Mitsubishi Electric PAR-W31MAA User manual

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Prior to use, thoroughly read the instructions in this manual to use the product correctly.

Retain for future reference.

Make sure that this manual and the Installation Manual are passed on to any future users.

To ensure safety and proper operation of the remote controller, the remote controller should

only be installed by qualified personnel.

Hot Water Heat Pump & Chilling Units

Remote Controller PAR-W31MAA

Instruction Book

Product features

Full-dot LCD display with large characters

for easy viewing

Feature 1

Feature 2

Feature 3

Simple button arrangement

Large, easy-to-press buttons

Large, easy-to-see display

Buttons are arranged according to

usage to allow for intuitive navigation.

Unit1 FRI

Contents

Safety Precautions............................4

Part names and functions ................7

Controller interface..............................................7

LCD.....................................................................9

Introduction......................................10

Menu structure..................................................10

Icon explanations..............................................11

Basic operations .............................12

Power ON/OFF.................................................12

Operation mode and set temperature settings..13

Operation setting screen...................................14

Sensor list.........................................................16

Menu operations..............................19

Main menu list...................................................19

Sub remote controller restrictions.....................19

Operations in Main menu screen......................20

Function settings.............................21

Date/Time..........................................................21

Schedule setting ...............................................22

Using Weekly timer...........................................23

Using Period timer ............................................26

Using Power Save ............................................29

Contrast ............................................................33

Function setting.................................................34

Running information..........................................37

Maintenance.....................................39

Regular checks................................40

Troubleshooting ..............................41

Error information...............................................41

Inquiries ............................................................43

Guide to preventive maintenance

and consumable parts replacement

cycles ...............................................44

Specifications/Others .....................45

Specifications....................................................45

Trial run.............................................................45

Safety Precautions

►Thoroughly read the following safety precautions before using the unit.

►Observe these precautions carefully to ensure safety.

►After reading this manual, pass it on to the end user to retain for future

reference.

►Keep this manual for future reference and refer to it as necessary. This

manual should be made available to those who repair or relocate the

controller. Make sure that the manual is passed on to any future users.

: indicates a hazardous situation which, if not avoided,

could result in death or serious injury.

: indicates a hazardous situation which, if not avoided,

could result in minor or moderate injury.

: addresses practices not related to personal injury, such

as product and/or property damage.

General precautions

Do not install the unit in a place where large amounts of oil, steam, organic

solvents, or corrosive gases, such as sulfuric gas, are present or where

acidic/alkaline solutions or sprays are used frequently. These substances can

compromise the performance of the unit or cause certain components of the

unit to corrode, which can result in electric shock, malfunctions, smoke, or

fire.

To reduce the risk of shorting, current leakage, electric shock, malfunctions,

smoke, or fire, do not wash the controller with water or any other liquid.

To reduce the risk of electric shock, malfunctions, smoke or fire, do not

operate the switches/buttons or touch other electrical parts with wet hands.

When disinfecting the unit using alcohol, ventilate the room adequately. The

fumes of the alcohol around the unit may cause a fire or explosion when the

unit is turned on.

To reduce the risk of injury or electric shock, before spraying a chemical

around the controller, stop the operation and cover the controller.

To reduce the risk of injury or electric shock, stop the operation and switch off

the power supply before cleaning, maintaining, or inspecting the controller.

If any abnormality (e.g., burning smell) is noticed, stop the operation, turn off

the power switch, and consult your dealer. Continued use of the product may

result in electric shock, malfunctions, or fire.

Properly install all required covers to keep moisture and dust out of the

controller. Dust accumulation and water can cause electric shock, smoke, or

fire.

To reduce the risk of fire or explosion, do not place flammable materials or

use flammable sprays around the controller.

To reduce the risk of damage to the controller, do not directly spray

insecticide or other flammable sprays on the controller.

To reduce the risk of environmental pollution, consult an authorized agency

for proper disposal of remote controller.

To reduce the risk of electric shock or malfunctions, do not touch the touch

panel, switches, or buttons with a pointy or sharp object.

To reduce the risk of injury and electric shock, avoid contact with sharp edges

of certain parts.

To avoid injury from broken glass, do not apply excessive force on the glass

parts.

To reduce the risk of injury, wear protective gear when working on the

controller.

Precautions for moving or repairing the controller

The controller should be repaired or moved only by qualified personnel. Do

not disassemble or modify the controller.

Improper installation or repair may cause injury, electric shock, or fire.

To reduce the risk of shorting, electric shock, fire, or malfunction, do not

touch the circuit board with tools or with your hands, and do not allow dust to

accumulate on the circuit board.

Additional precautions

To avoid damage to the controller, use appropriate tools to install, inspect, or

repair the controller.

