York YJU3YH019BARRA-X Installation Manual

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INSTALLATION MANUAL

Inverter Multi-split Outdoor R410A

YJU3-5YH019-034BAR

A-X

Contents

English

Safety Precautions

Accessories

Precautions for Selecting the

Location

Installation drawings of indoor and

outdoor units

Precautions on Installation

Outdoor Unit Installation Guideline

Limitations on the installation

Refrigerant piping work

Pump Down Operation

Wiring work

Test running

Trouble shooting

Safety Precautions

WARNING

CAUTION

WARNING

CAUTION

Read these Safety Precautions carefully to ensure correct installation.

This manual classifies the precautions into

WARNING

and

CAUTION

Be sure to follow all the precautions bellow: they are all important for ensuring safety.

Failure to follow any of

WARING

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 an earth connection

Never attempt

After completing installation, test the unit to check for installation errors. Give the user adequate instructions conceming the use and cleaning

of the unit according to the Operation Manual.

Installation should be left to the dealer or another professional.

Improper installation may cause water leakage, electrical shock, or fire.

Install the air conditioner according to the instructions given in this manual.

Incomplete installation may cause water leakage, electrical shock, or fire.

Be sure to use the suplied or specified installation parts.

Use of other parts may cause the unit to cometo lose, water leakage, electrical shock, or fire.

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

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

Electrical work should be carried out in accordance with the installation manual and the national electrical wiring rules or code of practice.

Insufficient capacity or incomplete electrical work may cause electrical shock or fire.

Be sure to use a dedicated power circuit. Never use a power supply shared by another appliance.
For wiring, use a cable long enough to cover the entire distance with no connection.

Do not use an extension cord. Do not put other loads on the power supply, use a dedicated power circuit.

(Failure to do so may cause abnormal heat, electric shock or fire.)

Use the specified types of wires for electrical connections between the indoor and outdoor units.

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

After connectiong interconnecting and supply wiring be sure to shape the cables so that they do not put undue force on the electrical

covers or panels.

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

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

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

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

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

When installing or relocating the system, be sure to keep the refrigerant circuit free from substancs 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 or rupture, resulting in injury.)

During pump-down, stop the compressor before removing the refrigerant piping.

If the compressor is still running and the stop valve is open during pump-down, air will be sucked in when the rcompressor is run, causing abnormal pressure in the freezer

cycle which will lead to breakage and even injury.

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

In complete earth may cause electrical shock, or fire. A high surge current from lightning or other sources may cause damage to the air conditioner.

Be sure to install an earth leakage breaker.

Failure to install an earth leakage breaker may result in electric shocks, or fire.

Do not install the aire conditioner in a place where there is danger of exposure to inflammable gas leakage.

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 flooding.

Tighten the flare nut according to the specified method such as with a torque wrench.

If the flare nut is tightened too hard, the falre nut may crack after a long time and cause refrigerant leakage.

Make sure to provide for adequate measures in order to prevent that the outdoor unit be used as a shelter by small animals.

Small animals making contact with electrical parts can cause malfunctions, smoke or fire. Please instruct the customer to keep the area around the unit clean.

Accessories

Precautions for Selecting the Location

NOTE:

CAUTION

No.

Quantity

Name of parts

Drainage elbow

Rubber cushion

Clap

Drawing

Note

Adaptor(3/8 1/2)

Adaptor(1/2 3/8)

Construct a large canopy.

Construct a pedestal.

Install the unit high enough off the

ground to prevent burying in snow.

Accessories supplied with the outdoor unit:

1) Choose a place solid enough to bear the weight and vibration of the unit, where the operation noise will not be amplified.

2) Choose a location where the hot aire discharged from the unit or the operation noise, will not cause a nuisance to the neighbors of the

user.

3) Avoid places near a bedroom and the like, so that the operation noise will cause no trouble.

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

5) There must be sufficient space for air passage and no obstructions around the air inlet and the air outlet.

6) The site must be free from the possibility of flammable gas leakage in a nearby place.

Locate the unit so that the noise and the discharged hot air will not annoy the neighbors.

7) Install units, power cords and inter-unit cables at least 3 meter 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 3 meter 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)Since drain flows out of the outdoor unit, do not place under the unit anything which must be kept away from moisture.

Cannot be installed hanging from ceiling or stacked.

When operationg the air conditioner in a low outdoor ambient

temperature, 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.

