AP-TMZ1600 Room Sensor with LCD Display Installation Guide

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24- 8910- 7, Rev . G

Installation Instructions
Issue Date March 2016

AP-TMZ1600 Room Sensor with LCD Display

Application Installation
The TMZ is compatible with Unitary (UNT) controller Install the TMZ in an accessible location where the
and Variable Air Volume (VAV) (Revision D or later) temperature is representative of general room
controller and with the VAV for Modular Assembly conditions. Avoid mounting the TMZ near cold or warm
(VMA1400 Rev. C00 or later and all VMA1200s). Use air drafts, radiant heat, or direct sunlight.
HVAC PRO Release 8.01 or later to configure the
UNT, VAV, and VMA for use with the TMZ. See the IMPORTANT: Prevent any static electric
Technical Data section for details. discharge to the TMZ1600 Room Sensor. Static
electric discharge can damage the room sensor and
The TMZ connects to the controller via an 8-pin phone void any warranties.
jack cable assembly that provides Zone Bus, sensor,
and power supply connections. Note: Do not mount the module on an exterior wall.
When the TMZ is used with a compatible
Johnson Controls® digital controller, verify proper Parts Included
system operation using a Zone Terminal Unit (ZTU), a The following parts are included with the TMZ:
laptop computer with CBLPRO and HVAC PRO
software, or a Palm compatible handheld interface • AP-TMZ1600 Room Sensor with Liquid Crystal
with VMA Balancing Tool (VBT) software. Display (LCD)

Both the ZTU and CBLPRO plug into the 6-pin phone • surface base
jack on the bottom of the TMZ to access the Zone bus. • wallbox mount base (wallplate) with cover screw
80 mm (for vertical or horizontal 2 x 4 in. wallbox
(3.2 in.) Segmented mounting)
Display
• endcaps (2)

RM • hollow plastic wall anchors (2)
AIR OCC
• No. 8 x 1-1/4 in. slotted pan-head sheet metal
screws (2), for surface base
80 mm
(3.2 in.) • No. 6-32 x 1/2 in. flat-head machine screws (2), for
Light-Emitting
Diode wallplate
(LED)
Temporary Special Tools Needed
Occupancy
Button For a typical installation, you need the following:
inst
• 1.5 mm (1/16 in.) Allen wrench or stat adjustment
tool
Figure 1: AP-TMZ1600
• 1/4 in. flat-blade screwdriver
• 8 mm (5/16 in.) drill bit and drill

© 2016 Johnson Controls, Inc. 1
Part No. 24-8910-7, Rev. G www.johnsoncontrols.com
Code No. LIT-6363110
Mounting Surface Mounting
The TMZ accommodates both surface and 2 x 4 in. To mount the TMZ using the surface base:
wallbox mounting (horizontal or vertical). To mount the 1. Pull the wiring through the wall.
TMZ, first remove the base.
2. Place the surface base against the wall with the
Removing the Base arrow pointing up, and mark the screw holes using
the base as a template. Use the top and bottom
To remove the base from the TMZ:
holes for mounting (Figure 2).
1. Insert a 1.5 mm (1/16 in.) Allen wrench in the hole
located in the top of the TMZ, in the center.
2. Press down gently on the Allen wrench while
carefully pulling the mounting base apart from the
TMZ.
3. Proceed to the Surface Mounting or Wallbox
Mounting section.
Note: Do not use this hole when mounting
31.7 mm the surface base. The screw will
(1.25 in.) interfere with the installation of the
7.5 mm TMZ1600.
(0.30 in.)
6 mm
(0.24 in.) 4.2 mm
(0.17 in.)
8.2 mm (0.32 in.)

4.2 mm
(0.17 in.)

UP
60.9 mm
(2.40 in.)

7.5 mm 30 mm
(0.30 in.) (1.18 in.)
4.2 mm 9.1 mm
(0.17 in.) (0.36 in.)

surfbase

Use these holes for mounting.
8.5 mm
(0.33 in.)

Figure 2: Surface Base
3. Drill two 8 mm (5/16 in.) holes at the locations you
marked.
Note: An ACC-INSL-1 surface mounting pad may be
used between the mounting base and the dry wall to
accommodate uneven mounting surfaces or block wall
drafts.

2 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
4. Insert the anchors in the drilled holes, pull the
wiring through the surface base, position the
surface base, and drive the screws (Figure 3).

