Vent Terminals And Combustion Air Hoods - Modine Manufacturing MPR Series Installation And Service Manual

GAS HEATING OPTION VENT TERMINALS AND COMBUSTION AIR HOODS

Vent Terminals and Combustion Air Hoods

1. Do not operate the units without the factory supplied and/or
shipped loose power exhauster vent termination(s) and/or
combustion air hoods if applicable. Refer to Table 12.1 to
determine how many terminals and hoods are required
based on the model nomenclature.
Table 12.1 - Vent Terminal & Combustion Air Hoods
Nominal
Cabinet Heat
Size Digit Capacity
(Digit 6) 18 (MBH)
F 150
G 200
H 250
J 300
B
K 400
R 175
S 225
T 310
J 300
K 400
L 500
C
M 600
U 350
V 450
K 400
L 500
M 600
Q 800
1 900
2 1,000
3 1,200
4 1,400
D
5 1,600
V 450
P 620
6 850
7 950
8 1,220
9 1,420
2. Do not modify or obstruct the combustion air inlet louvers
or the power exhauster discharge cover terminations.
3. Do not add any vents other than those supplied by the
manufacturer. For units that require vent extension kits,
refer to Literature #MCP15-574, "Installation Instructions,
Extended Vent Kit, Model MPR Gas Heat".
4. For specific instructions on each configuration in Table
12.1, refer to the appropriate section indicated in the table.
Example: For D-Cabinet, Digit 18=V, refer to Section D.
12
Furnace
Field Installed Qty
Type &
(Instruction Vent Combustion
Section) Terminals Air Hoods
Non-
Condensing 1
(Section A)
Condensing
1
(Section C)
Non-
Condensing 2
(Section A)
Condensing
2
(Section C)
Non-
Condensing 2
(Section B)
Non-
Condensing 4
(Section B)
Condensing
2
(Section D) (internal)
Hybrid
Condensing
& Non- 4
Condensing
(Section E)
Section A: Non-Condensing B or C-Cabinet Furnaces
• Review Table 12.1 to verify this is the correct section for
the unit and furnace type installed. If not, refer to the
proper section as indicated for the unit as configured.
• For units that require vent extension kits, refer to Literature
#MCP15-574, "Installation Instructions, Extended Vent Kit,
Model MPR Gas Heat", otherwise install the vent
terminal(s) as shown in Figure 12.1.
• When the terminal(s) have been installed, proceed to the
"Start-Up" section.
Figure 12.1 - Vent Terminal(s) for Non-Condensing
Gas Furnace Option (B and C-Cabinet Units)
n/a
k C-Cabinet sized unit shown with two vent terminals.
B-Cabinet sized units have only one.
2
Section B: Non-Condensing D-Cabinet Furnaces
• Review Table 12.1 to verify this is the correct section for
the unit and furnace type installed. If not, refer to the
proper section as indicated for the unit as configured.
n/a
• For units that require vent extension kits, refer to Literature
#MCP15-574, "Installation Instructions, Extended Vent Kit,
Model MPR Gas Heat", otherwise install the vent
terminal(s) and combustion air hoods as shown in Figure
2
12.2.
• When the terminal(s) have been installed, proceed to the
"Start-Up" section.
Figure 12.2 - Vent Terminal(s) and Combustion Air
Hood for Non-Condensing Gas Furnace Option
(D-Cabinet Units)
MCP15-500.9
2
Gas Furnace Note: Caulk all mating surfaces
Vent Outlet before attaching to the unit
Vent Terminal with
Bird Screen for
Four (4) Furnace Units
(one on each side)
Vent Terminal with
Bird Screen for
Two (2) and Four (4)
Furnace Units
(one on each side)
Combustion Air Hood
for Two (2) and Four (4)
Furnace Units
(one on each side)
Note: Caulk all mating surfaces
before attaching to the unit
Screws
(supplied with kit)
Gas Furnace
Vent Terminal
with Bird Screen
(not pictured)