Appendix E - Installation And Quick Reference - Patterson-Kelley P-K MACH CM300 Installation & Owner's Manual

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 = 3.5" – 4.0"
Nominal Inlet Pressure = 7.0" W.C.
Maximum Inlet Pressure = 14.0"
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
CM300
CM399
CM500
C750
C900
C1050
•
Prior to startup, carefully check all electrical connections for tightness as connections can come
lose during shipping.
Exhaust Venting
•
®
The P-K MACH
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 -0.05" W.C.
•
For Category IV sealed-combustion 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.
•
For Category IV exhaust-only installations, ensure the flue venting system is designed to
maintain a slightly positive exhaust pressure between +0.01" W.C. and +0.4" W.C.
Revised: January 3, 2020
Released: January 3, 2020
3.7 for information on proper sizing of the gas supply piping. Undersized gas
.
W.C
W.C.
Power Supply Requirements
110-120VAC, single phase, 60Hz sized for 10 Amps.
110-120VAC, single phase, 60Hz sized for 10 Amps.
110-120VAC, single phase, 60Hz sized for 10 Amps.
110-120VAC, single phase, 60Hz sized for 10 Amps.
110-120VAC, single phase, 60Hz sized for 10 Amps.
110-120VAC, single phase, 60Hz sized for 10 Amps.
boilers are dual-certified as Category II & Category IV appliances, capable of
 Patterson-Kelley 2020
All Rights Reserved.
Technical Service 1.877.728.5351
Propane Gas
Minimum Inlet Pressure = 7.0"
Nominal Inlet Pressure = 11.0" W.C.
Maximum Inlet Pressure = 14.0"
NOTE
1004905980 P-K MACH CM300-CM500&C750-C1050
Installation and Owners Manual (Rev F Jan-2020).docx
®
P-K MACH Gas Fired Boiler
W.C.
W.C.
Page 99