Carrier 33ZCT58SPT User manual

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-383 Printed in U.S.A. Form 33ZC-3SO Pg 1 7-01 Replaces: 33ZC-2SO
Book 1 4
Ta b 1 1 a 1 3 a
Owner’s Manual
Part Number 33ZCT58SPT
GENERAL
Carrier’s T58 communicating room sensors are wall-
mounted, low-voltage sensors which maintain room tempera-
ture by communicating with the controller that operates the
HVAC (heating, cooling and ventilation) equipment. The T58
sensor provides a custom liquid crystal display (LCD)
and 4 push-buttons allowing user interface and feedback
capabilities.
During power interruption, the T58 sensor stores config-
uration parameters in non-volatile memory, allowing coor-
dinated control to resume after power is restored. The T58
sensor utilizes universal graphical icons on the LCD.
OPERATION
Sensor Display — The sensor’s LCD is located in the
top center of the sensor. See Fig. 1. The T58 sensor can display
the following information on the screen:
• Current space temperature (default LCD display)
• Unit mode of attached device
• Heating or cooling set point value — read from attached
device
• Outside air temperature — relayed from the connected
Carrier Network
• Current Fan mode — read from attached device
• Indication when time schedule override is in effect
• Set of error indications
Sensor Programming Buttons and Opera-
tion — The T58 sensor has programming buttons which are
used to change the set points of the equipment, change the fan
mode, and override schedules. The programming buttons are
located on the sensor cover. The programming buttons are:
FAN, MODE, INC and DEC. See Fig. 1.
The INC and DEC buttons are used to change the current
temperature set point and to scroll through programming
options. The INC and DEC buttons are on the outside of the
sensor.
READ CURRENT OPERATING MODE — Perform the
following to read the current operating mode of the attached
device:
1. Press the MODE button. The present operating mode
condition will be read in from the attached device. A
graphical icon will represent the operating mode. See
Fig. 2. A list of possible modes with the accompanying
icons for different attached devices is shown in
Tables 1-3. The current operating mode icon will be dis-
played for ten seconds then disappear, denoting the end of
the operation.
2. If there is no response from the CCN communications
request, then an error code of “E3” will be shown in the
numeric portion of the LCD area. Any error indication
will terminate after 5 seconds, and return to the default
Space Temperature display.
NOTE: This is a read only mode. Current operating mode
cannot be changed.
DISPLAY SPACE TEMPERATURE — The default display
of the T58 sensor shows the sensed temperature from its on-
board thermistor, which represents the Space or Room Air
Temperature. Any configured “trim” from the attached device
will not have an effect on this temperature value. This value is
updated every second by the T58 software and is sent out to
the attached device every minute or whenever its value
changes by .3 F. Temperature values will be stored with a pre-
cision of .1 F. The Space Temperature value will also be sent to
the attached device during any power on reset operation. If the
on-board thermistor fails, then the LCD will display a value of
“E1”, indicating that the thermistor is no longer working. The
T58 sensor will continue to try to read the thermistor every
second.
IMPORTANT: Read entire instructions before program-
ming the sensor.
T58 Communicating
Room Sensor
MODE
FAN
INC
DEC
Fig. 1 — T58 Sensor

2
FAN COIL CONTROLLER — To read the current fan
speed:
To enter fan speed selection, press the FAN button. The
present fan position will be read in from the attached device. If
the fan is Off, then the “Fan” icon with no curved lines will be
displayed. If the fan is On, then the graphic will show one set
of curved lines around the fan to represent Low Speed, two
lines for Medium Speed, and three lines for High Speed. See
Fig. 2.
To change Fan mode when User Control mode is enabled:
1. Press the INC or DEC buttons to cycle through the vari-
ous Fan modes until reaching the desired fan setting. The
modes will be displayed in the following wraparound
order — Off, Low, Medium, High, and Auto. Auto mode
will be indicated by a blinking “fan” icon with no curved
lines. Auto mode can be set by the T58 sensor, but when
reading the Fan mode, only the current fan speed or Off
will be displayed.
