State GTS-510U-NE User Manual

Gas Tankless Water HeaterTMSuitable for potable water heating and space-heating** Please refer to local codes for space-heating compliance.FEATURING

ϭϬ WĂŐĞ2. Direct-vent conversion kit: 9007667005 (TK-TV10)dŚŝƐ Ŭŝƚ ĐĂŶ ďĞ ƵƐĞĚ ƚŽ ĐŽŶǀĞƌƚ ƚŚĞ ǁĂƚĞƌŚĞĂƚĞƌĨƌŽŵĂƐŝŶŐůĞǀĞŶƚƐLJƐƚĞŵƚŽĂ

ϭϭ WĂŐĞWARNING FOR INSTALLATIONSFOR YOUR SAFETY, READ BEFORE INSTALLATION:Ž ŶŽƚ ŝŶƐƚĂůů ƚŚĞ ŚĞĂƚĞƌ ǁŚĞƌĞ ǁĂƚĞƌ͕ ĚĞďƌŝƐ ŽƌĨůĂŵŵĂďůĞǀĂƉŽƌƐŵ

ϭϮ WĂŐĞHIGH-ALTITUDE INSTALLATIONSŚĞĐŬ ƚŚĞ ĞůĞǀĂƚŝŽŶ ǁŚĞƌĞ LJŽƵƌ ǁĂƚĞƌ ŚĞĂƚĞƌ ŝƐ ŝŶƐƚĂůůĞĚ͘  ^Ğƚ /WƐǁŝƚĐŚĞƐ ƐŚŽǁŶ ŝŶ ƚŚĞ ƚĂďůĞ ďĞůŽǁ

ϭϯ WĂŐĞVENTING INSTRUCTIONSFor indoor models-General-dŚĞǁĂƚĞƌŚĞĂƚĞƌŵƵƐƚďĞǀĞŶƚĞĚŝŶĂĐĐŽƌĚĂŶĐĞ ǁŝƚŚƚŚĞƐĞĐƚŝŽŶ͞sĞŶƚŝŶŐŽĨƋƵŝƉŵĞŶƚΗŽĨƚŚĞůĂ

ϭϰ WĂŐĞ-Vent length and No. of Elbows-dŚŝƐŝƐĂĂƚĞŐŽƌLJ///ĂƉƉůŝĂŶĐĞĂŶĚŵƵƐƚďĞǀĞŶƚĞĚĂĐĐŽƌĚŝŶŐůLJ͘dŚĞǀĞŶƚƐLJƐƚĞŵŵƵƐƚďĞƐĞĂůĞĚĂŝƌƚŝŐŚƚ͘ůů

ϭϱ WĂŐĞsĞŶƟŶŐ/ůůƵƐƚƌĂƟŽŶƐͲFor the 110U Indoor (T-KJr2U-IN), 310U Indoor (T-K4U-IN) and 510U Indoor (T-D2U-IN) models&ŽƌĚĞƚĂŝůƐŽĨƚŚĞŽƉƚŝŽŶĂů

ϭϲ WĂŐĞͲsĞŶƚƚĞƌŵŝŶĂƟŽŶĐůĞĂƌĂŶĐĞƐͲĂŶĂĚĂ h͘^͘ŝƌĞĐƚͲǀĞŶƚĂŶĚŽƚŚĞƌƚŚĂŶŝƌĞĐƚͲǀĞŶƚŝƌĞĐƚͲǀĞŶƚKƚŚĞƌƚŚĂŶ ŝƌĞĐƚͲǀĞŶƚůĞĂƌĂŶĐĞĂďŽǀĞŐƌĂĚĞ͕ǀĞƌĂŶ

ϭϳ WĂŐĞͲ&ŽƌƐŝĚĞǁĂůůƚĞƌŵŝŶĂƟŽŶƐͲͲ&ŽƌƌŽŽŌŽƉƚĞƌŵŝŶĂƟŽŶƐͲ&Žƌ ŵƵůƚŝƉůĞ ƐŝĚĞǁĂůů ĞdžŚĂƵƐƚ ƚĞƌŵŝŶĂƚŝŽŶƐ ;Ğ͘Ő͘ ŵƵůƚŝͲƵŶŝƚ ƐLJƐƚĞŵƐͿ͕ĂŶ

