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Topaz TZ-18B - User Manual

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Owner’s Manual
Models: TZ-12B - TZ-60B4, Digital Thermostat
Unit Specifications .......................................................................................... 2
Rating Information ........................................................................................... 2
Inspection ......................................................................................................... 3
General Description ......................................................................................... 3
Standard Features .......................................................................................... 3-4
Optional Features ............................................................................................. 4
Installation Instructions .................................................................................4-5
Unit Operation ..............................................................................................5-6
Preventative Maintenance ............................................................................. 6-7
Troubleshooting Guide .................................................................................8-9
Installing Replacement Parts ....................................................................10-11
Accessories .................................................................................................... 12
Replacement-Parts List .............................................................................13-14
Wiring Schematic, TZ-12B ........................................................................... 15
Wiring Schematic, TZ-18B ........................................................................... 16
Wiring Schematic, TZ-24B ........................................................................... 17
Wiring Schematic, TZ-36B ........................................................................... 18
Wiring Schematic, TZ-60B ........................................................................... 19
Wiring Schematic, TZ-60B3 ......................................................................... 20
Wiring Schematic, TZ-60B4 ......................................................................... 21
Are you equipped to
handle the heat?
Portable Air Conditioners
1-800-836-7432
Warning!
Improper installation, adjust-
ment, alteration, service, or
maintenance can cause injury
or property damage. Please
read instructions before install-
ing, operating or servicing the
TOPAZ unit.
Avertissement !
Le fait de modier ou de mal
installer, régler, réparer ou
entretenir cet appareil peut
entraîner des blessures ou des
dommages matériels. On doit
lire attentivement les directives
d’installation, d’utilisation et
d’entretien avant de manipuler
l’unité TOPAZ
This manual is the property
of the owner. Leave with the
unit when set-up and start-up
are complete. TEMP-AIR
Inc. reserves the right to
change design and specica-
tions without prior notice.

Table of Contents

Questions and Answers

  • B
    brandonwaltersAug 16, 2025
    Why is my Topaz TZ-18B compressor running but not cooling enough?
    • C
      christopher90Aug 16, 2025
      If the compressor in your Topaz Air Conditioner runs, but the condenser fan does not, and you're experiencing insufficient cooling, start by checking for any loose or defective wires and repair them. Replace any shorted or open condenser motor capacitors. If the motor is bad, replace it. Insufficient airflow through the evaporator coil could also be the cause. Check for improper blower rotation and correct it if necessary. Replace a dirty air filter, clean a dirty evaporator coil, remove any obstructions, and defrost any ice on the evaporator coil. If the refrigerant is low, repair the leak and recharge it. Finally, ensure that the unit is properly sized for the load; if not, consider adding additional air conditioners.
  • R
    Robin ThomasAug 21, 2025
    How to fix a noisy Topaz TZ-18B?
    • S
      sandraboothAug 21, 2025
      If your Topaz Air Conditioner is operating noisily, it could be due to several factors. For TZ-60B3&4 models, check for improper compressor rotation and correct it if necessary. Inspect all panels and components to ensure they are securely fastened, tightening as needed. Also, check motors, blower wheels, drives, bearings, and shafts, tightening them as required. If the noise persists, the motor, compressor, or bearing might be bad and need replacement.
  • J
    Jason McclureAug 26, 2025
    What to do if my Topaz Air Conditioner is leaking water?
    • M
      Michael BarnesAug 26, 2025
      If your Topaz Air Conditioner is leaking water from the pan, it could be due to several reasons. The drain pan might be plugged, so remove any obstructions. Check the connections of the evaporator, drain, or condensate pump hose and tighten them if necessary. If the drain pan is leaking, repair or replace it. Also, inspect the condensate pump for defects, check the condensate hose for obstructions or excessive height above the pump (12 ft. max.), clear or reroute the tube as needed, and check the pump and wiring, replacing if required.
  • K
    Katie HawkinsAug 31, 2025
    Why does my Topaz TZ-18B's evaporator coil keep freezing?
    • C
      Christopher MarksAug 31, 2025
      If the evaporator coil in your Topaz Air Conditioner is freezing and the unit shuts down, it could be due to obstructed evaporator airflow. Check for any obstructions and clean the filter and coil if required. Also, verify that the thermostat freeze protection is working by ensuring the freeze sensor is mounted to the coil.
  • J
    James TaylorNov 5, 2025
    Why my Topaz TZ-18B unit does not run?
    • S
      smithsarahNov 5, 2025
      If your Topaz Air Conditioner isn't running, there could be several reasons. First, check the external power supply and reset the LCDI cord. Also, inspect the circuit breakers and fuses, replacing or resetting them if needed. If 'tF' is indicated, the condensate tank may be full and needs emptying. Verify the Mode setting and temperature setpoint on the thermostat are correct for the room temperature, resetting if necessary. Check the thermostat display and response; if it's inoperable, consider replacing it. If error codes like rE, FE, CF, Fr, or tF appear, address the specific sensor or component failure, such as repairing/replacing sensors, checking for compressor problems, or emptying the condensate tank. For electrical panel issues like a defective transformer, blown fuse, loose wire,...
  • C
    Christine AguilarNov 10, 2025
    What to do if the evaporator fan runs but the compressor doesn't in my Topaz Air Conditioner?
    • T
      Tammy WuNov 10, 2025
      If the evaporator fan in your Topaz Air Conditioner runs, but the compressor and condenser fan do not, it could be due to several reasons. The thermostat might be satisfied, meaning there's no demand for cooling at the moment. Alternatively, the thermostat could be in compressor start delay mode; wait at least five minutes after setting it to COOL. Ensure the thermostat is set to COOL mode. Check if the condensate jumper plug or condensate pump is properly installed. Inspect the high-pressure switch and press the reset button, replacing the switch if necessary. Look for loose or defective wires, securing contacts or replacing wires as needed. A shorted or open run capacitor may also be the cause, requiring replacement. If none of these resolve the issue, the compressor itself may be defect...

