AERCO SWDW68 U-Tube Double-Wall Heaters w/ECS - Manual (Page 75)

HE-
111 − CORRECTIVE MAINTENANCE
Rev B Mar 2013
8-21
3. Disconnect the wiring connector plug shown in View D – D.
4. Remove the four hex nuts and lock washers securing the Regulator to the studs on the bottom of the
chassis. Completely remove the DC Voltage Regulator from the Control Box.
5. Replace the DC Voltage Regulator by reversing the previous steps.
69012-1
2408
AUTO
MAN HOLD
RUN
OVER TEMP SWITCH
PT.NO.
TEMP CONTROLLER
A
A
B
B
1
3 4
NOTE:
SEE SHEET 5 FOR
PARTS LIST
12
D D
SIDE VIEW - TYPICAL
POWER ON
OFF
E
E
5
C
C
POWER IN
6
7
OR
13
Figure 8-11a. ECS Control Box Assembly Component Locations