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IVT 12PHR-N - User Manual

IVT 12PHR-N
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ENGLISH
SPLIT AIR/AIR HEAT PUMP
OPERATION MANUAL
"Plasmacluster" and "Device of a
cluster of grapes" are registered
trademarks or trademarks of Sharp
Corporation.
12PHR-N
SUOMI AKSNEVSKSRON
SPLIT LUFT/
LUFT VARMEPUMPE
BRUKSANVISNING
ILMALÄMPÖPUMPPU
KÄYTTÖOHJE
LUFTVÄRMEPUMP
ANVÄNDARHANDLEDNING

Table of Contents

Other manuals for IVT 12PHR-N

Preview: Service Manual
Service Manual88 pages

Questions and Answers

  • K
    Kenneth AndersonJul 30, 2025
    What to do if the IVT Air Conditioner remote control signal is not received?
    • C
      Carrie CookJul 31, 2025
      If the IVT Air Conditioner remote control signal isn't being received, there are several potential causes. First, ensure the batteries aren't dead by installing new ones, making sure they are installed in the correct direction. Also, check if any lighting fixtures are too close or if a fluorescent lamp is flickering; if so, change the light position or install a new fluorescent lamp. If a Sevick light (Hitachi) is in use, replace it or change its position. Ensure you are operating the remote from an appropriate position/angle. Finally, check for open or short circuits in the wiring of the light receiving section and replace the wires if necessary.
  • R
    Ryan HoustonAug 4, 2025
    Why does the compressor of my IVT 12PHR-N not start?
    • M
      Michael BlackburnAug 4, 2025
      Several issues can prevent the compressor in your IVT Air Conditioner from starting. Check for erroneous inter-unit connections and correct the wiring. A damaged IPM, dried-up electrolytic capacitor, or a blown outdoor unit fuse could also be the cause; in these cases, replace the IPM, electrolytic capacitor, or fuse/diode bridge (also consider replacing the outdoor unit PWB assembly). Ensure the power supply voltage is 200V or higher. Finally, compressor lock, a temperature fuse error, EEEPROM error, or AC over current error might be the problem; try applying an external impact to the compressor or replacing the compressor. You might also need to replace the terminal or outdoor unit PWB.
  • D
    Donna MooreAug 8, 2025
    How to reduce noise in TV/radio caused by IVT Air Conditioner?
    • C
      Chelsea WeberAug 8, 2025
      To reduce noise in your TV/radio caused by the IVT Air Conditioner, ensure the grounding wires are properly connected. Also, try moving the TV/radio further away from the outdoor unit.
  • M
    Maria MorenoAug 13, 2025
    What to do if IVT 12PHR-N Air Conditioner stops and restarts repeatedly?
    • P
      patty84Aug 13, 2025
      If your IVT Air Conditioner stops and restarts every few minutes, this could be due to a dried-up electrolytic capacitor, which would require replacing the electrolytic capacitor. Another possible cause is a layer short-circuit in the expansion valve coil, in which case you should replace the coil.
  • S
    Shane OrtizAug 17, 2025
    Why louvres of my IVT 12PHR-N Air Conditioner do not move?
    • A
      Angela ClarkAug 17, 2025
      If the louvres on your IVT Air Conditioner aren't moving, check if they are caught in the sliding section and remove or correct any obstructions. Also, ensure the connectors (CN13, CN16, CN19) on the relay PWB are correctly installed on the louver motor side. Finally, check for any contact of solder on the PWB (connector section on PWB) and correct the contacting section.
  • A
    Alexis HunterAug 21, 2025
    Why the indoor unit fan speed of my IVT 12PHR-N Air Conditioner does not change?
    • L
      laurentownsendAug 21, 2025
      If the indoor unit fan speed of your IVT Air Conditioner isn't changing, it could be due to an open-circuit in, or disconnection of, the heat exchanger thermistor (TH2) during heating operation. In this case, replace the thermistor or install it correctly. It is also possible that the remote control is not designed to allow fan speed changes in the current operation mode, so this should be explained to the user.
  • C
    Chad BrownAug 25, 2025
    How to fix an IVT Air Conditioner indoor unit that does not turn on?
    • A
      Abigail EvansAug 26, 2025
      If the indoor unit of your IVT Air Conditioner does not turn on, it could be due to a cracked PWB (cracked pattern), or an open-circuit in FU1 (250 V, 3.15 A). In either case, replace the PWB.

Summary

Building Regulations

Safety Precautions

General Warnings

Key safety warnings for power cord, direct air exposure, and object insertion into the unit.

