JPH03213953A - Freezing preventive mechanism of hot water feeder - Google Patents

Freezing preventive mechanism of hot water feeder

Info

Publication number
JPH03213953A
JPH03213953A JP987790A JP987790A JPH03213953A JP H03213953 A JPH03213953 A JP H03213953A JP 987790 A JP987790 A JP 987790A JP 987790 A JP987790 A JP 987790A JP H03213953 A JPH03213953 A JP H03213953A
Authority
JP
Japan
Prior art keywords
temperature
freezing
pump
hot water
turned
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
Application number
JP987790A
Other languages
Japanese (ja)
Inventor
Kuninori Hashimoto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Takagi Industrial Co Ltd
Original Assignee
Takagi Industrial Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Takagi Industrial Co Ltd filed Critical Takagi Industrial Co Ltd
Priority to JP987790A priority Critical patent/JPH03213953A/en
Publication of JPH03213953A publication Critical patent/JPH03213953A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To make a simple configuration of a freezing preventive mechanism by a method wherein a heating source for preventing a freezing action and a temperature sensor are arranged in a circulating passage and the heating source is turned on or off within a temperature range near a freezing temperature and a hot water feeding pump is turned on or off within a temperature range higher than the former temperature range.
CONSTITUTION: During operation of a pump 7, as a sensor 11b detects that a hot water temperature is decreased down to a temperature T4 near a freezing temperature due to a reduction in surrounding air temperature, an electrical heater 13 at a heating part 14 acting also as a heater is operated to heat the circulating water. As a sensor 11a detects that the temperature becomes a temperature T2 slightly higher than T4, the heater 13 is turned off and operation of the pump 7 only is continued. Accordingly, temperatures at each of the positions in the circulation passage are made uniform under the continuous operation of the pump 7, resulting in that no local low temperature part is formed and then a freezing is prevented. The continuous operation of the pump 7 is turned off when the hot water temperature is higher than T2. Accordingly, it is not necessary to arrange a separate exclusive heater and a simple configuration can be assured.
COPYRIGHT: (C)1991,JPO&Japio
JP987790A 1990-01-19 1990-01-19 Freezing preventive mechanism of hot water feeder Pending JPH03213953A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP987790A JPH03213953A (en) 1990-01-19 1990-01-19 Freezing preventive mechanism of hot water feeder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP987790A JPH03213953A (en) 1990-01-19 1990-01-19 Freezing preventive mechanism of hot water feeder

Publications (1)

Publication Number Publication Date
JPH03213953A true JPH03213953A (en) 1991-09-19

Family

ID=11732385

Family Applications (1)

Application Number Title Priority Date Filing Date
JP987790A Pending JPH03213953A (en) 1990-01-19 1990-01-19 Freezing preventive mechanism of hot water feeder

Country Status (1)

Country Link
JP (1) JPH03213953A (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63207948A (en) * 1987-02-20 1988-08-29 Rinnai Corp Hot-water supplying apparatus of instantaneous supply type

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63207948A (en) * 1987-02-20 1988-08-29 Rinnai Corp Hot-water supplying apparatus of instantaneous supply type

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