Trane LPC Install And Operation Instructions page 48

Figure O-GI-2. Tracer AH540 Control Board
Figure O-GI-4. Model number digit 37 = 2
Zone sensor with Farenheit setpoint
knob,on/cancel, and communication jack.
Figure O-GI-7 . Variable frequency drive
(VFD) option
48
Operation
Tracer AH540 Zone Sensor
Options
Zone sensors are available wall mounted
for design flexibility. Wall-mounted zone
sensors have an internal thermistor and
operate on 24 VAC. Zone sensor options
have a zone sensor setpoint adjustment
knob, communication jack, and service pin
message request. Also, an option is
available without a setpoint knob. See
Figures O-G1-3 through O-GI-5.
The zone sensor module is capable of
transmitting the following information to
the controller:
• Timed override on request
• Zone setpoint
• Current zone temperature
• Fan mode selection
Figure O-GI-5. Model number digit 37 = 4
Table O-GI-1. Tracer AH540 Features and Control Modes
space temp.
function control
fan control on/off
duct static pressure
hydronic cooling X
hydronic heating X
steam heat X
face & bypass heating X
ventilation control X
economizer damper X
warmup functions X
mixed air temperature control X
exhaust fan (on/off) X
DX cooling X
electric heat X
dehumidification X
two-pipe changeover X
general
information
Figure O-GI-3. Model number digit 37 = 1
Zone sensor with off/auto fan speed
switch, Farenheit setpoint knob,on/cancel,
and communication jack.
Figure O-GI-6. Model number digit 37 =
digital zone sensor option
discharge air
temperature control
variable or on/off
X
X
X
X
X
X
X
X
X
X
X
X
LPC-SVX01C-EN