Friedrich D4PBB User manual

Installation Manual

Model : D4PBB

ENGLISH

FRANÇAIS

ESPAÑOL

960-911-10

FLEX MULTI SPLIT INSTALLATION

INSTRUCTIONS

Safety Precautions

Installation Manual 3

ENGLISH

To prevent injury to the user or other people and property damage, the following instructions

must be followed.

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness

is classified by the following indications.

nBe sure to observe the cautions specified here as they include important items related to safety.

nIncorrect operation due to ignoring instruction will cause harm or damage. The seriousness is

classified by the following indications.

nMeanings of symbols used in this manual are as shown below.

WARNING

CAUTION

This symbol indicates the possibility of death or serious injury.

This symbol indicates the possibility of injury or damage.

Be sure not to do.

Be sure to follow the instruction.

Be sure to establish an earth connection.

Safety Precautions

WARNING

For electrical work, contact the

dealer, seller, a qualified

electrician, or an Authorized

Service Center.

• Do not disassemble or repair the

product. There is risk of fire or

electric shock.

Be cautious when unpacking and

installing the product.

• Sharp edges could cause injury. Be

especially careful of the case edges

and the fins on the condenser and

evaporator.

Install the panel and the cover of

control box securely.

• There is risk of fire or electric shock.

4Branch Distributor

Safety Precautions

Do not place anything on the

power cable.

• There is risk of fire or electric shock.

Take care to ensure that power

cable could not be pulled out or

damaged during operation.

• There is risk of fire or electric shock.

Do not place a heater or other

appliances near the power cable.

• There is risk of fire and electric

shock.

Always ground the product.

There is risk of fire or electric shock

Do not install, remove, or re-install

the unit by yourself (customer).

• There is risk of fire, electric shock,

explosion, or injury.

Do not allow water to run into

electric parts.

• It may cause there is risk of fire,

failure of the product, or electric

shock.

For installation, always contact the

dealer or an Authorized Service

Center.

• There is risk of fire, electric shock,

explosion, or injury

Do not modify or extend the power

cable.

• There is risk of fire or electric shock.

Do not install the product on a

defective installation stand.

• It may cause injury, accident, or

damage to the product.

Installation Manual 5

ENGLISH

CAUTION

Parts

1. INSTALLATION MANUAL

2. HANGER METAL

3. SCREWS

4. INSULATION PE

1 pc

4 pcs

8 pcs

2 pcs

Items to be prepared in the field

• Connecting wires

(AWG 18-4, AWG 16-4)

• Installation parts

(Hanging bolts: 4 x M10 or M8, Nuts: 12, flat

washers:8)

• Screws for wall-mounting : 6 x M5

• Insulation

• Brass cap

• Aluminum tape

If strange sound, or smell or smoke comes from

product.

• Turn the breaker off or disconnect the power supply

cable. There is risk of electric shock or fire

Do not let the air conditioner run for a long time when

the humidity is very high and a door or a window is

left open.

• Moisture may condense and wet or damage furniture.

Keep level even when installing

the product.

• To avoid vibration or water leakage.

Always check for gas (refrigerant)

leakage after installation or repair

of product.

• Low refrigerant levels may cause

failure of product.

Do not step on or put anyting on

the product. (outdoor units)

• There is risk of personal injury and

failure of product.

sj"

Safety Precautions

6Branch Distributor

Parts

PRECAUTIONS FOR SELECTING THE LOCATION

The BD unit is for indoor use. Install in a location such as above a ceiling or behind a wall in

accordance with the following conditions:

• That the unit is fully supported, and is in a location with little or no vibration.

• That the refrigerant pipes for the indoor and outdoor units can be repaired with ease, and that

the units are placed well within the distance from each other allowed by the pipe length.

• That there is nothing nearby that produces heat or steam(gas).

• When installing, that there is enough carity for servicing the unit.

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

• A well-ventilated area.

• Do not install near bedrooms. The sound of refrigerant flowing through the piping may

sometimes be audible. For restrictions on installation, refer to "INSTALLATION".

System Layout

For installation of the indoor units. Follow the instructions in the installation manual for each unit.

Do not connect more than 8 indoor units together choose the distributor unit type

(2rooms,3rooms or 4rooms) according to the installation pattern

Distributor Unit

ABranch Pipe

Main Pipe

Distributor

R410A

4D4PBB

Rooms

Refrigerant

Installation Manual 7

ENGLISH

Installation

• This unit may be installed suspended from the ceiling or mounted on the wall.

• This unit may only be installed horizontally , as shown in the diagram below.(Side B is facing up)

However, it may be freely installed in any direction forward or back, and to the sides.

• Be sure to leave a 2ft square opening for service and inspection as shown in the diagram below,

for both ceiling - suspended installation and wall-mounted installation.

• This unit "does not require drain treatment" as it uses internal foam treatment as low-pressure

piping insulation.

• Service direction is the side B and C

• The piping for the indoor unit may be led around in direction A

• The inclination of side B must be within ±5 degrees forward or back or to the sides.