2. Press the FAN button again to terminate the operation and
send the new Fan mode value to the attached device. The
selected “fan” icon will also disappear from view denot-
ing the end of the operation.
NOTE: Some fans may only be single-speed (Off/On) or
two-speed (Low/High). In either of those cases, if the de-
sired fan selection is higher than the top selection, the fan
will be driven to its highest setting. As an example, if a
one-speed fan is commanded to go to Medium or High
Speed, then that command will be interpreted to turn on
the fan. If a two-speed fan is commanded to go to Medi-
um or High Speed, then that command will be interpreted
to drive the fan to its highest possible speed setting.
AIR TERMINAL CONTROLLER AND ROOFTOP
CONTROLLER — To read the current fan speed:
To enter fan speed selection, press the FAN button. The present
Fan mode is read in from the attached device. If the fan is OFF,
then the “fan” icon without curved lines will be displayed. If
the fan is On the fan graphic and the first set of bars will be
displayed.
To change Fan mode when User Control mode is enabled:
1. Press the INC or DEC button to cycle between Fan On,
Fan Off, or Auto. A blinking “fan” icon indicates Auto
mode (Fan only — no curved lines).
2. Press the FAN button again to complete the operation and
send the new Fan mode to the attached device. If Auto
mode is selected, an auto command for the fan will be
sent to the attached device. The selected FAN icon
will also disappear from view denoting the end of the
operation.
NOTE: If no button is pushed for 10 seconds after initiat-
ing FAN mode, the “fan” icon will disappear and no
change will be enacted on the fan speed.
NOTE: If there is no attached device then an error code of
“E2” will be displayed in the numeric portion of the LCD
area.
Read/Modify Current Set Point Value —
The INC and DEC buttons are used to read or modify the con-
figured occupied set points of the attached device. This feature
is the same for all controllers.
TO READ CURRENT SET POINTVALUE — Press the INC
or DEC button once. This will display the set point that will be
adjusted. Pressing INC will make the space warmer and press-
ing DEC will make it cooler. See Table 4.
TO MODIFY CURRENT SET POINT VALUE (If User
Control Mode is Enabled) — Once INC or DEC is pressed
the “temperature bulb” icon will appear. This indicates the
onset of “Modify Set Point” mode. The Inc or Dec button can
be used to adjust the displayed set point. The heat set point will
have an allowable range of 40 F to the heat set point Hi Limit
configured in installer option 9. The cool set point range goes
from the cool set point to the limit configured in installer
option (range 10 to 99 F). If the read set point exceeds the con-
figured limit, it will be used as the limit. Wraparound is not
enabled for this function. A difference of at least 2 F will be
maintained between the occupied heating and cooling set
points. If one set point is adjusted to within less than 2 F of the
other, the other set point will also be adjusted to maintain the
2 F separation. The appropriate icon for heat (“sunshine” icon)
or cool (“snowflake” icon) will blink while adjusting the set
point.
• When the desired set point is reached, press the MODE
button to cause the new set point value to be saved in the
attached device. At the same time, the LCD display will
return to the default Space Temperature display, and the
“set point” icon will disappear.
• If the attached device is unoccupied, the T58 will also
send a command to initiate a Time Schedule Override in
the attached device. This will allow the modified (occu-
pied) set point(s) to take effect immediately. The “over-
ride” icon (clock) will be displayed while the override is
in effect.
• While in Modify Set Point mode, after ten seconds of
being idle the LCD will return to the default Space Tem-
perature display and the “set point” icon (thermometer)
will disappear. The last displayed set point will be sent to
the attached device.
NOTE: If there is not a device attached or if the attached
device is not a supported CCN type, an error code of “E2” will
be displayed in the numeric portion of the LCD area. See
Table 5.
NOTE: Refer to Tables 1-3 for ICON definitions.
