| 摘要 |
PROBLEM TO BE SOLVED: To provide an air conditioning system which freely performs cooling and heating according to a temperature in a room or zone in an easy method.SOLUTION: An air conditioning system includes: a fan coil unit 10 including a coil 11, a fan 12, a control valve 13, a heat medium supply pipe 14, a heat medium discharge pipe 15, a temperature sensor 17, and a controller 18 for operating the control valve 13; a heat medium supply device 20; a thermal medium feed pipe 22; a thermal medium return pipe 23; a cold heat medium feed pipe 26; a cold heat medium return pipe 27; a first cutoff valve 31 to a fourth cutoff valve 34; and a control part 40. When an indoor temperature TR is lower than an indoor air temperature set value TS2, the first and second cutoff valves 31, 32 are opened and the third and fourth cutoff valves 33, 34 are closed. When the indoor temperature TR is higher than the indoor air temperature set value TR1, the third and fourth cutoff valves 33, 34 are opened and the first and second cutoff valves 31, 32 are closed.SELECTED DRAWING: Figure 1 |
