Daikin RXS18DVJU Installation Manual download pdf

Accessories supplied with the outdoor unit:

Accessories

(A) Installation manual

3P141697-3C M04B020A

(B) Drain plug (Heat pump-Models)

Located on the bottom of the packing case.

DAIKIN AIR CONDITIONER

Precautions on Installation

Precautions for Selecting the Location

1) Choose a place strong enough to bear the weight and vibration of the unit, The location should not amplified the

unit noise.

2) Choose a location where the hot air discharged from the unit and the operationing noise will not be a nuisance

to the neighbors.

3) Avoid noise sensitive locations such as bedrooms to avoid future problems.

4) There must be sufficient clearance for carrying the unit into and out of the site.

5) There must be sufficient space around the air inlet and the air outlet with no obstructions to airflow.

6) The surrounding area must be free from the possibility of flammable gas leakage.

7) Install units, power cords and inter-connecting cables at least 10 feet away from television and radio sets. This

is to prevent interference to images and sounds. (Noises may be heard even if they are more than 10 feet away

depending on radio wave conditions.)

8) In coastal areas or other places with salty atmosphere of sulfate gas, corrosion may shorten the life of the air

conditioner.

9) Do not place moisture sensitive equipment or articles under the outdoor unit condenstate drain.

NOTE

Do not install unit by hanging from a ceiling or stacking units.

When operating the air conditioner in a outdoor temperature below,

be sure to follow the instructions described below.

1) To prevent exposure to wind, install the outdoor unit with its

suction side facing the wall.

2) Never install the outdoor unit at a site where the suction side

may be exposed directly to wind.

3) To prevent exposure to wind, it is recommended to install a baffle

plate on the air discharge side of the outdoor unit.

4) In heavy snowfall areas, select an installation site where the snow

will not affect the unit.

• Ensure the strength and level of the installation will not cause any operating vibration or noise after installed.

• In accordance with the foundation drawing, fix the unit securely by means of the foundation bolts. (Prepare four

sets of 3/8” or 7/16” foundation bolts, nuts and washers each which are available on the market.)

• It is best to screw in the foundation bolts until their length are 3/4” from the foundation surface.

Construct a large canopy.

Construct a pedestal.

Install the unit high enough off the

ground to prevent burying in snow.

Caution

3/4”

Safety Precautions

• Read these Safety Precautions carefully to ensure correct installation.

•

This manual classifies the precautions into WARNINGS and CAUTIONS. Be sure to follow all the precautions below: they are all important for ensuring safety.

WARNINGS

CAUTIONS

WARNINGS

CAUTIONS

Failure to follow any of WARNING is likely to result in such grave consequences as death or serious injury.

Failure to follow any of CAUTION may in some cases result in grave consequences.

• The following safety symbols are used throughout this manual:

Be sure to observe this instruction.

Be sure to establish a proper

earth grounding connection.

Never attempt.

•

After completing installation, test the unit to check for installation errors. Give the user adequate instructions concerning the use and cleaning of the unit according to the Operation Manual.

•

Installation should be left to the authorized dealer or another trained professional. Improper installation may cause water leakage, electrical shock, fire, or equipment damage.

•

Install the air conditioner according to the instructions given in this manual. Incomplete installation may cause water leakage, electrical shock, fire or equipment damage.

•

Be sure to use the supplied or exact specified installation parts. Use of other parts may cause the unit to come to lose, water leakage, electrical shock, fire or equipment damage.

• Install the air conditioner on a solid base that is level and can support the unit's weight.

An inadequate base or incomplete installation may cause injury or equipment damage in the event the unit falls off the base or comes loose.

•

Electrical work should be carried out in accordance with the installation manual and the national, state and local electrical wiring codes.

Insufficient capacity or incomplete electrical work may cause electrical shock, fire or equipment damage.

•

Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance. Follow all appropriate electrical codes.

•

Use the specified types of wires for electrical connections between the indoor and outdoor units. Follow all state and local electrical codes.

Firmly clamp the interconnecting wires so their terminals receive no external stresses. Incomplete connections or clamping may cause terminal overheating, fire or euipment damage.

• After all installation is complete, check to make sure that no refrigerant is leaking.

(The refrigerant produces a toxic gas if exposed to flames.)

• Do not install the air conditioner where gas leakage would be exposed to open flames.

If the gas leaks and builds up around the unit, it may catch fire.

• Establish drain piping according to the instructions of this manual. Inadequate piping may cause water damage.