Drywall

Base

a b b c

surfmount

Figure 3: Mounting the Surface Base
5. Wire the TMZ (refer to the Wiring section in this 80 mm
document). (3.15 in.)

6. Reattach the TMZ to the surface-mount base.
Cover Screw
Wallbox Mounting (Insert the cover screw
UP above the other UP arrow
for horizontal mounting.)
To mount the TMZ using the wallplate and a standard
2 x 4 in. wallbox: UP

1. Remove the cover screw from the wallplate 119 mm Use these holes for
(4.70 in.) mounting to wallbox.
(Figure 4).
2. Pull the wiring through the wallplate.
3. Position the wallplate so that one of the arrows
points up, and fasten the wallplate to the wallbox
using the screws provided.
wallbse

Note: An ACC-INSL-0 wallbox mounting pad may be
used between the mounting base and the dry wall to Figure 4: Wallplate (Shown Vertical)
accommodate uneven mounting surfaces or block wall
drafts.
4. Wire the TMZ (refer to the Wiring section in this
document).
5. Attach the TMZ to the wallplate, and replace and
tighten the cover screw with a 1.5 mm (1/16 in.)
Allen wrench or stat adjustment tool.
6. Install the endcaps provided by snapping them
onto the wallplate.

AP-TMZ1600 Room Sensor with LCD Display Installation Instructions 3
Wiring
Table 1 describes the pinouts for each phone jack on
! CAUTION: Risk of Property Damage. the TMZ.
Do not run low voltage cable in the same conduit or Table 1: TMZ Phone Jack Pinouts
wiring troughs with high voltage wires. Running low
8-Pin Phone Jack on 6-Pin Phone Jack on
and high voltage wires in the same conduit or wiring
TMZ TMZ
troughs may damage the equipment or cause
system malfunction. Pin Signal Pin Signal
MISE EN GARDE: Risque de dégâts matériels. 1 Not Used 1 Not Used
Ne pas faire courir un câble basse tension dans les
2 Not Used 2 Supply: 24 VAC
mêmes gaines ou goulottes électriques que des
câbles haute tension. L'installation de fils basse 3 AI1, Zone 3 Supply/Zone Bus
tension et haute tension dans les mêmes gaines ou Temperature Sensor Common
goulottes électriques risque d'endommager 4 AI1, Sensor Common 4 Not Used
l'équipement ou de provoquer des
5 Supply: 24 VAC 5 Zone Bus
dysfonctionnements du système.
6 Supply/Zone Bus 6 Not Used
Note: All terminals are power limited. Electrical Common
wiring must conform to local codes and should be
7 Not Used
done by certified personnel only.
8 Zone Bus
To connect the TMZ to a UNT, VAV, or VMA
controller, connect an 8-pin phone jack cable
assembly from the 8-pin phone jack on the TMZ
Figure 6 illustrates the cable and phone jack pinouts
(Figure 5) to the 8-pin phone jack on the controller.
used to connect the TMZ to a controller:

1 2 3 4 5 6 7 8
J1
C1 7

L1
C8
U2 R2 8
U4
Controller Phone Plug
D5
D7
(Tab Notch Up)
U5 D8
To 8-pin
C1 6

8-pin C9 C4
D9
Phone Jack
Phone D6 D4 on Controller
Jack +
C6
Y2 Q3
(30 m [100 ft]
Y1

J5
Maximum)

6-pin
Phone Q1 D2

Jack Not Used
Q2 Not Used
RT1
Q4
J6
AI1
VR1 AI COM
Supply
Common
tmzwire Not Used 8-Pin Phone Jack
ZB+
(Tab Notch Down)

To ZTU or Laptop PC via CBLPRO Interface 1 2 3 4 5 6 7 8
(30 m [100 ft] Maximum)

Terminal 1 is to the
Figure 5: TMZ1600 Cable Connections extreme left as you face
the phone jack opening,

! CAUTION: Risk of Property Damage. TMZ1600 Phone Plug
tab notch down.

Do not insert a 6-pin connector or anything other (Tab Notch Up) cblfab
than an RJ-45 8-pin connector into the 8-pin jack on
the back of the TMZ to prevent damaging the phone Note: This may not be typical of prefabricated phone
jack. cable. A telephone system cable is wired opposite of the
MISE EN GARDE: Risque de dégâts matériels. zone sensor requirements.
Ne pas insérer un connecteur à 6 broches ou tout Figure 6: Cable and Phone Jack Pinouts
connecteur autre qu'un connecteur RJ-45 à
8 broches dans la fiche à 8 broches située à l'arrière
de l'TMZ afin d'éviter d'endommager la fiche
téléphonique.

