Operation; General Information - Trane LPC Install And Operation Instructions

Packaged Climate Changer
Control Options
Packaged Climate Changer units are
available with two different control
options:
• Control interface
• Tracer AH540
Control Interface
Model Number Digit 20 = 1
The control interface option contains a
disconnect switch, fan contactor, fused
transformer, and customer terminal strip.
Various end device options are available
factory-mounted on units with the control
interface. There are four binary end device
options:
1. low limit switch,
2. condensate overflow switch
3. fan status switch
4. filter status switch
Also there are three analog end device
options:
1. discharge air sensor
2. mixed air sensor
3. damper actuator
Tracer AH540 Controller
Model Number Digit 20 = 2 or 3
Tracer AH540 standard control features
include options available as factory-
configured or field-configured (using
Rover service software). For more
™
detailed information on the Tracer AH540,
refer to Trane publication,
CNT -SVX05B-EN.
The Tracer AH540 controller operates as a
stand-alone controller or it can communi-
cate as part of a Trane Integrated Com-
fort™ System (ICS). In the stand-alone
configuration, Tracer AH540 receives
operation commands from the:
• space temperature and discharge air
temperature for constant volume space
temperature control,
• discharge air temperature for constant
volume discharge air temperature
control, and
• both discharge air temperature and duct
static pressure for variable air volume
control.
For Tracer AH540 zone sensor options, see
the zone sensor section.
For optimal system performance, Pack-
aged Climate Changer units can operate
LPC-SVX01C-EN

Operation

as part of an Integrated Comfort™
System (ICS) controlled by Tracer
®
Summit . The controller is linked directly
to the Summit control panel via twisted
pair communication wire, requiring no
additional interface device (i.e., a com-
mand unit). The Trane ICS system can
monitor or override Tracer AH540 control
points. This includes such points as
temperature and output positions.
Wiring To Motor
(Location
Dependent on RH
or LH)
Disconnect
Switch
24-Volt
Transformer
(With Fused
Secondary)
Customer
Connection
Terminal
Strips
Figure O-GI-1. Packaged Climate Changer Control Panel Components
general
information
Rover Service Software
™
This windows-based software package
option allows field service personnel to
easily monitor, save, download, and
configure Tracer controllers through a
communication link from a portable
computer. When connected to the
communication link, Rover can view any
Tracer controller that is on the same
communication link.
Note: All control
components
shown are
standard on the
Control Interface
with the excepton
of the AH540
board.
Contactor
Wiring To
Sensors &
Actuators
AH540
Control Board
47