•

Tighten the flare nut according to the specified torque. A torque wrench should be used. If the flare nut is tightened too much, the flare nut may crack over time and cause refrigerant leakage.

•

Be very careful about product transportation. Some products use PP bands for packaging. Do not use any PP bands for a means of transportation. It is dangerous.

• Never perform outdoor unit piping connection work when it is raining.

•

Note for installing the outdoor unit. (For heat pump model only.) In regions of the country where the outside temperature is at or

below the freezing point, the drain may freeze. If so, it is recommended that an electric heater be installed in order to protect the drain from freezing.

•

After connecting all wiring be sure to shape the cables so that they do not put undue stress on the electrical covers, panels or terminals.

Install covers over the wires. Incomplete cover installation may cause terminal overheating, electrical shock,fire or equipment damage.

•

When installing or relocating the system, be sure to keep the refrigerant circuit free from all substances other than the specified refrigerant (R410A), such as air.

(Any presence of air or other foreign substance in the refrigerant circuit causes an abnormal pressure rise which may result in rupture, resulting in injury.)

• If any refrigerant has leaked out during the installation work, ventilate the room.

(The refrigerant produces a toxic gas if exposed to flames.)

• Be sure to establish a ground. Do not ground the unit to a utility pipe, arrester, or telephone ground.

Incomplete or inadequate grounding may cause equipment damage, or electrical shock and personal injury. A high surge current from lightning or other sources may cause damage to the air conditioner.

•

Securely install the outdoor unit terminal cover (panel). If the terminal cover (panel) is not installed properly, dust or water may enter the outdoor unit and fire or electric shock may reslt.

• Install an leak circuit breaker, as required. If an leak circuit breaker is not installed, electric shock may result.

•

Be sure to install a ground fault circuit interrupter breaker. Failure to install a ground fault circuit interrupter breaker may result in electrically shocks or personal injury.

•

During pump-down, stop the compressor before removing the refrigerant piping. If the compressor is still running and the shut-off valve is open during

pump-down, air will be sucked in when the refrigerant piping is removed, causing abnormally high pressure which could lead to equipment damage or and personal injury.

• During installation, attach the refrigerant piping securely before running the compressor.

If the compressor is not attached and the shut-off valve is open during pump-down, air will be sucked in when the compressor is run, causing

abnormally high pressure whichcould lead to equipment damage and personal injury.

•

For wiring, use a wire or cable long enough to cover the entire distance with no splices if possible. Do not use an extension cord. Do not put other

loads on the power supply.Use a only a separate dedicated power circuit. (Failure to do so may cause abnormal heat, electric shock,fire or equipment damage.)

• Where a wall or other obstacle is in the path of outdoor unit’s intake or exhaust airflow, follow the installation

guidelines below.

• For any of the below installation patterns, the wall height on the exhaust side should be 4 ft or less.

Outdoor Unit InstallationOutdoor Unit Installation Drawings

Installation Guidelines

More than 1 15/16 More than 3 15/16

Side view

47 3/16

or less

Wall facing one side

Top view

More than 1 15/16 More than 1 15/16

than 3 15/16

Walls facing two sides

More than 5 7/8

Unit: in

Top view

More than 5 7/8

More than 11 13/16

More than 1 15/16

Walls facing three sides

Wrap the insulation pipe with

the finishing tape from bottom

to top.

In sites with poor drainage, use

block bases for outdoor unit.

Adjust foot height until the unit

is leveled. Otherwise, water

leakage or pooling of water may

occur.

22 9/16

(Foot bolt-hole centres)

(From unit's side)

4 1/8

Where there is a danger of the unit

falling, use foot bolts, or wires.

Foot bolt-hole

centres

12 1/4

Allow space for piping

and electrical servicing.

250 mm from wall

unit: in

How to remove the service lid.

Remove the screw on the

service lid.

Slide the lid downward

to remove it.

How to attach the service lid.

Insert the upper part of

the service lid into the

outdoor unit to install.

Tighten the screws.

Service lid

Model 09 / 12 class

O.D. 3/8”

Gas pipe

Liquid pipe

O.D. 1/4”

0.22 oz/ft

49 ft

65 ftMax. allowable length

Max. allowable height

Additionl refrigerant

required for refrigerant

pipe exceeding

33 ft in length.

Be sure to add the proper amount of additional refrigerant.

Failure to do so may result in reduced perfomance.

1. Installing Outdoor Unit

1) When installing the outdoor unit, refer to “Precautions for Selecting the Location” and the “Outdoor Unit

Installation Drawings.”

