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 and 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.
Wiring warning
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.
Refrigerant warning
WARNING
Working with chiller vessels which are designed to contain contents under pressure must only be
conducted by fully qualified technicians who have been certified in accordance with EPA Section 608 of
the Clean Air Act requirements for the US or equivalently the Federal Halocarbon Regulations and the
Refrigerant Code of Practice for Canada. This equipment is only intended for installation in locations
that are not accessible to the general public. Further, this equipment is not intended for use by persons
(including children) with reduced physical, sensory or mental capabilities, or lack of experience and
knowledge. Refrigerant R-454B is classified as an A2L refrigerant and must be handled in accordance
with all governing regulations. Failure to meet this requirement can result in damage to equipment,
release of refrigerant into the environment, contamination of the operating space for the equipment
and pose a risk of personal injury or death. It is the responsibility of any service technician or operator
to adhere to these requirements. See 160.00-AD10 for greater details regarding the application and use
of A2L refrigerants.
YMAE Air-Cooled Inverter Scroll Chiller and Heat Pump8
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