1
English
RX5MY1 - 48MY1(E)
VRV
II
System air conditioner
Installation manual
CONTENTS
1. INTRODUCTION...................................................................... 1
1-1. Combination ...................................................................... 1
1-2. Standard operation limit .................................................... 2
1-3. Standard supplied accessories ......................................... 2
1-4. Option accessory .............................................................. 2
1-5. Technical specifications .................................................... 2
1-6. Electrical specifications ..................................................... 4
2. MAIN COMPONENTS ............................................................. 5
3. SELECTION OF LOCATION ................................................... 5
4. INSPECTING AND HANDLING THE UNIT ............................. 5
5. UNPACKING AND PLACING THE UNIT................................. 6
6. REFRIGERANT PIPING .......................................................... 6
6-1. Selection of piping material ............................................... 6
6-2. Connecting the refrigerant piping ...................................... 6
6-3. Example of connection...................................................... 9
6-4. Leak test and vacuum drying .......................................... 10
6-5. Pipe insulation................................................................. 11
6-6. Additional refrigerant charge ........................................... 11
7. FIELD WIRING ...................................................................... 12
7-1. Optional parts cool/heat selector .................................... 12
7-2. Power circuit and cable requirements ............................. 12
7-3. General ........................................................................... 12
7-4. Examples ........................................................................ 12
8. BEFORE OPERATION .......................................................... 14
8-1. Checks before initial start-up .......................................... 14
8-2. Test run ........................................................................... 15
9. CAUTION FOR REFRIGERANT LEAKS ............................... 16
Caution
READ THIS MANUAL ATTENTIVELY BEFORE STARTING UP
THE UNIT. DO NOT THROW IT AWAY. KEEP IT IN YOUR
FILES FOR FUTURE REFERENCE.
Caution
IMPROPER INSTALLATION OR ATTACHMENT OF EQUIP-
MENT OR ACCESSORIES COULD RESULT IN ELECTRIC
SHOCK, SHORT-CIRCUIT, LEAKS, FIRE OR OTHER DAM-
AGE TO THE EQUIPMENT. BE SURE ONLY TO USE ACCES-
SORIES MADE BY DAIKIN 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 DAIKIN DEALER FOR ADVICE
AND INFORMATION.
Caution
The refrigerant R22 requires strict cautions for keeping the sys-
tem clean, dry and tight.
A.Clean and dry
Foreign materials should be prevented from getting mixed into
the system.
B.Tight
R22 contain chlorine, destroy the ozone layer, and reduce the
earth’s protection against harmful ultraviolet radiation.
R22 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.
Caution
The indoor unit is for R22. See the catalog for indoor unit models
which can be connected.
(Normal operation is not possible when connected to other
units.)
Caution
Do not allow children to mount on the outdoor unit, or avoid
placing any object on it. Falling or tumble may result in injury.
〈〈〈〈
Safety Precaution
〉〉〉〉
The PCI Data Station is a class A product. In a domestic environment
this product may cause radio interference in which case the user may
be required to take adequate measures.
1.
INTRODUCTION
This installation manual concerns VRV inverters of the Daikin
RX-M series. These units are designed for outdoor installation and
used for cooling and heatpump applications. The units are available
in 3 standard sizes with nominal cooling capacities ranging from 14.0
to 133.5kW and nominal heating capacities ranging from 16.0 to
150.0kW.
The RX-M units can be combined with Daikin VRV series indoor units
for air conditioning purposes.
The present installation manual describes the procedures for
unpacking, installing and connecting the RX-M 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 R22.
To lean which models of indoor units are compatible with
R22, refer to the product catalogs.
• Total capacity/quantity of indoor units
〈
Outdoor unit
〉
〈
Total capacity of indoor units
〉 〈
Total quantity of indoor units
〉
RX5MY1(E) ............. 62.5 ~ 162.5
8 units
RX8MY1(E) ............... 100 ~ 260
13 units
RX10MY1(E) ............ 125 ~ 325
16 units
RX12MY1(E) ............. 150 ~ 390
19 units
RX14MY1(E) ............. 175 ~ 455
20 units
RX16MY1(E) ............. 200 ~ 520
20 units
RX18MY1(E) ............. 225 ~ 585
20 units
RX20MY1(E) ............. 250 ~ 650
20 units
RX22MY1(E) ............. 275 ~ 715
22 units
RX24MY1(E) ............. 300 ~ 780
32 units
RX26MY1(E) ............. 325 ~ 845
32 units
RX28MY1(E) ............. 350 ~ 910
32 units
RX30MY1(E) ............. 375 ~ 975
32 units
RX32MY1(E) ............. 400 ~ 1040
32 units
RX34MY1(E) ............. 425 ~ 1105
34 units
RX36MY1(E) ............. 450 ~ 1170
36 units
RX38MY1(E) ............. 475 ~ 1235
38 units
RX40MY1(E) ............. 500 ~ 1300
40 units
RX42MY1(E) ............. 525 ~ 1365
40 units
RX44MY1(E) ............. 550 ~ 1430
40 units
RX46MY1(E) ............. 575 ~ 1495
40 units
RX48MY1(E) ............. 600 ~ 1560
40 units
01_3P114261-9L-EN.fm Page 1 Thursday, August 28, 2003 3:33 PM
