WARNING
External wiring, unless specified as an optional connection in the manufacturer’s product line, is not
to be connected inside the control cabinet. Devices such as relays, switches, transducers and controls
and any external wiring must not be installed inside the micro panel. All wiring must be in accordance
with Johnson Controls’ published specifications and must be performed only by a qualified electrician.
Johnson Controls will NOT be responsible for damage/problems resulting from improper connections
to the controls or application of improper control signals. Failure to follow this warning will void the
manufacturer’s warranty and cause serious damage to property or personal injury.
Changeability of this document
In complying with Johnson Controls’ policy for continuous product improvement, the information
contained 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 Johnson Controls Knowledge Exchange website at https://
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, rigging, 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
41 Amended the section on Megging the motor.
54 Add the Smart sensor test item to the annual check list.
Associated literature
Manual description
Form
Number
Operation - Variable Speed Drive - TM Model 160.00-O1
Operation and Maintenance - Solid State Starter (Mod B) 160.00-O2
Operation - Floor Mounted MVSSS 160.00-O5.1
Operation - Unit Mounted MVSSS 160.00-O7
Installation – YK Unit 160.76-N1
Installation and Reassembly - YK Unit 160.76-N3
Operation Manual – OptiView
™
Control Center
160.76-O2
Wiring Diagram – Field Connections for YK Chiller (Style H) with OptiView
™
Control
Center and Unit-Mounted SSS or Remote Medium Voltage SSS, Medium Voltage
VSD, or Medium Voltage EMS
160.76-PW1
Model YK (Style H), R-134a and R-513A6
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