Mitsubishi electric Puz-zm100vka User manual

SPLIT-TYPE, HEAT PUMP AIR CONDITIONERS

SERVICE MANUAL R32

Outdoor unit

[Model Name]

PUZ-ZM100VKA

PUZ-ZM125VKA

PUZ-ZM140VKA

PUZ-ZM100YKA

PUZ-ZM125YKA

PUZ-ZM140YKA

[Service Ref.]

PUZ-ZM100VKA.UK

PUZ-ZM125VKA.UK

PUZ-ZM140VKA.UK

PUZ-ZM100YKA.UK

PUZ-ZM125YKA.UK

PUZ-ZM140YKA.UK

PARTS CATALOG (OCB654)

CONTENTS

1. REFERENCE MANUAL····························2

2. SAFETY PRECAUTION····························2

3. FEATURES ·········································· 12

4. SPECIFICATIONS ································· 13

5. DATA ·················································· 14

6. OUTLINES AND DIMENSIONS················ 17

7. WIRING DIAGRAM································ 18

8. WIRING SPECIFICATIONS····················· 20

REFRIGERANT SYSTEM DIAGRAM

··········· 25

10. TROUBLESHOOTING···························· 27

11. FUNCTION SETTING ····························· 84

12.

MONITORING THE OPERATION DATA BY THE REMOTE CONTROLLER

···92

13. EASY MAINTENANCE FUNCTION··········101

14. DISASSEMBLY PROCEDURE················104

Note:

•This manual describes service

data of the outdoor units only.

No. OCH654

April 2017

2-1. ALWAYS OBSERVE FOR SAFETY

Before obtaining access to terminal, all supply circuits must be disconnected.

INDOOR UNIT SERVICE MANUAL

Model Name Service Ref. Service

Manual No.

PLA-ZM35/50/60/71/100/125/140EA PLA-ZM35/50/60/71/100/125/140EA.UK OCH650

OCB650

PKA-M35/50HA

PKA-M35/50HAL PKA-M35/50HA

PKA-M35/50HAL OCH660

OCB660

PKA-M60/71/100KA

PKA-M60/71/100KAL PKA-M60/71/100KA.TH

PKA-M60/71/100KAL.TH OCH661

OCB661

PCA-M35/50/60/71/100/125/140KA PCA-M35/50/60/71/100/125/140KA OCH659

OCB659

PEAD-M35/50/60/71/100/125/140JA

PEAD-M35/50/60/71/100/125/140JAL PEAD-M35/50/60/71/100/125/140JA.UK

PEAD-M35/50/60/71/100/125/140JAL.UK ―

2SAFETY PRECAUTION

2-2. CAUTIONS RELATED TO NEW REFRIGERANT

Cautions for units utilizing refrigerant R32

Preparation before the repair service.

• Prepare the proper tools.

• Prepare the proper protectors.

• Provide adequate ventilation.

• After stopping the operation of the air conditioner, turn off

the power-supply breaker.

• Discharge the condenser before the work involving the

electric parts.

Precautions during the repair service.

• Do not perform the work involving the electric parts

with wet hands.

• Do not pour water into the electric parts.

• Do not touch the refrigerant.

• Do not touch the hot or cold areas in the refrigerating cycle.

• When the repair or the inspection of the circuit needs to be

done without turning off the power, exercise great caution

not to touch the live parts.

1REFERENCE MANUAL

MEANINGS OF SYMBOLS DISPLAYED ON THE UNIT

WARNING This mark is for R32 refrigerant only. Refrigerant type is written on nameplate of outdoor unit.

Read the OPERATION MANUAL carefully before operation.

Service personnel are required to carefully read the OPERATION MANUAL and INSTALLATION MANUAL before operation.

Further information is available in the OPERATION MANUAL, INSTALLATION MANUAL, and the like.

OCH654

Make sure that the inside and outside of refrige-

rant piping is clean and it has no contaminants

such as sulfur, oxides, dirt, shaving particles, etc,

which are hazard to refrigerant cycle.

In addition, use pipes with specified thickness.

Contamination inside refrigerant piping can cause deterio-

ration of refrigerant oil, etc.

Store the piping indoors, and both ends of the

piping sealed until just before brazing.

(Leave elbow joints, etc. in their packaging.)

If dirt, dust or moisture enters into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

The refrigerant oil applied to flare and flange

connections must be ester oil, ether oil or

alkylbenzene oil in a small amount.

If large amount of mineral oil enters, that can cause deterio-

ration of refrigerant oil, etc.

Use a vacuum pump with a reverse flow check

valve.

Vacuum pump oil may flow back into refrigerant cycle and

that can cause deterioration of refrigerant oil, etc.

Use new refrigerant pipes.

In case of using the existing pipes for R22, be careful with

the following:

· Be sure to clean the pipes and make sure that the insides

of the pipes are clean.

· Change flare nut to the one provided with this product.

Use a newly flared pipe.

· Avoid using thin pipes.

Do not use refrigerant other than R32.

If other refrigerant (R22, etc.) is used, chlorine in refrige-

rant can cause deterioration of refrigerant oil, etc.

Handle tools with care.

If dirt, dust or moisture enters into refrigerant cycle, that can

cause deterioration of refrigerant oil or malfunction of com-

pressor.

Use the following tools specifically designed for

use with R32 refrigerant.

The following tools are necessary to use R32 refrigerant.

Flare tool

Electronic refrigerant

charging scale

Vacuum pump adaptor

Size adjustment gauge

Gauge manifold

Torque wrench

Gas leak detector

Charge hose

Tools for R32

Ventilate the room if refrigerant leaks during

operation. If refrigerant comes into contact with

a flame, poisonous gases will be released.

Never use any refrigerant other than that specified.

Doing so may cause a burst, an explosion, or fire when the

unit is being used, serviced, or disposed of.

Correct refrigerant is specified in the manuals and on the

spec labels provided with our products.

We will not be held responsible for mechanical failure,

system malfunction, unit breakdown or accidents caused

by failure to follow the instructions.

Use the specified refrigerant only.

OCH654

[1] Warning for service

(1) Do not alter the unit.

(2) For installation and relocation work, follow the instructions in the Installation Manual and use tools and pipe

components specifically made for use with refrigerant specified in the outdoor unit installation manual.

(3) Ask a dealer or an authorized technician to install, relocate and repair the unit.

