Mitsubishi Electric PAC-BH02KTY-E, PAC-BH02EHT-E, PAC-BH03EHT-E, PAC-BH01EHT-E Installation Manual

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Air-Conditioners For Building Application OUTDOOR UNIT RELAY BOX

PAC-BH02KTY-E

BASE HEATER

PAC-BH01EHT-E, PAC-BH02EHT-E, PAC-BH03EHT-E

MANUEL D’INSTALLATION

Veuillez lire le manuel d’installation en entier avant d’installer ce climatiseur pour éviter tout accident et vous assurer d’une utilisation correcte.

GBDFEINLSV

INSTALLATIONSHANDBUCH

Zum sicheren und ordnungsgemäßen Gebrauch der Klimageräte das Installationshandbuch gründlich durchlesen.

MANUAL DE INSTALACIÓN

Para un uso seguro y correcto, lea detalladamente este manual de instalación antes de montar la unidad de aire acondicionado.

INSTALLATION MANUAL

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

MANUALE DI INSTALLAZIONE

Per un uso sicuro e corretto, leggere attentamente questo manuale di installazione prima di installare il condizionatore d’aria.

INSTALLATIEHANDLEIDING

Voor een veilig en juist gebruik moet u deze installatiehandleiding grondig doorlezen voordat u de airconditioner installeert.

RUHGPOSWRO CZ

РУКОВОДСТВО ПО УСТАНОВКЕ

Для осторожного и правильного использования прибора необходимо тщательно ознакомиться с данным руководством по установке до выполнения установки кондиционера.

PŘÍRUČKA K INSTALACI

V zájmu bezpečného a správného používání si před instalací klimatizační jednotky důkladně pročtěte tuto příručku k instalaci.

NÁVOD NA INŠTALÁCIU

Pre bezpečné a správne použitie si pred inštalovaním klimatizačnej jednotky, prosím, starostlivo prečítajte tento návod na inštaláciu.

TELEPÍTÉSI KÉZIKÖNYV

A biztonságos és helyes használathoz, kérjük, olvassa el alaposan ezt a telepítési kézikönyvet, mielőtt telepítené a légkondicionáló egységet.

PODRĘCZNIK INSTALACJI

W celu bezpiecznego i poprawnego korzystania należy przed zainstalowaniem klimatyzatora dokładnie zapoznać się z niniejszym podręcznikiem instalacji.

INSTALLATIONSHANDBOK

Läs den här installationshandboken noga innan luftkonditioneringsenheten installeras, för säker och korrekt användning.

MANUAL CU INSTRUCŢIUNI DE INSTALARE

Pentru o utilizare corectă şi sigură, vă rugăm să citiţi cu atenţie acest manual înainte de a instala unitatea de aer condiţionat.

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Contents

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

1.1. Before installation and electric work .............................. 2

1.2. Before installation .......................................................... 2

1.3. Before installation (relocation) - electrical work ............. 2

1.4. Before starting the test run............................................. 3

2. Parts List....................................................................................... 4

3. Applicable models......................................................................... 6

4. Preparation for installation .............................................................7

5. Installation Procedures ..................................................................9

6. Heater Installation........................................................................ 10

7. Electrical Wiring...........................................................................33

8. Relay Box Installation ..................................................................37

9. Reassembly .................................................................................41

10.Confirmation of proper operation .................................................41

* For information not contained in this booklet, please refer to the Installation Manual of the outdoor unit.

• Consult your dealer for purchasing the Relay Box.

• The base heater is packaged separately from this product.

1. Safety precautions

1.1. Before installation and electric work

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 an action that must be avoided. : Indicates that important instructions must be followed. : Indicates a part which must be grounded. : Beware of electric shock. (This symbol is displayed on the main unit label.)

<Color: yellow>

HIGH VOLTAGE WARNING:

• Control box houses high-voltage parts.

• When opening or closing the front panel of the control box, do not let it come into contact with any of the internal components.

• Before inspecting the inside of the control box, turn off the power, keep the unit off for at least 10 minutes, and confirm that the voltage between FT-P and FT-N on INV Board has dropped to DC20V or less. (It takes about 10 minutes to discharge electricity after the power supply is turned off.)

Warning:

• Ask the dealer or an authorized technician to install the air conditioner.

- Improper installation b y the user may result in water leakage, electric shock,

or fire.

• 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.

• Use the specified cables for wiring. Make the connections securely so that the outside force of the cable is not applied to the terminals.

- Inadequate connection and fastening may generate heat and cause a fire.

• Always use Relay Box and other accessories specified by Mitsubishi Electric.

- Ask an authorized tech nician to install the accessories. Improper inst allation

by the user may result in water leakage, electric shock, or fire.

• Never repair the unit. If the air conditioner must be repaired, consult the dealer.

- If the unit is repaired improperly, water leakage, electric shock, or fire may

result.

• 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.

• To reduce the risk of electric shock, do not install the unit when it is raining.

• Never attempt to repair the unit without the proper qualifications. If the air conditioner must be repaired consult the dealer, contractor or qualified Refrigeration Engineer.

- If the unit is repaired improperly, water leakage, electric shock, or fire may

result.

• Have all electric work done by a licensed electrician according to the “Electric Facility Engineering Standard”, the “Wire Regulations in each area” and the instructions given in this manual and always use a dedicated power supply.

- If the power source capacity is inadequat e or electric work is performed

improperly, electric shock and fire may result.

• Securely install the outdoor unit terminal cover (panel).

- If the terminal cover (panel ) i s not installed properly, dust or water may

enter the outdoor unit and fire or electric shock may result.

• When moving and reinstalling the air conditioner, consult the dealer or an authorized technician.

- If the air conditioner is installe d improperly, water leakage, electric shock, or

fire may result.

• Do not reconstruct or change the settings of the protection devices.