2) If drain work is necessary, follow the procedures below.

2. Drain Work (Heat pump-Models)

1) Use drain plug for drainage.

2) If the drain port is covered by a mounting base or floor surface, place additional

foot bases of at least 1 1/4” in height under the outdoor unit’s feet.

3) In cold areas, do not use a drain hose with the outdoor unit.

(Otherwise, drain water may freeze, impairing heating performance.)

Drain-water hole

Bottom frame

Drain plug

Hose (available commercially,

inner dia. 16mm)

Coat here with refrigeration machine oil

Torque wrench

Piping union

Flare nut

Spanner

3. Flaring the Pipe End

1) Cut the pipe end with a pipe cutter.

2) Remove burrs with the cut surface facing

downward so that the chips do not enter the pipe.

3) Put the flare nut on the pipe.

4) Flare the pipe.

5) Check that the flaring is properly made.

(Cut exactly at

right angles.) Remove burrs

Set exactly at the position shown below.

Flaring

Die

A 0 ~ 0.020”

Clutch-type

Flare tool for R410A

0.039 ~ 0.059”

Clutch-type (Rigid-type)

0.059 ~ 0.079”

Wing-nut type (Imperial-type)

Conventional flare tool

Check

Flare’s inner

surface must

be flaw-free.

The pipe end must

be evenly flared in

a perfect circle.

Make sure that the

flare nut is fitted.

Flare nut tightening torque

Gas side Liquid side

3/8 inch 1/4 inch

24.1~29.4ft • Ibf 10.4~12.7ft • Ibf

Valve cap tightening torque

Gas side Liquid side

3/8 inch 1/4 inch

15.9~20.2ft • Ibf 15.9~20.2ft • Ibf

Service port cap

7.9~10.8ft • Ibf

tightening torque

4. Refrigerant Piping

1) Align the centers of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with

the torque wrenches.

•

Use torque wrenches when tightening the flare nuts to prevent damage to the flare nuts and escaping gas.

2) To prevent gas leakage, apply refrigeration machine oil on both inner and outer surfaces of the flare. (Use

refrigeration oil for R410A)

1) Do not use mineral oil on flared part.

2) Prevent mineral oil from getting into the system as this would reduce the unit life.

Never use piping which has been used for previous installations. Only use parts which are provided with the unit.

4) Do never install a refrigerant drier to this unit.

5) The drying material may dissolve and damage the system.

6) Incomplete or improper flaring may cause refrigerant gas leakage.

Warning

• If adding additional refrigerant, perform air purging from the

refrigerant pipes and indoor unit using a vacuum pump before

charging additional refrigerant.

• Use a hexagonal wrench (3/16”) to operate the shut-off valve rod.

• All refrigerant pipe joints should be tightened with a torque wrench to

the specified tightening torque.

5. Purging Air and Checking for Gas Leakage

• When the piping work is completed, it is necessary to purge the air and check for gas leakage.

1) Do not place any substance other than the specified refrigerant (R410A) into the refrigeration cycle.

2) When a refrigerant gas leak occurs, ventilate the room as soon and as much as possible.

R410A, as well as other refrigerants, should always be recovered and never be released directly into the environment.

4) Use a vacuum pump for R410A exclusively. Using the same vacuum pump for different refrigerants may

damage the vacuum pump or the unit.

Warning

3) Do vacuum pumping and make sure that the vacuum pressure gauge reads – 29.9 inHg *1.

4) Close gauge manifold's low-pressure valve (Lo) and stop vacuum pump.

(Keep this state for a few minutes to make sure that the vacuum pressure gauge pointer does not swing back.)

Outdoor Unit Installation

1) Connect projection side (on which worm pin is pressed) of charging hose (which comes from gauge manifold) to gas

shut-off valve’s service port.

2) Fully open gauge manifold’s low-pressure valve (Lo) and completely close its high-pressure valve (Hi).

(High-pressure valve subsequently requires no operation.)

5) Remove covers from liquid shut-off value and gas shut-off valve.

6) Turn the liquid shut-off valve’s rod 90 degrees counterclockwise with a hexagonal wrench to open valve.

Close it after 5 seconds, and check for gas leakage.

Using soapy water, check for gas leakage from indoor unit’s flare and outdoor unit’s flare and valve rods.

After the check is complete, wipe all soapy water off.

7) Disconnect charging hose from gas shut-off valve’s service port, then fully open liquid and gas shut-off valves.

