Trane 4MXC8512B10N0 Скачать руководство пользователя страница 31

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Troubleshooting

•

Turn off the main power switch immediately if a malfunction is detected. Contact your servicing

or installing dealer. If the unit continues to run during a malfunction, the unit may be damaged

or electric shock or fire may occur.

• Do not try to move or reposition the units. Please contact the servicing/installing dealer to

repair or move the units.

• Check the following items before contacting the dealer.

CAUTION

Improper operation may lead to personal injury or casualty.

Cassette Unit

Condition

Possible Reason

Unit doesn’t run

When the unit is restarted

immediately after it has just

been turned off

Overload protection switch delays unit start up for three

minutes

When power is turned on

The unit is in standby for one minute

Mist comes from the unit When cooling cycle starts

Indoor high humidity air is cooled rapidly

Sound comes from the

unit

Slight cracking sound is heard

when unit starts

This sound occurs when the electronic expansion valve

initializes.

There is sound when cooling

The sound of refrigerant gas flowing through the unit

may be audible.

There is sound when unit

starts or stops

This sound occurs when gas refrigerant starts or stops

flowing.

There is slight sound when

unit is running or after running

This sound may be the condensate drain pump

operating.

Cracking sound is heard when

unit is operating and after

operating

This sound occurs when the unit panels expand or

contract due to temperature change.

The unit blows out dust

When the unit has been off for

a period of time

Dust that has collected in the indoor unit is blown out.

The unit emits odor

When the unit is operating

The room odor absorbed by the unit is blown out again.

Indoor unit still runs

after switch off

After every indoor unit

receives the "stop" signal, fan

will keep running

Indoor fan motor will keep running 20-70s so as to use

excess cooling and heating and prepare for the next

operation. When the X-Fan or Dry feature is activated,

the fan continues to operate for a short time to dry off

the coil.

Mode conflict

COOL or HEAT mode can not

be operated

When switching between cooling and heating modes,

the outdoor unit will take several minutes to reverse the

direction of refrigerant flow and to pre-heat the coil in

heating mode. COOL mode doesn't conflict with DRY

mode and FAN mode.

Error Code

E7 is shown on one or more

indoor units

E7 means that this indoor unit is calling for a mode

that conflicts with the mode of the outdoor unit. E7 will

disappear a few seconds after the mode of the unit is

changed to match the outdoor unit mode. The outdoor

unit mode will only change when all indoor units have

been changed to the new mode

Continuous low speed

fan operation

Cool or heat mode low speed

fan operation after setpoint

temperature achieved

Functionality ensures accurate temperature control for

the conditioned space

NOTE:

If the problem persists after checking the above items and taking appropriate measures, please

stop operation of the unit immediately and contact your local service agency or dealer. Diagnostics

and repairs should be completed by a professional service technician.

Содержание 4MXC8512B10N0

Страница 1: ...Installer s Manual Split System R 410A Air Handler for Multi Split Inverter System 12 000 Btu h to 24 000 Btu h Cassette Type Models 4MXC8512B10N0 4MXC8518B10N0 4MXC8524B10N0 May 2021 MS SVN36D EN ...

Страница 2: ...cautions Attention Warnings and Cautions appear at appropriate sections throughout this literature Read these carefully WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury CAUTION Indicates a potentially hazardous situation which if not avoided could result in minor or moderate injury It may also be used to alert against unsafe practices...

Страница 3: ...E FACTORY RECOMMENDED DAFNE HERMETIC OIL FV50S for servicing multi splits other than 4TXM2218A12N and 4TXM2221A13N 4TXM2218A12N and 4TXM2221A13N can use POE oil Important Environmental Concerns Scientific research has shown that certain man made chemicals can affect the earth s naturally occurring stratospheric ozone layer when released to the atmosphere In particular several of the identified che...

Страница 4: ...at the Indoor Unit 16 Installation of the Refrigerant Piping 17 Flare Processing 17 Bending Pipes 17 Connecting the Pipe at the Outdoor Units 18 Insulation of the Pipe Joints 19 Wiring the Indoor Unit 19 Stranded Wiring 21 Electrical Wiring 22 Wiring Precautions 22 Electrical Cable Connection 22 Grounding Requirements 23 Installation of Controllers 23 Install the Panel 24 Installation Checklist 26...

Страница 5: ... weight of the unit An inadequate base or incomplete installation may cause injury or property damage in the event the unit falls off of the base 5 Electrical work shall be carried out in accordance with the installation manual and local state and National Electric Code NEC Insufficient capacity or incomplete electrical work may cause electrical shock or fire 6 Be sure to use a dedicated power cir...

Страница 6: ... compressor is run causing abnormal pressure in the refrigerant cycle which could lead to breakage and injury 14 Be sure to establish a ground Do not ground the unit to a utility pipe arrester or telephone ground Incomplete ground may cause electrical shock or fire A high surge current from lightning or other sources may cause damage to the air conditioner 15 If the supply cord is damaged it must ...

