Heat Pump Esco Study Guide Rated A+

On a water source heat pump, the heat mode water regulating valve must be; {Ans: Direct acting.}The most common method of defrosting the outdoor coil on an air source heat pump is; {Ans: Reverse cycle defrost.}What is the industry standard for deep vacuum? {Ans: Maintain 500 microns for 15 minutes.}What is the most common complaint from a customer changing from gas heat to a heat pump? {Ans: Cold air at high velocities coming out of the registers.}Some heat pump systems use a ______________ as a metering device. {Ans: Fixed orifice.}A customer complains that their heat pump systems blows cool air periodically during the heat mode. This could be caused by; {Ans: A faulty defrost relay (does not energized the aux. heat during the defrost mode.)}