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Fig. 1
Piping diagram and controls.
Push
EWH case
Hot water outlet (with the red ring)
Cold water outlet (with the blue ring)
Drain valve
Safety valve
Safety valve handle
Safety valve drain pipe
Drainage to the sewage system
Flow pipe
Valve of cold water supply to EWH
Valve of hot water outlet
Cold water main pipe
Hot water main pipe
Hot water shutoff valve
Cold water shutoff valve
Cover
Temperature control knob
Indicator lamp
Fig. 2
The position of temperature switch.
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