Usually a HVAC contractor performs maintenance in the spring, in preparation for the upcoming summer. But, what about fall maintenance for the upcoming winter months?
Properly sizing and installing the suction line of a refrigeration system is very important to its overall operation. What happens when they aren’t installed properly and how can you avoid this?
Bob and Tim are on the second day of an inspection of an apartment house building that has multiple split-system heat pumps. They have inspected all 60 outdoor units on the roof. They are now going to inspect the indoor units.
Many refrigeration systems are installed using an outdoor air-cooled condenser. When these systems are installed in a climate where the outdoor temperature drops below 60°F, some means of preventing the condensing pressure from dropping too low must be incorporated into its design.
Hybrid sealants are drawing more attention from contractors and distributors. According to comments from within the industry solicited by Cliplight Manufacturing, which makes a variety of sealants, there is an interest for sealants that are a combination sealant, drying agent, and dye.
In this troubleshooting situation, the equipment you’re servicing is a 240-volt, single-phase split system in a small office, and the customer’s complaint is that the system is blowing warm air.
In the warm summer season, cooling equipment operates at near peak capacity. If that equipment is used for critical building functions, any equipment downtime for whatever reason is unacceptable.
A preventive maintenance program at a leading New England Ivy League university demonstrates how the push for more sustainable building management has led to a growing awareness of a chronic, widespread problem for HVAC motors: electrical bearing damage.
Bob and Tim have arrived at Tim’s first service call. Tim asked Bob, “What is this call all about?” Bob said, “This is a new customer that wants us to take over the maintenance work for this apartment house.”
