Watts AERCO SmartPlate SP23 - Page 77

SmartPlate Installation, Operation & Maintenance Manual
CHAPTER 8 – CORRECTIVE MAINTENANCE
OMM-0069_0H • SP-100 • 1/30/2020 Technical Support • (800) 526-0288 • Mon-Fri, 8 am - 5 pm EST Page 77 of 134
DOUBLE-WALL HEAT EXCHANGER REPLACEMENT Instructions
Figure 8-18. Domestic Water Side - Double-Wall Partial View
8. For larger SmartPlate units (models SPDW61, SPDW113) remove the U-bolt securing the
heat exchanger support bar (not shown above) and, if there is an “L” bracket, remove it.
9. For smaller SmartPlate units (models SPDW23, SPDW32 SPDW42) use a 3/4" socket
wrench to remove the horizontal hex head screw and washer shown in Figure 8-19. Also,
remove the hex nut securing the "L" bracket to the heat exchanger mount.
VICTAULIC
COUPLINGS
(4 PLACES)
HEAT EXCHANGER
MOUNT
“L” BRACKETS
(2 PLACES)
HEAT
EXCHANGER