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 WT05312X01

GB

CITY MULTI R410A SERIES HOT WATER SUPPLY, AIR TO 
WATER, and FLOW TEMP. CONTROLLER Remote Controller
 PAR-W21MAA

Installation Manual

This instruction manual describes how to install the Remote Controller for CITY MULTI R410A SERIES HOT WATER SUPPLY, AIR TO WATER, and 
FLOW TEMP. CONTROLLER. Please read this manual thoroughly and install the remote controller accordingly. For information on how to wire and 
install CITY MULTI R410A SERIES HOT WATER SUPPLY, AIR TO WATER, and FLOW TEMP. CONTROLLER Remote Controller, refer to the 
installation manual. After the installation, hand over this manual to users.

 1

Safety Precautions

Read these Safety Precautions and perform installation work accordingly.

The following two symbols are used to dangers that may be caused by incorrect use and their degree:

After reading this installation manual, give it and units installation manual to the end user.

The end user should keep this manual and units installation manual in a place where he or she can see it at anytime. When someone moves or 
repairs the PAR-W21MAA, make sure that this manual is forwarded to the end user.

  2

Confirming the Supplied Parts

 Confirm that the box includes the following parts, in addition to this installation manual:

 1. Remote controller (cover, body) ................................................................................ 1
 2. Cross recessed pan head screw (M4 

u

 30) ............................................................... 2

 3. Wood screw (4.1 

u

 16, used for directly hooking to the wall) .................................... 2

 4. Caution label (in 16 languages)................................................................................. 1
Use the cable specified in the Installation Manual that comes with the units for remote controllers.

 WARNING

This symbol denotes what could lead to serious injury or death if you misuse the PAR-W21MAA.

 CAUTION

This symbol denotes what could lead to a personal injury or damage to your property if you misuse the PAR-W21MAA.

 WARNING

 CAUTION

Ask your dealer or technical representative to install the unit.

Any deficiency caused by your own installation may result in an electric 
shock or fire.

Install in a place which is strong enough to withstand the weight of the 
PAR-W21MAA.

Any lack of strength may cause the PAR-W21MAA to fall down, resulting in 
personal injury.

Firmly connect the wiring using the specified cables. Carefully check 
that the cables do not exert any force on the terminals.

Improper wiring connections may produce heat and possibly a fire.

Never modify or repair the PAR-W21MAA by yourself.

Any deficiency caused by your modification or repair may result in an 
electric shock or fire.
Consult with your dealer about repairs.

Ensure that installation work is done correctly following this 
installation manual.

Any deficiency caused by installation may result in an electric shock or fire.

All electrical work must be performed by a licensed technician, 
according to local regulations and the instructions given in this 
manual.

Any lack of electric circuit or any deficiency caused by installation may 
result in an electric shock or fire.

Do not move and re-install the PAR-W21MAA yourself.

Any deficiency caused by installation may result in an electric shock or fire.
Ask your distributor or special vendor for moving and installation.

To dispose of this product, consult your dealer.

Do not install in any place exposed to flammable gas leakage.

Flammable gases accumulated around the body of PAR-W21MAA may 
cause an explosion.

Do not use in any special environment.

Using in any place exposed to oil (including machine oil), steam and sulfuric 
gas may deteriorate the performance significantly or give damage to the 
component parts.

When installing the remote controller in a hospital or communication 
facility, take ample countermeasures against noise.

Inverters, emergency power supply generators, high-frequency medical 
equipment, and wireless communication equipment can cause the remote 
controller to malfunction or to fail. Radiation from the remote controller may 
effect communication equipment and prevent medial operations on the 
human body or interfere with image transmission and cause noise.

Wire so that it does not receive any tension.

Tension may cause wire breakage, heating or fire.

Completely seal the wire lead-in port with putty etc. 

Any dew, moisture, insects entering the unit may cause an electric shock or 
a malfunction.

Do not install in any place at a temperature of more than 40°C [104°F] 
or less than 0°C [32°F] or exposed to direct sunlight.

