Mitsubishi PAC-IF021B-E Installation Manual

FLOW TEMP. CONTROLLER (Cased) PAC-IF021B-E

INSTALLATION MANUAL

For safe and correct use, read this manual thoroughly before installing the FTC unit.

OPERATION MANUAL

For safe and correct use, please read this operation manual thoroughly before operating the air-conditioner unit.

INSTALLATIONSHANDBUCH

Lesen Sie zum sicheren und korrekten Gebrauch vor Installation der FTC Einheit diese Anleitung sorgfältig durch.

BEDIENUNGSHANDBUCH

Zum sicheren und einwandfreien Gebrauch der Klimaanlage dieses Bedienungshandbuch vor Inbetriebnahme gründlich durchlesen.

FOR INSTALLER

FOR USER

FÜR INSTALLATEURE

FÜR BENUTZER

Contents

1. Safety precautions .....................................................................................2

2. Installing the FTC unit ...............................................................................

3. System ......................................................................................................

4. Electrical work ...........................................................................................

5. Check ......................................................................................................

3 4 6

6. Remote controller operation ....................................................................

7. Initial setting by remote controller ............................................................

8. Denitionofanalogsignalbyremotecontroller ......................................

9. Troubleshooting ......................................................................................

Guide to plan local applications ....................................................................26

“FTC” is the abbreviation of “Flow Temperature Controller”, which is described as “FTC” in this manual.

1.Safety precautions

Before installing the FTC unit, make sure you read all the “Safety precautions”.

Please report to your supply authority or obtain their consent before connecting this equipment to the power supply system.

Warning:

Precautions that must be observed to prevent injuries or death.

Caution:

Precautions that must be observed to prevent damages to the unit.

Warning:

• The unit must not be installed by the user. Ask an installer or an authorized technician to install the unit. If the unit is installed improperly, electric

shock, or re may be caused.

• For installation work, follow the instructions in the Installation Manual and

use tools and pipe components specically made for use with refrigerant specied in the outdoor unit installation manual.

• The unit must be installed according to the instructions in order to mini mize the risk of damages by earthquakes, typhoons, or strong winds. Improperly installed unit may fall down and cause damages or injuries. The unit must be securely installed on a structure that can sustain its weight.

• If the unit is mounted on an unstable structure, it may fall down and cause damages or injuries.

• All electric work must be performed by a qualied technician according to

local regulations and the instructions given in this manual. The unit must be powered by dedicated power lines and the correct voltage and circuit

breakers must be used. Power lines with insufcient capacity or incorrect electrical work may result in electric shock or re.

After installation, perform the test run to ensure normal operation. Then explain your customer the “Safety Precautions,” use, and maintenance of the unit based on the information in the Operation Manual provided by local application manufacture. Both the Installation Manual and the Operation Manual must be given to the user. These manuals must always be kept by the actual users.

: Indicates a part which must be grounded.

Warning:

Carefully read the labels attached to the unit.

• Only the specified cables can be used for wiring. Connections must be made securely without tension on the terminals. If cables are connected or

installed improperly, It may result in overheating or re.

• Terminal block cover panel of the unit must be rmly xed. If the cover

panel is mounted improperly, dust and moisture may enter the unit, and it

may cause electric shock or re.

• Make sure to use accessories authorized by Mitsubishi Electric and ask an installer or an authorized technician to install them. If accessories are

improperly installed, it may cause electric shock, or re.

• Do not remodel the unit. Consult an installer for repairs. If alterations or

repairs are not performed correctly, it may cause electric shock or re.

• The user should never attempt to repair the unit or transfer it to another location. If the unit is installed improperly, it may cause electric shock or

re. If the FTC unit needs to be repaired or moved, ask an installer or an

authorized technician.

13 22 24 25

1.1. Before installation (Environment)

Caution:

• Do not install the FTC unit in outdoor location as it is designed for indoor installation only. Otherwise electric shock or breakdown may be caused by water drop, wind or dust. Do not use the unit in an unusual environment. If the FTC unit is installed or

• exposed to steam, volatile oil (including machine oil), or sulfuric gas, or exposed to briny air, the internal parts can be damaged.

• Do not install the unit where combustible gases may leak, be produced,

ow, or accumulate. If combustible gas accumulates around the unit, it may cause re or explosion.

1.2. Before installation or relocation

Caution:

• Be fully careful when moving the units. Do not hold the packaging bands. Wear protective gloves to unpack and to move it, in order to avoid your hands be injured by parts.

1.3. Before electric work

Caution:

• Be sure to install a circuit breaker. If it is not installed, there may be a risk

to get an electric shock.

• For the power lines, use standard cables of sufcient capacity. Otherwise,

it may cause a short circuit, overheating, or re.

• When installing the power lines, do not apply tension to the cables. The

cables may be cut or overheated resulting in a re.

1.4. Before starting the test run

Caution:

• Turn on the main power switch of the outdoor unit more than 12 hours

before starting operation. Starting operation immediately after turning on the power switch can severely damage the internal parts. Keep the main power switch turned on during the operation period.

• When installing the unit in a hospital or in a building where communica tions equipment are installed, you may need to take measure to noise and electronic interference. Inverters, home appliances, high-frequency medical equipment, and radio communications equipment can cause the FTC unit to malfunction or to breakdown. At the same time, the noise and electric interference from the FTC unit may disturb the proper operation of medical equipment, and communications equipment.