General Cautions

Cautions for ventilation, wet hands, circuit breaker use, outdoor unit checks, and usage restrictions.

Part Names

Indoor Unit Components

Diagram and labels for all parts of the indoor air conditioner unit.

Outdoor Unit Components

Diagram and labels for all parts of the outdoor air conditioner unit.

Remote Control

LCD Display Elements

Explains the symbols and indicators on the remote control's Liquid Crystal Display.

Using the Remote Control

Loading Batteries

Instructions for correctly installing AAA batteries into the remote control.

Remote Control Operation

Guidance on pointing the remote, signal range, and operational cautions.

Setting Current Clock Time

Steps to set the current time, choosing between 12-hour and 24-hour modes.

Setting Air Purifying Filter

Tips on Saving Energy

Energy Saving Strategies

Tips on temperature, drafts, airflow, filter cleaning, and timer use for efficiency.

Basic Operation

Mode and Temperature Settings

How to select operation modes (AUTO, HEAT, COOL, DRY) and set desired temperatures.

Fan Speed Control

Instructions for adjusting the fan speed to AUTO, SOFT, LOW, or HIGH.

Auto Mode Operation

Explanation of AUTO mode's automatic selection based on room and outdoor temperatures.

Indicator Panel

Display Panel Information

How the indicator panel changes with the DISPLAY button and what temperatures are shown.

Full Power Operation

Activating and Cancelling Full Power

How to activate maximum power operation for rapid cooling/heating and how to cancel it.

Adjusting Air Flow Direction

Vertical Airflow Control

How to set the desired vertical air flow direction using the remote control.

Horizontal Airflow Control

How to set the desired horizontal air flow direction using the remote control.

AUTO Airflow Behavior

Details automatic louvre movement in COOL, HEAT, and DRY modes for optimal circulation.

Plasmacluster Operation

Activating and Cancelling Plasmacluster

How to turn the Plasmacluster ion function on and off for air purification.

Self Clean Operation

Activating and Cancelling Self Clean

How to start and stop the Self Clean operation to dry the unit's interior.

Timer Functions

One-Hour Off Timer

How to set the unit to automatically turn off one hour after activation.

Timer Off Operation

Steps to set a timer to turn the unit off at a specified time.

Timer Off Auto Sleep

How the unit automatically adjusts temperature for comfort during Timer Off operation.

Timer On Operation

Setting Timer On

Instructions to set the unit to turn on at a desired future time.

Cancelling Timer Settings

How to cancel all timer settings (ON, OFF, and One-Hour OFF) at once.

Combined Timer Use

Guidance on using ON and OFF timers together for scheduled operation.

Special Operation Modes

10°C Heating Operation

How to activate the 10°C heating mode to prevent room freezing.

Auxiliary Mode Operation

How to operate the unit using the AUX button when the remote is unavailable.

Maintenance

Pre-Maintenance Safety Checks

Safety steps and checks required before performing any maintenance on the unit.

Filter Cleaning Procedure

Step-by-step guide to remove, clean, and reinstall air filters for optimal performance.

Unit and Remote Cleaning

Instructions for cleaning the air conditioner unit casing and the remote control.

Open Panel Removal and Reattachment

How to safely remove and reattach the front open panel for cleaning access.

Seasonal Maintenance

Post-Season Maintenance Tasks

Recommended actions for maintaining the unit after the cooling/heating season.

Pre-Season Maintenance Tasks

Recommended actions for preparing the unit before the start of a new season.

Air Purifying Filter Replacement

Guidance on when and how to replace the air purifying filters for effective filtration.

Filter Disposal Guidelines

Instructions on how to properly dispose of used air purifying filters.

Additional Operation Notes

Operating Temperature Range

Specifies the acceptable indoor and outdoor temperature limits for cooling and heating.

Power Failure and Recovery

How the unit behaves after a power failure and the need to reset timers.

Preheating and De-icing Functions

Explanation of preheating to prevent cold air and de-icing for the outdoor unit.

Heating Efficiency Factors

Factors affecting heating efficiency and considerations for using additional heaters.

Before Calling for Service

Non-Malfunction Conditions

Lists normal operating conditions that might be mistaken for equipment malfunctions.

Troubleshooting Unit Operation Issues

Checks for unit failure to operate or ineffective heating/cooling.

Troubleshooting Remote Signal Issues

Checks for problems with the remote control signal reception.

IVT 12PHR-N Specifications

General IconGeneral
BrandIVT
Model12PHR-N
CategoryAir Conditioner
LanguageEnglish

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