Installation Manual
Contents
2│Page
CONTENTS
SPECIFICATIONS
T‐H2‐DVandT‐H2‐OS
NaturalGasInput
(OperatingRange)
Min:13,000Btu/h
Max:199,000Btu/h
LPGInput
(OperatingRange)
Min:13,000Btu/h
Max:199,000Btu/h
GasConnection ¾”NPT
WaterConnections
¾”NPT
CondensateDrainPort
Connection
½”NPT
WaterPressure 15‐150psi*
NaturalGasPressure
Inlet
Min.5.0”WC
Max.10.5”WC
LPGas
PressureInlet
Min.8.0”WC
Max.14.0”WC
ManifoldPressureof
theT‐H2‐DV
Natural:3.2”WC
Propane:5.5”WC
ManifoldPressureof
theT‐H2‐OS
Natural:2.7”WC
Propane:4.6”WC
Weight
73lbs.(T‐H2‐DV)
70lbs.(T‐H2‐OS)
Dimensions
H25.6”xW18.5”xD12.4”
Ignition ElectricIgnition
Electric
Supply 120VAC(60Hz)
Consumption
Operationof
theT‐H2‐DV
152W
(1.27A)
Operationof
theT‐H2‐OS
102W
(0.85A)
Standby
8.2W
(0.07A)
Freeze‐
Protection
207W
(1.73A)
SPECIFICATIONS………………………………...
INTRODUCTION……………………………….…
SAFETYGUIDELINES…………….……………..
INSTALLATION………………………………..….
General………………………………………..…
IncludedAccessories…………………..…
Optionalitems…………………………..…..
WarningforInstallations………..….....
High‐altituderegionsupportfunctions…
T‐H2‐OSInstallation…………………….…
T‐H2‐DVInstallation………..…………..…
VentingInstructions……………………....
GasSupply/GasPipeSizing………...…
WaterConnections……………..……….…
PressureReliefValve………………………
Condensatedrain…………………………..
ElectricalConnections…………….........
RemoteControllerConnection…….…
PumpControlConnection………..…….
PumpControlMode…………………….…
Easy‐LinkSystem…………………………....
APPLICATIONS...…………………………………
SpaceHeating……….………….……………
INITIALOPERATION..…………………….……
OPERATINGSAFETY……………………………
NORMALOPERATION…………………………
General………..……….………….……………
Temperaturesettings.…….…..…………
Flow……………………………………………….
FreezeProtectionSystem…….…………
MaintenanceandService………………
UnitDrainingandFilterCleaning……
TROUBLESHOOTING……..……………………
General………..……….………….……………
Errorcodes.…………………….…..…………
COMPONENTSDIAGRAM………………..…
PARTSLIST………………….………………………
OUTPUTTEMPERATURECHART……...…
WARRANTY………………….…………………….
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Takagi reservestherighttodiscontinue,orchange
atanytime,specificationsordesignswithout
noticeandwithoutincurringobligations
.
*40psioraboveisrecommendedformaximumflow
NOTE
*Checktheratingplatetoensurethisproduct
matchesyourspecifications.
*InaccordancewithANZIZ21.10.3andSCAQMD
Rule1146.2,COemissiondoesnotexceed400
PPMfornormalinput
InstallationManual
Owne
r
’sGuide