Installing the temperature probe - Johnson Controls - WRZ-PTR0000-0 - Wireless Device - WRZ-PTR0000-0 Series Temperature Sensor Probe Assemblies

WRZ-PTR0000-0 Series Temperature Sensor Probe Assemblies Installation Guide

Brand
Johnson Controls
Product name
WRZ-PTR0000-0 Series Temperature Sensor Probe Assemblies
Document type
Installation Guide
Part number
24-10332-29
Document revision
H
Revision date
2023-02-23
Language
English

Procedure

To install the WRZ-PTR0000-0 Series Temperature Sensor Probe assembly, complete the following steps:

  1. Peel off the protective paper from the factory-installed strip of adhesive foam tape on the back of the probe mounting strap.
  2. Mount the temperature sensor probe inside the refrigerator or freezer unit away from the front to avoid interference with the stored contents and to eliminate any false temperature spikes when the door opens. Clean the mounting surface first to ensure that the adhesive foam tape sticks to the surface.
    Note: The mounting surface, mounting strap, and ambient temperature must be at least 50°F (10°C) when you mount the temperature sensor probe with adhesive foam tape.
  3. Support the wire lead along the inside walls of the refrigerator or freezer unit to the WRZ-STR0000-2 Series Wireless Refrigerator or Freezer Temperature Transmitter and run the lead through the door gap or an existing hole designed for remote temperature sensor probe installation.
    Note: Do not use an existing hole designed for electrical voltage, as this affects the temperature reading. Do not drill a hole through the wall of the refrigerator or freezer unit for the wire lead unless approved by the refrigerator or freezer manufacturer, and also approved by the customer.
  4. If you use the door gap method for installation, secure the wire lead with adhesive foam tape where the lead passes through the door gap to protect it from excessive rubbing or getting caught in the door hinge.
  5. Remove the transmitter housing from its mounting base as shown in the following figure.
    Figure 1. Removing the transmitter housing from its mounting base

    Callout Description
    A Slot
    B Tamper-resistant set screw
    C Mounting base
    D Tabs
    E Sensor housing
    1. Loosen but do not remove the tamper-resistant set screw on the locking tab on the mounting base.
    2. Insert a coin into the slot in the top of the sensor housing and depress the locking tab on the mounting base to release the housing.
    3. Swing the sensor housing off the mounting base.
    4. Pull the bottom of the sensor housing down and off the tabs at the bottom of the mounting base.
    5. Reverse the steps to install the housing.
  6. Feed the wire lead through the slot on the bottom edge of the transmitter housing, tie a knot in the wire just inside the housing to act as a strain relief, and secure the wire ends to the terminal block as shown in the following figure.
    Figure 2. Wiring the WRZ-PTR0000-0 Series Temperature Sensor Probe assembly to the WRZ-STR000-2 Series Wireless Refrigerator or Freezer Temperature Transmitter

  7. Reverse the steps shown in Figure 1 to reinstall the transmitter housing on its mounting base.
    Refer to the WRZ-STR0000-2 Series Wireless Refrigerator or Freezer Temperature Transmitter and Probe Assemblies Installation Guide (Part No. 24-10332-10) for information on how to prepare the transmitter for operation.