• Be sure to safely dispose of the packaging materials. Packaging materials, such as nails and other metal or wooden parts may cause injuries.

• Do not wash the FTC unit. You may receive an electric shock.

• Make sure to ground the unit. Do not connect the ground wire to gas or

water pipes, lightning rods, or telephone grounding lines. If the unit is not properly grounded, there may be a risk to get an electric shock.

• Make sure to use circuit breakers (ground fault interrupter, isolating switch

(+B fuse), and molded case circuit breaker) with the specied capacity. If

the circuit breaker capacity is larger than the specified capacity, break-

down or re may result.

• Before starting operation, check that all protective parts are correctly in

stalled. Make sure not to get injured by touching high voltage parts.

• Do not touch any switch with wet hands. There may be a risk to get an

electric shock.

• After stopping operation, make sure to wait at least 5 minutes before turn

ing off the main power. Otherwise, it may cause breakdown.

2. Installing the FTC unit

Fig. 2-1

ON/OFF

TEMP.

 

 

(11.5)

Unit:mm

11.5

200

313

3-ELECTRIC WIRE INLET When installed on a wall: Lower side

278

336

TB61 TB62

TB141TB142



TB6

2.1. Check the parts (Fig. 2-1)

The FTC unit should be supplied with the following parts.

Part Name Q'ty FTC unit 1

Thermistor 2

Remote controller cable(5m) 1

Remote controller 1

2.2. Choosing the FTC unit installation location

• Do not install the FTC unit in outdoor location as it is designed for in-

door installation only. (It is not waterproof against raindrop.)

• Avoid locations where the unit is exposed to direct sunlight or other

sources of heat.

• Select a location where easy wiring access to the power source is

available.

• Avoid locations where combustible gases may leak, be produced,

ow,oraccumulate.

• Select a level location that can bear the weight and vibration of the

unit.

• Avoid locations where the unit is exposed to oil, steam, or sulfuric gas.

• Do not install in location that is hot or humid for long periods of time.

B A

Photo.2-1

2.3. Installing the FTC unit (Fig. 2-2, Photo.2-1)

1. Remove 2 screws from FTC unit and remove the cover.

2. Install the 4 screws (locally supplied) in 4 holes.

Screw B Cover

Hole for installation

Fig.2-2

3. System

+In this system,

• Heating ECO mode of FTC is not available.

• It is NOT necessary to switch operation mode to realize Hot water mode, Anti freeze mode and Heating ECO mode. Simply change the target temp. by Analog signal.

Start

‘Target flow temperature’ is set…

By remote controller

Your system is

BASIC SYSTEM.

Your system is

SIMPLE SYSTEM.

Your system is ANALOG TEMP. SYSTEM.

Remote controller

FTC PCB BOX FTC PCB BOX FTC PCB BOX

Remote controller

System controller

(locally supplied)

SIMPLE SYSTEM BASIC SYSTEM ANALOG TEMP. SYSTEM

ON/OFF

Operation mode

- Heating

- Heating ECO

- Hot water

- Anti freeze

- Cooling

Operation mode

- Heating +

- Cooling

Target flow temp.

ON/OFF

Remote controller

ON/OFF

By Non-voltage Contact signals

End user interface

System controller

(locally supplied)

End user interface

Topreset

- target temp. for each mode

- target temp. parameters (See Page22-23 for details)

Topreset

- analog signal parameters (See Page24 for details)

Analog signal 4-20mA/1-5V/0-10V

Heat Pump switch ON/OFF and the operation mode change is done…

By external signals from local controller (non-voltage contact signals)

By external signals from local controller (Analog signal:4-20mA/ 1-5V/ 0-10V)

Tostart,checkyoursystemtypebyfollowingtheowchartbelow.(FTCcanbeusedfor3typesofsystems.)

3. System

System System diagram

Power supplies

Thermistor (TH1, TH2)

Switch setting

External input

External output

Outdoor unit

BASIC

SPLIT type

PACKAGED type

SPLIT type

PACKAGED type

SPLIT type

PACKAGED type

ANALOG TEMP.

SIMPLE

4.6

4.4

4.2.1

4.2.2

4.2.1

4.2.2

4.2.1

4.2.2

4.2.1

4.2.2

4.2.1

4.2.2

4.2.1

4.2.2

4.2.1

4.1

4.1.1

4.1

4.1.2

4.1

4.1.1

4.1

4.1.2

4.1

4.1.1

4.1

4.1.2

4.1

4.1.1

4.1

4.1.2

4.1

4.1.1

4.1

4.1.2

4.1

4.1.1

4.1

4.1.2

4.5.1

4.5.2

4.5.1

4.5.2

4.5.1

4.5.2

4.5.1

4.5.2

FTC

TH1

FTC Outdoor unit

TH2 Local controller ON/OFF MODE

Remote controller (PAR-W21MAA)

FTC

TH1

FTC

TH1

FTC

TH1

FTC

TH1

FTC

TH1

TH2

FTC

TH1

TH2 Local controller ON/OFF Temp.

FTC

TH1

TH2

FTC

TH1

TH2

FTC

TH1

TH2

FTC

TH1

FTC

TH1

—

( )

Local controller ON/OFF MODE

( )

Local controller ON/OFF MODE

( )

Local controller ON/OFF MODE

( )

Local controller ON/OFF Temp.