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Installation drawings of indoor and outdoor units

Connection cautions

model

connection priority between indoor and

stop valve higher from down to up

when there is 1 indoor,the prior stop

valve is
when there are 2 indoors,the prior

stop valves are
when there are 3 indoors,the prior

stop valves are
when there are 4 indoors,the prior

stop valves are
when there are 5 indoors,the prior

stop valves are

Note: For better oil return and more reliable system, please execute as the above when connecting indoor unit.

C B

C B A

D C

D C B

D C B A

E D

E D C

E D C B

E D C B A

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Piping to each indoor unit
Total length of piping between al lunits

Outdoor unit capacity class

50m max.

25m max.

70m max.

25m max.

80m max.

25m max.

Precautions on Installation

Check the strength and level of the installation ground so that the unit will not cause any operating vibration or noise after installed.

In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts.(Prepare four sets of M8 or M10

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 20mm from the foundation surface.

Outdoor Unit Installation Guideline

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 pattems, the wall height on the exhaust side should be 1200mm or less.

Limitations on the installation

2.Selecting a location for installation of the indoor units

The maxinum allowable length of refrigerant piping, and the maxmum allowable height difference between the outdoor and indoor units,

are listed below. (The shorter the refrigerant piping, the better the performance. Connect so that the piping is as short as possible. Shortest

allowable length per room is 3m)

1.Precautions on installation

Check the strength and level of the installation ground so that unit will not cause any operating vibration or noise after installation.

In accordance with the foundation drawing in fix the unit securely by means of the foundation bolts.

It is best to screw in the foundation bolts unit their length are 20 mm from the foundation surface.

More than 50

More than 300

1200 or

less

Side view

Wall facing one side

than 100

than 50

than 300

Side view

Wall facing two sides

More than 150

than 50

More than 300

Side view

Wall facing three sides

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Refrigerant piping work

1. Installing outdoor unit

1) When installing the outdoor unit, refer to "Precautions for Selecting the Location" and the "Indoor/Outdoor Unit Installation Drawings".

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

2. Drain work

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 30mm 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 elbow

Hose

Drain elbow

Hose

Indoor Unit

Outdoor Unit

Level

difference:

15m max.

Level

difference:

7.5m max.

If the outdoor unit is positioned higher than the indoor units.

Outdoor Unit

Indoor Unit

Level

difference:

15m max.

Level

difference:

7.5m max.

If the outdoor unit is positioned higher than the indoor units.

(If lower than one or more indoor units.)

Limitations on the installation

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4. Purging air and checking gas leakage

WARNING

3. Refrigerant piping work

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

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

2) When refrigerant gas leaks occur, ventilate the room as soon and as much as possible.

3) 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 refrigerents may damage the vacuun pump

or the unit.

If using additional refrigerant, perform air purging from the refrigerant pipes and indoor unit using a vacuum pump, then charge additional

refrigerant.

Use a hexagonal wrench (4mm) to operate the stop valve rod.

All refrigerant pipe joints should be tightened with a torque wrench at the specified tightening torque.

Connect projection side of charging hose(Which comes from gauge manifold) to gas stop valve's service port.

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

(High-pressure valve subsequently requires no operation.)

Apply vacuum pumping. Check that the compound pressure gauge reads-0.1MPa(-76cmHg).

Evacuation for at lease 1 hour is recommended.

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

(Leave as is for 4-5 minutes and make sure the coupling meter needie does not go back.

If it does go back, this may indicate the presence of moisture or leaking from connecting parts. After inspecting all the connection and

loosening then retightening thenuts, reqeat steps 2-4. )

Remove covers from liquid stop valve and gas stop valve.

Turn the liquid stop 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.

Disconnect charging hose from gas stop valve's service port, then fully open liquid and gas stop valves.

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

Tighten valve caps and service port caps for the liquid and gas stop valves with a torque wrench at the specified torques. See "3

Refrigerant piping " on page 6 for details.

Refrigerant piping work

2)To prevent gas leakage, apply refrigeration oil on both inner and outer surfaces of the flare. (Use refrigeration oil for R410A)

Torque spanner

Spanner

Pipe joint

Cone nut

10.8-14.7N.m(110-150kgf.cm)

Valve cap tightening torque

Liquid pipe 26.5-32.3N.m(270-330kgf.cm)

Gas pipe 48.1-59.7N.m(490-610kgf.cm)

Service port cap tightening torque

Coat here with refrigeration oil

)

. Align the centres of both flares and tighten the flare nuts 3 or 4 turns by hand. Then tighten them fully with the tor wrenches.

