Installation Preparation; Unit Vibration Isolator Option; Procedure - Trane Technologies IntelliPak Signature SCWF Installation, Operation And Maintenance Manual

Figure 17. Gravity block location and dimensions for 90 to 110 ton units

Installation Preparation

Before installing the unit, perform the following procedures
to ensure proper unit operation.
1. Position the unit and skid assembly in its final location.
2. Test lift the unit to determine exact unit balance and
stability before hoisting it to the installation location.
See "Unit Handling," p. 30
procedures and cautions.
3. Remove the skids from under the unit. See
19. Refer to the "Skid Removal" section. If you find
internal damage, file a claim immediately to the
delivering carrier.
4. Remove the protective shipping covers from the unit.
5. Verify isolators are properly tightened for operation.
See "Unit Vibration Isolator Option," p.
6. Tighten compressor isolator mounting bolts. Torque to
18 ft/lbs. (plus/minus 2 ft/Lbs.)

Unit Vibration Isolator Option

Important: Vibration isolation is not necessary for the unit
since the factory internally isolates the fan and
compressors, thus creating double isolation.
Trane strongly recommends that you consult a
vibration specialist when considering double
isolation. In general, Trane does not
recommend double-isolation.
SCXF-SVX01T-EN
for proper rigging
Figure 3, p.
31.
If job requirements dictate unit isolators, use a housed-
spring isolator with a locating pin. Factory-provided unit
isolators are type CP and indicate the spring number on the
outer housing. See . Set the spring-type vibration isolators
in position before completing electrical, piping, or duct
connections. The 20-38 ton units require four isolators per
unit, and the 42-80 ton units require six isolators per unit.
Reference the isolator placement sheet that ships with the
isolators to indicate proper placement.
Unit Isolator Installation Procedure
Use the following procedure to install isolators:
1. Position the isolators under the unit base referring to
the isolator placement sheet that ships with the unit
isolators. Lift one end of the unit at a time to position
the isolators. Fasten the isolators to the floor using
anchor bolts.
2. Level the unit by adjusting the isolator heights. Unit
weight may cause the upper housing of the spring
isolators to rest on the lower housing. Maintain
clearances between 1/4 and 1/2". To increase the
clearance, lift the unit off the isolator and turn the
leveling bolt counterclockwise. Verify that the unit is
level and the housing clearances are correct. The
maximum allowable difference between isolator heights
is 1/4". Shim as required under the isolators.
Note: The unit is equipped with a positively sloped drain
pan to help indoor air quality (IAQ) and does not
require one corner of the unit to be pitched.
Installation - Mechanical
31