HTP Hydra Smart RT-199 Service Manual

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LP-532 REV. 8.13.2014
LP-532 REV. 8.13.2014
Description/Part # GasValve/7850P-012
Check Point
(Main PCB)
CN9
Function
Negative gas valve controls the regulation of gas and air mixture in the combustion
system.
Failure Event
① Gas leakage occurs.
② Gas valve does not operated. (Unable to open/close)
③ Gas flow is not modulated. (Proportional gas valve)
E󰘯ects
① Spark is not generated..
③ Operation of product is stopped.
④ Carbon monoxide exceeding the reference is discharged.
Error Code
Er 10
Diagonostic
① Check wiring for proper connection.
② Check the connection and mounting location.
③ Check resistance by using a multimeter.
Color/WireNumber
GasValve(purple):connector⑥,⑫
Description/Part # Air Gas Mixer / 7850P-004
Check Point
(Main PCB)
CN12
Function
Thecomponentprovidesproperairandgasmixturetotheburner.
Failure Event
①Imperfectcombustionoccurs.
②lifting󰘱ameoccurs.
E󰘯ects
①Abnormalproductoperation.
②Carbonmonoxideexceedingthereference.
Error Code
Er 67
Diagonostic
①Restartthewaterheater.
②Checkwiringforproperconnection.
③Checkthefanintake.
Color/WireNumber
AirGasMixer(black):①
connector (
AGM/Y Phase)
AirGasMixer(brown):②
connector (
AGM/Y Phase)
AirGasMixer(red):③
connector (
AGM/X Phase)
AirGasMixer(orange):④
connector (
AGM/X Phase)
AirGasMixer(yellow):⑤
connector
(GND)
AirGasMixer(green):⑥
connector (AGM Position Sensor)
AirGasMixer(white):⑦
connector(DC24V)
1.OperatingTemperature:32~140F
2.Usingthegaspressure:5kPa
3.Maximumamountofgas:5.5m3/hr(LNG)
4.T/D(Turn/Downratio):1:10
5.MotorSpeci󰘰cation
- Type : Stepping Motor
- Phase : 4 Phase
-Drivetype:UnipolarDrive/V-Constant
- Supply Power : 24v DC
- Phase excitation system : 2-2
-Stepangle:7.5deg(2-2Phase),(1-2Phase:3.75deg)
- Direction of rotation : CW / CCW (Bidirectional)
- Reduction ratio : 1 / 60
1.Backpressure
:1stvalve:50mbar
:2ndvalve:10mbar
2.Ambienttemperature:
:-15℃...70°C(5~158℉)
3.Maxinletpressure:60mbar
4.OperatingRatings:24V/50Hz
5.ElectricalLoad
:1st+2ndoperator420mAat24VRAC
①②③④ ⑤⑥⑦
① ② ③
④
⑤ ⑥
⑦ ⑧ ⑨ ⑩ ⑪ ⑫
Chapter 2 Components description Chapter 2 Components description
CN12
CN9

HTP Hydra Smart RT-199 Specifications

General

Brand	HTP
Model	Hydra Smart RT-199
Category	Water Heater
Language	English