General Information; Operating Environment; Controls - Trane CDQ Installation & Maintenance Manual

CDQ-SVX01A-EN
General
Information
Operating
Environment
When considering the placement of
the air handlers, 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).

Controls

Wiring Sizes and
Connections
There are no penetrations into a
Climate Changer™ 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 air handlers 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.
All factory-mounted control systems
(controls that are factory-wired to a
unit controller or termination strip)
ordered without starters or variable-
frequency drives (VFDs) are
provided with line to 24 Vac control
transformers mounted and wired in
the auxiliary control panel. The
customer must provide 120 Vac
control power, 50/60 Hz, typically
3 amps for unit sizes 3 to 57 and
5 amps for unit sizes 66 to 120. 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
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