Rail Mounted Units; Slab Mounted Units - Modine MDB Série Manuel D'installation Et De Maintenance

mountinG oPtions
rail-mounted units
1. If mounting on a roof, the roof structure must be
adequately designed to support the live weight load of the
unit and rail mounting support structure.
2. To insure longevity and integrity of the section joints, use
two continuous rails for the length of the unit (in direction
of airflow), including the V-bank filter section if equipped.
3. The unit must be level in a horizontal position.
4. If there is an inlet hood, that must be supported as shown
in the section, "Inlet Accessory Support" on page 6.
5. If there is an inlet damper, that does not require separate
support.
See Figures 5.1 and 5.2 for recommended mounting methods.
Figure 5.1 - unit rail supports (size 110-118)
12"
TYPICAL
2" MIN.
Figure 5.2 - unit rail supports (size 120-230)
12"
TYPICAL
2" MIN.
3-1/2" FROM CASING
TO THE CENTER OF RAIL
7-500.10
slab-mounted units
1. For ground level installation of the unit, prepare a level
concrete slab at least 4" thick, which extends 6 inches
beyond the unit on an adequate footing and a generous
bed of gravel for proper drainage. The slab should include
3/4" threaded anchor bolts spaced according to Figure 5.3
for securing the unit in place. The anchor bolts should
extend at least 4-1/2" above the surface of the slab to
allow clearance for mounting washers, bolts, and nuts (by
others).
2. The unit must be level in a horizontal position.
3. If there is an inlet hood, that must be supported as shown
in Figure 5.3 and section, "Inlet Accessory Support" on
page 6.
4. If there is a V-bank filter section, it includes supports that
allow it to be mounted level with the main unit.
5. If there is an inlet damper, that does not require separate
support.
Figure 5.3 - slab-mounting anchor Bolt spacing
B
CONCRETE SLAB
(4" THICK MINIMUM)
A
INLET
HOOD SUPPORT
(BY MODINE OR OTHERS)
unit size a
110/112 45" 68"
115/118 54" 79"
120-124 81" 93"
125-130 95" 107"
220/222 133" 93"
225/230 157" 107"
B
5