JPS6419262A - Control circuit for heat recovery type chilled water apparatus - Google Patents
Control circuit for heat recovery type chilled water apparatusInfo
- Publication number
- JPS6419262A JPS6419262A JP17098287A JP17098287A JPS6419262A JP S6419262 A JPS6419262 A JP S6419262A JP 17098287 A JP17098287 A JP 17098287A JP 17098287 A JP17098287 A JP 17098287A JP S6419262 A JPS6419262 A JP S6419262A
- Authority
- JP
- Japan
- Prior art keywords
- mode
- timer
- heat recovery
- cold
- hot water
- 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
- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
PURPOSE: To suppress variation in mode within the set time of a same mode holding timer even if the cold/hot water temperature is varied by providing a timer for holding the operating time of the same operation mode in parallel with an auxiliary relay in an operation mode circuit. CONSTITUTION: When a load varies violently to cause a significant temperature fluctuation of cold/hot water temperature, transition is made violently among cooling, heat recovery and heating. Any one of auxiliary relays 7-9 is excited for each operating mode, and since timers 28-30 are provided in parallel with the relays 7-9 to form a circuit for self-holding any one of the relays 7-9 for the set time of a timer, operation mode is not switched for the set time of the timer even if the relay 10 or 11 is excited or not excited due to fluctuation of cold/hot water temperature. Consequently, deficiency of lubricant due to frequency mode switching can be prevented.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170982A JP2590111B2 (en) | 1987-07-10 | 1987-07-10 | Control circuit of heat recovery type cold / hot water system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62170982A JP2590111B2 (en) | 1987-07-10 | 1987-07-10 | Control circuit of heat recovery type cold / hot water system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6419262A true JPS6419262A (en) | 1989-01-23 |
JP2590111B2 JP2590111B2 (en) | 1997-03-12 |
Family
ID=15914936
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62170982A Expired - Lifetime JP2590111B2 (en) | 1987-07-10 | 1987-07-10 | Control circuit of heat recovery type cold / hot water system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2590111B2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0339868A (en) * | 1989-07-07 | 1991-02-20 | Hitachi Ltd | Control circuit of heat recovery type cold/hot water device |
JPH04105744U (en) * | 1991-02-20 | 1992-09-11 | 岩崎通信機株式会社 | Switch lever installation structure |
US7011004B2 (en) | 2001-07-06 | 2006-03-14 | Honda Giken Kogyo Kabushiki Kaisha | Trimming apparatus and method for fuel cell membrane/electrode coupling and transporting apparatus |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55163669U (en) * | 1979-05-14 | 1980-11-25 |
-
1987
- 1987-07-10 JP JP62170982A patent/JP2590111B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55163669U (en) * | 1979-05-14 | 1980-11-25 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0339868A (en) * | 1989-07-07 | 1991-02-20 | Hitachi Ltd | Control circuit of heat recovery type cold/hot water device |
JPH04105744U (en) * | 1991-02-20 | 1992-09-11 | 岩崎通信機株式会社 | Switch lever installation structure |
US7011004B2 (en) | 2001-07-06 | 2006-03-14 | Honda Giken Kogyo Kabushiki Kaisha | Trimming apparatus and method for fuel cell membrane/electrode coupling and transporting apparatus |
Also Published As
Publication number | Publication date |
---|---|
JP2590111B2 (en) | 1997-03-12 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Year of fee payment: 11 Free format text: PAYMENT UNTIL: 20071205 |