Water Heater Water Heater Brochure

Multi-UNIT* Up to 20 units Up to 20 units Up to 10 units
Maximum input (BTU/h) 3,980,000 3,980,000 3,800,000
Takagi tankless water heaters have the capability to link multiple heaters together to act as a system. The primary heater is
rotated to ensure even operation of all heaters. The D2,510U/C, H3, CT-199, and M50 series models can Easy-Link up to
four units using included communication cables.
For even larger applications the 510U (series 200), 510C, H3, CT-199, and M50 series models also feature the Multi-Unit
System, allowing a greater number of units to work together as an integrated system using a Multi-Unit System Controller. The
Multi-Unit System can control up to twenty 510U (series 200), 510C, H3, and CT-199 or up to ten M50 heaters.
Unit Comparison
Common Venting
The Takagi common venting system utilizes fewer unique
components so you can design your venting based on
project requirements.
More design flexibility
Fewer wall penetrations
Able to use schedule 40 PVC on intake
and exhaust
Heaters don’t de-rate when common vented
Design doesn’t override redundancy benefits
MULTI-UNITS SYSTEMS
*Requires Multi-Unit Controller: 100112691
510U/C Series H3/CT-199 Series M50 Series
EASY-LINK
TM
(No Controller Necessary) Up to 4 units Up to 4 units Up to 4 units
Maximum input (BTU/h) 796,000 796,000 1,520,000
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