For appliances not accessible to the general public.

(4) Refrigerant pipes connection shall be accessible for maintenance purposes.

(5)

If the air conditioner is installed in a small room or closed room, measures must be taken to prevent the refrigerant

concentration in the room from exceeding the safety limit in the event of refrigerant leakage. Should the refrigerant

leak and cause the concentration limit to be exceeded, hazards due to lack of oxygen in the room may result.

(6) Keep gas-burning appliances, electric heaters, and other fire sources (ignition sources) away from the location

where installation, repair, and other air conditioner work will be performed.

If refrigerant comes into contact with a flame, poisonous gases will be released.

(7) When installing or relocating, or servicing the air conditioner, use only the specified refrigerant (R32) to charge

the refrigerant lines.

Do not mix it with any other refrigerant and do not allow air to remain in the lines.

If air is mixed with the refrigerant, then it can be the cause of abnormal high pressure in the refrigerant line, and

may result in an explosion and other hazards.

(8) After installation has been completed, check for refrigerant leaks. If refrigerant leaks into the room and comes

into contact with the flame of a heater or portable cooking range, poisonous gases will be released.

(9) Do not use low temperature solder alloy in case of brazing the refrigerant pipes.

(10)

When performing brazing work, be sure to ventilate the room sufficiently. Make sure that there are no hazardous

or flammable materials nearby.

When performing the work in a closed room, small room, or similar location, make sure that there are no refriger-

ant leaks before performing the work.

If refrigerant leaks and accumulates, it may ignite or poisonous gases may be released.

(11)

Do not install the unit in places where refrigerant may build-up or places with poor ventilation such as a semi-base-

ment or a sunken place in outdoor: Refrigerant is heavier than air, and inclined to fall away from the leak source.

(12)

Do not use means to accelerate the defrosting process or to clean, other than those recommended by the manu-

facturer.

(13)

The appliance shall be stored in a room without continuously operating ignition sources (for example: open

flames, an operating gas appliance or an operating electric heater).

(14)

Do not pierce or burn.

(15)

Be aware that refrigerants may not contain an odour.

(16)

Pipe-work shall be protected from physical damage.

(17)

The installation of pipe-work shall be kept to a minimum.

(18)

Compliance with national gas regulations shall be observed.

(19)

Keep any required ventilation openings clear of obstruction.

(20)

Servicing shall be performed only as recommended by the manufacturer.

(21)

The appliance shall be stored in a well-ventilated area where the room size corresponds to the room area as

specified for operation.

(22)

Maintenance, service and repair operations shall be performed by authorized technician with required qualification.

(23)

Be sure to have appropriate ventilation in order to prevent ignition. Furthermore, be sure to carry out fire preven-

tion measures that there are no dangerous or flammable objects in the surrounding area.

[2] Cautions for service

(1) Perform service after recovering the refrigerant left in unit completely.

(2) Do not release refrigerant in the air.

(3) After completing service, charge the cycle with specified amount of refrigerant.

(4) When performing service, install a filter drier simultaneously.

Be sure to use a filter drier for new refrigerant.

[3] Additional refrigerant charge

When charging directly from cylinder

R32 is a single refrigerant and its composition does not change. Therefore, both liquid charging and gas charging are

possible. Liquid charging of refrigerant all at once from the low-pressure side may cause the compressor malfunction.

Accordingly, make sure that charging is gradual.

< Cylinder without a siphon tube >< Cylinder with a siphon tube >

Charging liquid refrigerant

Cylinder

Liquid

Valve

Liquid

Valve

OCH654

[4] Cautions for unit using R32 refrigerant

Basic work procedures are the same as those for conventional units using refrigerant R410A. However, pay careful

attention to the following points.

(1) Information on servicing

(1-1) Checks on the Area

Prior to beginning work on systems containing flammable refrigerants, safety checks are necessary to ensure that the

risk of ignition is minimized.

For repair to the refrigerating systems, (1-3) to (1-7) shall be completed prior to conducting work on the systems.

(1-2) Work Procedure

Work shall be undertaken under a controlled procedure so as to minimize the risk of a flammable gas or vapor being

present while the work is being performed.

(1-3) General Work Area

All maintenance staff and others working in the local area shall be instructed on the nature of work being carried out.

Work in confined spaces shall be avoided. The area around the workspace shall be sectioned off. Ensure that the con-

ditions within the area have been made safe by control of flammable material.

(1-4) Checking for Presence of Refrigerant

The area shall be checked with an appropriate refrigerant detector prior to and during work, to ensure the technician is

aware of potentially toxic or flammable atmospheres. Ensure that the leak detection equipment being used is suitable

for use with all applicable refrigerants, i.e. non-sparking, adequately sealed or intrinsically safe.

(1-5) Presence of Fire Extinguisher

If any hot work is to be conducted on the refrigeration equipment or any associated parts, appropriate fire extinguishing

equipment shall be available to hand.

Have a dry powder or CO2 fire extinguisher adjacent to the charging area.

(1-6) No Ignition Sources

No person carrying out work in relation to a refrigeration system which involves exposing any pipe work shall use any

sources of ignition in such a manner that it may lead to the risk of fire or explosion. All possible ignition sources, includ-

ing cigarette smoking, should be kept sufficiently far away from the site of installation, repairing, removing and disposal,

during which refrigerant can possibly be released to the surrounding space. Prior to work taking place, the area around

the equipment is to be surveyed to make sure that there are no flammable hazards or ignition risks. “No Smoking” signs

shall be displayed.

(1-7) Ventilated Area

Ensure that the area is in the open or that it is adequately ventilated before breaking into the system or conducting any

hot work. A degree of ventilation shall continue during the period that the work is carried out. The ventilation should

safely disperse any released refrigerant and preferably expel it externally into the atmosphere.

(1-8) Checks on the Refrigeration Equipment

Where electrical components are being changed, they shall be fit for the purpose and to the correct specification. At all

times the manufacturer’s maintenance and service guidelines shall be followed. If in doubt, consult the manufacturer’s

technical department for assistance.

The following checks shall be applied to installations using flammable refrigerants:

• The charge size is in accordance with the room size within which the refrigerant containing parts are installed.

• The ventilation machinery and outlets are operating adequately and are not obstructed.

• Marking to the equipment continues to be visible and legible. Markings and signs that are illegible shall be corrected.

