General Piping Requirements - Smith SERIES 28RTS/HE Installation & Operating Instructions Manual

SERIES 28RTS/HE BOILER INSTALLATION AND OPERATION INSTRUCTIONS
Page 16

GENERAL PIPING REQUIREMENTS

CAUTION: Never use automotive antifreeze in the
boiler or heating system. If antifreeze is necessary
it must be formulated specifically for hydronic
heating systems, such as ethylene or propylene
glycol. Failure to comply with this caution will void
the warranty!
All heating system piping must be installed by a qualifi ed
technician in accordance with the latest revision of the
ANSI/ASME Boiler and Pressure Vessel Code, Section
IV or CSA B51. Also ANSI/ASME CSD-1, Standard for
Controls and Safety Devices for Automatically Fired
Boilers where required. All applicable local codes and
ordinances must also be followed. A minimum clearance
of 1 in., 25 mm must be maintained between heating
system pipes and all combustible construction.
CAUTION: Improper piping of this boiler can result in
poor performance and premature failure of the boiler
voiding the warranty! Improper piping can also cause
fl ooding and extensive property damage!
Ensure that the boiler is level from front to back and from
side to side. Use metal shims to level the boiler. NEVER
use wood, plastic or other combustible materials as shims.
Figure 16 - Relief & Safely Valve Piping
If a boiler is installed above any radiation elements it must
be fi tted with a low water cutoff device.
Relief & Safety Valve Piping
Install the pressure relief or safety valve in the 3 in NPT
opening in the top of the back section, Figure 18 and
Table 5. Use bushings as needed.
WARNING: The discharge of the pressure relief
or safety valve must be piped to the fl oor to
prevent scalding in the event of a discharge, see
Figure 16. The discharge piping must be sized
the same as the pressure relief or safely valve
outlet. Never install any type of valve between
the boiler and the pressure relief or safety valve!
Failure to comply with this warning can result in
an explosion causing extensive property damage,
severe personal injury or death
Figure 17 - Front Section Tapping Locations
Figure 18 - Back Section Tapping Locations