Absorption heat pump control system
US4246761A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 30, 1978 |
| Grant date | Jan 27, 1981 |
| Priority date | — |
| Expiry date | Oct 30, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/62
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
An electrical control system for an absorption heat pump capable of conditioning a space by cooling or heating including: PA1 (a) a unit activation component 64a having an on and off position responsive to temperature in the space to be conditioned; PA1 (b) a mode selection switch 64e having a heating mode position and a cooling mode position; PA1 (c) safety switches 64c for sensing hazardous operating conditions; PA1 (d) a timer device 60 which is activated by the unit activation component 64a and the safety switches 64c and which, after a predetermined period of activation, turns an output 64 to an on position; PA1 (e) a first control circuit 68 for operating the outside fan 15a when the unit activation component 64a is in the on position; PA1 (f) a second control circuit 69 for operating the solution pump 30 when the timer output 64 is in the on position; PA1 (g) a third control circuit 70 for operating the second or chilled coolant pump 12p when the timer output 64 is in the on position; PA1 (h) a fourth control circuit 71 and 71' for moving a valve 14 to a heating position when the mode selection switch 64e is in the heating position and for moving the valve 14 to a cooling po…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.