JPH0498021A - Antifreezing device of hot-water heating type air conditioner - Google Patents

Antifreezing device of hot-water heating type air conditioner

Info

Publication number
JPH0498021A
JPH0498021A JP2216904A JP21690490A JPH0498021A JP H0498021 A JPH0498021 A JP H0498021A JP 2216904 A JP2216904 A JP 2216904A JP 21690490 A JP21690490 A JP 21690490A JP H0498021 A JPH0498021 A JP H0498021A
Authority
JP
Japan
Prior art keywords
outside temperature
hot
microcomputer
indoor unit
control circuit
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
JP2216904A
Other languages
Japanese (ja)
Inventor
Toshio Maekawa
Original Assignee
Matsushita Seiko 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 Matsushita Seiko Co Ltd filed Critical Matsushita Seiko Co Ltd
Priority to JP2216904A priority Critical patent/JPH0498021A/en
Publication of JPH0498021A publication Critical patent/JPH0498021A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE: To prevent pipes from bursting because of freezing by a method wherein when operation is stopped, the outside temperature is always monitored by an outside temperature detector, and a hot-water valve is opened by an indoor unit side microcomputer when the outside temperature is low.
CONSTITUTION: An outdoor unit side microcomputer 1 always monitors the outside temperature by an outside temperature detector 2, and transmits the digitized signals of outside temperature data to an indoor unit side microcomputer 5 via an outdoor unit side communication circuit 3 and an indoor unit side communication circuit 4. When the instruction from an operation switch circuit 6 is a stop instruction, the indoor unit side microcomputer 5 submits instructions to a hot-water valve control circuit 7 to close a hot-water valve 24, and also to a heat source control circuit 10 and a fan motor control circuit 12 to stop a boiler 27 and a fan motor 25. When the outside temperature detector 2 detects that the outside temperature drops to nearly 0°C during stop mode, a signal is transmitted to the indoor unit side microcomputer it, and the microcomputer 5 submits an instruction to the hot-water control circuit 7 to open the hot-water valve 24 even when the operation switch circuit 6 is stopped.
COPYRIGHT: (C)1992,JPO&Japio
JP2216904A 1990-08-16 1990-08-16 Antifreezing device of hot-water heating type air conditioner Pending JPH0498021A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2216904A JPH0498021A (en) 1990-08-16 1990-08-16 Antifreezing device of hot-water heating type air conditioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2216904A JPH0498021A (en) 1990-08-16 1990-08-16 Antifreezing device of hot-water heating type air conditioner

Publications (1)

Publication Number Publication Date
JPH0498021A true JPH0498021A (en) 1992-03-30

Family

ID=16695740

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2216904A Pending JPH0498021A (en) 1990-08-16 1990-08-16 Antifreezing device of hot-water heating type air conditioner

Country Status (1)

Country Link
JP (1) JPH0498021A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170074606A1 (en) * 2012-11-19 2017-03-16 Robert Cooney Freeze Protection System With Drainage Control For Heat Transfer Coils in HVAC Systems
RU186002U1 (en) * 2016-12-16 2018-12-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского" (ФГБОУ ВО "ЛГПУ имени П.П. Семенова-Тян-Шанского") DEVICE FOR PROTECTION OF PIPES OF THE HEATING SYSTEM OF A PRIVATE HOUSE FROM DESTRUCTION WHEN FREEZING WATER IN THEM

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170074606A1 (en) * 2012-11-19 2017-03-16 Robert Cooney Freeze Protection System With Drainage Control For Heat Transfer Coils in HVAC Systems
US10260823B2 (en) * 2012-11-19 2019-04-16 Robert Cooney Freeze protection system with drainage control for heat transfer coils in HVAC systems
RU186002U1 (en) * 2016-12-16 2018-12-26 Федеральное государственное бюджетное образовательное учреждение высшего образования "Липецкий государственный педагогический университет имени П.П. Семенова-Тян-Шанского" (ФГБОУ ВО "ЛГПУ имени П.П. Семенова-Тян-Шанского") DEVICE FOR PROTECTION OF PIPES OF THE HEATING SYSTEM OF A PRIVATE HOUSE FROM DESTRUCTION WHEN FREEZING WATER IN THEM

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