• Refrigeration pipe or components are installed in a position where they are unlikely to be exposed to any substance

which may corrode refrigerant containing components, unless the components are constructed of materials which are

inherently resistant to being corroded or are suitably protected against being corroded.

(1-9) Checks on Electrical Devices

Repair and maintenance to electrical components shall include initial safety checks and component inspection proce-

dures. If a fault exists that could compromise safety, then no electrical supply shall be connected to the circuit until it is

satisfactorily dealt with. If the fault cannot be corrected immediately but it is necessary to continue operation, an ade-

quate temporary solution shall be used. This shall be reported to the owner of the equipment so all parties are advised.

Initial safety checks shall include that:

• capacitors are discharged: this shall be done in a safe manner to avoid possibility of sparking;

• no live electrical components and wiring are exposed while charging, recovering or purging the system;

• there is continuity of earth bonding

(2) Repairs to Sealed Components

(2-1) During repairs to sealed components, all electrical supplies shall be disconnected from the equipment being worked

upon prior to any removal of sealed covers, etc. If it is absolutely necessary to have an electrical supply to equipment

during servicing, then a permanently operating form of leak detection shall be located at the most critical point to warn

of a potentially hazardous situation.

(2-2) Particular attention shall be paid to the following to ensure that by working on electrical components, the casing is not

altered in such a way that the level of protection is affected. This shall include damage to cables, excessive number of

connections, terminals not made to original specification, damage to seals, incorrect fitting of glands, etc.

Ensure that the apparatus is mounted securely.

Ensure that seals or sealing materials have not degraded to the point that they no longer serve the purpose of prevent-

ing the ingress of flammable atmospheres.

Replacement parts shall be in accordance with the manufacturer’s specifications.

OCH654

6Continued to the next page

(3) Repair to intrinsically Safe Components

Do not apply any permanent inductive or capacitance loads to the circuit without ensuring that this will not exceed the

permissible voltage and current permitted for the equipment in use.

Intrinsically safe components are the only types that can be worked on while live in the presence of a flammable atmos-

phere. The test apparatus shall be at the correct rating.

Replace components only with parts specified by the manufacturer. Other parts may result in the ignition of refrigerant in

the atmosphere from a leak.

(4) Cabling

Check that cabling will not be subject to wear, corrosion, excessive pressure, vibration, sharp edges or any other adverse

environmental effects. The check shall also take into account the effects of aging or continual vibration from sources such

as compressors or fans.

(5) Detection of Flammable Refrigerants

Under no circumstances shall potential sources of ignition be used in the searching for or detection of refrigerant leaks.

A halide torch (or any other detector using a naked flame) shall not be used.

(6) Leak Detection Methods

Electronic leak detectors may be used to detect refrigerant leaks but, in the case of flammable refrigerants, the sensitivity

may not be adequate, or may need re-calibration. (Detection equipment shall be calibrated in a refrigerant-free area.)

Ensure that the detector is not a potential source of ignition and is suitable for the refrigerant used. Leak detection equip-

ment shall be set at a percentage of the LFL of the refrigerant and shall be calibrated to the refrigerant employed, and the

appropriate percentage of gas (25% maximum) is confirmed.

Leak detection fluids are suitable for use with most refrigerants but the use of detergents containing chlorine shall be

avoided as the chlorine may react with the refrigerant and corrode the copper pipe-work.

If a leak is suspected, all naked flames shall be removed/extinguished.

If a leakage of refrigerant is found which requires brazing, all of the refrigerant shall be recovered from the system, or

isolated (by means of shut off valves) in a part of the system remote from the leak. For appliances containing flammable

refrigerants, oxygen free nitrogen (OFN) shall then be purged through the system both before and during the brazing pro-

cess.

(7) Removal and Evacuation

When breaking into the refrigerant circuit to make repairs – or for any other purpose conventional procedures shall be

used. However, for flammable refrigerants it is important that best practice is followed since flammability is a considera-

tion. The following procedure shall be adhered to:

•removerefrigerant

•purgethecircuitwithinertgas

•evacuate

•purgeagainwithinertgas

•openthecircuitbycuttingorbrazing.

The refrigerant charge shall be recovered into the correct recovery cylinders. For appliances containing flammable refrig-

erants, the system shall be “flushed” with OFN to render the unit safe. This process may need to be repeated several

times.

Compressed air or oxygen shall not be used for purging refrigerant systems.

For appliances containing flammable refrigerants, flushing shall be achieved by breaking the vacuum in the system with

OFN and continuing to fill until the working pressure is achieved, then venting to atmosphere, and finally pulling down to

a vacuum. This process shall be repeated until no refrigerant is within the system. When the final OFN charge is used,

the system shall be vented down to atmospheric pressure to enable work to take place. This operation is absolutely vital

if brazing operations on the pipe-work are to take place.

Ensure that the outlet for the vacuum pump is not close to any ignition sources and that ventilation is available.

(8) Charging Procedures

In addition to conventional charging procedures, the following requirements shall be followed:

• Ensure that contamination of different refrigerants does not occur when using charging equipment. Hoses or lines

shall be as short as possible to minimize the amount of refrigerant contained in them.

• Cylinders shall be kept upright.

• Ensure that the refrigeration system is earthed prior to charging the system with refrigerant.

• Label the system when charging is complete (if not already).

• Extreme care shall be taken not to overfill the refrigeration system.

Prior to recharging the system, it shall be pressure-tested with the appropriate purging gas. The system shall be leak-

tested on completion of charging but prior to commissioning. A follow up leak test shall be carried out prior to leaving the

site.

(9) Decommissioning

Before carrying out this procedure, it is essential that the technician is completely familiar with the equipment and all its

detail. It is recommended good practice that all refrigerants are recovered safely. Prior to the task being carried out, an

oil and refrigerant sample shall be taken in case analysis is required prior to re-use of reclaimed refrigerant. It is essential

that electrical power is available before the task is commenced.

a) Become familiar with the equipment and its operation.