(Do not attempt to turn valve rod beyond its stop.)

Tighten valve lids and service port caps for the liquid and gas shut-off valves with a torque wrench at the specified torques.

Pump Down Operation

In order to protect the environment, be sure to pump down

when relocating or disposing of the unit.

Remove the valve lid from liquid shut-off valve and gas shut-off valve.

2) Carry out forced cooling operation.

3) After five to ten minutes, close the liquid shut-off valve with a hexagonal wrench.

After two to three minutes, close the gas shut-off valve and stop forced cooling operation.

How to force cooling operation mode

Using the indoor unit operation/stop button

Press the indoor unit operation/stop button for at least five seconds. (Operation will start.)

• Forced cooling operation will stop automatically after around 15 minutes.

To force a test run to stop, press the indoor unit operation/stop button.

Using the main unit’s remote control

1) Press the “operation/stop” button. (Operation will start.)

2) Press the temperature button and the “operation select” button at the same time.

3) Press the “operation select” button twice. ( will be displayed and the unit will enter test run mode.)

4) Press the “operation select” button to return the operation mode to cooling.

•

Test run mode will stop automatically after around 30 minutes. To force a test run to stop, press the operation/stop button.

Compound

pressure gauge

Pressure

meter

High-

pressure

valve

Low-pressure

valve

Vacuum pump

Service port

Liquid

shut-off

valve

Valve lids

Gas shut-off valve

Charging

hoses

Gauge

manifold

Gas shut-off

valve

Valve lid

Hexagonal

wrench

Liquid shut-off valve

7. Refrigerant Piping Work

7-1 Cautions on Pipe Handling

Protect the open end of the pipe against dust and moisture.

All pipe bends should be as gentle as possible. Use a pipe bender for bending.

(Bending radius should be 1 1/4” to 1 5/8” mm or larger.)

7-2 Selection of Copper and Heat Insulation materials

When using commercial copper pipes and fittings, observe the following:

1) Insulation material: Polyethylene foam

Heat transfer rate: 0.041 to 0.052 kW/mK (0.024-0.030 Btu/fth˚F)

Refrigerant gas pipe’s surface temperature reaches 230˚F max.

Choose heat insulation materials that will withstand this temperature.

Be sure to insulate both the gas and liquid piping and to provide insulation dimensions as below.

3) Use separate thermal insulation pipes for gas and liquid refrigerant pipes.

• Be sure to use the R410A tools to ensure pressure and to prevent foreign objects entering.

Wall

If no flare cap is

available, cover

the flare mouth

with tape to keep

dirt or water out.

Be sure to

place a cap.

Rain

Gas pipe

Liquid pipe

Gas pipe

insulation

Liquid pipe

insulation

Finishing tape

Drain hose

Inter-unit wiring

Gas side

Liquid side

Gas pipe thermal insulation

Liquid pipe

thermal insulation

O.D. 3/8 in

Thickness 0.031 in

I.D. 0.472-0.590 in I.D. 0.315-0.393 in

Thickness 0.393 in Min.

09/12 class 09/12 class

O.D. 1/4 in

Filling a cylinder with an attached siphon

Stand the cylinder upright when filling.

There is a siphon pipe inside, so the cylinder

need not be upside-down to fill with liquid.

Filling other cylinders

Turn the cylinder upside-down

when filling.

6. Refilling The Refrigerant

Check the type of refrigerant to be used on the machine nameplate.

Precautions when adding R410A

Fill from the liquid pipe in liquid form.

It is a mixture of refrigerant, so adding it in gas form may cause the refrigerant composition to change, preventing normal operation.

Before filling, check whether the cylinder has a siphon attached or not. (It should have something like “liquid filling siphon attached” displayed on it.)

After closing the liquid shut-off valve, close the gas shut-off valve within three minutes, then stop the forced operation.

Caution

*1. Pipe length vs. vacuum pump run time

*2. If the vacuum pressure gauge pointer swings back, refrigerant may have water content or a loose pipe joint

may exists. Check all pipe joints and retighten nuts as needed, then repeat steps 2) through 4).

Pipe length Up to 50 feet More than 50 feet

Run time Not less than 10 min. Not less than 15 min.

Run Test and Final Check

1. Trial Operation and Testing.

1-1 Measure the supply voltage and make sure that it falls in the specified range.

1-2 Trial operation should be carried out in eitr cooling or heating mode.

•

In cooling mode, select the lowest programmable temperature; in heating mode, select the highest

programmable temperature.