ϭϴ WĂŐĞGAS SUPPLY AND GAS PIPE SIZING-General-ͻ dŚĞŵŝŶŝŵƵŵĂŶĚŵĂdžŝŵƵŵŝŶůĞƚŐĂƐƉƌĞƐƐƵƌĞƐĂƌĞ͗ͻ /ŶůĞƚ ŐĂƐ ƉƌĞƐƐƵƌĞƐ ƚŚĂƚ ĨĂůů ŽƵƚƐŝĚĞ ƚŚĞ

ϭϵ WĂŐĞͲEĂƚƵƌĂů'ĂƐ^ƵƉƉůLJWŝƉŝŶŐͲDĂdžŝŵƵŵĚĞůŝǀĞƌLJĐĂƉĂĐŝƚLJŽĨĐƵďŝĐĨĞĞƚŽĨŐĂƐƉĞƌŚŽƵƌŽĨ/W^ƉŝƉĞĐĂƌƌLJŝŶŐEĂƚƵƌĂů'ĂƐǁŝƚŚϬ͘ϲϬƐƉĞĐ

Ϯ WĂŐĞCONTENTSInstallation Manual ^W/&/d/KE^͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘͘

ϮϬ WĂŐĞͲDĞĂƐƵƌŝŶŐŝŶůĞƚŐĂƐƉƌĞƐƐƵƌĞͲdŚĞǁĂƚĞƌŚĞĂƚĞƌĐĂŶŶŽƚƉĞƌĨŽƌŵƉƌŽƉĞƌůLJǁŝƚŚŽƵƚƐƵĨĨŝĐŝĞŶƚŝŶůĞƚŐĂƐƉƌĞƐƐƵƌĞ͘ĞůŽǁĂƌĞŝŶƐƚƌƵĐƚŝŽŶƐŽŶŚŽǁƚ

Ϯϭ WĂŐĞ-Pressure relief valve-dŚĞ ǁĂƚĞƌŚĞĂƚĞƌŚĂƐ Ă ŚŝŐŚͲƚĞŵƉĞƌĂƚƵƌĞƐŚƵƚŽĨĨƐǁŝƚĐŚďƵŝůƚ ŝŶ ĂƐ Ă ƐƚĂŶĚĂƌĚƐĂĨĞƚLJ ĨĞĂƚƵƌĞ;ĐĂůůĞĚ Ă,ŝͲ>

ϮϮ WĂŐĞdDWZdhZZDKdKEdZK>>Z-INCLUDED ACCESSORIES-<Mounting and wiring the remote controller>1.ഩdĂŬĞŽĨĨƚŚĞ͞Back plate͟ĨƌŽŵƚ

Ϯϯ WĂŐĞ3.ഩdŝŐŚƚĞŶƚŚĞƚǁŽ"Fork terminals"ďĞŶĞĂƚŚƚŚĞƚǁŽ"Remote controller terminal"ƐĐƌĞǁƐŽŶƚŚĞďĂĐŬŽĨƚŚĞŵĂŝŶďŽ

Ϯϰ WĂŐĞ5.ഩWƵůůƚŚĞƌĞŵŽƚĞ͛ƐǁŝƌĞƐƚŚƌŽƵŐŚƚŚĞŚŽůĞĂƚƚŚĞďŽƚƚŽŵŽĨƚŚĞǁĂƚĞƌŚĞĂƚĞƌ͛ƐĐĂƐŝŶŐ͘6.ഩWƌŽƉĞƌůLJĂƚƚĂĐŚƚŚĞƌĞŵŽƚĞ͛ƐǁŝƌĞƐƚŽƚŚĞƌĞŵŽƚĞ

Ϯϱ WĂŐĞ^zͲ>/E<^z^dD;ǀĂŝůĂďůĞŽŶƚŚĞϱϭϬh;dͲϮhͿŵŽĚĞůƐŽŶůLJͿdŚĞϱϭϬh;dͲϮhͿŵŽĚĞůƐǁĂƚĞƌŚĞĂƚĞƌƐĐĂŶďĞĐŽŶŶĞĐƚĞĚǁŝƚŚŽƚŚĞƌĂůůŽǁĂďůĞ