( )

Local controller ON/OFF Temp.

( )

Local controller ON/OFF Temp.

( )

Refer to the relevant sections for details according to your system type.

SPLIT type : the standard outdoor unit without a plate HEX(Refrigetant-water HEX) inside PACKAGED type : the Air to Water outdoor unit with a plate HEX(Refrigetant-water HEX) inside

4. Electrical work

S1 S2

S1 S2 S3

A B C

FTC unit-Outdoor unit

FTC unit model

FTC unit-Outdoor unit earth

FTC unit-Outdoor unit S1-S2

FTC unit-Outdoor unit S2-S3

PAC-IF021B-E

AC 230 V

DC24 V

1 × Min.1.5

3× 1.5 (polar)

Circuit

rating

Wiring

Wire No. × size

(mm

)

S2 S3S1

E: FTC unit/outdoor unit

connecting cables

Earth cable

TB6

4.1. FTC (Photo. 4-1)

1. Remove the cover.

2. Wire the power cable and control cable separately through the respective wiring inlets given in the photo.

• Make sure to put screws tightly.

Inlet for control cable

Inlet for power

Clamp

FTC / Outdoor unit connecting terminals

Earth terminal

Photo.4-1

4.1.1. FTC unit power supplied from outdoor unit

The following connection patterns are available. The outdoor unit must be powered properly.(Details are shown in its installation manual.)

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E FTC unit/outdoor unit connecting cables F FTC unit

*1. Max. 80 m

*2.TheguresareNOTalwaysagainsttheground.

S3 terminal has DC 24 V against S2 terminal. However between S3 and S1, these terminals are not electrically insulated by the transformer or other device.

Notes: 1. Wiring size must comply with the applicable local and national codes.

2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed exible ca-

3. Install an earth wire longer than other cables.

ble. (Design 60245 IEC 57)

Photo.4-2

4. Electrical work

S1 S2

L N

S1 S2 S3

GEB

S2 S3S1

E: FTC unit/outdoor unit

connecting cable

Power Supply Cables

TB6

4.1.2. Separate FTC unit/outdoor unit power supplies

The following connection patterns are available. The outdoor unit power must be powered properly(Details are shown in its installation manual).

A Outdoor unit power supply B Earth leakage breaker C Wiring circuit breaker or isolating switch D Outdoor unit E FTC unit/outdoor unit connecting cables F FTC unit G FTC unit power supply

If the FTC and outdoor units have separate power supplies, refer to the table below.

FTC unit controller connector (CNS2) connection change

Outdoor unit DIP switch settings (when using separate FTC unit/outdoor unit power supplies only)

Separatepowersupplyspecications

Disconnected

ON 3 OFF 1 2

Set the SW8-3 to ON.

(SW8)

Photo.4-3

FTC unit model PAC-IF021B-E FTC unit power supply ~/N (Single Phase), 50 Hz, 230 V FTC unit input capacity Main switch (Breaker)

)

FTC unit power supply & earth 3 × Min. 1.5

(mm

FTC unit-Outdoor unit *2 2 × Min. 0.3

Wiring

Wire No. ×

size

FTC unit-Outdoor unit earth – FTC unit L-N *3 AC 230 V FTC unit-Outdoor unit S1-S2 *3 –

rating

Circuit

FTC unit-Outdoor unit S2-S3 *3 DC24 V

*1. A breaker with at least 3.0mm contact separation in each pole shall be provided. Use earth leakage breaker (NV). *2. Max. 120 m

*3.TheguresareNOTalwaysagainsttheground.

*1 16 A

CNS2

Notes: 1. Wiring size must comply with the applicable local and national code.

2. Power supply cables and FTC unit/outdoor unit connecting cables shall not be lighter than polychloroprene sheathed exible cable. (Design 60245 IEC 57)

3. Install an earth wire longer than other cables.

4. Electrical work

FTC

Outdoor unit

TH1

TH2

Water piping

Refrigerant piping

Water OUTLET side

Refrigerant LIQUID side

FTC

Outdoor unit

Packaged type (with a refrigerant-water HEX inside)

SPLIT type (without refrigerant-water HEX inside)

*1 Refrigerant-water HEX

TH1

Water piping

Water OUTLET side

TH2

TH2: not necessary

PACKAGED type outdoor unit SPLIT type outdoor unit

4.2. Connecting thermistor cable

Connect the thermistor 2 for the FTC controller.

4.2.1. Connecting the actual ow water temp. thermistor (TH1)

Connectthethermistorfortheactualowwatertemp.to1and2onthe

terminal block (TB61) on the FTC controller.

When the thermistor cables are too long, cut them at the appropriate length. Do not bind them in the FTC unit.

<Thermistor position> Put TH1 on water piping (water outlet side).

Note: Be sure to attach the TH1 where it detects Flow temp.(Water

oulet side) correctly.

4.2.2. Connecting the pipe temp. thermistor (TH2)

Connect the thermistor for the refrigerant pipe temp. to 3 and 4 on the terminal block (TB61) on the FTC (PCB).

For packaged Outdoor unit : It is not necessary to connect TH2. For split Outdoor unit : Connect TH2.

When the thermistor cables supplied with FTC are too long, cut them to the appropriate length. Do not bind them in the FTC unit.

