AERCO Electronic Controls System (ECS) - Manual (Page 18)

Electronic Control System (ECS) and Type CXT-E Valve
2. INSTALLATION
Page 18 of 82
AERCO International, Inc. • 100 Oritani Dr. • Blauvelt, New York 10913 • Phone: 800-526-0288 VD2: 02/28/14
OMM-0003_0D AC-105
1) Loosen the captive screw on the right-front portion of the Control Box (Figure 2-3) to open
the hinged panel door.
WATER HEATER
TEMP CONTROLLER
B-PLUS TM
HOLD
RUN AUTO
MAN
2408
PT.NO.
PT.NO.
OVER TEMP SWITCH
PANEL
DOOR
CAPTIVE
SCREW
Figure 2-3. ECS Control Panel Front View
2) Next, open the door and loosen the captive screw at the top of the recessed panel (Figure
2-4). Swing down the recessed panel to access Terminal Block TB-2 on the bottom interior
surface of the Control Box shown in Figure 2-5.
B-PLUS
TM
PT.NO.
SET
F
AUTO RUN
MAN HOLD
OP 1 OP 2
SP2 REM
2408
OVER TEMP SWITCH
TEMP CONTROLLER
PT.NO.
WATER HEATER
PANEL CAPTIVE
SCREW
Figure 2-4. Recessed Panel Behind Control Box Door
3) Feed the external 120/240 VAC power leads through the cutout labeled “POWER IN” on the
right side of the Control Box.