4 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
Operation
Basic Operation
The TMZ1600 has five control buttons. Their basic
functions are described in Table 2.
Table 2: TMZ1600 Button Functions
Button Function
Menu Cycles through the following display options: room air temperature, outdoor air temperature, comfort
setpoint temperature, and fan operation.
In Password mode*, cycles through these additional display options: comfort setpoint temperature access
status, fan access status, Temporary Occupancy duration, heating setpoint temperature, and cooling
setpoint temperature.
Down Displays the comfort setpoint temperature if pushed while room air temperature is displayed.
Arrow
Lowers the setpoint temperature when setpoint is displayed and blinking.
Toggles fan operation mode between On and Auto when the fan mode is displayed and blinking.
In Password mode*, sets user access to UnLK.
Up Arrow Displays the comfort setpoint temperature if pushed while room air temperature is displayed.
Raises the setpoint temperature when the setpoint is displayed and blinking.
Toggles fan operation mode between On and Auto when the fan mode is displayed and blinking.
In Password mode*, sets user access to LOCK.
°F/°C Toggles temperature display between degrees Fahrenheit (°F) and degrees Celsius (°C).
Temporary Toggles the controller between Standby or Unoccupied mode and Temporary Occupancy mode. The Light-
Occupancy Emitting Diode (LED) above this button lights when Temporary Occupancy mode is active.
* Press and hold the Menu and °F/°C buttons simultaneously for 10 seconds to access Password mode.

LCD Display Symbols
Figure 7 shows the relative size and location of the During power up, the full range of LCD Display
LCD Display symbols: symbols appears for approximately 10 seconds or
more, followed by Err6 if the controller has not started
communication yet. The TMZ repeats this sequence
OUT TMP
until the default display (RM AIR) appears.
RM UN-
Table 3 describes the LCD display symbols.
AIR OCC
OFF SBy

Figure 7: LCD Display Symbols

AP-TMZ1600 Room Sensor with LCD Display Installation Instructions 5
Table 3: LCD Display Symbol Descriptions
Symbol Description
RM AIR Room Air: indicates the room air (zone) temperature is displayed. The room air temperature value is
not adjustable. The LCD defaults to this display if no button is pressed for more than 30 seconds.
OUT AIR Outdoor Air: indicates the outdoor air temperature is displayed. The outdoor air temperature value is
not adjustable.
TMP OCC Temporary Occupancy: indicates controller is in Temporary Occupancy mode.
In Password mode, indicates that Temporary Occupancy duration is displayed.
UNOCC Unoccupied: indicates controller is in Unoccupied mode.
OCC Occupied: indicates controller is in Occupied mode.
SBy Standby: indicates controller is in Standby mode. This is an energy conservation mode of the
controller.
OFF Off: indicates heating and cooling equipment is off (Shutdown mode).
Comfort Setpoint Temperature: indicates the comfort setpoint temperature is displayed (7 to 32°C
[45 to 90°F] maximum range).
In Password mode, indicates comfort setpoint temperature access status (UnLK or LOCK) is
displayed. Comfort setpoint temperature access status can be changed if segmented display is
blinking.
Heating Mode (flame symbol): indicates heating equipment is on.
In Password mode, indicates the heating setpoint temperature is displayed (4.5 to 31.1°C [40 to 89°F]
maximum range). The heating setpoint temperature value is adjustable if the segmented display is
blinking. (Dual setpoint applications only. Field is skipped for single setpoint applications.)
Cooling Mode (snowflake symbol): indicates cooling equipment is on.
In Password mode, indicates the cooling setpoint temperature is displayed (7.8 to 35°C [46 to 95°F]
maximum range). The cooling setpoint temperature value is adjustable if the segmented display is
blinking. (Dual setpoint applications only. Field is skipped for single setpoint applications.)
Fan: indicates fan is on.
In Password mode, indicates fan access status (UnLK or LOCK) is displayed. Fan access status can
be changed if segmented display is blinking.
Fan On: indicates fan is on. Fan status can be changed if segmented display is blinking.

