Product Overview
Ultra-Low NOx Non-Condensing
Tankless Water Heaters
Page 1 of 4
TBGSS01212
FEATURES:
COMPLIES WITH SCAQMD
RULE 1146.2 AND OTHER
AIR QUALITY MANAGEMENT
DISTRICTS WITH SIMILAR NOx
EMISSION REQUIREMENTS OF
14 ng/J OR 20 PPM
MAXIMUM FLOW RATES UP TO
10.0 GPM
COPPER HEAT EXCHANGER
• 25x better heat transfer than
stainless steel thus stabilizing
outgoing water temperature quicker
and reducing pressure drop across
the heat exchanger.
INDOOR AND OUTDOOR
MODELS AVAILABLE
OUTDOOR MODELS INCLUDE
REMOTE CONTROL AS A
STANDARD FEATURE
INDOOR MODELS INCLUDE
BOTH A REMOTE CONTROL
AND A FACTORY-INSTALLED
POWER CORD AS STANDARD
FEATURES
AVAILABLE IN NATURAL GAS
ONLY
T-D2U-IN AND T-D2U-OS CAN BE
USED IN BOTH RESIDENTIAL
AND COMMERCIAL
APPLICATIONS
• Easy-Link up to 4 Units (no
additional parts or accessories
needed)
• Multi-Link up to 20
COMPLIES WITH LEAD FREE
STANDARDS
SAFETY FEATURES:
• Built-in Freeze Protection
• Manual Reset Hi Limit (Up to 194°F)
• Overheat Cutoff Fuse
• Inlet and Outlet Thermistors for
Constant Temperature Monitoring
• Air Fuel Ratio Rod
• Flame Sensor
VENTING AND COMBUSTION
• 4” Category III Stainless Steel
• Vertical or Horizontal Installation
• 50’ Max Length, 5 Elbows max (90°
elbows = 5’ equivalent length)
• Power Vent or Power Direct Vent
• Electronic Ignition - No Pilot Light
• 3” Combustion Air Intake (with
optional kit)
OPTIONAL ACCESSORIES
• Complete Line of Stainless Steel
Venting
• Recess Box (outdoor models)
• Pipe Cover
• Direct Vent Conversion Kit (indoor
models)
• Isolation Valve Kit
• Backow Preventer
• Concentric Termination Kits
WARRANTY
• 15-year limited warranty on heat
exchanger in residential applications
• 10-year limited warranty on
heat exchanger in commercial
applications
• 5-year limited warranty on all parts
Fully modulating, gas red, tankless water heater with sealed combustion and
power vented ue. Indoor and outdoor models available for residential applications.
Supplies hot water to domestic hot water systems (directly or indirectly) can be
used with water storage tanks, recirculation systems, hydronic heating systems,
radiant oor heating systems, and/or combined domestic & heating applications.
INDOOR MODELS
T-KJr2U-IN, T-K4U-IN, T-D2U-IN
OUTDOOR MODELS
T-KJr2U-OS, T-K4U-OS, T-D2U-OS
Tankless Water Heaters
Residential / Commercial Gas
ANSI Z21.10.3
T-D2U models
only
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