Summary

Unit Specifications and Rating Information

Product Information and Features

Inspection Procedures

Steps for unit inspection upon delivery and reporting damage.

General Description

Overview of Topaz Portable Air Conditioners' design and construction.

Standard Features Overview

Details on serviceability, safety switch, digital controls, filters, and condensate.

Installation Instructions

Electrical Supply Requirements

Guidance on determining and providing proper power supply for units.

Unit Operation

Unit Placement and Setup

Instructions for correctly positioning the unit for optimal performance.

Cooling Mode Operation

Detailed steps for operating the unit in cooling mode.

Fan Mode Operation

Instructions for using the unit's fan-only mode.

Additional Functions and Maintenance

Timer and Sleep Functions

How to use the timer for delayed operation and the sleep mode.

Filter Maintenance

Instructions for inspecting and replacing air filters.

Coil and Blower Cleaning

Procedures for cleaning evaporator/condenser coils and blowers.

Belt Tension Check

Checking belt condition, tension, and alignment for TZ-60B models.

Sheave Adjustment for TZ-60 B Models

Troubleshooting Guide

Installing Accessories and Replacement Parts

Ceiling Panel Duct Kit Installation

Steps to install the ceiling panel duct kit.

Condensate Pump Installation

Instructions for installing the condensate pump on specific models.

Combination Fan and Blower Replacement

Procedure for replacing the fan and blower assembly on TZ-18B, TZ-24B, TZ-36B.

Component Replacement

Condenser Fan Motor Replacement

Steps to replace the condenser fan motor on TZ-60B models.

Evaporator Fan Motor Replacement

Procedure for replacing the evaporator fan motor on TZ-60B models.

Accessories

Replacement Parts List

Wiring Schematic TZ-12 B

Wiring Schematic TZ-18 B

Wiring Schematic TZ-24 B

Wiring Schematic TZ-36 B

Wiring Schematic TZ-60 B

Wiring Schematic TZ-60 B3

Wiring Schematic TZ-60 B4

Topaz TZ-18B Specifications

General IconGeneral
BrandTopaz
ModelTZ-18B
CategoryAir Conditioner
LanguageEnglish

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