<Thermistor position> Put the TH2 on refrigerant piping (Liquid side). It is better to protect the thermistor with heat insulating materials not to be affected by the ambient temperature.

Note: Be sure to attach the TH2 where it detects Refrigerant piping temp. (Liquid side) correctly.

TB61

TH1 TH2

Photo.4-4

TB62

Wired remote controller cable

Caution:

Do not route the thermistor cables together with power cables. The sensor part of the thermistor should be installed where user must not touch. (It is separated by the supplementary insulation from where user may touch.)

Outdoor unit TH1 TH2 TH5 PACKAGED type Ο Х Х SPLIT type Ο Ο Х

Ο:Necessary.Connectthethermistor.

Х:Notnecessary.Thethermistorisnotneededtoconnect.

4. Electrical work

3030

30120

83.5

B-1. B-2.

Fig. 4-2

B TB

Fig. 4-1

Fig. 4-3

A 6





























4.3. Connecting the wired remote controller

4.3.1. Connecting the wired remote controller cable to FTC

Connect the wired remote controller cable to 5 and 6 on the terminal block (TB62) on the FTC controller.(Photo. 4-4)

Wiring wire No.×size(mm2) : 2×0.3(Non-polar)

The 5m wire is attached as an accessory. Max. 500 m Wiring size must comply with the applicable local and national codes.

Circuit rating: DC12V

Circuit rating is NOT always against the ground.

4.3.2. For wired remote controller

1) Installing procedures

(1) Select an installing position for the remote controller. (Fig. 4-1)

► Procure the following parts locally:

2 piece switch box Thin copper conduit tube Lock nuts and bushings

[Fig.4-1]

Remotecontrollerprole

Required clearances surrounding the remote controller

Installation pitch

(2) Seal the service entrance for the remote controller cable with putty

to prevent possible invasion of dew drops, water, cockroaches or insects. (Fig. 4-2)

For installation in the switch box

For direct installation on the wall, select one of the followings:

• Prepare a hole through the wall to pass the remote controller cable (in order to take out the remote controller cable from the back), then seal the hole with putty.

• Take out the remote controller cable through the cut-out upper case, then seal the cut-out notch with putty.

B-1. To lead the remote controller cable from the back of the con-

troller

B-2. To take out the remote controller cable through the upper por-

tion

[Fig.4-2]

Wall

Conduit

Lock nut

Bushing

2) Connecting procedures (Fig. 4-3)

Connect the remote controller cable to the terminal block.

To TB62 No.5 and 6 on the FTC unit

TB6 (No polarity)

Switch box

Remote controller cable

Seal with putty

Wood screw

4. Electrical work

4.4. Switch setting of FTC

Set the dip switch on the FTC (PCB) according to the following table.

System ON/OFF

BASIC External input

ANALOG TEMP.

BASIC and SIMPLE

SIMPLE Wired remote controller Wired remote controller Wired remote controller SPLIT type OFF OFF OFF OFF OFF OFF

Input

(non-voltage contact) External input

(non-voltage contact) External input or

4-20mA *1 External input or

1-5V *2 External input External input

External input and *3 Wired remote controller

*1: 4-20mA····OFF:0~2mA *2: 1-5V····OFF:0~0.5V

*3: The command from the external input is prior to the one from the wired remote controller. *4: SPLIT type : the standard outdoor unit without a plate HEX(refrigerant-water) inside. PACKAGED type : the Air to Water outdoor unit with a plate of HEX(refrigerant-water) inside

OTHER SWITCH SETTING

SW1-3 Prohibition of Cooling mode

SW1-3=OFF : Operation mode Heating/HeatingECO/HotWater/Anti-freeze/Cooling SW1-3=ON : Operation mode Heating/HeatingECO/HotWater/Anti-freeze

SW1-4 SW3-4,5,8 Not in use. Set to OFF. (Initial setting) SW3-7 Not in use. Set to ON. (Initial setting)

Change mode Input

External input (non-voltage contact)

(non-voltage contact) External input and *3

Wired remote controller External input and *3

Wired remote controller

Change TEMP. Input

DIP switch on PCB SW2-1~8, SW3-1~3

Wired remote controller SPLIT type ON OFF OFF OFF OFF OFF

4-20mA SPLIT type OFF ON OFF OFF ON ON

1-5V SPLIT type OFF ON OFF OFF OFF ON

0-10V SPLIT type ON ON OFF OFF OFF OFF

DIP switch on PCB SW2-1~8, SW3-1~3

Wired remote controller SPLIT type OFF OFF OFF OFF OFF OFF

Outdoor unit *4 SW1-1 SW1-2 SW1-5 SW1-6 SW6-1 SW6-2

SPLIT type ON OFF OFF ON OFF OFF PACKAGED type ON OFF ON ON OFF OFF

PACKAGED type ON OFF ON OFF OFF OFF

PACKAGED type OFF ON ON OFF ON ON

PACKAGED type OFF ON ON OFF OFF ON

PACKAGED type ON ON ON OFF OFF OFF SPLIT type OFF OFF OFF ON OFF OFF PACKAGED type OFF OFF ON ON OFF OFF

PACKAGED type OFF OFF ON OFF OFF OFF

SW6

TB61

SW3-6 Logic of Forced Comp. OFF external signal(TB142 5-6)