- If the pressure switch, thermal switch, fuse, or other protecti on device is

shorted or operated forcibly, or parts other than those specified by Mitsubishi Electric are used, fire or explosion may result.

• To dispose of this product, consult your dealer.

• The installer and system specialist shall secure safety against leakage according to local regulation or standards.

- Choose the appropriate wire size and the switch cap acities for the main

power supply described in this manual if local regulations are not available.

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

1.2.

Before installation

Caution:

• Do not use the air conditioner in special environments.

- Oil, steam, sulfuric smoke, etc. ca n significantly reduce the performance of

the air conditioner or damage its parts.

• When installing the unit in a hospital, communication station, or similar place, provide sufficient protection against noise.

- Inverter equipment, privat e power g enera tor, high-frequency medical equip-

ment, or radio communication equipment may cause the air conditioner to operate erroneously, or fail to operate. On the other hand, the air conditioner may affect such equipment by creating noise that disturbs medical treatment or image broadcasting.

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

1.3. Before installation (relocation) -

electrical work

Caution:

• Ground the unit.

- Do not connect the ground wire to gas or water pipes, lightning rods, or tel-

ephone ground lines. Improper grounding may result in electric shock.

• Install the power cable so that tension is not applied to the cable.

- Tension may cause the cable to break and generate heat and cause a fire.

• Install a leak circuit breaker, as required.

- If a leak circuit breaker is not installed, elect ric shock may result.

• Use power line cables of sufficient current carrying capacity and rating.

- Cables that are too small may leak, generate heat, and cause a fire.

• Use only a circuit breaker and fuse of the specified capacity.

- A fuse or circuit breaker of a larger capacity, or the use of a substitute

simple steel or copper wire may result in a general unit failure or fire.

• Stop the operation and turn off the power before cleaning.

• Do not wash the air conditio ner units.

- Washing them may cause an electric shock.

 Before installing the unit, make sure you read all the “Safety

precautions”.

 The “Safety precautions” provide very important points

regarding safety. Make sure you follow them.

Warning:

Carefully read the labels affixed to the main unit.

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• Be very careful about transporting the product.

- One person should not carry the product. Its weight is in excess of 20 kg [45 LBS].

- Some products u se PP bands for p ackaging. Do not use any PP bands as a means of transportation. It is dangerous.

• Safely dispose of the packing materials.

- Packing materials, such as nails and other metal or wooden parts, may cause stabs or other injuries.

- Tear apart and throw away plastic packaging bags so that children will not play with them. If children play with a plastic bag which has not been torn apart, they face the risk of suffocation.

• Never connect in reverse phases.

• Install the power cable so that tension is not applied to the cable.

• Do not wash the air conditioner units.

1.4. Before starting the test run

Caution:

• Turn on the power at least 12 hours before starting operation.

- Starting operation immediately after turning on the main power switch can result in irreversible damage to internal parts. Keep the power switch turned on during the operational season. Make sure of the phase order of power supply and voltage between each phase.

• Do not touch the switches with wet fingers.

- Touching a switch with wet fingers can result in an electric shock.

• Do not touch the refrigerant pipes during and immediately after operation.

- During and immediately after operation, the refrigerant pipes may be hot or

cold, depending on the condition of the refrigerant flowing through the refrigerant piping, compressor, and other refrigeran t cycle parts. Your hands may suffer burns or frostbite if you touch the refrigerant pipes.

• Do not operate the air conditioner with the panels and guards removed.

- Rotating, hot, or high-voltage parts can cause injuries.

• Do not turn off the power immediately after stopping operation.

- Always wait at least 5 minutes before turning off the power. Otherwise,

drainage water leakage or mechanical failure of sensitive parts may occur.

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2. Parts List

<PAC-BH02KTY-E>

This kit contains the following parts.

<PAC-BH01EHT-E>

This kit contains the following parts.

* Use proper mounting brackets according to the outdoor unit model.

Refer to table “Heater mounting bracket list” in section 4. “Preperation for ins tallation” on page 7.

Parts name Relay Box Installation Manual

Shape

Qty. 1 1

Parts name A Cable strap B M5 screw C Cable tie (black) D Wire seal

Shape

Qty. 1 3 4 1

Parts name Base Heater

Shape

Qty. 1

Parts name

* Heater mounting brackets

1234567

Shape

Qty.1111111

Parts name M5 screw Cable tie (blue) Pipe cover

Shape

Qty. 5 (2 for spare) 5 1

Page 5

<PAC-BH02EHT-E>

This kit contains the following parts.

* Use proper mounting brackets according to the outdoor unit model.

Refer to table “Heater mounting bracket list” in section 4. “Preperation for ins tallation” on page 8.

<PAC-BH03EHT-E>

This kit contains the following parts.

Parts name Base Heater

Shape

Qty. 1

Parts name

* Heater mounting brackets

123456

Shape

Qty.111111

Parts name

* Heater mounting brackets

7890ab

Shape

Qty.113111

Parts name M5 screw Cable tie (blue) Pipe cover

Shape

Qty. 6 5 1

Parts name Base Heater

Shape

Qty. 2

Parts name

* Heater mounting brackets

123456

Shape

Qty.112111

Page 6

* Use proper mounting brackets according to the outdoor unit model.

Refer to table “Heater mounting bracket list” in section 4. “Preperation for ins tallation” on page 9.

3. Applicable models

Parts name

* Heater mounting brackets Wiring fixing brackets

7890

Shape

Qty.1311

Parts name Cable strap M5 screw Cable tie (blue)

Shape

Qty . 2 10 (2 for spare) 5

Type

Unit model Target sales area Applicable models S module L module XL module

PAC-BH02KTY-E

Europe and

other countries

PUHY-P○YHM-A 200, 250, 300 350, 400, 450 – PUHY-EP○YHM-A 200 250, 300 – PUHY-P○YJM-A 200, 250, 300 350, 400 450 PUHY-EP○YJM-A 200 250 300 PUHY-HP○YHM-A 200, 250 – – PUHY-RP○YJM-A 200, 250, 300, 350 – – PURY-P○YHM-A 200, 250, 300 350, 400 – PURY-EP○YHM-A 200 250, 300 – PURY-P○YJM-A 200, 250, 300 350, 400 450 PURY-EP○YJM-A 200 250, 300 350 PURY-RP○YJM-A – 200, 250, 300 –

Page 7

4. Preparation for installation

<PAC-BH01EHT-E>

• This base heater and the Relay Box must be installed by a dealer or certified technician.

