Important Notice; Product Inspection Upon Arrival - York DHM42CMB21S Service Manual

Important Notice

● Johnson Controls, Inc. pursues a policy of continuing improvement in design and performance in its
products. As such, Johnson Controls, Inc. reserves the right to make changes at any time without
prior notice.
● Johnson Controls, Inc. cannot anticipate every possible circumstance that might involve a potential hazard.
● This inverter air conditioning unit is designed for standard air conditioning applications only. Do not use
this unit for anything other than the purposes for which it was intended for.
● The installer and system specialist shall safeguard against leakage in accordance with local pipefitter
and electrical codes. The following standards may be applicable, if local regulations are not available.
International Organization for Standardization: (ISO 5149 or European Standard, EN 378). No part of
this manual may be reproduced in any way without the expressed written consent of Johnson Controls,
Inc.
● This inverter-driven (cooling or heat pump) air conditioning unit will be operated and serviced in the
United States of America and comes with all required Safety, Danger, and Caution, warnings.
● If you have questions, please contact your distributor or dealer.
● This manual provides common descriptions, basic and advanced information to maintain and service
this inverter-driven (cooling or heat pump) air conditioning unit which you operate, as well for other
models.
● This inverter-driven (cooling or heat pump) air conditioning unit has been designed for a specific
temperature range. For optimum performance and long life, operate this unit within range limits.
● This manual should be considered as a permanent part of the air conditioning equipment and should
remain with the air conditioning equipment.

Product Inspection upon Arrival

1. Upon receiving this product, inspect it for any damages incurred in transit. Claims for damage, either
apparent or concealed, should be filed immediately with the shipping company.
2. Check the model number, electrical characteristics (power supply, voltage, and frequency rating), and
any accessories to determine if they agree with the purchase order.
3. The standard utilization for this unit is explained in these instructions. Use of this equipment for
purposes other than what it designed for is not recommended.
4. Please contact your local agent or contractor as any issues involving installation, performance, or
maintenance arise. Liability does not cover defects originating from unauthorized modifications
performed by a customer without the written consent of Johnson Controls, Inc. Performing any
mechanical alterations on this product without the consent of the manufacturer will render your
warranty null and void.
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