SW3-6 TB142 No.5-6 input Item

OFF(open) Normal

OFF

ON(short) Forced Comp. OFF OFF(open) Forced Comp. OFF

ON(short) Normal

SW1-6,7,8 Set temperature range

SW1-6=OFF Set temperature range with wired remote controller

TH1 TH2

Photo.4-5

SW1-6=ON Set temperature table with DIP switch of FTC

SW1-6 SW1-7 SW1-8 Temperature range with wired remote controller Temperature table

OFF OFF OFF Upper55˚C/lower20˚C Upper45˚C/lower5˚C Upper25˚C/lower5˚C — OFF ON OFF Upper60˚C/lower20˚C*1 Upper45˚C/lower5˚C Upper25˚C/lower5˚C — OFF OFF ON Upper50˚C/lower20˚C Upper45˚C/lower5˚C Upper25˚C/lower5˚C — OFF ON ON — — — — ON OFF OFF — — — Table ON ON OFF — — — Table ON OFF ON — — — — ON ON ON — — — —

Heating/HeatingECO/Hot Water Anti-Freeze Cooling

SW2-1~8, SW3-1~3

1 2

*1.Don’t use this setting when you use the standard outdoor unit without a plate HEX(Refrigerant-water) inside.

SW1 SW2

SW3

4. Electrical work

TB142

FTC

12 13 14

At site

HeatingECO → Anti-Freeze →

Hot Water →

Heating →

7 8 9

3 4

Forced Comp. OFF →

Cooling →

3 5 7 9 11 131

42 6 8 10 12 14

TB142

SW2-1~8 SW3-1~3 Fixed set temperature with DIP switch of FTC (Available when SW1-6 is ON) SW2-1~3 Fixed set temperature for Heating mode (Table1~2 depends on SW1-7,8.)

SW2-1 SW2-2 SW2-3 Table

OFF OFF OFF 25 ºC 25 ºC ON OFF OFF 30 ºC 30 ºC OFF ON OFF 35 ºC 35 ºC ON ON OFF 40 ºC 40 ºC OFF OFF ON 45 ºC 45 ºC

ON OFF ON 50 ºC 50 ºC OFF ON ON 55 ºC 55 ºC ON ON ON 60 ºC *1 60 ºC *1

The selectable temperature range for Heating mode depends on outdoor unit type. *1 Do not use this setting when you use the standard outdoor unit without a plate HEX(refrigerant-water) inside.

SW2-4~6 Fixed set temperature for Hot Water mode (Table1~2 depends on SW1-7,8.)

SW2-4 SW2-5 SW2-6 Table OFF OFF OFF 46 ºC 25 ºC ON OFF OFF 48 ºC 30 ºC OFF ON OFF 50 ºC 35 ºC ON ON OFF 52 ºC 40 ºC OFF OFF ON 54 ºC 45 ºC ON OFF ON 56 ºC 50 ºC OFF ON ON 58 ºC 55 ºC ON ON ON 60 ºC *1 60 ºC *1

The selectable temperature range for Hot Water mode depends on outdoor unit type. *1 Do not use this setting when you use the standard outdoor unit without a plate HEX(refrigerant-water) inside.

Table

SW2-7,8 Fixed set temperature for Anti-freeze mode (Table1~2 depends on SW1-7,8.)

SW2-7 SW2-8 Table

OFF OFF 5 ºC 5 ºC ON OFF 10 ºC 10 ºC OFF ON 15 ºC 15 ºC ON ON 20 ºC 20 ºC

Table

SW3-1~3 Fixed set temperature for Cooling mode(Table1~2 depends on SW1-7,8.)

SW3-1 SW3-2 SW3-3 Table

OFF OFF OFF 7 ºC 7 ºC ON OFF OFF 10 ºC 10 ºC OFF ON OFF 12 ºC 12 ºC ON ON OFF 15 ºC 15 ºC OFF OFF ON 18 ºC 18 ºC ON OFF ON 20 ºC 20 ºC OFF ON ON 22 ºC 22 ºC ON ON ON 25 ºC 25 ºC

Table

4.5. Connecting external input

FTC can be operated by following external input.

4.5.1 EXTERNAL INPUT ( Contact signal )

TB142 OFF ON Remark 1-2 (IN1) — — Not in use 3-4 (IN2) — — Not in use 5-6 (IN3) Normal Forced Comp. OFF SW3-6=OFF

7-8 (IN4) OFF Cooling 10-11 (COM-IN5) OFF Heating 10-12 (COM-IN6) OFF Heating ECO *1 10-13 (COM-IN7) OFF Hot Water 10-14 (COM-IN8) OFF Anti-Freeze

*1 Heating ECO mode sets the set temperature depending on the outdoor temperature.

Forced Comp. OFF Normal SW3-6=ON

4. Electrical work

FTCAt site

TB62

4-20mA/1-5V/0-10V

(

Wired remote controller

(

0mA -- 4mA --------------- 20mA 0V-------1V------------------- 5V

0V------------------10V

No.1 Temp.

Stop

4-20mA

Refer to the section 8 for details about No1, 2 Temp. The selectable set temperature range depends on SW1-7, 8.

1-5V 0-10V

No.2 Temp.

FLOW TEMP.

