In this troubleshooting situation a technician has responded to a complaint of “not cooling” on a six-year-old R-410A split system that employs an upflow gas furnace indoor air handler and a condensing unit that sits on the ground, and there is less than 20 feet of connecting tubing.
This troubleshooting situation centers around an older 3-ton split comfort cooling system, and the customer is calling because their home is “just not comfortable.” The homeowner also tells the dispatcher that while the unit is operating and air is coming out of the registers, the temperature in the house is too warm.
Jim Johnson, an experienced trade school and community college instructor, discusses the HVAC industry and his column in The NEWS, ‘The Service Ticket.’ Listen now for a hint to the Not Enough Heat question from the Dec. 15 issue.
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.
All correct answers will be entered into a drawing. The winner will receive a Fieldpiece LT-17A digital multimeter. The answer to this riddle, and the next HVACR Service Ticket column, is scheduled to appear in a June 2015 issue of The NEWS.
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.
Your troubleshooting situation involves a standard natural gas, induced draft, hot surface ignition system furnace. This is a new installation that has been accomplished in anticipation of the upcoming heating season, and the problem is that during the initial start-up the unit did not perform properly.
This month’s troubleshooting situation involves an air-to-air package unit heat pump that is approximately six years old, and the customer’s complaint is that, rather than providing cooling, it’s just blowing warm air.
In this month’s troubleshooting situation, our customer’s description of the problem is “not cooling” and “blowing warm air,” and the equipment that is supposed to keep this residence comfortable is a split system that has been in service for 16 years.