Bob and Tim were at a retail store and were preparing to do a routine service call on a 5-ton heat pump. It was a fall day with a temperature of about 50°F when they turned the heat pump on. After doing a visual inspection at the air handler, they moved to the roof to give the outdoor unit a visual inspection.
If you’re in the home performance industry, you know how essential your equipment is to your job. One small mistake can result in incorrect air tightness readings. To help home energy raters receive consistent test measurements, here are three tips to ensure your air tightness tests are accurate every time.
Bob and Tim were called to a heat pump problem where the homeowner said the unit was icing up in her basement. When they arrived, the housewife met them at the door and took them down to the basement and said, “This is not normal. I have never seen ice down here on these lines before.”
In this troubleshooting situation you are dealing with equipment that has only been in operation for two months. And during that time frame, the customer has complained that at times the box temperature is higher than it should be, but the unit then seems to recover and freeze OK.
Your role in this troubleshooting situation is a follow-up to visits by other technicians who responded to this customer’s complaint about the cost of operating their heat pump in the winter. Opinions offered so far range from a possibly failing reversing valve to improper use by the customer.
Bob and Tim were on their way to the shop on a hot Friday afternoon when Bob got a call on his cell phone from his wife who said, “The air conditioner is not working and my mom and dad are coming from out of town tonight. What are we going to do?”
Recommendations to achieve reliable and uninterrupted service
August 3, 2015
Every year The Hartford Steam Boiler Inspection and Insurance Co. (HSB) investigates numerous small refrigeration unit failures. The primary reason for the majority of these failures is poor or non-existent preventive maintenance for the unit.