P-K Storm
TM
Gas Fired Boiler
Technical Service 1.877.728.5351
Revised: October 2, 2019
Released: October 2, 2019
Patterson-Kelley 2019
All Rights Reserved.
2691000099 P-K Storm Installation and Owners
Manual.docx
Page 39
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.
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 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
.
N
OTICE
!
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.
N
OTICE
!
The PK STORM boiler is furnished with 2
1/2” 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.
Outlet (Supply)
→
Inlet (Return)
←
Install Section IV Relief Valve