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

Flare nut fightening torque

14.2-17.2N.m(144-175kgf.cm)

32.7-39.9N.m(333-407kgf.cm)
49.5-60.3N.m(505-615kgf.cm)

61.8-75.4N.m(630-769kgf.cm)

Flare nut for 6.35

Flare nut for 9.52
Flare nut for 12.7

Flare nut for 15.88

5. Refilling the refrigerant

6. Charging with refrigerant

Notes:

Gas pipe

Gas pipe insulation

O.D.:9.52mm,12.7mm

Thickness:0.8mm

I.D.:12-15mm,12.7mm

Thickness:13mm min.

Liquid pipe

Liquid pipe insulation

O.D.:6.35mm

Thickness:0.8mm

I.D.:18-10mm

Thickness:10mm min.

7.Precautions for Laying Refrigerant Piping

Cautions on pipe handling

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

2) All pipe bends should be as gentle as possible. Use a pipe bender for bending.(Bending radius should be 30 to 40mm or larger.)

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 0.052W/mK(0.035to 0.045kcal/mh

Refrigerant gas pipe's surface temperature reaches 110

C max.

Choose heat insulation materials that will withstand this temperature.

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

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

Precautions when adding R410A
Fill from the liquid pipe in liquid form.

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

1) Before filling, check whether the cylinder has a siphon attached or not.(It should have something like "liquid filling siphon attached"

displayed on it.)

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

1) This system must use refrigersant R410A.

2) Add refrigerant 20g per meter when the total piping length

exceeds the standard value, but make sure that the total liquid

piping length should be less than the max. value.

1) When using this product, you need not to set the address. But the L/N wires between indoor & outdoor units must be corresponded,

or there will be communication failure.

2) Quiet Operation Setting. Set the DIP "8" to ON position of SW5, the system will run with lower noise, but the max. capacity will also

reduce slightly.

3) Do not change the settings of other switchs, wrong settings can make the system damage or other malfunctions.

Refrigerant piping work

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 filing.

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8.Cutting and Flaring work of piping

Pipe cutting is carried out with a pipe cutter and burs must be

removed.

After inserting the flare nut, flaring work is carried out.

Refrigerant Piping Work

WARNING

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

pipe.

It becomes high

midway.

The end is immersed

in water

It waves.

Less than

5cm

It gap with the ground its

too small.

There is the bad

smell from a ditch.

Please pour water in the drain pan of the indoor unit, and confirm that drainage is carried out serely to outdoor.

In case that the attached drain hose is in a room, please apply heat insulation to it without fail.

9. On drainage

Please install the drain hose so as to be downward slope without fail. Please don't do the drainage as shown below.

Correct

Incorrect

Lean Damage of flare Crack

Partial Too outside

1) Do not use mineral oil on flared part.

2) Prevent mineral oil from getting into the system as this would educe the lifetime of the units.

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

4) Do never install a drier to this R410A unit in order to guarantee its lifetime.

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

6) Incom;ete flaring may cause refrigerant gas leakage.

Cut exactly at right

angles.

Remove burrs

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.

Check

Flare tooling die

Pipe diameter

Size A (mm)

Liquid side

Gas side

6.35mm(1/4")

9.52mm(3/8")

0.8~1.5

1.0~1.5

12.7mm(1/2")

1.0~1.5

Pipe

Be sure to

place a cap.

If no flare cap is

available, cover the

flare mouth with tape

to keep dirt or water

out.

Rain

Wall

Inter unit wiring

Gas pipe

insulation

Finishing tape

Drain hose

Liquid pipe

insulation

Liquid pipe

Flare tooling die

Set exactly at the position shown below.

Flare tool for R410A

Clutch-type

0-0.5mm

Conventional flare tool

Clutch-type(Rigid-type)

1.0-1.5mm

Wing-nuttype(Imperial-type)

1.5-2.0mm

1. Electric wiring

The air conditioner must use special circuit , and wiring by the qualified electrician according to the wiring rules specified in national

standard.

The grounding wire and the neutral wire shall be strictly separated. Connect the neutral wire with grounding wire is incorrect.

The electric leakage breaker must be installed.

All the electric wire must be copper wire.Power supply: 1PH, 220-230V~, 50/60Hz.

The wiring method of power line is Y connection. If the power line is damaged, in order to avoid risk of electric shock, it must be replaced

by the manufacturer or its repair center or other similar qualified person.The connecting cable must be shielded.

Fuse: T3.15A 250VAC T16A 250VAC (Please check with the outdoor unit wiring diagram.)

Please check the circuit diagram about the fuse replaced.