Fan Auto: indicates fan is automatically controlled (turned on or off) by the controller. Fan status can
be changed if segmented display is blinking.

Fan Off: indicates fan is off. Fan status can be changed if segmented display is blinking. Also indicates
that Password mode has been exited.
Note: The user cannot set Fan operation to Off.
If fan is off, the fan symbol does not appear on the room air temperature display.
Degrees Fahrenheit

Degrees Celsius

Password Mode: indicates Password mode is active.

Error: indicates an error is detected. The specific error is identified by an accompanying number
(0 through 6). Refer to Table 5 for specific error message descriptions.

6 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
Room Air Temperature
The room air temperature is the default display for
the TMZ. If no button is pressed for 30 seconds, the
LCD defaults to the room air temperature. Various
symbols appear along the right side and bottom of OCC
the display to indicate the current mode of the
controller and the status of connected equipment
(Figure 8). Refer to Figure 7 and Table 3 for a
description of these symbols. Figure 9: Comfort Setpoint Temperature Display
Symbols appear here 2. Press the down arrow to lower the comfort
to indicate the current
mode of the controller, RM setpoint temperature (this will also lower heating
and the status of and cooling setpoint temperatures). Press the up
connected equipment. AIR OCC arrow to raise the comfort setpoint temperature
(this will raise heating and cooling setpoint
temperatures). The maximum comfort setpoint
temperature range is 7 to 32°C (45 to 90°F). The
Figure 8: Room Air Temperature Display HVAC PRO program, however, can set comfort
value high limits and low limits (in the HVAC
Outdoor Air Temperature
PRO program, these are called High Setpoint
To view the outdoor air temperature, press the Menu Limit and Low Setpoint Limit, respectively) for a
button once while the room air temperature is TMZ thermostat. The default range is 18 to 26°C
displayed. OUT AIR appears on the LCD display to (65 to 78°F).
indicate that the outdoor air temperature is
displayed. If the controller is not configured for Note: The comfort setpoint temperature can be
outdoor air, this screen does not appear. changed only if the segmented display is blinking. If the
segmented display does not blink, refer to the Jumper
Comfort Setpoint Temperature Lockout and Password Mode sections of this document.
In the single setpoint application, the comfort Fan Operation
setpoint temperature is the controller common
setpoint. The fan operation display indicates the current fan
operation mode (Off, On, or Auto). If the controller is not
In the dual setpoint application, the comfort setpoint configured for fan control, this screen does not display.
temperature is the average of the heating and To view or change the current fan operation mode:
cooling setpoint temperatures. Raising or lowering
the comfort setpoint temperature raises or lowers the 1. Press the Menu button until the fan operation display
occupied heating and cooling setpoint temperatures appears (Figure 10).
by the same number of degrees. When the actual
room temperature falls below the heating setpoint
temperature, or rises above the cooling setpoint
temperature, heating or cooling equipment is
activated. To individually adjust the heating and
cooling setpoints, refer to the Password Mode
section of this document.
Note: Setpoint adjustments only affect the Figure 10: Fan Operation Display
setpoints for the Occupied mode of operation.
2. Press the arrow buttons to toggle between On and
To view or change the current comfort setpoint Auto. On indicates that the fan is always on. Auto
temperature: indicates that the fan is automatically controlled
(turned on or off) by the controller.
1. Press the down or up arrow once while the
room air temperature is displayed, or press 3. If the Auto fan speed is selected, On or Off appears
the Menu button until the comfort setpoint on the fan operation display to show the fan status.
temperature appears (Figure 9). The fan does not display Auto, but does operate in
automatic mode.

AP-TMZ1600 Room Sensor with LCD Display Installation Instructions 7
Note: The fan operation mode can be changed Note: The Password mode menu items can be
only if the segmented display is blinking. If the changed only if the segmented display is blinking. If the
segmented display does not blink, refer to the segmented display does not blink, refer to the Jumper
Jumper Lockout and Password Mode sections of Lockout section of this document. If no buttons are
this document. Fan operation cannot be changed pressed for 30 seconds, Password mode is exited
when the TMZ is connected to a VAV controller. automatically.
Note: The user can override N2 overrides to the To enter Password mode and set the five Password
fan at the TMZ. mode menu items:

