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Boiler Water Piping
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.
N
Condensate Trap must be piped to
condensate neutralization tank & floor drain
in accordance with all national, state, and
local codes. Heat trace may be required to
prevent freezing in un-insulated spaces.
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
Revised: June 2, 2017
Released: June 2, 2017
!
OTICE
HARSCO Industrial, Patterson-Kelley 2017
All Rights Reserved.
P-K SONIC
Technical Service 1.877.728.5351
N
OTICE
The SC-1500 and 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.
1004905978 P-K SONIC NURO Installation and
Owners Manual (Rev F Jun-2017).docx
®
Gas Fired Boiler
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anchor.
Page 36
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