OCH654

b) Isolate system electrically.

c) Before attempting the procedure, ensure that:

•mechanicalhandlingequipmentisavailable,ifrequired,forhandlingrefrigerantcylinders;

•allpersonalprotectiveequipmentisavailableandbeingusedcorrectly;

•therecoveryprocessissupervisedatalltimesbyacompetentperson;

•recoveryequipmentandcylindersconformtotheappropriatestandards.

d) Pump down refrigerant system, if possible.

e) If a vacuum is not possible, make a manifold so that refrigerant can be removed from various parts of the system.

f) Make sure that cylinder is situated on the scales before recovery takes place.

g) Start the recovery machine and operate in accordance with manufacturer’s instructions.

h) Do not overfill cylinders. (No more than 80 % volume liquid charge).

i) Do not exceed the maximum working pressure of the cylinder, even temporarily.

j) When the cylinders have been filled correctly and the process completed, make sure that the cylinders and the equip-

ment are removed from site promptly and all isolation valves on the equipment are closed off.

k) Recovered refrigerant shall not be charged into another refrigeration system unless it has been cleaned and checked.

(10) Labelling

Equipment shall be labelled stating that it has been de-commissioned and emptied of refrigerant. The label shall be

dated and signed. For appliances containing flammable refrigerants, ensure that there are labels on the equipment stat-

ing the equipment contains flammable refrigerant.

(11) Recovery

When removing refrigerant from a system, either for servicing or decommissioning, it is recommended good practice

that all refrigerants are removed safely. When transferring refrigerant into cylinders, ensure that only appropriate refrig-

erant recovery cylinders are employed. Ensure that the correct number of cylinders for holding the total system charge

are available. All cylinders to be used are designated for the recovered refrigerant and labelled for that refrigerant (i.e.

special cylinders for the recovery of refrigerant). Cylinders shall be complete with pressure-relief valve and associated

shut-off valves in good working order. Empty recovery cylinders are evacuated and, if possible, cooled before recovery

occurs.

The recovery equipment shall be in good working order with a set of instructions concerning the equipment that is at

hand and shall be suitable for the recovery of all appropriate refrigerants including, when applicable, flammable refriger-

ants. In addition, a set of calibrated weighing scales shall be available and in good working order. Hoses shall be com-

plete with leak-free disconnect couplings and in good condition. Before using the recovery machine, check that it is in

satisfactory working order, has been properly maintained and that any associated electrical components are sealed to

prevent ignition in the event of a refrigerant release. Consult manufacturer if in doubt.

The recovered refrigerant shall be returned to the refrigerant supplier in the correct recovery cylinder, and the relevant

waste transfer note arranged. Do not mix refrigerants in recovery units and especially not in cylinders. If compressors or

compressor oils are to be removed, ensure that they have been evacuated to an acceptable level to make certain that

flammable refrigerant does not remain within the lubricant. The evacuation process shall be carried out prior to returning

the compressor to the suppliers. Only electric heating to the compressor body shall be employed to accelerate this pro-

cess. When oil is drained from a system, it shall be carried out safely.

OCH654

2-3. PRECAUTIONS WHEN REUSING EXISTING R22/R410a REFRIGERANT PIPES

(1) Flowchart

[3] Service tools

Use the below service tools as exclusive tools for R32 refrigerant.

No. Tool name Specifications

1Gauge manifold · Only for R32

· Use the existing fitting specifications. (UNF1/2)

· Use high-tension side pressure of 5.3MPa·G or over.

2Charge hose · Only for R32

· Use pressure performance of 5.09MPa·G or over.

3Electronic weighing scale —

4Gas leak detector · Use the detector for R134a, R407C, R410a or R32.

5Adaptor for reverse flow check · Attach on vacuum pump.

6Refrigerant charge base —

7Refrigerant cylinder · Only for R32

· Cylinder with syphon

8Refrigerant recovery equipment —

Perform the airtight test, vacuum air purging,

additional refrigerant charging (if necessary),

and gas leak check.

•Refertotheowchartbelowtodetermineiftheexistingpipescanbeusedandifitisnecessarytousealterdrier.

•Ifthediameteroftheexistingpipesisdifferentfromthespecieddiameter,refertotechnologicaldatamaterialstoconrmif

the pipes can be used.

▼

▼▼

Measure the existing pipe thickness and

check for damage.

The existing pipe thickness meets specica-

tions and the pipes are not damaged.

Check if the existing air conditioner can operate.

After operating the cooling system for about 30

minutes, do a pump down work.

Disconnect the existing air conditioner from the

pipes.

Attach the new air conditioner

Test run The existing pipes cannot be reused.

Use new pipes.

•Iftheexistingairconditionercannotoperate,usea

refrigerant recovery device to collect the refrigerant.

•Incaseexistingpipeswereusedforgasoroil

heat pump systems, be sure to clean the pipes for

ZM100–140 models.

The existing pipe thickness does not meet

specications or the pipes are damaged.

OCH654

(2) Cautions for refrigerant piping work

New refrigerant R32 is adopted for replacement inverter series. Although the refrigerant piping work for R32 is same as for

R22, exclusive tools are necessary so as not to mix with different kind of refrigerant. Furthermore as the working pressure

of R32 is 1.6 times higher than that of R22, their sizes of flared sections and flare nuts are different.

1Thickness of pipes

Because the working pressure of R32 is higher compared to R22, be sure to use refrigerant piping with thickness shown

below. (Never use pipes of 0.7 mm or below.)

2Dimensions of flare cutting and flare nut

The component molecules in HFC refrigerant are smaller compared to conventional refrigerants. In addition to that, R32

is a refrigerant, which has higher risk of leakage because its working pressure is higher than that of other refrigerants.

Therefore, to enhance airtightness and strength, flare cutting dimension of copper pipe for R32 has been specified sepa-

rately from the dimensions for other refrigerants as shown below. The dimension B of flare nut for R32 also has partly

been changed to increase strength as shown below. Set copper pipe correctly referring to copper pipe flaring dimensions

for R32 below. For 1/2 and 5/8 inch pipes, the dimension B changes.

Use torque wrench corresponding to each dimension.

3Tools for R32 (The following table shows whether conventional tools can be used or not.)