This controller is designed for exclusive use with the Building Management

System by Mitsubishi Electric. The use of this controller for with other

systems or for other purposes may cause malfunctions.

To avoid discoloration, do not use benzene, thinner, or chemical rag to clean

the controller. To clean the controller, wipe with a soft cloth soaked in water

with mild detergent, wipe off the detergent with a wet cloth, and wipe off water

with a dry cloth.

To avoid damage to the controller, provide protection against static electricity.

If the supply cord is damaged, it must be replaced by the manufacturer, its

service agent or similarly qualified persons in order to avoid a hazard.

This appliance is intended to be used by expert or trained users in shops, in

light industry and on farms, or for commercial use by lay persons.

This appliance is not intended for use by persons (including children) with

reduced physical, sensory or mental capabilities, or lack of experience and

knowledge, unless they have been given supervision or instruction

concerning use of the appliance by a person responsible for their safety.

Children should be supervised to ensure that they do not play with the

appliance.

Part names and functions

Controller interface

①

⑥

②③④

⑦ ⑧ ⑨ ⑩

⑤

Function buttons

①[ON/OFF] button

Press once to turn the controller on. Pressing it

again brings up a confirmation screen. When it

appears, press the [F3] button to turn the

controller off.

②[Select] button

Press to save the setting.

③[Return] button

Press to return to the previous screen. (May not

return depending on the screen)

④[Menu] button P. 20

Press to bring up the Main menu (Main display

depending on the screen).

⑤Backlit LCD

Operation settings will appear.

When the backlight is off, pressing any button

turns the backlight on and it will stay lit for a

certain period of time depending on the screen.

When the backlight is off, pressing any

button turns the backlight on and does not

perform its function.

⑥ON/OFF lamp

This lamp lights up in green while the unit is in

operation. It blinks while the remote controller is

starting up or when there is an error.

The functions of the function buttons change

depending on the screen. Refer to the button

function guide that appears at the bottom of the LCD

for the functions they serve on a given screen.

⑦⑧⑨⑩⑦⑧⑨⑩

⑦Function button [F1]

Main display: Press to switch the operation

mode.

Main menu: Disabled

⑧Function button [F2]

Main display: Press to decrease the set water

temperature.

Main menu: Press to select icons on the left.

⑨Function button [F3]

Main display: Press to increase the set water

temperature.

Main menu: Press to select icons on the right.

⑩Function button [F4]

Main display: Press to display the next page.

Main menu: Disabled

Main display Main menu

Function guide

Unit1 FRI

Schedule・Power Save

Unit1 FRI

LCD

▌Main display

3/3

②

④

⑧

⑤

⑥

①

⑦

③

⑨

①Remote controller name

Remote controller name appears here.

(Four-digit code will appear during an error or a

preliminary error. Refer to the Installation

Manual.)

②Date and time

The current date, day of the week, and time

appear here. (Refer to the Installation Manual.)

③

Appears while the units are operated in the

energy-save mode. (Will not appear on some

models of connected units)

④Number of connected units

The number of currently operating units and the

total number of units appear here.

⑤Button function guide

Functions of the corresponding buttons appear

here.

⑥Operation mode P. 13

Operation mode appears here.

⑦Water temperature

The temperature of the water currently

controlled appears here.

⑧Set water temperature

The water temperature currently set appears

here.

⑨Centralized controller

The icon for whether a system controller is

connected appears on the right of the energy-

save mode icon.

The display contents may vary depending

on the connected unit model.

Unit1 FRI

Introduction

• Do not attempt to install the remote controller by yourself. (Safety and functionality

cannot be guaranteed.)

• After installation work is completed, carefully read the "Items to check during the trial

run" included in the Installation Manual.

• After the installation work has been completed by the designated installer, the service

agency must carry out a trial run in the presence of the user, and the user must

receive the explanation of the correct use of the system for safely.

• Ensure that you receive the Installation Manual check list.

Menu structure

Pressing the [Menu] button brings up the Main menu screen.

Refer to page 20 for details on the Main menu screen operations.

Schedule ·········································· P. 22

▌Weekly timer�� P. 23

▌Period timer�� P. 26

▌Power Save�� P. 29

Error information ·········································· P. 41

Running information ·········································· P. 37

Initial settings ·········································· Refer to the Installation Manual.

▌Date/Time�� Refer to the Installation Manual.

▌Date Format�� Refer to the Installation Manual.

▌Daylight saving time �� Refer to the Installation Manual.

▌Language �� Refer to the Installation Manual.

▌Contrast�� Refer to the Installation Manual.

▌RC name �� Refer to the Installation Manual.

▌Main/Sub�� Refer to the Installation Manual.

Main display

Operation setting

Sensor list

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