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Unique WS Series - User Manual

Unique WS Series
42 pages
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Service Manual
And
Advanced air conditioning systems

Table of Contents

Questions and Answers

  • S
    Sharon MurrayAug 21, 2025
    Why is my Unique WS Air Conditioner not starting?
    • K
      Karen MorrisAug 21, 2025
      Your Unique Air Conditioner might not be starting due to a few reasons: * The power supply to the unit might not be properly connected. * A fuse might be blown. * The electric supply wall socket could be defective. To resolve this, check the power plug connection in the wall socket. If the red LED on the RST Controller is off, change the RST wires. If the LED is on, check the phase voltage. Also, reset the automatic circuit breaker or replace the line fuse. If the wall socket is defective, repair or replace it.
  • T
    Tina PayneSep 4, 2025
    Why does my Unique WS Air Conditioner only have the indoor fan motor working?
    • B
      Brandon RobertsSep 4, 2025
      If only the indoor fan motor works on your Unique Air Conditioner, even when cooling or heating is desired, the cause may be: 1. The selected mode is on Fan Only, or on Cool when heating is desired. 2. The temperature is set to a value that is too high (in Cool mode). 3. A faulty compressor. To solve this, check if the room thermostat is on the desired mode and select the correct mode. Observe the temperature setting on the room thermostat. If the compressor is faulty, replace it.
  • M
    Matthew KennedySep 2, 2025
    What causes gas pressure to be too high in Unique WS?
    • M
      matthew02Sep 2, 2025
      High gas pressure in your Unique Air Conditioner may be due to: 1. A clogged water strainer. 2. Condenser cooling water being too warm. 3. No water circulation in the heat exchanger. To resolve this, clean the strainer, check the cooling tower (or the cooling water source) for proper operation, and clean or replace the heat exchanger if it is clogged.
  • C
    Carolyn KimSep 1, 2025
    What causes gas pressure to be too low in Unique WS Air Conditioner?
    • C
      castillocarolynSep 1, 2025
      Low gas pressure in your Unique Air Conditioner can be caused by: 1. A clogged air filter. 2. A faulty fan capacitor. 3. A faulty fan motor. 4. Air discharge shutters being too closed. 5. A lack of refrigerant. 6. Condenser cooling water being too cold. To solve this, clean the filter, replace the capacitor, replace the fan motor, open the air discharge shutters, check for leaks and add refrigerant, and check the cooling tower (or the cooling water source) for proper operation.
  • G
    Gabrielle EdwardsAug 30, 2025
    What to do if my Unique Air Conditioner has low capacity?
    • D
      Donna NormanAug 31, 2025
      If your Unique Air Conditioner has low capacity, it could be due to: * A lack of refrigerant, causing ice formation on the evaporator coil (in Cool mode). * Clogged air filters. To fix this, have the unit charged according to the nameplate after locating the gas leak. Also, clean the filters.
  • K
    Kathryn HansenAug 29, 2025
    What to do if compressor motor is not running at all in Unique WS Air Conditioner?
    • S
      solismarkAug 29, 2025
      If the compressor motor is not running at all in your Unique Air Conditioner, it might be due to: 1. Failure in the compressor motor magnetic contactor. 2. Compressor motor winding failure. To fix this, replace the faulty contactor or replace the compressor.
  • L
    Laura StevensonAug 27, 2025
    Why is the indoor fan not running at all in my Unique WS?
    • J
      Jason RossAug 28, 2025
      If the indoor fan is not running at all in your Unique Air Conditioner, it could be due to: 1. Failure in the motor capacitor. 2. No voltage out of the P.C.B. assembly for the fan motor. 3. Motor winding failure. To resolve this, replace the capacitor, replace the P.C.B. assembly, or replace the fan motor.
  • P
    Paul HuntAug 27, 2025
    What to do if my Unique Air Conditioner only blows air but no cooling or heating?
    • L
      Lauren KnightAug 27, 2025
      If your Unique Air Conditioner's fan motor is working, but there is no cooling or heating, it could be due to: 1. The overload safety device on the compressor is cut out due to high temperature. 2. The compressor run capacitor is burnt. 3. The compressor winding is shorted. To address this, switch off the power and try again after one hour. Replace the compressor run capacitor, and replace the compressor if needed.
  • S
    Shelia WiseAug 25, 2025
    Why is there no air supply at the indoor unit of my Unique WS Air Conditioner?
    • E
      Ebony CarrollAug 25, 2025
      A lack of air supply at the indoor unit of your Unique Air Conditioner can be caused by: 1. The indoor fan motor being blocked or turning slowly. 2. The indoor fan motor capacitor being burnt. 3. The indoor fan motor winding being burnt. 4. Clogged air filters. To fix this, check the voltage and repair the wiring if necessary. Also, check if the indoor fan wheel is tight on the motor shaft and tighten if needed. Replace the indoor fan motor capacitor, replace the indoor fan motor, and clean the filters.
  • K
    Kelly PetersonAug 23, 2025
    What causes Freezing Conditions at Evaporator Coil in Unique WS Air Conditioner?
    • E
      Emma GibsonAug 23, 2025
      Freezing conditions at the evaporator coil of your Unique Air Conditioner may occur due to: * Clogged air filter. * Faulty capacitor. * Faulty fan motor. * Air discharge shutters being too closed. * Lack of refrigerant. To address this, clean the filter, replace the capacitor, replace the fan motor, open the air discharge shutters, and check for leaks and add refrigerant.