Wiring method of orbicular terminals

For the connection wire with orbicular terminals, its wiring method is as shown in

the right figure: remove the connecting screw, put the screw through the ring on

the end of the wire, then connect to the terminal block and fasten screw.

Wiring method of straight terminals

Crimp connection method for wires without terminals

For the connection wire without orbicular terminals, its wiring method is: loosen

the connection screw, and insert the end of the connection wire completely into

the Terminal block, then fasten the screw.

Slightly pull the wire outwards to confirm it is firmly held.

Note: Power line and communication wire are provided by consumers themselves.

Pump Down Operation

liquid

stop valve

Gas

stop valve

Valve cap

Hexagonal

wernch

In order to protect the environment, be sure to pump down when relocating or disposing of the unit.

1) Remove the valve caps from liquid stop valve and gas stop valve.

2) Carry out forced cooling operation.

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

4) After two to three minutes, close the gas stop vaile and stop forced cooling

operation.

Crimp connection method for connection wire

After connection,the wire must be fastened by wire cover. The wire cover shall press on the protection

coat of the connection wire,as shown in right top figure.

Note:When connecting the wiring,confirm the terminal number of indoor and outdoor units carefully.

Incorrect wiring will damage the controller of air conditioner or the unit can not operate.

3. Wiring method of outdoor unit:

Power line

Remove the repair board of the outdoor unit and loosen the wire cover A,then put the live wire, neutral wire and grounding wire through

the wire cover ,and connect them to terminal block correspon dingly. After connection, fasten wire cover to its previous state.

Communication wire of indoor unit.

Loosen wire cover , put the communication wire through the wire cover B, and connect them to terminal block correspondingly. After

connection, fasten wire cover B to its previous state.

2. Wiring method

Wiring Method for

Ring Terminal Block

Connect the wire with

same diameter to the

two sides of the terminal

Do not connect the

wire with same diameter

to the same side

Do not connect the

wire with different

diameters

Wiring work

Correct Pressing

Wrong Pressing

Terminal

block

Pressing

Clamps

Wiring diagram please refers to

Loosen wire cover and connect the power line and communication wire of indoor unit to the terminal correspondingly.

Note:

When connecting power line to power supply terminal, please pay attention to the following items:

Do not connect the power line with different dimensions to the same connection wire end.

Improper contact will cause heat generation.

Do not connect the power line with different dimensions to the same grounding wire end.

Improper contact will affect protection.

Do not connect the power line to the connecting end of communication wire.

Incorrect connection will cause damage to the connected unit.

4. Wiring method of indoor unit

Wiring work

Valve cover

–¨

25.40

Terminal block

Wire cover A

Wire cover B

Wire cover C

Wire cover A

Wire cover B

Wire cover C

Wire cover D

Wire cover E

Terminal block

Valve cover

5. Example wiring diagram.

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Switch on all the 4 dip-switches on the outdoor unit small service PC-board as shown on the right. Then power

off the unit and power on again, the system will enter the operation of "Wiring Error Check". After 3 minutes

stand-by, the unit starts for automatic wiring checking.

Approximately 30 ~ 50minutes (depends on how many units installed in the system) after the unit starts, the

Errors of the wiring will be shown by the LEDs (1 to 5).

Before starting the test running, please confirm the following works have been done successfully.

1) Correct piping work;

2) Correct wiring work;

3) Correct match of indoor and outdoor unit;

4) Proper recharge of refrigerant if needed.

Make sure that all the stop valves are fully open.

Check the voltage supplied to the outdoor and indoor units, please cinfirm that is 230V.

Test running

Test running.

1) If the temperature is lower than 16

C, it is impossible to test cooling with remote controller, and also when the temperature is higher than

C, it is impossible to test heating.

2) To test cooling, set the lowest temperature at 16

C. To test heating,set the highest temperature, at 30

3) Please check both cooling and heating operation of each unit individually and then also check the simultaneous operation of all indoor

units.

4) After ruuning the unit for about 20 minutes, check the indoor unit outlet temperature.

5) After the unit is stopped, or working mode changed, the system will not start again for about 3 minutes.

6) During cooling operation, frost may ocur on the indoor unit or pipes, this is normal.

7) Operate the unit according to the operation manual. Please kindly explain to our customers how to operate through the instruction manual.

CN2

CN3

CN1

CN4

SW1

Seven-segment numeric display

1) When unit is runing, this seven-segment numeric will display the frequency of compressor. For

example, means compressor running frequency is 40 Hz, means compressor running

frequency is 108Hz.

2) When faulty happens, seven-segment numeric will flash and display some numbers, this number is

failure code. For example, a flashing means No.32 failure, that is indoor and outdoor communication

error.

