JPH0361262U

JPH0361262U -

Info

Publication number: JPH0361262U
Application number: JP12071389U
Authority: JP
Priority date: 1989-10-16
Filing date: 1989-10-16
Publication date: 1991-06-17

Description

[Brief explanation of the drawing]

第１図は本考案の実施例を示す空調システムの
構成図、第２図は従来の空調システムの構成図、
第３図は第１図のシステムの冷房運転時の動作の
タイミングチヤート、第４図は暖房運転時の動作
のタイミングチヤートである。１０……センタヒートポンプユニツト、２１…
…四方弁、２２……圧縮機、２４……水熱交換器
、２５……空気熱交換器、２６……膨脹弁、２７
……フアン、２８……キヤピラリーチユーブ、２
９……開閉弁、４０……制御装置、４１……温度
検出器。 Figure 1 is a configuration diagram of an air conditioning system showing an embodiment of the present invention, Figure 2 is a configuration diagram of a conventional air conditioning system,
FIG. 3 is a timing chart of the operation of the system shown in FIG. 1 during cooling operation, and FIG. 4 is a timing chart of operation during heating operation. 10... Center heat pump unit, 21...
... Four-way valve, 22 ... Compressor, 24 ... Water heat exchanger, 25 ... Air heat exchanger, 26 ... Expansion valve, 27
...Juan, 28...Capillar Reach Yube, 2
9... Opening/closing valve, 40... Control device, 41... Temperature detector.

Claims

[Scope of claim for utility model registration] A water heat exchanger whose water temperature is adjusted by a center device, an indoor air heat exchanger, a compressor that circulates refrigerant through each heat exchanger, and a refrigerant In a water heat source heat pump unit equipped with a four-way valve that switches the circulation path between cooling and heating, the refrigerant circuit between the water heat exchanger and the air heat exchanger is connected to the refrigerant circuit on the low pressure side of the compressor. a refrigerant throttle path, an on-off valve that opens and closes the refrigerant throttle path, a temperature detector that detects the water outlet temperature of the water heat exchanger, and a first set temperature as an upper limit value of the water outlet temperature during cooling. and a second set temperature as a lower limit value, a third set temperature as a lower limit value of the water outlet temperature during heating, and a fourth set temperature as an upper limit value, and The valve is opened when the water outlet temperature measured by the temperature sensor rises above the first set temperature during cooling, closes when the water outlet temperature falls below the second set temperature, and closes when the water outlet temperature measured by the temperature sensor rises above the first set temperature during heating. A water heat source heat pump unit comprising: a control device that opens and closes when the temperature drops below a set temperature and closes when the temperature rises above the fourth set temperature.