Table Of Contents; Introduction; Combination - Panasonic CU-8ME1XPK Installation Manual

C
ONTENTS
Introduction .................................................................................... 1
Combination .................................................................................... 1
Standard supplied accessories ...................................................... 2
Optional accessories ...................................................................... 2
Technical specifications .................................................................. 2
Electrical specifications .................................................................. 2
Main components .......................................................................... 3
Selection of location ...................................................................... 3
Inspecting and handling the unit ................................................... 3
Unpacking and placing the unit ..................................................... 3
Refrigerant piping .......................................................................... 3
Connecting the refrigerant piping ................................................... 4
Selection of piping material ............................................................ 4
Example of connection ................................................................... 5
Leak test and vacuum drying .......................................................... 6
Pipe insulation ................................................................................. 6
Additional refrigerant charge .......................................................... 6
Field wiring .................................................................................... 6
Internal wiring - parts table ............................................................. 7
Power circuit and cable requirements ............................................ 7
General ............................................................................................ 7
Examples ......................................................................................... 8
Before operation ............................................................................ 9
Checks before initial start-up .......................................................... 9
Test run ........................................................................................... 9
Caution for refrigerant leaks ........................................................ 10
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 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 PANASONIC DEALER FOR
ADVICE AND INFORMATION.
- The new refrigerant requires strict cautions for keeping the
system clean, dry and tight.
A.Clean and dry
Foreign materials (including mineral oils such as SUNISO oil
or moisture) should be prevented from getting mixed into the
system.
B.Tight
R407C does not contain any chlorine, does not destroy the
ozone layer, and does not reduce the earth's protection
against harmful ultraviolet radiation.
R407C 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 the chapter "Refrigerant piping work" carefully and follow
these procedures correctly.
1
- Since design pressure is 3.2MPa or 32bar (for R22 units:
2.8MPa or 28bar), pipes of larger wall thickness may be
required.
- Since R407C is a mixed refrigerant, the required additional
refrigerant must be charged in its liquid state. (If the refrigerant
is charged in a state of gas, its composition changes and the
system will not work properly.)
- The connected indoor units must be indoor units designed
exclusively for R407C. If indoor units for R22 are connected,
normal operation cannot be assured.
I
NTRODUCTION
This installation manual concerns UM heat recovery of the
Panasonic "CU-∗∗ME1XPK" series. These units are designed for
outdoor installation and used for cooling and heatpump
applications. The units are available in 2 standard sizes.
The present installation manual describes the procedures for unpacking,
installing and connecting the "CU-∗∗ME1XPK" 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.

Combination

The outdoor unit can be combined with the maximum number of
indoor units indicated bilow:
1
4
A
B
2
5
C
3
A total capacity sum of all indoor units
B total copacity sum of cool/heat units
C total capacity sum of downstream indoor units
1 outdoor unit
2 HR box
3 indoor unit
4 three lines: discharge gas line, suction gas line, liquid line
5 two lines: (suction) gas line, liquid line
6 cool or heat mode can be selected
7 cool-only unit
• Total capacity sum of indoor units (that can be connected for
each refrigerant line of outdoor unit). Any number of indoor units
can be connected if the figures under column A and B in the
table below are satisfied.
Outdoor unit
CU-8ME1XPK
CU-10ME1XPK
• Up to 13 indoor units can be connected to 1 outdoor unit
CU-8ME1XPK.
Up to 16 indoor units can be connected to 1 outdoor unit
CU-10ME1XPK.
• Make sure to connect indoor and HR boxes designed
exclusively for R407C.
• Refer to the catalogue and/or engineering data book for model
numbers of indoor units which can be connected.
Select a HR box according to the table below:
HR Box
CZ-100HR1HP
CZ-160HR1HP
5
C C C
6 7
A B
≤260 ≥100
≤325 ≥125
C
≤100
>100 ~ ≤160