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CAH-SVX01A-EN 5
General
Information
Operating
Environment
When considering the placement of
the Custom Climate Changer air
handler, it is important to consider
the operating environment. The
acceptable ambient temperature
range for unit operation is -40ºF to
140ºF (-40ºC to 60ºC).
For heating applications, a special
motor may be required to withstand
the higher temperatures. Motors
with Class B insulation are
acceptable for ambient
temperatures up to 104º F, while
motors with Class F insulation can
withstand ambient temperatures to
+140º F (60º C).
For the units furnished with gas
furnaces, the heating demands
require a special motor to withstand
the higher temperatures. These
motors are furnished with Class “H”
insulation to withstand this rigorous
duty.
Note: The customer should provide
adequate freeze protection for the
coils.
Controls
Wiring Sizes and
Connections
As a standard, there are no
penetrations into the Custom air
handler for any field-provided wiring
or device. Before installation,
consider overall unit serviceability
and accessibility before mounting,
running wires (power), making
cabinet penetrations, or mounting
any components to the module
cabinet.
Wiring to the unit must be provided
by the installer and must comply
with all national and local electrical
codes. The fan motor nameplate
includes a wiring diagram. If there
are any questions concerning the
wiring of the motor, be sure to write
down the information from the
motor nameplate and contact your
local fan motor manufacturer
representative for assistance.
Factory-Mounted Controls
Small items that cannot be factory
mounted will ship inside the control
enclosures. Larger items may ship
inside the fan module.
Note: All control valves ship directly
to the “ship-to address” from the
vendor unless another address is
given on the Trane sales order.
Depending on job requirements, the
customer may need to provide
120 Vac control power. A dedicated
15-amp circuit is recommended.
Factory-mounted control systems
ordered with factory-mounted
starters or VFDs are supplied with
line to 24 Vac control transformers.
No additional power wiring is
required.
For a more in-depth understanding
of controls, refer to the following
manuals:
• For factory-configured AH540/
AH541 controllers,
CNT-SVX05B-EN
• For programmable MP580
controllers, CNT-SVP01A-EN
• For hardware installation,
CNT-SVN01A-EN
• For Danfoss VFD,
TR1-SVX10A-EN
• For universal programmable
control modules (UPCMs):
–EMTX-PG-5
– EMTX-IN-22A
Custom air handlers and/or field-
installed accessories that must be
stored for a period of time prior to being
installed must be protected from the
elements. All controllers and electrical/
electronic components should be
stored in conditions of -20 to 120°F and
5- to 95-percent relative humidity non-
condensing. Electrical components are
not moisture-tolerant.
Note: The warranty will not cover
damage to the unit or controls due
to negligence during storage. A
controlled indoor environment is
recommended for proper storage.
For further storage considerations,
refer to “Job Site Storage
Recommendations” on page 7.