AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS - Manual (Page 17)

HE-
111 − INSTALLATION
Rev B Mar 2013 2-7
2.4.1 Accessing the Control Box Interior
NOTE
After installing the Control Box, you can install a lock (not supplied) on its front door to
prevent unauthorized access to ECS settings.
1. Loosen the captive screw on the Control Box (Figure 2-5) front cover and open the hinged panel
door.
TEMP CONTROLLER
HOLD
RUN AUTO
MAN
2408
OVER TEMP SWITCH
PANEL
DOOR
CAPTIVE
SCREW
Figure 2-5. ECS Control Panel Front View
2. Loosen the captive screw at the top of the recessed panel (Figure 2-6). Swing down the recessed
panel to access Terminal Block TB-2 on the bottom interior surface of the Control Box (see
Figure 2-7).