Boiler Water Piping - Harsco Industrial SC-2000 Installation & Owner's Manual

N !
OTICE
The SC-2000 boiler is furnished
with 3" grooved connections and
Victaulic Style 75 couplings. The
SC-3000 and SC-4000 boilers are
furnished with 4" grooved
connections and Victaulic Style 75
couplings. These couplings must
be used with the EPDM Victaulic
seals. Isolating valves must be
installed in both the inlet and outlet
water connections.
N !
OTICE
The Condensate Trap must be
piped to a drain in accordance with
all national, state and local codes.
If installed outdoors and the local
requires freeze protection, it must
be field heat traced.
3.7.1.2 Piping with Air Handling Units
The boiler piping system of a hot water heating boiler connected to heating coils located in air handling units,
where they may be exposed to refrigerated air circulation, must be equipped with flow control valves or other
automatic means to prevent gravity circulation of the boiler water during the cooling cycle.
Figure 3.7.2
3.7.2 Boiler Inlet and Outlet Connections
All water connections should be in compliance with national, state and local code requirements. Adapters from
Victaulic to NPT are available from Harsco Industrial, Patterson-Kelley. The bottom rear connection to the boiler is
the INLET and must be used for the return from the system. The top rear connection to the boiler is the OUTLET
and must be connected as the supply to the system. All water piping must be installed such that no stresses are
transmitted to the boiler. The boiler shall not be used as a pipe anchor.
Harsco Industrial, Patterson-Kelley Technical Service 1.877.728.5351
3.6.1 Gas Supply Piping by Installer
The boiler and all gas piping connections should be pressure-tested
and must be checked for leaks before being placed into service. Test
with compressed air or inert gas if possible.
The boiler must be disconnected at the boiler's manual shut-off valve
(located at the end of the supplied gas train) from the gas supply piping
system during any pressure testing of the system at pressures in
excess of 1/2 psig (14" w.c.).
During any pressure testing of the gas supply piping system at
pressures equal to or less than 1/2 psig (14" w.c.), the boiler must be
isolated from the gas supply piping system by closing the manual shut-
off.
Some leak test solutions, including soap and water, may cause
corrosion of the carbon steel gas pipe fittings. These leak test solutions
should be cleaned off after testing is complete.

3.7 Boiler Water Piping

3.7.1.1 Piping with Refrigeration Lines
When installed in a two-pipe system that provides both chilled and hot
water, the control system should be configured so as to limit the time
rate of change of temperature at the boiler. Consult your authorized
Harsco Industrial, Patterson-Kelley boiler representative for application
guidance.
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Gas Fired Boiler
Install Section IV Relief Valve Here
OUTLET (Supply) 
Possible installation location of
Section VIII Relief Valve
(SC-3000 & SC-4000 Only)
INLET (Return) 