Unit Isolation And Leveling - Trane CGAM Installation & Operation Manual

Installation - Mechanical

Unit Isolation and Leveling

Mounting
Construct an isolated concrete pad for the unit or provide
concrete footings at each of the four unit mounting points.
Mount the unit directly to the concrete pads or footings.
Level the unit using the base rail as a reference.The unit
must be level within 1/4" over the entire length. Use shims
as necessary to level the unit.
Elastomeric Isolator Installation (optional)
Install the optional neoprene isolators at each mounting
location. Isolators are identified by part number and color.
1. Secure the isolators to the mounting surface, using the
mounting slots in the isolator base plate, as shown in
Figure 39. Do not fully tighten the isolator mounting
bolts at this time.
2. Align the mounting holes in the base of the unit, with
the threaded positioning pins on the top of isolators.
3. Lower the unit on to the isolators and secure the
isolator to the unit with a nut. Maximum isolator
deflection should be approximately 1/4" .
4. Level the unit carefully. Refer to "Leveling" . Fully
tighten the isolator mounting bolts.
Figure 39. CGAM Elastomeric isolator
B NC TAP
D Dia 2 Holes
W
C
L
Mounting molded in Neoprene
A
H
H
« B » Dia
36
L
C
1/2-13NC-2B
Mounting molded in Neoprene
A
E
E
RP/RDP
« M »
Table 9. CGAM elastomeric rated isolator
Max Load
Ext (lbs)
57 250
58 525
59 750
60 1100
61 1500
62 2250
63 3000
64 4000
Ext A B
57
58
2.5 .5
59
60
61
62
3.0 .5
63
64
Seismically Rated Isolator Installation
Seismically rated isolators are required for OSHPD
seismically rated units, and optional for IBC seismically
rated units.
Isolators are identified by part number and color. See
Table 10, p. 36. For dimensions, see
Figure 41, p.
1/2-13
isolators at each mounting location .
W
Table 10. CGAM seismically rated isolator
D
Model
MSSH-1E-530N
H MSSH-1E-825N
H
MSSH-1E-1000
M2SS-1E-800
M2SS-1E-1060N
M2SS-1E-1300
M2SS-1E-1650N
M2SS-1E-2000
M2SS-1E-2400N
Color Deflection (in)
Black
Red
0.50
Green
Gray
Brown
Red
0.50
Green
Gray
C D E H
4.12 .56 .25 2.88
5.0 .56 .38 2.75
Figure 40
37. Install the optional seismically rated
Rated Rated Spring
Load Deflection Rate
(lbs) (in) (lbs/in) Color Code
530 1.17 453
825 1.07 769
1000 1.00 1000
800 1.32 606
1060 1.17 906
1300 1.05 1240
1650 1.07 1538
2000 1.00 2000
2400 1.04 2300
Type
RDP3-WR
RDP4-WR
L M W
5.5 1.13 3.38
1.60
6.25 4.63
±.25
and
Black/Dk Blue
Red/ Dk Blue
Tan
Black
Black/Dk Blue
Red
Red/Dk Blue
Tan
Tan/Dk Blue
CG-SVX17E-EN