Fig. 2 — T58 Sensor Display Icons

3
Table 1 — VAV Air Terminal Controller
LEGEND
Table 2 — Fan Coil Controller
LEGEND
Table 3 — Retrofit Rooftop/Economizer Controller
LEGEND
VAV M OD E T5 8 IC ON
OFF (0) CIRCLE with enclosed |
HEAT (1) SUNSHINE
WARM-UP (2) SUNSHINE
VENT (3) FAN ALONE
FAN & VENT (4) FAN with 2 lines
COOL (5) SNOWFLAKE
DEHUMID (6) WATER DROPLET
REHEAT (7) SUNSHINE
PRESSURE (8) TRIANGLE with enclosed!
EVAC (9) TRIANGLE with enclosed!
ZEROCAL (10) CIRCLE with enclosed | BLINK 1 SEC RATE
COMMISS (11) CIRCLE with enclosed | BLINK 1 SEC RATE
OVERRIDE CLOCK
T58 ACTION T58 DISPLAY
DEFAULT DISPLAY DISPLAY SPACE TEMP with NO ICONS
SET POINT RESET THERMOMETER ICON, DISPLAY HEAT/COOL SET POINT VALUE, FLASHING SNOWFLAKE OR SUNSHINE
FAN SPEED (READ ONLY) FAN ALONE = OFF, LO SPEED, FAN ALONE BLINKING = AUTO
TIME SCH OVERRIDE CLOCK ICON DISPLAYS FOR DURATION OF OVERRIDE PERIOD
DISPLAY OAT SUN & CLOUDS ICON, DISPLAY LAST RECEIVED OAT
OAT — Outdoor-Air Temperature
VAV — Variable Air Volume
FAN COIL MODE T58 ICON
OFF (0) CIRCLE with enclosed |
OCC COOL (1) SNOWFLAKE
OCC HEAT (2) SUNSHINE
FAN ONLY (3) FAN with 2 LINES
UNOCCOOL (4) SNOWFLAKE
UNOCHEAT (5) SUNSHINE
DEHUMID (6) WATER DROPLET
T58 ACTION T58 DISPLAY
DEFAULT DISPLAY DISPLAY SPACE TEMP with NO ICONS
SET POINT RESET THERMOMETER ICON, DISPLAY HEAT/COOL SET POINT VALUE, FLASHING SNOWFLAKE OR SUNSHINE
FAN SPEED FAN ALONE = OFF, LO, MED, HI SPEED, FAN ALONE BLINKING = AUTO
TIME SCH OVERRIDE CLOCK ICON DISPLAYS FOR DURATION OF OVERRIDE PERIOD
DISPLAY OAT SUN & CLOUDS ICON, DISPLAY LAST RECEIVED OAT
OAT — Outdoor-Air Temperature
ROOFTOP MODE T58 ICON
OFF (0) CIRCLE with enclosed |
OCC COOL (1) SNOWFLAKE
OCC HEAT (2) SUNSHINE
FAN ONLY (3) FAN with 2 LINES
UNOCCOOL (4) SNOWFLAKE
UNOCHEAT (5) SUNSHINE
VENT (6) FAN ALONE
DEHUMID (7) WATER DROPLET
DEMAND LIMIT (8) CIRCLE with enclosed | BLINK 1 SEC RATE
PRESSURE (9) TRIANGLE with enclosed!
EVAC (10) TRIANGLE with enclosed!
PURGE (11) TRIANGLE with enclosed!
FIRE SHUTDOWN (12) TRIANGLE with enclosed!
T58 ACTION T58 DISPLAY
DEFAULT DISPLAY DISPLAY SPACE TEMP WITH NO ICONS
SET POINT RESET THERMOMETER ICON, DISPLAY HEAT/COOL SET POINT VALUE, FLASHING SNOWFLAKE OR SUNSHINE
FAN SPEED (READ ONLY) FAN ALONE = OFF, LO SPEED, FAN ALONE BLINKING = AUTO
TIME SCH OVERRIDE CLOCK ICON DISPLAYS FOR DURATION OF OVERRIDE PERIOD
DISPLAY OAT SUN & CLOUDS ICON, DISPLAY LAST RECEIVED OAT
OAT — Outdoor-Air Temperature

Manufacturer reserves the right to discontinue, or change at any time, specifications or designs without notice and without incurring obligations.
