AERCO Electronic Controls System (ECS) - Manual (Page 19)

Electronic Control System (ECS) and Type CXT-E Valve
2. INSTALLATION
VD2: 02/28/14 AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 Page 19 of 82
AC-105 OMM-0003_0D
4) Connect the LINE, NEUTRAL and GROUND leads to the TB-2 terminals shown in Figure 2-
5.
CONTROL BOX - INTERIOR BOTTOM VIEW
REAR
TB-2
LINE NEUTRAL GROUND
100 101 102
GND
FRONT
VOLTAGE
REGULATOR
TERMINAL
BLOCK TB-2
EXTERNAL POWER WIRING
(120 – 240 VAC)
Figure 2-5. ECS Control Box AC Power Connections
5) Connect the Control Box cable labeled ACTUATOR to the 3-pin connector plug on the
Control Valve Actuator.
6) Check to ensure that all cable harness connectors and wire leads between the Control Box
and the following ECS components are secure:
a) Flow Sensor
b) Over-Temperature Solenoid
c) Outlet Dual Temperature Sensor
d) Heating Fluid Inlet/Outlet Temperature Sensors (Water-to-Water Heaters Only)
7) If the ECS was ordered with the Modbus Communication Option, proceed to step 8.
However, if this option is not included, no further steps are required for ECS installation.
NOTE:
Step 8 applies ONLY to Electronic Control Systems which include a
Temperature Controller (Eurotherm, Model 2408) equipped with a
Communications Board which allows connection to Modbus
Networks. The required signal connections will depend on the ports
available on the Energy Management System (EMS), Building
Automation System (BAS), or Computer being used with the ECS.