General
Read all sections of this manual and keep the manual for
future reference.
WARNING: Cancer and Reproductive Harm –
www.P65Warnings.ca.gov.
This installation manual covers the following:
• Installation of XAF and XAH coils with furnaces or
JMET and JMVT modular air handlers
• Installation of XAU coils with 80+% AFUE furnaces
and 90+% AFUE furnaces
XAF, XAH, and XAU coils have sweat connect fittings. The
coils are shipped with a low psi nitrogen charge. See
Figure 1 and Figure 2.
Certification
Safety
This is a safety alert symbol. When you see this
symbol on labels or in manuals, be alert to the
potential for personal injury.
Understand and pay particular attention to the signal
words DANGER, WARNING, or CAUTION.
DANGER indicates an imminently hazardous situation,
which, if not avoided, will result in death or serious
injury.
WARNING indicates a potentially hazardous situation,
which, if not avoided, could result in death or serious
injury.
CAUTION indicates a potentially hazardous situation,
which, if not avoided may result in minor or moderate
injury. It is also used to alert against unsafe practices and
hazards involving only property damage.
WARNING
Improper installation may create a condition where the
operation of the product could cause personal injury
or property damage. Improper installation, adjustment,
alteration, service, or maintenance can cause injury or
property damage. Refer to this manual for assistance.
For additional information, consult a qualified installer
or service agency.
CAUTION
This product must be installed in strict compliance
with the enclosed installation instructions and any
applicable local, state, and national codes including
but not limited to building, electrical, and mechanical
codes.
WARNING
The furnace area must not be used as a broom
closet or for any other storage purposes, as a fire
hazard may be created. Never store items such as the
following on, near, or in contact with the furnace.
1. Spray or aerosol cans, rags, brooms, dust mops,
vacuum cleaners, or other cleaning tools
2. Soap powders, bleaches, waxes or other cleaning
compounds; plastic items or containers; gasoline,
kerosene, cigarette lighter fluid, dry cleaning fluids or
other volatile fluid
3. Paint thinners and other painting compounds
4. Paper bags, boxes, or other paper products
Never operate the furnace with the blower door
removed. To do so could result in serious personal
injury and/or equipment damage.
WARNING
This appliance is not intended for use by persons
(including children) with reduced physical, sensory,
or mental capabilities, or lack of experience and
knowledge, unless they have been given supervision
or instruction concerning use of the appliance by a
person responsible for their safety.
Children must be supervised to ensure that they do
not play with the appliance.
Installation Manual: XAF, XAH, and XAU Series - Full Cased and Uncased Coils for Cooling and Heat Pumps 5
Johnson Controls Ducted Systems
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