• Refer to the table below for the required mounting brackets for the outdoor unit on which the base heater will be installed.

Heater mounting bracket list

* The numbers in the table indicate the number of parts to be used.

Specifications of the outdoor unit base heater

• The following to ols are required to install the base heater. These are field-supplied.

Phillips screwdriver (magnetic tip): Use to remove or install panels. Phillips screwdriver (Minimum 40 cm, magnetic tip): Use to install or uninstall the mounting brackets, and to screw or unscrew the screws on the accumulator. Ratchet, spanner: Use to fix the mounting brackets to the screw holes on the accumulator. Use when the screws on the accumulator are hard to remove. Threaded rod (Minimum 60 cm, M5): Use to install the mounting brackets to the base. Nippers: Use to cut cable ties. Tester: Use to check the base heater for proper operation. Gloves: Use to keep your hands out of direct contact with the heat exchanger fins, hot section, etc. Helmet or cap: Use to keep your head protected when you bump your head against the outdoor unit fan motor. Head light: Use when it is too dark to see the bracket mounting area.

• Check that the main power on the outdoor unit is turned off.

• Base heater installation requires many screws to be unscrewed. Do not lose these screws.

• Thoroughly remove the dust from the base of the unit.

Target sales area Applicable models

Heater mounting bracket Accumulator type

1234567

Large

Small

With Oil tank Non Oil tank

Europe and

other countries

PUHY-P200YHM-A 1 1 1 1 - 1 - - PUHY-P250YHM-A 1 1 1 1 - 1 - - PUHY-P300YHM-A 1 1 1 - 1 1 - - PUHY-EP200YHM-A 1 1 1 1 - 1 - - PUHY-P200YJM-A 1 1 1 1 - 1 - - PUHY-P250YJM-A 1 1 1 1 - 1 - - PUHY-P300YJM-A 1 1 1 - 1 1 - - PUHY-EP200YJM-A 1 1 1 1 - 1 - - PUHY-HP200YHM-A 1 1 1 - 1 1 - - PUHY-HP250YHM-A 1 1 1 - 1 1 - - PUHY-RP200YJM-A 1 - 1 - 1 1 1 - PUHY-RP250YJM-A 1 - 1 - 1 1 1 - PUHY-RP300YJM-A 1 - 1 - 1 1 1 - PUHY-RP350YJM-A 1 - 1 - 1 1 1 - PURY-P200YHM-A 1 1 1 - 1 1 - - PURY-P250YHM-A 1 1 1 - 1 1 - - PURY-P300YHM-A 1 1 1 - 1 1 - - PURY-EP200YHM-A 1 1 1 - 1 1 - - PURY-P200YJM-A 1 1 1 - 1 1 - - PURY-P250YJM-A 1 1 1 - 1 1 - - PURY-P300YJM-A 1 1 1 - 1 1 - - PURY-EP200YJM-A 1 1 1 - 1 1 - - -

Output

[W] 181 (220)/198 (230)/216 (240)

[W/m] 116 (220)/127 (230)/139 (240) Power supply voltage [V] 220, 230, 240 Heater length [mm (inch)] 1554 (62.2) Heater diameter [mm (inch)] ø8 (ø0.32)

Page 8

<PAC-BH02EHT-E>

• This base heater and the Relay Box must be installed by a dealer or certified technician.

• Refer to the table below for the required mounting brackets for the outdoor unit on which the base heater will be installed. Heater mounting bracket list

* The numbers in the table indicate the number of parts to be used.

Specifications of the outdoor unit base heater

• The following to ols are required to install the base heater. These are field-supplied. Phillips screwdriver (magnetic tip): Use to remove or install panels. Phillips screwdriver (Minimum 40 cm, magnetic tip): Use to install or uninstall the mounting brackets, and to screw or unscrew the screws on the accumulator. Ratchet, spanner: Use to fix the mounting brackets to the screw holes on the accumulator. Use when the screws on the accumulator are hard to remove. Threaded rod (Minimum 60 cm, M5): Use to install the mounting brackets to the base. Nippers: Use to cut cable ties. Tester: Use to check the base heater for proper operation. Gloves: Use to keep your hands out of direct contact with the heat exchanger fins, hot section, etc. Helmet or cap: Use to keep your head protected when you bump your head against the outdoor unit fan motor. Head light: Use when it is too dark to see the bracket mounting area.

• Check that the main power on the outdoor unit is turned off.

• Base heater installation requires many screws to be unscrewed. Do not lose these screws.

• Thoroughly remove the dust from the base of the unit.

