
www.fmiproducts.com
125598-01B
18
SPECIFICATIONS
MF42OPR AND MF48OPR
• Rating (Variable): 29,000/40,000 Btu/Hr
• Type Gas: Propane/LP
• Ignition: Electronic
• Manifold Pressure: 7.9" W.C.
• Inlet Gas Pressure (in. of water):
Max - 14" W.C., Min* - 11" W.C.
*For purpose of input adjustment
MF42ONR AND MF48ONR
• Rating (Variable): 29,000/40,000 Btu/Hr
• Type Gas: Natural
• Ignition: Electronic
• Manifold Pressure: 3.4" W.C.
• Inlet Gas Pressure (in. of water):
Max - 10.5" W.C., Min* - 5" W.C.
*For purpose of input adjustment
To Thermopile
To AUTO Terminal on
Switch
To OFF Terminal on
Switch
WIRING DIAGRAM (REMOTE READy MODELS)