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4.4 P-K SONIC SC3000-SC4000
Natural Gas Train and Propane Gas Train Locations (SC3000GG & SC4000GG)
The dual fuel SONIC SC3000GG & SC4000GG feature one 2" gas valve/cock for Natural Gas and 1-
1/2" gas valve/cock for Propane Gas on the rear surface as shown below:
CLOSED. If operating with Propane Gas, ensure the Natural Gas valve/cock is CLOSED.
Failure to do so could result in equipment damage, injury, and/or death.
Revised: June 2, 2017
Released: June 2, 2017
If operating with Natural Gas, ensure the Propane Gas valve/cock is
HARSCO Industrial, Patterson-Kelley 2017
All Rights Reserved.
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P-K SONIC
Gas Fired Boiler
Technical Service 1.877.728.5351
1-1/2" NPT-F
Propane Gas
2" NPT-F
Natural Gas
1004905978 P-K SONIC NURO Installation and
Owners Manual (Rev F Jun-2017).docx
Page 50
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