Ϯϲ WĂŐĞϮ͘ ^ĞůĞĐƚŽŶĞƵŶŝƚƚŽďĞƚŚĞ“PARENT” ƵŶŝƚ͘ϯ͘ “PARENT”ƵŶŝƚ͗ >ŽĐĂƚĞƚŚĞƚǁŽďĂŶŬƐŽĨ/WƐǁŝƚĐŚĞƐĂƚƚŚĞďŽƚƚŽŵůĞĨƚŽĨƚŚĞĐŽŵƉƵƚĞƌďŽĂ

Ϯϳ WĂŐĞ(C) Examples of incorrect settings and /or connections CASE 1: Wrong DIPswitch setting on the "PARENT" unit CASE 2: Wron

Ϯϴ WĂŐĞCASE 3: Wrong connections between the "CHILD-1" unit and the "CHILD-2" unitͻ /Ĩ LJŽƵ ĐŽŶŶĞĐƚ ƚŚĞ “PARENT” ĐŽŶŶĞĐƚŽƌ

Ϯϵ WĂŐĞDh>d/ͲhE/d^z^dDDƵůƚŝƉůĞϱϭϬh;dͲϮhͿŵŽĚĞůƐĐĂŶďĞĐŽŵďŝŶĞĚĨŽƌĂŵƵůƚŝͲƵŶŝƚƐLJƐƚĞŵ͕ĂůŽŶŐǁŝƚŚƚŚĞŵƵůƚŝͲƵŶŝƚĐŽŶƚƌŽůůĞƌ;WĂƌƚƐϵϬϬϴϯ

ϯ WĂŐĞ/ŶƐƚĂůůĂƟŽŶDĂŶƵĂůInstallation ManualCONGRATULATIONSŽŶŐƌĂƚƵůĂƚŝŽŶƐĂŶĚƚŚĂŶŬLJŽƵĨŽƌĐŚŽŽƐŝŶŐŽƵƌƚĂŶŬůĞƐƐǁĂƚĞƌŚĞĂƚĞƌ͘ĞĨŽƌĞƵƐĞ͕ǁĞƌĞĐŽ

ϯϬ WĂŐĞAPPLICATIONSͲ^ƉĂĐĞͲ,ĞĂƟŶŐƉƉůŝĐĂƟŽŶƐͲͲZĞĐŝƌĐƵůĂƟŽŶͲ*The recirculation pump is to be controlled by:-Dual-set aquastat (recommended w/timer)ΎdŚ

ϯϭ WĂŐĞͲƵĂůͲƉƵƌƉŽƐĞŚŽƚǁĂƚĞƌŚĞĂƟŶŐͲ;ŽŵĞƐƚŝĐĂŶĚ^ƉĂĐĞ,ĞĂƚŝŶŐͿ͗ŝĂŐƌĂŵŵĂƚŝĐůĂLJŽƵƚŽĨƌĂĚŝĂŶƚŚĞĂƚŝŶŐĂŶĚĚŽŵĞƐƚŝĐǁĂƚĞƌŚĞĂƚĞƌƉĞƌŵĂƐƐ͘ĐŽĚĞ͘

ϯϮ WĂŐĞINITIAL OPERATIONIF YOU SMELL GAS:ͻ ŽŶŽƚƚƌLJƚŽƐƚĂƌƚƚŚĞǁĂƚĞƌŚĞĂƚĞƌ͘ͻ ŽŶŽƚƚŽƵĐŚĂŶLJĞůĞĐƚƌŝĐƐǁŝƚĐŚĞƐ͖ĚŽŶŽƚƵƐĞĂŶLJƉŚŽŶĞŝŶLJŽƵƌ

