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Installation
WARNING
Improper Unit Lift!
Do not lift unit from top! Lift unit from lifting lugs only
located at bottom of unit. Test lift unit approximately 24
inches to verify proper center of gravity lift point. To
avoid dropping of unit, reposition lifting point if unit is
not level. Failure to properly lift unit could result in unit
dropping and possibly crushing operator/technician
which could result in death or serious injury and
possible equipment or property-only damage.
WARNING
Heavy Objects!
Ensure that all the lifting equipment used is properly
rated for the weight of the unit being lifted. Each of the
cables (chains or slings), hooks, and shackles used to
lift the unit must be capable of supporting the entire
weight of the unit. Lifting cables (chains or slings) may
not be of the same length. Adjust as necessary for even
unit lift. Other lifting arrangements could cause
equipment or property damage. Failure to follow
instructions above or properly lift unit could result in
unit dropping and possibly crushing operator/
technician which could result in death or serious injury.
WARNING
Hazardous Gases and Flammable Vapors!
Exposure to hazardous gases from fuel substances
have been shown to cause cancer, birth defects or other
reproductive harm. Improper installation, adjustment,
alteration, service or use of this product could cause
flammable mixtures or lead to excessive carbon
monoxide. To avoid hazardous gases and flammable
vapors follow proper installation and set up of this
product and all warnings as provided in this manual.
Failure to follow all instructions could result in death or
serious injury.
WARNING
Combustible Materials!
Maintain proper clearance between the unit heat
exchanger, vent surfaces and combustible materials.
Refer to unit nameplate and installation instructions for
proper clearances. Improper clearances could result in
combustible materials catching on fire. Failure to
maintain proper clearances could result in death or
serious injury or property damage.
CLCH-SVX08C-EN
Contractors' Responsibilities
Installing Contractor
•
Unpack the gas heat section and remove the skid.
•
Remove protective coverings.
•
Rig and/or move the section to the air handler location.
The contractor must provide slings, spreader bars,
clevis hooks, pins, etc. for rigging.
•
For outdoor gas heat sections, a level roof curb or
structural steel support system is required. If the gas
heat section is provided with an external piping
vestibule, no support is required for the vestibule.
•
For outdoor sections, install the flue stack. The flue
must be removed from the airstream before assembly.
Install the flue stack on the gas heat section before
assembling the gas heat section to the air handler.
•
Clear debris from combustion air inlets located on the
side or bottom of the gas heat section. Remove any
debris obstructing combustion air inlets.
•
In areas where snow drifts are higher than the bottom
of the vestibule, a hood or louver may have to be
installed for combustion air.
•
Assemble the gas heat section to the air-handling
system. Refer to CLCH-SVX07*-EN Performance
Climate Changer™ Air Handler Installation, Operation,
and Maintenance manual for specific assembly
instructions. This manual ships inside the supply fan
section of the air handler.
•
Penetrate the unit casing and connect the supply gas
line to the gas train.
•
For indoor gas heat sections, install a field-engineered
flue stack according to local codes.
Electrical and/or Controls Contractor
•
Provide power to the gas heat section. See
p. 19
for power requirements.
•
Provide a binary start–stop signal.
•
Provide an analog 2 to 10 Vdc modulating signal. A 2 to
10 Vdc interface module is installed as standard
equipment. A 4 to 20 mA interface module is available
and may have been installed on the unit for the control
signal in lieu of the 2 to 10 Vdc signal.
•
Provide an interlock in the start-stop signal circuit with
the air handler supply fan. This interlock must insure
the start-stop signal is interrupted to the gas heat
system if the supply fan is shut off. The gas heat system
must not operate without the supply fan providing
airflow.
•
All wiring must comply with applicable local and
National Electric Code (NEC) specifications.
Installation
"Wiring,"
13
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