Target

sales

area

Applicable models

Heater mounting bracket Accumulator type

1234567890ab

Vertical

installation

Horizontal

installation

Europe

and

other

countries

PUHY -P350YHM-A 1 1 - 1 - - 1 1 3 - - - PUHY -P400YHM-A 1 1 - 1 - - 1 1 3 - - - PUHY -P450YHM-A 1 1 - 1 - - 1 1 3 - - - PUHY-EP250YHM-A 1 1 - 1 - - 1 1 3 - - - PUHY-EP300YHM-A 1 1 - 1 - - 1 1 3 - - - PUHY-P350YJM-A 1 1 - 1 - - 1 1 3 - - - PUHY-P400YJM-A 1 1 - 1 - - 1 1 3 - - - PUHY-EP250YJM-A 1 1 - 1 - - 1 1 3 - - - PURY-P350YHM-A 1 - 1 1 - - 1 1 3 - - - PURY-P400YHM-A 1 - 1 1 - - 1 1 3 - - - PURY-EP250YHM-A 1 - 1 1 - - 1 1 3 - - - PURY-EP300YHM-A 1 - 1 1 - - 1 1 3 - - - PURY-P350YJM-A 1 - 1 1 - - 1 1 3 - - - PURY-P400YJM-A 1 - 1 1 - - 1 1 3 - - - PURY-EP250YJM-A 1 - 1 1 - - 1 1 3 - - - PURY-EP300YJM-A 1 - 1 1 - - 1 1 3 - - - PURY-RP200YJM-A 1 - 1 - - - - - 1 1 1 1 PURY-RP250YJM-A 1 - 1 - - - - - 1 1 1 1 PURY-RP300YJM-A 1 - 1 - - - - - 1 1 1 1 -

Output

[W] 181 (220)/198 (230)/216 (240)

[W/m] 89 (220)/98 (230)/107 (240) Power supply voltage [V] 220, 230, 240 Heater length [mm (inch)] 2024 (81.0) Heater diameter [mm (inch)] ø8 (ø0.32)

Page 9

<PAC-BH03EHT-E>

• This base heater and the Relay Box must be installed by a dealer or certified technician.

• Refer to the table below for the required mounting brackets for the outdoor unit on which the base heater will be installed. Heater mounting bracket list

* The numbers in the table indicate the number of parts to be used.

Specifications of the outdoor unit base heater

• Check that the main power on the outdoor unit is turned off.

• Base heater installation requires many screws to be unscrewed. Do not lose these screws.

• Thoroughly remove the dust from the base of the unit.

5. Installation Procedures

(1) Removing the panels and the control box

Target sales area Applicable models

Heater mounting bracket Wiring fixing bracket

12345678 9 0

Europe and

other countries

PUHY-P450YJM-A

11211113 1 1

PUHY-EP300YJM-A PURY-P450YJM-A PURY-EP350YJM-A

Output

[W] 362 (220)/396 (230)/432 (240)

[W/m] 102 (220)/111 (230)/121 (240) Power supply voltage [V] 220, 230, 240 Heater length [mm (inch)] 1783 × 2 (71.3 × 2) Heater diameter [mm (inch)] ø8 (ø0.32)

1. Remove the top and bottom access panels.

2. Removing the control box

1 Remove the cover. 2 Unplug the cable connectors. 3 Disconnect the compressor wiring from

the terminal block on the compressor.

4 Unplug the power wire from the power

supply terminal block.

5 Remove the control box. 6 Loosen the fan motor power wire.

Page 10

6. Heater Installation

<PAC-BH01EHT-E>

Run the base heater along the groove on the unit base.

● Install the base heater inside the unit by following the procedures (6)-1 through (6)-3 below.

(6)-1 Unscrew the screws as shown in the figure below.

Caution: To reduce the risk of injury, wear protective gear when installing the base heater.

Groove on the base

Heater mounting bracket 2 or 7

Base heater

Heater mounting bracket

1 , 6

Note: The figure shows a simplified view of the unit base without the components on it.

Heater mounting bracket

4 or 5

Heater mounting bracket 3

Unscrew each screw that is for the base leg and accumulator installation. (1 pc. each)

For the LARGE Accumulator, remove the screw (1 pc.).

For the SMALL Accumulator (see the figure below), do not remove any screw.

Base heater installation position

SMALL Accumulat or

LARGE Accumulator

Non Oil tank

Page 11

Unscrew a screw that is for the Oil tank installation.

LARGE Accumulator With Oil tank

Unscrew each screw that is for the base leg and accumulator installation. (1 pc. each)

Page 12

(6)-2 Attac

h the base heater to the outdoor unit base.

Insert the left side of the base heater (longer ends) between the heat exchanger and the refrigerant pipes, and bring the base heater down to the outdoor unit base. Route the wiring on the left side of the base heater under the refrigerant pipes to the front of the unit base. Then, run the tip of the base heater under the refrigerant pipes to the front of the unit base.

Base heater

After the base heater is inserted (before the heater mounting brackets are installed)

Groove on the base

Run the base heater along the groove on the base to keep it out of contact with other pipes.

Heat exchanger

Refrigerant pipe

Page 13

(6)-3 Install the heater mounting brackets.

* For easier installation of the heater mounting brackets 2 through 5 and 7, use a threaded rod (M5). Follow the steps below.

Step 1: Install the heater mounting

bracket

4 or 5.

Step 2: Install the heater mounting

bracket

Step 3: Install the heater mounting

bracket

2 or 7.

Step 4: Install the heater mounting

brackets

1 and 6.

* Remove the Threaded rod after the use is completed.

Step 3

Step 2

Step 1

Step 4

Threaded rod (M5)

LARGE Accumulator With Oil tank

Step 3

Page 14

Step 1. Install the heater mounting bracket 4 or 5.

* When using the heater mounting bracket 4

or 5, refer to ”Applicable models” on page 6 and “Heater mounting bracket list” on page 7.

Base heater

For the LARGE Accumulator, install heater mounting bracket 4 as shown in the figure below.

For the SMALL Accumulator, install heater mounting bracket 5 as shown in the figure below.

Base heater

Accumulator support leg

Thread part for the Threaded rod (M5)

Heater mounting bracket

Tilt the heater mounting bracket 4 or 5 a little to attach it to the heater, slide it to the Accumulator support leg, and secure them together.

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the supplied screw (M5).

Use the screw (M5) that was removed.

Accumulator support leg

Page 15

Step 2. Install the heater mounting bracket 3.

Step 3. Install the heater mounting bracket 2 or 7.

Base heater

Note) As shown in the figures below, properly secure the base heater and the mounting bracket.

Base heater

Accumulator support leg

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the screw (M5) that was removed.

