Warranty
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.
Johnson Controls warrants YHAU-CGN/H-CXR(M) chiller-heaters in accordance with the Limited
Warranty Engineered Systems Equipment Procedure. Refer to the Limited Warranty (Form 50.05-
NM2).
Johnson Controls warrants all equipment and materials against defects in workmanship and
materials for a period of 18 months from the date of shipment or 12 months from the date of start-
up, whichever comes first, unless extended warranty has been purchased as part of the contract.
The warranty is limited to parts only replacement and shipping of any faulty part, or subassembly,
which has failed due to defects in workmanship and materials. All claims must be supported by
evidence that the failure has occurred within the warranty period, and that the unit was operated
within the designed parameters specified.
All warranty claims must specify the unit model, serial number, order number, and run hours/
starts. Model and serial number information is printed on the unit identification plate.
The unit warranty will be void if any modification to the unit is carried out without prior written
approval from Johnson Controls. For warranty purposes, the following conditions must be satisfied:
• The initial start of the unit must be carried out by trained personnel from an authorized Johnson
Controls Field Service Office.
• Only genuine Johnson Controls approved spare parts, oils, solutions, chemicals, and refrigerants
must be used.
• All of the scheduled maintenance operations detailed in this manual must be performed at the
specified times by suitably trained and qualified personnel.
Failure to satisfy any of these conditions will automatically void the warranty. Refer to
Limited
Warranty (Form 50.05-NM2)
for complete details.
Quality assurance
Units comply with the following directives:
• GB/T 18431-2014 Direct Fired Lithium Bromide Absorption Water Chiller-Heater
• UL 1995 2011 Ed.4 + R:03Oct2014 Standard for Safety Heating and Cooling Equipment
• UL 508A Industrial Control panel
• NFPA70 National Electrical Code
• NFPA79 Electrical Standard for Industrial Machinery
9
Model YHAU-CGN/H-CXR(M)Double Effect Direct Fired Small Absorption Chiller-Heater
