Title:
HOT WATER FILLING CONTROL DEVICE
Document Type and Number:
Japanese Patent JP2021046990
Kind Code:
A
Abstract:
To provide a hot water filling control device capable of eliminating restriction on an installing direction and a water-draining line and securely discharging internal water during water draining.SOLUTION: A solenoid valve 103 is provided in a hot water supply passage connecting a water heater with a bathtub. A filter 101 removing foreign matters is provided upstream of the solenoid valve and a check valve 104a is provided downstream of the solenoid valve. A atmosphere release valve 105 opened by detecting pressure decline of clean water is connected to a space between the solenoid valve and the check valve. An air intake valve 107 closed by pressure of hot water and opened by spring force is connected to a space between the solenoid valve and the filter. Due to this configuration, since the atmosphere release valve is opened only by draining water in a passage for supplying clean water to the water heater, hot water between the check valve and the solenoid valve is drained. When the hot water in the hot water supply passage from the water heater is drained, the air intake valve is opened to take in air between the solenoid valve and the filter, and thus the hot water between the solenoid valve and the filter can be also drained.SELECTED DRAWING: Figure 2
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| JPS5835755 | 【考案の名称】温風暖房装置 |
Inventors:
TAKEBE SHIGEKI
Application Number:
JP2019171403A
Publication Date:
March 25, 2021
Filing Date:
September 20, 2019
Export Citation:
Assignee:
RINNAI KK
International Classes:
F24H9/16; F16K24/06; F24H1/00
Attorney, Agent or Firm:
Daisuke Mibayashi