Product Overview

ManualsBrandsTakagi ManualsResidential Tankless Water HeaterTakagi 10 GPM Energy Star Rated Natural Gas Outdoor Tankless Water Heater

Page 1 of 4

TRGSS00116

Residential Gas

Tankless Water Heaters

INDOOR MODELS

TK-540P-NIH AND TK-540P-PIH

OUTDOOR MODELS

TK-540P-NEH AND TK-540P-PEH

FEATURES:

INTEGRATED RECIRCULATION

PUMP

ENERGY STAR

QUALIFIED

AVAILABLE IN NATURAL GAS

OR PROPANE (LP)

INDOOR MODEL

• Includes integrated temperature

and pump controls with advanced

diagnostics that simplify installation

and troubleshooting

• Factory-installed power cord

OUTDOOR MODEL

• Includes a wall mount temperature

remote controller and advanced

diagnostics to simplify troubleshooting

DURABLE HEAT EXCHANGER:

• Primary heat exchanger is constructed

of a commercial-grade copper that is

more resilient to erosion.

• Secondary heat exchanger is made

of type 316L stainless steel to protect

against corrosion.

EASY-LINK 540P WITH THREE

OTHER T-H3 TO INCREASE

FLOW CAPACITY

COMMON VENT UP TO 8 UNITS

COMPLIES WITH LEAD FREE

STANDARDS

SAFETY FEATURES:

• Air-Fuel Ratio (AFR) Sensor

• Exhaust & Water Temperature

Safety Control

• Overheat Cut-Off Fuse

INTERNAL FREEZE

PROTECTION SYSTEM

POWER DIRECT VENT DESIGN

• Category IV venting can be used

• Exhaust, 3” PVC Venting up to 70

Feet or 4” PVC Venting up to 100

Feet

• Provides ﬂexible venting with PVC,

CPVC, or ABS Pipe for Intake and

Exhaust (solid core only).

ACCESSORIES

• Pipe Cover

• Neutralizer Kit

• Isolation Valve Kits

• Concentric Termination

• Product Preservers

Anti-Scale

System

WARRANTY

• 15-year limited warranty on

heat exchanger in residential

applications

• 6-year limited warranty on

heat exchanger in commercial

applications

• 5-year warranty on all parts

Ultra-Low NOx gas tankless water heaters with condensing technology

featuring a Uniform Energy Factor up to 0.95 which lowers operating costs

and is environmentally friendly.

CONDENSING TANKLESS WITH

INTEGRATED RECIRCULATION PUMP

ANSI Z21.10.3 • CSA 4.3

Summary of content (4 pages)

PAGE 1
Residential Gas Tankless Water Heaters CONDENSING TANKLESS WITH INTEGRATED RECIRCULATION PUMP INDOOR MODELS TK-540P-NIH AND TK-540P-PIH Ultra-Low NOx gas tankless water heaters with condensing technology featuring a Uniform Energy Factor up to 0.95 which lowers operating costs and is environmentally friendly.
PAGE 2
CONDENSING TANKLESS WITH INTEGRATED RECIRCULATION PUMP MODEL NUMBER Indoor Models TK-540P-NIH TK-540P-PIH Outdoor Models TK-540P-NEH TK-540P-PEH MODEL NUMBER Indoor Models TK-540P-NIH TK-540P-PIH Outdoor Models TK-540P-NEH TK-540P-PEH GAS CONSUMPTION INPUT TYPE INLET GAS PRESSURE MAXIMUM BTU/H MINIMUM IN. W.C. MAXIMUM IN. W.C. Natural Propane 15,000 13,000 199,000 199,000 4.0 8.0 10.5 14.0 0.93 0.93 Natural Propane 15,000 13,000 199,000 199,000 4.0 8.0 10.5 14.0 0.95 0.
PAGE 3
Residential Gas 540P Outdoor (AT-H3P-OS) Tankless Water Heaters OUTDOOR MODELS 11-1/4" (285 mm) 23-5/8" (600 mm) Drain port 6-1/4" (159 mm) RETURN 4-5/8" (117 mm) HOT 6-1/2" (164 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) RETURN 3-1/8" (79 mm) Drain port 4-7/8" (124 mm) HOT 6-3/4" (171 mm) FLOW RATE VS TEMPERATURE RISE 540P COLD 5/8" (17 mm) 120 VAC 2-7/8" (72 mm) GAS 5-3/4" (147 mm) Condensate drain port 7-1/2" (189 mm) 120 VAC 2-3/4" (71 mm) GAS 5-1/8" (131 mm) COLD
PAGE 4
Residential Gas Tankless Water Heaters SUGGESTED SPECIFICATIONS FOR TK-540P The fully modulating, on-demand, condensing gas fired tankless water heater(s) with integrated recirculation pump shall be Takagi Tankless Water Heater model TK-540P, having a maximum input rating of 199,000 Btu/h and available in NG or LP. The heater shall have ¾ in. male NPT water and gas connections. The inlet gas supply pressures shall be 4.0 in. WC (min.) up to 10.5 in. WC (max.) for NG and 8.0 in. WC (min.) up to 14 in.