Indoor heating and cooling indoor terminal, cooling / heating system and method of detecting erroneous line

摘要

PROBLEM TO BE SOLVED: To provide a cooling/heating indoor terminal capable of detecting incorrect wiring.SOLUTION: A cooling/heating indoor terminal 100 includes: a heat exchanger 103 capable of taking in a medium and discharging it after that via a pipe 102 having a valve 101; a detection part 104 for detecting a temperature of the medium which is taken into the heat exchanger 103; a control part 107 capable of setting one of a cooling operation and a heating operation, and for instructing start of the operation to be set to cooling/heating outdoor equipment 300; and a communication part 108 for performing single direction communication. After one of the cooling operation and the heating operation is instructed to the cooling/heating outdoor equipment 300 from the cooling/heating indoor terminal 100, when the temperature of the medium detected by the detection part 104 coincides with a desired temperature based on the other of the cooling operation and the heating operation different from the instructed one, the control part 107 detects that incorrect wiring exists in wiring 109.SELECTED DRAWING: Figure 1