Checks And Adjustments - International comfort products C9MPX Installation Instructions Manual

Exploded View of Sub−Base for
Figure 47
Furnace ONLY
T
Plenum
H
K
P
2"
L
(50.8mm)
A
5. Position furnace or coil cabinet and furnace on subbase so it
aligns between the locating tabs.
Figure 49
Setting the Subbase
Furnace
Installation of
Combustible
Floor Base
This subbase for combustible floors has been designed so that the
height of the subbase raises the downflow coil off the floor to allow
easy installation of the condensate drain. See Figure 50.

Checks and Adjustments

Verify the input rate of the furnace.
NOTE:
WARNING
!
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
Turn OFF gas at shut off before connecting
manometer.
Startup
NOTE: Refer to the start−up procedures in the "User's Information
Manual" or to the "Operating Instructions Label" on the furnace.
440 01 1051 02
S
A = 4 1/4" (108mm) Minimum
clearance from back of hole
to wall or other obstruction.
J
2" (50.8mm)
R
1" (25.4mm)
M
N
Hole in
Floor
25-20-46
Wood Floor
Plenum
Specifications are subject to change without notice.
Figure 48
Figure 50
25−20−46a
A 3" (76.2mm) clearance is required on the right side of the furnace
in order to run the copper or plastic tubing for the condensate drain
line.
!
FIRE OR EXPLOSION HAZARD
Failure to follow this warning could result in
personal injury, death, and/or property damage.
If any sparks, odors or unusual noises occur,
immediately shut OFF power to furnace. Check for
wiring errors or obstruction to blower.
Gas Supply Pressure
Gas supply pressure should be within minimum and maximum
values listed on rating plate (minimum and maximum pressures,
refer to Table 5). Pressures are usually set by gas suppliers.
Manifold Gas Pressure Adjustment
NOTE: Make adjustment to manifold pressure with burners
operating.
Exploded View of Base for
Downflow Cased Coil
Condensate Line Raised by Base
WARNING
" (63.5mm)
1
2 /
2
" (38.1mm)
1
1 /
2
25−20−52
43