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

0.8

1.0

—

0.8

1.0

Nominal

dimensions (in)

Diagram below: Piping diameter and thickness

Outside

diameter (mm)

Thickness (mm)

R32/R410a R22

1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

9.1

13.2

16.6

19.7

—

9.0

13.0

16.2

19.4

23.3

Nominal

dimensions (in)

Flare cutting dimensions

Outside

diameter

Dimension A ( )

-0.4 (mm)

(mm)

R32/R410a R22 1/4

3/8

1/2

5/8

3/4

6.35

9.52

12.70

15.88

19.05

17.0

22.0

26.0

29.0*

—

17.0

22.0

24.0

27.0

36.0

Nominal

dimensions (in)

Flare nut dimensions

Outside

diameter

Dimension B (mm)

(mm)

R32/R410a R22

* 36.00 mm for

indoor unit of

ZM100, 125

and 140

Gauge manifold

Charge hose

Gas leak detector

Refrigerant recovery equipment

Refrigerant cylinder

Safety charger

Charge valve

Vacuum pump

Flare tool

Bender

Pipe cutter

Welder and nitrogen gas cylinder

Refrigerant charging scale

Vacuum gauge or thermis-

tor vacuum gauge and

vacuum valve

Charging cylinder

Air purge, refrigerant charge

and operation check

Gas leak check

Refrigerant recovery

Refrigerant charge

Prevent compressor malfunction

when charging refrigerant by

spraying liquid refrigerant

Prevent gas from blowing out

when detaching charge hose

Vacuum drying and air

purge

Flaring work of piping

Bend the pipes

Cut the pipes

Weld the pipes

Refrigerant charge

Check the degree of vacuum. (Vacuum

valve prevents back flow of oil and refri-

gerant to thermistor vacuum gauge)

Refrigerant charge

Tool exclusive for R32

Tool for HFC refrigerant

Tool exclusive for R32

Tools for other refrigerants can

be used if equipped with adap-

ter for reverse flow check

Tools for other refrigerants

can be used by adjusting

flaring dimension

Tools for other refrigerants can be used

Tools for other refrigerants

can be used

Tool exclusive for R32

Tools and materials Use R32 tools

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

: Prepare a new tool. (Use the new tool as the tool exclusive for R32.)

: Tools for other refrigerants can be used under certain conditions.

: Tools for other refrigerants can be used.

Can R22 tools be used?

Can R407C tools be used?

(Usable if equipped

with adapter for rever-

se flow)

(Usable by adjusting

flaring dimension)

Can R410a tools be used?

Dimension A

Dimension B

OCH654

2-4. Choosing the outdoor unit installation location

R32 is heavier than air—as well as other refrigerants—

so tends to accumulate at the base (in the vicinity of the

floor). If R32 accumulates around base, it may reach a

flammable concentration in case room is small. To avoid

ignition, maintaining a safe work environment is required

by ensuring appropriate ventilation. If a refrigerant leak is

confirmed in a room or an area where there is insufficient

ventilation, refrain from using of flames until the work

environment can be improved by ensuring appropriate

ventilation.

Install outdoor units in a place where at least one of the

four sides is open, and in a sufficiently large space with-

out depressions.

2-5. Minimum installation area

If you unavoidably install a unit in a space where all four sides are blocked or there are depressions, confirm that one of

these situations (A, B or C) is satisfied.

Note: These countermeasures are for keeping safety not for specification guarantee.

A) Secure sufficient installation space (minimum installation area Amin).

Install in a space with an installation area of Amin or more, corresponding to refrigerant quantity M (factory-charged

refrigerant + locally added refrigerant).

B) Install in a space with a depression height of [ 0.125 [m]

OK OK

OK NG

Amin

Height from the bottom of

0.125 [m] or less Height from the bottom of

0.125 [m] or less

M [kg] Amin [m²]

1.0 12

1.5 17

2.0 23

2.5 28

3.0 34

3.5 39

4.0 45

4.5 50

5.0 56

5.5 62

6.0 67

6.5 73

7.0 78

7.5 84

OCH654

C) Create an appropriate ventilation open area.

Make sure that the width of the open area is 0.9 [m] or more and the height of the open area is 0.15 [m] or more.

However, the height from the bottom of the installation space to the bottom edge of the open area should be 0.125 [m]

or less.

Open area should be 75% or more opening.

■Indoorunits

Install in a room with a floor area of Amin or more, corresponding to refrigerant quantity M (factory-charged refrig-

erant + locally added refrigerant).

* For the factory-charged refrigerant amount, refer to the spec nameplate or installation manual.

For the amount to be added locally, refer to the installation manual.

Install the indoor unit so that the height from the floor to the bottom of the indoor unit is h0;

for wall mounted: 1.8 m or more;

for ceiling suspended, cassette and ceiling concealed: 2.2 m or more.

* There are restrictions in installation height for each model, so read the installation manual for the particular unit.

75% or more opening

Width W 0.9 [m] or more

Height from the bottom

0.125 [m] or less

Height H 0.15 [m] or more

M [kg] Amin [m²]

1.0 4

1.5 6

2.0 8

2.5 10

3.0 12

3.5 14

4.0 16

4.5 20

5.0 24

5.5 29

6.0 35

6.5 41

7.0 47

7.5 54 Wall mounted

h0 ] 1.8 [m]

Ceiling concealedCassetteCeiling suspended

h0 ] 2.2 [m]h0 ] 2.2 [m]h0 ] 2.2 [m]

OCH654

3 FEATURES

CHARGELESS SYSTEM

PRE-CHARGED REFRIGERANT IS SUPPLIED FOR PIPING LENGTH AT SHIPMENT

Maximum 30 m

The refrigerant circuit with LEV (Linear Expansion Valve) and power receiver/accumulator always control the optimal refrig-

erant level regardless of the length (30 m maximum and 5 m minimum) of piping. The additional refrigerant charging work

during installation often causes problems. It is completely eliminated by chargeless system. This unique system improves

the quality and reliability of the work done. It also helps to speed up the installation time.

PUZ-ZM100VKA

PUZ-ZM125VKA

PUZ-ZM140VKA

PUZ-ZM100YKA

PUZ-ZM125YKA

PUZ-ZM140YKA



OCH654

/min(CFM

)

mm (inch)

kg (lb)

mm (inch)

Power supply (phase, cycle, voltage)

Max. current

External finish

Refrigerant control

Compressor

Model

Motor output

Starter type

Protection devices

Crankcase heater

Heat exchanger

Fan Fan(drive) oNo.

Fan motor output

Airflow

Defrost method

Sound pressure level

Dimensions

Weight

Refrigerant

Charge

Oil (Model)

Pipe size O.D.

