JPS6441750A - Equipment for ventilation and air conditioning - Google Patents
Equipment for ventilation and air conditioningInfo
- Publication number
- JPS6441750A JPS6441750A JP62195196A JP19519687A JPS6441750A JP S6441750 A JPS6441750 A JP S6441750A JP 62195196 A JP62195196 A JP 62195196A JP 19519687 A JP19519687 A JP 19519687A JP S6441750 A JPS6441750 A JP S6441750A
- Authority
- JP
- Japan
- Prior art keywords
- pipe
- temp
- hot water
- freezing
- heat exchanger
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE:To improve reliability in preventing a working fluid flowing in a heat exchanger from freezing at the time of space heating operation by a method wherein when the temp. of the working fluid flowing in the heat exchanger is equal to a designated value or less, a temp. detection means discovers this fact and a heat medium is caused to flow into the steam heat exchanger from an introducing pipe for the heat medium. CONSTITUTION:When hot water heating the outside air returns to an outlet header pipe 25 and its temp. is equal to about 15 deg.C or less at the time of space heating operation, a thermometer 37 for the hot water and a temp. switch 47 detect this fact and open an air-operated valve 41 through an solenoid valve 45. As a result, steam is admitted to an inlet header pipe 23 from a steam introducing pipe 39 and the temp. of the hot water flowing in the pipe 23, a coil tube 27, and the pipe 25 is increased to be able to prevent the hot water from freezing. Consequently, the damage of the tube 27 and the pipe 25 caused by the volume expansion based on freezing can be prevented and the soundness of a cold and hot water coil 9 can be maintained and the reliability of ventilation air conditioning equipment can be improved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195196A JPH0674915B2 (en) | 1987-08-06 | 1987-08-06 | Ventilation and air conditioning equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62195196A JPH0674915B2 (en) | 1987-08-06 | 1987-08-06 | Ventilation and air conditioning equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6441750A true JPS6441750A (en) | 1989-02-14 |
| JPH0674915B2 JPH0674915B2 (en) | 1994-09-21 |
Family
ID=16337050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62195196A Expired - Lifetime JPH0674915B2 (en) | 1987-08-06 | 1987-08-06 | Ventilation and air conditioning equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0674915B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04506841A (en) * | 1990-03-26 | 1992-11-26 | カタロ，フランク | Compression and contraction device using improved impact blades |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499048A (en) * | 1972-05-22 | 1974-01-26 |
-
1987
- 1987-08-06 JP JP62195196A patent/JPH0674915B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS499048A (en) * | 1972-05-22 | 1974-01-26 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04506841A (en) * | 1990-03-26 | 1992-11-26 | カタロ，フランク | Compression and contraction device using improved impact blades |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0674915B2 (en) | 1994-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| SE8101768L (en) | DEVICE IN HEAT PUMP INSTALLATION | |
| EP1795844A3 (en) | Steam-heating apparatus | |
| KR910015828A (en) | An air conditioner that connects an indoor unit to a single outdoor unit through a plurality of refrigerant pipes and signal lines. | |
| JPS6441750A (en) | Equipment for ventilation and air conditioning | |
| SE8802951D0 (en) | HEAT PUMP PLANT FOR HEATING OF THE SPACES AND HEATING OF THE TAPP HOT WATER | |
| JPS57161437A (en) | Engine-driven heat pump system | |
| JPS54121448A (en) | Refrigerating system | |
| JPS55105192A (en) | Freeze preventing method for cooling tower | |
| JPS5563337A (en) | Air conditioner by solar heat | |
| JPS5642041A (en) | Air conditioner | |
| JPS57192735A (en) | Room cooling, heating and hot-water supplying device | |
| JPS6241533A (en) | Cooling water heat source cooling device | |
| CN207299985U (en) | A kind of flue gas heat-exchange unit | |
| JPS57208367A (en) | Four-way changeover valve for refrigerating device | |
| JPS5512372A (en) | Multi-chamber type air conditioner | |
| JPS54156253A (en) | Freezer controller | |
| JPS54122453A (en) | Steam-exhaust gas switching over type absorption refrigerator | |
| JPS57161436A (en) | Cooling and heating equipment by heat pump system | |
| JPS6470652A (en) | Refrigerator | |
| Kim et al. | An Analysis of Heat Transfer in the Flue Tube of a Pulse Combustor | |
| JPS5434162A (en) | Heat collecting type absorption type water cooling and heating device | |
| JPS6470661A (en) | Cold and hot changeover type absorption refrigerator | |
| JPS57161435A (en) | Cooling and heating equipment by heat pump system | |
| JPS57161441A (en) | Controlling device of absorption type refrigerating machine | |
| SU731208A1 (en) | Air conditioning plant |