Use and Care Guide

10
Electrical Specications by Heater Input
Item # kW Max Amps Required Breaker Req. Wire Size
18kW 18 75 2 x 40A Double Pole 2 x 8/2 AWG with Ground
24kW 24 100 3 x 40A Double Pole 3 x 8/2 AWG with Ground
29kW 28.8 120 3 x 40A Double Pole 3 x 8/2 AWG with Ground
Power Rates
Item # 240V 220V 208V
18kW 18,000 Watts 15,125 Watts 13,520 Watts
24kW 24,000 Watts 20,166 Watts 18,026 Watts
29kW 28,800 Watts 24,200 Watts 21,632 Watts
Your tankless water heater is now installed and ready to use! Follow the General Operating Instructions to complete the setup.
Terminal Block in Unit
40 Amp
Double Pole
40 Amp
Double Pole
40 Amp
Double Pole
40 Amp
Double Pole
40 Amp
Double Pole
Unit Requires 10 AWG ground wire - one for each 240V circuit
Unit Requires 10 AWG ground wire - one for each 240V circuit
L1L1 L2
8/2 AWG
8/2 AWG
L2
240V 240V
L1 L2 L1 L2
L1L1L1 L2
8/2 AWG
8/2 AWG
8/2 AWG
L2L2
240V 240V 240V
L1 L2 L1 L2 L1 L2
Wiring Diagram for 18kW
Wiring Diagram for 24kW, 29kW