Connection method

Between the indoor &

outdoor unit

Cooling

Heating

Liquid

Gas

Indoor side

Outdoor side

Height difference

Piping length

Service Ref. PUZ-ZM140VKA.UKPUZ-ZM125VKA.UK

PUZ-ZM100VKA.UK

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Propeller fan o2

0.060+0.060

Reverse cycle

1,050 (41-5/16)

330+40 (13+1-9/16)

1,338 (52-11/16)

R32

4.0 (8.8)

1.40 (FW68S)

9.52 (3/8)

15.88 (5/8)

Flared

Maximum 30 m

Maximum 100 m

2.9

HP switch

Comp. surface thermo

Discharge thermo

Single 50 Hz, 230 V

OUTDOOR UNIT

REFRIGERANT PIPING

2.6

1.7

26.5

AVB33FADMT

116 (256) 118 (260)

110 (3,880) 120 (4,230)

/min(CFM

)

mm (inch)

kg (lb)

mm (inch)

Power supply (phase, cycle, voltage)

Max. current

External finish

Refrigerant control

Compressor

Model

Motor output

Starter type

Protection devices

Crankcase heater

Heat exchanger

Fan Fan(drive) oNo.

Fan motor output

Airflow

Defrost method

Sound pressure level

Dimensions

Weight

Refrigerant

Charge

Oil (Model)

Pipe size O.D.

Connection method

Between the indoor &

outdoor unit

Cooling

Heating

Liquid

Gas

Indoor side

Outdoor side

Height difference

Piping length

Service Ref.

PUZ-ZM140YKA.UKPUZ-ZM125YKA.UKPUZ-ZM100YKA.UK

9.5

Munsell 3Y 7.8/1.1

Linear Expansion Valve

Hermetic

Inverter

—

Plate fin coil

Propeller fan o2

0.060+0.060

Reverse cycle

1,050 (41-5/16)

330+40 (13+1-9/16)

1,338 (52-11/16)

R32

4.0 (8.8)

1.40 (FW68S)

9.52 (3/8)

15.88 (5/8)

Flared

Maximum 30 m

Maximum 100 m

2.9

HP switch

Comp. surface thermo

Discharge thermo

3phase, 50 Hz, 400 V

OUTDOOR UNIT

REFRIGERANT PIPING

2.61.7

110 (3,880) 120 (4,230)

8 13

AVB33FACMT

123 (271) 125 (276) 131 (289)

4 SPECIFICATIONS

OCH654

5DATA

5-1. REFILLING REFRIGERANT CHARGE (R32: kg)

0.466

1.199

AVB33FADMT AVB33FACMT

PUZ-ZM100/125/140VKA.UK PUZ-ZM100/125/140YKA.UK

Service Ref.

Compressor model

(at 20°C)

U-V

U-W

W-V

Winding

Resistance

( ")

Additional charge is required for pipes longer

than 30 m.

Service Ref. Piping length (one way) Initial

charged

10 m 20 m 30 m 40 m 50 m 60 m 75 m 100 m

PUZ-ZM100VKA.UK

PUZ-ZM100YKA.UK 4.0 4.0 4.0 4.4 4.8 5.2 5.8 6.8 4.0

PUZ-ZM125VKA.UK

PUZ-ZM125YKA.UK 4.0 4.0 4.0 4.4 4.8 5.2 5.8 6.8 4.0

PUZ-ZM140VKA.UK

PUZ-ZM140YKA.UK 4.0 4.0 4.0 4.4 4.8 5.2 5.8 6.8 4.0

5-2. COMPRESSOR TECHNICAL DATA

OCH654

5-3. NOISE CRITERION CURVES

1.5 m

1 m

MICROPHONE

UNIT

GROUND

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUZ-ZM100VKA.UK

PUZ-ZM100YKA.UK

COOLING

MODE

HEATING

SPL(dB)

LINE

10 63 125 250 500 1000 2000 4000 8000

APPROXIMATE

THRESHOLD OF

HEARING FOR

CONTINUOUS

NOISE

OCTAVE BAND SOUND PRESSURE LEVEL, dB (0 dB = 0.0002 µbar)

BAND CENTER FREQUENCIES, Hz

NC-60

NC-50

NC-40

NC-30

NC-20

NC-70

PUZ-ZM125VKA.UK

PUZ-ZM140VKA.UK

PUZ-ZM125YKA.UK

PUZ-ZM140YKA.UK COOLING

MODE

HEATING

SPL(dB)

LINE

OCH654

The unit of pressure has been changed to MPa based on international SI system.

The conversion factor is : 1(MPa)=10.2(kgf/cm²)

TotalElectrical circuitRefrigerant circuitIndoor side

Outdoor

side

Representative matching

SHF

Mode

Capacity

Input

PLA-ZM100EA.UK PLA-ZM125EA.UK PLA-ZP140EA.UK

Cooling

9,500

2.03

Heating

11,200

2.47

Cooling

12,500

3.24

Heating

14,000

3.54

Cooling

13,400

3.61

Heating

16,000

4.25

9.18/3.08

2.51

1.00

0.73

0.10

10.99/3.74

2.51

0.72

—

14.33/4.91

2.68

0.93

0.64

0.123

15.62/5.36

2.81

0.73

—

15.99/5.34

2.72

0.90

0.67

0.14

18.83/6.27

2.87

0.70

—

1 , 50

230

1/3 , 50

230/400

1 , 50

230

1/3 , 50

230/400

1 , 50

230

1/3 , 50

230/400

Phase , Hz

Voltage

Current

Outdoor unit

Phase , Hz

Voltage

Current

Discharge pressure

Suction pressure

Discharge temperature

Condensing temperature

Suction temperature

Ref. pipe length

Intake air temperature

Discharge air temperature

Intake air temperature

MPa

°C

Indoor unit

D.B.

W.B.

D.B.

W.B.

PUZ-ZM100VKA.UK

PUZ-ZM100YKA.UK PUZ-ZM125VKA.UK

PUZ-ZM125YKA.UK PUZ-ZM140VKA.UK

PUZ-ZM140YKA.UK

0.47 0.45 0.52 0.50 0.66 0.64

PLA-ZM100EA.UK PLA-ZM125EA.UK PLA-ZM140EA.UK

5-4. STANDARD OPERATION DATA

OCH654

Unit: mm

PUZ-ZM100VKA.UK

PUZ-ZM125VKA.UK

PUZ-ZM140VKA.UK

PUZ-ZM100YKA.UK

PUZ-ZM125YKA.UK

PUZ-ZM140YKA.UK

6OUTLINES AND DIMENSIONS

OCH654

PUZ-ZM100VKA.UK PUZ-ZM125VKA.UK PUZ-ZM140VKA.UK

7WIRING DIAGRAM

Terminal Block

Motor for Compressor

Fan Motor

Solenoid Valve (4-Way Valve)

High Pressure Switch

Thermistor <Liquid>

Thermistor <Discharge>

Thermistor <2-Phase Pipe>

Thermistor <Ambient>

Thermistor <Heat Sink>

Thermistor <Comp. Surface>

Linear Expansion Valve

Reactor

Capacitor

P.B.

