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19
Primary Piping
If the radiant system tubing contains no
oxygen barrier, a stainless steel heat
exchanger must be used. Failure to
install a heat exchanger could lead to
premature failure of the outer tank and
void any warranty claim.
Radiant heating system piping should
include a means of regulating the boiler
return water. The return water tempera-
ture to the unit should be maintained at
130ºF or higher. Failure to prevent low
return water temperature to the unit
could cause premature failure of the unit
and it’s burner system resulting in severe
personal injury, death or substantial
property damage.
Size the system piping and circulator to pro-
vide the flow needed for the radiant system.
To control the zone circulators refer to Fig.
19, page 35.
To ensure adequate flow rate through
the ELITE, maintain a minimum 1 inch
diameter on the system piping connect-
ing the unit to and from the primary /
secondary connection.
System Piping - Multiple Units Installation
Use a balance manifold system as the pri-
mary / secondary connection to the space
heating piping as shown in Fig. 12 page 23.
Refer to Fig. 7 page 20 to install air elimi-
nation and expansion tank.
For the space heating piping refer to the
applications mentioned in this manual or
use recognized design methods.
To ensure adequate flow rate through
the ELITE, maintain a minimum 1 inch
diameter on the system piping connect-
ing the unit to and from the primary /
secondary connection.
NOTICE
NOTICE
WARNING
NOTICE