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2.6 Gas Piping Considerations
Before making the gas hook-up, make sure the boiler is being supplied with the type of fuel shown on
the boiler nameplate.
The boiler shall be installed such that gas ignition system components are protected from water
(dripping, spraying, rain, etc.) during appliance operation and service (circulator replacement, control
adjustment, etc.).
2.7 Water Quality Standard
The P-K STORM
boiler's heat exchanger is made of stainless steel. The heat exchanger requires
®
proper water
conditions to remain efficient and function properly. For more information, refer to
Patterson-Kelley's Water Quality Standards for Hydronic Boilers in Multi-Metal Systems in
– Water Quality Standards Quality Standards for Hydronic Boilers in Multi-Metal
applies to the warranty of your heat exchanger.
NOTE: Failure to maintain the water quality according to the requirements of the multi-metal
systems water quality standards can void the heat exchanger warranty.
3 Installation
3.1 Overview
For site preparation follow the guidelines established in Section 2. Section 3 details the installation
requirements for electrical connections, combustion air, and flue vent piping, hydronic piping, etc.
3.2 Appliance Connections
The table below summarizes the appliance connections to the P-K STORM
Boiler Model
Power Requirement
Air Intake Connection
Nominal Exhaust
Vent Connection
Condensate Drain
Heat Exchanger Drain
Natural Gas Shutoff
Valve
HWR Connection
HWS Connection
Revised: February 2, 2024
Released: February 2, 2024
Supplying a fuel other than that shown on the appliance's
nameplate can lead to over firing of the appliance. This can
cause damage to the equipment which could result in serious
injury and/or death.
ST-2500
ST-3000
ST-3500
208-240/3/60 VAC -or- 440-480/3/60 VAC
12"
10"
2" NPT-F
4" Grooved (Carbon Steel)
4" Grooved (Carbon Steel)
Patterson-Kelley 2024
All Rights Reserved.
P-K Storm
Technical Service 1.877.728.5351
series boilers:
®
ST-4000
ST-5000
12"
3/4" CPVC Pipe
3/4" NPT-F
6" Grooved (Carbon Steel)
6" Grooved (Carbon Steel)
2691000403 P-K Storm ST2500-ST8000
Installation and Owners Manual Rev G.docx
®
Gas Fired Boiler
Appendix C
Systems, as this
ST-6000
ST-8000
16"
14"
2-1/2" NPT-F
Page 15
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