ϯϯ WĂŐĞOwner's GuideCONGRATULATIONSŽŶŐƌĂƚƵůĂƚŝŽŶƐĂŶĚƚŚĂŶŬLJŽƵĨŽƌĐŚŽŽƐŝŶŐŽƵƌƚĂŶŬůĞƐƐǁĂƚĞƌŚĞĂƚĞƌ͘ĞĨŽƌĞƵƐĞ͕ǁĞƌĞĐŽŵŵĞŶĚƚŚĂƚLJŽƵƌĞĂ

ϯϰ WĂŐĞOPERATING SAFETYFOR YOUR SAFETY READ BEFORE OPERATING͘ dŚŝƐǁĂƚĞƌŚĞĂƚĞƌĚŽĞƐŶŽƚŚĂǀĞĂƉŝůŽƚ͘/ƚŝƐĞƋƵŝƉƉĞĚǁŝƚŚĂŶŝŐŶŝƚŝŽŶĚĞǀŝĐĞƚŚĂƚ

ϯϱ WĂŐĞDANGERVapors from flammable liquids will explode and catch fire causing death or severe burns.ŽŶŽƚƵƐĞŽƌƐƚŽƌĞĨůĂŵŵĂďůĞƉƌŽĚƵĐƚƐƐ

ϯϲ WĂŐĞNORMAL OPERATIONGENERALZDKdKEdZK>>ZdŚĞŝůůƵƐƚƌĂƟŽŶďĞůŽǁƐŚŽǁƐĂŶĞdžĂŵƉůĞŽĨƚŚĞĚŝƐƉůĂLJ͘dŚĞĞdžĂĐƚĚŝƐƉůĂLJŵĂLJĚŝīĞƌĨƌŽŵĞdžĂŵƉů

ϯϳ WĂŐĞdDWZdhZ^dd/E'^Ͳ^ĞƚƚĞŵƉĞƌĂƚƵƌĞͲdDWZdhZd>K&ZDKdKEdZK>>ZEŽƌŵĂůKƉĞƌĂƟŽŶOwner's Guide°F ϭϬϬ ϭϬϱ ϭϭϬ

ϯϴ WĂŐĞADDITIONAL FEATURESͲ/ŶĨŽƌŵĂƟŽŶŵŽĚĞͲzŽƵĐĂŶŐĞƚƐŽŵĞŝŶĨŽƌŵĂƚŝŽŶĂďŽƵƚƚŚĞǁĂƚĞƌŚĞĂƚĞƌĐŽŶĚŝƚŝŽŶďLJƉƌĞƐƐŝŶŐƚŚĞ"INFO"ďƵƚƚŽŶ͘&

ϯϵ WĂŐĞdDWZdhZ^dd/E'^KEd,W;t/d,KhdZDKdKEdZK>>ZͿdŚĞƌĞĂƌĞϮƉƌĞƐĞƚƚĞŵƉĞƌĂƚƵƌĞƐ;ϭϮϬΣ&;ϰϵΣͿĂŶĚϭϰϬΣ&;ϲϬ

ϰ WĂŐĞModel110U Indoor(T-KJr2U-IN)110U Outdoor(T-KJr2U-OS)310U Indoor(T-K4U-IN)310U Outdoor(T-K4U-OS)510U Indoor(T-D2U-IN)510U Outdoor(T-D2U-OS)Natu

ϰϬ WĂŐĞFLOWͻ dŚŝƐƵŶŝƚĐŽŵĞƐĞƋƵŝƉƉĞĚǁŝƚŚŚĞĂƚŝŶŐďůŽĐŬƐƚŽƉƌŽƚĞĐƚŝƚĂŐĂŝŶƐƚĚĂŵĂŐĞƐĂƐƐŽĐŝĂƚĞĚǁŝƚŚĨƌĞĞnjŝŶŐ͘ͻ &ŽƌƚŚŝƐĨƌĞĞnjĞƉƌŽƚĞĐƚŝŽŶ

ϰϭ WĂŐĞD/EdEEE^Zs/ͻ ůĞĂŶƚŚĞĐŽůĚͲǁĂƚĞƌŝŶůĞƚĨŝůƚĞƌ͘;ZĞĨĞƌƚŽhŶŝƚĚƌĂŝŶŝŶŐĂŶĚĨŝůƚĞƌĐůĞĂŶŝŶŐƐĞĐƚŝŽŶŝŶƚŚŝƐƉĂŐĞ͘Ϳͻ ĞƐƵƌĞƚŚ

