U-5~48MX3
Urban Multi air conditioner
4PW16235-1C
Installation manual
1
C
ONTENTS
Page
1. Introduction .................................................................................... 1
1.1. Combination .......................................................................................... 1
1.2. Standard supplied accessories ............................................................. 2
1.3. Optional accessories ............................................................................. 2
1.4. Technical and Electrical specifications .................................................. 2
2. Main components .......................................................................... 2
3. Selection of location....................................................................... 2
4. Inspecting and handling the unit .................................................... 3
5. Unpacking and placing the unit...................................................... 3
6. Refrigerant piping .......................................................................... 4
6.1. Selection of piping material ................................................................... 4
6.2. Connecting the refrigerant piping .......................................................... 4
6.3. Example of connection .......................................................................... 7
6.4. Leak test and vacuum drying ................................................................ 9
6.5. Pipe insulation ..................................................................................... 10
6.6. Additional refrigerant charge ............................................................... 10
7. Field wiring................................................................................... 11
7.1. Internal wiring – Parts table................................................................. 11
7.2. Optional parts cool/heat selector......................................................... 12
7.3. Power circuit and cable requirements.................................................. 12
7.4. General................................................................................................ 13
7.5. Examples............................................................................................. 13
8. Before operation .......................................................................... 16
8.1. Checks before initial start-up............................................................... 16
8.2. Test run................................................................................................ 16
9. Caution for refrigerant leaks ........................................................ 17
1. I
NTRODUCTION
This installation manual concerns Urban Multi units of the Panasonic
MX3 series. These units are designed for outdoor installation and
used for cooling and heatpump applications. The MX3 series can be
combined from 6 main units and has nominal capacities ranging from
14.0 to 134 kW and nominal heating capacities ranging from 16.0 to
150 kW.
The MX3 units can be combined with Panasonic Urban Multi
indoor units for air conditioning purposes, and suitable for R-410A.
The present installation manual describes the procedures for
unpacking, installing and connecting the MX3 units. Installation of the
indoor units is not described in this manual. Always refer to the
installation manual supplied with these units for their installation.
1.1.
Combination
The indoor units can be installed in the following range.
■
Always use appropriate indoor units compatible with R-410A.
To learn which models of indoor units are compatible with
R-410A, 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 IT AWAY. KEEP IT IN
YOUR FILES FOR FUTURE REFERENCE.
IMPROPER INSTALLATION OR ATTACHMENT OF
EQUIPMENT OR ACCESSORIES COULD RESULT IN
ELECTRIC SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR
OTHER DAMAGE TO THE EQUIPMENT. BE SURE ONLY
TO USE ACCESSORIES MADE BY PANASONIC WHICH
ARE SPECIFICALLY DESIGNED FOR USE WITH THE
EQUIPMENT AND HAVE THEM INSTALLED BY A
PROFESSIONAL.
IF UNSURE OF INSTALLATION PROCEDURES OR USE,
ALWAYS CONTACT YOUR DEALER FOR ADVICE AND
INFORMATION.
The refrigerant R-410A requires strict cautions for keeping
the system clean, dry and tight.
■
Clean and dry
Foreign materials (including mineral oils such as
SUNISO oil or moisture) should be prevented from
getting mixed into the system.
■
Tight
R-410A does not contain any chlorine, does not
destroy the ozone layer, and does not reduce the
earth's protection against harmful ultraviolet radiation.
R-410A can contribute slightly to the greenhouse
effect if it is released. Therefore we should take
special attention to check the tightness of the
installation.
Read
"6. Refrigerant piping" on page 4
carefully and follow
these procedures correctly.
Since design pressure is 3.8 MPa or 38 bar (for R-407C
units: 3.3 MPa or 33 bar), pipes of larger wall thickness may
be required. Refer to paragraph
"6.1. Selection of piping
material" on page 4
.
Outdoor unit
Total capacity of
indoor units
Total quantity of
indoor units
U-5MX3
(*)
62.5
~ 162.5
8
U-8MX3
(*)
100
~ 260
13
U-10MX3
(*)
125
~ 325
16
U-12MX3
(*)
150
~ 390
19
U-14MX3
(*)
175
~ 455
20
U-16MX3
(*)
200
~ 520
20
U-18MX3
225
~ 585
20
U-20MX3
250
~ 650
20
U-22MX3
275
~ 715
22
U-24MX3
300
~ 780
32
U-26MX3
325
~ 845
32
U-28MX3
350
~ 910
32
U-30MX3
375
~ 975
32
U-32MX3
400
~ 1040
32
U-34MX3
425
~ 1105
34
U-36MX3
450
~ 1170
36
U-38MX3
475
~ 1235
38
U-40MX3
500
~ 1300
40
U-42MX3
525
~ 1365
40
U-44MX3
550
~ 1430
40
U-46MX3
575
~ 1495
40
U-48MX3
600
~ 1560
40
(*) = main unit
Summary of Contents for U-5MX3XPQ
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