Bob and Tim are looking at a system that has a frozen evaporator coil. The system is in a home. They are talking about what has happened to the system and what to do about it.
In this troubleshooting situation we’re looking ahead to fall, and we’re following up on a complaint from a restaurant manager that one of the ice machines in his high volume establishment isn’t producing enough ice.
Bob and Tim are on their way to a new job and discussing what the work order said. Tim tells Bob that the customer is new and the work order says the thermostat is set at 74°F while the thermometer reads 78°F, and unit is running full time. The customers are uncomfortable.
In this month’s troubleshooting problem, you’re responding to a complaint that the temperature in a house is too warm. When you call ahead to let the customer know you’re on the way, they provide the additional information that “something is running,” but the temperature just continues to rise.
Bob and Tim are driving to a new customer site where there is a complaint of the building not maintaining the correct temperature. The system is a 50-ton air cooled chiller mounted on the roof. The weather is very hot, 97°F, and the indoor conditions are 78°F. The thermostat is set for 75°, and it is late afternoon.
This month’s troubleshooting situation involves an air-to-air, package unit heat pump that is approximately 8-years old, and the customer’s complaint is that, rather than providing cooling, it’s just blowing warm air.
Bob and Tim are going out to a new job. It’s an air cooled chiller on the rooftop of an office building. This is the first air cooled chiller that Tim has ever seen so Bob is going to have to describe the operation of the chiller to Tim.
The equipment in this month’s article is a two-stage air conditioning system. The operating conditions are high ambient, and the customer’s complaint is that there is no cooling.
Bob and Tim are at lunch and discussing the last service call that they had which was a spring start up on a 100 ton chiller. Tim has some questions about how a chiller operates and Bob is filling him in on some blank places that he has in his knowledge base.
In this troubleshooting situation, the equipment is a walk-in refrigeration system in a busy restaurant that has experienced a compressor failure…specifically a mechanical failure.
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