Description
Takagi TK-540P-NIH model is a model is a high-efficiency condensing indoor natural gas tankless water heater with a built-in hot water recirculation pump (for systems with a dedicated hot water return line). Intended for medium to large residential applications.
Features:
- Fully modulating, high-efficiency condensing design with commercial copper primary and 316L secondary heat exchangers, 0.93 UEF
- Model with built-in DHW (Domestic Hot Water) recirculation pump (up to 100ft with 1/2″ pipe and up to 500ft with 3/4″)
- Factory-installed power cord with plug
- Up to 10 GPM max flow rate
- Easy-link up to 4 units (no additional parts or accessories needed) and multi-link (cascade) up to 20 units
- Common vent up to 8 units
- Built-in safety features include freeze protection, air-fuel ratio sensor, exhaust & water temperature control, overheat cut-off fuse
- Flexibility in venting options (Cat. IV – PVC, CPVC, PP or Cat III – St. Steel)
- Electronic ignition – no pilot light
- Temperature & pump controller on front panel
- Wall-mounting design with integrated brackets
- AHRI certified, Low-Lead compliant, Low NOx (SCAQMD Rule 1146.2 – California & Texas, NG models only)
Technical Specifications:
- Shower Capacity: 4 – 3 Showers (5 GPM @ 75°F rise; 7.5 GPM @ 50°F rise; 10 GPM @ 38°F rise)
- Min Flow: 0.4 GPM
- Gas Input (Min – Max): 15,000 – 199,000 BTU/h
- Fuel Type: Natural Gas (4 – 10.5 WC pressure)
- UEF: 0.93
- Hot & Cold Water Connections: 3/4″ NPT
- Gas Connection: 3/4″ NPT
- Recirculation Connection: 3/4″ NPT
- Flue and Air Intake Connections: 4″ Default (up to 100ft of pipe length equivalent) or 3″ Optional (up to 70ft)
- Vent Pipe Material: PolyPropylene (recommended), PVC (solid core only) or Category III Stainless Steel
- Installation Altitude: 0 – 2,000 (de-rate for higher elevations, up to 10,100ft max – see manual for details)
- Power Supply: 120V, 60Hz (factory wired plug-in cord)
- Dimensions: 17-3/4″ Wide x 24-7/8″ High x 11-1/4″ Deep
- Weight: 60 lbs
Warranty:
15-year limited warranty on heat exchanger in residential applications/6-year limited warranty on heat exchanger in commercial applications/5-year limited warranty on all parts
Reviews
There are no reviews yet.