Trane Tracer AH540 - Page 129

Index
CNT-SVX05B-EN 119
morning warm-up, 47
occupied mode, 41
operation based on effective
heat/cool output, 101
sequence of operations, 31
setpoint adjustment, 36
setpoint arbitration, 36
Space Comfort Controller (SCC)
profile, 31
Space Comfort Controller (SCC)
profile network variable
inputs, 109
Space Comfort Controller (SCC)
profile network variable
outputs, 110
unoccupied mode, 42
Space Temperature Failure
diagnostic, 18, 91, 92
specifications
agency conformance, 7
dimensions, 7
operating environment, 7
power requirements, 7
storage environment, 7
staged electric heat
configuration, 74
DX cooling, 65
sequencer configuration, 81
using binary outputs, 61
using sequencer, 62
stand-alone operation, 3
stand-alone operator display, 9
Status LED, 87
supply fan. See fan (supply).
T
termination board drawing
AH540, 5
AH541, 6
Test button, 83
thermistor values, hard-wired 10
kohms, 106
thermostat. See zone sensor.
time and date, setting up on
operator display, 12
time clock, 11
timed override, 29, 47
On and Cancel requests, 18
timer
configuration, 81
minimum On/Off, 70
minimum On/Off for DX split-
system cooling, 67
troubleshooting
binary output LEDs, 86
Comm LED, 88
DX cooling binary outputs do not
energize, 98
electric heat binary outputs do not
energize, 99
fans do not energize, 93
manual output test, 84
outdoor air damper stays closed,
97
outdoor air damper stays open, 96
required inputs for unit operation,
88
Service LED, 87
Service Pin button, 86
Status LED, 87
Test button, 83
valves stay closed, 95
valves stay open, 94
two-pipe changeover, 16, 53, 60
U
unit configuration options, table of,
1, 2
unit protection, strategies for, 70
Unit Shutdown diagnostic, 25, 91
unit type configuration, 73
universal analog input (IN13), 20
unoccupied mode
discharge air temperature control,
42
space temperature control, 42
V
valves
freeze avoidance, 52
operation, 52
override water, 72
troubleshooting, 94, 95
valves, three-way
entering water temperature
sampling, 53
valves, two-way
entering water temperature
sampling, 54
variable-air-volume
air-handler configuration, 73
supply fan operation, 51
Version 1 and 2
hardware and firmware
differences, 1
W
warm-up
daytime, 48
morning, 47
water valve override, 72
wiring connections for zone sensor,
29
wiring stand-alone operator display,
9
Z
zone sensor
communication jack, 29
fan (supply) mode switch, 28
hard-wired setpoint adjustment,
106
inputs, 28
On/Cancel buttons, 18, 23, 29, 47
Service Pin message, 29
setpoint adjustment, 28
setpoint thumbwheel, 36
space temperature measuring, 28
timed override option, 47
wiring connections, 29