ANALOG SIGNAL

1FTC

TB141

At site

2 3X24 5X36 7X48 9

X5 X6 X7

1413121110

3 5 7 9 11 131

TB141

6 8 10 12 14

4.5.2 EXTERNAL INPUT ( analog signal ) 4-20mA / 1-5V / 0-10V

Connect the transmission cables to No. 3 and 4 on the terminal block (TB62). No. 3 on the terminal block(TB62) : Plus side No. 4 on the terminal block(TB62) : Minus side (Reference side)

Switch setting

Input Outdoor unit SW1-1 SW1-2 SW1-5 SW1-6 SW6-1 SW6-2 4-20mA SPLIT type OFF ON OFF OFF ON ON

1-5V SPLIT type OFF ON OFF OFF OFF ON

0-10V SPLIT type ON ON OFF OFF OFF OFF

4-20mA / 1-5V / 0-10V setting

PACKAGED type OFF ON ON OFF ON ON

PACKAGED type OFF ON ON OFF OFF ON

PACKAGED type ON ON ON OFF OFF OFF

Caution:

The external input signals are separated by basic insulation from power supply for the unit. The external input signals should be separated by supplementary insulation from where user may touch in case that it is installed where

user may touch. Connect the terminals by using the ring terminals and also insulate the cables of adjoining terminals when wiring to terminal block.

4.6. Connecting external output (Photo. 4-6)

TB141 Item OFF ON 1-2 (OUT1) X1 Operation Output OFF ON 3-4 (OUT2) X2 Error Output Normal Error 5-6 (OUT3) X3 Comp. Output OFF ON 7-8 (OUT4) X4 Defrost Output OFF ON 9-10 (OUT5) X5 Mode(Cooling) Output OFF ON 11-12 (OUT6) X6 Mode(Heating/HeatingECO/Hot Water/ Anti-Freeze) Output OFF ON 13-14 (OUT7) X7 — — —

Note :

External output signals are separated by basic insulation from other circuit of interface.

Caution :

When 2 or more external outputs are used, the power supply on the output side should be the same.

4.7. Wiring specication of External output / External input

Locally supplied parts

Item Name Modelandspecications External output function

External input function

External output signal wire

Display lamp, etc. Non-voltage Contact AC220-240V (DC30V), 1A or less

External input signal wire

Switch Non-voltage "a" contact signals

Use sheathed vinyl coated cord or cable. Max. 50m Wire type : CV, CVS or equivalent Wire size : Stranded wire 0.5mm2 to 1.25mm Solid wire: {0.65mm to {1.2mm

*Connect the surge absorber according to the load at site.

Use sheathed vinyl coated cord or cable. Max. 10m Wire type :CV, CVS or equivalent Wire size : Stranded wire 0.5mm2 to 1.25mm Solid wire : {0.65mm to {1.2mm

Remote switch : minimum applicable load DC 12V, 1mA

TB141

Photo.4-6

5. Before test run

ON/OFF

TEMP.

ERROR CODE







5.1. Check

After completing installation and the wiring and piping of the local application and outdoor units, check for refrigerant leakage, looseness in the power supply or control wiring, wrong polarity, and no disconnection of one phase in the supply.

Usea500-voltmegohmmetertocheckthattheresistancebetweenthepowersupplyterminalsandgroundisatleast1.0MΩ.

Warning:

Do not use the system if the insulation resistance is less than 1.0MΩ.

Caution:

Do not carry out this test on the control wiring (low voltage circuit) terminals.

5.2. Self-check

Turn on the power.

Press [CHECK] button twice.

Press[CHECK]buttontwicetonishself-check.

CHECK button

Check code Symptom P1 Flow water (TH1) sensor error P2 Refrigerant liquid Pipe (TH2) sensor error P6 Freezing/Overheating protection operation Fb FTC unit control system error (memory error, etc.) E0~E5 Signal transmission failure between remote controller and FTC. E6~EF Signal transmission failure between outdoor unit and FTC. – – – – No trouble generated in the past. FFFF No corresponding unit U*, F* Outdoor unit failure. Refer to the outdoor unit wiring diagram.

For description of each LED(LED1~5) provided on the FTC, refer to the following table.

LED 1 (Power for microcomputer) Indicates whether control power is supplied. Make sure that this LED is always lit. LED 2 (Power for remote controller) Indicates whether power is supplied to the remote cotroller. This LED lights only in the case of the FTC unit

LED 3(Communication between FTC and outdoor unit) Indicates state of communication between the FTC and outdoor unit. Make sure that this LED is always blinking. LED 4 — LED 5 —

IC : FTC unit OC : Outdoor unit C Check code

which is connected to the outdoor unit refrigerant address “0“.

6. Remote controller operation

Note (Marking for WEEE)

6.1 Safety precautions

► Before installing the unit, make sure you read all the “Safety Precau-

tions”.

► The “Safety Precautions” provide very important points regarding

safety. Make sure you follow them.

► Please report to or take consent by the supply authority before connec

tion to the system.

Warning:

• For appliances not accessible to the general public.

• The unit must not be installed by the user. Ask the dealer or an authorized company to install the unit. If the unit is installed improperly, water leak-

age, electric shock or re may result.

• Do not stand on, or place any items on the unit.

• Do not splash water over the unit and do not touch the unit with wet hands. An electric shock may result.

• Do not spray combustible gas close to the unit. Fire may result.

• Do not place a gas heater or any other open-ame appliance where it will be exposed to the air discharged from the unit. Incomplete combustion

may result.

