Troy-Bilt MXZ-3A30NA ユーザーズマニュアル

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•  Be sure to read “THE FOLLOWING SHOULD ALWAYS BE OBSERVED FOR SAFETY” before installing the air conditioner.

•  Be sure to observe the warnings and cautions specified here as they include important items related to safety.
•  After reading this manual, be sure to keep it together with the OPERATING INSTRUCTIONS for future reference.

 

CAUTION

(Could lead to serious injury in particular environments when operated incorrectly.)

n  Do not install the unit by yourself (user).

 Incomplete installation could cause fire or electric shock, injury due to the

unit falling, or leakage of water. Consult the dealer from whom you pur-

chased the unit or a qualified installer.

n  Perform the installation securely referring to the installation manual.

 Incomplete installation could cause fire or electric shock, injury due to the

unit falling, or leakage of water.

n  Install the unit securely in a place which can bear the weight of the 

If  the  installation  location  cannot  bear  the  weight  of  the  unit,  the  unit

could fall causing injury.

n  Perform electrical work according to the installation manual and be 

 If  the  capacity  of  the  power  circuit  is  insufficient  or  there  is  incomplete

electrical work, it could result in a fire or an electric shock.

n  Do not damage the wires by applying excessive pressure with parts 

 Damaged wires could cause fire.

n  Be sure to cut off the main power in case of setting up the indoor P.C. 

Failure to do so could cause electric shock.

n

 Incomplete connecting and securing could cause fire.

n

If gas leaks and accumulates in the area around the unit, it could cause
an explosion.

n  Do not use intermediate connection of the power cord or the exten-

 It could cause a fire or an electric shock due to defective contact, defec-

tive insulation, exceeding the permissible current, etc.

n

 The use of defective parts could cause an injury or leakage of water due

to a fire, an electric shock, the unit falling, etc.

n  When plugging the power supply plug into the outlet, make sure 

 If there is dust, clogging, or loose parts on the power supply plug or the

outlet, it could cause electric shock or fire. If loose parts are found on the

power supply plug, replace it.

n  Attach the electrical cover to the indoor unit and the service panel 

If the electrical cover of the indoor unit and/or the service panel of the

outdoor  unit  are  not  attached  securely,  it  could  result  in  a  fire  or  an
electric shock due to dust, water, etc.

n  When installing or relocating the unit, make sure that no sub-

 Any  presence  of  foreign  substance  such  as  air  can  cause  abnormal

pressure rise or an explosion.

n  Do not discharge the refrigerant into the atmosphere. If refrigerant 

 If refrigerant comes in contact with a fire, harmful gas could be gener-

ated.

n  Check that the refrigerant gas does not leak after installation has 

 If refrigerant gas leaks indoors, and comes into contact with the flame

of  a  fan  heater,  space  heater,  stove,  etc.,  harmful  substances  will  be
generated.

n  Use appropriate tools and piping materials for installation. 

The pressure of R410A is 1.6 times more than R22. Not using appropri-
ate tools or materials and incomplete installation could cause the pipes

to burst or injury.

n  When pumping down the refrigerant, stop the compressor before 

If  the  refrigerant  pipes  are  disconnected  while  the  compressor  is  run-
ning and the stop valve is open, air could be drawn in and the pressure

in  the  refrigeration  cycle  could  become  abnormally  high.  This  could

cause the pipes to burst or injury.

n  When installing the unit, securely connect the refrigerant pipes 

If the compressor is started before the refrigerant pipes are connected
and  when  the  stop  valve  is  open,  air  could  be  drawn  in  and  the  pres-

sure  in  the  refrigeration  cycle  could  become  abnormally  high.  This

could cause the pipes to burst or injury.

n

 If fastened too tight, a flare nut may break after a long period and cause

refrigerant leakage.

n  The unit shall be installed in accordance with national wiring regu-

n  Ground the unit correctly.

Do  not  connect  the  ground  to  a  gas  pipe,  water  pipe,  lightning  rod  or
telephone ground. Defective grounding could cause electric shock.

n   Install an ground leakage breaker depending on the installation 

If  an  ground  leakage  breaker  is  not  installed,  it  could  cause  electric
shock.

n  Perform the drainage/piping work securely according to the installa-

If  there  is  defect  in  the  drainage/piping  work,  water  could  drop  from  the
unit, soaking and damaging household goods.

n

 This could cause injury.
n  Do not install the outdoor unit where small animals may live.

If  small  animals  enter  and  touch  the  electric  parts  inside  the  unit,  it

could cause a malfunction, smoke emission, or fire. Also, advise user
to keep the area around the unit clean.

Model

Power supply

Pipe length and height difference *2, *3, *4, *8

Rated

Voltage

Frequency

Max. pipe length per indoor

unit / for multi-system

Max.

height difference

Max. no. of bends per in-

door unit / for multi system

Refrigerant adjustment A

*5

MXZ-3A30NA
MXZ-4A36NA

208/

230 V

60 Hz

25 m (82 ft) / 70 m (230 ft)

15 m (49 ft)

25 / 70

20 g/m (1.06 oz each 5 ft)

 WARNING

(Could lead to death, serious injury, etc.)

Phillips screwdriver
Level
Scale

Utility knife or scissors

Torque wrench

Wrench (or spanner)

4 mm (5/32 in.) hexagonal wrench
Flare tool for R410A

Gauge manifold for R410A
Vacuum pump for R410A
Charge hose for R410A
Pipe cutter with reamer

*1 Never use pipes with thickness less than specified. The pressure resist-

ance will be insufficient.

*2 Use a copper pipe or a copper-alloy seamless pipe.
*3 Be careful not to crush or bend the pipe during pipe bending.

*4 Refrigerant pipe bending radius must be 100 mm (4 in.) or more.

*5 If pipe length exceeds 40 m (131 ft), additional refrigerant (R410A) charge

is  required.  (No  additional  charge  is  required  for  pipe  length  less  than

40 m (131 ft).)

Additional refrigerant (m) = A × (pipe length (m) - 40)

 Additional refrigerant (ft)  = A ×  (pipe length (ft) - 131)

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*6 Insulation material : Heat resisting foam plastic 0.045 specific gravity

*7 Be sure to use the insulation of specified thickness. Excessive thickness

may cause incorrect installation of the indoor unit and insufficient thick-

ness may cause dew drippage.

*8  If the outdoor unit is installed higher than the indoor unit, max. height

difference is reduced to 10 m (33 ft).

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9/7/2007   1:09:33 PM