Heater mounting bracket

Base

Base heater

Base

CORRECT INCORRECT

Note) Properly secure the base heater and the mounting bracket. <Refer to “Note)” in Step 2.>

Base heater

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the supplied screw (M5).

For the LARGE Accumulator (Non Oil tank) and the SMALL Accumulator, install heater mounting bracket 2 as shown in the figure below.

For the LARGE Accumulator (With Oil tank), install heater mounting bracket 7 as shown in the figure below.

Base heater

Thread part for the Threaded rod (M5)

Oil tank

Use the screw (M5) that was removed.

Heater mounting bracket

Page 16

Step 4. Install the heater mounting brackets 1 and 6.

Note) Run the base heater along the inner side of the groove

on the base, and fix the base heater with the mounting brackets

1 and 6.

Base heater

Heater mounting bracket

Use the supplied screw (M5).

Use the screw (M5) that was removed.

Heater mounting bracket

Base heater

Note) Secure the base heater so that it touches the bottom of

the base.

Base heater

Groove on the base (inner side)

Bottom of the base

Groove on the base (outer side)

Page 17

<PAC-BH02EHT-E>

Run the base heater along the groove on the unit base.

Heater mounting bracket 3

Heater mounting bracket b

Base heater

Heater mounting bracket 1 , 9

Note: The figure shows a simplified view of the unit base without the components on it.

Heater mounting bracket a

Heater mounting bracket 0

Accumulator: Vertical installation

Groove on the base

Accumulator: Horizontal installation

Note: The figure shows a simplified view of the unit base without the components on it.

Groove on the base

Heater mounting bracket 2 or 3 * PUHY models: 2

* PURY models: 3

Heater mounting bracket 4

Base heater

Heater mounting brackets

8 and 9 (2 pcs.)

Heater mounting bracket 7

Heater mounting bracket 1 , 9

Page 18

● Install the base heater inside the unit by following the procedures (6)-1 through (6)-4 below.

(6)-1 Unscrew the screws as shown in the figure below.

Refer to table “Heater mounting bracket list” on page 8 for accumulator type.

Caution: To reduce the risk of injury, wear protective gear when installing the base heater.

Unscrew the screw (1 pc.) that is for the base leg installation.

Unscrew the accumulator fixing screws (2 pcs.).

Oil tank

Accumulator: Vertical installation

Accumulator: Horizontal installation

Unscrew the accumulator fixing screws (2 pcs.).

Accumulator: Horizontal installation

Unscrew the screw (1 pc.) that is for the base leg installation.

Accumulator: Vertical installation

Page 19

(6)-2 Install the heater mounting brackets 8 and 9 to the base heater.

* Only when the accumulator is installed horizontally

Mounting brackets 8 and 9 installation position

Installation

Heater mounting bracket 9

Base heater

Heater mounting bracket

Use the supplied screws (M5).

After installation

Heater mounting bracket 8

Base heater

Heater mounting brackets 9: 2 pcs. Supplied screws (M5): 2 pcs.

Note) Install the mounting bracket

8 so that each

bent surfaces of the bracket are parallel to the base heater.

Page 20

(6)-3

Attach the base heater to the outdoor unit base.

Base heater

After the base heater is inserted (before the heater mounting brackets are installed)

Groove on the base

Run the base heater along the groove on the base to keep it out of contact with other pipes.

Accumulator: Vertical installation Accumulator: Horizontal installation

Refrigerant pipe

Heat exchanger

Page 21

(6)-4 Install the heater mounting brackets.

* For easier installation of the heater mounting brackets 2 through 6, use a threaded rod (M5). Follow the steps below.

Step 1: Install the heater mounting brackets 0 and a, or 4. <Accumulator: Vertical installation> Install the heater mounting brackets

0 and a.

<Accumulator: Horizontal installation> Install the heater mounting bracket

Step 2: Install the heater mounting bracket

b or 7.

<Accumulator: Vertical installation> Install the heater mounting bracket

<Accumulator: Horizontal installation> Install the heater mounting bracket

Step 3: Install the heater mounting bracket

2 or 3.

<PUHY models> Install the heater mounting bracket

<PURY model> Install the heater mounting bracket

Step 4: Install the heater mounting brackets

1 and 9.

* Remove the Threaded rod after the use is completed.

Step 3

Step 2

Step 1

Step 4

Threaded rod (M5)

Accumulator: Vertical installation

Accumulator: Horizontal installation

Step 1 Step 2

Page 22

Step 1. Install the heater mounting brackets 0 and a, or 4.

* When using the heater mounting brackets 0 and a

or 4, refer to ”Heater mounting bracket list” on page 8.

Base heater

For the accumulator vertical installation, install heater mounting brackets 0 and a.

Base heater

Accumulator support leg

Thread part for the Threaded rod (M5)

Heater mounting bracket

Heater mounting bracket a

Use the screw (M5) that was removed.

Accumulator support leg

Accumulator: Vertical installation

Heater mounting bracket a

Heater mounting bracket 0

Thread part for the Threaded rod (M5)

Note) As shown in the figure below, hook the base heater in the hook of the mounting bracket 0, slide the bracket toward

the Accumulator support leg, and properly secure them together.

Heater mounting bracket

Base heater

Base

Hook of the mounting bracket

Note) As shown in the figures below, properly secure the base heater and the mounting bracket.

Base heater

Heater mounting bracket

Base

Base heater

Base

CORRECT INCORRECT

Page 23

For the accumulator horizontal installation, install heater mounting bracket 4.

Base heater

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the screw (M5) that was removed.

Accumulator support leg

Note) Properly secure the base heater and the mounting bracket. <Refer to “Note)” in Step 1.>

Page 24

Step 2. Install the heater mounting bracket b or 7.

* When using the heater mounting bracket b

or 7, refer to ”Heater mounting bracket list” on page 8.

Base heater

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the screw (M5).

Oil tank

For the accumulator vertical installation, install heater mounting bracket b.

