the problem is that electricity is not being supplied to the equipment. You can confirm this by checking that power sources on the control panel have not been tripped off. Be sure to also check if fuses are not burnt. Electricity bearing cables should be tested for continuity- There might be a kink somewhere in the connection. It is important to take safety precautions here and ensure that main electricity supply to the system is shut off before any attempt is made to check open wires. This is to prevent electric shock and electrocution.
After completing the power check and it has been confirmed that electricity is being supplied to the system. You may then proceed to check the individual components on the HVAC system
Heat
For the heating aspect, an inspection of the furnace will be necessary. Crank up the temperature control to about 10 degrees higher than the average settings. You can then check whether the heat is being supplied at the outlet (Scald Alert! remember not to use your naked palm or the back of your hand to test for heat). If there’s no noticeable heat, you may try resetting the furnace by hitting the reset button on the control panel. Try turning on the system again and if the “no heat” situation persists, then you’ll have to wait for a repair technician. At least you’ve been able to isolate the fault.
Air Conditioning
Turn on the air conditioning unit as usual and similar to the above, set it to a temperature 10 degrees below the average temperature settings. If there’s no noticeable flow of cold air after a minute, you should also heat the reset button. A common problem with air conditioners is the accumulation of dust on the coils. Try cleaning the coils after turning off the AC, replace them and turn it on again. This will help to pinpoint the exact source of the fault.
Ventilators
Ventilating systems often have fans for the circulation of air and also to supplement the action of either the furnace or the air conditioner. The first component to check should be the fan. Also, dirty filters may limit the ventilation aspect of an HVAC system. Air filters should be kept clean as much as possible.  More Info

Common HVAC installation mistakes to avoid

Posted on 25 September 2017 (0)

Your HVAC unit is a complex equipment that has many components. If you’re looking for a new HVAC system to install, you are probably doing a search for the equipment that will suit your needs and the highly rated brand in the industry. Once you get your new HVAC system, you need to get the system installed and it should be done right. When you hire an inexperienced HVAC contractor or install the unit yourself, there are mistakes that may arise. Although some mistakes may not be disastrous, they cause indoor discomfort and increase energy bills which is contrary to what a good HVAC unit should do. Below are common HVAC installation mistakes that you should avoid.

Choosing the wrong size of furnace

When choosing a furnace, the bigger size is not always the solution. An oversized unit can result in more problems you didn’t expect. You should choose the recommended size by your installer only if they do the necessary calculations to determine the suitable size of furnace for your home. Most contractors recommend people to choose a furnace of the same size as the preexisting one. The contractor should be able to do the professional calculations and determine the accurate size of furnace suited for accurate HVAC unit installation.

Faulty duct installation technique

Another costly mistake is failing to seal the ducts correctly. When the ducts are properly sealed, there are minimal chances of air escaping from the duct into the other areas like the attic. Mastic take is the best choice of tape to use in sealing the ducts. Some contractors use cheap materials and poor workmanship in installing the duct, leaving gaps and cracks which make the duct to start leaking after a short while. Air leakage through the duct may not only cause inefficiency but also raise your energy bills.

Installing with improper charge level

The heating and cooling system of an air conditioning spring hill unit needs the right charge level for it to work efficiently. If the charge level is not set as required, your system may not only be inefficient but also unreliable. Ensure the charge level is according to the manufacturer’s specification during the installation time.

Poorly designed drain systems

Today’s air conditioners and furnaces can cause the accumulation of much wastewater. The water requires proper drainage for it to be safely moved out of the system. If the drained is not done right, you can experience much damage on your building as a result of water leaks. During the cold season, the water backing up in the pipes may freeze and cause your system to fail. Moreover, the frequent accumulation of water can cause air quality problems and mold in your home.