Harsco Industrial C1500H Installation & Owner's Manual page 70

6.2.2 Main Assembly MACH
1
Back of Boiler
®
NOTICE! For a MACH
LP gas.
®
For a MACH C4000GG, the top connection is propane or LP gas and the rear connection is natural gas.
®
C2500/C3000/C4000 Natural Gas, Propane and Dual Fuel (GG) Boilers
3&4
Side of boiler
C2500GG/C3000GG, the top connection is natural gas and the rear connection is propane or
8
3&4
5
2
9
7
6
70
®
MACH Gas Fired Boiler
1. Boiler supply
2. Boiler return
3. Nat. gas inlet (see
note below)
4. LP gas inlet (see
note below)
5. Relief valve
6. Condensate drain
7. Boiler drain
8. Combustion air inlet
9. Exhaust vent