Water Mixing Valve - Rheem RTGH-RH10DV Service Manual

Chapter 2 Components Description
Model
Function
Failure Event
Effects
Error Code
Diagonostic
Color / Wire Number
1. Cold water and hot water mixed
2. Step Control Motor Applied.
3. Operating Fluid : 0℃~80℃ (32 ~ 176℉)
4. Operating Pressure: 0~0.98Mpa
5. Supply Voltage : DC24V
6. PPS material Body
7. DHM : Domestic Hot Water Mixing Modulation
SFCV-KR : Water Mixing Valve
The part for controlling the temperature of hot water by mixing the cold and hot water in
order to prevent the burns and supply the constant temperature of hot water.
① Water leakage occurs around the water mixing valve.
② Abnormal valve operation.
① Operation of product is stopped once detecting water leakage.
② The temperature of hot water is not constant.
Er 16, Er 66
① Restart the product.
② Check the connection around the water mixing valve.
③ Check range of voltage.
[Water Mixing Valve]
DHM Y Phase (black) : connector ①
DHM Y Phase (brown) : connector ②
DHM X Phase (red) : connector ③
DHM X Phase (orange) : connector ④
GND (yellow) : connector ⑤
DHM Position sensor (green) : connector ⑥
Flow2 sensor (blue) : connector ⑦
DC 14V (white) : connector ⑧
Check Point
CN 10
(Main PCB)
① ② ③ ④ ⑤ ⑥ ⑦ ⑧
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