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Appendix E – Installation and Quick Reference
Fuel/Gas Supply
•
Refer to Section
piping with too much pressure drop will negatively impact the boiler's performance.
•
Install a lock-up type gas regulator to supply an appropriate gas pressure as described below:
Natural Gas
Minimum Inlet Pressure = 4.0" W.C.
Maximum Inlet Pressure = 14.0" W.C.
Patterson-Kelley recommends installing an individual lock-up type gas
regulator in the gas supply piping to each boiler. For installations where
one master lock-up type gas pressure regulator will service multiple
boilers, Patterson-Kelley recommends contacting the local regulator
representative for application assistance specifying the appropriate lock-
up type regulator and gas pipe sizing.
Electrical/Power Supply
•
Carefully inspect the boiler's nameplate labels which describe the power supply requirements.
•
Provide an appropriate power feed to the boiler with overcurrent protection:
Boiler Model
C-1500H
C-2000H
C-2500
C-3000 / C-4000 (240V)
C-3000 / C-4000 (480V)
The C-3000 & C-4000 MUST be ordered to the correct voltage! IT IS NOT POSSIBLE to convert a
C-3000 or C-4000 between the 240V and 480V configurations in the field.
•
Prior to startup, carefully check all electrical connections for tightness as connections can come
lose during shipping.
Exhaust Venting
•
The
P-K MACH
boilers are dual-certified as Category II & Category IV appliances, capable of
operating with slightly negative to slightly positive exhaust pressure. It is critical to ensure the
flue venting material is suitable for use with the boiler.
•
For Category II installations, ensure the flue venting system is designed to maintain a slightly
negative exhaust pressure between -0.01" W.C. and -0.04" W.C.
•
For Category IV installations, ensure the flue venting system is designed to maintain a slightly
positive exhaust pressure between +0.01" W.C. and +0.22" W.C.
Revised: January 3, 2020
Released: January 3, 2020
3.7
for information on proper sizing of the gas supply piping. Undersized gas
Power Supply Requirements
110-120VAC, single phase, 60Hz sized for 20 Amps.
110-120VAC, single phase, 60Hz sized for 20 Amps.
110-120VAC, single phase, 60Hz sized for 20 Amps.
208-240VAC, three phase, 60Hz sized for 20 Amps.
460-480VAC, three phase, 60Hz sized for 20 Amps.
Patterson-Kelley 2020
All Rights Reserved.
Technical Service 1.877.728.5351
Propane Gas
Minimum Inlet Pressure = 7.0" W.C.
Maximum Inlet Pressure = 14.0" W.C.
NOTE
NOTE
1004905981 P-K MACH C1500H-C4000 Installation and
®
P-K MACH
Gas Fired Boiler
Owners Manual (Rev F Jan-2020).docx
Page 119
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