Coway CHP-671R/L, Service Manual, Page: 6 / 74

Product characteristics and specifications
1-2 Coway co., Ltd
1-1-1 Major Part Characteristics
Part Name FEED valve / NOS valve (for safety cutoff)
Use Source water entry and safety cutoff function
Operation
principles
Opens and closes the flow path when full water signals from the low water level/full
water level sensor and overflow sensor are detected to stop entry of source water
in two ways.
Part Name Low water level / Medium water level / Full water level sensor (capacitance sensor)
Use Water level detection in the room-temperature water tank
Operation
principles Detects the room-temperature water tank level in three stages and adjusts room-
temperature water operation through the FEED valve.
Part Name Overflow sensor (capacitance sensor)
Use
Water level detection in the room-temperature water tank
Operation
principles Operates the NOS valve to cut off room-temperature water when the water
overflow sensor detects an overflow in the room-temperature water tank.

Major Part Characteristics
Parts Standard ratings and specifications Remarks
Feed Valve / NOS Valve
• Volts : DC 24 V
• AMPS : 210 mA
Compressor • Refer to the rating plate.