C.B.

U/V/W

DCL1, DCL2

IGBT

EI, E2, E3, E4

SW1

SW4

SW5

SW6

SW7

SW8

SW9

Power Circuit Board

Connection Terminal <U/V/W-Phase>

Connection Terminal <L-Phase>

Connection Terminal <N-Phase>

Connection Terminal <Reactor>

Power Module

Connection Terminal <Ground>

Controller Circuit Board

Switch

<Manual Defrost, Defect History,

Record Reset, Refrigerant Address>

Switch

Switch

Switch

Switch <Function Switch>

SWP

CN31

CN3S

CNDM

CN51

SV1

CNM

CNMNT

CNVMNT

LED1, LED2

F1, F2, F3, F4

X51, X52, X54

Switch <Pump Down>

Connector <Emergency Operation>

Connector <Connection for Option>

Connector

Connector

LED <Operation Inspection Indicators>

Fuse <T6.3AL250V>

Relay

SYMBOL

TB1

MF1, MF2

21S4

63H

TH3

TH4

TH6

TH7

TH8

TH33

LEV-A, LEV-B, LEV-C

DCL

CY1, CY2

CX1

SYMBOL SYMBOLNAME NAME NAME

P.B.

WDCL

LN S1 S2 S3

POWER SUPPLY

~/N 230V 50Hz

TB1

CN2

(RD)

CN4

(WH)

1 721

GNYE

(RD)

CNAC2

(WH)

CNAC1

CN52C

(RD)

1 3

DCL1DCL2

UVW

CNDC

(PK)

CY1

CX1 CY2

IGBT

t°TH8

C. B. TH6TH7 TH4TH3

t° t° t° t°

LEV-A

CNS

(WH)

CNAC

(WH)

CNDC

(PK)

F4 SV1

(GY)

CN2

(RD)

CN4

(WH)

SW5

SW7

TH7/6

(RD) TH3

(WH) TH4

(WH)

TRANS

CNVMNT

(WH) CNMNT

(WH)

SW8

SW9

SW6SW1

CN31

X54

63H

(YE)

* 1

1 4 1 2 2 1

1 3

31 1

1 2

3431 SS

(WH)

X51

LEV-A

(WH) 51

21S4

(GN)

X52

MF1

CNF1

(WH)

63H

LEV-B

(RD)

LEV-B

MF2

CNF2

(WH)

2CN3S

(WH) 31

CNDM

(WH)

CN51

(WH)

TH33

(YE)

TH33

t°

LEV-C

(BU) 51

LEV-C

CN52C

(RD)

1 3

When M-NET Adapter is connected

CN2M

(WH)

CN5

(WH)

CND

(WH)

M-NET

M-NET ADAPTER

3 5

CNM

(WH)

1 14

LED1

LED2

SWP

SW4

140 only

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

SW6 *2

MODEL

100V

125V

140V

The black square (■) indicates a switch position.

*1. MODEL SELECT

*2. SW6-1 to 3: Function switch

21S4

TB7

A B S

TO INDOOR

UNIT

SYMBOL

M-NETADAPTER

NAME

TB7

CN5

CND

CN2M

Terminal Block <M-NET connection>

Connector <Transmission>

Connector <Power Supply>

Connector <M-NET communication>

OCH654

PUZ-ZM100YKA.UK PUZ-ZM125YKA.UK PUZ-ZM140YKA.UK

Terminal Block <Power Supply>

Terminal Block <Indoor/Outdoor>

Motor for Compressor

Fan Motor

Solenoid Valve (4-Way Valve)

High Pressure Switch

Thermistor <Liquid>

Thermistor <Discharge>

Thermistor <2-Phase Pipe>

Thermistor <Ambient>

Thermistor <Heat Sink>

Thermistor <Comp. Surface>

Linear Expansion Valve

Reactor

Capacitor

Rush Current Protect Resistor

Capacitor

Power Circuit Board

Connection Terminal

Connection Terminal

N.F.

CONV.B.

C.B.

TB-N

X52CA/B

LI1/LI2/LI3/NI

LO1/LO2/LO3/NO

GD1,GD3

L1-A1/IN

L1-A2/OU

L2-A2/OU

L3-A2/OU

N-IN

CK-OU

SW1

SW4

SW5

SW6

Connection Terminal

52C Relay

Noise Filter Circuit Board

Connection Terminal

Connection Terminal

Connection Terminal

Converter Circuit Board

Connection Terminal

<L1-Power Supply>

Connection Terminal

<L1-Power Supply>

Connection Terminal

<L2-Power Supply>

Connection Terminal

<L3-Power Supply>

Connection Terminal

Controller Circuit Board

Switch <Manual Defrost, Defect History,

Record Reset, Refrigerant Address>

Switch

Switch

Switch

SW7

SW8

SW9

SWP

CN31

CN3S

CNDM

CN51

SV1

CNM

CNMNT

CNVMNT

LED1, LED2

F1, F2, F3, F4

X51, X52, X54

Switch <Function Switch>

Switch <Pump Down>

Connector <Emergency Operation>

Connector <Connection for Option>

Connector

Connector

LED <Operation Inspection Indicators>

Fuse <T6.3AL250V>

Relay

TB-U/V/W

TB-L1/L2/L3

SYMBOL

TB1

TB2

MF1, MF2

21S4

63H

TH3

TH4

TH6

TH7

TH8

TH33

LEV-A, LEV-B, LEV-C

ACL1,ACL2,ACL3,ACL4

CY1, CY2

P.B.

SYMBOL SYMBOLNAME NAME NAME

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

SW6

MODEL

100Y

125Y

140Y

The black square (■) indicates a switch position.

