JPS5774520A - Remote controller for feed water heating device - Google Patents

Remote controller for feed water heating device

Info

Publication number
JPS5774520A
JPS5774520A JP15165080A JP15165080A JPS5774520A JP S5774520 A JPS5774520 A JP S5774520A JP 15165080 A JP15165080 A JP 15165080A JP 15165080 A JP15165080 A JP 15165080A JP S5774520 A JPS5774520 A JP S5774520A
Authority
JP
Japan
Prior art keywords
switch
voltage
half wave
lamp
remote controller
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
JP15165080A
Other languages
Japanese (ja)
Inventor
Shigeru Shiragaki
Tadashi Akiyama
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.)
Azbil Corp
Original Assignee
Azbil Corp
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 Azbil Corp filed Critical Azbil Corp
Priority to JP15165080A priority Critical patent/JPS5774520A/en
Publication of JPS5774520A publication Critical patent/JPS5774520A/en
Pending legal-status Critical Current

Links

Landscapes

  • Feeding And Controlling Fuel (AREA)
  • Control Of Combustion (AREA)

Abstract

PURPOSE:To enable a device side and a remote controller box side to be connected by a two-wire transmission passage in a feed water heating device installed outdoors by a method wherein an AC input is devices into a positive and a negative half wave, one voltage conducts start-stop and preset operations, while the other voltage divided into several steps conducts display and supervision. CONSTITUTION:When a power source switch SW is closed a positive half wave from transformer T makes an input potential of an comparator 4, a negative half wave lights a standby lamp L1 through a voltage stabilizing circuit. Next, when start switch S1 is turned on, the 2nd input potential of the comparator 4 falls down to the preset value by a variable resistance R12 and when it is higher than a potential at point A equivalent to a thermistor TH a combustion safety circuit 3 operates. When an ignition signal generating circuit 7 opens switch S2, the voltage of terminal #2 makes a sum of ZD4, D8 and ZD2 and turns on ignition lamp L2. When it is not ignited, switch S2 is not opened, an alarm generating circuit 8 opens switch S3 and lights alarm lamp L3.
JP15165080A 1980-10-29 1980-10-29 Remote controller for feed water heating device Pending JPS5774520A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15165080A JPS5774520A (en) 1980-10-29 1980-10-29 Remote controller for feed water heating device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15165080A JPS5774520A (en) 1980-10-29 1980-10-29 Remote controller for feed water heating device

Publications (1)

Publication Number Publication Date
JPS5774520A true JPS5774520A (en) 1982-05-10

Family

ID=15523199

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15165080A Pending JPS5774520A (en) 1980-10-29 1980-10-29 Remote controller for feed water heating device

Country Status (1)

Country Link
JP (1) JPS5774520A (en)

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