Accumulator

For the accumulator horizontal installation, install heater mounting bracket 7.

Use the screw (M5) that was removed.

Accumulator: Horizontal installation

Heater mounting bracket

Thread part for the Threaded rod (M5)

Base heater

Heater mounting bracket

Accumulator support leg

Note) Properly secure the base heater and the mounting bracket. <Refer to “Note)” in Step 1.>

Note) As shown in the figure below, hook the base heater in the hook of the mounting bracket 7, slide the bracket toward

the Accumulator support leg, and properly secure them together.

Heater mounting bracket

Base heater

Base

Hook of the mounting bracket

Page 25

Step 3. Install the heater mounting bracket 2 or 3.

* When using the heater mounting bracket 2

or 3, refer to “Heater mounting bracket list” on page 8.

Base heater

For PUHY models, install heater mounting bracket 2 .

For PURY models, install heater mounting bracket 3.

Base heater

Thread part for the Threaded rod (M5)

Solenoid valve block

Heater mounting bracket

Use the supplied screw (M5).

Note) Properly secure the base heater

and the mounting bracket. <Refer to “Note)” in Step 1.>

Thread part for the Threaded rod (M5)

Note) Properly secure the base heater

and the mounting bracket. <Refer to “Note)” in Step 1.>

Heater mounting bracket

Use the supplied screw (M5).

Solenoid valve block mounting plate

Page 26

Step 4. Install the heater mounting brackets 1 and 9.

Note) Run the base heater along the inner side of the groove

on the base, and fix the base heater with the mounting brackets 1 and 9.

Base heater

Heater mounting bracket

Use the supplied screw (M5).

Use the screw (M5) that was removed.

Heater mounting bracket

Base heater

Note) Secure the base heater so that it touches the bottom of

the base.

Base heater

Groove on the base (inner side)

Bottom of the base

Groove on the base (outer side)

Page 27

<PAC-BH03EHT-E>

Run the base heater along the groove on the unit base.

● Install the base heater inside the unit by following the procedures (6)-1 through (6)-3 below.

(6)-1 Unscrew the screws as shown in the figure below.

Caution: To reduce the risk of injury, wear protective gear when installing the base heater.

Heater mounting bracket 3

Left base heater (left side of the unit)

Heater mounting bracket 1 , 8

Note: The figure shows a simplified view of the unit base without the components on it.

Heater mounting bracket 3

Heater mounting bracket 7

Groove on the base

Heater mounting bracket 2

Heater mounting bracket 6

Right base heater (right side of the unit)

Heater mounting bracket 4 , 8 Heater mounting bracket 5 , 8

Unscrew the screw (1 pc.) that is for the base leg installation.

Unscrew the accumulator fixing screw (1 pc.).

Unscrew the screw (1 pc.) that is for the base and compressor cover installation.

Page 28

(6)-2 Attach the base heater to the outdoor unit base.

Insert the right and left base heaters from the top into the outdoor unit.

After the base heater is inserted (before the heater mounting brackets are installed)

Groove on the base

Run the base heater along the groove on the base to keep it out of contact with other pipes.

Right base heater (right side of the unit)

Left base heater (left side of the unit)

Page 29

(6)-3 Install the heater mounting brackets.

* For easier installation of the heater mounting brackets 2, 3, and 6, use a threaded rod (M5). Follow the steps below.

Step 1. Install the heater mounting bracket 2.

Step 1: Install the heater mounting bracket 2. Step 2: Install the heater mounting bracket

Step 3: Install the heater mounting brackets

1 and 8.

Step 4: Install the heater mounting brackets

4 and 8.

Step 5: Install the heater mounting bracket

Step 6: Install the heater mounting bracket

Step 7: Install the heater mounting brackets

5 and 8.

Step 8: Install the heater mounting bracket

* Remove the Threaded rod after the use is completed.

Step 3

Step 1 Step 2

Step 4

Threaded rod (M5)

Step 5 Step 6

Step 7 Step 8

Base heater

Heater mounting bracket

Thread part for the Threaded rod (M5)

Use the supplied screw (M5).

Heater mounting bracket

Note) As shown in the figure below, properly secure the

base heater and the mounting bracket 2.

Base heater

Base

Page 30

Step 2. Install the heater mounting bracket 3.

Step 3. Install the heater mounting brackets 1 and 8.

Step 4. Install the heater mounting brackets 4 and 8.

Base heater

Thread part for the Threaded rod (M5)

Heater mounting bracket

Use the supplied screw (M5).

Note) As shown in the figures below, properly secure

the base heater and the mounting bracket.

Base heater

Heater mounting bracket

Base

Base heater

Base

CORRECT INCORRECT

Base heater

Heater mounting bracket

Use the supplied screw (M5).

Use the screw (M5) that was removed.

Heater mounting bracket

Note) Place the base heater in the middle of the base, and fix the

base heater with mounting brackets 1 and 8.

Base heater

Groove on the base (inner side)

Bottom of the base

Groove on the base (outer side)

C C

Note) Secure the base heater so that it touches the

bottom of the base.

Base heater

Heater mounting bracket

Use the supplied screw (M5).

Heater mounting bracket

Base heater

Groove on the base (inner side)

Bottom of the base

Groove on the base (outer side)

Note) Secure the base heater so that it touches the

bottom of the base.

Note) Run the base heater along the outer side of the groove

on the base, and fix the base heater with the mounting brackets 4 and 8.

Page 31

Step 5. Install the heater mounting bracket 6.

Step 6. Install the heater mounting bracket 3.

Step 7. Install the heater mounting brackets 5 and 8.

Base heater

Heater mounting bracket

Note) Properly secure the base heater

and the mounting bracket. <Refer to “Note)” in Step 2.>

Accumulator support leg

Thread part for the Threaded rod (M5)

Use the screw (M5) that was removed. (Screw down the accumulator support leg as well.)