Страница 7: ...m for adequate comfort control 4MXC8524B10N Model H 260 mm 20 mm Wall surface Wall surface Wall surface Ground surface H 10 2 inch m m 0 0 8 1 59 inch 1500 mm 59 inch h c n i 1 7 1500 mm 0 8 inch 4MXC8518B10N 4MXC8512B10N Cassette Components Air outlet vent Air filter in air inlet grille Air inlet grille Guide louver placed in air outlet vent Internal condensate pump Connecting pipe Drainage hose ...

Страница 8: ...sive heat from soldering brazing or welding with refrigerant vapors present can form highly toxic gases and extremely corrosive acids NOTICE System Component Damage Do not remove the seal caps from the refrigerant connections and piping until prepared to braze refrigerant lines to the connections Excessive exposure to atmosphere 5 min may allow moisture or dirt to contaminate the system damaging v...

Страница 9: ...ilation to prevent contamination of the units external and internal working parts 5 Be sure that the installation of the indoor unit conforms to the installation dimension diagram 6 Ensure the installation is horizontally level 7 Be sure to leave enough space to allow access for routine maintenance clearance between the bottom of the indoor unit and the floor should not be less than 71 inches 8 In...

Страница 10: ... Failure to follow all of the recommended safety warnings provided could result in death or serious injury Mounting Location 1 Confirm the mounting location with the customer Keep in mind the guidelines for a safe installation location on page 8 2 The drilling of holes in the ceiling must be done by the installing technician 3 The dimensions for the ceiling openings can be as large as 35 8 inches ...

Страница 11: ...lease insulate around the unit to prevent condensation The thickness of the insulation depends on the actual installation environment 11 Cassette Unit Unit Inch mm For the units 12 18k For the units 24k H H Fig 3 Item A Model B C D E F G H 12K 18K 24K 26 3 8 670 26 1 4 666 23 5 8 600 19 1 2 495 5 11 16 145 9 7 16 240 22 7 16 570 22 7 16 570 37 3 8 950 26 3 4 680 9 7 16 240 5 11 16 145 26 3 4 680 3...

Страница 12: ...l 9 The inner drainage pump and float switch are included in the indoor unit check the four corners of the unit to ensure they are level If the unit is slanted toward the opposite side of the drain pan from the float switch there may be a malfunction of the float switch that may lead to overflowing condensation 10 Remove the washer anchor board used to prevent a washer break off and tignten the nu...

Страница 13: ...when connecting multiple units Installation of the Condensate Pipe 1 The diameter of the drain pipe should be greater than or equal to that of the refrigerant pipe PVC pipe outer diameter 1 inch 25mm wall thickness 0 05 inches 1 5mm 2 The drain pipe should be as short as possible and with at least a 1 50 slope to avoid forming air pockets 3 If the proper degree of slope of the drain pipe is not fe...

Страница 14: ...lation of the Condensate Pipe Precautions for the Drain Pipe The installed height of the lift pipe should be less than 11 inches 280mm It is recommended to set an inclination angle of 1 2 for the lift pipe toward the drainage direction If the lift pipe and the unit form a right angle the lift pipe must be less than 11 8 inches 300mm from the unit Drain hose attachment Within 11 8 in 300mm Roof Dra...

Страница 15: ...nsure the water flow goes through the pipe correctly and observe the joint carefully to see if it leaks If this unit is installed in a newly built house it is suggested to perform this test prior to the ceiling installation Drain hose attachment Below 19 7in 500mm Below 3 in 75mm Above 3 9in 100mm T tie in joined drain hose The specs of the selected joined drain hose should fits the running capaci...

Страница 16: ...ection pipe is to be connected so as to prevent dust and impurities from coming into the pipe system Back up Wrench 1 When connecting the pipe to the unit or removing it from the unit please use both a torque wrench and a back up wrench See illustration below 2 When connecting smear both inside and outside of the flare nut with refrigeration oil tighten it by hand and then tighten it with the span...

Страница 17: ...e outdoor unit compatible with that of the indoor unit Installing the Refrigerant Piping Flaring Process 1 Hold the pipe downward to prevent cuttings from entering the pipe 2 Cut the refrigerant pipe with the pipe cutter and remove the burrs 3 Remove the flare nuts at the stop valve of the outdoor unit and inside the accessory bag of the indoor unit put them onto the refrigerant pipe as shown belo...

Страница 18: ...door unit Bending Pipes 1 The pipes should be shaped by your hands or a refrigerant pipe bending tool for tighter bends Be careful not to collapse them 2 Do not bend the pipes in an angle more than 90 3 When pipes are repeatedly bent or stretched the material will be prone to damage which may lead to refrigerant leaks Do not bend or stretch the pipes more than three times 4 Do not bend the pipe wh...

Страница 19: ...ing diagram Improper wiring would cause abnormal operation or damage to the unit 5 Do not let the electrical wires touch the refrigerant pipe the compressor the fan or other moving parts 6 Do not modify the wiring inside the indoor unit otherwise the manufacturer will not assume any responsibility for damage or abnormal operation of the unit Wiring the Indoor Unit 1 Open and remove the cover of th...