Temporary Occupancy 1. Press and hold the Menu and °F/°C buttons
simultaneously for approximately 10 seconds until
The Temporary Occupancy button toggles between PASS appears. The comfort setpoint temperature
the current controller mode (Standby or Unoccupied) access status appears (Figure 11).
and Temporary Occupancy mode. Temporary
Occupancy mode maintains the same comfort
settings as Occupied mode for a predetermined time
period (0-4 hours) called the Temporary Occupancy
duration. The HVAC PRO controller configuration
must be set for 30 minutes or greater to enable a
timed override command. If the Temporary
Occupancy button is pressed again during the
Temporary Occupancy duration, the controller
Figure 11: Comfort Setpoint Temperature
immediately reverts to the previous mode. For
Access Status
information on setting the Temporary Occupancy
duration, refer to the Password Mode section of this 2. Press the arrow buttons to toggle between UnLK
document. and LOCK. UnLK allows a user to change the
comfort setpoint temperature; LOCK prevents a user
Note: The Temporary Occupancy button does not from changing the comfort setpoint temperature.
function if the controller is in Occupied or Off
(Shutdown) mode, if the Temporary Occupancy 3. Press the Menu button once. The fan access status
feature is not selected in the controller, or if the appears (Figure 12).
Temporary Occupancy duration is set to zero.
Note: Boost mode is not used with the TMZ. The
LED above the Temporary Occupancy button lights
immediately, and TMP OCC appears on the LCD
after several seconds, when Temporary Occupancy
mode is active.
Note: The Temporary Occupancy Button will not
function if the jumper on the TMZ is set to the locked Figure 12: Fan Access Status
position or if the controller password setting is Note: If the controller is not configured for fan control,
locked. this screen is skipped.

Password Mode Note: When the TMZ is used with the VMA1400
controller, both the comfort setpoint temperatures
Password mode is a discrete mode that allows access status and the fan access status are reset to
comfort setpoint temperature and fan control to be UnLK if the power resets, if communication with the
blocked from user access. The Temporary Zone Bus is lost, or if a download occurs. When the TMZ
Occupancy duration, occupied heating setpoint (Firmware Rev. AO7 or later) is used with the VAV, UNT,
temperature, and occupied cooling setpoint or VMA1200 controllers and HVAC PRO Release 8.01,
temperature are also set in Password mode. The the fan and setpoint temperature access status are
occupied heating and cooling setpoint temperatures retained at the last condition (LOCK or UnLK) after a
are displayed only with dual setpoint applications. controller reset, TMZ reset, or a power failure. The fan
and setpoint temperature access status are set to UnLK
after a controller download.
4. Press the arrow buttons to toggle between UnLK
and LOCK. UnLK allows a user to control the fan;
LOCK prevents a user from controlling the fan.
8 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
5. Press the Menu button once. The Temporary 10. Press the arrow buttons to adjust the cooling
Occupancy duration appears (Figure 13). setpoint temperature. The minimum cooling setpoint
temperature is one degree greater than the Low
TMP Setpoint Limit (also known as comfort value low
limit) defined in the HVAC PRO program (the HVAC
PRO program allows a minimum Low Setpoint Limit
OCC of 7°C [45°F]; the default limit is 18°C [65°F]). The
maximum cooling setpoint temperature is 35°C
(95°F).
11. Press the Menu button to cycle through the
Figure 13: Temporary Occupancy Duration Password mode menu items again, or press the
6. Use the arrow buttons to set the time value in Menu and °F/°C buttons simultaneously to exit
1/2-hour increments up to a maximum of Password mode. OFF appears on the display while
4 hours. This value determines the length of exiting Password mode.
time that Temporary Occupancy mode is
maintained after the Temporary Occupancy Outdoor Air Setup
button is pressed. Setting the Temporary
To set up the TMZ for outdoor air, do the following:
Occupancy duration to zero prevents user
access to this feature. 1. Open the Inputs screen of the HVAC PRO program.
7. Press the Menu button once. The heating 2. To display the outdoor air temperature on the TMZ,
setpoint temperature appears (Figure 14). select any unused AI and define the Long Name to
Outdoor Air Temp.
3. Change the Sensor Type field to match the remote
sensor type.
OCC 4. Select OK.
5. Connect the outdoor air sensor to the AI selected for
Outdoor Air Temp.
Figure 14: Heating Setpoint Temperature
Remote Sensing
Note: If the controller is configured for a single
To use a remote sensor instead of using the physical
setpoint, this screen is skipped.
TMZ sensor, do the following:
8. Use the arrow buttons to adjust the heating
1. Open the Inputs screen of the HVAC PRO program.
setpoint temperature. The minimum heating
setpoint temperature is 4.5°C (40°F). The 2. Double-click AI1 Zone Temp.
maximum setpoint temperature is one degree
3. In the upper left corner of the Zone Temp screen,
less than the High Setpoint Limit (also known as
change AI1 to another unused AI (such as AI2). This
comfort value high limit), which is defined with
the HVAC PRO program (the HVAC PRO moves Zone Temp to the selected AI.
program allows a maximum High Setpoint Limit Note: The TMZ displays any AI as Room Air Temp
of 32°C [90°F]; the default limit is 24.6°C [78°F]). when the Long Name field is set as Zone Temp.
9. Press the Menu button once. The cooling 4. Change the Sensor Type field to match the remote
setpoint temperature appears (Figure 15). sensor type.
5. Select OK.
6. 6. Connect the remote sensor to the AI selected for
Zone Temp. The TMZ now displays the remote
OCC sensor value.

