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Installation/Operating Instructions
Invented for life
COMPONENT DETAILS
Earth leakage breaker
Flue terminal
Antifrost heater
High-limit switch
Empty heating prevention device
Thermal fuse
Over-heat prevention device
Burner manifold
Remote Control Connections
Hot-water temperature change connector
Ignition plug
Flame rod
Flame failure safety device
Gas solenoid valve set
Printed circuit board
Water flow rate adjusting valve
Gas connection
Outlet water connection
Power cable
Inlet water connection
• YS1770RA series, YS2170RA series