Base heater

Heater mounting bracket

Note) Properly secure the base heater

and the mounting bracket. <Refer to “Note)” in Step 2.>

Use the supplied screw (M5).

Thread part for the Threaded rod (M5)

Base heater

Heater mounting bracket

Use the supplied screw (M5).

Heater mounting bracket

Note) Place the base heater in the middle of the base, and fix the

base heater with mounting brackets 5 and 8.

Base heater

Groove on the base (outer side)

Bottom of the base

Groove on the base (inner side)

Note) Secure the base heater so that it touches the

bottom of the base.

Use the supplied screw (M5).

Page 32

Step 8. Install the heater mounting bracket 7.

Base heater

Heater mounting bracket

Base heater

Groove on the base (outer side)

Bottom of the base

Groove on the base (inner side)

Note) Secure the base heater so that it touches the

bottom of the base.

Note) Run the base heater along the inner side of the groove

on the base, and fix the base heater with mounting bracket 7.

Use the screw (M5) that was removed. (Screw down the accumulator support leg as well.)

Note) Properly secure the base heater and the mounting bracket.

Page 33

7. Electrical Wiring

<PAC-BH01EHT-E>

Connect the base heater wiring to the Relay Box as shown in the figures below. Install the Relay Box after connecting the base heater wiring.

i) Wiring on the left side of the Relay Box ii) Wiring on the right side of the Relay Box

Base heater (wiring on the right side)

Top view of the unit

Base heater wiring

Relay Box

Relay Box (Bottom side)

Front view of the unit

Base heater (wiring on the left side)

Base heater (wiring on the right side)

Base heater (wiring on the left side)

With the supplied pipe cover, wrap the pipe that branches out from the pipe between the compressor and accumulator. Fix the pipe cover and the base heater wiring (right side) with the supplied cable tie.

Use the supplied pipe cover. Use the supplied cable tie.

Base heater (wiring on the right side)

Take out the base heater wiring (right side) from the cable hole on the outdoor unit front panel, then fix the wiring to the strap.

Base heater (wiring on the right side)

Fix the wiring to the strap on the outdoor unit front panel.

Cable hole on the outdoor unit front panel

Page 34

<PAC-BH02EHT-E>

Connect the base heater wiring to the Relay Box as shown in the figures below. Install the Relay Box after connecting the base heater wiring.

i) Wiring on the left side of the Relay Box ii) Wiring on the right side of the Relay Box

Base heater (wiring on the right side)

Top view of the unit

Base heater wiring

Relay Box

Relay Box (Bottom side)

Front view of the unit

Base heater (wiring on the left side)

Base heater (wiring on the right side)

Base heater (wiring on the left side)

Use the supplied cable tie.

Base heater (wiring on the right side)

Fix the wiring to the strap on the outdoor unit front panel.

Cable hole on the outdoor unit front panel

Use the supplied pipe cover.

Base heater (wiring on the right side)

Take out the base heater wiring (right side) from the cable hole on the outdoor unit front panel, then fix the wiring to the strap.

Page 35

<PAC-BH03EHT-E>

Connect the base heater wiring to the Relay Box as shown in the figures below. Perform wiring work of the base heater on the right side of the unit first. Install the Relay Box after connecting the base heater wiring.

Left base heater

Top view of the unit

Base heater wiring

Relay Box

Relay Box (Bottom side)

Front view of the unit

Right base heater

Left side of the unit Right side of the unit

Left base heater (wiring on the left side)

Left base heater (wiring on the right side)

Right base heater (wiring on the left side)

Right base heater (wiring on the right side)

Page 36

i) Right base heater wiring (right side of the unit)

ii) Left base heater wiring (left side of the unit)

Right base heater (wiring on the left side)

Right base heater (wiring on the right side)

To install the wiring fixing bracket 8 to the compressor cover as shown in the figure below, fix the wiring on the right side of the right base heater to the wiring fixing bracket 8 with the supplied cable strap.

Right base heater (wiring on the right side)

Wiring fixing bracket 8 (Screw down the compressor cover fixing screw as well.)

Supplied cable strap

Compressor cover

To install the wiring fixing bracket 9 to the contactor box as shown in the figure below, fix the wiring on the right and left sides of the right base heater to the wiring fixing bracket 9 with the supplied cable strap. Route the wiring behind the contactor box into the cable hole on the outdoor unit front panel.

Contactor box

Supplied cable strap

Right base heater (wiring on the right and left sides)

Wiring fixing bracket 9 (Screw down the contactor box fixing screw as well.)

Left base heater (wiring on the left side)

Left base heater (wiring on the right side)

Fix the wiring on the right and left sides of the right base heater and the wiring on the right side of the left base heater (three wires in total) to the strap on the outdoor unit front panel.

Left base heater (wiring on the right side)

Fix to the strap on the outdoor unit front panel.

Cable hole on the outdoor unit front panel

As marked in the figure above, use the supplied cable ties (2 pcs.) to fix the excess wiring on the right and left sides of the left base heater and the wiring on the right and left sides of the right base heater together.

Page 37

8. Relay Box Installation

Before installing the Relay Box, replace the control box and wiring as they were. * Insert the cable connectors until they click. Attach the Relay Box to the pillar on the left side of the unit and the plate under the control box, using the three supplied M5 screws. The screw labeled X in the figure is there to keep the Relay Box from falling. When performing maintenance, only loosen (but not remove) this screw. Remove the cable strap attached to the pillar. Then, attach the removed cable strap to the hole on the bending parts of the Relay Box cover.

● Secure the cables and lead wires in place. (Referring to the electrical diagram below, connect the lead wires.)

SYMBOL EXPLANATION TB1 Terminal block TB2 Terminal block CN51 Connector (on the outdoor unit controller board) X70 Relay F1 Fuse

Plate

Pillar

Part X

Use the three M5 screws (supplied).

