Mitsubishi PAC-205FC Installation Manual

1. Outline

This fan controller apply to following units.

These units can be operated on cooling mode at the low ambient temperature with this optional FAN CONTROLLER. Please read carefully this manual and install following this.

Model name Q'TY

1 set 2 set

3. Parts

There are the following parts in this box, and confirm whether there are all attached. There are two kinds of wiring sticker in this box. Please select the pertinent one by model name.

2. Caution

Accessory assy 1

Name

Shape

Amount 2 12 1 1 1

Earth stickerWiring sticker Screw Connector cap Spring

Connector assy

Grommet

Accessory assy 2

Name

Shape

Amount 1 1 3 3 15

Attachment Attachment Attachment Pipe cover Band

(3,4 ON) (All OFF) (1,3 ON) (1,3,4,5,6 ON)

SW0 SW1 SW2 SW3

ON ON ONONON

Model name Q'TY

PRHG-15,20PRHG-8,10

34213421342134267851

Accessory assy 2

Accessory assy 1

Installation manual (This manual)

Fan controller

SW3

SW1

SW0

SW2

Fan controller insideControl circuit board

Only SW3 direction is different.

1. Fan controller changes the outdoor fan speed. Strong wind is injurious to fan speed controller. Please install the windproof when unit is influenced by strong wind such as install it on the place there is no building in surrounding or the rooftop

2. As the case may be the operation with FAN CONTROLLER generate an electromagnetic sound from fan motor. Please consider the soundproofing wall equipment etc. when using the fan controller in the place where the noise becomes a problem. There is no worry which interferes to the unit though an electromagnetic sound might be generated from fan motor.

3. When shipping the fan controller, the dip switch on the control circuit board is set as follows. Do not change factory set of all dip switches.

LOW AMBIENT COOLING PARTS; OPTION PAC-205FC (Fan controller)

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4.1. PRHG-8,10

4.1.1. Install

Insert the thermistorThermistor position

1. The service panel and control box cover are removed.

2. Penetrate the knockout holes at the top panel. The grommet (2 pieces) install to the hole for wiring in the top panel.

4. Confirm the thermistor holder position. The spring insert in the thermistor holder. The thermistor (black wiring) which is connected to the fan controller is put in the holder.

6. The earth sticker and wiring sticker are put on an following place.

1. The earth sticker is put on the pillar.

2. The wiring sticker is put on the service panel cover (inside).

Put a wiring stickerPut a earth sticker

5. Please use the pipe cover (1 piece) and fix with the band (2 pieces).

4.1.2. Wiring

3. After connect wiring, to prevent wiring being damaged with the fin, the pipe cover (2 pieces) and band (4 pieces) are used. In that time, never bundle the thermistor wiring with other wiring.

4. After wiring ends, the wiring is bundled with a remaining band. Never bundle the thermistor and other wiring together.

5. Ensure there is not wiring mistake found, then only install the controller box cover and service panel.

Fan controller

Earth sticker

Unit wiring sticker

Fan controller

1. Disconnect connector C11 - C11. The connector C11 removes to the motor side and the control box side.

2. When the fan controller is installed, the connector is connected in the control box. The wiring from CN04 connect to the terminal block (F/C, N) in the control box.

Please be careful, do not damage wires by the sheet metal edges or the fin, etc.

MF2

Control box

C11 C11

Terminal block

Pipe cover Band

Pipe

Other wiringThermistor wiring

only

Compressor

Service panel

Control box cover

Thermistor wiring only

Other wiring

Fan controller wiring sticker

Instruction assy

Fan controller

Thermistor wiring only

Other wiring

Top panel

Control box

Band

Pipe cover

Thermistor wiring only

Other wiring

Install to the top panel. (Screw 2 pieces)

Install to the holder. (Screw 1 piece)

Thermistor holder position

CN04

UVW L1 L2 L3

MF2

Terminal block

Control box

Fan controller

C11

Top panel

Grommet

Wiring hole

F/C N

Thermistor Thermistor holder

Spring

The thermistor wiring is bundled as follows before the pipe cover is installed.

