Page 14
Figure 14.
Two FT floor heating only models, cascaded reverse return with
low temp zones and air handlers.
Cascade FT Floor Heating Only Boilers Piping
and Wiring Diagrams (continued)
See Section 1.B on page 3 for common pipe sizes for system and return/supply headers for dif
ferent system Delta
T’
s.
See SECTION 3 on page 22 for cascade kit details.
W
ARNING: This drawing shows suggested
piping configuration and valving. Check
with local codes and ordinances for
additional requirements.
See Section 1.C on page 4 for reference to adjust the internal LLH valves (V
-1, V
-2, V
-3) to
their proper positions PRIOR to boiler installation.