1) Trial operation may be disabled in either mode depending on the room temperature.

2) After trial operation is complete, set the temperature to a normal level (78˚F to 82˚F in cooling mode, 68˚F to

75˚F in heating mode).

3) For protection, the unit disables restart operation for 3 minutes after it is turned off.

1-3 Carry out the test operation in accordance with the Operation Manual to ensure that all functions and

parts, such as louver movement, are working properly.

•

The air conditioner requires a small amount of power in its standby mode. If the system is not to be used for

some time after installation, shut off the circuit breaker to eliminate unnecessary power consumption.

• If the circuit breaker trips to shut off the power to the air conditioner, the system will restore the original

operation mode when the circuit breaker is opened again.

2. Test Items.

Test Items

Incomplete cooling/heating functionNo refrigerant gas leaks.

Indoor and outdoor units are installed properly on

solid bases.

Refrigerant gas and liquid pipes and indoor drain

hose extension are thermally insulated.

Fall, vibration, noise

Water leakage

Electrical leakage

Indoor unit properly receives remote control

commands.

Inoperative

Indoor or outdoor unit’s air intake or exhaust has

clear path of air.

Shut-off valves are opened.

Incomplete cooling/heating function

The specified wires are used for interconnecting

wire connections.

Inoperative or burn damage

Symptom

(diagnostic display on RC)

Check

Wiring

• Do not turn ON the safety breaker until all work is completed.

Strip the insulation from the wire (3/4 in).

2) Connect the connection wires between the

indoor and outdoor units so that the terminal

numbers match. Tighten the terminal screws

securely. We recommend a flathead screwdriver

be used to tighten the screws.

The screws are packed with the terminal board.

3) Pull the wire and make sure that it is tight. Then fix the wire in place with a strain relief.

Observe the notes mentioned below when wiring to the power

supply terminal board.

Precautions to be taken for power supply wiring.

(Use a round crimp-style terminal for connection to the power

supply terminal board. In case it cannot be used due to

unavoidable reasons, be sure to observe the following instruction.)

When connecting the connection wires to the terminal board using a single core wire, be sure to perform curling.

Problems with the work may cause heat and fires.

Strip wire end

to this point.

Excessive strip length

may cause electrical

shock or leakage.

Good Wrong

Electric Wire

Round crimp-style

terminal

Caution

Stripping wire at terminal block

123

Safety

breaker

15A

Earth leakage

circuit breaker

Earth

When wire length exceeds

10 m, use 2.0-mm wires.

Outdoor unit

Indoor

unit

Power

supply

60Hz 208/230V

L1 L2

1) Do not use spliced wires, stand wires, extension cords, or starbust connections, as they may cause

overheating, electrical shock, or fire. Follow all Local, and State electrical codes.

2) Do not use locally purchased electrical parts inside the product. (Do not overload the circuit by adding drain

pump or other electrical equipment to unit terminals.) Doing so may cause electric shock or fire.

3) Be sure to install an earth leak detector. (One that can handle higher harmonics.)

(This unit uses an inverter, which means that it must be used an earth leak detector capable handling

harmonics in order to prevent malfunctioning of the earth leak detector itself.)

4) When carrying out wiring connection, take care not to pull at the conduit.

Warning

Drain line is properly installed.

System is properly ground to earth.

1 2 3

Power supply

terminal block

Shape wires so

that the service

lid and shut-off

valve cover fit

securely.

Use the specified wire type and

connect it securely.

Conduit

mounting

plate

Conduit

Lock nut

DAIKIN AIR CONDITIONER 1

Summary of Contents

Page 1 - DAIKIN AIR CONDITIONER

Accessories supplied with the outdoor unit:Accessories11(A) Installation manual3P141697-3C M04B020A(B) Drain plug (Heat pump-Models)Located on the bo

Daikin RXS18DVJU Installation Manual

Browse online or download Installation Manual for Heat pumps Daikin RXS18DVJU. Daikin RXS18DVJU Unit installation [en] User Manual

Summary of Contents

More documents for Heat pumps Daikin RXS18DVJU

Comments to this Manuals

Daikin RXS18DVJU Installation Manual

Browse online or download Installation Manual for Heat pumps Daikin RXS18DVJU. Daikin RXS18DVJU Unit installation [en] User Manual

Summary of Contents

More documents for Heat pumps Daikin RXS18DVJU

Comments to this Manuals

Related products and manuals for Heat pumps Daikin RXS18DVJU