MG3P Installation Manual

53
Figure 54. MG3S Series - Downflow Options
Option
7
VIEW -D-
VIEW -F-
Plug
Plug
Plug
Option
10
VIEW -E-
Option
8
Plug
Plug
Option
11
Plug
Plug
MG3S SERIES DO
WNFLOW - 1 PIPE OPTIONS
PVC Te e
COMBUSTION
AIR
FLUE PIPE
FLUE PIPE
COMBUSTION
AIR
Rubber
Grommet
See
VIEW D for drain line positions See VIEW E for drain line positions
See VIEW F for drain line positions
See VIEW F for drain line positions
FLUE PIPE
Rubber
Grommet
COMBUSTION AIR
Plug
Flange
Flange
See VIEW E for drain line positions
FLUE PIPE
Plug
Flange
COMBUSTION AIR
See VIEW D for drain line positions
Rubber
Grommet
Rubber
Grommet
Rubber
Grommet
MG3S SERIES DO
WNFLOW - 2 PIPE OPTIONS
Plug
COMBUSTION
AIR
FLUE PIPE
Option
9
FLUE PIPE
Option
12
COMBUSTION AIR
Inline Drain
(Factory Supplied)
See NOTE 4
Collector Box Drain
(Factory Equipped)
See NOTE 2
Inline Drain
(Factory Supplied)
See NOTE 4
PVC Trap
PVC Te e
PVC Trap
PVC Te e
PVC Trap
PVC Te e
PVC Trap
Collector Box Drain
(Factory Equipped)
See NOTE 2
Collector Box Drain
(Factory Equipped)
See NOTE 2
Inline Drain
(Field Supplied)
See NOTES 2 & 3
X
See
NOTE 5
X
See
NOTE 5
X
See
NOTE 5
X
See
NOTE 5
Rubber
Grommet
Field Supplied
Drain Line Attached
to PVC Tr ap
(Do Not Tr ap)
Field Supplied
Drain Line Attached
to PVC Tr ap
(Do Not Tr ap)
1. See Accessories section (page 20) for optional PVC Tee configurations and drainage options.
2. Drain lines must be trapped with a J-Trap or field supplied loop. Traps may be positioned inside or outside
the cabinet. All drain lines must be routed externally from the cabinet.
3. Inline drain is required only if “X” is greater than 6 feet.
4. Tubing needs to be cut to length and attached during unit installation.
5. Horizontal piping from inducer to flue pipe must be sloped 1/4” per foot to ensure drainage to PVC trap.