EcoSmart ECO 16 Installation Instructions & Homeowner's Manual page 6

INSTALLATION:
STEP 1
Models ECO 16 - 18 requires 2 sets of wires and ground (see wiring diagram)
Models ECO 21, ECO 24 & ECO 27 requires 3 sets of wires and ground (see wiring diagram)
STEP 2
Take each wire pair and connect them to one breaker (see wiring diagram). Make sure that each breaker has one wire
pair -black wire connected to it and one red wire.
CAUTION: Models ECO 21, ECO 24, and ECO 27 Take care to ensure that you have made the correct
connections. You must follow the wire connection as shown in Figure 3 to ensure proper operation of the unit. If
you cross a set of wires, the unit will not operate correctly even though it turns on and otherwise appears to
function properly.
Figure #2
Wire connections to breakers / Models Eco 16 & 18
G L2 L2 L1 L1
DOUBLE POLE DOUBLE POLE
40 AMP BREAKER 40 AMP BREAKER
Figure #3
Wire connections to breakers / Models Eco 21, 24 & 27
G L3 L3 L2 L2 L1 L1
DOUBLE POLE DOUBLE POLE DOUBLE POLE
40 AMP BREAKER 40 AMP BREAKER 40 AMP BREAKER