Summary

SAFETY FIRST!

INTRODUCTION

Product Overview

Overview of UNIQUE-WS air conditioners, their applications, and features.

Manufacturing Options

Describes horizontal/vertical execution and standard layout setups (SL, SR, FL, FR).

Nameplate Information

Details the information found on the unit's nameplate for identification.

TECHNICAL DATA TABLES

WS Package Units

Technical specifications for WS Series Package Units, including capacities and dimensions.

WSC Water Source Console Units

Technical specifications for WSC Water Source Console units, covering various parameters.

DIMENSIONS AND WEIGHTS

Split Condenser Units

Details the dimensions, weights, and refrigerant tubing connections for split condenser units.

HEATING ELEMENT RECOMMENDATIONS

Heating Element Specifications

Provides recommendations for heating element kW, current, and fuse amp for different models.

REFRIGERATION CYCLES

Cooling Only Cycle

Diagram illustrating the refrigeration cycle for cooling-only operation.

Heat Pump Cycle

Diagram illustrating the refrigeration cycle for heat pump operation.

INSTALLATION INSTRUCTIONS

General Installation Guidelines

General instructions and precautions for installing the air conditioner unit.

Electrical Requirements

Specifies the electrical requirements and safety considerations for installation.

Typical WS Installation

Illustrates the typical installation process with numbered components.

Unit Location and Installation

Guidance on selecting the unit location and mounting methods.

Connecting the Water Piping

Instructions for connecting the water piping, including strainer and cut-off valves.

Connecting the Drain Hose

Instructions for connecting the drain hose to the unit.

Connecting the Ducting Work

Recommendations for connecting ducting for optimal air conditioning results.

Connecting the Temperature Sensor Bulbs

Information on connecting and replacing temperature sensor bulbs.

CONTROL SYSTEM AND POWER CONNECTION

Installing the Thermostat

Step-by-step guide for installing the wall-mounted thermostat.

Terminal Box Location

Details the location of the terminal box for single-phase units.

Terminal Box Location - 3 Phase Unit

Details the location of the terminal box for three-phase units.

ELECTRICAL WIRING DIAGRAMS

Single Phase Cooling Only - Model 260 U

Wiring diagram for single-phase cooling-only models.

3 Phase Cooling Only - Model 260 U

Wiring diagram for three-phase cooling-only models.

Single Phase with Electrical Heating Elements - Model 260 U

Wiring diagram for single-phase units with electrical heating elements.

3 Phase with Electrical Heating Elements - Model 260 U

Wiring diagram for three-phase units with electrical heating elements.

Single Phase with Heat Pump - Model 260 U

Wiring diagram for single-phase units with heat pump functionality.

3 Phase With Heat Pump - Model 260 U

Wiring diagram for three-phase units with heat pump functionality.

TROUBLESHOOTING GUIDE

Troubleshooting Notes

Important notes and general advice before starting troubleshooting.

Failure Code Troubleshooting

Guide to troubleshooting based on displayed failure codes (ER1-ER9).

General Troubleshooting

Addresses common symptoms and their probable causes and corrective actions.

Poor Cooling Troubleshooting

Troubleshooting steps for issues related to poor cooling performance.

Poor Heating Troubleshooting

Troubleshooting steps for issues related to poor heating performance.

CONTROL PROGRAMS AND OPERATION INSTRUCTIONS

General Control and Operation

Explains system protection, restart procedures, and sensor controls.

Modes of Operation and Uses

Details different operating modes like Cooling, Heating, and Auto.

Wall Mounted Thermostats a 260 U

Explains the functions and display of the wall-mounted thermostat.

Unique WS Series Specifications

General IconGeneral
BrandUnique
ModelWS Series
CategoryAir Conditioner
LanguageEnglish