12
CLCH-SVX014B-EN
Installation
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.
•
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 Wiring
chapter for power requirements.
•
Provide a binary start–stop signal.
•
Provide an analog 0 to 10 Vdc modulating signal. A 0 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 0 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.
•
For VAV units, provide temperature sensors for
entering and leaving air in gas heat section.
WARNING
Improper Unit Lift!
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. 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.
WARNING
Heavy Objects!
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. 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.
WARNING
Hazardous Gases and Flammable Vapors!
Failure to follow all instructions could result in death or
serious injury. 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.
WARNING
Combustible Materials!
Failure to maintain proper clearances could result in
death or serious injury or property damage. 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.
Summary of Contents for CSA004
Page 24: ...24 CLCH SVX014B EN Wiring Diagrams Figure 12 Typical wiring diagram for 5 1 turndown heater ...
Page 25: ...Wiring Diagrams CLCH SVX014B EN 25 Figure 13 Typical wiring diagram for 10 1 turndown heater ...
Page 26: ...Wiring Diagrams 26 CLCH SVX014B EN Figure 14 Typical wiring diagram for 20 1 turndown heater ...
