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U-5~48MX3
Urban Multi air conditioner
4PW16235-1C

Installation manual

 

3

 

4. I

 

NSPECTING

 

 

 

AND

 

 

 

HANDLING

 

 

 

THE

 

 

 

UNIT

 

At delivery, the package should be checked and any damage should
be reported immediately to the carrier claims agent.

When handling the unit, take into account the following:

 

1

 

Fragile, handle the unit with care.

Keep the unit upright in order to avoid compressor damage.

 

2

 

Choose on beforehand the path along which the unit is to be
brought in.

 

3

 

Lift the unit preferably with a crane and 2 belts of at least 8 m
long.

 

4

 

When lifting the unit with a crane, always use protectors to
prevent belt damage and pay attention to the position of the
unit’s centre of gravity.

 

 

5

 

Bring the unit as close to its final installation position in its
original package to prevent damage during transport. 

(See

figure 3)

 

5. U

 

NPACKING

 

 

 

AND

 

 

 

PLACING

 

 

 

THE

 

 

 

UNIT

 

 

Remove the four screws fixing the unit to the pallet.

 

 

Make sure the unit is installed level on a sufficiently strong base
to prevent vibration and noise.

 

 

Fasten the unit in place using four anchor bolts M12.

 

 

Make sure the base under the unit is extended more than
765 mm behind the unit.

 

 

The unit must be installed on a solid longitudinal foundation
(steelbeam frame or concrete) as indicated in 

figure 4

.

 

PRECAUTION

 

Block all gaps in the holes for passing out piping and wiring using
sealing material (field supply). (Small animals may enter the
machine.)

Example: passing piping out through the front

 

 

The equipment described in this manual may cause
electronic noise generated from radio-frequency
energy. The equipment complies to specifications that
are designed to provide reasonable protection against
such interference. However, there is no guarantee that
interference will not occur in a particular installation.

It is therefore recommended to install the equipment and
electric wires keeping proper distances away from stereo
equipment, personal computers, etc... 

(See figure 2)

.

In extreme circumstances you should keep distances of
3 m or more and use conduit tubes for power and
transmission lines.

 

 

In heavy snowfall areas, select an installation site
where snow will not affect operation of the unit.

 

 

The refrigerant R-410A itself is nontoxic,
nonflammable and is safe. If the refrigerant should
leak however, its concentration may exceed the
allowable limit depending on room size. Due to this it
could be necessary to take measures against
leakage. Refer to the chapter 

"9. Caution  for

refrigerant leaks" on page 17

.

 

 

Do not install in the following locations.

Locations where sulfurous acids and other corrosive
gases may be present in the atmosphere.
Copper piping and soldered joints may corrode,
causing refrigerant to leak.

Locations where equipment that produces electro-
magnetic waves is found.
The electromagnetic waves may cause the control
system to malfunction, preventing normal operation.

Locations where flammable gases may leak, where
thinner, gasoline, and other volatile substances are
handled, or where carbon dust and other incendiary
substances are found in the atmosphere.
Leaked gas may accumulate around the unit, causing
an explosion.

1

Personal computer or radio

2

Fuse

3

Earth leak detector

4

Remote controller

5

Cool/heat selector

6

Indoor unit

 

1

 

Packaging material

 

2

 

Opening (large)

 

3

 

Belt sling

 

4

 

Opening (small)(40x30)

 

5

 

Protector

 

Model

A

B

 

U-5MX3

635

497

U-8+10MX3

930

792

U-12~16MX3

1240

1102

 

Do not use stands to support the corners. 

(See figure 5)

 

 

Prepare a water drainage channel around the
foundation to drain waste water from around the unit.

 

 

If the unit is to be installed on a roof, check the
strength of the roof and its drainage facilities first.

 

 

If the unit is to be installed on a frame, install the
waterproofing board within a distance of 150 mm
under the unit in order to prevent infiltration of water
coming from under the unit.

X

Not allowed

O

Allowed

1

2

3

1

Plug the areas marked with “

“.

(When the piping is routed from the front 
panel.)

2

Gas side piping

3

Liquid side piping

Summary of Contents for U-5MX3XPQ

Page 1: ...14MX3XPQ A U 16MX3XPQ A U 18MX3XPQ U 20MX3XPQ U 22MX3XPQ U 24MX3XPQ U 26MX3XPQ U 28MX3XPQ U 30MX3XPQ U 32MX3XPQ U 34MX3XPQ U 36MX3XPQ U 38MX3XPQ U 40MX3XPQ U 42MX3XPQ U 44MX3XPQ U 46MX3XPQ U 48MX3XPQ...

