4
GENERAL INFORMATION
INCLUDED HARDWARE
(2) Mounting Bracket (2 to 4) Duct Adapter (depending on Furnace model)
Ventilation Assembly 15 Amp Breaker (DFMD35,DFLD35 & DFLD40 models only)
REQUIRED TOOLS AND MATERIALS
Manometer Gauge/U-Tube Volt-Ohm Meter (15+ amps)
Gas Leak Detector Liquid Wrenches
Safety Glasses RTV Type Sealant
Pipe Thread Sealing Compound Foil Tape (optional)
A. Model Specifications
DFSAD12, DFSD12, DFSD16, DFSD20 (Small Furnace Models)
MODELS
DFSAD12 DFSD12 DFSD16 DFSD20
TYPE OF GAS
LP Gas LP Gas LP Gas LP Gas
BTU INPUT
12,000 12,000 16,000 18,000
BTU OUTPUT
9,120 9,120 12,160 13,680
DUCT STATIC PRESSURE
0.10" WC, 0" WC front 0.10" WC 0.10" WC 0.10" WC
AMPERAGE (AMPS)
2.4* 3.4* 3.4* 4.8*
WATTS
34 41 56 34
POWER SUPPLY (VOLT DC)
12 12 12 12
MINIMUM RETURN AIR
35 in.
2
35 in.
2
35 in.
2
35 in.
2
WC = Water Column; *15 Amp dedicated circuit for Furnace
DFMD16,DFMD20, DFMD25, DFMD30, DFMD35 (Medium Furnace Models)
MODELS
DFMD16 DFMD20 DFMD25 DFMD30 DFMD35
TYPE OF GAS
LP Gas LP Gas LP Gas LP Gas LP Gas
BTU INPUT
16,000 20,000 25,000 30,000 35,000
BTU OUTPUT
12,160 15,200 19,000 22,800 25,840
DUCT STATIC PRESSURE
0.20" WC 0.10" WC 0.10" WC 0.10" WC 0.10" WC
AMPERAGE (AMPS)
4.2* 4.2* 7.5* 7.5* 11.1*
WATTS
50 50 90 90 132
POWER SUPPLY (VOLT DC)
12 12 12 12 12
RETURN AIR
80 in.
2
80 in.
2
80 in.
2
80 in.
2
80 in.
2
MINIMUM RETURN AIR
65 in.
2
65 in.
2
65 in.
2
65 in.
2
65 in.
2
WC = Water Column; *15 Amp dedicated circuit for Furnace