• Do not remove the front panel or the fan guard from the outdoor unit when it is running.

This symbol mark is for EU countries only.

This symbol mark is according to the directive 2002/96/EC Article 10 Information for users and Annex IV.

Your MITSUBISHI ELECTRIC product is designed and manufactured with high quality materials and components which can be recycled and reused. This symbol means that electrical and electronic equipment, at their end-of-life, should be disposed of separately from your household waste. Please, dispose of this equipment at your local community waste collection/recycling centre. In the European Union there are separate collection systems for used electrical and electronic product. Please, help us to conserve the environment we live in!

Symbols used in the text

Warning: Describes precautions that should be observed to prevent danger of injury or death to the user.

Caution: Describes precautions that should be observed to prevent damage to the unit.

Symbols used in the illustrations

: Indicates a part which must be grounded.

• When you notice exceptionally abnormal noise or vibration, stop opera

tion, turn off the power switch, and contact your dealer.

• Never insert ngers, sticks etc. into the intakes or outlets.

• If you detect odd smells, stop using the unit, turn off the power switch and

consult your dealer. Otherwise, a breakdown, electric shock or re may

result.

• This air conditioner is NOT intended for use by children or inrm persons

without supervision.

• Young children must be supervised to ensure that they do not play with

the air conditioner.

• If the refrigeration gas blows out or leaks, stop the operation of the air

conditioner, thoroughly ventilate the room, and contact your dealer.

• Do not install in location that is hot or humid for long periods of time.

Caution:

• Do not use any sharp object to push the buttons, as this may damage the remote controller.

• Never block or cover the indoor or outdoor unit’s intakes or outlets.

Disposing of the unit

When you need to dispose of the unit, consult your dealer.

˚F˚C

ERROR CODE

AFTER

TIMER

TIME SUN MON TUE WED THU FRI SAT

ON OFF

Hr AFTER

FUNCTION

WEEKLY

ON/OFF

TEMP.

6. Remote controller operation

6.2 Parts name

■

Wired Remote-Controller

Display Section

For purposes of this explanation, all parts of the display are shown. During actual operation, only the relevant items will be displayed.

Identies the current operation

Shows the operating mode, etc. * Multi language display is sup

ported.

“Centrally Controlled” indicator

Indicates that operation of the remote controller has been prohibited by a master controller.

“Timer is Off” indicator

Indicates that the timer is off.

Temperature Setting

Shows the target temperature.

Operation Section

Shows the current day of the week.

Time/Timer Display

Shows the current time, unless the simple or Auto Off timer is set. If the simple or Auto Off timer is set, shows the time remaining.

ON/OFF indicator

Indicates if timer is set ON/OFF.

“Locked” indicator

Indicates that remote controller buttons have been locked.

Timer indicators

Day-of-Week

The indicator comes on if the corresponding timer is set.

Error indicator

Comes on when error occurs.

Temperature indicator

Shows the current water temperature.

(Power On indicator)

Indicates that the power is on.

Set Temperature buttons

Down

Timer Menu button (Monitor/Set button)

Mode button (Return button)

ON/OFF button

Setting change button

CIR. WATER button

(<Enter> button)

Set Time buttons

Back

Ahead

Timer On/Off button (Set Day button)

Opening the lid

Note:

● “PLEASE WAIT” message This message is displayed for approximately 3 minutes when power is supplied to the FTC unit or when the unit is recovering from a power fail-

ure.

● “NOT AVAILABLE” message

Not available

TEST run function is not available with this FTC unit.

Self check(Clear) button

This message is displayed if a button is pressed to operate a function that the FTC unit does not have, or a function that is not available due to

the setting.

˚F˚C

˚C

TIME SUN

  

TIME SUN

˚C

TIME SUN

ON/OFF

TEMP.

˚C

ON/OFF

TEMP.

6. Remote controller operation

Function Selection of remote

controller

Standard Control Screens

OFF ON

Set Day/Time

For details on setting the language for the remote controller display, refer to 6.6. Function Selection. The initial language setting is English.

● Function Selection of remote controller:

● Set Day/Time:

● Standard Control Screens:

Set the functions and ranges available to the remote controller (timer functions, operating restrictions, etc.) Set the current day of the week or time.

View and set the air conditioning system’s operating status

A : Hold down both the Mode button 2 and the Timer On/Off button 9

for 2 seconds.

B : Press either of the Set Time buttons ( or ) 1. c : Press the Mode button 2.

Day of the Week & Time display

6.3 Setting the day of the week and time

1. Press the or Set Time button 1 to show display 2.

2. Press the Timer On/Off (Set Day) button 9 to set the day. * Each press advances the day shown at 3 :

  Sun→Mon→...→Fri→Sat.

3. Press the appropriate Set Time button 1 as necessary to set the time. * As you hold the button down, the time (at 4) willincrementrstin

one-minute intervals, then in ten-minute intervals, and then in 1-hour intervals.

4. After making the appropriate settings at Steps 2 and 3, press the button 4 to lock in the values.

Note:

Day of the Week Setting

Time Setting

The day and time will not appear if clock use has been disabled at Function Selection of remote controller.

6.4 Operation

Available items are different depending on your system. (Refer to section 3.)

6.4.1 Switching

■ Press the ON/OFF button 1.

• The ON lamp 1 and the display area come on.

