PURPOSE:To make it possible to check/confirm an operation easily even at the time of new construction of an apparatus or maintenance and checkup thereof by providing an automatic hot water supply test mode switch which makes a function of automatic hot water supply be executed while neglecting ...
The catalytic combustion which occurs in cell 82 increases the temperature of the hot thermojunetions 106 therein, developing a small electromotive force in the latter. Since no combustion occurs in cell 80 during this time, the temperature of the heating element 77 therein remains constant. The ...