ϰϮ WĂŐĞTROUBLESHOOTINGGENERALPROBLEM SOLUTIONSTEMPERATURE and AMOUNT OF HOT WATER/ƚƚĂŬĞƐůŽŶŐƚŝŵĞƚŽŐĞƚŚŽƚǁĂƚĞƌĂƚƚŚĞĨŝdžƚƵƌĞƐ͘ͻ dŚĞ ƚŝŵĞ ŝƚ

ϰϯ WĂŐĞPROBLEM SOLUTIONSWATER HEATERhŶŝƚĚŽĞƐŶŽƚŝŐŶŝƚĞǁŚĞŶǁĂƚĞƌŐŽĞƐƚŚƌŽƵŐŚƚŚĞƵŶŝƚ͘ͻ /ƐƚŚĞĨůŽǁƌĂƚĞŽǀĞƌϬ͘ϱ'WD;ϭ͘ϵ>ͬŵŝŶͿ͍;Ɖ͘ϯ

ϰϰ WĂŐĞERROR CODES-General-ͻ dŚĞƵŶŝƚƐĂƌĞƐĞůĨͲĚŝĂŐŶŽƐƚŝĐĨŽƌƐĂĨĞƚLJĂŶĚĐŽŶǀĞŶŝĞŶĐĞǁŚĞŶƚƌŽƵďůĞƐŚŽŽƚŝŶŐ͘ͻ /ĨƚŚĞƌĞŝƐĂƉƌŽďůĞŵǁŝƚŚƚŚĞŝŶƐƚĂůů

ϰϱ WĂŐĞͲ&ĂƵůƚŶĂůLJƐŝƐŽĨƌƌŽƌŽĚĞƐͲ/ĨƚŚĞĞƌƌŽƌĐŽĚĞŝƐĚŝƐƉůĂLJĞĚŽŶƚŚĞĐŽŵƉƵƚĞƌďŽĂƌĚŽĨƚŚĞǁĂƚĞƌ ŚĞĂƚĞƌ ŽƌƌĞŵŽƚĞ ĐŽŶƚƌŽůůĞƌ͕ ƉůĞĂƐĞĐ

ϰϲ WĂŐĞdƌŽƵďůĞƐŚŽŽƟŶŐOwner's GuideRemoteGreen LEDMalfunctiondescriptionDiagnosis391dǁŽdŝŵĞƐ ŝƌͲĨƵĞůƌĂƚŝŽƌŽĚĨĂŝůƵƌĞͻ ŚĞĐŬĨŽƌĐŽŶŶĞĐƚŝŽŶͬď

ϰϳ WĂŐĞCOMPONENTS DIAGRAMIndoor modelsOutdoor modelsCase assemblyTemperature remote controller7210010040520030520070020510500520057040020017027040067

ϰϴ WĂŐĞ510U (T-D2U) models703121705053706704705110U (T-KJr2U) and310U (T-K4U) models70170510340240271570771540371470970871170510370940240271170771440

ϰϵ WĂŐĞComponents DiagramOwner's GuideBurner assembly1131141500571191511180554014011531540531527130561071061080601091117111120521014011161161151

5 WĂŐĞINTRODUCTIONͻ dŚŝƐŵĂŶƵĂůƉƌŽǀŝĚĞƐŝŶĨŽƌŵĂƚŝŽŶŶĞĐĞƐƐĂƌLJĨŽƌƚŚĞŝŶƐƚĂůůĂƚŝŽŶ͕ŽƉĞƌĂƚŝŽŶ͕ĂŶĚŵĂŝŶƚĞŶĂŶĐĞŽĨƚŚĞǁĂƚĞƌŚĞĂƚĞƌ͘ͻ dŚĞŵŽĚĞůĚĞƐ

ϱϬ WĂŐĞComponents DiagramOwner's GuideWater Way assembly463413453451403456460458462450414459454402460456461458404415407454405457406410455408456

