Data Logging Thermostats | HVAC Control 5/5 (1)

Data Logging Thermostats Data Logging Thermostats – High Performance HVAC Air Conditioning & Heating Thermostats 1) Question: Is there a thermostat for a nursing home with a print out for temperature verification? The answer….. Yes data logger thermostats can be found here. But read on about this subject. Data Logging Thermostats and Human Comfort This … Read more…

Successful Thermostat Installation Advice | HVAC Installation Advice 5/5 (1)

Successful Thermostat Installation Advice | HVAC Installation Advice Successful Thermostat Installation Advice – High Performance HVAC wants you to be successful at the installation of your new thermostat so we ask that you read the pages here at High Performance HVAC carefully before you attempt to install your new thermostat. If necessary study the installation guides before … Read more…

Duct Work and High Ceilings | HVAC Duct Work Systems 5/5 (1)

Duct Work and High Ceilings

Duct Work and High Ceilings | HVAC Duct Work Systems

Duct Work and High Ceilings – I did not see any reference to my question and would appreciate a response as soon as possible, as due to medical situation, have to make a decision soon. We own an OLD house with 13′ ceilings in a large part of the home and 11″ ceilings in the LV/DR and BR. We are oscillating on where to place the ducts….Floor or ceiling. It appears to be counterproductive to me to put the duct work in the ceiling since it will have so far to go. We are looking for the most cost effective, not upfront cost but operating cost, solution. In addition, we are considering DF heat pumps. The house will need 2 or 3 to be zoned correctly. Please let me know about the duct placement and thank you for your help?

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Closing Off Part of the House To Save Energy on HVAC | HVAC Efficiency 5/5 (1)

Closing Off Part of the House To Save Energy on HVAC

Closing Off Part of the House To Save Energy on HVAC – I have a Heil gas/electric package unit in my home. I, particularly, want to know, if I can close off a section to save on heating. Heating dealers have not been helpful as they hedge on whether and how this can be done with the system still running at it’s most efficient. I have closed doors to seal off area. Then closed floor registers. Should I also close air return in that area? I just read this should not be done at all as it decreases units efficiency? Will you please advise. I am thinking of closing off part of the house to save energy on HVAC. Thank you.

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Heat Pump Troubleshooting Advice | Heat Pump Repair 5/5 (4)

Heat Pump Troubleshooting Advice | Heat Pump Repair

Heat Pump Troubleshooting Advice: Before calling a heating and air conditioning company, check the following:

Heat Pump Troubleshooting Advice | Heat Pump Repair

  • Check selections on thermostat. Ensure that it is set to the desired settings.
  • Check power supply. This can include a circuit breaker and or/a regular looking wall switch close to the unit
  • Check for freezing up of air conditioner or heat pump units. If the air conditioner or heat pump unit is frozen turn it off. Check the air filter(s) to make sure they are not clogged or obstructed in any way. If you find no problems leave the unit turned off and call a service company.

Heat Pump Troubleshooting Advice – Additional Helpful Hints

  • Always change your filter on a monthly basis
  • Make sure all your supply vents are open and unobstructed
  • Keep area clean around indoor unit especially the return grills
  • Keep outdoor condensing units free of leaves, grass, and debris including trash cans and/or children’s toys or playthings like small plastic pools or playhouses. Additionally your service technician will appreciate you not planting holly bushes near the outside unit
  • Have air conditioner, heat pump, or furnace system serviced every six months

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How DDC Status Works – Methods and Types | HVAC Control 5/5 (2)

How DDC Status Works – DDC and Status – Is the Device On or Off

How DDC Status Works? DDC Status Methods and Types
This is a current switch sometimes referred to as a CT switch. This switch has an adjustable range from 1 to 200 Amperes. This switch also has a trip setting so it will trip if an adjusted set amount of amperes is exceeded.

The basics of DDC include learning about the status of a fan or a compressor or pump. How does a DDC controller read the status of the device it is monitoring? There are several ways to prove a device is running and some pros and cons of each type of device used to monitor on or off status. This is a basic DDC guide or reference to help a person understand the basics of DDC status and how it works. When one learns how DDC status works they can improve their troubleshooting skills. Too many maintenance technicians and others including HVAC technicians don’t understand DDC systems or building automation systems and are therefore crippled when it comes to troubleshooting DDC systems. High Performance HVAC hopes to change that and help HVAC techs and HVAC maintenance staff learn the basics of DDC systems including how DDC status works. Once someone understands the basics about DDC a light will turn on and they will see that DDC is not really rocket science.

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Boiler Efficiency Options | Buyers Advice 5/5 (2)

Boiler Efficiency Options | Buyers Advice

Boiler Efficiency Options

Boiler Efficiency Options – High Performance HVAC wants to help you understand your next boiler purchase better. To do this we want to break down all the different types of boilers and components, and various options and features that you may find when making a purchase. Typically you want to find a like replacement for the boiler you currently have installed or if you are buying a new boiler you want system that will handle the load and is durable. The most important feature about the new purchase is usually the fuel efficiency simply because the cost of running the new system will give you pay back over time for the new purchase.

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Hot Water Boiler Reset Control | Heating and Cooling 5/5 (2)

Hot Water Boiler Reset Control
Hot Water Boiler Reset Control

Richard,
We are looking at replacing our boiler with a new boiler. The HVAC contractor, I suppose he is the salesman for the HVAC contractor, is trying sell us what he refers to as a reset control for our boiler. He tells us it will save us more money by making our boiler more efficient. I think I understand how it works but my wife is not entirely sure about it. Can you tell us what you think about a boiler reset control and how it works?

Thanks and we have learned so much from High Performance HVAC. Keep up the good work.

Brent

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Home Inspector HVAC Training | Heating and Cooling 5/5 (2)

Home Inspector HVAC Training
Mechanical Code Book

Home Inspector HVAC Training

Thank you!! I am training to become a home inspector and the info contained on this site is helpful in identifying issues that require a HVAC professional to resolve. Read more…….

You’re welcome! I understand that everything at High performance HVAC is limited and there is so much more to learn about and for me to write about when I get the time for it. Don’t limit yourself to just what is contained on High Performance HVAC as there is so much more to learn as far as HVAC training and learning air conditioning and heating systems. Additionally, some of that knowledge you learn will come with experience so even after studying air conditioning and heating and other areas of home inspecting there is more to learn in the future that only comes with time and experience.

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Thermostat Wire Colors Code | HVAC Control 4.75/5 (4)

What you will learn in this article:
1) What thermostat wire color is likely to go to which terminal on the thermostat
2) The function of each wire terminal on the average thermostat highlighting some of the differences in those functions from manufacturer to manufacturer

Sometimes the thermostat is not the problem. Please check this article for a checklist of things to check before calling a heating and cooling repair service.

Thermostat Wire Colors Code | HVAC Control

Thermostat Wire Colors CodeThermostat Wire Colors Code – Always follow the thermostat manufacturers instructions whenever changing the thermostat. Always turn the power off at the air handler and the condenser and make sure there is no voltage at the transformer before proceeding. The thermostat wire colors below are the most likely colors used for most installations however your thermostat wire colors may be different than what is indicated here. There is no official standard for thermostat wire colors. Thermostat wiring colors are not standardized but these are the most wiring methods used based on my years of experience in the HVAC field where I successfully wired a lot of thermostats.
Honeywell Thermostats Available Here

For instructions on how to wire a thermostat please see our how to wire a thermostat page.

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