Страница 20: ...DOOR UNI T INDOOR UNIT E XT2 XT1 XT3 XT4 XT5 XT6 N L G G G G G NOTE The wiring diagrams in this guide are included as a reference The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice Always check the unit nameplate and wiring diagram for the actual unit requirements Note Ground must be wired from ...

Страница 21: ...sulation tube fasten it with the cable clamp Stranded Wire Note Match the terminal block numbers and communication wire colors with those of the indoor unit WARNING 1 Before starting work check that power is not being supplied to the indoor unit and outdoor unit and follow lock out tag out practices 2 Improperly installed field wiring poses fire and electrocution hazards Pay special attention to t...

Страница 22: ...error and the system will not operate WARNING 1 Before obtaining access to terminals all supply circuits must be disconnected 2 Improperly installed and grounded field wiring poses fire and electrocution hazards For high voltage connections flexible electrical conduit is recommended whenever vibration transmission may create a noise problem within the structure To avoid these hazards you MUST foll...

Страница 23: ...supply does not match the nameplate the compressor will not operate properly and the equipment may be damaged Grounding Requirements Be sure to follow your local state and National Electric Codes NEC when grounding this unit The air conditioner is classified as a Class I appliance and must be grounded The yellow green line of the air conditioner is the ground wire and can not be used for other pur...

Страница 24: ...essed to 0 2 0 3 inches 5 8mm 4 Check for gaps and uneven spacing around all edges of the panel Note Improper or uneven tightening of the screws may cause gap problems between the panel and the ceiling resulting in air leaks and condensation Air leak Air leak from ceiling Water condensatation water drop If a gap still exists between the ceiling and decorative panel after tightening the screws read...

Страница 25: ...Connect the wire connectors for the louver motor wire at 2 places installed on the panel At body At panel At body At panel 25 Cassette Unit ...

Страница 26: ...trocution hazard 9 Are there any obstructions near the air inlets and air outlets for the indoor and outdoor units Improper ventilation and airflow will cause insufficient cooling and heating Non compliance with unit clearances could cause a unit malfunction including air recirculation and coil freezing 10 Have dust and debris been cleaned and removed from the installation site Excessive dust and ...

Страница 27: ...eference The manufacturer has a policy of continuous product and product data improvement and reserves the right to change design and specifications without notice Always check the unit nameplate and wiring diagram for the actual unit requirements Cassette Indoor Unit 24K 27 Cassette Unit ...

Страница 28: ...Inch mm 10 1 16 255 12K 18K 24K 10 1 4 260 Unit mm inch Unit Inch mm Item A Model B C D E F G H 12K 18K 24K 26 3 8 670 26 1 4 666 23 5 8 600 19 1 2 495 5 11 16 145 9 7 16 240 22 7 16 570 22 7 16 570 37 3 8 950 26 3 4 680 9 7 16 240 5 11 16 145 26 3 4 680 30 11 16 780 33 1 16 840 30 11 16 780 28 Cassette Unit ...

Страница 29: ...temperature sensor is open short circuited 11 F2 Indoor evaporator temperature sensor is open short circuited 12 F3 Outdoor ambient temperature sensor is open short circuited 13 F4 Outdoor condenser temperature sensor is open short circuited 14 F5 Outdoor discharge temperature sensor is open short circuited 15 C5 Jumper cap malfunction protection 16 EE Loading EEPROM malfunction NOTE If there re o...

Страница 30: ...e from the remote controller the dual 8 nixie tube displays indoor temperature for 3s and then resume to display the set temperature If there is error error code will be displayed If there s multiple error error codes will be displayed in turn Auto button It s used for turning on or turning off the unit When use this button to turn in the unit the unit is under auto mode Test button It s only used...

Страница 31: ...nit blows out dust When the unit has been off for a period of time Dust that has collected in the indoor unit is blown out The unit emits odor When the unit is operating The room odor absorbed by the unit is blown out again Indoor unit still runs after switch off After every indoor unit receives the stop signal fan will keep running Indoor fan motor will keep running 20 70s so as to use excess coo...

Страница 32: ...er by rinsing with water otherwise electric shock may occur Cleaning the Air Filter 1 Open the air inlet grille Pull the 2 handles on the grille at the same time in the direction shown below Pull the filter assembly down slowly 2 Remove the air filter Pull the handle behind the air inlet grille raise it and lift the filter up and out 3 Clean the filter Wash the filter with lukewarm water If the fi...

Страница 33: ...cleaning solvents or dry with a heat source to avoid damage warping and discoloration 7 Install the cleaned and dried air filter grille 8 Between scheduled cleanings the outer surface of the grille and unit cover may be cleaned with a soft brush and wiped down with a cloth dampened with lukewarm water Changing the Air Purifier Filters 1 Open the air inlet grille Pull the 2 handles on the grille at...

Страница 34: ...it A power disconnect should be located near the outdoor unit 2 Clean the indoor unit filters 3 Clean any dust and debris on the indoor and outdoor units 4 In the event of rusting use anti rust paint to stop spreading of rust Parts Replacement Purchase parts from the installing or servicing dealer if necessary NOTE During leakage testing never mix oxygen ethyne acetylene or other dangerous gases i...

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