Power Failure
Figure 15: Cooling Setpoint Temperature
When the TMZ is used with a VMA1400 and
Note: If the controller is configured for a single
experiences a power failure, all set values are not
setpoint, this screen is skipped.
affected except the comfort setpoint temperature access

AP-TMZ1600 Room Sensor with LCD Display Installation Instructions 9
status and fan access status. The comfort setpoint If the jumper is set to LOCK (Pins 2 and 3), the control
temperature access status and fan access status functions of the TMZ (including the Temporary
always default to UnLK after a power failure. When Occupancy button) are disabled. All menu items display
the TMZ is used with a VAV, UNT, or VMA1200, all as usual, but none of the settings can be changed.
set values are not affected after a reset or power
Note: The default jumper position from the factory is
failure.
the UnLK position.
Jumper Lockout
Pins 1 and 2 Jumpered on J1
The jumper on J1 of the TMZ (Figure 16) has two (UnLK Position)
positions: UnLK and LOCK. If the jumper is set to UnLK LOCK
UnLK (Pins 1 and 2), the User and Password mode J1
menu items function normally. UnLK LOCK
J1 U2 R28
C17 U4

L1 U2 R28
C8
D7
D5

U5 D8
C16
D9
C9 C4

D6 D4

C6
+ Y2 Q3

Q1 D2

Q2
Q4
RT1 J6
VR1

jmprdia

Figure 16: Jumper Block J1 on TMZ1600

Troubleshooting
Table 4: Basic Problems and Solutions
Problem Solution
Some menu items do not If the controller is not configured for certain features (such as outdoor air temperature or
display. fan control), the corresponding menu items do not display.
Display does not default to To change the default temperature units to either degrees Fahrenheit (°F) or degrees
preferred units (°F or °C). Celsius (°C), use the HVAC PRO program to change the default units in the controller.
Temporary Occupancy Verify the controller is not in Occupied or Off mode. Also verify the Temporary Occupancy
button does not operate. feature is enabled in the controller configuration, the Temporary Occupancy duration is not
set for fewer than 30 minutes, and the OCC OVRD time is not overridden by HVAC PRO.
Verify the TMZ jumper setting is in the unlocked position and the controller password setting
is unlocked.
The ZTU reads FAIL or Disconnect the ZTU. Press the Menu button on the TMZ so that the room air temperature is
does not respond when not displayed (any other display is acceptable). Reconnect the ZTU while the room air
connected to the 6-pin temperature is not displayed. The ZTU should function properly, but the room air
phone jack. temperature display remains blank until the ZTU is disconnected.
The TMZ room air The TMZ cannot communicate on the Zone Bus while the ZTU is connected. Disconnect the
temperature does not ZTU.
update while the ZTU is
connected.
Setpoint limits are too In the Define Remote AI Points section of the HVAC PRO Q&A session, select TMZ Digital
high or too low, or comfort Room Sensor. The default low setpoint limit is 18°C (65°F), and the default high setpoint
value adjustment range is limit is 26°C (78°F). To change these limits, select Params in the HVAC PRO program.
too large or too small, or Select TMZ Setpoint Range parameter. Double-click either High or Low Setpoint Limit.
the cooling/heating Change the Value field to the desired setting. Save the file, then download the file to the
setpoint ranges are too controller. Commission the configuration and verify that the High/Low setpoints are correct.
small. Note: TMZ Firmware Revision A07 and earlier supported narrower setpoint ranges. To take
full advantage of the wider setpoint ranges described in this literature, TMZ Firmware
Revision A08 or later is required along with HVAC PRO Release 8.04 or later.
Continued on next page . . .

