Thermal Solutions APEX APX425C Installation, Operating And Service Instructions page 52

APEX Installation, Operating, & Service Instructions
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.
Figure 6-16, continued: Multiple Boiler Water Piping w/Domestic Hot Water Heater (Page 2 of 2)
52
106308-05 - 3/23