Relay Box

For L module

For S and XL modules

Use the three M5 screws (supplied).

TB1

X70

<PAC-BH01, 02EHT-E>

Outdoor

Relay Box Heater

For

Heater ground

* Neither of PAC-BH01, 02EHT-E base heaters have a ground connection.

Page 38

a. When PAC-BH01EHT-E or PAC-BH02EHT -E is inst alled, connect the base heater power wires to terminals L1 and L2 on the

Relay Box. When PAC-BH03EHT-E is installed, connect the two base heater power wires that have a white line to terminal L1, and connect the other two base heater power wires to terminal L2. Never connect the base heater power wire (L1 or L2) to of the terminal block on the Relay Box. Using a wire seal (D) and a black cable tie (C), water-proof the base heater power wire that was passed through the access hole for the Relay Box wire. * If the diameter of the wire, once it has been wrapped in wire seal, is too large to pass through the Relay Box holes, cut back the

wire seal. Leave enough wire seal to keep the Relay Box water proof. (The recommended width of wire seal is 70 mm for the four base heater power wires.)

Clamp down the base heater power wire at the outlet of the Relay Box with the supplied clamp. If an active filter is installed, disconnect the earth wire of the active filter from the control box, and screw it down as shown in the figure below.

SYMBOL EXPLANATION TB1 Terminal block TB2 Terminal block CN51 Connector (on the outdoor unit controller board) X70 Relay F1 Fuse

X70

<PAC-BH03EHT-E>

Outdoor

Relay Box Heater

* PAC-BH03EHT-E base heater does not have a ground connection.

For

Heater ground

L1L1

<PAC-BH01, 02EHT-E>

Never connect the base heater power wire (L1 or L2) to .

After connecting the base heater power wires, check that either of the wires are not connected to .

Transmission wires (CN51)

Base heater power wires

Power supply wires and earth wire

For Active Filter

Page 39

b. Connect the control wire (CN51: white 5-pin) from the Relay Box as shown in the figure below.

Hold the control cable together with the pipe temperature sensor wiring with a black cable tie (c). Do not run it along with a high voltage wires.

L1L1

<PAC-BH03EHT-E>

Transmission wires (CN51)

Power supply wires and earth wire

For Active Filter

When screwing the terminals together, arrange them back to back so that there will be no gap left between them as shown in the figures below.

CORRECT INCORRECT

Each terminal of two power wires for L1 has a white line on the insulation part. Connect the wires to the correct terminal blocks.

Never connect the base heater power wire (L1 or L2) to .

After connecting the base heater power wires, check that either of the wires are not connected to .

Base heater power wires

CN51 (White)

Wiring route

Run the control wire along with the pipe temperature sensor wiring, and hold them together with a black cable tie (

c).

Page 40

c. Wiring the power wire and earth wire

• Disconnect the round terminal connector <TB1-CN1> inside the control box from the connector CN1A (white) and CN1B (white), and from the secondary side of the power supply terminal block.

• Connect the power wires (round terminal L1, L2, L3, N) from the Relay Box to the L1, L2, L3, N phase of the power supply terminal block (secondary side) inside the control box together with the existing wires. Connect the connector CN1A and CN1B from the Relay Box instead of the connector <TB1-CN1> as located in the figure below.

• Screw down the earth wire from the Relay Box on the earth terminal inside the control box.

• Thread the supplied cable strap (A) through the ø7.1 hole on the plate, and clamp down the cables.

d. Make sure that the base heater is properly installed and that the power wires are properly connected. e. Bundle the excess wires with a cable tie and keep them inside the box. f. When done, place the cover, being careful not to pinch any wire, and then screw down the cover with the screw that was

unscrewed in the previous step. g. Fix the outdoor unit power wires in place with the cable strap attached to the cover. h. To use the base heater, set SW4-6 on the control board in the outdoor unit control box to ON.

Note the following when doing so.

• Be sure to turn off the outdoor unit when setting SW4-6. If SW4-6 is set to ON from the OFF position while the outdoor unit is turned on, the cumulative operation time of the compressor will be cleared. T o stop using the base heater, make sure to turn off the outdoor unit first, set SW4-6 to OFF, remove CN51 from the outdoor unit circuit board, and then remove the Relay Box and the heater.

• When the cumulative operation time of the compressor is cleared while the outdoor unit is turned on, make sure to set SW4-6 to OFF from the ON position. If the power to the outdoor unit is turned back on when SW4-6 is set to ON, the base heater setting will be ON regardless of whether the base heater is actually connected or not.

CN1 (CN1A (white) and CN1B (white))

TB1 (L1, L2, L3, N)

Ground

Thread the supplied cable strap (

A) through the

ø7.1 hole on the plate, and clamp down the cables.

(white)

Relay Box

Control board side (secondary side)

Field-wiring side (primary side)

(white)

OFF ON

LED1

SW1SW5 SW4 SW3 SW2

SW4-6: ON (Make the switch setting when the power is turned off.)

Page 41

9. Reassembly

Reinstall the parts in the reverse order in which they were removed.

10. Confirmation of proper operation

Checking the base heater for normal operation (1) Use a tester to check that the heater wire is not broken for proper operation. (2) Check the output voltage for proper circuit operation.

• Base heater energizing conditions*1: Heating mode, outside temperature of 4°C or below, and the compressor is in operation *1 To meet the above conditions, cool the outdoor temperature sensor (TH7) using a cold spray. When cooling the sensor, make

sure to close the control box panel and Relay Box panel to keep the cold spray from getting on t he board inside of the control box or inside of the Relay Box.

Page 42

Page 43

Page 44

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN

WT06456X01

This product is designed and intended for use in the residential,

commercial and light-industrial environment.

Please be sure to put the contact address/telephone number on

this manual before handing it to the customer.

The product at hand is based on the following EU regulations:

• Low Voltage Directive 2006/95/EC

• Electromagnetic Compatibility Directive 2004/108/EC