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Form CRAH102.20-N1
Issue date: 03/11/2024
Section 1 - General information and safety
Introduction
The air handling unit (AHU) is manufactured to the
highest design and construction standards to ensure
high performance, reliability and adaptability to all
types of air handling installations.
This manual and any other document supplied with the
AHU are the property of Johnson Controls, which re-
serves all rights. This manual may not be reproduced,
in whole or in part, without prior written authorization
from an authorized Johnson Controls representative.
In addition, this manual:
• Suggests best working practices and procedures,
which are issued for guidance only, and they do
not take precedence over the above stated individ-
ual responsibility and/or local safety regulations.
• Contains all of the information required for cor-
rect installation and commissioning of the AHU,
together with operating and maintenance instruc-
tions.
• Contains detailed procedures, including installa-
tion, commissioning and maintenance tasks that
must only be performed by suitably trained and
qualified personnel.
Read the manual thoroughly before attempting to oper-
ate or service the AHU.
Rigging and lifting must be done by a professional
rigger in accordance with a written rigging and lifting
plan. The most appropriate rigging and lifting method
will depend on job specific factors, such as the rigging
equipment available and site needs. Therefore, a pro-
fessional rigger must determine the rigging and lifting
method to be used, and it is beyond the scope of this
manual to specify rigging and lifting details.
The manufacturer is not liable for any injury or damage
caused by incorrect installation, commissioning, oper-
ation, or maintenance resulting from a failure to follow
the procedures and instructions detailed in the manual.
Warranty
Johnson Controls warrants AHUs in accordance with
the Limited Warranty Engineered Systems Equipment
procedure. Refer to the Standard Limited Warranty
Engineered Systems Equipment (Form 50.05-NM2) for
more information.
Johnson Controls
Johnson Controls warrants all equipment and materi-
als against defects in workmanship and materials for a
period of 24 months from the date of shipment, unless
labor or 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
AHU was operated within the designed parameters
specified.
All warranty claims must specify the AHU model, se-
rial number, order number, and run hours/starts. Model
and serial number information is printed on the AHU
identification plate.
The AHU warranty is void if any modification to the
AHU is carried out without written approval from
Johnson Controls. For warranty purposes, the follow-
ing conditions must be satisfied:
• Only genuine YORK approved spare parts must
be used.
• All of the scheduled maintenance operations de-
tailed in this manual must be performed at the
specified times by suitably trained and qualified
personnel.
• Failure to satisfy any of these conditions auto-
matically voids the warranty. Refer to Standard
Limited Warranty Engineered Systems Equipment
(Form 50.05-NM2) for details.
Responsibility for safety
Every care has been taken in the design and manufac-
ture of the AHU to ensure compliance with the safety
requirements. However, the individual operating or
working on any equipment is primarily responsible for:
• Personal safety, safety of other personnel, and the
equipment.
• Correct utilization of the equipment in accordance
with the procedures detailed in this manual.
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