Honeywell TR40/42 Zio® Lite Wall Modules with and without LCD Display
Before Installation
Installation Location: Install the wall module on an interior wall approximately 54 inches (1372 mm) from the floor, or at the specified location, to ensure exposure to the average zone temperature. Avoid installing on exterior walls, walls with water pipes, or near air ducts. Do not place in locations exposed to discharge air from control devices, radiant heat from fixtures, lights, or direct sunlight.
Mounting Options: The wall module can be mounted on a wall, in a standard electrical box using #6 screws (0.13 in [3.5 mm]), or in a 2.36 in (60 mm) wall outlet box. When mounting directly to a wall, use the appropriate screw type for the wall material.
Diagram: Figure 1 shows the wall module with an LCD display.
Caution: Risk of erratic system operation. Improper wiring practices can cause annoying electrical interference (noise). Keep wiring at least one foot (30.5 cm) away from large inductive loads such as motor starters, lighting ballasts, and large power distribution panels. Shielded cables are required for installations where these guidelines cannot be met. Connect the shield to the ground of the grounded controller connection only.
Important: All wiring must comply with local electrical ordinances and codes, or as specified in the installation wiring diagrams.
Sylk Enabled: Easy 2-wire installation.
Installation Instructions
For information on Sylk bus distance limitations, refer to Table 1 on page 3. All wiring is polarity insensitive.
Installation:
Install the wall module on an interior wall, approximately 54 in (1372 mm) from the floor (or at the specified location) to allow for average zone temperature exposure. Do not install the wall module on an exterior wall, a wall with water pipes, or near air ducts. Avoid locations exposed to control device discharge air or radiant heat from fixtures, lights, or the sun.
The wall module can be installed on a wall, in a standard junction box using #6 screws (0.13 in [3.5 mm]), or in a 2.36 in (60 mm) wall outlet box (see Fig. 3). When installing directly into a wall, use the appropriate screw type for the wall material.
Diagram: Figure 2 shows mounting holes and subbase latching tabs.
Wiring
All terminal connections can be made to the back of the module. There are no field-adjustable/replaceable components inside the module.
Connect the controller and network cables to the appropriate wall module terminals as shown in Fig. 6 on page 3.
Caution: Risk of improper electrical contact. Screw-type terminal blocks are designed to accept no more than one 14 AWG (2.5 mm²) conductor. For multiple 14 AWG (2.5 mm²) wires connecting to one terminal, use a wire splice. Include a flexible wire with this wire group and connect the flexible wire to the individual terminal block.
Diagram: Figure 3 shows installation in a standard junction box or a 2.36 in (60 mm) wall outlet box.
Diagram: Figure 4 shows the dimensions of the wall module with an LCD display in inches (mm).
Connecting Wall Module Wires
Connect the terminal block shown in Fig. 6 as follows:
- For a single wire, strip 3/16 in (5 mm) of insulation from the conductor; for multiple wires connecting to a terminal, strip 1/2 in (13 mm) of insulation from the conductor. Refer to Fig. 5 for connecting wires for multiple TR40/42 wall modules.
- Insert the wire into the required terminal location and tighten the screw to make the termination.
- Examine and verify the wiring of the terminal connection shown in Fig. 6.
Table 1: Recommended Maximum Distance from Controller to Any Sylk Device
| Quantity and Type of Device | Unshielded Twisted Pair Cable, No Shield, Twisted or Smooth | Shielded Thermostat Cable, (Unshielded), With or Without Shield, Twisted or Smooth | |
|---|---|---|---|
| CALIBRE 18-24 AWG | CALIBRE 18-22 AWG | CALIBRE 24 AWG | |
| 10 wall modules, any type | 500 ft (150 m) | 400 ft (120 m) | 100 ft (30 m) |
| 4 Sylk field devices, any type (includes Zelix) | 400 ft (120 m) | 300 ft (100 m) | 100 ft (30 m) |
| 10 Sylk field devices, any type (except Zelix) | 400 ft (120 m) | 300 ft (100 m) | 100 ft (30 m) |
a For Spyder controllers, use the Resource Usage View in the Spyder tool to determine the maximum number of devices. For ComfortPoint™™ Open controllers, the maximum number of TR40/42 wall modules is 3.
b As a general rule, unshielded twisted pair cables (2 wires per cable only), with heavier gauge, without shielding, provide the best results for longer runs.
c The 100 ft (30 m) distance for standard thermostat cable is moderate, as it attempts to reduce the impact of any electrical noise source (including, but not limited to, variable frequency drives, electronic stabilizers, etc.). Shielded cables are recommended only if there is a need to reduce the effect of electrical noise.
d These distances also apply to shielded twisted pair cables.
Diagrams: Figure 5 shows options for connecting wires for multiple TR40/42 wall modules. Figure 6 shows terminal connections.
Bus Address Configuration of the Wall Module
Each wall module on a Sylk bus must use a different bus address, and multiple TR40/42 wall modules can be connected on a single Sylk bus. To change the bus address of a wall module, adjust the dual in-line package switches to match the desired bus address (1-15). Use the bus address label shown in Fig. 7 for reference. The default address for TR40 and TR42 modules is 1. The address on the wall module must match the address in the configuration tool.
Diagram: Figure 7 shows the bus address configuration label.
Connecting the Wall Module to the Subbase
When all wires have been connected, engage the top side and then snap it down as shown in Fig. 8. Consult Fig. 8.
Removing the Wall Module from the Subbase
To remove the wall module from the subbase, do the following:
- Locate the two pressure release buttons on the bottom of the inner front cover.
- Press each pressure release button with a screwdriver to detach the inner front cover from the subbase.
- Pull the wall module upward to detach it from the subbase.
Diagram: Figure 8 shows how to remove the wall module from the subbase.
Powering Up
The wall module will power up after it has been properly connected to the controller. When powered up for the first time, the wall module's LCD panel displays three screens for two seconds each, as shown in Figs. 9-11, while the configuration file loads. Once the configuration file has loaded and the startup screens have cycled, the LCD panel will display the startup screen. If these screens cycle continuously, it indicates that no program has been downloaded to the controller, or the wall module's bus addresses and the workstation configuration tool do not match.
For users of the Spyder/Niagara tool, refer to the TR40/42/TR40/42 Plus LCD Wall Module Installation Guide (Form 63-2741) to configure and load the user interface and desired parameters onto the wall module.
For users of ComfortPoint™™ Open, the user interface and parameters are automatically downloaded from the ComfortPoint™™ Open controller. No configuration is needed on the wall module.
Diagrams: Figure 9 shows the startup display of the TR42 wall module. Figure 10 shows the second startup display of the TR42 wall module. Figure 11 shows the third startup display of the TR42 wall module.
Trademarks
ComfortPoint™™ is a registered trademark of Honeywell International Inc.
LONMARK® is a registered trademark of LonMark Association.
BACnet® is a registered trademark of BACnet International.
Sylk® is a registered trademark of Honeywell International Inc.
TR40/42® is a registered trademark of Honeywell International Inc.
