57MCP15-500.7
MODEL NOMENCLATURE
Table 57.1 - Model Nomenclature - Gas Furnace Option for Model MPR
Model Nomenclature
As noted in the previous section, units may have more than one Serial Plate. If the unit has the gas heat option, the furnace will
have its own model number separate from the main unit.
• Table 57.1 shows the nomenclature for the gas heat section option.
• Tables 58.1 and 59.1 on the following pages show the nomenclature for the main unit.
Digits Indicates Description Value
Cabinet
B C D
1,2,3 FurnaceModelPrex
Single,StandardEfciency FSP
●
Single,HighEfciencyCondensing FSC
Dual,StandardEfciency FMP
●
Dual,HighEfciencyCondensing FMC
1,2,3 FurnaceModelPrex
Dual,StandardEfciency FDP
●
Quad,StandardEfciency FQP
Quad,HighEfciencyHybrid FQH
Dual,HighEfciencyCondensing FDC
4,5,6,7 Furnace Input Rating
0150 - 150,000 Btu/hr
thru
1600 - 1,600,000 Btu/hr
See Next
Column
See Unit
Nomenclature
8 Heat Exchanger 409 Stainless Steel Heat Exchanger S ● ● ●
9 Ignition System Direct Spark Ignition S ● ● ●
10 Gas Type Natural Gas N ● ● ●
11 Modulating Capacity Control
Gas Only, Multiple 4 ●
Gas & Power Exhaust, Single 6 ●
Gas and Power Exh Master, Staged Slave(s) 8 ● ●
12 Air Temperature Rise
High Air Temperature Rise H
● ● ●Low Air Temperature Rise L
Not Applicable N
13 Not Used Not Currently Used 0 ● ● ●
14 Furnace Supply Voltage 115V/1ph (transformer from main supply voltage) A ● ● ●
(Continued on next page)