Note: When the unit restarts, the previous settings are recalled as follows.

Remote controller setting Mode Last operation mode Temperature setting Last set temperature

■

Press the ON/OFF button 1 again.

• The ON lamp 1 and the display area go dark.

Note: Even if you press the ON/OFF button to restart the system while turning down the operation, the outdoor unit will not start for about 3 minutes. This is to prevent the internal components from being damaged.

6. Remote controller operation

˚C

TIME SUN

FUNCTION

ON/OFF

TEMP.

˚C

FUNCTION

˚C

FUNCTION

˚C

ON/OFF

TEMP.

6.4.2. Mode select

Press operation mode ( ) button2 and select operation mode .

Heating mode (Space heating)

Heating ECO mode (

Space heating with weather compensation *1

) Hot water mode (Sanitary hot water) Anti freeze mode (

Heating to prevent water pipe from freezing

Cooling mode (Space cooling)

Targetowtemp.variesaccordingtotheoutdoortemperature.(Refer

to 7. for setting.)

6.4.3. Temperature setting ► To decrease the target temperature:

Press button 3 to set the desired temperature. The selected temperature is displayed 3.

1. While holding down the CIR. WATER button 4, press and hold down the ON/OFF button 1 for 2 seconds. The “Locked” indication appears on the screen (at 1), indicating that the lock is now engaged.

* If locking has been disabled in Function Selection of remote control-

ler, the screen will display the “Not Available” message when you

)

press the buttons as described above.

• If you press a locked button, the “Locked” indication (at 1) will blink

on the display.

1. While holding down the CIR. WATER button 4, press and hold down the ON/ OFF button 1 for 2 seconds—so that the “Locked” indication disappears from the screen (at 1).

► To increase the target temperature:

Press button 3 to set the desired temperature. The selected temperature is displayed 3.

Note: Heating ECO mode sets the set temperature depending on

the outdoor temperature.

6.5. Other Functions

6.5.1. Locking the Remote Controller Buttons (Operation function limit)

■ If you wish, you can lock the remote controller buttons. You can use the Function Selection of remote controller to select which type of lock to use.

(For information about the lock type, refer to 6.6, item[2].)

 Specically,youcanuseeitherofthefollowing2locktypes.

1 Lock All Buttons: Locks all of the buttons on the remote controller. 2 Lock All Except ON/OFF: Locks all buttons other than the ON/OFF button.

Note:

The “Locked” indicator appears on the screen to indicate that buttons are currently locked.

Lock Indicator

1 4

6. Remote controller operation

ON/OFF

ERROR CODE

ON/OFF

˚C

ERROR CODE

ON/OFF

CALL:XXXX XXX:XXX

6.5.2. Error Codes indication

ON lamp (Blinking)

Indoor Unit’s Refrigerant Address

If you have entered contact number to be called in the event of a problem, the screen displays this number. (You can set this up under Function Selection of remote controller. For information, refer to 6.6.)

●

If the ON lamp and error code are both blinking: This means that the air conditioner is out of order and operation has been stopped (and cannot re-

Error Code Indoor Unit No.

Alternating Display

sume). Take note of the indicated unit number and error code, then switch off the power to the air conditioner and call your dealer or servicer.

When the Check button is pressed:

Error Code

●

If only the error code is blinking (while the ON lamp remains lit): Operation is continuing, but there may be a problem with the system. In this case,

you should note down the error code and then call your dealer or servicer for advice.

* If you have entered contact number to be called in the event of a problem, push the Check button to display it on the screen. (You can set this up

under Function Selection of remote controller. For information, refer to 6.6.)

6.6. Function Selection

Various remote controller functions are selectable in the remote controller function selection mode. Change setting when needed.

Item 1 Item 2 Item 3

1. Change language (“CHANGE LAN

GUAGE”)

2. Function limit (“FUNCTION SELEC

TION”)

3. Mode selection (“MODE SELECTION”)

4. Display change

(“DISP MODE SET

TING”)

Language setting to display • Some European languages are selectable.

(1) Operation function limit setting (operation lock) (“LOCKING

FUNCTION”) (2) Use of operation mode setting (“SELECT MODE”) • Setting the use or non-use of operation mode (3) Temperature range limit setting (“LIMIT TEMP FUNCTION”) • Setting the temperature adjustable range (maximum, minimum) (1) Remote controller main/sub setting (“CONTROLLER MAIN/

SUB”)

(2) Use of clock setting (“CLOCK”) • To select the use or non-use of clock function (3) Timer function setting (“TIMER MODE”) • To select the timer type (4) Contact number setting in case of fault (“CALL.”) • Contact number display in case of error

(5) Temperature offset setting(“TEMP OFFSET FUNCTION”) • To select the use or non-use of the water temperature offset funstion (1) Temperature display °C/°F setting (“TEMP MODE °C/°F”) • To select the temperature unit (°C or °F) to display

(2) Water temperature display setting(“WATER TEMP. DISP.

SELECT”)

• To invalidate some functions.

• Selecting main or sub remote controller * When 2 remote controllers are connected to 1 group, 1 controller

must be set to sub.

• To select the telephone number

• Toselecttheuseornon-useofthedisplayof“actualowwatertem

perature”

+ 37 hidden pages

Mitsubishi PAC-IF021B-E Installation Manual

Specifications and Main Features

Frequently Asked Questions

User Manual