AERCO ECS Retrofit - Manual (Page 52)

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6. Connect the Line, Neutral and Ground leads to the TB-2 terminals shown in Figure 4-18.
7. Close the swing-down panel after the power leads are secured to TB-2. Tighten the captive
screw to secure the recessed panel.
8. Close the front door of the ECS Control Box and tighten the captive screw to secure it in the
closed position.
9. Check the labels on the Control Box cables and connect them to the following components:
NOTE
The BOILER WATER IN and BOILER WATER OUT cables shown with an
asterisk (*) are used on Water-to-Water Heaters ONLY (E-Plus or Double-Wall
Models).
Label Connect To:
VALVE ACTUATOR 3-Pin Molex Connector on Actuator
FLOWMETER 5-Pin Connector on Flow Meter
OUTLET TEMP 4-Pin Connector on Dual Sensor (Outlet Port)
*BOILER WATER IN 2-Pin Connector at Heating Fluid Inlet
*BOILER WATER OUT 2 Pin Connector at Heating Fluid Outlet
Figure 4-16. ECS Control Panel Front View