| 摘要 |
A retrofit automatic temperature controlling apparatus and kit is attached to a prior art steam-cold water mixing valve assembly to produce mixed cold water and steam as hot water at a controlled temperature. An adjustment screw (92) is added to the prior art valve assembly to limit the displacement of a steam poppet valve (42) which is opened by a retrofitted piston. Cold water is redirected to a retrofit temperature control assembly having a mixing chamber for receiving the cold water. A water and steam receiving conduit (110) terminates in the mixing chamber (114) and has fluid isolated sections for receiving steam and cold water with a sleeve valve member (138) for selectively coupling the steam and cold water sections to the mixing chamber (114). The sleeve valve member (138) is operated by a temperature sensing device (154) in the outlet hot water chamber. A disc member (180) separates the mixing chamber (114) and outlet hot water chamber with small passages which promote mixing.
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