State Water Heater Water Heater Brochure

510 Series 510U/C Series 540/CT-199 Series 910 Series

Easy-Link

(No Controller Necessary)

Up to 4 units Up to 4 units Up to 4 units Up to 4 units

Maximum input (BTU/h)

796,000 796,000 796,000 1,520,000

Multi-UNIT*

N/A Up to 20 units Up to 20 units Up to 10 units

Maximum input (BTU/h)

N/A 3,980,000 3,980,000 3,800,000

*Requires Multi-Unit Controller: 100112691

State 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 510/U/C, 540, CT-199, and 910

models can Easy-Link up to four units using included

communication cables.

For even larger applications the 510U (series 200),

510C, 540, CT-199, and 910 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, 540,

and CT-199 or up to ten 910 heaters.

MULTI- UNIT SYSTEMS

Unit Comparison

The State 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

COMMON VENTING