Rheem RTGH-RH10DV User Manual

14
Shutdown procedure
Ignition operation
POWER S/W ON
AGM Zero Position setting
Water Flow Control Valve
Zero Position setting
Bypass Flow Control Valve Zero Position setting
Initial check
check
Thermostat communication fault
H/L : Over-heating fault
flow control valve error
Mixing valve error
AGM error
Water leakage is detected error
NO
YES
NO
NO
76
67
HX Thermistor
Open or shorted
Exhaust Temp Thermistor
Open or shorted
Flame Signal Detected
before Ignition
Circuit Board
abnormality
Hot Water Thermistor
Open or shorted
Cold Water Thermistor
Open or shorted
HX Themistor or
Hot Water abnormality
NO
YES
Gas Solenold Valve closed
Flame sensor does not detect
a flame(More than DC 2.5V)
Hot water fixture opened
Pre-heating selection
Water Flow Sensor
detected > 0.5 GPM
Initial check normal
Inlet water high
temperature check
nomal
Fan Motor turn ON
Fan speed
(Feedback signal)
Re-ignition
(10 time or less)
Pre-heating Start
Igniter sparks
Gas Solenold Valve Opens
Flame signal
≤ DC 2.5V
Fan Motor RPM Control
Burner On Indicator lit
Igniter stops sparking
Burner On Indicator goes Off
Burner ON Indicator goes Off
At Max, BTU is
outlet water temp,
less than setting
Proportional control(gas and fan)
Water Flow Control Valve activates
Safety device
triggered
Igniter stops sparking
Gas Solenold Valve Opens
Igniter stops sparking
Flame signal
≤ DC 2.5V
Re-ignition
(8 time or less)
Extinction
(8 time or less)
High Limit switch
normal
Igniter sparks
Burner Limit
switch normal
YES
NO
Fan Motor stops
Post_purge time ≥ 30
Sec
Water flow control valve activates to
mid position
Safety device
triggered
Shutdown
Hot water fixture closed
Water Flow Sensor
detected > 0.4 GPM
Burner On Indicator goes off
Gas Solenoid Valve closes
NO
YES
YES
NO
Ignition operation
Fan Motor turn ON
Fan speed
(taget ±500rpm)
Igniter sparks
Gas Solenoid Valve opens
NO
YES
Water flow control valve activates to
mid position
Fix problem
Disconnect power
Error codes stops flashing
Power On/Off button turn OFF
Hot water fixture closed
Fan Motor stops
When the exhaust gas temperature is
greater than 149℉
(65℃)
Flame Detected before Ignition
Important EPROM Data or Safe Data
Abnormal
APS/Condensate – Open is Fault
Cold WaterThemistor
Open or shorted
Hot Water Thermistor
Open or shorted
HX Themistor
Open or shorted
Exhaust Thermistor
Open or shorted
Flame Detected after Exiting
a Flame On Condition
Fan abnomality
HX Themistor or
Hot Water abnormality
Gas Leakage is Detected
No water in Heat Exchanger
44
YES
NO
Power On/Off button turn OFF
Power Lamp light
Gas Solenold Valve closed
Flame sensor does not detect
a flame(More than DC 2.5V)
YES
NO
YES
NO
YES
YES
NO
YES
NO
YES
NO
YES
NO
NO
YES
YES
NO
NO
YES
YES
YES
NO
NO
YES
Circulation Pump Abnormality
Piping establishmet Abnormality
20
45
66
65
16
31
32
33
35
72
73
61
11
16
29
31
12
12
20
43
32
33
35
38
40
39
60
94
70
72
41
HotWaterModeFlowChart
Chapter1ProductCharacteristics
(taget±1000rpm)
YES
10
10

Rheem RTGH-RH10DV Specifications

General

Brand	Rheem
Model	RTGH-RH10DV
Category	Water Heater
Language	English