Thermal Solutions APEX APX425C - 6 Water Piping and Trim (continued); Multiple Boiler Water Piping Diagram (Page 2 of 2)

52
106308-05 - 3/23
APEX Installation, Operating, & Service Instructions
Figure 6-16, continued: Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 2 of 2)
6 Water Piping and Trim (continued)
NOTICE: Installing a low water cutoff in the
system piping of multiple boilers is strongly
recommended and may be required by local
codes.