JPS5525752A - Controller for number of pumps - Google Patents
Controller for number of pumpsInfo
- Publication number
- JPS5525752A JPS5525752A JP9865578A JP9865578A JPS5525752A JP S5525752 A JPS5525752 A JP S5525752A JP 9865578 A JP9865578 A JP 9865578A JP 9865578 A JP9865578 A JP 9865578A JP S5525752 A JPS5525752 A JP S5525752A
- Authority
- JP
- Japan
- Prior art keywords
- pumps
- cool
- valves
- warm water
- over
- 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.)
- Pending
Links
Landscapes
- Control Of Positive-Displacement Pumps (AREA)
- Air Conditioning Control Device (AREA)
Abstract
PURPOSE: To enable a control of the most suitable number of pumps, by changing discharge of cool and warm water as occasion demands according to a local condition, and by simultaneously determining a change-over of a cool and warm water valve and a control of the number of pumps.
CONSTITUTION: Cool water flown from a cool water forward header CFH is sucked into pumps P1 to P3 through valves CFB1 to CFB3, and cool water being discharged flows to a cool water piping passage CFP through valves B1 to B3 and also flows to a warm water piping passage WFP through valves B4 to B6. A controller CONT for the number of pumps inputs operating condition signals of signal air conditioners AC1, AC2 and pumps P1 to P3 and changing-over condition signals of valves CB1, CB2, BB1 to BB2, B1 to B6 which are detected by a cool water discharge detector CDFT and a warm water discharge detector WDET. According to the input, the optional number of the pumps P1 to P3, which should start or stop running, are controlled, and cool-warm water change-over signals of the pumps P1 to P3 (signals for changing-over to CFB1 or WFB1) are outputed.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9865578A JPS5525752A (en) | 1978-08-15 | 1978-08-15 | Controller for number of pumps |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9865578A JPS5525752A (en) | 1978-08-15 | 1978-08-15 | Controller for number of pumps |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5525752A true JPS5525752A (en) | 1980-02-23 |
Family
ID=14225515
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9865578A Pending JPS5525752A (en) | 1978-08-15 | 1978-08-15 | Controller for number of pumps |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5525752A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0519839U (en) * | 1991-03-04 | 1993-03-12 | 東邦瓦斯株式会社 | Simultaneous cooling and heating air conditioning system |
-
1978
- 1978-08-15 JP JP9865578A patent/JPS5525752A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0519839U (en) * | 1991-03-04 | 1993-03-12 | 東邦瓦斯株式会社 | Simultaneous cooling and heating air conditioning system |
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