Min 15 3/4

Min 1 3/16

Min 3 15/16

Min 15 3/4

Branch Pipe

6 5/16

Cover Control

Main Pipe

(Servicing space)

Inspection opening

Min 11 13/16 Min 11 13/16

11 23/32

9 27/32

Ø3/4

Ø3/8

Suspension bolt pitch.

9 21/32

13 9/32

Unit : inch

Installation

8Branch Distributor

Installation of The Main Unit

• This unit has two different installation types:

(1) Ceiling-suspended type and (2) wall-mounted type.

• Choose the proper installation pattern according to the

location of installation.

• The installation location for printed wiring board can be

changed.

Follow the procedure specified in the "CONNECTING

THE WIRING" section to change the location.

NOTICE

(1) Ceiling-suspended type

(2) Wall-mounted type

Screws(M5)

(locally procude)

Screws(M5)

(locally procude)

BD unit

Six-sided Nut

(M10 or M8)

Six-sided Nut

(M10 or M8)

Hanger metal

Flat washer

Hanging bolt

(M10 or M8)

15.0(19/32)

Unit : mm(inch)

Procedure

(1) Fix the fumished hanger metal with two screws.(4 locations in

total).

(2) Using an insert-hole-in- anchor, hang the hanging bolt.

(3) Install a hexagon nut and a flat washer (locally-procured)to

the hanging bolt as shown in the figure in the left, and ift the

main unit to hang on the hanger metal.

(4) After checking with a level that the unit is level, tighten the

hexagon nut.

* The tilt of the unit should be within ±5° in front/back and

left/right.

Procedure

(1) Fix the fumished hanger metal with two screws.

(3 locations in total).

(2) After checking with a level that the unit is level, fix the

unit with the furnished wood screws.

* The tilt of the unit should be within ±5° in front/back and

left/right.

* Block up the parts of hanger holes (2 places) by using

insulation PE after installing the hanger.

CAUTIONS

• Once a screw-hole on the main unit has had a screw hammered in, make sure to either hammer it again

or cover it with alumium tape.(This is to prevent condensation)

• Be sure to install the unit with the ceiling-sie up.

• Do not install near bedrooms. the sound of refrigerant flowing through the piping may sometimes be

audible.

(1) Ceiling-suspended type (2) Wall-mounted type

Installation Manual 9

ENGLISH

Connection of Piping

• When connecting indoor units, make sure to connect refrigerant pipes and connection wires to the appropriate

connection ports maked with matching alphabets. (A, B, C, D)

• Be sure to mark all the local refrigerant piping(liquid

pipes, gas pipes, etc.) for each indoor unit designating

clearly which room it belongs in.(A, B, C, D)

NOTICE

For flaring work the piping, follow the instructions in the installation manual to each unit.

NOTICE

Connecting the pipings to the indoor

unit and drain hose to drain pipe

1. Align the center of the pipings and sufficiently

tighten the flare nut by hand.

2. Tighten the flare nut with a wrench.

Wrap the insulation material around

the connecting portion.

1. Overlap the connection pipe insulation

material and the indoor unit pipe insulation

material. Bind them together with vinyl tape

so that there is no gap.

2. Wrap the area which accommodates the rear

piping housing section with vinyl tape.

Close up a socket for unoccupied

room with a brass cap.

1. Align the center of the piping and sufficiently

tighten the brass cap by hand.

2. Tighten the brass cap with a wrench.

3. Wrap the joint part with insulation.

BD Unit Socket Flare nut Pipes

Wrench

BD Unit Socket

Open-end wrench (fixed)

Connection pipe

Flare nut

Vinyl tape(narrow)

BD Unit

Connecting cable

Vinyl tape (wide) Wrap with vinyl tape

Indoor unit pipe

Pipe

BD Unit Socket Pipe sealed

or welded

Brass cap

DCBA

CAUTIONS

• Never use the plastic cap for sealing.

• Make sure to use brass cap with the end of

pipe sealed or welded tightly.

Connection of Piping

Outside diameter Torque

mm inch N. m kgf.m lbf.ft

Ø6.35 1/4 14~18 1.4~1.8 10~13

Ø9.52 3/8 34~42 3.5~4.3 25~31

Ø12.7 1/2 49~61 5.0~6.2 36~45

Ø15.88 5/8 69~82 7.0~8.4 51~60

Ø19.05 3/4 100~120 10.0~12.2 73~88

10 Branch Distributor

Connection of Wiring

• Connect refrigerant pipes and connection wires to the appropriate ports maked with matching

alphabets (A, B and C) on this unit.

• Follow the instructions on the wiring nameplate to connect the connection wires of indoor/outdoor

units to terminal board numbers.(1, 2 and 3) Always fix each ground wire separately with a ground

screw.(See the figure below.)

• After completing the wiring, fix the outer coating of wires securely with wire clamps. The wire

clamp on indoor unit side is furnished. Follow the procedure below to install.

• Refer to the circuit diagram on the control cover inside outdoor unit.

The terminal board numbers are arranged from top to bottom in order of 1, 2 and 3.

NOTICE

Table of contents

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