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Toshiba HWT-1101F21SM3W-E - User Manual

Toshiba HWT-1101F21SM3W-E
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Hydro Unit -All In One Type-
Model name:
HWT-601F21SM3W-E
HWT-601F21ST6W-E
HWT-1101F21SM3W-E
HWT-1101F21MM3W-E
HWT-1101F21ST6W-E
HWT-1101F21MT6W-E
HWT-1101F21ST9W-E
HWT-1101F21MT9W-E
AIR TO WATER HEAT PUMP
Installation Manual
R32
English

Table of Contents

Questions and Answers

  • S
    Scott McneilAug 17, 2025
    Why is my Toshiba Heat Pump not heating or cooling properly?
    • D
      dawn19Aug 17, 2025
      If your Toshiba Heat Pump isn't heating or cooling the room adequately, or the water isn't hot enough, start by checking the remote controller's operation and temperature settings to ensure they are correct. Also, verify the function code setting using the function code table. Inspect the backup heater and bimetal thermostat. Confirm that the equipment capacity is sufficient for your needs. Finally, check that the temperature sensor is correctly positioned.
  • T
    Teresa HowardAug 20, 2025
    How to fix a blank remote controller screen on my Toshiba HWT-1101F21SM3W-E?
    • H
      Heather KirbyAug 20, 2025
      If nothing is displayed on the remote controller of your Toshiba Heat Pump, first check the power supply wiring to ensure it's properly connected. If the power supply is okay, check the settings using the DN codes.
  • A
    Audrey KennedyAug 22, 2025
    How to troubleshoot F23 error on Toshiba HWT-1101F21SM3W-E?
    • S
      Shannon MartinezAug 23, 2025
      To address the F23 error (Low pressure sensor error) on your Toshiba Heat Pump: * Check the connection (body or connection wiring) of the low pressure sensor. * Check the resistance value of the low pressure sensor.
  • T
    Thomas JohnsonAug 25, 2025
    How do I fix the F14 error on my Toshiba Heat Pump?
    • T
      Timothy RobinsonAug 26, 2025
      To fix the F14 error (TTW sensor error) on your Toshiba Heat Pump, check the resistance value and connection of the hot water cylinder sensor (TTW).
  • D
    David JonesAug 27, 2025
    How do I troubleshoot the F10 error on my Toshiba Heat Pump?
    • M
      Michael EnglishAug 27, 2025
      To address the F10 error (TWI sensor error) on your Toshiba Heat Pump, check the resistance value and connection of the water inlet temperature sensor (TWI).
  • S
    Stephen Mccoy MDAug 30, 2025
    What to do if my Toshiba HWT-1101F21SM3W-E has low water flow and error code A01?
    • C
      Clifford BrownAug 30, 2025
      If you're experiencing almost no or little water flow and see error code [A01] on your Toshiba Heat Pump, the following steps may help: * Release any trapped air from the pump completely. * Adjust the hydraulic pressure, considering the pipe height, and add water until the manometer displays the correct value or higher. * Clean the strainer to remove any blockages. * Widen the water path to the Hydro Unit or install a bypass valve to reduce resistance. * Check the wiring and components of the motorized 3-way valve for hot water supply.
  • J
    Jennifer BakerSep 1, 2025
    Why is hot water leaking from my Toshiba HWT-1101F21SM3W-E Heat Pump's overpressure valve?
    • R
      Roberto TaylorSep 2, 2025
      If hot water is leaking from the overpressure preventive valve of your Toshiba Heat Pump, it could be due to excessive hydraulic pressure. Adjust the hydraulic pressure, considering the pipe height, and replenish water until the manometer shows a value of set hydraulic pressure or more. Also, check if the expansion tank capacity is sufficient for the total water amount; if not, install another expansion tank. Finally, verify the air pressure in the expansion tank.
  • A
    amanda20Sep 4, 2025
    What does E04 error mean on my Toshiba HWT-1101F21SM3W-E Heat Pump?
    • T
      Tina DavisSep 4, 2025
      If your Toshiba Heat Pump displays error code E04, indicating a communication error between the Hydro Unit and Outdoor Unit, check the serial circuit for miswiring.
  • J
    Jennifer BeltranSep 6, 2025
    How to unlock the pump on my Toshiba HWT-1101F21SM3W-E with error A14?
    • A
      Angela KerrSep 6, 2025
      If your Toshiba Heat Pump's pump is locked and displaying error code [A14], it may be due to dust clogging the pump. To unlock it, insert a Phillips screwdriver into the hole and turn it left or right.
  • W
    wmooreSep 9, 2025
    What does E03 error mean on my Toshiba Heat Pump?
    • C
      Clarence ShepherdSep 9, 2025
      If your Toshiba Heat Pump displays error code E03, indicating a communication error between the Hydro Unit and the remote controller, check the remote controller connection.

Summary

General Information

System Combination

Describes various system configurations and component pairings.

Preparations for Installation

Precautions for Safety

General Safety Precautions

Covers general safety guidelines applicable to all installation and maintenance tasks.

Refrigerant Precautions

Highlights specific safety measures related to the R32 refrigerant used in the system.

Example of Hydro Unit Installation

Hydro Unit Installation

Refrigerant Piping

Details the requirements and procedures for installing refrigerant piping for the Hydro Unit.

Water Pipe

Covers specifications and installation guidelines for water piping connections.

Water Charging

Instructions for filling the system with water for space heating and domestic water circuits.

Electrical Installation

Covers safety and regulatory requirements for electrical connections to the Hydro Unit.

Electrical Supply;Cable Specifications

Earthing Arrangements

Emphasizes the importance of proper earthing for safety and equipment protection.

Group Control and Optional Controllers

Start Up and Configuration

Setting Hydro DN Codes

Details how to set various Digital Number (DN) codes for Hydro Unit functions.

Setting - Initial Setting

Main Setting Items

DN Settings

Settings by Purpose

Maintenance

Troubleshooting

Fault Symptoms

Lists common operational problems and their potential causes.

Defect Mode Detected by the Outdoor Unit

Defect Mode Detected by the Remote Controller

Technical Parameters

Toshiba HWT-1101F21SM3W-E Specifications

General IconGeneral
BrandToshiba
ModelHWT-1101F21SM3W-E
CategoryHeat Pump
LanguageEnglish

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