LAARS 9600 CB - Installation, Operation and Maintenance Instructions - Manual (Page 10)

Page 10
LAARS Heating Systems
Figure 11. Piping diagram for modular units and/or hydro air systems.
Figure 12. Wiring diagram.
1.12 Return Connections
a. Install a strainer between CB and system.
b. Connect the 1¼" return connection on the unit to
the return side of the system circulating loop.
c. Install a check valve (multiple units only), a
shutoff valve and a drain valve near the unit in the
return line.
d. Install a properly sized circulator in the system
loop.
1.13 Cold Water Make-Up
a. Connect the cold water supply to the inlet
connection of an automatic fill valve.
b. Install a suitable back flow preventer between the