With the heating season in full force, it is a good time to review best practices in heating troubleshooting. This article covers boilers. The following information is a summarized section from HVAC Troubleshooting, a guide book published by BSRIA, a test, instruments, research, and consultancy organization headquartered in the UK.
Bob and Tim were on their way to a service call on a heat pump. The homeowners are complaining about noise at the outdoor unit. When Bob and Tim arrived, the homeowners explained that the heat pump for upstairs is beside the house in a wooded area. It is under their upstairs bedroom window and it became loud last night.
Trainers Also Available to Travel to Conduct In-Depth Mold Training and Certification Seminar
February 2, 2015
The Environmental Hygienists Association (E.H.A.) announced that it is now providing online certified mold inspector and certified mold remediator training and certification for HVAC contractors, plumbers, and other contractors so that they can effectively find and eliminate toxic mold growth in customers’ homes and workplaces.
Bob and Tim were on their way to a service call where the customer is complaining about a high power bill. She said the heat pump that they use for their heat is running all the time and their power bill is really high.
In this troubleshooting situation you’ve been called to a restaurant to check an ice machine that, according to the customer, “isn’t working like it should.” You find that you’re dealing with a 240-volt, single-phase machine that has a remote condenser, and it also employs a small air compressor to provide air to assist in freeing the cubes.
Legislation Prompts CDA to Revisit Soldering Techniques for Making Proper Joints
December 8, 2014
Concerns related to soldering copper tube and the new no-lead copper alloys led the Copper Development Association (CDA) to conduct laboratory research and testing out in the field. The CDA found that, in many cases, those working with the new no-lead copper alloys were using the incorrect soldering procedure.
Bob and Tim were on their way to do routine annual service on a customer’s gas furnace and humidifier. Tim asked, “What are the things that we should look for that may cause problems on a gas furnace?”
Your troubleshooting problem involves a 3-ton split system, and the complaint is that in a high outdoor ambient situation, the unit is unable to obtain the necessary comfort level in the 1,200-square-foot building it is supposed to cool. And, this unit has a history.
Bob and Tim were at the shop after a day of service calls. The weather was still hot, 93°F, and Bob said, “We just did a service call with a system that was overcharged and had an orifice expansion device. I would like to go into further details with you on a system with a thermostatic expansion valve (TXV) for an expansion device.”