Title:
METHOD OF DETECTING CLOGGING OF FILTER AND FILTER CLOGGING DETECTOR
Document Type and Number:
Japanese Patent JP3655998
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To surely detect the clogging condition of a filter by a simple method.
SOLUTION: In a bath reheating device, which possesses a circuit 3a for reheating and circulation which circulates hot water between a bathtub 8 and a heater 33 for reheating and leads to the interior of the bathtub 8 through a discharge port 1a and a suction port 1b juxtaposed at the constituent wall of the bathtub 8 and a filter 1c which covers the suction port 1b so as to filtrate the return hot water flowing in the circuit 3a for reheating and circulation from the suction port by circulation, it is judged that the filter 1c is clogging when the rate of rise P per unit time of the temperature of the return hot water reaches a specified value P1 or over in the return path 32 from the suction port 1b of the circuit 3a for reheating and circulation to the heater 33.
Inventors:
Nakajima Tadashi
Application Number:
JP23158398A
Publication Date:
June 02, 2005
Filing Date:
August 18, 1998
Export Citation:
Assignee:
Rinnai Corporation
International Classes:
A47K3/00; F24H1/00; (IPC1-7): F24H1/00; A47K3/00
Domestic Patent References:
| JP8110088A | ||||
| JP10122646A |
Attorney, Agent or Firm:
Eiji Miyazaki
Koji Hadachi
Koji Hadachi
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