10 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
Problem (Cont.) Solution
Displayed room Use the HVAC PRO program to verify AI1 (Zone Temp) Sensor Type is set to Resistive
temperature does not Nickel (R-NI). Also, verify that Zone Temp is located at AI1. If this fails to correct the
appear to be correct. problem, the connection to the TMZ may be faulty. Verify that the cable connections are
correct.
Setpoints display Check to see if the HVAC PRO program is overriding the Occ Htg Setpt and Occ Clg Setpt
incorrectly. to settings that force the comfort setpoint temperature outside the range defined for the Low
Setpoint Limit and High Setpoint Limit parameters. If so, release the overrides.
Standby BI is not working. Check to make sure that Both with BI backup is not selected as the answer to the
Define Standby mode question in the HVAC PRO Q&A session.
RM AIR value does not Several factors may affect the accuracy of the TMZ sensor, including cable length and
match the actual room air controller offsets. An offset to compensate can be set through the HVAC PRO program. The
temperature. sensor should be stabilized to room ambient temperature prior to calibration.
Comfort Setpoint This reset occurs when a VMA1400 controller is connected to the TMZ1600 and any of
Temperature Access these events occur: a power failure, a download of a controller, or a Zone Bus
Status and Fan Access communication failure. This UnLk condition also occurs in a VAV, UNT, or VMA1200 after a
Status Reset to UnLK. download. To reverse this UnLK condition, enter TMZ Password mode and set the Lock
condition for the comfort setpoint and fan status. If a more permanent solution is needed to
restrict user access to setpoint or fan adjustments, position the jumper on J1 to lock user
access to any adjustments.
Fan speed cannot be The fan speed cannot be changed, and the fan access status defaults to LOCK when the
changed or unlocked. TMZ is connected to a VAV controller.
Occupied Heating and The TMZ comfort setpoint is not initially within the new high and low TMZ setpoint limits.
Cooling Setpoint This forces the TMZ to write a +/-5°F occupied cooling/heating setpoint deadband back to
deadband changes to the controller. The TMZ comfort setpoint is then moved into the new setpoint range, and the
+/-5°F when low or high +/-5°F deadband is based on the new TMZ comfort setpoint. To correct the problem, go to
setpoint limits are HVAC PRO configuration mode, set the desired setpoint limits and occupied cooling/heating
changed in HVAC PRO setpoints. Save this configuration and re-download the application.
Commission mode. (Dual
setpoint applications only)

Error Messages
Table 5 describes the error messages that may appear on the LCD.
Table 5: Error Message Descriptions and Solutions (Err3 not used)
Error Description Solution
Error 0: indicates that the Check the connections to the controller. If the error persists in the RM AIR
outdoor air temperature display, and the actual temperature is within the specified operating
sensor is outside the range, replace the TMZ. If the error persists in the OUT AIR display,
-45 to 121°C (-50 to 250°F) disconnect the outdoor air temperature sensor and measure resistance. If
range, or the room air the resistance is incorrect, replace the outdoor sensor. (Refer to the
temperature sensor is outside appropriate literature for the outdoor sensor when determining the
the 0 to 50°C (32 to 122°F) appropriate resistance at a measured temperature.) If resistance is
range. correct, reconnect the sensor. If error persists, replace the controller.
Error 1: indicates a RAM Power down the TMZ, then power up again. If the error persists, replace
error has been detected. the TMZ.

Continued on next page . . .