PC 111 Catalog No. 533-383 Printed in U.S.A. Form 33ZC-3SO Pg 4 7-01 Replaces: 33ZC-2SO
Copyright 2001 Carrier Corporation
Book 1 4
Ta b 1 1 a 1 3 a
Initiate Time Schedule Override — Time Sched-
ule Override is initiated by pressing and holding the MODE
button. This action will cause a CCN message to be sent which
will initiate the Time Schedule Override function in the
attached device.
• If the current occupancy state of the attached device is
Unoccupied, then the state will become Occupied for the
duration consistent with the configured “Time Schedule
Override” value in the attached device. After the over-
ride is initiated, the T58 sensor will display a blinking
“clock” icon for 60 seconds. The T58 sensor will then
display a non-blinking “clock” icon indicating time
schedule override is in effect for the attached device.
• If the current occupancy state of the attached device is
Occupied, then this command will act to extend the
Occupied state for the duration as configured in the
attached device. After the override is initiated, the T58
sensor will display a blinking “clock” icon for 60 sec-
onds. The T58 sensor will then display a non-blinking
“clock” icon indicating time schedule override is in
effect for the attached device.
NOTE: If there is no device attached, an error code of “E2”
will be displayed. See Table 5.
Display Outdoor-Air Temperature (OAT) — The
OAT value is obtained from the broadcaster device on the
CCN. The T58 sensor receives the OAT from the broadcaster
device on a periodic basis and the data is stored for easy
retrieval.
• The value can be displayed on the LCD by pressing the
INC and DEC buttons at the same time. The display and
accompanying icon will remain lit for 10 seconds, and
then the LCD display will return to the default Space
Temperature value.
• When a request for OAT is sent, the last OAT value will
be displayed in the LCD.
• If there is not an OAT value available, then a display of
“--” will be displayed.
• The “sun and clouds” icon will be lit to indicate that the
temperature value displayed represents Outside Air Tem-
perature. This display and icon will remain lit for
10 seconds and then the icon will disappear and the LCD
will return to the default temperature value.
Error Codes — The T58 sensor will provide error infor-
mation in the LCD window, whenever an error condition
occurs during normal operation. The Error Code data will
remain displayed for 5 seconds, and then the display will
return to the default Space Temperature value, if available. See
Table 5 for error descriptions.
Table 4 — Modifying Set Point Values
LEGEND
Table 5 — Troubleshooting
LEGEND
SPACE TEMPERATURE PRESSING INC PRESSING DEC
> OCC Cooling Set Point OCC Cooling Set Point OCC Cooling Set Point
< OCC Heating Set Point OCC Heating Set Point OCC Heating Set Point
Between or = to OCC Set Points OCC Heating Set Point OCC Cooling Set Point
OCC — Occupied
DIAGNOSTIC
CODE PROBLEM SOLUTION
E1 Malfunctioning on-board thermistor Occurs when air temperature is below 0°F (–17 C) or above 146 F (63 C)
for 15 seconds or more. This error will clear once the thermistor is in
range. The valid temperature is displayed and error indicator will
disappear.
E2 T58 is not attached to valid device Occurs when a CCN communication is requested and the configured des-
tination address is “0”or the destination device type is 0. No data will go
out to the CCN until the Installer Options have been correctly configured
to a valid device on the network.
E3 CCN Communication Failure Occurs whenever the T58 sensor initiates a CCN communication and
there is not a successful completion of communication. The user needs to
determine the problem and rectify the situation.
E4 Command rejection Occurs whenever the attached device rejects a command from the T58
sensor. The user needs to determine the problem and rectify the situation.
CCN — Carrier Comfort Network