Product Specifications

ManualsBrandsTakagi ManualsPlumbing SuppliesTK3-OS Tankless Outdoor Water Heater (Natural Gas)

Description/Application

Fuel: NG or LP

Built in Freeze Protection

Manual Reset Hi Limit (Set at 194°F)

Overheat Cut Off Fuse

Inlet, Outlet Thermistors for Constant

Temperature Monitoring

Air Fuel Ratio Rod

Flame Sensor

•

Safety Features

Accessories

(optional)

Default Mode: 99°F

100°F 102°F 104°F 106°F 108°F 110°F 111°F 113°F 115°F 117°F

122°F 131°F 140°F 158°F 167°F

Temperature Settings

Dip Switch: 113°F 122°F (default) 140°F 167°F

Takagi Industrial Co. USA, Inc.

5 Whatney Irvine, CA 92618

888.882.5244 www.takagi.com

TM-RE02 Remote Controller

TK - RB02 Recess Box

TK - PC01 Pipe Cover

TK - RE02 Temperature Remote Control

• 150’ Max Distance from Heater

• Non-Polarized 18 Gauge Control Wiring

Model T-K3-OS

12-023-2009

Met SCAQMD rule 1146.2 (certified by BR Lab)

8.0

7.0

5.0

3.0

1.0

0.0

0 20 40 60 80 100 120 140

T-K-3-OS Flow Rate Vs. Temperature Rise

Flow Rate (gpm)

Temperature Rise (°F)

6.0

2.0

Flow Rate (gpm)

Pressure Loss (psi)

Head Feet

T-K3-OS Pressure Loss

1.0

5.0

0.0

8.0

2.0 3.0 4.0 6.0 7.0

The T-K3-OS is a fully modulating, gas fired, tankless, on demand water heater. Installed outdoors only, and used in either

residential or commercial applications. Supplies hot water to: domestic hot water systems (directly or indirectly using water

storage tanks), recirculation systems, hydronic heating systems, radiant floor heating systems, and/or combined domestic &

heating applications etc.

Venting and Combustion

(Not Applicable For The T-K3-OS)

Summary of content (2 pages)

PAGE 1
UP Model T-K3-OS C ® Description/Application The T-K3-OS is a fully modulating, gas fired, tankless, on demand water heater. Installed outdoors only, and used in either residential or commercial applications. Supplies hot water to: domestic hot water systems (directly or indirectly using water storage tanks), recirculation systems, hydronic heating systems, radiant floor heating systems, and/or combined domestic & heating applications etc. Fuel: NG or LP 8.0 Safety Features 7.
PAGE 2
UP Model T-K3-OS C ® 13-3/4"(350mm) 5"(128mm) 20-1/4"(514mm) 21-3/8"(544mm) 19-3/8"(492.7mm) 1/6"(4.5mm) 1-3/4"(45mm) 1-1/4"(31mm) 1-5/8"(42.5mm) 8"(203mm) 10"(254mm) 1-3/4"(45mm) 8"(203mm) 1-3/8"(35mm) 1"(26.3mm) 2-3/4"(72mm)COLD 1-7/8"(47mm) 3-3/4"(96.5mm)120V 3-1/4"(84mm)COLD 5-3/8"(136.1mm)GAS 6-1/2"(164.4mm)HOT 5-1/4"(132.9mm)HOT 1-3/8"(36mm)120V 4-7/8"(124.3mm)GAS 9-1/2"(241.3mm) T-K3-OS: HT 20.5” NG LP W 13.8” Input Max BTU/h 190,000 190,000 GPM 0.5 - 7.