AP-TMZ1600 Room Sensor with LCD Display Installation Instructions 11
Error (Cont.) Description Solution
Error 2: indicates that the If the value needs to be changed, cancel N2 overrides through the HVAC
value displayed on the LCD PRO program.
is being overridden by a Error 2 does not apply to fan overrides.
device from the N2 Bus and
cannot be changed.
Error 4: indicates that the Obtain the correct Revision (Release 8.01 or later).
TMZ detects an The TMZ does not work with an AHU.
incompatible HVAC PRO
revision, or that the TMZ is
connected to an AHU.
Error 5: indicates that the Purchase a new UNT or VAV with firmware Revision D or later.
TMZ detects an
incompatible VAV or UNT.
Error 6: indicates that the The TMZ automatically resets itself to correct this error. If the error
controller has not responded persists, check the phone jack cable connection and ensure the LED on
to a request from the TMZ to the controller is blinking to indicate communication is in progress. Error 6
update the LCD with current may also occur under normal conditions when a new configuration is
information. downloaded through the HVAC PRO software. During a power up it may
take several minutes to display the RM AIR screen on the TMZ display
following an Err 6 message due to the Zone Bus communication speed
between the controller and the TMZ. Err 6 may also appear while a ZTU is
plugged into the TMZ. The controls on the TMZ cannot be used until the
ZTU is disconnected. Err 6 may also appear if the VMA firmware has not
been updated to Version C00.
Note: Errors 4, 5, and 6 only display for approximately 5 seconds, then the full range of LCD symbols display for
15 to 30 seconds; these displays continue alternating until the error is cleared.

Accessories
Table 6 lists the part numbers for TMZ replacement parts and accessories.
Table 6: Replacement Parts and Accessories
Product Code Number Description
ACC-DWCLIP-0 Drywall Clip Mounting Kit (10/bag)
ACC-INSL-0* Room Sensor Wallbox Mounting Pad (10/bag)
ACC-INSL-1* Room Sensor Surface Mounting Pad (10/bag)
TE-6400-603 Endcaps (10/bag)
CBL-STAT25-SW/WC** Preconfigured 8-pin cable, 7.62 m (25 ft)
CBL-STAT50-SW/WC** Preconfigured 8-pin cable, 15.24 m (50 ft)
CBL-STAT75-SW/WC** Preconfigured 8-pin cable, 22.86 m (75 ft)
CBL-STAT100-SW/WC** Preconfigured 8-pin cable, 30.48 m (100 ft)
CBL-24/8NAT-SW/WC** 304.8 m (1000 ft) roll of Plenum rated cable
S100710 RJ45 modular plugs
S104012 Premium/economy crimp tool
S104020 Twisted pair easy strip
* These foam pads make installation easier when mounting a sensor on an uneven surface, and can block wall drafts.
** These parts are available from Southwest Wire (SW) or Windy City Wire (WC). Use the appropriate SW or WC suffix to
order these parts through the Johnson Controls Preferred Supplier Program.

12 AP-TMZ1600 Room Sensor with LCD Display Installation Instructions
Technical Data
Product AP-TMZ1600-0 Room Sensor with LCD Display (TMZ1600)
Operating Environment 0 to 50°C (32° to 122°F) 10 to 90% non-condensing humidity
Storage Environment -40° to 60°C (-40 to 140°F) 10 to 90% non-condensing humidity
Input (Supply) Voltage 12 to 30 VAC or 12 to 40 VDC
Input Current Required 10 mA maximum
Housing Material ABS + polycarbonate, self-extinguishing UL 94-V0
Housing Protection IP 30 (IEC 529)
Dimensions 80 x 80 x 32 mm (3.15 x 3.15 x 1.26 in.)
Weight 0.15 kg (5.3 oz)
Override Button Momentary contact
Mode Indicator Red LED
Temperature Sensor Sensor Type: Nickel PTC
Range: 0 to 50°C (32 to 122°F)
Reference Resistance: 1000 ohm at 21.1°C (70°F)
Accuracy: +/-0.2°C (0.3°F) at 21.1°C (70°F)
+/-0.6°C (1°F) at 0°C to 50°C (32 to 122°F)
Software HVAC PRO Release 8.01 or later (part of M-Tool Release 1.0 [MW-MTOOL-0])
Note: HVAC PRO Releases 8.01 through 8.03 limit the comfort setpoint range to 18-29°C
(65-85°F). HVAC PRO Release 8.04 and later allows a maximum comfort setpoint range of
7-32°C (45-90°F).
Phone Jack Cable Cable with phone jack connectors on each end, 30 m (100 ft) maximum length
Interface AS-CBLPRO-1 or later, Zone Terminal Unit (ZTU)
Tools Stat Adjustment Tool, Part No. T-4000-119 (optional)
Agency Compliance UL Listed, File E107041, CCN PAZX, UL916
cUL Listed, File E107041, CCN PAZX7, CSA C22.2 No. 205-M1983

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