Communication LED

5 green LED means 5 indoor units. If one LED keep lighting that means the corresponding indoor unit has good communication with outdoor

unit. If one LED is not lighting, that means there is no communication between indoor and outdoor.

Wiring Error Check

This product is capable of automatic checking of wiring error.

CN2

CN3

CN1

CN4

SW1

During this operation, the digital-number will alternately show the compressor working frequency (e.g. 50 stands for the current running

frequency) and letter "CH"(means checking).

After this operation, if all the wiring is correct, the digital-number will show "0", if there has wrong wiring, the digital-number will show "EC"(error

connection) and also it will flashing.

The service monitor LEDs indicate the error of wiring, as shown in the table below. For details about how to read the LED display, refer to

the service manual.

If self-checking is not possible, check the indoor unit wiring and piping in the usual manner.

Status

Only one LED flashing

Trouble shooting

Malfunction

Code

Diagnosis

Malfunction Code

Faulty of outdoor unit EEPROM Communication failure

between Module and ECU

Faulty of outdoor unit EEPROM

Communication cables broken or not well connected.IPM

overcurrent or short circuit

IPM on the module overcurrent,or short circuit

Communication failure between Module and ECU

Communication cables broken or not well connected.

Communication cables broken,or not be well connected,or faulty main

ECU,or faulty module

Module operated overload

Module worked overload

Module low or high DC voltage (under 192V or above

375V)

VDC

£…

192V or VDC

375V

Discharging temperature overheating.Lack of refrigerant,

ambient temperature too high or PMVs blocked.

Discharging temperature overheating.Lack of refrigerant,ambient

temperature too high or PMVs blocked.

Malfunction of the DC fan motor

Fan is blocked,or the terminal is disconnected from the ECU

Malfunction of defrosting temp. sensor(Te)

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of compressor suction temp. sensor (Ts)

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of ambient temp. sensor(Ta)

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of compressor discharge temp. sensor (Td)

Sensor disconnected,or broken,or at wrong position or short circuit

Communication failure between indoor&outdoor unit

Wrong connection,or the wires be disconnected,or faulty ECU,or faulty

power supply

4-way valve switching failure

Coil of 4-way valve is disconnected,or faulty outdoor ECU

Module overcurrent / Module switch failure

Module switch failure,or faulty module

Indoor overload

Indoor frosted

Module temperature too high (Overload Protecter)

Module temperature too high,or the temperature sensor broken(detected

by the ECU)

Compressor overcurrent

Over current of the compressor,or malfunction of the module

Input overcurrent

Over current of the system,or malfunction with indoor or outdoor fan

motors,or faulty ECU

MCU reset

MCU on the ECU reset

Module current detect circuit malfunction

Current detect circuit broken,or faulty module

Malfunction of liquid pipe temp. sensor for indoor unit A

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of liquid pipe temp. sensor for indoor unit B

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of liquid pipe temp. sensor for indoor unit C

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of liquid pipe temp. sensor for indoor unit D

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of gas pipe temp. sensor for indoor unit A

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of gas pipe temp. sensor for indoor unit B

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of gas pipe temp. sensor for indoor unit C

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of gas pipe temp. sensor for indoor unit D

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of gas pipe temp. sensor for indoor unit E

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of module temp.sensor

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of condensing temp. sensor(TC)

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of liquid pipe temp. sensor for indoor unit E

Sensor disconnected,or broken,or at wrong position or short circuit

Malfunction of piping temp. sensor(TOCI)

Sensor disconnected,or broken,or at wrong position or short circuit

System high pressure switch off

High pressure switch is disconnected,or high pressure switch is broken,or

high pressure switch worked

System low pressure switch off

Low pressure switch is disconnected,or low pressure switch is broken,or

lo w pressure switch wo rked

System high pressure protection.Refrigerant

overabundance,High condensing temp. or malfunction of

fan motor.

Tc too high and faulty outdoor fan motors when cooling,or faulty indoor

fan motor when heating,or refrigerant overabundance.

System low pressure protection.Refrigerant shortage,Low

defrosting temp., or malfunction of fan motor.

Te too low and faulty outdoor fan motors when heating,or faulty indoor

fan motor when cooling,or refrigerant shortage.

Malfunction of module temp.sensor

Sensor disconnected,or broken,or at wrong position or short circuit

www.johnsoncontrols.co m

MJUMYHAR

130105

2013

Johnson Controls, Inc.

Johnson Controls reserve the right to change product features without prior notice.

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