Please use the following parts during installation of fan controller. There are two kinds of wiring sticker, please use writing as “W881927”.

Wiring from the fan controller is passed through the hole of procedure 2. The thermistor and other wiring should use separate wiring hole. The fan controller install to the top panel with the screw (2 pieces) and install to the holder with the screw (1 piece).

Accessory assy 1

Wiring sticker Earth stickerScrew

Spring

Grommet

Accessory assy 2Accessory assy 1

Use

Not use

Attachment

ONLY PU(H)-7,8,10

Accessory assy 2

Pipe cover Band

Attachment

311

Screw Connector

113152

Wiring sticker

Connector assy

4. Instllation

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4.2. PRHG-15,20

4.2.1. Install

Insert the thermistorThermistor position

1. The service panel and control box cover are removed.

2. Penetrate the knockout holes at the top panel. The grommet (2x2 pieces) install to the hole for wiring in the top panel.

6. The earth sticker and wiring sticker are put on an following place.

1. The earth sticker (2x1 pieces) is put on the pillar.

2. The wiring sticker (1 piece) is put on the service panel cover (inside).

Put a wiring stickerPut a earth sticker

4.2.2. Wiring

4. After wiring ends, the wiring is bundled with a remaining band. Never bundle the thermistor and other wiring together.

Earth sticker

Please be careful, do not damage wires by the sheet metal edges or the fin, etc.

Pipe cover Band

Pipe

Thermistor holder position

Compressor

Thermistor wiring only

Other wiring

Band

Pipe cover

Thermistor wiring only

Other wiring

Service panel

Control box cover

Fan controller wiring sticker

Instruction assy

Unit wiring sticker

Fan controller

Install to the pillar. (Screw 1 piece)

Install to the top panel. (Screw 2 pieces)

Other wiring

Thermistor wiring only

Other wiring

Thermistor wiring only

Fan controller

Control box

MF2 MF3

Terminal block

C11 C11

C21 C21

Fan controller

Thermistor wiring only

Other wiring

Control box

Top panel

CN04

UVW L1 L2 L3

MF2 MF3

Terminal block

CN04

UVW L1 L2 L3

Control box

Fan controller Fan controller

C11

C21

Fan controller

(As well as the another side.)

6. Please use the pipe cover (2x1 pieces) and fix with the band (2x2 pieces).

Accessory assy 1

Wiring sticker Earth stickerScrew

Spring

Grommet

Accessory assy 2Accessory assy 1

Use

Not use

Attachment

ONLY PU(H)-7,8,10

Accessory assy 2

Pipe cover Band

Attachment

Screw Connector

13152

Wiring sticker

Connector assy

Thermistor Thermistor holder

Spring

F/C N

Grommet

Wiring hole

The thermistor wiring is bundled as follows before the pipe cover is installed.

Please use the following parts during installation of fan controller. There are two kinds of wiring sticker, please use writing as “W881927”. The fan controller is necessary for these models by two sets. (The following accessory parts show the fan controller one set.)

Fan controller

Thermistor wiring only

Other wiring

Top panel

Wiring from the fan controller is passed through the hole of procedure 2. The thermistor and other wiring should use separate wiring hole. The fan controller install to the top panel with the screw (2x2 pieces) and install to the pillar with the screw (2x1 pieces).

Confirm the thermistor holder position. (2 places) The spring (2x1 pieces) insert in the thermistor holder. The thermistor (black wiring) which is connected to the fan controller is put in the holder.

Disconnect connector C11 - C11 and C21 - C21. The connector C11 and C21 remove to the motor side and the control box side.

When the fan controller is installed, the connector is connected in the control box. The wiring from CN04 connect to the terminal block (F/C, N) in the control box.

After connect wiring, to prevent wiring being damaged with the fin, the pipe cover (2x2 pieces) and band (2x4 pieces) are used. In that time, never bundle the thermistor wiring with other wiring.

Ensure there is not wiring mistake found, then only install the controller box cover and service panel.

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