Doing so may cause deformation or malfunction.

Do not apply AC100V or AC200V to the remote controller. The 
maximum voltage that can be applied to the remote controller is 12V.

The remote controller may be damaged or may generate heat and cause a 
fire.

Do not install in any steamy place such a bathroom or kitchen.

Avoid any place where moisture is condensed into dew. Doing so may 
cause an electric shock or a malfunction.

Do not install in any place where acidic or alkaline solution or special 
spray are often used.

Doing so may cause an electric shock or malfunction.

Use standard wires in compliance with the current capacity.

A failure to this may result in an electric leakage, heating or fire.

Do not touch any control button with your wet hands.

Doing so may cause an electric shock or a malfunction.

Do not wash with water.

Doing so may cause an electric shock or a malfunction.

Do not press any control button using a sharp object.

Doing so may cause an electric shock or a malfunction.

Remote controller cover

Remote controller body

Summary of Contents for PAR-W21MAA

Page 1: ...ed by installation may result in an electric shock or fire All electrical work must be performed by a licensed technician according to local regulations and the instructions given in this manual Any lack of electric circuit or any deficiency caused by installation may result in an electric shock or fire Do not move and re install the PAR W21MAA yourself Any deficiency caused by installation may re...

Page 2: ...hing Wiring pipe Lock nut Switch box Seal around here with putty Remote control cord When installing directly on the wall When opening a hole using a drill for the remote controller cord or when taking the cord out of the back of the remote controller seal the hole with putty When routing the cord via the portion cut off from the upper cover similarly seal that portion with putty When taking the r...

Page 3: ...operation section Peel off this protection sheet before use Item 1 Item 2 Item 3 Setting content 1 Change Language CHANGE LANGUAGE Language setting to display Display in multiple languages is possible 2 Function limit FUNCTION SELECTION 1 Operation function limit setting operation lock LOCKING FUNCTION Setting the range of operation limit operation lock 2 Operation mode skip setting SELECT MODE Se...

Page 4: ...splay Press the D button Press the D button Press the D button Press the G button Mode selection MODE SELECTION Press the E button Press the E button Press the G button Press the G button See 4 2 1 See 4 2 2 See 4 2 3 See 4 3 1 See 4 3 2 See 4 3 3 See 4 3 4 See 4 3 5 See 4 4 1 See 4 4 2 Operation function limit setting LOCKING FUNCTION Temperature range limit setting LIMIT TEMP FUNCTION Operation ...

Page 5: ...e the screen transitions to the unit stop screen after the display of the error 3 To select a water temperature initial setting from 1 to 8 press the Mode Back E button The initial operation mode can be set Change the setting when needed 3 Timer function setting To switch the setting press the ON OFF button Choose one of the followings 1 WEEKLY TIMER Initial setting value The weekly timer can be u...

Page 6: ...F 87 F 1 Outside air temperature 20 C 40 C 4 F 104 F Temp Offset Heating Cooling 15 C 15 C 5 F 59 F A Heating system Lower limit value setting Defines the 4 mA 0 V input as the water temperature 1 C of the Heating Hot Water and Anti freeze modes Upper limit value setting Defines the 20 mA 10 V input as the water temperature 2 C of the Heating Hot Water and Anti freeze modes B Cooling system Lower ...

Page 7: ...he self check mode When the CHECK H button is pressed twice successively within three seconds the display shown below appears 2 Set the address or refrigerant address No you want to self check When the TEMP or F buttons are pressed the address decreases and increases between 001 and 127 or 00 and 15 Set it to the address No or refrigerant address No you want to self check Approximately three secon...

Page 8: ...ntroller ERROR CODE Error code 2 E3 6833 6832 flash o Cannot send Error display 3 ERC and data error count are displayed o Data error generation 3 Remote controller check result There is noise on the transmission line or the unit or another remote controller is faulty Check the transmission line and the other remote controllers Data error count is the difference between the number of bits of remot...

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