Page 2: ...D c H h h1 h2 1500 1 3 5 4 2 2 mm 6 3 1 0 0 0 1 0 0 0 1000 1 50 0 1500 1500 722 737 80 80 765 A B 1 2 4 5 6 7 3 7 1 6 1 2 4 5 3 5 3 3 2 1 5 3 3 1 3 3 4 4 4 4 9 4 4 5 7 7 5 5 2 5 5 5 5 6 2 6 9 2 2 6 6...

Page 3: ...4 5 6 7 17 8 12 20 18 18 1 2 1 2 5 3 3 3 3 5 5 5 7 5 4 4 4 4 4 6 A B F2 F2 F1 F1 A B C Q1Q2 1 4 3 2 2 6 6 6 5 1 2 3 3 4 4 5 6 3 4 3 4 6 3 4 6 F2 F1 F2 F1 F2 F1 F2 F1 F2 F1 2 1 A B C A B C F1 F2 F1 F2...

Page 4: ...16 17 18 5 1 7 10 3 2 9 6 6 6 6 7 4 11 8 6 6 6 6 6 6 7 7 9 8 4 11 6 6 1 10 3 2 6 6 6 6 18 TO IN D UNIT F1 F2 DS1 1 2 3 4 OFF ON O U T I N F1 F2 F1 F2 F1 F2 1 A B C A B C 1 DS1 1 2 3 4 OFF ON O U T I N...

Page 5: ...0A refer to the product catalogs Total capacity quantity of indoor units U 5 48MX3 Urban Multi air conditioner Installation manual READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP THE UNIT DO NOT THROW...

Page 6: ...fer to figure 1 and choose one of the possibilities In case of an installation site where only the sides A B have obstacles the wall heights have no influence on any indicated service space dimensions...

Page 7: ...uipment personal computers etc See figure 2 In extreme circumstances you should keep distances of 3 m or more and use conduit tubes for power and transmission lines In heavy snowfall areas select an i...

Page 8: ...frigerant All field piping must be installed by a licensed refrigeration technician and must comply with relevant local and national regulations CAUTION TO BE TAKEN WHEN BRAZING REFRIGERANT PIPING Do...

Page 9: ...recommended pipe size is not available stick to the original pipe diameter which may result in a small capacity decrease Cautions for installation of multiple outdoor units 1 The piping between the o...

Page 10: ...e outdoor unit connecting pipe kits or between the outdoor units exceeds 2 m create a rise of 200 mm or more in the gas line within a length of 2 m from the kit If 2 m If 2 m A Unit A B Unit B C Unit...

Page 11: ...t 8 i 40 m Refrigerant branch kit selection Refrigerant branch kits can only be used with R 410A How to select the line branch pipe When using line branch pipe at the first branch counted from the out...

Page 12: ...unit is U 34MX3 and the piping lengths are as below R 30x0 25 10x0 17 10x0 11 40x0 054 49x0 022 6 7 538 R 7 5 kg A B C D Outdoor unit capacity type Piping size outer diameter Gas pipe Liquid pipe U 5...

Page 13: ...backseat type Always use the special tool 3 Make sure to tighten the cap securely Closing stop valve 1 Remove the cap and turn the valve clockwise with the hexagon wrench 2 Securely tighten the valve...

Page 14: ...e additional refrigerant to be charged on page 8 and fill in the amount in the Additional refrigerant charge label attached to the unit After the vacuum drying is finished charge the additional refrig...

Page 15: ...oor unit installed See figure 9 1 Fully open the gas line stop valve oil equalizing line stop valve liquid line stop valve and valves A and B above must be left fully closed start the additional refri...

Page 16: ...ection wiring to outdoor outdoor transmission F1 F2 outdoor indoor transmission F1 F2 outdoor multi transmission Q1 Q2 refer to 7 5 Examples on page 13 For connection wiring to the central remote cont...

Page 17: ...n earth leak detector capable of handling high harmonics needs to be used in order to prevent malfunctioning of the earth leak detector itself Earth leak detector which are especially for protecting g...

Page 18: ...torque for the terminal screws Precautions when connecting the ground When pulling the ground wire out wire it so that it comes through the cut out section of the cup washer An improper ground connect...

Page 19: ...The interconnecting wiring between the outdoor units must be 30 m See the paragraph Fixing field line connection on page 14 A Electric wiring diagram Printed on the back of the electric box lid 1 Cut...

Page 20: ...y For that purpose perform normal operation using the remote controller after the check operation Make sure that the circuit breaker on the power supply panel of the installation is switched off Attac...

Page 21: ...entration level is required According to the appropriate European Standard the maximum allowed concentration level of refrigerant to a humanly space for R 410A is limited to 0 44 kg m3 Pay special att...

Page 22: ...of the maximum concentration level then it will be necessary to revise the system Please consult your supplier NOTES amount of refrigerant in a single unit system amount of refrigerant with which the...

Page 23: ...NOTES NOTES...

Page 24: ...4PWEN16235 1C...

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