Rheem RTGH-RH10DV Service Manual page 20

Condensing tankless gas water heater
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20
CONNECTOR
NO. OF LOCATION
CN3
SMW250-06
CN5
SMW250-10
PIN
BOARD SILK
1
OPB
2
3
4
5
FLUX1
6
1
RPM
2
Chapter 1 Product Characteristics
DESCRIPTION
Optional Push Button
Unused
VCC
Water Flow Sensor
GND
Fan RPM Check
GND
HT SELV
SELV(5V)
SELV (5V)

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