ϱϭ WĂŐĞParts ListOwner's GuidePARTS LISTItem # DescriptionPart #110U, 310U and 510U modelsT-KJr2U, T-K4U and T-D2U modelsϬϬϭ ĂƐĞĂƐƐĞŵďůLJĨŽ

ϱϮ WĂŐĞItem # DescriptionPart #110U, 310U and 510U modelsT-KJr2U, T-K4U and T-D2U modelsϭϮϭϭϮϮϭϮϯ^ƵƌŐĞďŽdžƉůĂƚĞ'ĂƐŬĞƚ'ĂƐŬĞƚϯϭϵϭϰϯͲϭϳϲϯϭ

ϱϯ WĂŐĞItem # DescriptionPart #110U, 310U and 510U modelsT-KJr2U, T-K4U and T-D2U modelsϳϬϭ ŽŵƉƵƚĞƌďŽĂƌĚĨŽƌϭϭϬh;dͲ<:ƌϮhͿŵŽĚĞůƐ

ϱϰ WĂŐĞOUTPUT TEMPERATURE CHARTŚĂƌƚŝƐďĂƐĞĚŽŶƉƌŽƉĞƌůLJƐŝnjĞĚŐĂƐůŝŶĞ110U (T-KJr2U) modelsOutput Temperature ChartOwner's Guide310U (T-K4U)

55 WĂŐĞϭ͘ dŚĞ ŵĂŶƵĨĂĐƚƵƌĞƌ ǁĂƌƌĂŶƚƐ ƚŚŝƐ ƉƌŽĚƵĐƚ ĂŐĂŝŶƐƚ ĚĞĨĞĐƚƐ ŝŶ ŵĂƚĞƌŝĂůƐ Žƌ ǁŽƌŬŵĂŶƐŚŝƉ ĂƐ ĚĞƐĐƌŝďĞĚ ŝŶ ƚŚŝƐĚŽĐƵŵĞŶƚ ŝĨ ŝŶƐƚ

ϱϲ WĂŐĞͻപപ&ƌĞĞnjĞĚĂŵĂŐĞƚŚĂƚŽĐĐƵƌƐǁŝƚŚŽƵƚƚĂŬŝŶŐƉƌŽƉĞƌƉƌĞǀĞŶƚŝǀĞŵĞĂƐƵƌĞƐĂƐĚĞƐĐƌŝďĞĚŝŶƚŚĞŝŶƐƚĂůůĂƚŝŽŶŵĂŶƵĂů͘

ϲ WĂŐĞSAFETY GUIDELINESSAFETY DEFINITIONGENERAL 1. &ŽůůŽǁĂůůůŽĐĂůĐŽĚĞƐ͕ŽƌŝŶƚŚĞĂďƐĞŶĐĞŽĨůŽĐĂůĐŽĚĞƐ͕ĨŽůůŽǁƚŚĞŵŽƐƚƌĞĐĞŶƚĞĚŝƚŝŽŶŽĨ

ϳ WĂŐĞINSTALLATIONGENERAL1. &ŽůůŽǁĂůůůŽĐĂůĐŽĚĞƐ͕ŽƌŝŶƚŚĞĂďƐĞŶĐĞŽĨůŽĐĂůĐŽĚĞƐ͕ĨŽůůŽǁƚŚĞŵŽƐƚƌĞĐĞŶƚĞĚŝƚŝŽŶŽĨƚŚĞEĂƚŝŽŶĂů&ƵĞů&a

ϴ WĂŐĞINCLUDED ACCESSORIESKWd/KE>/dD^ͻ Installation and service must be performed by a qualified installer (for example, a licensed plumber or

ϵ WĂŐĞdŽƉĂĐŬŽƩŽŵ^ŝĚĞ^ŝĚĞ&ƌŽŶƚModel Top Bottom Front Back SidesϭϭϬh/ŶĚŽŽƌ;dͲ<:ƌϮhͲ/EͿΎϯϭϬh/ŶĚŽŽƌ;dͲ<ϰhͲ/EͿΎϱϭϬh/ŶĚŽŽƌ;dͲϮhͲ/EͿΎϭϮ