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•
The condenser fans are propeller type and must not be used with ductwork, filters, or other
impediments to airflow in the condenser air stream.
•
When obstructions to airflow exist, they must not add more than 0.1 in. (2.54 mm) external
static pressure.
•
To protect against corrosive environments, order the units with cured epoxy-coating on the
condenser microchannel. Epoxy-coated coils must be used with any units being installed at the
seashore, or where salt spray can hit the units, where acid rain is prevalent, and when paired
with adiabatic cooling solutions.
•
At installations where winter operation and snow accumulations are expected, additional
elevation must be provided to ensure normal condenser airflow.
•
Avoid locations near windows or structures where normal operating sounds made by the unit
may be objectionable.
•
Provide adequate space for tubes to be removed from the evaporator. For clearances, contact
your nearest Johnson Controls sales office.
Rig the unit to the final location
Rig the unit to its final location following the instructions in the
Leveling the chiller
Make sure that chiller base rail remains straight along the long axis of the chiller during the leveling
process. This can be accomplished with the use of a string along the base rail. Any bowing of the
chiller frame can lead to refrigerant line failures or other component fatigue issues over time.
Check the longitudinal alignment of the unit by placing a level on the base rail of the chiller
at several locations after the base rail has been verified that it is straight and true. Check the
transverse level by placing a level on the base rail at the VSD and opposite ends of the chiller base
frame.
Adhere to all isolator type installation requirements before setting the chiller in the final location.
Certain steps are required before placing the chiller on some isolator types. See the following
section for these requirements.
Anchor the chiller to the final location
See the following mounting options before moving the chiller to its final location. When spring
isolators are used, the unit must be supported in a safe manner before anchoring the chiller. Rig
the unit to its final location by the means as defined in the
Note: The following dimensions are approximate values and must be verified on receipt of the
chiller.
Figure 32: Isolator locations for YVAM chillers with up to 20 fans
YVAM Air-Cooled Centrifugal Liquid Chiller
Rigging
section.
Rigging
section.
27
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