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TYPICAL INSTALLATION
System piping is application dependent. The diagrams shown
reflect typical piping for the most simplistic installations. Slab
and tile floor heating often require limit controls to insure fluid
temperature limits are not exceeded. Refer to guidelines provided
by the Hydronic Applications supplier and/or the Radiant Panel
Association to avoid piping and control pitfalls. Always consult
local code bodies for code requirements specific to an application
or location.
Closed loop secondary side piping should always include a
pressure relief valve, expansion tank, drain valve and air
separation device. Installers should also provide isolation valves,
purge valves, stainers and temperature regulating devices
appropriate for the application.
The XL is provided with plugged, auxiliary connections on the
front side of the Heat Exchanger. These are common to the
primary side of the heat exchanger. These can be used as
installation points for thermowells, a drain, or as connection
points to flush the heat exchanger, see Figure 3.
The pump supplied with the Promax XL is powered by
FIGURE 3
Side Loop Water Heater with Closed Loop Distribution Only
FIGURE 4
5
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