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 QuickLIT website at http://
cgproducts.johnsoncontrols.com.
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
10-12 Section on long-term storage added
Associated literature
Description Form number
Shipping Damage Claims 50.15-NM
Unit Installation Checklist and Request for Startup - YD Style D 160.79-CL1
Unit Startup Checklist - YD Style D 160.79-CL2
Engineering Guide - YD Style D Chillers 160.79-EG1
Operation and Maintenance - YD Style D 160.79-O3
Wiring Diagram - Field Connections YD Style D Chillers with OptiView Control
Center Water Pump Starters
160.79-PW1
Wiring Diagram - YD Style D Chillers with OptiView Control Center Field Control
Modifications
160.79-PW2
Wiring Diagram - YD Style D Chillers with MV Electro-Mech Starters 160.79-PW3
Wiring Diagram - YD Style D Chillers with Electromechanical Starter 160.79-PW4
Wiring Diagram - YD Style D Chillers with OptiView Control Center and Modbus
SSS/VSD
160.79-PW5
Centrifugal Liquid Chillers4
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