10
3.
all joints between low water cut off control, gauges, valves, etc.
t
Before attempting any installation, operation, or maintenance procedures
pertaining to the unit:
1.
assure that the electric power supply has been turned off and locked out in
an approved manner;
2.
if the unit has been in operation, allow the water in the tank, as well as all
components and surfaces (heating elements, hot water outlet lines, etc.) to
cool before starting the procedure;
3.
assure that all incoming and outgoing water lines have been turned off at
the manual shutoff valves; and
4.
completely drain the tank, after allowing the water time to cool.
t
Hot / boiler water presents a situation that can be
very dangerous
due to the fact it
is under pressure and at very high temperatures. To avoid possible injury or death,
use common sense and follow all accepted and recommended procedures when
performing installation, operation, and maintenance procedures.
Содержание EHB
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Страница 62: ...59 9 If no leaks are found follow the startup procedures page 17 to put the unit back on line ...
Страница 63: ...60 Appendix A Typical Wiring Diagrams Figure A 1 Typical Wiring Diagram For Electric Water Heaters ...
Страница 64: ...61 Appendix A cont d ...
Страница 65: ...62 Appendix A cont d ...
Страница 68: ...65 ...