Spec Sheet
• 400 equivalent feet for 3/4 in. pipe diameter
• 100 equivalent feet for 1/2 in. pipe diameter
Take equivalent elbow lengths into consideraon when calculang pipe length.
For dedicated return lines: Total length includes both hot water supply and
dedicated return lines.
Cross-over mode: Total length includes both hot water supply and cold water
piping length from the tankless water heater to the thermal bypass valve.
Cross-over mode requires the use of a thermal bypass valve (included).
Maximum Recirculaon Pipe Lengths
Recirculaon Pump Control
Internal Mul-Speed DC Pump
• Smart-Circ™ “learns” users’ hot water paerns to acvate recirculaon.
• Manual schedule selecon is available with Accessory controllers (MC-195T or
control r™ Wi-Fi module)
Integrated pump allows for recirculaon through a dedicated return line or crossover
with thermal bypass valve.
Pressure Loss (ft. of Head)
Water Flow (GPM)
50
45
40
35
30
25
20
15
10
5
0
0 0.5 1.0
1.5
2.0 2.5 3.0 3.5