HTP Hydra Smart RT-199 Service Manual

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LP-532 REV. 8.13.2014
LP-532 REV. 8.13.2014
Function explanation
[Initial power-up condition]
Whenpowerissupplied,zeropointofthemixingvalveischeckedfor6seconds.Afterthat,normal
800stepsfunctionisinprogress.Atthistime,ifzeropointisnotconfirmed,Er66occurs.Aftererroris
automaticallyrestoredwhenzeropointwascon󰘰rmed,normal800stepfunctionisinprogress.
[DHW mode]
 DHWmodeisactivatedbythe󰘱owsensorsensing󰘱owof0.5GPMorabove.WhenthereisDHW
demand,󰘱owsensormonitorthefrequency(range:8Hzto12Hz),within2minutes.DHWtemperaturecanbe
set95~140℉(35℃~60℃).IfthereisDHWdemand,burnerstartsandmixingvalveoperatesautomatically.
Safety device function
[Power supply and frequency stability protection]
 Ifthepowersupplyvoltageislessthan90Vinputfor10seconds,errorcodewillbedisplayed,and
alloutputswillbestoppedexceptforthefanpost-purge.Theerrorwillautomaticallresetwhenvoltageis
abore100V.
 Thereferencefrequecyvalueisdeterminedbycheckingthepowersupplyfrequency50Hzor60Hz.
Iffrequencyisoutsidetherangeof±3Hzfromthereferencefrequency,errorcodewillbedisplayed,andall
outputswillbestoppedexceptforthefanpost-purge.Theerrorwillautomaticallresetwhenthefrequencyis
whithin±3Hzoffrequencystandards.
[Over-heating protection]
 Thewaterheaterhastwoovertemperatureswitch.Overtemperatureswitchisattachedtotheburner
andtheoutletsideagainstthefailureofthetemperaturesensordualprotectiondevice.Overheaterror
occurswhenthetemperatureswitchisopenandcloseuntilthefanisoperated.
[Gas leakage detecting]
 Thecontrollerisdesignedwithabuiltingasleakdetectionsensorthatwillshuttheunitdownincase
ofgasleak.Afaultcodewilloccurifthesensordetectsgasleakformorethan10minutesor3timesin1
hour.
[Mixing valve operation]
 DuringaDHWdemand,mixingvalvemodultaestocontroltheDHWoutlettemperaturebymixing
thecoldandhotwater.WhenthereisnoDHWdemand,mixingvalvestandsvyat800steps.Toprevent
the mixing valve mechanism from getting stuck, it moves 2,000 steps (fully closed) for 5 sec, then moves to
defaultposition(fullyopened)and󰘰nallybackto800step.
Chapter 3 How to use control panel
Control panel
ControllerLCDSpeci󰘰cation
Customized Temperature Control
Advancedtechnologyusedforthe󰘱owsensorandheatcapacitycontrolmakesdomestichotwaterhighly
e󰘲cientbymaintainingconstanttemperatureduringusage.
Chapter 3 How to use control panel
Control Panel Mode
Status display mode
StatusdisplaymodewillbeactivatedwhenbuttonBispressedandheldfor󰘰veseconds
whendisplaypanelispoweredON.

HTP Hydra Smart RT-199 Specifications

General

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