*1. MODEL SELECT

X51

When M-NET Adapter is connected

CN2M

(WH)

CN5

(WH)

CND

(WH)

M-NET

M-NET ADAPTER

TB7

A B S

*2. SW6-1 to 3: Function switch

MF1

CNF1

(WH)

MF2

CNF2

(WH)

P.B.

POWER

SUPPLY

3N~

400V 50Hz

TB1

N.F.

CNAC1

(WH) 31

CNDC

(PK) 31 CNL

(BU)

CNAC2

(RD)

CNCT

(RD) 1 2

LO1

LO2

LO3

GD1

LI1

LI2

LI3

GD3

ACL4

ACL3

ACL2

ACL1

TB2

CN7

(WH)

L3-OU

L3-A2

L2-OU

L2-A2

L1-OU

L1-A2

L1-A1

L1-IN

N-IN

CK-OU

X52CA

GNYE

CONV.B.

INDOOR

UNIT

CN7

(WH)

1 3 1 2

CN6

(WH) 1 2

CN5

(RD) CN2

(RD)

1 7 1 2

CN4

(WH)

TB-N

TB-U

TB-V

TB-W

L3IN

TB-L2

TB-L1

TH8

t°

CY1

CY2

C. B.

TH6TH7 TH4TH3

21S4

t° t° t° t°

LEV-A

CNS

(WH)

CNAC

(WH)

CNDC

(PK)

F4 SV1

(GY)

CN2

(RD)

CN4

(WH)

TH7/6

(RD) TH3

(WH) TH4

(WH)

TRANS

CNVMNT

(WH) CNMNT

(WH)

X54

63H

(YE)

1 4 1 2 2 1

1 3

31 1

1 2

3431 SS

(WH)

LEV-A

(WH) 51

21S4

(GN)

X52

MF1

CNF1

(WH)

63H

LEV-B

(RD)

LEV-B

MF2

CNF2

(WH)

CN3S

(WH) 3

CNDM

(WH)

CN51

(WH)

TH33

(YE)

TH33

t°

LEV-C

(BU) 51

LEV-C

5 3 5

CNM

(WH)

1 14

LED1

LED2

140 only

TB-L3

X52CB

L3OUT

SW5

SW7

SW8

SW9

SW6SW1

CN31

* 1

SWP

SW4

SYMBOL

M-NETADAPTER

NAME

TB7

CN5

CND

CN2M

Terminal Block <M-NET connection>

Connector <Transmission>

Connector <Power Supply>

Connector <M-NET communication>

OCH654

8WIRING SPECIFICATIONS

8-1. FIELD ELECTRICAL WIRING (power wiring specifications)

Indoor/outdoor

unit connection

cable

Indoor

unit

Unit

power

supply

Outdoor

unit

Remote

controller

BEarth leakage breaker

Cwiring circuit breaker or

isolating switch

BEarth leakage breaker

Cwiring circuit breaker or

isolating switch

Indoor

unit

Unit

power

supply Indoor/outdoor

unit connection

cable

Indoor

unit

Outdoor

unit

Remote

controller

BEarth leakage breaker

Cwiring circuit breaker or

isolating switch

Indoor/outdoor

connection cable

Indoor

unit

Unit

power

supply

Indoor

unit

Indoor

unit

Outdoor

unit

Remote

controller

1:1 system Electrical wiring Synchronized twin and triple system Electrical wiring

•Synchronizedtwin

•Synchronizedtriple

Notes: 1. Wiring size must comply with the applicable local and national code..

2. Power supply cables and Indoor/Outdoor unit connecting cables shall not be lighter than polychloroprene sheathed flexible cable.

3. Install an earth longer than other cables.

Warning:

In case of A-control wiring, there is high voltage potential on the S3 terminal caused by electrical circuit design that has no electrical insulation between

power line and communication signal line. Therefore, please turn off the main power supply when servicing. And do not touch the S1, S2, S3 terminals

when the power is energized. If isolator should be used between indoor unit and outdoor unit, please use 3-pole type.

(Design 60245 IEC 57)

A-Control

Outdoor Unit

3 poles isolator

Power supply

Isolator

A-Control

Indoor Unit

Neversplicethepowercableortheindoor-outdoorconnectioncable,otherwiseitmayresultinasmoke,areorcommunicationfailure.

Outdoor unit model ZM100/125V ZM140V ZM100/125/140Y

Outdoor unit power supply

~/N (single), 50 Hz, 230 V ~/N (single), 50 Hz, 230 V 3N~ (3 ph 4-wires), 50 Hz, 400 V

Outdoor unit input capacity main switch (Breaker)

*1 32 A 40 A 16 A

Wiring

Wire No. ×

size (mm²)

Outdoor unit power supply 3 × Min. 4 3 × Min. 6 5 × Min. 1.5

Indoor unit-Outdoor unit *2 3 × 1.5 (Polar) 3 × 1.5 (Polar) 3 × 1.5 (Polar)

Indoor unit-Outdoor unit earth *2 1 × Min. 1.5 1 × Min. 1.5 1 × Min. 1.5

Remote controller-Indoor unit *3 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar) 2 × 0.3 (Non-polar)

Circuit rating

Outdoor unit L-N (single)

Outdoor unit L1-N, L2-N, L3-N (3 phase)

*4 230 V AC 230 V AC 230 V AC

Indoor unit-Outdoor unit S1-S2 *4 230 V AC 230 V AC 230 V AC

Indoor unit-Outdoor unit S2-S3 *4 24 V DC 24 V DC 24 V DC

Remote controller-Indoor unit *4 12 V DC 12 V DC 12 V DC

*1.A breaker with at least 3.0 mm contact separation in each pole shall be provided. Use earth leakage breaker (NV).

Make sure that the current leakage breaker is one compatible with higher harmonics.

Always use a current leakage breaker that is compatible with higher harmonics as this unit is equipped with an inverter.

The use of an inadequate breaker can cause the incorrect operation of inverter.

*2.(ZM100–140)

Maximum 45 m

If 2.5 mm² is used, maximum 50 m.

If 2.5 mm² is used and S3 is separated, maximum 80 m

Maximum 80 m. Total maximum including all indoor/indoor connection is 80 m.

*3. Maximum 500 m (When using 2 remote controllers, the maximum wiring length for the remote controller cables is 200 m.)

*4.TheguresareNOTalwaysagainsttheground.

S3 terminal has 24 V DC against S2 terminal. However between S3 and S1, these terminals are NOT electrically insulated by the transformer or other device.