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JOHNSON CONTROLS
FORM 150.68-ICOM1
ISSUE DATE: 10/15/2020
The Control Cabinet contains lethal AC and DC voltages. Before performing service inside
the cabinet, remove the AC supply feeding the chiller.
The DC Voltage on the DC Bus will take 5 minutes to bleed off, after
AC power is removed. Always check the DC Bus Voltage with a
Voltmeter to assure the capacitor charge has bled off before working
on the system.
NEVER short out the DC Bus to discharge the filter capacitors.
NEVER place loose tools, debris, or any objects inside the Control Panel Cabinet.
NEVER allow the Control Panel Cabinet doors to remain open if there is a potential for rain
to enter the panel. Keep doors closed and assure all latches are engaged on each door
unless the unit is being serviced.
WARNING!
CHANGEABILITY OF THIS DOCUMENT
In complying with Johnson Controls’ policy for con-
tinuous product improvement, the information con-
tained in this document is subject to change without
notice. Johnson Controls makes no commitment to
update or provide current information automatically
to the manual or product owner. Updated manuals, if
applicable, can be obtained by contacting the nearest
Johnson Controls Service office or accessing the John-
son Controls Knowledge Exchange website at
docs.johnsoncontrols.com/chillers/
.
It is the responsibility of rigging, lifting, and operating/
service personnel to verify the applicability of these
documents to the equipment. If there is any question
regarding the applicability of these documents, rig-
ging, lifting, and operating/service personnel should
verify whether the equipment has been modified and
if current literature is available from the owner of the
equipment prior to performing any work on the chiller.
REVISION NOTES
Revisions made to this document are indicated in the following table. These revisions are to technical information,
and any other changes in spelling, grammar, or formatting are not included.
AFFECTED PAGES
DESCRIPTION
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Conditioned Based Maintenance program information added
CONDITIONED BASED MAINTENANCE
Traditional chiller maintenance is based upon assumed
and generalized conditions. In lieu of the traditional
maintenance program, a Johnson Controls YORK
Conditioned Based Maintenance (CBM) program can
be substituted. This CBM service plan is built around
the specific needs for the chiller, operating conditions,
and annualized impact realized by the chiller. Your lo-
cal Johnson Controls Branch can propose a customized
Planned Service Agreement that leverages real time
and historical data, delivering performance reporting,
corrective actions required and data enabled guidance
for optimal operation and lifecycle assurance. The pro-
gram will include fault detection diagnostics, operation
code statistics, performance based algorithms and ad-
vance rules based rationale delivered by the Johnson
Controls Connected Equipment Portal.
Summary of Contents for YLPA 0115SE
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