MG2S Spec Sheet

7
All models are approved for both vertical and horizontal direct (2 pipe) venting applications.
See Vent Table below for specified sizes and allowable lengths.
Maximum Direct Vent, Dual Pipe Length (ft.)*
MG2S Inputs (BTUH)
Inlet / Outlet
3 in. Diameter
Inlet / Outlet
2 in. Diameter
45,000 60 30
60,000 60* 30
72,000 60 30
*NOTES:
1. Subtract 3.5 ft. for each additional 3" 90 degree elbow.
2. Two 45 degree elbows are equivalent to one 90 degree elbow.
3. One short radius elbow is equivalent to two long radius elbows
4. Do not include termination elbows in calculation of vent length
5. This table is applicable for elevations from sea level to 2,000 ft.
For higher elevations decrease vent pipe lengths by 8% per
1000 ft. of altitude.
6. Only the listed pipe materials are approved for use with M7
condensing furnaces.
7. For Canadian applications, use ULC S636 approved material.
8. For the 60,000 BTU top return furnance, the length of the 3"
diameter pipe must not be longer than 30 ft.
VENTING
Pipe Materials
ANSI/ASTM
Standard
Schedule 40PVC D1785
PVC-DWV D2665
SDR-21 & SDR-26 D2241
ABS-DWV D2661
Schedule 40 ABS F628
Foam / Cellular Core PVC F891
PolyPro® by DuraVent ULC-S636
MODEL IDENTIFICATION CODE
Gas Furnace
Efficiency (AFUE)
E = 80.0%
H = 83.0%
J = 84.5%
P = 92.1%
R = 95.0%
S = 96.0%
A = No Evap Coil Cabinet
B = Cabinet fits 18" nominal coil heights
M G 2 S - 045 F 2 A B M 1
Input Heating Capacity (BTU)
045 = 45,000
060 = 60,000
072 = 72,000
Series
Manufactured Housing
A = 120V, 1 Phase, 60 Hz
Revision
F = Front Return Downflow
T = Top Return Downflow
U = Upflow
1 = Single Stage
2 = Two Stage
Cabinet Width
M = Manufactured Housing
B = 17.5"
C = 21.0"